TURNING AIR INTO SOLUTIONS. BACKWARD CURVED HIGH PRESSURE FANS MODEL BCS

TURNIN AIR INTO SOLUTIONS. BACKWARD CURVED HIH PRESSURE FANS MODEL BCS CATALO 400 October 2017

CENTRIFUAL FANS Overview BCS The BCS fan from Twin City Fan & Blower is a high efficiency backward curved industrial fan designed for handling relatively clean air in high pressure applications. Typical industries include general HVAC (exhaust, filtration, return and supply, air of commercial buildings), automotive, fertilizer, metal and mineral processing, pulp and paper, petrochemical, pharmaceutical, power, water and wastewater treatment. Because the BCS features a wider wheel and housing, producing a high volume of air at a lower velocity, the need for an expansion evasé is eliminated. BCS fans are available with a variety of construction options and accessories, offering the versatility and flexibility required in today's industrial applications. Arrangement 8 Typical Applications Include Air Pollution Control (including filtration and dust collection), Chemical/Corrosive Process, Combustion Air Drying Process Exhaust, Forced Draft on Fluid Bed Boilers, eneral HVAC, eneral Manufacturing, High Temperature Applications, Induced Draft After Baghouse and other Process, Moisture Blow-Off, Product Cooling, Water Treatment Wheel Types Backward Curved Configurations Available in direct and belt driven Arrangements 1, 3SI, 4, 7SI, 8, 9, 9H and 9F Optional Construction High Temperature, Nominally Leaktight Construction, Spark Resistant, Split Housings Arrangement 9 FS10 For complete product performance, drawings, and available accessories, Download Fan Selector 10 at tcf.com. 2 TWIN CITY FAN - CATALO 400

CENTRIFUAL FANS Overview BCS Sizes and Performance 16.5" to 89" wheel diameters Airflow to 280,000 CFM Static pressure to 40" w.g. Airstream temperatures to 800 F Construction Design 14 for tip speeds up to 14,000 FPM Design 17 for tip speeds up to 17,000 FPM Design 22 for tip speeds up to 22,000 FPM Design 26 for tip speeds up to 26,000 FPM RTO System with Model BCS WHEEL DESIN The BCS wheel features heavy-gauge steel construction and a non-overloading wheel design, suitable for applications requiring large volumes of air at moderate to high pressures. The high efficiency wheel features backward curved blades of single thickness, continuously welded to the rim and backplate. A conical spun shroud (rim) makes BCS fans less susceptible to the performance losses associated with poor inlet conditions. All BCS wheels are statically and dynamically balanced to grade 6.3 per ANSI S2.19 for smooth operation prior to assembly of the fan, followed by a final balance of the entire rotating assembly. BCS Wheel & Blade Profile WWW.TCF.COM 3

CONSTRUCTION Housings Heavy-gauge, reinforced, continuously welded housings provide strength and durability for extended service life a necessity in all commercial and industrial installations. Outlet flanges for duct-connection as well as rigidity are standard. Inlet collars for slip-joint connection and lifting lugs are also standard. All housings are reinforced with rigid bracing to increase structural integrity. The support angles are intermittently welded and caulked between welds to prevent bleed-through corrosion. Precisely positioned cutoff plates and aerodynamically spun inlet cones provide high efficiency and smooth airflow through the fan. Shaft Shafts are AISI rade 1045 hot-rolled steel accurately turned, ground, polished, and ring gauged for accuracy. Shafts are generously sized for first critical speed of at least 1.43 times the maximum speed for the class. Bearings Bearings are heavy-duty, grease-lubricated, anti-friction ball or roller, self-aligning, pillow block type and are selected for minimum average bearing life (ABMA L-50) in excess of 200,000 hours at the maximum fan RPM. INSTALLATION PHOTOS Process Fans for Wood Pelletizing Dust Collection System Exhaust Fans for Nuclear Plant 4 TWIN CITY FAN - CATALO 400

OPTIONAL CONSTRUCTION Split Housing A flanged horizontal split housing is available on the fan s centerline. A pie-shaped or 3-way split are also available for wheel removal without disturbing the ductwork. High Temperature Construction Standard fan design options are available to handle airstream temperatures to 800 F. Consult your Twin City Fan & Blower representative for applications over 800 F or when aluminum (spark resistant) or stainless steel construction is required. The fan bearings should be kept outside of the hot airstream and below 130 F ambient. High temperature operating limits, available arrangements, and necessary modifications are shown in Table 1. Table 1. High Temperature Construction Requirements Horizontal Split Housings (also available with Pie-Shaped & Three-Way Split Housings) TEMPERATURE ( F) TYPE OF BEARIN LUBRICATION OTHER REQUIREMENTS AVAILABLE ARRANEMENTS 22 to 300 Ball or Roller rease Standard Fan 1, 8, 9, 9F 301 to 500 Ball or Roller High Temp. rease Shaft Cooler, Shaft Seal Expansion & Non-Expansion Bearings 1, 8, 9, 9F 501 to 600 Ball or Roller High Temp. rease Same as 301 to 500 With Additional of High Temp Aluminum Paint 1, 8, 9, 9F 601 to 800 Ball or Roller High Temp. rease Same as 501 to 600 With Modification of Bearing Pedestal 1, 8, 9F High Temperature Derating Factors When elevated temperatures are encountered, maximum RPM allowable must be derated according to the table below. For stainless steel derates, contact the factory. AIRSTREAM TEMPERATURE ( F) WHEEL MATERIAL STANDARD STEEL DES. 17 DES. 14,,22, 26 70 1.00 1.00 200 0.99 0.97 250 0.98 0.96 300 0.98 0.95 350 0.97 0.94 400 0.96 0.93 450 0.94 0.92 500 0.93 0.92 550 0.92 0.91 600 0.90 0.90 650 0.89 0.89 700 0.88 0.87 750 0.87 0.86 800 0.84 0.84 Above 800 Consult Factory Spark Resistant Construction Fan applications may involve the handling of potentially explosive or flammable particles, fumes or vapors. Such applications require careful consideration by the system designer to insure the safe handling of such gases. Twin City Fan & Blower offers the following classifications of spark resistant construction per AMCA Standard 99-0401-86. It is the specifier s or the user s responsibility to specify the type of spark resistant construction with full recognition of the potential hazards and the degree of protection required. Type A: All parts of the fan in contact with the air or gas being handled shall be made of nonferrous material usually aluminum and limited to 250 F. Type B: The fan shall have a nonferrous wheel or impeller and nonferrous ring about the opening through which the shaft passes usually aluminum wheel and rub ring and limited to 250 F. Type C: The fan shall be so constructed that a shift of the wheel or impeller or shaft will not permit two ferrous parts of the fan to rub or strike. This construction is limited to 500 F. Construction to 800 F is available using a steel inlet cone with copper/bronze lining. WWW.TCF.COM 5

ARRANEMENTS Arrangement 1 Arrangement 1 is usually belt driven. The wheel is overhung on the shaft, i.e., mounted at the end of the shaft. The motor can be mounted in any of the four AMCA standard motor positions shown on page 10. The two fan bearings are mounted on the bearing pedestal, out of the airstream, which makes them ideal for high temperature or contaminated air applications. Belt driven configurations offer performance flexibility. Arrangement 3SI Arrangement 3SI is usually direct drive. Like the Arrangement 3, the wheel is mounted between the bearings. The Arrangement 3SI utilizes an attached inlet box to locate the bearing outside of the airstream on independent bearing pedestals which allows for elevated operating temperatures and relatively clean air. The Arrangement 3SI includes a pie split housing for easy wheel removal. The motor is located by the customer off the fan assembly and direct coupled to the shaft opposite of the inlet box side. Arrangement 4 Arrangement 4 is a direct drive fan. The wheel is mounted directly to the motor shaft with the motor mounted to a pedestal. Arrangement 4 offers low maintenance since there are no fan bearings, fan shaft or drive parts to maintain. Arrangement 4 fans are typically limited up to size 365. Arrangement 7SI Arrangement 7SI is direct drive. Like the Arrangement 3SI, the wheel is mounted between the bearings. The Arrangement 7SI includes an integrated inlet box to locate the bearing outside of the airstream. The pedestal is designed to accommodate the motor, flexible coupling and one bearing. A pie split housing is provided for easy wheel removal. The fan assembly is then mounted on a unitary base as standard. An inertia base is an available option. 6 TWIN CITY FAN - CATALO 400

ARRANEMENTS Arrangement 8 Arrangement 8 is a modified version of Arrangement 1 used for direct drive. The Arrangement 1 bearing pedestal is extended to accommodate the motor. A flexible coupling connects the fan and motor shaft. Arrangement 9 Arrangement 9 is available as belt driven only. A motor slide base is mounted on the side of the bearing pedestal. This arrangement permits the unit to ship as a complete assembly with the motor and drive mounted. Typically, the motor is mounted on the left side of the pedestal for CW rotation fans and on the right side for CCW rotation fans. Arrangement 9F Arrangement 9F is available when an Arrangement 9 requires a motor which is too large to mount on the bearing pedestal. The fan frame is extended to accommodate the motor, for horizontal mounting, similar to an Arrangement 1 fan. Arrangement 9F is not suitable for mounting vibration isolators directly under the fan. Arrangement 9H Arrangement 9H is available for motor mounting on the side of the bearing pedestal when horizontal motor adjustment is preferred. The pedestal is extended on one side to accommodate the motor for horizontal mounting. Typically, the motor is mounted on the left side of the pedestal for CW rotation fans and on the right side for CCW rotation fans. WWW.TCF.COM 7

OPTIONS/ACCESSORIES Customer Ductwork 5 4 Customer Ductwork 3 6 7 1 2 Optional Bottom Pan 1 2 3 4 External Inlet Vane For reduced flow situations with relatively clean air, inlet vane type dampers are available to maintain fan efficiency. The inlet vanes are external type attached to the inlet of the fan. Standard construction inlet vanes are suitable in applications up to 300 F. High temperature inlet vanes are also available for temperatures up to 600 F. Inertia Base See description on page 11. Flanged Inlet/Outlet Punched inlet flanges are available for duct mounting. Punched outlet flanges are welded to the fan outlet. Split Housing, Pie-Shaped All sizes are designed to permit wheel removal through the fan inlet. Sizes 270 and larger are available with a horizontal, pie-shaped, or 3-way split housing, which allows removal of the wheel and shaft without disconnecting ductwork. 5 Inlet/Outlet Companion Flanges & Flex Connectors (Round & Rectangular) Companion flanges are commonly connected to a user s duct for easy installation of flexible connections between the fan and duct. Companion flanges and flex connectors are punched to match the fan s inlet or outlet hole patterns. 6 7 Coupling & Shaft uards (Exposed Bearings) A metal guard spanning the shaft between the bearings, allowing open access to the bearings for lubrication and vibration or temperature monitoring. A metal guard covering shaft and bearing is available. Coupling guard is designed to cover the rotating shaft and drive components. Shaft Seals A variety of shaft seals are available to prevent contaminants in the airstream from passing through the shaft hole in the fan housing. The shaft seal is provided as standard on all fans with applications over 300 F and fans with split housings. Although shaft seals minimize air leakage, they are not a gas-tight design. 8 TWIN CITY FAN - CATALO 400

OPTIONS/ACCESSORIES 5 4 6 Extended Lube Lines 7 3 1 2 1 2 3 4 5 Inlet/Outlet Safety Screens Available for mounting in the fan inlet or outlet in non-ducted applications. Unitary Base See description on page 11. Belt uard Belt guard protects personnel from the moving drive parts. OSHA and quick access guards are available. Shaft & Bearing uard Sheet metal guard cover shaft and bearings. An exposed bearing shaft guard spanning the shaft between the bearings is available to provide open access to bearings for lubrication and vibration or temperature monitoring. Outlet Dampers Double surface airfoil blades are available in either parallel or opposed blade design. 6 Lube Lines Allow for easy lubrication of bearings on belt driven units without disassembly by extending lubrication lines from fan bearings to exterior of pedestal. 7 Quick Access Door For quick wheel inspection and maintenance. Access doors are specified where examination and cleaning of the fan interior is required. Other Accessories Include: Piezometer Ring Vibration Sensors Drain Isolation Base Inlet Boxes Raised/Bolted Access Insulation Pins Door Bearing RTD Special Width & Diameter Wheels WWW.TCF.COM 9

STANDARD CONFIURATIONS CLOCKWISE (CW) - ROTATION & DISCHARE (ROTATION VIEW FROM DRIVE SIDE) UBD Upblast CW 360 TAU Top Angular Up CW 45 THD Top Horizontal CW 90 TAD Top Angular Down CW 135 DBD Downblast CW 180 BHD Bottom Horizontal CW 270 BAU Bottom Angular Up CW 315 COUNTER CLOCKWISE (CCW) - ROTATION & DISCHARE (ROTATION VIEW FROM DRIVE SIDE) UBD Upblast CCW 360 TAU Top Angular Up CCW 45 THD Top Horizontal CCW 90 TAD Top Angular Down CCW 135 DBD Downblast CCW 180 BHD Bottom Horizontal CCW 270 BAU Bottom Angular Up CCW 315 MOTOR POSITIONS W Z Y X L R L R Arrangement 1 Arrangement 9 Arrangement 9F Standard F1 F2 Conduit Boxes viewed from drive side of motor (looking at motor shaft) 10 TWIN CITY FAN - CATALO 400

VIBRATION ISOLATION Unitary Bases The structural steel base provides common support to fan, motor and drive including guards. This style of base is designed for use without isolators and requires adequate foundation integrity for proper operation. Isolation Bases Isolation bases provide a common support to fan, motor and drive, including guards. Constructed with heavy duty structural channels and inlcudes spring isolations. Not available on Arrangement 8. Flexible connectors at inlet and outlet are required. Inertia Bases Inertia bases provide a common support to fan, motor and drive including guards and utilize heavy duty structural channel with spring isolators. Inertia bases incorporate reinforcing rods and require customer supplied concrete. Inertia bases are typically used on longer, direct drive fans to mitigate assembly deflection, maintaining proper alignment between the motor, coupling, shaft and bearings. Flexible connectors at inlet and outlet are required. WWW.TCF.COM 11

INLET BOXES INTERAL INLET BOX (ATTACHED) DETACHED INLET BOX (BOLT ON) DETACHED INLET BOX (FREE STANDIN) Inlet Box Positions for Centrifugal Fans INLET BOX POSITIONS AND DESCRIPTIONS 360 45 Angular Down Intake 90 Horizontal Right Intake 315 45 135 Angular Up Intake 180 Bottom Up Intake 315 360 45 225 Angular Up Intake 270 Horizontal Left Intake 270 270 90 90 315 Angular Down Intake 360 Top Down Intake 225 180 135 Reference line is the Top Vertical Axis through center of fan shaft. 225 135 Position of inlet box and air entry to inlet box is determined from drive side of fan. 180 Position of inlet box is designated in degrees clockwise from Top Vertical Axis as shown. Positions 135 to 225 in some cases interfere seriously with floor structure. 12 TWIN CITY FAN - CATALO 400

ENINEERIN DATA Performance Correction For Temperature & Altitude The performance tables in this catalog are based on fans handling standard air at a density of 0.075 pounds per cubic foot. This is equivalent to air at 70 F at sea level (29.92 Hg barometric pressure). Thus, when specified performance is at a density different Temperature and Altitude Density Ratios AIR TEMP F than standard, it must be converted to the equivalent standard conditions before entering the performance tables. The equivalent standard conditions can be calculated by using the Temperature and Altitude Density Ratios shown below. ALTITUDE IN FEET ABOVE SEA LEVEL 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 15000 BAROMETRIC PRESSURE IN INCHES OF MERCURY 29.92 28.86 27.82 26.82 25.84 24.90 23.98 23.09 22.22 21.39 20.58 16.89 50 1.293 1.247 1.201 1.159 1.116 1.076 1.036 0.997 0.960 0.924 0.889 0.729 0 1.152 1.111 1.071 1.032 0.995 0.959 0.923 0.889 0.856 0.824 0.792 0.650 50 1.039 1.003 0.967 0.932 0.897 0.864 0.833 0.801 0.772 0.743 0.715 0.586 70 1.000 0.964 0.930 0.896 0.864 0.832 0.801 0.772 0.743 0.714 0.688 0.564 100 0.946 0.912 0.880 0.848 0.818 0.787 0.758 0.730 0.703 0.676 0.651 0.534 150 0.869 0.838 0.808 0.770 0.751 0.723 0.696 0.671 0.646 0.620 0.598 0.490 200 0.803 0.774 0.747 0.720 0.694 0.668 0.643 0.620 0.596 0.573 0.552 0.453 250 0.747 0.720 0.694 0.669 0.645 0.622 0.598 0.576 0.555 0.533 0.514 0.421 300 0.697 0.672 0.648 0.624 0.604 0.580 0.558 0.538 0.518 0.498 0.480 0.393 350 0.654 0.631 0.608 0.586 0.565 0.544 0.524 0.505 0.486 0.467 0.450 0.369 400 0.616 0.594 0.573 0.552 0.532 0.513 0.493 0.476 0.458 0.440 0.424 0.347 450 0.582 0.561 0.542 0.522 0.503 0.484 0.466 0.449 0.433 0.416 0.401 0.328 500 0.552 0.532 0.513 0.495 0.477 0.459 0.442 0.426 0.410 0.394 0.380 0.311 550 0.525 0.506 0.488 0.470 0.454 0.437 0.421 0.405 0.390 0.375 0.361 0.296 600 0.500 0.482 0.465 0.448 0.432 0.416 0.400 0.386 0.372 0.352 0.344 0.282 650 0.477 0.460 0.444 0.427 0.412 0.397 0.382 0.368 0.354 0.341 0.328 0.269 700 0.457 0.441 0.425 0.410 0.395 0.380 0.366 0.353 0.340 0.326 0.315 0.258 750 0.439 0.423 0.407 0.393 0.379 0.365 0.351 0.338 0.326 0.313 0.303 0.248 800 0.420 0.404 0.389 0.375 0.362 0.350 0.336 0.323 0.311 0.300 0.290 0.237 850 0.404 0.391 0.376 0.363 0.349 0.336 0.324 0.312 0.300 0.289 0.279 0.228 900 0.389 0.376 0.363 0.349 0.336 0.324 0.312 0.300 0.289 0.279 0.268 0.220 950 0.376 0.363 0.350 0.337 0.325 0.313 0.301 0.290 0.279 0.269 0.259 0.212 1000 0.363 0.350 0.338 0.325 0.314 0.302 0.291 0.280 0.270 0.259 0.250 0.205 Maximum RPM, Wheel Weights & WR 2 DESIN 14 DESIN 17 DESIN 22 DESIN 26 FAN SIZE MAX. WEIHT WR 2 MAX. WEIHT WR 2 MAX. WEIHT WR 2 MAX. WEIHT WR 2 RPM (LB) (LB-FT 2 ) RPM (LB) (LB-FT 2 ) RPM (LB) (LB-FT 2 ) RPM (LB) (LB-FT 2 ) 165 3241 31 8 4399 * 42 12 182 2931 41 12 3977 70 21 200 2674 53 20 3629 86 32 222 2404 82 35 3262 116 52 3777 126 59 245 2183 97 53 2963 140 75 3560 153 85 270 1981 106 82 2687 149 100 3112 162 112 3678 167 146 300 1783 131 127 2420 161 129 2801 173 146 3310 194 170 330 1621 186 219 2199 201 199 2546 207 214 3009 229 242 365 1467 224 291 1987 237 295 2302 294 391 2720 273 360 402 1329 265 427 1802 317 511 2088 349 595 2467 344 561 445 1202 412 781 1631 456 804 1888 492 898 2231 493 895 490 1092 481 1136 1481 613 1399 1780 686 1636 2027 702 1669 542 986 627 1792 1338 841 2387 1549 898 2642 1831 920 2673 600 891 746 2667 1082 949 3322 1401 983 3479 1655 1319 4859 660 810 1026 4053 984 1387 5704 1273 1309 5276 1504 1597 6829 730 735 1204 5980 890 1693 8759 1180 1548 7775 1360 2028 10773 807 663 1492 9358 804 2014 12992 1041 1992 12522 1230 2611 17107 890 602 1974 14185 730 2392 19054 944 2779 22036 1116 3835 30972 * Maximum operating speed is limited to 4000 RPM. RPM listed above 4000 is for derating due to elevated temperatures. WWW.TCF.COM 13

ENINEERIN DATA Shaft & Bearings Data ARRANEMENT 1, 9 & 9F ARRANEMENT 8 ARRANEMENT 1, 9 & 9F ARRANEMENT 8 FAN DESIN FAN DESIN SIZE BCS MAX. SHAFT SHAFT BRS. BRS. SIZE BCS MAX. SHAFT SHAFT BRS. BRS. MTR. HP DIA. DIA. MTR. HP DIA. DIA. 14 10 1.188 SDB 1.4375 HDB-C 14 75 2.688 RB 2.4375 RB 165 17 15 1.688 HDB 1.6875 HDB-C 17 200 3.438 RB-C 3.4375 RB 445 14 10 1.438 HDB 1.4375 HDB-C 22 300 3.938 RB-C 3.9375 RB 182 17 25 1.688 RB-C 1.9375* HDB-C* 26 350 3.938 SRB 3.4375* RB* 14 15 1.438 HDB 1.6875 HDB-C 14 100 2.938 RB 2.4375 RB 200 17 30 1.938 RB-C 2.1875 HDB-C 17 250 3.938 RB-C 3.4375 RB 490 14 15 1.688 HDB 1.6875 HDB-C 22 350 3.938 RB-C 3.9375* RB* 222 17 40 1.938 RB-C 2.4375 HDB-C 26 400 4.438 SRB 3.9375* RB* 22 60 2.438 RB-C 2.9375* HSHDB* 14 125 3.438 RB 2.6875 RB 14 20 1.938 HDB 1.6875 HDB-C 17 300 3.938 RB-C 3.9375 RB 542 245 17 50 2.188 RB-C 2.6875 RB 22 400 4.438 RB-C 3.9375 RB 22 75 2.438 RB-C 2.9375* HSHDB* 26 500 4.938 SRB 3.9375* RB* 14 25 1.938 HDB 1.9375 HDB 14 125 3.438 RB 2.6875 RB 270 17 75 2.188 RB-C 2.4375 HDB-C 17 250 3.938 RB-C 3.4375 RB 600 22 100 2.438 RB-C 2.9375* HSHDB* 22 500 4.938 SRB 3.9375 RB 26 125 2.938 SRB 2.9375* RB* 26 500 4.938 SRB 4.4375* RB* 14 30 2.188 HDB 1.9375 HDB 14 150 3.938 RB 3.4375 RB 300 17 100 2.438 RB-C 2.6875 RB 17 300 3.938 RB-C 3.9375 RB 660 22 125 2.688 RB-C 2.9375 RB 22 500 4.938 SRB 4.4375* RB* 26 150 2.938 SRB 3.4375* HSHDB* 26 500 4.938 SRB 4.9375* SRB* 14 40 2.188 HDB 2.1875 HDB 14 200 3.938 RB 3.9375 RB 330 17 100 2.438 RB-C 2.6875 RB 17 350 4.438 RB-C 4.4375* RB* 730 22 150 2.938 RB-C 2.9375* RB-C* 22 500 4.938 SRB 4.9375* RB* 26 150 2.938 SRB 3.4375* RB* 26 500 5.438 SRB 5.9375* SRB* 14 50 2.438 HDB 2.1875 HDB 14 250 4.438 SRB 3.9375 RB 365 17 125 2.688 RB-C 2.6875 RB 17 450 4.938 SRB 4.4375* RB* 807 22 150 2.938 RB-C 3.4375 RB 22 500 4.938 SRB 5.4375* SRB* 26 250 3.438 SRB 3.4375* RB* 26 500 5.438 SRB 5.9375* SRB* 14 60 2.438 RB 2.1875 HDB 14 300 4.938 SRB 4.4375* RB* 402 17 150 2.938 RB-C 2.9375 RB 17 500 4.938 SRB 4.9375* RB* 890 22 200 3.438 RB-C 3.4375 RB 22 500 4.938 SRB 5.4375* SRB* 26 350 3.938 SRB 3.4375* HSHDB* 26 500 6.938 SRB 5.9375* SRB* * Denotes bearing selections that may not be suitable for all applications. Consult Twin City Fan for application suitability. BEARIN CODES: SDB = Standard Duty Ball Bearing HDB = Heavy Duty Ball Bearing RB = Roller Bearing RB-C = Concentric Roller Bearing SRB = Roller Bearing with Split Pillow Block Housing HSRB = Hig-Speed Roller Bearing with Split Pillow Block Housing Bare Fan Weights (lb) FAN DESIN 14 DESIN 17 DESIN 22 DESIN 26 SIZE ARR. 1 ARR. 4 ARR. 8 ARR. 9 ARR. 9F ARR. 1 ARR. 4 ARR. 8 ARR. 9 ARR. 9F ARR. 1 ARR. 8 ARR. 9 ARR. 9F ARR. 1 ARR. 8 165 270 206 305 320 330 245 344 420 182 320 265 361 380 390 320 431 500 200 350 311 404 410 460 375 588 590 222 460 402 523 500 560 483 628 680 700 922 890 893 245 530 496 645 580 710 677 880 840 770 1113 940 943 270 610 585 761 690 810 1022 970 865 970 1411 1190 1194 1282 1667 300 810 703 914 830 1040 1277 1190 1080 1170 1463 1370 1238 1523 1980 330 990 1128 1050 1210 1547 1450 1309 1590 1976 1890 1672 1943 2526 365 1090 1413 1144 1197 1430 1858 1501 1573 1889 2456 1983 2078 2340 3042 402 1406 1825 1476 1546 1810 2353 1901 1991 2386 3101 2505 2624 3035 3945 445 1660 2152 1742 1824 2219 2885 2330 2441 3122 4059 3278 3434 3720 4835 490 1940 2514 2035 2131 2811 3655 2952 3093 3730 4849 3917 4103 4569 5940 542 2847 3675 2985 3123 3708 4821 3894 4079 4752 6178 4990 5227 5635 7326 600 3341 4312 3503 3665 4460 5798 4683 4906 5676 7379 5960 6244 6765 8795 660 4255 5517 4466 4676 5538 7199 5815 6091 6864 8923 7207 7551 7930 10308 730 5195 6735 5452 5709 7001 9101 7351 7701 8099 10528 8504 8908 9603 12484 807 5264 6835 5526 8739 11361 9176 9613 10134 13174 10641 11147 11878 15441 890 7262 9421 7622 10334 13434 10851 11367 12366 16075 12984 13602 15110 19643 14 TWIN CITY FAN - CATALO 400

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 3241 4399* NA NA 165 BCS Outlet Area: 1.57 ft 2 Wheel Diameter.: 16.50" Tip Speed (FPM): 4.32 x RPM 0.5" SP 1" SP 1.5" SP 2" SP 2.5" SP 3" SP 3.5" SP 4" SP 4.5" SP 1000 637 774 0.12 1031 0.26 1200 764 827 0.14 1051 0.28 1400 892 885 0.17 1091 0.32 1276 0.50 1457 0.72 1600 1019 947 0.21 1141 0.37 1311 0.55 1471 0.76 1630 1.02 1800 1146 1017 0.25 1199 0.43 1355 0.62 1503 0.83 1646 1.07 1787 1.34 2000 1274 1094 0.31 1258 0.50 1409 0.71 1546 0.92 1678 1.16 1806 1.41 1933 1.71 2060 2.05 2200 1401 1173 0.38 1319 0.57 1466 0.79 1596 1.02 1720 1.27 1840 1.53 1956 1.80 2071 2.11 2187 2.47 2400 1529 1254 0.45 1386 0.65 1525 0.89 1652 1.14 1768 1.39 1881 1.66 1991 1.94 2098 2.24 2204 2.56 2600 1656 1336 0.54 1459 0.75 1585 0.99 1710 1.26 1823 1.53 1929 1.80 2033 2.09 2135 2.40 2234 2.71 2800 1783 1418 0.63 1535 0.86 1649 1.11 1769 1.39 1880 1.68 1983 1.97 2081 2.26 2178 2.58 2272 2.90 3000 1911 1502 0.74 1613 0.99 1718 1.24 1829 1.53 1939 1.84 2040 2.14 2134 2.45 2226 2.77 2316 3.11 3200 2038 1587 0.86 1694 1.13 1792 1.39 1893 1.68 1998 2.00 2098 2.33 2191 2.66 2279 2.99 2365 3.33 3400 2166 1672 1.00 1775 1.28 1868 1.55 1961 1.85 2059 2.18 2157 2.52 2249 2.87 2335 3.22 2418 3.57 3600 2293 1758 1.15 1857 1.45 1946 1.74 2033 2.04 2123 2.37 2216 2.72 2307 3.09 2393 3.46 2474 3.83 3800 2420 1844 1.31 1939 1.63 2026 1.94 2108 2.25 2191 2.58 2278 2.94 2366 3.32 2452 3.72 2532 4.10 4000 2548 1931 1.49 2022 1.83 2106 2.16 2185 2.48 2263 2.82 2344 3.18 2427 3.57 2511 3.98 2591 4.39 5" SP 5.5" SP 6" SP 6.5" SP 7" SP 7.5" SP 8" SP 8.5" SP 9" SP 2600 1656 2332 3.05 2429 3.42 2528 3.83 2625 4.26 2721 4.71 2800 1783 2365 3.24 2456 3.59 2547 3.97 2637 4.37 2729 4.81 2819 5.28 2908 5.76 3000 1911 2405 3.45 2492 3.80 2578 4.17 2662 4.56 2747 4.97 2831 5.41 2916 5.88 3001 6.38 3084 6.89 3200 2038 2450 3.68 2533 4.04 2615 4.42 2696 4.80 2776 5.20 2855 5.62 2934 6.06 3013 6.52 3093 7.03 3400 2166 2499 3.93 2579 4.30 2658 4.69 2736 5.08 2812 5.48 2888 5.89 2963 6.32 3037 6.76 3112 7.23 3600 2293 2553 4.20 2629 4.58 2705 4.97 2780 5.38 2854 5.79 2926 6.20 2998 6.63 3070 7.07 3140 7.52 3800 2420 2609 4.49 2683 4.88 2756 5.28 2827 5.69 2899 6.11 2969 6.54 3039 6.98 3107 7.42 3175 7.87 4000 2548 2667 4.80 2740 5.21 2810 5.61 2880 6.03 2948 6.46 3015 6.89 3083 7.34 3149 7.79 3215 8.26 4200 2675 2725 5.11 2798 5.54 2867 5.97 2935 6.40 3001 6.83 3066 7.27 3130 7.72 3195 8.19 3258 8.66 4400 2803 2784 5.43 2856 5.88 2925 6.33 2992 6.78 3056 7.23 3120 7.69 3182 8.14 3244 8.61 3305 9.09 4600 2930 2843 5.76 2915 6.24 2984 6.71 3050 7.18 3113 7.64 3175 8.11 3236 8.58 3296 9.06 3355 9.54 4800 3057 2904 6.12 2974 6.60 3042 7.09 3108 7.59 3172 8.08 3233 8.56 3293 9.05 3351 9.54 3409 10.04 5000 3185 2968 6.50 3035 6.99 3101 7.49 3166 8.00 3230 8.52 3291 9.03 3350 9.53 3408 10.04 3465 10.55 5200 3312 3034 6.90 3097 7.39 3162 7.91 3225 8.43 3288 8.96 3349 9.50 3409 10.03 3466 10.56 3522 11.09 5400 3439 3103 7.33 3163 7.83 3224 8.35 3286 8.89 3347 9.43 3408 9.98 3467 10.54 3524 11.09 3580 11.64 5600 3567 3174 7.80 3231 8.30 3289 8.82 3348 9.36 3408 9.92 3467 10.48 3525 11.05 3582 11.62 3638 12.20 9.5" SP 10" SP 10.5" SP 11" SP 11.5" SP 12" SP 13" SP 14" SP 15" SP 3600 2293 3211 8.00 3281 8.49 3351 9.01 3421 9.55 3492 10.12 3562 10.70 3702 11.94 3800 2420 3243 8.34 3310 8.82 3376 9.31 3442 9.82 3509 10.37 3575 10.92 3709 12.12 3842 13.40 3972 14.72 4000 2548 3280 8.72 3344 9.20 3408 9.69 3472 10.20 3535 10.71 3598 11.25 3724 12.38 3851 13.61 3977 14.91 4200 2675 3321 9.14 3384 9.63 3446 10.12 3507 10.62 3568 11.13 3628 11.65 3748 12.75 3868 13.91 3988 15.16 4400 2803 3366 9.58 3427 10.08 3487 10.58 3546 11.08 3605 11.60 3664 12.13 3779 13.20 3894 14.33 4600 2930 3414 10.04 3473 10.55 3531 11.06 3589 11.58 3646 12.10 3703 12.63 3815 13.71 3926 14.83 4800 3057 3466 10.54 3522 11.04 3579 11.57 3635 12.09 3690 12.62 3746 13.17 3855 14.27 3962 15.39 5000 3185 3520 11.06 3575 11.58 3630 12.11 3684 12.64 3737 13.17 3791 13.72 3898 14.85 5200 3312 3576 11.61 3630 12.14 3683 12.67 3736 13.22 3788 13.76 3840 14.32 3943 15.45 5400 3439 3634 12.18 3687 12.73 3739 13.27 3790 13.82 3841 14.38 3891 14.94 3991 16.08 5600 3567 3692 12.77 3744 13.33 3796 13.90 3846 14.46 3896 15.03 3945 15.59 5800 3694 3750 13.36 3802 13.94 3854 14.54 3904 15.12 3953 15.70 6000 3822 3808 13.96 3861 14.58 3912 15.19 3961 15.79 6200 3949 3867 14.59 3919 15.22 3970 15.85 6400 4076 3926 15.22 3977 15.87 6600 4204 3987 15.89 *Maximum operating speed is limited to 4000 RPM. RPM listed above 4000 is for derating due to elevated temperatures. Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. WWW.TCF.COM 15

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 2931 3977 NA NA 182 BCS Outlet Area: 1.92 ft 2 Wheel Diameter.: 18.25" Tip Speed (FPM): 4.78 x RPM 0.5" SP 1" SP 1.5" SP 2" SP 2.5" SP 3" SP 3.5" SP 4" SP 4.5" SP 1200 625 696 0.14 1450 755 744 0.17 948 0.34 1700 885 798 0.21 984 0.39 1152 0.60 1950 1016 855 0.26 1030 0.46 1184 0.68 1329 0.93 1474 1.24 2200 1146 919 0.31 1083 0.53 1225 0.76 1359 1.02 1488 1.30 1616 1.64 2450 1276 990 0.38 1138 0.61 1274 0.86 1398 1.13 1518 1.42 1633 1.73 1748 2.09 1863 2.51 2700 1406 1063 0.46 1195 0.70 1328 0.98 1445 1.26 1556 1.55 1664 1.87 1769 2.21 1873 2.59 1978 3.02 2950 1536 1138 0.56 1257 0.80 1382 1.10 1497 1.40 1601 1.71 1703 2.04 1802 2.38 1899 2.75 1994 3.14 3200 1667 1213 0.66 1324 0.93 1438 1.23 1550 1.55 1652 1.88 1748 2.22 1842 2.58 1933 2.95 2022 3.34 3450 1797 1290 0.79 1395 1.07 1497 1.37 1605 1.72 1705 2.07 1798 2.43 1886 2.79 1973 3.18 2058 3.57 3700 1927 1367 0.92 1468 1.23 1561 1.53 1661 1.89 1759 2.27 1850 2.65 1936 3.03 2018 3.42 2099 3.83 3950 2057 1446 1.08 1542 1.40 1630 1.73 1720 2.08 1814 2.48 1904 2.88 1988 3.29 2068 3.70 2145 4.11 4200 2188 1525 1.25 1617 1.60 1700 1.94 1783 2.30 1871 2.70 1959 3.13 2042 3.56 2120 3.99 2195 4.42 4450 2318 1604 1.44 1692 1.81 1773 2.17 1850 2.54 1931 2.94 2014 3.38 2096 3.84 2174 4.30 2247 4.75 4700 2448 1684 1.65 1769 2.04 1846 2.42 1920 2.81 1994 3.21 2072 3.66 2151 4.13 2228 4.61 2301 5.10 4950 2578 1764 1.88 1846 2.30 1921 2.70 1992 3.10 2061 3.51 2133 3.96 2208 4.44 2282 4.94 2355 5.45 5" SP 5.5" SP 6" SP 6.5" SP 7" SP 7.5" SP 8" SP 8.5" SP 9" SP 3450 1797 2142 3.99 2224 4.42 2305 4.87 2386 5.36 2468 5.90 2550 6.47 2630 7.06 3700 1927 2179 4.25 2257 4.69 2334 5.14 2411 5.61 2486 6.11 2562 6.64 2638 7.21 2714 7.82 2789 8.45 3950 2057 2221 4.55 2296 4.99 2370 5.45 2442 5.92 2514 6.41 2585 6.91 2656 7.45 2727 8.02 2798 8.62 4200 2188 2267 4.86 2339 5.32 2410 5.79 2480 6.27 2549 6.77 2616 7.26 2684 7.79 2751 8.34 2817 8.90 4450 2318 2317 5.20 2386 5.67 2454 6.15 2521 6.65 2587 7.15 2653 7.67 2717 8.18 2781 8.72 2845 9.28 4700 2448 2370 5.57 2436 6.05 2502 6.55 2566 7.05 2630 7.56 2693 8.09 2755 8.62 2817 9.17 2878 9.73 4950 2578 2423 5.95 2489 6.46 2553 6.97 2615 7.48 2676 8.00 2736 8.53 2797 9.09 2857 9.65 2916 10.22 5200 2708 2477 6.35 2543 6.88 2605 7.41 2666 7.94 2725 8.47 2784 9.02 2842 9.58 2899 10.14 2956 10.72 5450 2839 2532 6.76 2597 7.32 2659 7.87 2719 8.43 2777 8.98 2834 9.54 2890 10.11 2945 10.68 3000 11.27 5700 2969 2587 7.18 2651 7.76 2713 8.35 2773 8.93 2830 9.50 2886 10.08 2941 10.67 2995 11.26 3048 11.86 5950 3099 2644 7.63 2706 8.23 2767 8.83 2827 9.45 2884 10.05 2940 10.66 2993 11.25 3046 11.86 3098 12.47 6200 3229 2703 8.11 2763 8.72 2822 9.34 2881 9.97 2938 10.60 2993 11.23 3047 11.87 3099 12.50 3150 13.13 6450 3359 2765 8.62 2822 9.24 2879 9.87 2936 10.52 2992 11.17 3047 11.83 3101 12.50 3152 13.14 3203 13.80 6700 3490 2830 9.19 2883 9.80 2937 10.43 2992 11.09 3047 11.76 3101 12.44 3155 13.13 3206 13.81 3257 14.50 6950 3620 2896 9.78 2947 10.40 2998 11.03 3051 11.70 3103 12.37 3156 13.07 3209 13.78 3260 14.49 3310 15.20 7200 3750 2965 10.43 3013 11.04 3061 11.67 3111 12.34 3162 13.03 3213 13.74 3264 14.46 3314 15.18 3364 15.92 9.5" SP 10" SP 11" SP 12" SP 13" SP 14" SP 15" SP 16" SP 17" SP 5700 2969 3100 12.45 3153 13.08 3257 14.35 3359 15.64 3460 16.98 3559 18.34 3657 19.76 3755 21.26 3852 22.82 5950 3099 3149 13.09 3200 13.72 3300 15.00 3399 16.32 3497 17.67 3594 19.06 3689 20.48 3783 21.94 3877 23.48 6200 3229 3200 13.76 3249 14.39 3346 15.69 3442 17.03 3538 18.42 3631 19.81 3724 21.25 3815 22.71 3906 24.23 6450 3359 3252 14.45 3300 15.10 3395 16.43 3488 17.78 3580 19.17 3672 20.62 3762 22.07 3851 23.55 3939 25.06 6700 3490 3305 15.17 3353 15.85 3446 17.21 3537 18.59 3626 19.99 3715 21.44 3803 22.93 3890 24.44 3975 25.96 6950 3620 3359 15.91 3406 16.60 3498 18.01 3587 19.42 3675 20.86 3760 22.30 3846 23.81 3930 25.34 7200 3750 3413 16.66 3460 17.39 3552 18.85 3639 20.29 3725 21.76 3809 23.24 3891 24.74 3974 26.30 7450 3880 3467 17.43 3514 18.18 3605 19.69 3692 21.19 3777 22.70 3859 24.21 3940 25.74 7700 4010 3521 18.21 3568 18.99 3659 20.56 3746 22.12 3829 23.65 3910 25.20 7950 4141 3577 19.03 3622 19.82 3713 21.44 3800 23.06 3883 24.66 3963 26.25 8200 4271 3634 19.88 3678 20.69 3767 22.34 3853 24.00 3936 25.66 8450 4401 3692 20.77 3735 21.59 3822 23.27 3907 24.97 8700 4531 3753 21.72 3794 22.54 3878 24.24 3961 25.96 8950 4661 3815 22.71 3855 23.54 3936 25.25 9200 4792 3879 23.76 3917 24.59 9450 4922 3945 24.88 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. 16 TWIN CITY FAN - CATALO 400

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 2674 3629 NA NA 200 BCS Outlet Area: 2.30 ft 2 Wheel Diameter.: 20.00" Tip Speed (FPM): 5.24 x RPM 0.5" SP 1" SP 1.5" SP 2" SP 2.5" SP 3" SP 3.5" SP 4" SP 4.5" SP 1500 652 642 0.17 851 0.38 1800 783 688 0.21 870 0.42 1042 0.69 2100 913 738 0.26 905 0.48 1056 0.74 1203 1.07 2400 1043 791 0.32 949 0.56 1087 0.83 1217 1.13 1346 1.50 2700 1174 851 0.39 998 0.66 1126 0.94 1246 1.25 1362 1.59 1476 1.99 3000 1304 916 0.48 1048 0.75 1172 1.06 1284 1.39 1391 1.73 1495 2.11 1598 2.54 1701 3.03 3300 1435 983 0.58 1100 0.86 1221 1.20 1327 1.54 1428 1.90 1525 2.28 1620 2.69 1713 3.14 1807 3.65 3600 1565 1051 0.69 1158 0.99 1270 1.34 1375 1.72 1470 2.09 1562 2.49 1651 2.90 1738 3.34 1824 3.82 3900 1696 1120 0.82 1220 1.14 1322 1.50 1424 1.90 1517 2.31 1603 2.71 1688 3.14 1770 3.59 1851 4.06 4200 1826 1190 0.97 1285 1.32 1377 1.68 1474 2.10 1565 2.53 1649 2.96 1729 3.40 1808 3.87 1885 4.35 4500 1957 1261 1.14 1352 1.51 1436 1.88 1525 2.31 1615 2.77 1698 3.23 1775 3.69 1850 4.17 1923 4.66 4800 2087 1333 1.33 1420 1.73 1499 2.12 1580 2.55 1665 3.02 1747 3.52 1823 4.01 1895 4.50 1965 5.00 5100 2217 1405 1.54 1488 1.96 1564 2.38 1638 2.81 1717 3.29 1797 3.81 1873 4.34 1944 4.86 2011 5.38 5400 2348 1477 1.77 1557 2.22 1630 2.66 1700 3.11 1772 3.59 1847 4.12 1922 4.67 1993 5.23 2059 5.78 5700 2478 1550 2.03 1627 2.51 1697 2.97 1764 3.44 1831 3.92 1901 4.46 1972 5.02 2042 5.61 2108 6.19 6000 2609 1623 2.31 1697 2.82 1766 3.31 1829 3.79 1892 4.29 1957 4.82 2024 5.40 2092 6.01 2158 6.63 5" SP 5.5" SP 6" SP 6.5" SP 7" SP 7.5" SP 8" SP 8.5" SP 9" SP 4200 1826 1960 4.84 2035 5.36 2108 5.91 2181 6.49 2254 7.12 2328 7.80 2401 8.52 4500 1957 1995 5.17 2066 5.70 2136 6.24 2205 6.81 2273 7.40 2341 8.03 2409 8.70 2478 9.43 2546 10.18 4800 2087 2034 5.53 2102 6.07 2169 6.62 2235 7.19 2300 7.77 2364 8.38 2428 9.02 2492 9.70 2556 10.41 5100 2217 2077 5.91 2142 6.46 2206 7.03 2270 7.62 2332 8.21 2393 8.81 2454 9.44 2515 10.09 2575 10.77 5400 2348 2123 6.33 2186 6.90 2247 7.47 2308 8.07 2368 8.68 2427 9.29 2486 9.93 2544 10.58 2601 11.24 5700 2478 2171 6.77 2232 7.36 2291 7.95 2349 8.55 2407 9.17 2464 9.81 2521 10.46 2577 11.12 2632 11.78 6000 2609 2220 7.23 2280 7.85 2338 8.46 2394 9.08 2450 9.71 2505 10.36 2559 11.01 2613 11.69 2667 12.38 6300 2739 2270 7.72 2329 8.36 2386 9.00 2442 9.65 2495 10.28 2548 10.94 2601 11.62 2653 12.30 2705 13.00 6600 2870 2319 8.20 2379 8.89 2435 9.55 2490 10.23 2543 10.90 2595 11.58 2645 12.25 2696 12.96 2745 13.65 6900 3000 2370 8.72 2428 9.42 2485 10.13 2539 10.83 2592 11.54 2642 12.23 2692 12.94 2741 13.65 2789 14.36 7200 3130 2422 9.26 2478 9.98 2534 10.71 2588 11.45 2641 12.19 2691 12.92 2740 13.65 2788 14.38 2835 15.11 7500 3261 2477 9.85 2530 10.57 2584 11.32 2638 12.09 2690 12.86 2740 13.62 2789 14.39 2836 15.14 2883 15.91 7800 3391 2534 10.48 2585 11.21 2636 11.97 2688 12.75 2739 13.54 2789 14.33 2838 15.13 2885 15.92 2931 16.72 8100 3522 2593 11.16 2641 11.89 2690 12.65 2740 13.45 2789 14.25 2839 15.08 2887 15.90 2935 16.74 2980 17.55 8400 3652 2654 11.88 2699 12.61 2746 13.39 2793 14.18 2841 15.00 2889 15.84 2937 16.70 2984 17.56 3029 18.40 8700 3783 2717 12.67 2760 13.40 2804 14.17 2849 14.97 2895 15.80 2941 16.64 2987 17.51 3033 18.39 3078 19.27 9.5" SP 10" SP 11" SP 12" SP 13" SP 14" SP 15" SP 16" SP 17" SP 6600 2870 2795 14.38 2844 15.11 2942 16.62 3037 18.15 3131 19.73 3224 21.38 3317 23.12 3409 24.95 3502 26.92 6900 3000 2837 15.10 2884 15.83 2979 17.37 3072 18.94 3163 20.53 3253 22.18 3342 23.88 3431 25.68 3519 27.54 7200 3130 2882 15.87 2928 16.62 3018 18.15 3109 19.76 3198 21.39 3285 23.04 3372 24.76 3457 26.51 3542 28.34 7500 3261 2928 16.66 2973 17.44 3061 19.00 3148 20.61 3235 22.28 3320 23.97 3404 25.69 3487 27.45 3569 29.26 7800 3391 2976 17.51 3020 18.30 3106 19.89 3191 21.53 3274 23.20 3357 24.92 3439 26.68 3520 28.47 3600 30.29 8100 3522 3025 18.38 3068 19.19 3153 20.83 3235 22.49 3316 24.18 3397 25.93 3477 27.72 3556 29.54 8400 3652 3074 19.27 3117 20.11 3201 21.81 3282 23.51 3361 25.23 3439 26.99 3516 28.78 3593 30.63 8700 3783 3123 20.17 3166 21.05 3249 22.80 3329 24.55 3407 26.32 3483 28.10 3559 29.93 9000 3913 3172 21.09 3215 22.00 3298 23.83 3378 25.65 3455 27.47 3529 29.27 3603 31.13 9300 4043 3222 22.04 3264 22.97 3347 24.87 3427 26.76 3503 28.63 3577 30.50 9600 4174 3273 23.03 3314 23.98 3396 25.92 3476 27.89 3551 29.81 3625 31.75 9900 4304 3325 24.06 3365 25.02 3446 27.02 3524 29.02 3600 31.02 10200 4435 3379 25.15 3418 26.13 3496 28.14 3574 30.21 10500 4565 3434 26.28 3472 27.28 3547 29.30 3623 31.39 10800 4696 3491 27.49 3527 28.48 3600 30.52 11100 4826 3550 28.77 3585 29.77 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. WWW.TCF.COM 17

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 2404 3262 3777 NA 222 BCS Outlet Area: 2.85 ft 2 Wheel Diameter.: 22.25" Tip Speed (FPM): 5.83 x RPM 1" SP 2" SP 3" SP 4" SP 5" SP 6" SP 7" SP 8" SP 9" SP 1800 632 731 0.43 2200 772 753 0.51 2600 912 783 0.59 1036 1.24 3000 1053 822 0.69 1057 1.38 3400 1193 867 0.81 1084 1.55 1278 2.38 3800 1333 917 0.95 1118 1.73 1302 2.62 1469 3.58 4200 1474 970 1.10 1158 1.94 1330 2.87 1491 3.88 1640 4.96 4600 1614 1025 1.28 1202 2.16 1364 3.14 1517 4.20 1660 5.32 1796 6.52 5000 1754 1082 1.47 1249 2.41 1402 3.43 1547 4.54 1685 5.71 1816 6.95 1940 8.24 5400 1895 1140 1.69 1299 2.69 1445 3.76 1582 4.91 1714 6.13 1840 7.41 1961 8.75 2076 10.14 2186 11.58 5800 2035 1200 1.94 1352 3.00 1490 4.12 1621 5.31 1746 6.57 1868 7.91 1984 9.28 2097 10.72 2204 12.20 6200 2175 1261 2.21 1406 3.33 1538 4.50 1664 5.75 1783 7.05 1899 8.43 2012 9.86 2120 11.32 2225 12.85 6600 2316 1324 2.51 1462 3.70 1589 4.93 1708 6.21 1823 7.57 1934 8.99 2042 10.46 2147 11.98 2250 13.56 7000 2456 1388 2.85 1518 4.08 1641 5.38 1756 6.72 1866 8.12 1973 9.59 2076 11.10 2178 12.68 2277 14.30 7400 2596 1453 3.23 1576 4.51 1695 5.88 1805 7.26 1911 8.70 2014 10.22 2114 11.78 2211 13.40 2307 15.07 7800 2737 1518 3.64 1635 4.97 1750 6.40 1856 7.84 1959 9.34 2058 10.89 2154 12.50 2248 14.16 2340 15.88 10" SP 11" SP 12" SP 13" SP 14" SP 15" SP 16" SP 17" SP 18" SP 5800 2035 2308 13.74 6200 2175 2327 14.44 2425 16.06 2520 17.72 6600 2316 2349 15.18 2444 16.83 2537 18.54 2628 20.30 7000 2456 2373 15.95 2467 17.66 2558 19.42 2646 21.20 2733 23.04 2817 24.90 7400 2596 2400 16.77 2491 18.50 2580 20.29 2667 22.14 2752 24.02 2834 25.92 2915 27.87 2994 29.84 7800 2737 2430 17.62 2519 19.42 2606 21.26 2690 23.11 2773 25.03 2854 26.99 2934 29.00 3011 31.00 3087 33.05 8200 2877 2463 18.52 2549 20.37 2633 22.23 2716 24.15 2797 26.10 2877 28.11 2954 30.12 3031 32.22 3105 34.30 8600 3018 2499 19.46 2582 21.35 2664 23.29 2744 25.23 2823 27.22 2901 29.26 2978 31.35 3052 33.44 3126 35.61 9000 3158 2538 20.46 2618 22.39 2697 24.36 2775 26.37 2852 28.41 2928 30.49 3003 32.61 3076 34.74 3148 36.92 9400 3298 2578 21.49 2656 23.46 2733 25.49 2809 27.56 2883 29.63 2957 31.75 3030 33.91 3102 36.10 3172 38.30 9800 3439 2621 22.59 2697 24.62 2771 26.66 2845 28.78 2917 30.90 2989 33.08 3060 35.29 3130 37.52 3199 39.77 10200 3579 2665 23.72 2739 25.80 2811 27.89 2883 30.05 2953 32.22 3023 34.45 3092 36.70 3160 38.97 3227 41.26 10600 3719 2711 24.93 2783 27.05 2853 29.18 2923 31.38 2991 33.58 3059 35.85 3126 38.15 3192 40.46 3258 42.83 11000 3860 2758 26.18 2828 28.34 2897 30.54 2964 32.74 3031 35.02 3097 37.32 3163 39.68 3227 42.03 3291 44.44 11400 4000 2806 27.49 2874 29.68 2941 31.91 3008 34.22 3073 36.52 3137 38.85 3201 41.25 3264 43.66 3326 46.09 11800 4140 2856 28.87 2922 31.10 2988 33.40 3052 35.70 3116 38.07 3179 40.46 3241 42.88 3303 45.36 3363 47.82 19" SP 20" SP 21" SP 22" SP 23" SP 24" SP 25" SP 26" SP 27" SP 9000 3158 3219 39.15 3288 41.38 3357 43.68 3424 45.97 3491 48.34 3556 50.68 3621 53.10 9400 3298 3242 40.57 3310 42.84 3378 45.20 3444 47.54 3509 49.91 3574 52.35 3637 54.76 3700 57.24 3762 59.74 9800 3439 3267 42.06 3334 44.38 3400 46.73 3466 49.15 3530 51.57 3593 54.01 3656 56.52 3717 58.99 10200 3579 3294 43.61 3360 45.98 3425 48.38 3489 50.80 3552 53.25 3615 55.77 3676 58.28 3737 60.84 10600 3719 3323 45.21 3388 47.64 3451 50.05 3514 52.52 3576 55.01 3638 57.57 3698 60.10 3758 62.70 11000 3860 3354 46.85 3417 49.31 3480 51.83 3541 54.31 3602 56.85 3662 59.40 3722 62.02 11400 4000 3388 48.58 3449 51.08 3510 53.62 3570 56.16 3630 58.76 3689 61.36 3747 63.97 11800 4140 3424 50.37 3483 52.89 3542 55.46 3601 58.07 3660 60.73 3717 63.34 3775 66.05 12200 4281 3461 52.19 3519 54.77 3577 57.40 3634 60.03 3691 62.71 3748 65.43 12600 4421 3500 54.08 3557 56.72 3613 59.36 3669 62.06 3725 64.80 13000 4561 3541 56.07 3596 58.72 3651 61.41 3706 64.16 3760 66.91 13400 4702 3582 58.07 3637 60.81 3691 63.56 3744 66.31 13800 4842 3625 60.17 3679 62.97 3732 65.76 14200 4982 3670 62.39 3722 65.18 3774 68.03 14600 5123 3715 64.63 3766 67.46 15000 5263 3761 66.94 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. 18 TWIN CITY FAN - CATALO 400

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 2183 2963 3560 NA 245 BCS Outlet Area: 3.45 ft 2 Wheel Diameter.: 24.50" Tip Speed (FPM): 6.41 x RPM 2" SP 3" SP 4" SP 5" SP 6" SP 7" SP 8" SP 9" SP 10" SP 3500 1014 954 1.63 4000 1159 978 1.83 1156 2.82 4500 1304 1008 2.05 1177 3.10 1331 4.27 5000 1449 1044 2.29 1203 3.42 1350 4.63 1486 5.93 5500 1594 1085 2.58 1233 3.75 1373 5.02 1505 6.38 1628 7.82 6000 1739 1129 2.89 1269 4.12 1401 5.45 1527 6.86 1647 8.36 1760 9.92 6500 1884 1176 3.23 1308 4.52 1433 5.90 1554 7.39 1669 8.93 1779 10.55 1883 12.22 1984 13.97 7000 2029 1225 3.62 1351 4.97 1470 6.41 1584 7.94 1694 9.54 1801 11.22 1903 12.95 2001 14.76 2095 16.60 7500 2174 1275 4.03 1395 5.44 1509 6.94 1618 8.53 1724 10.21 1826 11.93 1925 13.71 2020 15.56 2112 17.47 8000 2319 1327 4.48 1443 5.98 1551 7.53 1656 9.18 1756 10.89 1854 12.67 1950 14.53 2043 16.43 2133 18.40 8500 2464 1380 4.97 1492 6.55 1596 8.17 1696 9.87 1793 11.65 1887 13.49 1978 15.38 2068 17.34 2156 19.37 9000 2609 1434 5.49 1542 7.16 1642 8.84 1738 10.60 1831 12.43 1922 14.34 2010 16.30 2096 18.31 2181 20.38 9500 2754 1490 6.08 1593 7.81 1690 9.57 1783 11.40 1872 13.27 1960 15.25 2045 17.27 2128 19.34 2209 21.45 10000 2899 1546 6.70 1646 8.51 1740 10.37 1829 12.24 1915 14.17 2000 16.21 2082 18.28 2162 20.41 2241 22.60 10500 3043 1603 7.37 1699 9.26 1790 11.19 1877 13.15 1960 15.14 2041 17.20 2121 19.35 2199 21.55 2275 23.79 11000 3188 1662 8.11 1753 10.05 1842 12.07 1926 14.11 2006 16.15 2085 18.29 2162 20.48 2237 22.71 2311 25.02 11" SP 12" SP 13" SP 14" SP 15" SP 16" SP 17" SP 18" SP 19" SP 7500 2174 2202 19.45 2288 21.45 8000 2319 2220 20.42 2304 22.48 2387 24.62 8500 2464 2241 21.44 2323 23.55 2404 25.75 2482 27.96 2559 30.24 9000 2609 2264 22.51 2345 24.69 2423 26.90 2500 29.19 2575 31.51 2648 33.86 2720 36.27 9500 2754 2290 23.65 2368 25.85 2445 28.13 2521 30.49 2594 32.85 2666 35.28 2736 37.72 2805 40.21 2873 42.76 10000 2899 2318 24.82 2395 27.13 2470 29.46 2543 31.81 2615 34.24 2686 36.73 2755 39.25 2822 41.77 2889 44.38 10500 3043 2350 26.09 2424 28.44 2496 30.79 2568 33.24 2638 35.69 2707 38.21 2775 40.78 2842 43.42 2907 46.05 11000 3188 2384 27.39 2455 29.78 2526 32.24 2595 34.71 2664 37.25 2731 39.80 2798 42.43 2863 45.08 2927 47.77 11500 3333 2420 28.75 2489 31.19 2557 33.69 2625 36.26 2691 38.82 2757 41.45 2822 44.12 2886 46.82 2949 49.57 12000 3478 2458 30.17 2525 32.68 2592 35.26 2657 37.85 2722 40.52 2785 43.16 2849 45.91 2911 48.64 2973 51.46 12500 3623 2498 31.68 2563 34.23 2628 36.87 2691 39.50 2754 42.22 2816 44.96 2878 47.76 2938 50.53 2999 53.42 13000 3768 2539 33.23 2603 35.87 2666 38.56 2728 41.28 2789 44.03 2849 46.81 2909 49.67 2968 52.53 3026 55.40 13500 3913 2582 34.89 2644 37.57 2705 40.29 2765 43.05 2825 45.88 2884 48.75 2942 51.63 2999 54.53 3056 57.50 14000 4058 2626 36.61 2687 39.37 2746 42.12 2805 44.96 2863 47.83 2920 50.72 2977 53.68 3033 56.66 3088 59.65 14500 4203 2672 38.45 2730 41.20 2788 44.02 2846 46.94 2902 49.83 2958 52.79 3014 55.83 3068 58.83 3122 61.89 15000 4348 2718 40.32 2775 43.14 2832 46.05 2888 48.98 2943 51.94 2998 54.98 3052 58.04 3105 61.11 3158 64.24 20" SP 21" SP 22" SP 23" SP 24" SP 25" SP 26" SP 27" SP 28" SP 11000 3188 2990 50.51 3052 53.29 3113 56.10 3173 58.94 3232 61.80 3291 64.75 3349 67.71 12000 3478 3034 54.30 3093 57.13 3152 60.04 3210 62.99 3268 66.02 3324 69.01 3380 72.07 3435 75.15 3489 78.24 12500 3623 3058 56.28 3117 59.22 3175 62.18 3232 65.16 3288 68.17 3344 71.27 3399 74.39 3453 77.51 3506 80.64 13000 3768 3085 58.39 3142 61.34 3199 64.36 3255 67.39 3310 70.45 3365 73.58 3419 76.73 3472 79.90 3525 83.14 13500 3913 3113 60.52 3169 63.54 3225 66.63 3280 69.73 3334 72.83 3388 76.00 3441 79.19 3493 82.38 3545 85.65 14000 4058 3144 62.77 3198 65.82 3252 68.92 3306 72.08 3359 75.25 3412 78.47 3464 81.70 3516 85.00 14500 4203 3176 65.03 3229 68.16 3282 71.35 3335 74.59 3387 77.82 3438 81.04 3490 84.40 3540 87.67 15000 4348 3211 67.44 3262 70.58 3314 73.85 3365 77.11 3416 80.42 3466 83.71 3516 87.05 15500 4493 3246 69.85 3297 73.12 3347 76.38 3397 79.71 3447 83.10 3496 86.46 3545 89.87 16000 4638 3284 72.44 3333 75.71 3383 79.10 3431 82.42 3480 85.87 3528 89.30 16500 4783 3323 75.10 3371 78.43 3419 81.81 3467 85.26 3514 88.69 17000 4928 3363 77.85 3410 81.23 3457 84.67 3504 88.17 3550 91.65 17500 5072 3404 80.68 3450 84.11 3496 87.60 3542 91.15 18000 5217 3446 83.61 3491 87.08 3536 90.62 18500 5362 3489 86.64 3533 90.16 19000 5507 3533 89.78 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. WWW.TCF.COM 19

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 1981 2687 3112 3678 270 BCS Outlet Area: 4.19 ft 2 Wheel Diameter.: 27.00" Tip Speed (FPM): 7.07 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 6000 1432 933 2.67 1224 5.52 1466 8.75 1685 12.43 6500 1551 960 2.92 1239 5.88 1476 9.24 1687 12.96 7000 1671 990 3.21 1255 6.26 1488 9.75 1693 13.55 1883 17.73 7500 1790 1022 3.51 1274 6.67 1502 10.29 1702 14.18 1887 18.42 2061 23.02 8000 1909 1056 3.85 1295 7.09 1518 10.85 1715 14.89 1894 19.18 2063 23.81 2224 28.77 8500 2029 1092 4.22 1319 7.55 1533 11.40 1729 15.61 1904 19.99 2069 24.69 2226 29.71 2376 35.01 9000 2148 1129 4.62 1345 8.04 1551 11.99 1744 16.34 1917 20.87 2078 25.65 2230 30.67 2378 36.09 2519 41.73 9500 2267 1167 5.06 1374 8.59 1571 12.61 1759 17.06 1931 21.77 2089 26.65 2238 31.76 2381 37.15 2520 42.90 10000 2387 1206 5.52 1404 9.16 1594 13.28 1775 17.81 1946 22.68 2102 27.70 2248 32.90 2388 38.37 2523 44.10 10500 2506 1246 6.03 1436 9.77 1618 13.97 1793 18.59 1961 23.59 2116 28.77 2260 34.09 2397 39.63 2529 45.42 11000 2625 1287 6.58 1469 10.42 1645 14.74 1814 19.45 1977 24.52 2131 29.86 2274 35.35 2409 41.01 2538 46.85 11500 2745 1329 7.17 1504 11.12 1673 15.53 1836 20.31 1994 25.48 2146 30.95 2288 36.59 2422 42.41 2549 48.36 12000 2864 1371 7.80 1540 11.87 1702 16.35 1861 21.27 2013 26.48 2162 32.08 2303 37.87 2436 43.84 2561 49.88 12500 2983 1414 8.48 1577 12.66 1733 17.24 1886 22.22 2035 27.58 2179 33.23 2318 39.14 2450 45.24 2575 51.50 13000 3103 1457 9.20 1614 13.48 1766 18.19 1913 23.24 2058 28.69 2197 34.39 2334 40.45 2465 46.70 2589 53.09 13500 3222 1500 9.95 1653 14.38 1799 19.16 1942 24.34 2082 29.85 2218 35.67 2351 41.79 2480 48.15 2604 54.73 20" SP 22" SP 23" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 12500 2983 2694 57.86 2809 64.41 2865 67.74 2920 71.10 2975 74.55 3029 78.03 3083 81.62 3136 85.22 3189 88.93 13000 3103 2707 59.60 2820 66.22 2875 69.59 2930 73.05 2984 76.54 3037 80.05 3089 83.58 3141 87.19 3193 90.91 13500 3222 2721 61.38 2833 68.14 2888 71.61 2941 75.03 2994 78.55 3046 82.09 3098 85.72 3149 89.36 3200 93.10 14000 3341 2735 63.14 2847 70.11 2901 73.61 2954 77.13 3006 80.68 3058 84.32 3109 87.98 3159 91.64 3208 95.31 14500 3461 2750 64.95 2861 72.05 2915 75.65 2967 79.20 3019 82.85 3070 86.52 3120 90.19 3170 93.96 3219 97.74 15000 3580 2765 66.77 2876 74.04 2929 77.67 2981 81.32 3033 85.08 3083 88.76 3133 92.54 3182 96.33 3230 100.12 15500 3699 2781 68.64 2890 75.96 2944 79.76 2996 83.50 3047 87.28 3097 91.07 3147 94.95 3195 98.75 3243 102.64 16000 3819 2797 70.49 2906 78.03 2958 81.76 3010 85.60 3062 89.55 3112 93.44 3161 97.34 3209 101.24 3256 105.14 16500 3938 2815 72.45 2922 80.08 2974 83.92 3025 87.77 3076 91.73 3126 95.70 3175 99.69 3223 103.70 3270 107.70 17000 4057 2834 74.45 2939 82.18 2990 86.05 3041 90.02 3091 93.99 3141 98.06 3190 102.15 3238 106.24 3285 110.34 17500 4177 2855 76.56 2957 84.32 3007 88.24 3057 92.23 3107 96.32 3156 100.41 3205 104.59 3252 108.68 3299 112.86 18000 4296 2877 78.72 2976 86.51 3026 90.56 3075 94.60 3124 98.71 3172 102.82 3220 107.02 3267 111.21 3314 115.49 18500 4415 2900 80.96 2997 88.82 3046 92.92 3094 97.01 3141 101.07 3189 105.30 3236 109.52 3283 113.82 3329 118.11 19000 4535 2924 83.27 3020 91.28 3067 95.33 3114 99.46 3160 103.57 3207 107.84 3253 112.08 3299 116.40 3345 120.80 19500 4654 2949 85.65 3043 93.74 3089 97.81 3135 101.97 3181 106.22 3226 110.42 3272 114.80 3317 119.15 3362 123.57 20000 4773 2975 88.12 3067 96.28 3112 100.38 3158 104.66 3202 108.82 3247 113.17 3291 117.48 3336 121.96 3380 126.40 30" SP 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 16000 3819 3303 109.13 3350 113.21 3395 117.17 3440 121.22 3485 125.35 3529 129.46 3573 133.65 3616 137.80 3659 142.04 16500 3938 3317 111.79 3363 115.88 3408 119.94 3453 124.10 3497 128.23 3541 132.44 3584 136.62 3627 140.88 3669 145.10 17000 4057 3331 114.43 3377 118.62 3422 122.79 3466 126.94 3510 131.17 3553 135.38 3596 139.66 3638 143.91 17500 4177 3345 117.05 3391 121.33 3436 125.61 3480 129.86 3523 134.08 3566 138.39 3609 142.78 3651 147.13 18000 4296 3360 119.77 3405 124.04 3450 128.40 3494 132.75 3537 137.08 3580 141.49 3622 145.86 3664 150.32 18500 4415 3375 122.49 3420 126.85 3464 131.19 3508 135.63 3552 140.16 3594 144.56 3636 149.03 3678 153.59 19000 4535 3390 125.18 3435 129.65 3479 134.09 3523 138.62 3566 143.13 3608 147.60 3650 152.18 19500 4654 3406 127.96 3451 132.54 3494 136.97 3538 141.61 3580 146.09 3623 150.78 3665 155.44 20000 4773 3423 130.80 3467 135.39 3510 139.94 3553 144.57 3595 149.15 3638 153.95 20500 4893 3442 133.84 3484 138.32 3527 142.99 3569 147.62 3611 152.32 3653 157.10 21000 5012 3461 136.82 3503 141.44 3545 146.12 3586 150.75 3628 155.57 3669 160.34 21500 5131 3481 139.86 3522 144.50 3563 149.20 3604 153.96 3645 158.78 22000 5251 3503 143.10 3543 147.76 3583 152.47 3623 157.24 3663 162.07 22500 5370 3525 146.33 3565 151.10 3604 155.81 3643 160.59 23000 5489 3549 149.80 3588 154.56 3626 159.26 3665 164.16 23500 5609 3573 153.26 3611 158.01 3649 162.83 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. 20 TWIN CITY FAN - CATALO 400

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 1783 2420 2801 3310 300 BCS Outlet Area: 5.17 ft 2 Wheel Diameter.: 30.00" Tip Speed (FPM): 7.85 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 7500 1451 843 3.34 1104 6.89 1320 10.88 1517 15.45 8000 1547 863 3.60 1115 7.26 1328 11.39 1518 15.97 8500 1644 884 3.87 1126 7.62 1337 11.91 1522 16.55 1695 21.72 9000 1741 907 4.17 1139 8.01 1347 12.44 1528 17.17 1696 22.36 1855 28.03 9500 1838 931 4.49 1153 8.42 1357 12.96 1536 17.84 1700 23.08 1855 28.78 10000 1934 957 4.85 1170 8.87 1369 13.54 1546 18.56 1706 23.87 1858 29.62 2002 35.76 10500 2031 983 5.22 1188 9.34 1380 14.08 1556 19.27 1714 24.70 1862 30.49 2004 36.72 2139 43.28 11000 2128 1010 5.62 1207 9.84 1393 14.67 1567 20.00 1723 25.57 1868 31.42 2006 37.63 2140 44.33 2267 51.25 11500 2224 1037 6.03 1227 10.36 1407 15.28 1578 20.73 1733 26.45 1876 32.43 2011 38.69 2142 45.40 2267 52.39 12000 2321 1065 6.48 1248 10.90 1423 15.93 1589 21.46 1744 27.38 1885 33.46 2018 39.83 2146 46.56 2269 53.61 12500 2418 1094 6.97 1271 11.50 1440 16.61 1602 22.25 1755 28.29 1895 34.53 2026 41.00 2151 47.75 2272 54.85 13000 2515 1124 7.49 1294 12.11 1458 17.32 1615 23.03 1766 29.20 1905 35.58 2035 42.20 2158 49.04 2277 56.21 13500 2611 1154 8.04 1319 12.78 1477 18.06 1630 23.87 1777 30.11 1916 36.68 2045 43.45 2167 50.43 2283 57.60 14000 2708 1184 8.62 1344 13.46 1497 18.84 1646 24.73 1790 31.10 1927 37.78 2055 44.68 2176 51.80 2291 59.12 14500 2805 1214 9.22 1370 14.20 1518 19.65 1663 25.64 1803 32.07 1938 38.87 2066 45.96 2186 53.23 2299 60.60 15000 2901 1245 9.87 1396 14.94 1540 20.51 1681 26.58 1818 33.12 1950 40.01 2077 47.24 2196 54.63 2309 62.21 20" SP 22" SP 23" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 16000 3095 2435 73.38 2487 77.50 2537 81.56 2587 85.75 2636 89.97 2732 98.55 2780 103.03 2827 107.51 2873 111.99 17000 3288 2456 76.98 2507 81.22 2556 85.39 2605 89.69 2653 94.01 2747 102.81 2793 107.28 2839 111.86 2884 116.43 18000 3482 2477 80.53 2528 84.96 2577 89.34 2625 93.74 2673 98.28 2765 107.27 2810 111.83 2855 116.51 2899 121.18 19000 3675 2499 84.16 2549 88.68 2598 93.24 2646 97.83 2693 102.45 2785 111.86 2829 116.51 2873 121.27 2916 126.02 20000 3868 2524 88.02 2573 92.67 2621 97.33 2668 102.01 2715 106.82 2806 116.49 2850 121.34 2893 126.19 2936 131.14 21000 4062 2551 91.97 2598 96.66 2645 101.46 2691 106.26 2737 111.16 2827 121.10 2871 126.13 2914 131.16 2957 136.31 22000 4255 2582 96.21 2627 100.97 2672 105.81 2717 110.74 2762 115.78 2850 125.93 2893 131.03 2936 136.25 2978 141.45 23000 4449 2615 100.62 2659 105.49 2703 110.49 2746 115.46 2789 120.52 2874 130.78 2917 136.12 2958 141.29 3000 146.70 24000 4642 2651 105.34 2694 110.35 2736 115.33 2778 120.42 2819 125.49 2902 136.04 2943 141.37 2983 146.64 3024 152.15 25000 4836 2689 110.29 2730 115.30 2771 120.41 2812 125.61 2852 130.78 2932 141.42 2971 146.74 3011 152.29 3050 157.77 26000 5029 2729 115.47 2769 120.62 2809 125.85 2848 131.04 2887 136.32 2965 147.15 3003 152.57 3041 158.08 3079 163.68 27000 5222 2771 120.91 2810 126.19 2848 131.42 2886 136.73 2924 142.12 3000 153.16 3037 158.66 3074 164.25 3111 169.93 28000 5416 2816 126.76 2853 132.04 2890 137.40 2926 142.68 2963 148.19 3036 159.29 3073 165.03 3109 170.71 3145 176.47 29000 5609 2862 132.80 2897 138.06 2933 143.54 2969 149.09 3004 154.56 3075 165.87 3110 171.55 3145 177.31 3180 183.15 30000 5803 2909 139.07 2944 144.57 2978 150.00 3013 155.66 3047 161.24 3115 172.60 3150 178.55 3184 184.40 3218 190.33 30500 5899 2934 142.45 2968 147.93 3001 153.34 3035 158.97 3069 164.67 3136 176.13 3170 182.05 3203 187.85 3237 193.91 30" SP 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 16000 3095 2919 116.60 2965 121.33 3010 126.06 3055 130.90 3100 135.86 3144 140.79 3187 145.71 3230 150.72 3272 155.70 17000 3288 2928 121.00 2973 125.80 3017 130.58 3060 135.35 3103 140.24 3146 145.23 3189 150.34 3231 155.42 3273 160.61 18000 3482 2942 125.83 2985 130.59 3028 135.46 3070 140.29 3112 145.24 3153 150.14 3195 155.30 3236 160.42 3276 165.49 19000 3675 2959 130.88 3001 135.72 3043 140.67 3084 145.58 3125 150.60 3165 155.57 3205 160.64 3245 165.81 3284 170.93 20000 3868 2978 136.08 3019 140.99 3060 146.00 3101 151.13 3141 156.21 3180 161.24 3219 166.37 3258 171.60 3297 176.93 21000 4062 2998 141.32 3039 146.43 3080 151.65 3120 156.84 3159 161.98 3198 167.22 3237 172.56 3275 177.84 22000 4255 3019 146.63 3060 151.93 3100 157.21 3140 162.60 3179 167.94 3218 173.39 3256 178.78 3293 184.10 23000 4449 3041 152.08 3081 157.42 3121 162.88 3161 168.45 3200 173.98 3238 179.46 3276 185.06 24000 4642 3064 157.61 3104 163.17 3143 168.68 3182 174.29 3221 180.00 3259 185.66 3297 191.44 25000 4836 3089 163.33 3128 168.97 3167 174.71 3205 180.38 3243 186.15 3281 192.01 26000 5029 3117 169.36 3155 175.11 3192 180.78 3229 186.53 3267 192.53 3304 198.46 27000 5222 3147 175.54 3184 181.41 3220 187.19 3256 193.03 3292 198.94 28000 5416 3180 182.15 3216 188.09 3251 193.94 3286 199.89 28500 5513 3197 185.53 3232 191.41 3267 197.38 3302 203.44 29000 5609 3215 189.07 3249 194.90 3284 200.99 29500 5706 3233 192.62 3267 198.57 3301 204.60 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. WWW.TCF.COM 21

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 1621 2199 2546 3009 330 BCS Outlet Area: 6.26 ft 2 Wheel Diameter.: 33.00" Tip Speed (FPM): 8.64 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 8000 1278 731 3.48 979 7.45 1187 12.11 9000 1438 757 3.93 993 8.10 1190 12.94 10000 1597 787 4.41 1008 8.79 1200 13.83 1371 19.45 11000 1757 821 4.97 1027 9.60 1214 14.81 1379 20.64 1531 26.90 12000 1917 859 5.62 1050 10.44 1230 15.88 1391 21.87 1537 28.32 1676 35.26 1808 42.56 13000 2077 899 6.35 1077 11.34 1247 17.02 1405 23.16 1548 29.84 1682 36.99 1809 44.45 1931 52.28 14000 2236 939 7.13 1107 12.31 1267 18.22 1421 24.60 1562 31.46 1692 38.77 1815 46.47 1933 54.49 2047 62.85 15000 2396 981 8.02 1141 13.42 1292 19.52 1438 26.13 1577 33.16 1705 40.66 1824 48.49 1939 56.77 2049 65.29 16000 2556 1023 8.97 1176 14.59 1320 20.91 1458 27.74 1593 34.99 1719 42.60 1837 50.70 1948 59.08 2055 67.83 17000 2716 1066 10.02 1214 15.90 1350 22.37 1482 29.44 1611 36.95 1735 44.76 1851 52.95 1961 61.61 2065 70.51 18000 2875 1110 11.17 1254 17.34 1383 23.98 1509 31.25 1631 38.94 1751 46.97 1867 55.44 1975 64.20 2078 73.36 19000 3035 1155 12.42 1294 18.86 1417 25.67 1538 33.14 1655 41.06 1770 49.37 1882 57.92 1990 66.91 2091 76.16 20000 3195 1201 13.79 1335 20.49 1454 27.54 1569 35.15 1681 43.25 1791 51.79 1900 60.66 2006 69.83 2106 79.19 21000 3355 1248 15.28 1376 22.21 1492 29.53 1602 37.31 1710 45.62 1816 54.39 1920 63.49 2022 72.78 2122 82.46 22000 3514 1295 16.87 1418 24.08 1531 31.63 1637 39.63 1740 48.05 1842 57.01 1942 66.33 2041 75.96 2138 85.78 23000 3674 1343 18.60 1461 26.09 1571 33.88 1673 42.06 1773 50.74 1871 59.85 1967 69.33 2062 79.20 2156 89.27 20" SP 22" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 30" SP 16000 2556 2159 76.89 2260 86.23 2359 95.95 2407 100.86 17000 2716 2166 79.78 2264 89.31 2360 99.15 2407 104.16 2453 109.18 2499 114.34 2544 119.51 18000 2875 2176 82.74 2271 92.42 2364 102.42 2410 107.55 2455 112.68 2500 117.94 2544 123.20 2588 128.58 2632 134.11 19000 3035 2188 85.78 2282 95.77 2372 105.88 2417 111.15 2461 116.41 2504 121.65 2548 127.15 2590 132.49 2633 138.10 20000 3195 2202 89.01 2294 99.11 2383 109.51 2427 114.87 2470 120.23 2512 125.58 2554 131.06 2596 136.66 2637 142.22 21000 3355 2217 92.38 2308 102.66 2396 113.28 2438 118.56 2481 124.13 2522 129.55 2563 135.11 2604 140.80 2644 146.45 22000 3514 2232 95.86 2323 106.36 2410 117.15 2452 122.59 2493 128.05 2534 133.66 2575 139.43 2614 145.01 2654 150.89 23000 3674 2248 99.55 2338 110.19 2424 121.04 2466 126.63 2507 132.24 2548 138.02 2588 143.80 2627 149.57 2666 155.49 24000 3834 2266 103.45 2354 114.24 2440 125.36 2481 130.89 2522 136.62 2562 142.38 2602 148.31 2640 154.07 2679 160.16 25000 3994 2285 107.36 2371 118.41 2455 129.63 2497 135.46 2537 141.14 2577 146.99 2616 152.87 2655 158.93 2693 164.99 26000 4153 2307 111.48 2390 122.74 2472 134.18 2513 140.07 2553 145.92 2592 151.75 2631 157.74 2670 163.90 2708 170.07 27000 4313 2331 115.67 2411 127.18 2491 138.93 2530 144.76 2570 150.86 2609 156.90 2647 162.89 2685 169.02 2723 175.31 28000 4473 2357 120.05 2435 131.85 2511 143.65 2550 149.80 2588 155.85 2626 161.98 2664 168.21 2701 174.36 2738 180.63 29000 4633 2384 124.52 2460 136.54 2534 148.62 2571 154.79 2608 160.99 2645 167.25 2682 173.59 2719 180.01 2755 186.32 30000 4792 2413 129.25 2487 141.48 2559 153.77 2595 160.06 2631 166.43 2666 172.67 2702 179.15 2738 185.69 2773 192.09 31000 4952 2443 134.12 2515 146.53 2585 159.00 2620 165.38 2655 171.85 2690 178.41 2724 184.85 2758 191.33 2793 198.06 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 39" SP 24000 3834 2716 166.04 2754 172.24 2791 178.39 2827 184.49 2863 190.70 2899 197.04 2935 203.49 2970 209.85 3005 216.32 25000 3994 2730 171.02 2767 177.21 2804 183.54 2840 189.82 2875 196.03 2910 202.37 2945 208.83 2980 215.41 26000 4153 2745 176.23 2781 182.36 2817 188.65 2853 195.09 2888 201.47 2923 207.98 2957 214.42 2991 220.98 27000 4313 2760 181.56 2796 187.79 2832 194.20 2867 200.58 2902 207.10 2937 213.78 2971 220.38 3004 226.89 28000 4473 2775 187.04 2811 193.39 2847 199.91 2882 206.37 2917 213.01 2951 219.60 2985 226.34 29000 4633 2791 192.75 2827 199.29 2862 205.74 2897 212.34 2932 219.09 2966 225.76 2999 232.38 30000 4792 2808 198.57 2843 205.14 2878 211.81 2913 218.60 2947 225.28 2981 232.10 31000 4952 2827 204.64 2861 211.28 2896 218.23 2929 224.81 2963 231.71 2996 238.49 32000 5112 2848 210.90 2881 217.66 2914 224.46 2947 231.33 2980 238.27 33000 5272 2871 217.32 2903 224.21 2935 231.13 2967 238.10 2999 245.11 34000 5431 2895 223.76 2926 230.72 2958 237.98 2989 245.07 35000 5591 2921 230.55 2951 237.54 2982 244.85 35500 5671 2934 233.91 2964 241.03 2994 248.23 36000 5751 2947 237.24 2977 244.50 3007 251.84 36500 5831 2961 240.80 2991 248.20 37000 5911 2975 244.35 3005 251.87 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. 22 TWIN CITY FAN - CATALO 400

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 1467 1987 2302 2720 365 BCS Outlet Area: 7.66 ft 2 Wheel Diameter.: 36.50" Tip Speed (FPM): 9.56 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 10000 1305 665 4.36 887 9.24 1073 14.98 11000 1436 684 4.79 897 9.88 1076 15.82 12000 1567 706 5.28 909 10.60 1083 16.71 1239 23.55 13000 1697 731 5.83 922 11.38 1093 17.68 1243 24.67 1383 32.26 14000 1828 757 6.42 937 12.18 1104 18.68 1251 25.89 1386 33.67 1514 41.99 15000 1958 786 7.11 955 13.03 1116 19.79 1261 27.17 1392 35.13 1516 43.66 1634 52.62 16000 2089 815 7.83 976 13.97 1129 20.95 1272 28.51 1401 36.70 1521 45.39 1636 54.59 1746 64.18 17000 2219 845 8.62 998 14.93 1144 22.16 1283 29.90 1411 38.29 1528 47.14 1640 56.56 1747 66.34 1850 76.50 18000 2350 876 9.49 1022 15.99 1161 23.39 1296 31.46 1422 39.97 1538 49.07 1647 58.66 1751 68.63 1852 79.05 19000 2480 907 10.41 1048 17.16 1181 24.75 1309 32.97 1433 41.70 1548 50.98 1655 60.73 1757 70.94 1855 81.51 20000 2611 938 11.40 1075 18.39 1203 26.21 1326 34.70 1446 43.65 1559 53.00 1665 62.95 1765 73.33 1861 84.13 21000 2742 970 12.47 1104 19.76 1225 27.66 1344 36.39 1459 45.57 1571 55.20 1676 65.29 1775 75.90 1869 86.86 22000 2872 1003 13.64 1133 21.18 1250 29.32 1364 38.20 1474 47.57 1583 57.43 1687 67.68 1785 78.43 1878 89.61 23000 3003 1036 14.88 1162 22.65 1275 30.99 1385 40.06 1492 49.73 1597 59.84 1699 70.27 1796 81.12 1888 92.46 24000 3133 1070 16.22 1193 24.30 1302 32.83 1407 41.99 1511 51.91 1612 62.25 1711 72.87 1808 84.04 1899 95.47 25000 3264 1104 17.63 1223 25.96 1329 34.70 1431 44.10 1531 54.15 1629 64.75 1725 75.65 1820 87.01 1910 98.55 20" SP 22" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 30" SP 18000 2350 1949 89.75 19000 2480 1950 92.43 2043 103.83 20000 2611 1954 95.31 2044 106.76 2132 118.60 2176 124.80 2218 130.83 21000 2742 1960 98.25 2048 109.92 2134 121.94 2176 128.03 2218 134.29 2259 140.54 2300 146.96 22000 2872 1967 101.13 2054 113.15 2138 125.36 2179 131.54 2220 137.86 2260 144.17 2300 150.63 2340 157.26 2379 163.85 23000 3003 1976 104.21 2061 116.33 2143 128.70 2184 135.14 2224 141.55 2263 147.92 2303 154.63 2341 161.10 2380 167.93 24000 3133 1986 107.38 2070 119.73 2151 132.36 2190 138.67 2230 145.33 2268 151.77 2307 158.56 2345 165.29 2382 171.95 25000 3264 1997 110.72 2080 123.23 2159 135.88 2198 142.40 2237 149.10 2275 155.77 2313 162.61 2350 169.39 2387 176.32 26000 3394 2008 114.10 2090 126.71 2169 139.70 2208 146.41 2246 153.11 2283 159.80 2320 166.65 2356 173.45 2393 180.63 27000 3525 2019 117.59 2101 130.41 2179 143.49 2218 150.37 2255 157.05 2292 163.92 2329 170.97 2365 177.99 2400 184.94 28000 3655 2031 121.31 2112 134.21 2190 147.51 2228 154.33 2265 161.16 2302 168.20 2338 175.21 2374 182.41 2409 189.56 29000 3786 2044 125.18 2124 138.29 2202 151.84 2239 158.55 2276 165.51 2313 172.69 2348 179.64 2383 186.77 2418 194.10 30000 3916 2058 129.15 2136 142.37 2213 156.06 2250 162.89 2287 169.94 2324 177.24 2359 184.31 2394 191.60 2428 198.84 31000 4047 2073 133.15 2149 146.58 2225 160.52 2262 167.53 2299 174.73 2335 181.91 2370 189.07 2405 196.47 2439 203.85 32000 4178 2089 137.16 2164 151.07 2238 165.15 2274 172.16 2310 179.33 2346 186.67 2381 193.96 2416 201.46 2450 208.93 33000 4308 2107 141.39 2180 155.59 2252 169.89 2287 176.95 2323 184.36 2358 191.68 2393 199.16 2427 206.57 2461 214.16 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 39" SP 29000 3786 2453 201.60 2486 208.79 2520 216.39 2553 223.89 2586 231.54 2618 239.06 2651 247.00 2683 254.79 2714 262.42 30000 3916 2462 206.27 2496 213.88 2529 221.41 2562 229.10 2594 236.69 2626 244.42 2658 252.31 2690 260.33 31000 4047 2473 211.42 2506 218.94 2539 226.63 2571 234.23 2603 242.00 2635 249.93 2666 257.73 2698 265.97 32000 4178 2484 216.63 2517 224.28 2549 231.85 2581 239.60 2613 247.54 2645 255.64 2676 263.63 2706 271.47 33000 4308 2495 221.95 2528 229.69 2560 237.39 2592 245.28 2624 253.36 2655 261.33 2685 269.18 2716 277.49 34000 4439 2506 227.40 2539 235.26 2571 243.04 2603 251.02 2634 258.94 2665 267.04 2696 275.33 35000 4569 2518 233.16 2550 240.91 2582 248.82 2614 256.93 2645 264.93 2676 273.13 2707 281.54 36000 4700 2530 238.88 2562 246.84 2594 254.95 2625 262.92 2656 271.05 2687 279.37 2717 287.56 37000 4830 2543 244.78 2575 253.00 2606 261.05 2637 269.23 2668 277.55 2698 285.71 38000 4961 2557 250.81 2588 259.03 2619 267.36 2649 275.48 2680 284.03 2710 292.39 39000 5091 2573 257.22 2603 265.49 2633 273.81 2663 282.22 2693 290.73 40000 5222 2589 263.40 2618 271.72 2648 280.38 2677 288.80 2706 297.28 41000 5352 2607 269.98 2635 278.31 2664 287.03 2692 295.47 42000 5483 2625 276.45 2653 285.06 2681 293.77 2709 302.56 43000 5614 2644 283.14 2672 292.03 2699 300.68 44000 5744 2664 290.09 2691 298.91 2718 307.84 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. WWW.TCF.COM 23

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 1329 1802 2088 2467 402 BCS Outlet Area: 9.31 ft 2 Wheel Diameter.: 40.25" Tip Speed (FPM): 10.54 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 15000 1611 648 6.65 828 13.19 985 20.71 1124 29.05 16000 1719 666 7.18 838 13.98 993 21.70 1128 30.21 1255 39.55 17000 1826 686 7.79 849 14.77 1001 22.70 1134 31.43 1257 40.93 1373 51.03 18000 1933 707 8.45 863 15.66 1010 23.80 1141 32.67 1261 42.36 1374 52.66 1482 63.56 19000 2041 729 9.18 878 16.57 1019 24.92 1149 33.99 1267 43.88 1377 54.36 1483 65.52 20000 2148 751 9.93 894 17.51 1029 26.08 1158 35.42 1274 45.44 1382 56.15 1485 67.46 1583 79.14 21000 2256 774 10.76 911 18.51 1041 27.32 1167 36.90 1282 47.09 1388 57.95 1489 69.50 1585 81.41 1678 93.86 22000 2363 797 11.64 929 19.58 1055 28.64 1176 38.39 1290 48.74 1395 59.82 1494 71.53 1588 83.67 1679 96.29 23000 2470 820 12.56 948 20.72 1070 30.01 1186 39.94 1299 50.57 1403 61.79 1500 73.61 1593 86.06 1682 98.88 24000 2578 843 13.53 969 22.01 1085 31.35 1198 41.61 1308 52.44 1411 63.78 1508 75.92 1599 88.48 1686 101.46 25000 2685 867 14.59 989 23.25 1102 32.85 1211 43.29 1318 54.41 1420 65.96 1516 78.22 1605 90.82 1691 104.06 26000 2793 891 15.70 1011 24.67 1119 34.35 1225 45.02 1328 56.32 1429 68.19 1524 80.54 1613 93.45 1698 106.91 27000 2900 916 16.91 1033 26.13 1138 36.05 1240 46.82 1340 58.39 1438 70.43 1532 82.93 1621 96.08 1705 109.70 28000 3008 941 18.18 1055 27.64 1157 37.76 1256 48.72 1353 60.48 1448 72.76 1541 85.53 1629 98.74 1713 112.66 29000 3115 966 19.50 1077 29.19 1177 39.58 1273 50.72 1367 62.64 1459 75.15 1550 88.14 1638 101.66 1721 115.63 30000 3222 991 20.87 1100 30.89 1197 41.43 1291 52.84 1382 64.90 1472 77.73 1560 90.88 1646 104.46 1729 118.64 20" SP 22" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 30" SP 28000 3008 1792 126.79 1869 141.53 1944 156.73 1980 164.28 2017 172.27 2053 180.19 2088 188.02 2123 196.04 2158 204.25 29000 3115 1800 130.08 1876 144.99 1949 160.17 1985 167.95 2021 175.94 2056 183.87 2091 191.97 2126 200.25 2160 208.43 30000 3222 1808 133.37 1883 148.40 1956 163.97 1991 171.73 2026 179.69 2061 187.86 2095 195.95 2129 204.22 2163 212.66 31000 3330 1816 136.68 1890 151.77 1962 167.44 1998 175.66 2032 183.57 2066 191.69 2100 200.01 2134 208.53 2167 216.94 32000 3437 1824 140.06 1899 155.63 1970 171.39 2005 179.52 2039 187.62 2073 195.95 2106 204.20 2139 212.66 2172 221.31 33000 3545 1833 143.76 1907 159.30 1978 175.33 2012 183.35 2046 191.62 2080 200.13 2113 208.58 2145 216.95 2178 225.82 34000 3652 1842 147.49 1915 163.07 1986 179.30 2020 187.46 2054 195.89 2087 204.27 2120 212.90 2152 221.45 2184 230.22 35000 3759 1851 151.21 1924 167.15 1994 183.35 2028 191.61 2062 200.17 2095 208.71 2127 217.19 2159 225.91 2191 234.85 36000 3867 1861 155.10 1933 171.26 2003 187.77 2037 196.15 2070 204.51 2103 213.17 2135 221.79 2167 230.66 2198 239.45 37000 3974 1872 159.13 1942 175.32 2011 191.96 2045 200.48 2079 209.26 2111 217.71 2143 226.43 2175 235.44 2206 244.37 38000 4082 1883 163.03 1952 179.58 2020 196.43 2054 205.14 2087 213.78 2120 222.66 2152 231.49 2183 240.27 2214 249.33 39000 4189 1896 167.29 1963 183.99 2030 201.13 2063 209.78 2096 218.63 2128 227.37 2160 236.34 2192 245.56 2222 254.36 40000 4296 1909 171.41 1975 188.53 2040 205.73 2073 214.66 2105 223.45 2137 232.40 2169 241.55 2200 250.59 2231 259.86 41000 4404 1923 175.73 1987 192.91 2051 210.51 2083 219.44 2115 228.50 2147 237.71 2178 246.77 2209 256.00 2239 265.08 42000 4511 1938 180.27 2001 197.73 2063 215.43 2094 224.39 2126 233.77 2156 242.61 2187 251.92 2218 261.38 2248 270.67 43000 4619 1953 184.76 2015 202.49 2076 220.48 2106 229.49 2137 238.90 2167 248.05 2197 257.31 2227 266.70 2257 276.22 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 39" SP 34000 3652 2215 238.86 2247 248.03 2277 256.73 2308 265.95 2338 274.98 2368 284.19 2398 293.55 2428 303.07 2457 312.36 35000 3759 2222 243.69 2253 252.73 2283 261.64 2314 271.08 2343 279.99 2373 289.43 2402 298.68 2432 308.46 2461 318.02 36000 3867 2229 248.46 2260 257.69 2290 266.78 2320 276.08 2349 285.20 2379 294.86 2408 304.34 2436 313.60 2465 323.41 37000 3974 2237 253.54 2267 262.60 2297 271.87 2327 281.35 2356 290.66 2385 300.16 2414 309.86 2442 319.33 38000 4082 2245 258.64 2275 267.85 2305 277.28 2334 286.57 2363 296.06 2392 305.75 2420 315.25 2448 324.93 39000 4189 2253 263.78 2283 273.12 2312 282.33 2342 292.14 2370 301.42 2399 311.28 2427 320.96 2455 330.83 40000 4296 2261 269.03 2291 278.46 2320 287.79 2349 297.36 2378 307.16 2406 316.79 2434 326.63 2462 336.66 41000 4404 2269 274.38 2299 283.92 2329 293.71 2358 303.39 2386 312.94 2414 322.70 2442 332.69 42000 4511 2278 280.15 2308 289.84 2337 299.38 2366 309.16 2394 318.78 2422 328.67 2450 338.79 43000 4619 2287 285.92 2316 295.43 2345 305.12 2374 315.03 2402 324.77 2430 334.73 2458 344.95 44000 4726 2296 291.64 2325 301.37 2354 311.27 2383 321.36 2411 331.25 2439 341.34 2466 351.25 45000 4834 2306 297.65 2335 307.64 2363 317.38 2391 327.28 2419 337.35 2447 347.61 47000 5048 2328 310.01 2355 319.83 2383 330.14 2410 340.15 2438 350.71 2465 360.99 49000 5263 2352 322.44 2379 332.96 2405 343.13 2432 353.79 2458 364.09 51000 5478 2379 335.51 2405 346.22 2430 356.62 2456 367.55 53000 5693 2408 349.14 2433 359.96 2458 370.91 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. 24 TWIN CITY FAN - CATALO 400

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 1202 1631 1888 2231 445 BCS Outlet Area: 11.39 ft 2 Wheel Diameter.: 44.50" Tip Speed (FPM): 11.65 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 17000 1493 569 7.44 740 15.14 885 24.11 1015 34.02 18500 1624 588 8.20 750 16.25 892 25.49 1017 35.70 1134 46.82 20000 1756 609 9.05 761 17.41 901 26.99 1022 37.45 1135 48.88 21500 1888 632 10.01 775 18.67 910 28.51 1030 39.39 1139 51.08 1242 63.51 23000 2019 656 11.06 791 20.00 920 30.19 1038 41.26 1145 53.31 1245 66.08 1341 79.63 24500 2151 681 12.23 809 21.44 931 31.93 1048 43.40 1153 55.69 1250 68.69 1343 82.51 1432 96.88 26000 2283 706 13.46 828 22.95 945 33.84 1057 45.50 1162 58.17 1257 71.44 1348 85.64 1434 100.21 1518 115.56 27500 2414 731 14.77 849 24.64 961 35.85 1068 47.85 1171 60.71 1266 74.43 1354 88.71 1438 103.62 1520 119.31 29000 2546 757 16.22 871 26.44 978 37.91 1081 50.37 1181 63.50 1275 77.42 1362 92.03 1444 107.17 1524 123.18 30500 2678 783 17.76 894 28.38 996 40.06 1095 52.85 1191 66.28 1284 80.49 1370 95.30 1452 111.00 1530 127.22 32000 2809 810 19.45 918 30.47 1015 42.33 1111 55.51 1203 69.29 1294 83.85 1380 99.02 1460 114.75 1537 131.30 33500 2941 837 21.24 942 32.64 1036 44.87 1128 58.26 1217 72.47 1304 87.18 1389 102.66 1469 118.73 1545 135.54 35000 3073 865 23.19 967 35.00 1058 47.57 1146 61.13 1232 75.65 1316 90.80 1399 106.58 1479 123.05 1554 140.01 36500 3205 893 25.25 992 37.45 1080 50.30 1165 64.16 1248 78.93 1330 94.63 1410 110.68 1488 127.26 1563 144.53 38000 3336 922 27.51 1017 40.02 1104 53.38 1185 67.36 1266 82.54 1345 98.47 1422 114.87 1498 131.73 1572 149.21 39500 3468 951 29.89 1043 42.83 1128 56.55 1206 70.76 1284 86.12 1361 102.44 1435 119.07 1509 136.37 1582 154.25 20" SP 22" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 30" SP 36500 3205 1634 162.37 1702 180.72 1768 199.68 1800 209.24 1832 219.06 1863 228.77 1894 238.70 1925 248.86 1956 259.23 38000 3336 1643 167.37 1711 186.18 1776 205.36 1807 214.86 1839 225.01 1870 235.05 1900 244.96 1930 255.11 1960 265.48 39500 3468 1652 172.51 1720 191.67 1784 210.96 1815 220.73 1846 230.78 1877 241.13 1907 251.35 1937 261.84 1966 272.15 41000 3600 1662 178.09 1729 197.27 1793 216.93 1824 226.93 1855 237.23 1885 247.46 1914 257.57 1944 268.35 1973 278.99 42500 3731 1672 183.67 1738 203.03 1802 223.00 1833 233.17 1863 243.31 1893 253.76 1923 264.52 1952 275.16 1980 285.64 44000 3863 1683 189.48 1748 209.19 1811 229.25 1842 239.57 1872 249.85 1902 260.49 1931 271.06 1960 281.92 1988 292.64 45500 3995 1695 195.44 1759 215.64 1821 235.96 1852 246.52 1882 256.99 1911 267.36 1940 278.08 1969 289.15 1997 300.09 47000 4126 1708 201.48 1770 221.93 1831 242.64 1861 253.11 1891 263.83 1921 274.85 1950 285.74 1978 296.50 2006 307.60 48500 4258 1723 207.95 1783 228.73 1842 249.57 1872 260.44 1901 271.09 1930 281.97 1959 293.10 1987 304.06 2015 315.32 50000 4390 1738 214.25 1797 235.61 1855 257.10 1883 267.60 1912 278.66 1941 289.92 1969 300.93 1997 312.17 2025 323.67 51500 4522 1754 220.81 1811 242.24 1868 264.35 1896 275.36 1924 286.47 1952 297.71 1980 309.12 2007 320.25 2034 331.57 53000 4653 1771 227.67 1827 249.53 1882 271.70 1909 282.81 1937 294.45 1964 305.73 1991 317.13 2018 328.67 2045 340.37 54500 4785 1789 234.86 1843 256.72 1897 279.29 1924 290.84 1950 302.09 1977 313.91 2003 325.34 2030 337.36 2056 349.00 56000 4917 1807 242.03 1860 264.24 1913 287.19 1939 298.71 1965 310.39 1991 322.23 2017 334.20 2042 345.75 2068 357.89 57500 5048 1826 249.59 1878 272.15 1930 295.46 1955 306.92 1981 319.01 2006 330.79 2031 342.72 2056 354.80 2081 366.96 59000 5180 1846 257.58 1897 280.47 1947 303.65 1972 315.51 1997 327.53 2022 339.73 2046 351.57 2071 364.08 2095 376.21 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 39" SP 44000 3863 2016 303.63 2044 314.90 2071 325.95 2098 337.24 2125 348.76 2151 360.01 2178 371.98 2204 383.66 2229 395.00 45500 3995 2025 311.31 2052 322.37 2079 333.67 2106 345.24 2132 356.56 2158 368.11 2184 379.89 2210 391.89 47000 4126 2034 319.04 2061 330.30 2088 341.85 2114 353.17 2140 364.75 2166 376.57 2192 388.64 2217 400.41 48500 4258 2043 326.89 2070 338.32 2096 349.57 2123 361.61 2149 373.42 2174 384.96 2200 397.29 2225 409.32 50000 4390 2052 334.95 2079 346.53 2106 358.42 2132 370.13 2158 382.13 2183 393.89 2208 405.91 51500 4522 2062 343.62 2088 354.92 2115 366.99 2141 378.84 2167 390.99 2192 402.90 2217 415.13 53000 4653 2071 351.76 2098 363.86 2124 375.68 2150 387.74 2176 400.07 2201 412.13 2226 424.48 54500 4785 2082 360.79 2108 372.75 2134 384.89 2160 397.25 2185 409.28 2210 421.55 56000 4917 2094 370.14 2119 382.00 2145 394.54 2170 406.70 2195 419.05 2220 431.61 57500 5048 2106 379.20 2131 391.53 2156 403.98 2181 416.57 2205 428.72 2230 441.63 59000 5180 2119 388.45 2144 401.31 2168 413.70 2192 426.18 2216 438.76 60500 5312 2134 398.45 2157 410.72 2181 423.65 2205 436.65 2228 449.13 62000 5443 2149 408.25 2172 420.96 2195 433.79 2218 446.74 63500 5575 2164 417.91 2187 431.02 2210 444.28 65000 5707 2181 428.61 2203 441.54 2225 454.61 66500 5838 2197 438.64 2219 451.96 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. WWW.TCF.COM 25

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 1092 1481 1780 2027 490 BCS Outlet Area: 13.80 ft 2 Wheel Diameter.: 49.00" Tip Speed (FPM): 12.83 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 20000 1449 511 8.72 669 17.92 802 28.68 922 40.62 22000 1594 530 9.73 679 19.38 808 30.46 923 42.80 24000 1739 550 10.81 690 20.95 817 32.46 928 45.20 1031 59.00 26000 1884 573 12.08 703 22.55 826 34.48 935 47.65 1034 61.79 1128 76.91 28000 2029 597 13.49 720 24.42 836 36.72 943 50.15 1040 64.76 1131 80.34 1218 96.78 30000 2174 622 15.05 738 26.34 848 39.16 953 53.02 1048 67.92 1136 83.79 1220 100.58 1301 118.20 1378 136.29 32000 2319 647 16.71 757 28.36 862 41.67 963 56.00 1057 71.24 1144 87.64 1225 104.67 1303 122.55 1379 141.31 34000 2464 672 18.50 778 30.63 878 44.32 974 59.11 1067 74.87 1152 91.39 1232 108.95 1308 127.25 1381 146.18 36000 2609 698 20.48 801 33.18 895 47.06 987 62.38 1077 78.61 1161 95.40 1240 113.34 1315 132.18 1386 151.47 38000 2754 725 22.69 824 35.80 914 50.08 1002 65.79 1088 82.49 1171 99.83 1249 117.99 1323 137.22 1393 157.03 40000 2899 752 25.02 848 38.66 934 53.29 1019 69.48 1101 86.60 1181 104.31 1259 123.05 1331 142.21 1400 162.37 42000 3043 780 27.60 873 41.77 956 56.88 1037 73.32 1115 90.66 1193 109.19 1268 127.98 1341 147.92 1409 168.33 44000 3188 808 30.33 898 45.03 978 60.52 1056 77.36 1132 95.31 1206 114.08 1279 133.47 1350 153.51 1418 174.35 46000 3333 836 33.21 923 48.45 1001 64.43 1076 81.64 1149 99.88 1221 119.23 1291 139.08 1360 159.48 1428 180.95 48000 3478 865 36.38 948 52.04 1025 68.65 1097 86.19 1167 104.66 1237 124.52 1304 144.69 1371 165.66 1437 187.29 50000 3623 894 39.74 974 55.97 1050 73.23 1119 91.02 1187 109.98 1254 130.02 1319 150.66 1384 172.31 1448 194.34 20" SP 22" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 30" SP 44000 3188 1483 196.11 1545 218.38 1605 241.30 1634 252.82 1663 264.64 1692 276.76 1720 288.67 1748 300.85 1776 313.27 46000 3333 1492 202.77 1553 225.24 1612 248.43 1641 260.34 1670 272.60 1698 284.69 1725 296.56 1753 309.24 1780 321.67 48000 3478 1501 209.63 1562 232.55 1621 256.38 1649 268.16 1677 280.30 1705 292.79 1732 305.08 1759 317.68 1786 330.58 50000 3623 1511 217.09 1571 240.05 1630 264.36 1658 276.44 1685 288.40 1713 301.23 1740 313.90 1766 326.34 1793 339.66 52000 3768 1521 224.52 1581 248.22 1639 272.51 1667 284.81 1694 297.03 1721 309.63 1748 322.61 1774 335.39 1800 348.51 54000 3913 1532 232.21 1591 256.43 1648 280.90 1676 293.42 1703 305.83 1730 318.65 1757 331.91 1783 344.99 1809 358.43 56000 4058 1545 240.49 1602 264.96 1658 289.86 1686 302.74 1713 315.44 1740 328.50 1766 341.38 1792 354.68 1817 367.79 58000 4203 1559 248.82 1614 273.70 1669 299.22 1696 312.05 1723 325.15 1749 337.98 1775 351.13 1801 364.65 1827 378.56 60000 4348 1574 257.31 1627 282.54 1680 308.30 1707 321.71 1733 334.76 1759 348.04 1785 361.58 1811 375.44 1836 389.00 62000 4493 1590 266.11 1642 291.99 1693 318.09 1719 331.60 1744 344.67 1770 358.51 1795 371.95 1821 386.25 1845 399.55 64000 4638 1606 274.78 1657 301.22 1707 327.98 1732 341.63 1757 355.39 1782 369.27 1807 383.31 1831 396.89 1856 411.33 66000 4783 1624 284.39 1673 310.82 1722 338.12 1747 352.39 1771 366.25 1795 380.23 1819 394.31 1843 408.52 1867 422.87 68000 4928 1642 293.95 1690 320.86 1738 348.67 1762 362.89 1785 376.70 1809 391.33 1832 405.48 1855 419.71 1879 434.73 70000 5072 1661 304.05 1708 331.42 1755 359.69 1778 373.84 1801 388.20 1824 402.75 1847 417.50 1869 431.75 1892 446.80 72000 5217 1681 314.73 1727 342.53 1772 370.61 1795 385.29 1817 399.54 1840 414.64 1862 429.26 1884 444.07 1906 459.05 74000 5362 1701 325.48 1746 353.65 1790 382.11 1812 396.66 1834 411.41 1856 426.37 1878 441.54 1899 456.17 1921 471.72 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 39" SP 40" SP 52000 3768 1826 361.95 1851 375.10 1876 388.53 1901 402.26 1925 415.61 1950 429.87 1974 443.72 1998 457.82 2021 471.45 54000 3913 1834 371.61 1859 385.12 1884 398.95 1908 412.43 1932 426.20 1956 440.23 1980 454.54 2003 468.40 2027 483.22 56000 4058 1843 381.88 1867 395.07 1892 409.23 1916 423.06 1940 437.20 1963 450.94 1987 465.66 2010 479.95 58000 4203 1852 392.25 1876 405.70 1900 419.49 1924 433.62 1948 448.09 1971 462.17 1994 476.54 2017 491.20 60000 4348 1861 402.91 1885 416.54 1909 430.54 1933 444.93 1957 459.68 1980 474.06 2003 488.76 2025 503.03 62000 4493 1870 413.78 1894 427.67 1918 441.89 1942 456.46 1966 471.43 1989 486.06 2011 500.29 64000 4638 1880 425.34 1904 439.60 1928 454.16 1951 468.30 1975 483.49 1998 498.30 2020 512.72 66000 4783 1891 437.42 1914 451.47 1938 466.45 1961 480.97 1984 495.76 2007 510.85 68000 4928 1902 449.19 1925 463.80 1948 478.59 1971 493.59 1994 508.81 2016 523.50 70000 5072 1914 461.24 1937 476.50 1959 491.15 1982 506.71 2004 521.69 2026 536.85 72000 5217 1928 474.21 1950 489.45 1972 504.79 1994 520.23 2015 535.02 74000 5362 1942 486.70 1964 502.62 1985 517.91 2006 533.27 76000 5507 1958 500.46 1979 516.18 1999 531.28 2020 547.34 78000 5652 1974 514.04 1994 529.53 2014 545.16 80000 5797 1990 527.48 2010 543.48 82000 5942 2008 542.39 2027 558.10 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. 26 TWIN CITY FAN - CATALO 400

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 986 1338 1549 1831 542 BCS Outlet Area: 16.92 ft 2 Wheel Diameter.: 54.25" Tip Speed (FPM): 14.20 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 25000 1478 465 10.94 606 22.31 725 35.54 833 50.36 27500 1625 482 12.17 615 24.13 732 37.94 835 53.20 931 69.77 30000 1773 502 13.64 626 26.16 740 40.39 839 56.00 932 73.20 1019 91.37 32500 1921 523 15.24 639 28.25 748 42.91 846 59.12 935 76.63 1019 95.25 1100 115.23 35000 2069 545 17.01 654 30.47 758 45.84 854 62.37 941 80.38 1023 99.76 1100 119.77 1175 141.14 37500 2216 568 18.99 671 32.92 769 48.81 863 65.96 949 84.46 1028 104.06 1103 124.74 1175 146.29 1245 168.98 40000 2364 592 21.21 690 35.68 783 52.09 873 69.88 957 88.55 1035 108.70 1108 129.83 1178 151.97 1246 175.12 42500 2512 615 23.49 710 38.64 798 55.42 883 73.66 966 93.09 1043 113.58 1115 135.29 1183 157.83 1249 181.48 45000 2660 639 26.03 731 41.83 815 59.11 896 77.89 976 97.98 1052 118.89 1123 140.99 1190 164.11 1254 188.08 47500 2807 664 28.87 752 45.11 832 62.79 911 82.41 987 103.01 1061 124.41 1131 146.72 1198 170.63 1260 194.71 50000 2955 689 31.87 775 48.90 851 66.95 926 86.81 999 108.01 1071 130.25 1140 153.07 1206 177.16 1268 202.05 52500 3103 715 35.19 798 52.86 872 71.63 943 91.71 1013 113.35 1082 136.21 1149 159.51 1214 183.86 1276 209.37 55000 3251 741 38.72 821 57.01 893 76.41 961 96.91 1029 119.23 1095 142.54 1160 166.66 1223 191.22 1285 217.35 57500 3398 767 42.45 844 61.38 914 81.32 980 102.45 1045 125.02 1109 148.95 1171 173.49 1233 199.01 1293 225.07 60000 3546 794 46.57 868 66.18 936 86.64 1000 108.36 1063 131.51 1124 155.60 1184 180.75 1244 207.03 1303 233.88 62500 3694 821 50.95 892 71.22 959 92.44 1021 114.69 1081 138.03 1140 162.57 1199 188.65 1256 215.14 1313 242.50 20" SP 22" SP 24" SP 26" SP 27" SP 28" SP 29" SP 30" SP 31" SP 55000 3251 1343 243.91 1398 270.98 1452 299.35 1479 314.19 1504 328.15 1530 343.12 1555 357.78 1580 372.76 1605 388.07 57500 3398 1351 252.16 1406 279.91 1460 309.15 1485 323.18 1511 338.29 1536 353.13 1561 368.36 1586 383.95 1610 399.17 60000 3546 1360 261.26 1415 289.56 1468 318.90 1493 333.33 1518 348.21 1543 363.52 1568 379.24 1592 394.65 1616 410.41 62500 3694 1369 270.48 1423 298.90 1476 328.75 1501 343.51 1526 358.76 1551 374.48 1575 389.92 1599 405.77 1622 421.26 65000 3842 1379 280.15 1432 309.03 1484 338.91 1510 354.60 1535 370.13 1559 385.47 1583 401.28 1607 417.54 1630 433.46 67500 3989 1390 290.10 1442 319.72 1493 349.94 1518 365.30 1543 381.12 1567 396.68 1591 412.76 1615 429.36 1638 445.63 70000 4137 1402 300.19 1453 330.79 1503 361.65 1527 376.80 1552 393.07 1576 408.99 1600 425.37 1623 441.41 1646 457.94 72500 4285 1416 311.05 1464 341.40 1513 373.08 1537 388.89 1561 405.00 1585 421.43 1608 437.42 1632 454.63 1655 471.45 75000 4433 1430 321.65 1477 352.82 1524 384.80 1548 401.41 1571 417.45 1595 434.53 1618 451.10 1641 467.99 1663 484.37 77500 4580 1445 332.73 1491 364.58 1537 397.47 1560 414.20 1582 430.26 1605 447.29 1628 464.56 1650 481.21 1672 498.14 80000 4728 1461 344.36 1506 376.85 1551 410.41 1573 427.18 1595 444.14 1617 461.23 1639 478.46 1661 495.86 1682 512.58 82500 4876 1478 356.64 1521 388.95 1565 423.09 1586 439.73 1608 457.45 1629 474.54 1651 492.67 1672 510.02 1693 527.51 85000 5024 1495 368.91 1538 402.49 1580 436.37 1601 453.70 1622 471.27 1643 489.07 1664 507.13 1684 524.46 1705 542.85 87500 5171 1513 381.94 1554 415.19 1596 450.35 1616 467.48 1637 485.73 1657 503.34 1677 521.17 1697 539.22 1718 558.46 90000 5319 1531 395.02 1572 429.48 1612 464.24 1632 482.01 1652 500.02 1672 518.30 1692 536.82 1712 555.57 1731 573.59 92500 5467 1550 408.95 1590 443.82 1629 478.94 1649 497.36 1668 515.11 1688 534.04 1707 552.28 1726 570.73 1745 589.40 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 39" SP 62500 3694 1646 437.90 1669 454.12 1691 469.87 1714 486.76 1736 503.13 1758 519.80 1780 536.76 1802 554.01 1824 571.53 65000 3842 1653 449.76 1676 466.47 1698 482.70 1720 499.28 1742 516.19 1764 533.44 1785 550.09 1807 567.96 1828 585.19 67500 3989 1661 462.34 1683 478.63 1705 495.29 1727 512.32 1749 529.74 1770 546.59 1791 563.76 1812 581.25 70000 4137 1669 474.98 1691 491.61 1713 508.67 1735 526.12 1756 543.06 1777 560.35 1798 577.99 1819 595.98 72500 4285 1677 487.87 1699 504.76 1721 522.13 1743 539.95 1764 557.25 1785 574.95 1806 593.01 1826 610.47 75000 4433 1686 502.01 1708 519.19 1729 535.86 1751 553.94 1772 571.55 1793 589.58 1813 607.03 77500 4580 1694 515.37 1716 532.96 1738 550.91 1759 568.34 1780 586.15 1801 604.43 1822 623.19 80000 4728 1704 530.44 1725 547.65 1747 566.11 1768 583.95 1789 602.13 1809 619.70 1830 638.68 82500 4876 1714 545.18 1735 563.05 1756 581.17 1777 599.54 1798 618.24 1818 636.22 85000 5024 1725 560.38 1746 579.03 1766 596.88 1787 615.94 1807 634.21 1827 652.74 87500 5171 1737 575.92 1757 594.45 1777 613.11 1797 631.90 1817 650.89 90000 5319 1751 592.80 1770 611.20 1789 629.72 1809 649.41 1828 668.13 92500 5467 1764 608.29 1783 627.38 1802 646.70 1821 666.21 95000 5615 1779 625.59 1798 645.39 1816 664.34 97500 5762 1794 642.69 1812 662.09 1830 681.69 100000 5910 1810 660.72 1828 680.78 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. WWW.TCF.COM 27

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 891 1082 1401 1655 600 BCS Outlet Area: 20.70 ft 2 Wheel Diameter.: 60.00" Tip Speed (FPM): 15.71 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 30000 1449 417 13.05 547 26.97 655 43.02 753 60.93 33000 1594 433 14.61 554 28.98 660 45.70 754 64.24 36000 1739 450 16.29 563 31.33 667 48.62 758 67.82 842 88.48 39000 1884 468 18.12 575 33.98 675 51.81 764 71.57 845 92.84 921 115.27 42000 2029 488 20.28 588 36.61 683 55.14 771 75.46 850 97.34 924 120.62 994 144.84 45000 2174 508 22.57 602 39.36 692 58.58 778 79.42 856 101.90 928 125.76 996 150.69 1062 177.03 1126 204.75 48000 2319 528 25.00 618 42.48 704 62.49 786 83.84 863 106.75 934 131.31 1001 157.24 1064 183.72 1126 211.83 51000 2464 549 27.76 636 46.07 717 66.45 795 88.49 871 112.13 941 137.13 1006 163.31 1068 190.72 1128 219.32 54000 2609 571 30.87 654 49.71 731 70.58 806 93.52 879 117.67 949 143.45 1013 170.13 1074 198.27 1132 227.21 57000 2754 592 34.00 673 53.70 747 75.27 819 98.90 888 123.48 956 149.55 1020 176.92 1080 205.52 1137 235.10 60000 2899 614 37.49 693 58.07 763 79.98 832 104.11 899 129.80 965 156.67 1028 184.43 1087 213.26 1144 243.92 63000 3043 637 41.38 713 62.64 781 85.37 847 109.99 911 136.13 974 163.59 1036 192.18 1095 221.73 1151 252.64 66000 3188 660 45.50 733 67.41 799 90.84 862 115.84 924 142.69 985 171.11 1045 200.43 1103 230.51 1158 261.43 69000 3333 683 49.85 754 72.70 818 96.79 879 122.52 938 149.59 997 178.70 1054 208.37 1111 239.37 1166 271.21 72000 3478 707 54.68 775 78.27 837 102.90 896 129.28 953 156.90 1010 186.59 1065 217.01 1120 248.66 1174 281.18 75000 3623 730 59.56 796 84.09 857 109.59 914 136.54 969 164.71 1024 194.89 1078 226.41 1130 258.20 1183 291.76 20" SP 22" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 30" SP 63000 3043 1204 284.31 1255 316.89 1305 350.77 1330 368.44 1354 385.71 1378 403.40 1401 420.59 1425 439.08 1448 457.07 66000 3188 1211 293.99 1262 327.68 1311 362.07 1334 378.76 1358 396.75 1381 414.32 1405 433.22 1427 450.66 1450 469.42 69000 3333 1218 303.72 1268 337.54 1317 373.00 1340 390.28 1363 408.04 1386 426.27 1409 444.97 1431 463.15 1454 482.71 72000 3478 1226 314.50 1276 349.04 1324 384.62 1347 402.42 1370 420.75 1392 438.68 1415 458.02 1437 476.88 1458 495.15 75000 3623 1234 325.55 1283 359.99 1331 396.28 1354 414.51 1377 433.35 1399 451.78 1421 470.72 1443 490.16 1464 509.06 78000 3768 1242 336.57 1291 372.11 1338 408.18 1361 426.73 1384 445.97 1406 464.84 1428 484.26 1449 503.19 1470 522.62 81000 3913 1251 348.10 1299 384.26 1346 421.36 1369 440.28 1391 458.83 1413 478.02 1435 497.85 1456 517.22 1477 537.12 84000 4058 1262 360.83 1308 397.06 1354 434.64 1377 454.10 1399 473.08 1421 492.62 1442 511.69 1464 532.47 1484 551.66 87000 4203 1273 372.94 1318 410.33 1363 448.69 1385 467.88 1407 487.47 1429 507.53 1450 527.02 1471 547.04 1492 567.62 90000 4348 1285 385.43 1329 423.93 1372 462.32 1394 482.37 1415 501.69 1437 522.43 1458 542.51 1479 563.03 1499 582.88 93000 4493 1298 398.55 1341 437.87 1383 477.38 1404 497.41 1425 517.65 1446 538.17 1466 557.86 1487 579.04 1507 599.46 96000 4638 1312 412.41 1354 452.44 1394 491.74 1415 512.85 1435 533.04 1455 553.40 1475 573.97 1496 595.98 1516 617.15 99000 4783 1326 426.15 1367 466.79 1407 507.75 1427 528.70 1446 548.83 1466 570.26 1485 590.66 1505 612.46 1525 634.49 102000 4928 1341 440.77 1381 481.98 1420 523.50 1439 544.17 1458 565.13 1477 586.37 1496 607.85 1515 629.47 1534 651.23 105000 5072 1357 456.40 1395 497.06 1433 539.05 1452 560.51 1471 582.30 1490 604.39 1508 625.54 1527 648.21 1545 669.81 108000 5217 1373 472.08 1410 513.15 1448 556.69 1466 577.80 1484 599.21 1503 622.13 1521 644.12 1539 666.38 1557 688.92 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 39" SP 81000 3913 1498 557.53 1518 577.32 1538 597.56 1558 618.24 1578 639.37 1598 660.92 1617 681.63 1636 702.71 1655 724.16 84000 4058 1505 572.52 1525 592.77 1545 613.52 1565 634.74 1584 655.21 1603 676.09 1623 698.66 1641 719.07 87000 4203 1512 587.67 1532 608.31 1552 629.47 1572 651.18 1591 672.12 1610 693.52 1629 715.36 1647 736.31 90000 4348 1520 604.43 1540 625.35 1559 645.61 1579 667.69 1598 689.05 1617 710.90 1636 733.23 1654 754.68 93000 4493 1527 620.31 1547 641.63 1567 663.46 1586 684.55 1605 706.20 1624 728.42 1643 751.17 96000 4638 1535 637.42 1555 659.31 1574 680.35 1594 703.16 1613 725.16 1631 746.30 1650 769.34 99000 4783 1544 655.54 1563 676.89 1583 699.90 1602 721.98 1620 743.08 1639 766.02 102000 4928 1553 673.20 1572 695.39 1591 717.87 1610 740.65 1628 762.40 1647 785.91 105000 5072 1564 692.83 1582 714.69 1600 736.72 1619 760.37 1637 782.88 1655 805.69 108000 5217 1575 711.69 1593 734.63 1610 756.29 1628 779.49 1646 802.91 111000 5362 1587 731.22 1604 753.75 1621 776.47 1639 800.76 114000 5507 1599 750.37 1616 773.73 1633 797.35 1650 821.20 117000 5652 1612 770.63 1629 794.81 1645 817.80 120000 5797 1626 792.11 1642 815.64 123000 5942 1640 813.45 126000 6087 1654 834.67 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. 28 TWIN CITY FAN - CATALO 400

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 810 984 1273 1504 660 BCS Outlet Area: 25.04 ft 2 Wheel Diameter.: 66.00" Tip Speed (FPM): 17.28 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 30000 1198 361 13.18 487 28.59 33000 1318 369 14.41 491 30.40 593 49.12 36000 1438 378 15.64 496 32.29 595 51.74 39000 1558 390 17.20 502 34.43 599 54.54 685 76.69 42000 1677 402 18.77 508 36.64 604 57.43 687 80.10 765 104.89 45000 1797 415 20.50 516 39.18 609 60.27 691 83.81 766 109.01 837 135.92 48000 1917 429 22.42 525 41.75 615 63.51 695 87.29 769 113.51 838 141.04 904 170.26 51000 2037 444 24.58 535 44.42 621 66.83 701 91.45 773 118.07 840 146.19 904 175.78 54000 2157 459 26.85 546 47.29 628 70.36 707 95.69 777 122.39 843 151.33 906 181.96 966 213.65 57000 2276 475 29.43 558 50.41 637 74.34 713 100.11 783 127.59 847 156.66 908 187.57 967 220.16 1024 254.12 60000 2396 490 31.97 570 53.55 646 78.08 719 104.51 789 132.88 852 162.35 912 193.94 969 226.75 1025 261.53 63000 2516 506 34.86 584 57.30 656 82.07 726 109.16 794 137.85 858 168.60 917 200.68 973 234.18 1027 269.07 66000 2636 522 37.90 598 61.11 667 86.36 735 114.42 801 143.90 864 174.97 922 207.30 977 241.25 1030 276.77 70000 2796 544 42.35 617 66.46 683 92.60 748 121.52 810 151.57 871 183.15 929 216.38 984 251.63 1036 287.99 74000 2955 566 47.08 637 72.37 700 99.30 761 128.41 821 159.78 880 192.56 937 226.51 991 261.97 1042 298.82 78000 3115 589 52.39 657 78.56 718 106.52 777 136.72 834 168.65 890 202.23 945 236.83 999 273.44 1049 310.44 20" SP 22" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 30" SP 74000 2955 1091 337.10 1138 376.23 1184 416.76 1207 437.85 1229 458.35 1251 479.35 1273 500.86 1294 521.69 1316 544.25 78000 3115 1098 350.07 1144 389.83 1189 431.15 1211 452.15 1232 472.55 1254 494.62 1275 516.01 1296 537.85 1317 560.17 82000 3275 1105 362.98 1151 404.08 1195 445.90 1216 466.63 1237 487.93 1258 509.77 1279 532.17 1300 555.08 1320 577.19 86000 3435 1112 376.16 1158 418.28 1201 460.28 1222 481.73 1243 503.80 1264 526.49 1284 548.51 1304 571.07 1324 594.14 90000 3594 1120 390.82 1165 432.76 1208 475.75 1229 497.82 1250 520.57 1270 542.74 1290 565.51 1310 588.88 1330 612.83 94000 3754 1128 405.51 1173 448.85 1216 492.73 1237 515.28 1257 537.36 1277 560.11 1297 583.55 1317 607.64 1336 630.96 98000 3914 1138 422.00 1181 465.05 1224 510.28 1244 532.02 1265 555.77 1285 578.99 1304 601.62 1324 626.32 1343 650.28 102000 4073 1148 437.79 1190 482.07 1232 527.97 1252 550.41 1272 573.43 1292 597.10 1312 621.49 1331 645.21 1350 669.69 106000 4233 1160 454.96 1200 499.63 1241 546.63 1261 570.06 1281 593.95 1300 616.96 1320 641.97 1339 666.18 1358 691.06 110000 4393 1172 471.50 1211 517.51 1250 564.60 1270 589.21 1289 612.78 1309 638.19 1328 662.61 1346 686.00 1365 711.48 114000 4553 1185 488.86 1224 537.16 1261 584.33 1280 608.94 1299 633.79 1318 658.95 1336 682.91 1355 708.79 1373 733.54 118000 4712 1199 507.23 1237 556.42 1273 604.49 1291 629.05 1310 655.37 1328 680.36 1346 705.60 1364 731.10 1382 756.91 122000 4872 1214 526.74 1250 575.36 1286 625.60 1304 651.31 1321 675.86 1339 702.28 1356 727.33 1374 754.16 1391 779.58 126000 5032 1229 546.20 1265 596.88 1299 646.36 1317 673.17 1334 698.83 1351 724.85 1368 751.17 1385 777.84 1402 804.65 130000 5192 1245 567.03 1280 618.34 1313 668.37 1330 694.70 1347 721.44 1364 748.54 1380 774.33 1397 802.15 1413 828.60 134000 5351 1262 589.38 1295 639.76 1328 691.77 1345 719.17 1361 745.35 1377 771.88 1393 798.75 1409 825.95 1425 853.46 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 39" SP 90000 3594 1349 635.94 1368 659.55 1387 683.64 1406 708.21 1424 731.73 1443 757.21 1461 781.52 1479 806.24 1497 831.36 94000 3754 1355 654.84 1374 679.29 1392 702.76 1411 728.25 1429 752.70 1447 777.58 1465 802.93 1483 828.71 1500 853.22 98000 3914 1362 674.85 1380 698.54 1398 722.75 1417 749.05 1435 774.34 1452 798.47 1470 824.73 1487 849.76 102000 4073 1369 694.85 1387 719.12 1405 743.99 1423 769.42 1441 795.45 1458 820.33 1476 847.42 1493 873.30 106000 4233 1376 715.10 1394 739.86 1412 765.26 1430 791.32 1448 817.98 1465 843.53 1482 869.62 1499 896.20 110000 4393 1384 737.57 1402 762.70 1420 788.54 1437 813.37 1455 840.62 1472 866.71 1489 893.41 114000 4553 1391 758.77 1409 784.52 1427 810.83 1445 837.78 1462 863.64 1479 890.16 1496 917.38 118000 4712 1400 783.12 1417 808.03 1435 835.12 1452 860.96 1470 889.15 1487 916.14 1503 941.87 122000 4872 1409 806.95 1426 832.92 1443 859.24 1460 885.95 1477 913.10 1494 940.71 126000 5032 1419 831.67 1436 858.89 1452 884.58 1469 912.35 1486 940.52 1502 967.14 130000 5192 1430 857.07 1446 883.90 1462 910.87 1479 939.94 1495 967.35 134000 5351 1441 881.32 1457 909.50 1473 937.91 1489 966.49 138000 5511 1454 908.67 1469 936.08 1485 965.75 1500 993.75 142000 5671 1467 935.62 1482 964.13 1497 992.95 146000 5831 1481 964.18 1495 991.79 150000 5990 1495 992.54 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. WWW.TCF.COM 29

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 735 890 1180 1360 730 BCS Outlet Area: 30.63 ft 2 Wheel Diameter.: 73.00" Tip Speed (FPM): 19.11 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 40000 1306 332 17.35 443 36.84 536 59.76 45000 1469 345 19.71 450 40.22 539 64.27 619 90.88 50000 1632 359 22.17 457 43.74 544 68.80 620 96.27 692 126.68 55000 1796 375 25.04 466 47.76 551 73.87 624 102.13 693 133.56 757 166.37 60000 1959 393 28.43 478 52.29 558 79.14 630 108.43 696 140.54 758 174.62 817 210.47 65000 2122 411 32.02 491 56.93 566 84.87 637 115.20 702 148.57 761 183.10 818 220.01 873 258.85 70000 2285 430 36.11 505 61.85 576 91.04 645 122.85 708 156.34 766 192.08 821 229.89 874 269.58 925 310.68 75000 2449 450 40.81 521 67.56 588 97.66 653 130.49 715 164.97 773 202.20 826 240.43 878 281.76 927 323.54 80000 2612 469 45.59 538 73.77 601 104.58 663 138.79 723 174.62 780 212.40 833 252.27 883 293.83 931 337.08 85000 2775 489 51.00 555 80.18 616 112.49 674 147.06 731 184.03 787 223.04 839 263.16 889 306.37 936 350.63 90000 2938 510 57.10 574 87.75 631 120.47 687 156.35 741 194.27 795 234.58 847 276.37 895 318.80 942 364.74 95000 3102 531 63.61 593 95.71 647 129.10 701 166.21 753 205.38 804 246.52 854 288.88 902 332.64 948 378.71 100000 3265 552 70.54 611 103.58 665 139.12 716 176.78 766 217.03 814 258.51 863 303.14 910 348.06 955 394.20 105000 3428 574 78.32 631 112.96 683 149.47 731 187.45 779 228.49 826 271.75 872 316.64 918 363.35 962 410.22 110000 3591 596 86.62 650 122.31 701 160.19 748 199.76 794 241.68 839 285.68 883 331.34 927 379.18 970 427.50 115000 3754 618 95.48 670 132.70 720 172.04 765 212.32 809 254.96 853 300.49 895 346.65 937 395.21 979 445.56 20" SP 22" SP 23" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 95000 3102 992 426.68 1034 475.72 1054 500.05 1074 525.10 1094 550.84 1114 577.25 1133 602.74 1153 630.43 1172 657.07 100000 3265 998 442.20 1040 492.91 1060 518.18 1080 544.26 1099 569.58 1118 595.59 1137 622.26 1156 649.60 1175 677.57 105000 3428 1005 459.34 1046 509.96 1066 536.02 1086 562.97 1105 589.19 1124 616.21 1143 643.98 1161 670.75 1179 698.17 110000 3591 1013 478.51 1053 528.81 1073 555.47 1092 581.59 1111 608.57 1130 636.41 1148 663.37 1167 692.84 1184 719.47 115000 3754 1020 496.34 1060 548.31 1080 575.56 1099 602.15 1118 629.73 1137 658.31 1155 686.04 1173 714.57 1190 742.05 120000 3918 1029 516.59 1068 569.50 1087 596.09 1106 623.41 1125 651.58 1144 680.66 1162 708.95 1180 738.19 1197 766.38 125000 4081 1038 535.92 1076 590.25 1095 618.10 1114 646.53 1132 673.87 1151 703.75 1169 732.60 1186 760.43 1204 791.07 130000 4244 1049 557.16 1086 613.41 1104 641.15 1122 669.26 1140 697.81 1158 726.95 1176 756.72 1193 785.26 1211 816.54 135000 4407 1061 579.28 1096 635.40 1114 664.90 1131 692.86 1149 722.96 1166 751.58 1184 782.61 1201 812.23 1218 842.44 140000 4571 1073 600.94 1107 658.11 1125 689.21 1141 717.09 1158 747.04 1175 777.27 1192 807.82 1209 838.80 1226 870.23 145000 4734 1086 624.00 1120 683.90 1136 712.75 1153 743.94 1169 773.65 1185 803.70 1202 836.02 1218 866.52 1234 897.32 150000 4897 1100 648.64 1132 707.51 1148 737.67 1164 768.30 1180 799.36 1196 830.90 1212 862.86 1228 895.14 1244 927.68 152500 4979 1107 660.93 1139 721.10 1155 751.95 1171 783.27 1186 813.04 1202 845.27 1218 877.97 1233 908.92 1249 942.35 155000 5060 1114 673.24 1146 734.66 1161 764.21 1177 796.18 1193 828.66 1208 859.51 1223 890.74 1239 924.61 1254 956.66 157500 5142 1121 685.54 1153 748.20 1168 778.39 1183 808.97 1199 842.11 1214 873.62 1229 905.55 1244 937.88 1259 970.59 160000 5224 1129 699.72 1160 761.75 1175 792.55 1190 823.78 1205 855.49 1220 887.65 1235 920.22 1250 953.26 1265 986.69 30" SP 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 130000 4244 1228 846.65 1245 877.60 1261 907.34 1277 937.89 1293 969.19 1309 1001.21 1325 1033.95 1340 1065.03 1356 1099.15 135000 4407 1235 873.30 1252 904.92 1268 935.14 1284 966.15 1300 998.02 1316 1030.73 1331 1061.84 1347 1096.08 140000 4571 1242 900.05 1259 932.62 1275 963.63 1291 995.28 1307 1027.71 1323 1060.90 1338 1092.49 1353 1124.90 145000 4734 1250 928.48 1267 962.31 1283 994.44 1298 1024.73 1314 1058.01 1330 1091.94 1345 1124.12 1360 1157.00 150000 4897 1259 958.18 1275 991.26 1291 1024.74 1306 1056.29 1322 1090.71 1337 1123.19 1352 1156.19 152500 4979 1264 973.72 1280 1007.66 1295 1039.56 1310 1071.77 1326 1106.88 1341 1139.97 1356 1173.52 155000 5060 1269 988.91 1284 1021.36 1299 1054.05 1315 1089.51 1330 1122.83 1345 1156.59 1360 1190.76 157500 5142 1274 1003.73 1289 1037.06 1304 1070.63 1319 1104.41 1334 1138.54 1349 1172.98 160000 5224 1280 1020.58 1295 1054.84 1309 1086.84 1324 1121.56 1339 1156.50 1353 1189.13 162500 5305 1285 1034.85 1300 1069.82 1314 1102.69 1329 1138.29 1343 1171.51 1358 1207.59 165000 5387 1291 1051.36 1306 1087.07 1320 1120.70 1334 1154.61 1348 1188.74 167500 5468 1297 1067.73 1311 1101.65 1325 1135.91 1339 1170.57 1353 1205.59 170000 5550 1303 1083.98 1317 1118.59 1331 1153.59 1345 1188.95 1359 1224.73 172500 5632 1309 1100.16 1323 1135.40 1337 1171.09 1351 1207.16 175000 5713 1316 1118.77 1329 1152.13 1343 1188.46 1357 1225.24 177500 5795 1322 1134.73 1336 1171.33 1349 1205.76 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. 30 TWIN CITY FAN - CATALO 400

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 663 804 1041 1230 807 BCS Outlet Area: 37.49 ft 2 Wheel Diameter.: 80.75" Tip Speed (FPM): 21.14 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 50000 1334 302 21.70 402 45.94 485 74.13 55000 1467 311 23.91 407 49.26 487 78.47 560 111.38 60000 1600 322 26.52 412 52.71 491 83.19 560 116.42 65000 1734 334 29.42 418 56.56 495 87.66 563 122.55 625 159.53 70000 1867 346 32.38 426 60.92 501 93.23 567 128.75 627 166.81 685 208.42 75000 2001 359 35.75 435 65.39 506 98.49 571 134.68 630 174.06 686 216.54 739 260.87 80000 2134 373 39.59 444 69.72 512 104.23 577 142.08 635 182.48 689 225.58 740 270.50 789 317.44 85000 2267 387 43.67 455 74.95 520 110.79 582 149.06 640 190.76 692 233.89 742 280.18 790 328.51 837 379.70 90000 2401 401 48.02 467 80.73 528 116.90 588 156.82 645 199.16 697 243.86 746 291.23 792 339.72 837 390.79 95000 2534 416 53.02 479 86.59 538 124.14 595 165.05 650 207.89 702 253.80 750 301.78 796 352.52 840 404.92 100000 2667 430 57.93 492 93.13 548 131.30 603 173.55 656 217.60 707 263.97 755 313.35 800 364.71 843 417.99 105000 2801 445 63.52 505 99.86 559 139.16 611 181.61 663 227.99 713 275.63 760 325.02 804 376.57 847 431.79 110000 2934 461 69.86 518 106.83 570 147.08 621 191.25 670 237.78 718 286.09 765 337.08 809 389.79 851 445.19 115000 3067 476 76.09 532 114.70 582 155.83 631 200.78 679 249.10 725 298.52 771 350.72 815 404.79 856 460.05 120000 3201 492 83.13 546 122.91 595 165.54 642 211.26 688 260.14 732 310.30 777 364.22 820 418.78 861 475.10 125000 3334 508 90.56 560 131.50 608 175.47 653 221.79 697 270.98 741 323.94 783 377.21 826 434.35 866 490.63 20" SP 22" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 30" SP 115000 3067 895 517.04 934 578.39 970 637.99 988 669.01 1006 700.85 1024 733.45 1042 766.82 1059 798.69 1076 831.29 120000 3201 900 533.53 938 594.87 974 656.49 992 688.68 1009 719.63 1027 753.53 1044 786.02 1061 819.25 1078 853.17 125000 3334 905 550.14 943 613.04 978 674.44 996 707.65 1013 739.65 1030 772.51 1047 806.17 1064 840.65 1080 873.50 130000 3468 911 569.06 948 631.29 983 694.24 1000 726.20 1017 759.12 1034 792.96 1051 827.71 1067 860.94 1083 894.90 135000 3601 916 586.59 953 649.92 988 714.11 1005 746.81 1022 780.55 1039 815.34 1055 848.66 1071 882.87 1087 917.89 140000 3734 922 606.03 958 669.10 993 734.28 1010 767.57 1027 802.06 1043 835.22 1060 871.78 1076 906.90 1091 940.32 145000 3868 928 625.16 963 688.37 998 755.05 1015 788.86 1032 823.83 1048 857.60 1064 892.40 1080 928.25 1096 965.06 150000 4001 934 643.58 969 709.57 1004 778.41 1021 813.03 1037 846.23 1053 880.45 1070 918.36 1085 952.27 1101 989.83 155000 4134 942 665.24 976 732.39 1009 799.30 1026 834.96 1043 871.51 1059 906.49 1075 942.43 1090 976.75 1106 1014.86 160000 4268 950 685.96 983 754.45 1016 824.45 1032 859.03 1048 894.24 1064 930.16 1080 966.95 1096 1004.66 1111 1040.59 165000 4401 959 708.34 991 777.78 1022 846.43 1038 882.49 1054 919.07 1070 956.25 1085 991.42 1101 1030.08 1116 1066.78 170000 4535 968 730.36 999 800.26 1030 872.35 1045 907.61 1061 945.83 1076 981.83 1091 1018.31 1107 1058.19 1122 1095.97 175000 4668 977 752.12 1008 824.72 1038 897.27 1053 934.30 1068 971.67 1083 1009.30 1098 1047.32 1113 1085.85 1127 1121.91 180000 4801 987 775.99 1017 848.86 1046 921.55 1061 960.03 1076 999.10 1090 1035.75 1105 1075.50 1119 1112.67 1134 1153.21 185000 4935 997 799.78 1026 872.70 1055 948.03 1070 987.95 1084 1025.64 1098 1063.86 1112 1102.52 1126 1141.38 1140 1180.55 190000 5068 1008 825.98 1036 898.91 1065 976.92 1079 1015.49 1093 1054.57 1107 1094.23 1120 1131.36 1134 1172.03 1148 1213.01 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 39" SP 145500 3881 1112 1004.04 1127 1040.07 1142 1076.90 1157 1114.58 1172 1153.02 1186 1189.23 1201 1229.17 1215 1266.75 1229 1304.91 150000 4001 1116 1025.68 1131 1062.40 1146 1100.04 1161 1138.52 1175 1174.86 1190 1214.98 1204 1252.81 1218 1291.30 155000 4134 1121 1051.36 1136 1088.80 1151 1127.24 1165 1163.58 1180 1203.78 1194 1241.77 1208 1280.49 1222 1320.01 160000 4268 1126 1077.49 1141 1115.51 1156 1154.59 1170 1191.63 1184 1229.52 1199 1271.45 1212 1307.80 1226 1348.15 165000 4401 1131 1104.36 1146 1142.86 1161 1182.40 1175 1219.94 1189 1258.49 1203 1297.95 1217 1338.26 170000 4535 1137 1134.46 1151 1170.79 1166 1210.99 1180 1249.01 1194 1287.94 1208 1327.93 1222 1368.90 175000 4668 1142 1161.53 1157 1201.88 1171 1239.86 1185 1278.61 1199 1318.19 1213 1358.64 1227 1400.11 180000 4801 1148 1191.19 1162 1229.66 1177 1271.91 1191 1311.67 1205 1352.12 1219 1393.42 185000 4935 1155 1223.22 1169 1263.15 1183 1303.60 1196 1341.20 1210 1382.72 1224 1424.99 190000 5068 1162 1254.27 1175 1292.56 1189 1334.48 1202 1373.50 1216 1416.36 1230 1459.83 195000 5201 1169 1284.12 1182 1324.15 1196 1367.81 1209 1408.37 1222 1449.21 200000 5335 1177 1316.05 1190 1357.82 1203 1399.91 1216 1442.16 1229 1484.73 205000 5468 1186 1350.79 1198 1390.56 1211 1434.19 1224 1478.29 210000 5601 1194 1381.68 1207 1426.24 1219 1467.73 215000 5735 1203 1415.54 1216 1461.50 1228 1504.37 220000 5868 1213 1452.71 1225 1496.44 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. WWW.TCF.COM 31

PERFORMANCE DATA Max. RPM Design 14 Design 17 Design 22 Design 26 602 730 944 1116 890 BCS Outlet Area: 45.54 ft 2 Wheel Diameter.: 89.00" Tip Speed (FPM): 23.30 x RPM 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 70000 1537 287 30.58 372 62.18 443 97.89 508 138.55 75000 1647 296 33.45 376 65.83 447 103.14 509 144.09 567 188.62 80000 1757 305 36.39 381 69.92 450 107.59 511 149.82 568 196.02 85000 1866 314 39.37 386 73.70 454 112.83 514 155.97 569 202.73 621 252.52 90000 1976 324 42.83 393 78.35 458 118.27 518 162.86 571 209.78 622 261.02 670 314.17 95000 2086 334 46.44 400 82.88 463 124.49 521 168.79 574 217.46 624 270.01 671 324.43 716 381.24 100000 2196 344 50.22 408 87.98 468 130.46 525 175.88 578 226.06 626 278.28 672 333.85 716 391.55 759 452.73 105000 2306 355 54.64 416 93.08 474 136.86 530 184.20 582 234.66 629 287.41 674 343.89 717 402.63 759 464.50 110000 2415 366 59.31 425 98.91 480 142.94 534 191.42 585 242.21 633 297.72 677 354.83 719 414.48 760 477.22 115000 2525 376 63.72 434 104.81 487 149.74 539 199.38 590 252.54 637 308.04 680 365.39 722 427.28 762 490.88 120000 2635 387 68.86 443 110.78 495 157.39 545 208.00 594 261.66 640 317.07 684 377.39 725 439.56 764 503.61 125000 2745 398 74.24 453 117.66 503 165.04 551 216.18 599 271.90 644 327.90 687 387.75 728 451.51 767 517.63 130000 2855 410 80.45 463 124.73 511 172.70 558 225.33 604 281.71 649 340.41 691 400.01 732 465.23 770 531.24 135000 2964 421 86.33 473 132.02 520 181.45 565 234.34 610 292.37 653 351.19 695 412.65 735 477.11 773 544.59 140000 3074 433 93.10 483 139.55 529 190.28 573 244.53 616 302.59 658 363.18 700 427.23 739 491.22 777 560.02 145000 3184 444 99.50 494 148.22 538 199.20 581 254.72 623 314.05 664 376.31 704 439.86 743 505.71 781 575.64 20" SP 22" SP 24" SP 25" SP 26" SP 27" SP 28" SP 29" SP 30" SP 140000 3074 813 630.78 847 702.13 881 778.10 897 815.00 913 852.86 929 891.59 945 931.24 961 971.76 976 1010.12 145000 3184 816 645.57 850 718.61 883 794.00 900 834.76 915 870.99 931 911.02 947 952.01 962 990.83 978 1033.63 150000 3294 820 662.77 854 737.46 886 812.07 902 851.08 918 891.21 934 932.43 949 971.65 964 1011.76 979 1052.70 155000 3404 824 680.27 858 756.33 890 832.63 906 872.67 921 910.91 937 953.19 952 993.53 967 1034.82 981 1073.77 160000 3513 828 698.27 861 772.71 893 850.35 909 891.15 924 930.23 940 973.52 955 1014.83 969 1053.93 984 1097.26 165000 3623 832 716.50 865 792.19 897 871.00 913 912.59 928 952.47 943 993.52 958 1035.72 972 1075.78 987 1120.11 170000 3733 836 734.70 869 812.11 901 891.99 916 931.16 932 974.81 947 1016.64 961 1056.42 976 1100.63 990 1142.57 175000 3843 841 755.23 873 832.19 905 913.54 920 953.17 935 994.20 950 1036.64 965 1080.41 979 1122.03 994 1168.24 180000 3953 845 772.55 878 854.98 909 935.38 924 975.71 939 1017.28 954 1060.20 969 1104.61 983 1146.92 997 1190.38 185000 4062 851 794.70 882 874.51 913 957.25 928 998.47 943 1040.81 958 1084.36 973 1129.27 987 1172.09 1001 1216.22 190000 4172 857 816.09 887 896.39 917 978.80 932 1021.18 947 1064.49 962 1108.88 976 1150.97 991 1197.85 1005 1242.44 195000 4282 863 836.74 892 917.53 922 1003.10 937 1046.85 952 1091.44 966 1133.47 980 1176.42 994 1220.42 1008 1265.53 200000 4392 869 857.00 898 940.90 927 1026.77 942 1072.08 956 1114.64 970 1157.87 985 1205.52 998 1246.80 1012 1292.72 205000 4502 876 879.90 904 963.52 933 1052.94 947 1096.63 961 1140.72 975 1185.42 989 1230.75 1003 1276.88 1016 1320.06 210000 4611 883 902.57 911 989.00 939 1078.27 952 1120.29 966 1166.08 980 1212.36 994 1259.21 1007 1302.87 1021 1351.12 215000 4721 890 925.05 918 1014.20 945 1102.94 958 1146.51 972 1194.20 985 1238.48 998 1283.14 1012 1332.17 1025 1377.86 31" SP 32" SP 33" SP 34" SP 35" SP 36" SP 37" SP 38" SP 39" SP 170000 3733 1004 1185.48 1018 1229.42 1032 1274.29 1046 1320.12 1059 1363.02 1073 1410.64 1086 1455.14 1099 1500.33 1112 1546.30 175000 3843 1008 1212.13 1021 1253.35 1035 1299.22 1049 1346.12 1062 1390.10 1075 1434.92 1088 1480.49 1101 1526.94 1114 1574.11 180000 3953 1011 1235.04 1025 1280.78 1038 1323.80 1052 1371.67 1065 1416.57 1078 1462.42 1091 1509.10 1104 1556.71 185000 4062 1015 1261.58 1028 1304.38 1042 1351.99 1055 1396.84 1068 1442.67 1081 1489.40 1094 1537.15 1107 1585.76 190000 4172 1018 1284.62 1032 1331.83 1045 1376.34 1058 1421.91 1072 1472.64 1084 1516.10 1097 1564.69 1110 1614.27 195000 4282 1022 1311.90 1036 1359.64 1049 1404.78 1062 1451.07 1075 1498.40 1088 1546.88 1101 1596.37 1113 1642.48 200000 4392 1026 1339.79 1039 1384.10 1053 1433.67 1066 1480.50 1079 1528.53 1091 1573.37 1104 1623.66 1116 1670.50 205000 4502 1030 1368.03 1043 1413.01 1057 1463.24 1070 1510.55 1083 1559.05 1095 1604.45 1108 1655.40 210000 4611 1034 1396.22 1047 1442.16 1060 1488.99 1073 1536.91 1086 1585.89 1099 1636.08 1111 1683.02 215000 4721 1038 1424.18 1051 1471.17 1064 1519.05 1077 1567.79 1090 1617.54 1103 1668.39 1115 1715.82 220000 4831 1043 1455.71 1056 1504.13 1069 1553.20 1081 1598.66 1094 1649.44 1107 1701.16 230000 5051 1053 1516.79 1065 1563.92 1078 1615.92 1090 1663.98 1103 1717.24 1115 1766.48 240000 5270 1064 1578.33 1076 1629.03 1088 1679.93 1100 1731.16 1112 1782.85 250000 5490 1077 1645.92 1088 1694.93 1100 1749.19 1111 1799.23 260000 5709 1090 1712.12 1101 1763.75 1113 1820.91 270000 5929 1105 1786.69 1115 1836.21 Underlined numbers indicate maximum static efficiency. Performance is for BCS with outlet duct and with or without inlet duct. BHP is a fan shaft brake horsepower and does not include belt drive losses. 32 TWIN CITY FAN - CATALO 400

DIMENSIONAL DATA Inlet Boxes B A D (see Note 3) Flange C FAN SIZE A B C D INLET AREA (SQ. FT.) FLANE CL. 14 CL. 17 CL. 22 & 26 CL. 14 CL. 17 CL. 22 & 26 165 27.25 9.00 10.75 10.75 11.25 1.70 1.00 X 1.00 1.00 X 1.00 182 30.00 10.00 12.13 12.13 12.39 2.08 1.25 X 1.25 1.25 X 1.25 200 33.00 11.00 13.44 13.44 13.53 2.52 1.25 X 1.25 1.25 X 1.25 222 36.75 12.25 15.31 14.81 14.31 15.00 3.13 1.25 X 1.25 1.25 X 1.25 2.50 X 2.50 245 40.50 13.50 15.50 15.50 15.50 16.47 3.80 1.25 X 1.25 1.50 X 1.50 2.50 X 2.50 270 44.50 14.75 17.44 17.44 17.44 18.10 4.56 1.50 X 1.50 1.50 X 1.50 2.50 X 2.50 300 49.50 16.50 22.75 19.81 19.81 20.05 5.67 1.50 X 1.50 1.50 X 1.50 2.50 X 2.50 330 54.50 18.25 26.00 22.25 22.25 22.01 6.91 1.50 X 1.50 1.50 X 1.50 2.50 X 2.50 365 60.25 20.00 25.00 25.00 25.00 24.29 8.37 1.50 X 1.50 1.50 X 1.50 2.50 X 2.50 402 66.50 22.25 28.00 28.00 27.50 26.73 10.28 1.50 X 1.50 2.00 X 2.00 2.50 X 2.50 445 73.50 24.50 31.38 31.38 30.38 29.50 12.51 1.50 X 1.50 2.00 X 2.00 2.50 X 2.50 490 81.00 27.00 35.00 35.00 34.00 32.43 15.19 2.00 X 2.00 2.00 X 2.00 2.50 X 2.50 542 89.50 30.00 39.06 38.56 38.06 35.85 18.65 2.00 X 2.00 2.50 X 2.50 2.50 X 2.50 600 99.00 33.00 43.69 43.19 42.69 39.60 22.69 2.00 X 2.00 2.50 X 2.50 2.50 X 2.50 660 109.00 36.50 47.94 47.44 47.44 43.51 27.63 2.50 X 2.50 2.50 X 2.50 2.50 X 2.50 730 120.50 40.00 52.50 52.00 52.00 48.07 33.47 2.50 X 2.50 2.50 X 2.50 2.50 X 2.50 807 134.00 44.50 58.50 58.00 58.00 53.12 41.41 2.50 X 2.50 2.50 X 2.50 2.50 X 2.50 890 147.00 49.00 64.75 64.25 64.25 58.50 50.02 2.50 X 2.50 2.50 X 2.50 2.50 X 2.50 NOTES: 1. Dimensions are not to be used for construction. 2. Dimensions are in inches unless otherwise noted. 3. For Integral Inlet Box, consult factory for "D" dimensions. WWW.TCF.COM 33

DIMENSIONAL DATA Arrangements 1 & 9, Class 14 HE HA P J HQ A A. SIDES DISCH Q HC KL DX DISCH. FLANE KS KWY SIZE OUTSIDE HOUSIN OUTSIDE HOUSIN A B C DC MOTOR (ARR 9 ONLY) SEE NOTE 5 SE SD DIA. SHAFT B A. SCROLL BA BASE ANLES O.D. INLET C N H CW THD H HP HD HH HQ HC H HB HF HA HE HE HB HA HH H DA DD DE DF D CW DBD CW TAU CW UBD CW BAU CW BHD DISCH J NOTE 2 WITH OPTIONAL FLANED INLET K K L M FAN HS FAN SHAFT M AH DBD ONLY BH DIA. BASE HOLES FOUNDATION PLAN (FOR DBD SEE NOTE 1) MOTOR LOCATION L (LEFT) SHOWN 34 TWIN CITY FAN - CATALO 400

DIMENSIONAL DATA DA DC DD DE DF D SIZE A AH B BA BH C ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 SEE NOTE 4 165 17.44 9.75 13.19 1.50 x 2.00 0.44 17.75 13.13 20.00 13.50 20.00 14.50 20.00 15.25 20.00 16.25 20.00 19.50 20.00 182 19.38 10.81 14.56 1.50 x 2.00 0.44 19.50 14.50 23.00 14.75 23.00 15.75 23.00 16.75 23.00 17.75 23.00 22.00 23.00 200 21.19 11.63 15.94 1.50 x 2.00 0.56 21.38 15.81 23.00 16.25 23.00 17.25 23.00 18.25 23.00 19.25 23.00 24.00 23.00 222 23.56 12.88 17.69 2.00 x 2.00 0.56 23.75 17.69 23.00 18.00 23.00 19.25 23.00 20.50 23.00 22.00 23.00 26.50 25.50 245 25.94 14.13 19.44 2.00 x 2.00 0.56 26.06 19.50 23.00 20.00 23.00 21.25 23.00 22.50 23.00 24.00 23.00 28.75 28.00 270 28.63 15.56 21.38 2.00 x 2.00 0.56 28.50 21.44 26.00 22.00 26.00 23.50 26.00 24.75 26.00 26.25 26.00 31.50 30.50 300 31.81 17.25 23.81 2.50 x 2.50 0.56 31.63 26.75 26.75 26.75 26.75 26.75 26.75 28.50 28.50 30.00 30.00 35.50 35.50 330 35.13 19.06 26.06 2.50 x 2.50 0.56 34.75 30.00 30.00 30.00 30.00 30.00 30.00 31.00 31.00 32.75 32.75 39.00 39.00 365 38.69 21.13 28.88 2.50 x 2.50 0.56 38.50 29.00 29.00 29.50 29.50 31.50 31.50 33.50 33.50 35.50 35.50 41.00 41.00 402 42.63 23.31 31.81 3.00 x 3.00 0.81 42.44 32.00 32.00 33.00 33.00 35.25 35.25 37.00 37.00 39.50 39.50 45.50 45.50 445 47.13 25.81 35.19 3.00 x 3.00 0.81 46.88 35.38 35.38 35.50 35.50 38.50 38.50 40.00 40.00 43.25 43.25 50.00 50.00 490 51.94 28.13 38.63 3.00 x 3.00 0.81 51.63 39.00 39.00 39.00 39.00 42.25 42.25 44.00 44.00 47.50 47.50 54.75 54.75 542 57.38 31.81 42.88 3.00 x 4.00 0.81 57.13 43.06 43.06 43.50 43.50 46.50 46.50 49.00 49.00 52.25 52.25 60.25 60.25 600 63.50 34.94 47.31 3.00 x 4.00 0.81 63.13 47.69 47.69 48.00 48.00 51.25 51.25 54.00 54.00 57.50 57.50 66.25 66.25 660 69.69 39.13 52.19 3.50 x 5.00 0.81 69.38 52.44 52.44 52.50 52.50 55.75 55.75 59.00 59.00 63.00 63.00 73.25 73.25 730 77.25 42.63 57.56 3.50 x 5.00 0.81 76.75 58.00 58.00 57.00 57.00 61.75 61.75 64.50 64.50 69.50 69.50 80.75 80.75 807 85.44 47.06 63.63 3.50 x 5.00 0.81 84.88 64.19 64.19 63.00 63.00 67.50 67.50 72.00 72.00 76.50 76.50 89.00 89.00 890 94.13 50.25 70.13 3.50 x 5.00 0.81 93.38 70.00 70.00 69.25 69.25 73.75 73.75 78.25 78.25 85.00 85.00 97.75 97.75 SIZE DX FR H A B C ARR 9 ARR 1 ARR 9 HA HB HC HD HE HF H HH HP HQ J 165 1.00 x 1.00 215T 24.25 14 14 12.13 29.25 36.63 13.13 22.25 18.38 15.06 14.13 13.31 12.50 11.69 19.38 10.19 182 1.25 x 1.25 254T 26.00 12 14 13.00 31.63 42.38 14.50 24.81 20.56 16.69 15.69 14.75 13.81 12.88 21.31 11.38 200 1.25 x 1.25 254T 28.00 12 14 14.00 34.00 43.75 15.81 27.00 22.38 18.38 17.31 16.25 15.19 14.13 23.13 12.06 222 1.25 x 1.25 256T 31.25 12 14 15.63 38.25 45.25 17.69 30.00 24.75 20.44 19.06 17.94 16.81 15.69 25.50 12.94 245 1.25 x 1.25 256T 33.50 12 14 16.75 41.50 47.00 19.50 33.00 27.13 22.38 21.00 19.75 18.50 17.25 27.88 13.81 270 1.50 x 1.50 284T 36.00 12 14 18.00 45.38 51.75 21.44 36.44 30.06 24.69 23.19 21.81 20.44 19.06 30.56 15.25 300 1.50 x 1.50 286T 41.00 10 12 20.50 55.75 55.75 23.81 40.31 33.25 27.44 25.75 24.25 22.75 21.25 34.25 17.00 330 1.50 x 1.50 324T 44.00 10 12 22.00 60.63 60.63 26.25 44.44 36.56 30.13 28.38 26.69 25.00 23.31 37.56 18.13 365 1.50 x 1.50 324T 48.00 10 12 24.00 63.38 63.38 29.00 48.88 40.13 33.50 31.50 29.63 27.75 25.88 41.13 19.50 402 1.50 x 1.50 326T 52.50 10 12 26.25 67.88 67.88 32.00 53.81 44.06 37.00 34.69 32.63 30.56 28.50 45.56 22.00 445 1.50 x 1.50 364T 56.50 10 12 28.25 72.88 72.88 35.38 59.38 48.56 40.88 38.25 36.00 33.75 31.50 50.06 24.69 490 2.00 x 2.00 364T 61.50 10 12 30.75 76.63 76.63 39.00 65.69 53.88 44.88 42.19 39.69 37.19 34.69 54.88 26.38 542 2.00 x 2.00 404T 67.00 10 12 33.50 87.50 87.50 43.06 72.38 59.31 49.75 46.69 43.94 41.19 38.44 61.31 59.75 28.50 600 2.00 x 2.00 404T 73.00 10 12 36.50 91.75 91.75 47.69 80.00 65.44 55.00 51.69 48.63 45.56 42.50 67.44 65.75 31.75 660 2.50 x 2.50 405T 80.00 10 12 40.00 101.25 101.25 52.44 88.06 72.13 60.38 56.81 53.38 49.94 46.50 74.63 72.25 34.25 730 2.50 x 2.50 405T 88.00 10 10 44.00 109.63 109.63 58.00 97.31 79.63 66.94 62.88 59.13 55.38 51.63 82.13 79.75 36.94 807 2.50 x 2.50 405T 95.50 10 10 47.75 118.63 118.63 64.19 107.50 87.81 74.00 69.50 65.38 61.25 57.13 90.31 87.75 40.94 890 2.50 x 2.50 405T 106.50 7 10 53.25 128.13 128.13 70.00 117.75 96.50 81.56 76.63 72.06 67.50 62.94 99.00 96.50 45.19 SIZE K KL KS L P M N ARR 1 ARR 9 ARR 1 ARR 9 Q SD SE 165 7.75 3.00 0.25 x 0.13 12.50 19.88 8.75 0.88 22.38 29.75 8.69 1.19 3.75 182 8.44 3.50 0.38 x 0.19 13.50 24.25 9.63 0.88 24.56 35.31 9.63 1.44 4.25 200 9.13 3.50 0.38 x 0.19 14.50 24.25 10.63 0.88 26.25 36.00 10.56 1.44 4.25 222 10.00 4.00 0.38 x 0.19 16.50 23.50 11.75 0.88 30.13 37.13 11.75 1.69 4.75 245 10.88 4.50 0.50 x 0.25 18.00 23.50 12.88 0.88 33.00 38.50 12.94 1.94 5.25 270 11.81 4.50 0.50 x 0.25 20.00 26.38 14.13 0.88 35.94 42.31 14.25 1.94 5.25 300 13.31 5.00 0.50 x 0.25 26.88 26.88 15.88 1.13 44.56 44.56 15.81 2.19 5.75 330 14.44 5.00 0.50 x 0.25 29.50 29.50 17.38 1.13 48.31 48.31 17.50 2.19 5.75 365 15.81 5.00 0.63 x 0.31 29.50 29.50 18.88 1.13 49.69 49.69 19.25 2.44 5.75 402 17.56 5.00 0.63 x 0.31 30.00 30.00 20.88 1.38 51.69 51.69 21.25 2.44 5.75 445 19.25 5.50 0.63 x 0.31 31.63 31.63 22.88 1.38 55.50 55.50 23.50 2.69 6.25 490 20.94 5.50 0.75 x 0.38 32.00 32.00 25.38 1.38 57.56 57.56 25.88 2.94 6.25 542 23.56 6.00 0.88 x 0.44 36.63 36.63 27.63 1.88 64.81 64.81 28.63 3.44 6.75 600 25.81 6.00 0.88 x 0.44 36.38 36.38 30.63 1.88 66.81 66.81 31.69 3.44 6.75 660 28.75 7.00 1.00 x 0.50 39.00 39.00 33.13 2.38 72.88 72.88 34.75 3.94 7.75 730 31.44 7.50 1.00 x 0.50 42.00 42.00 37.13 2.38 79.06 79.06 38.50 3.94 8.25 807 34.44 8.00 1.00 x 0.50 45.00 45.00 40.88 2.38 85.81 85.81 42.63 4.44 9.00 890 37.69 8.00 1.25 x 0.63 48.00 48.00 46.38 2.38 92.06 92.06 46.94 4.94 9.00 AC17014E NOTES: 1. Punched outlet flanges are included on all discharges per AC14986, or for 'DBD' AC14867. 2. Optional punched inlet per AS363. 3. 'CW' rotation is shown. 'CCW' rotation is similar but opposite. 4. For fans with inlet box at 90 o or 270 o use 'BAU' discharge dimension 'DF' for centerline height. 5. 'FR' equals maximum motor frame. Standard Arr. 9 motor location is on the left for "CW" rotation units and on the right for "CCW" rotation units (unless otherwise specified). WWW.TCF.COM 35

DIMENSIONAL DATA Arrangements 1 & 9, Class 17 HE HA NOTE 1 P J HQ A A. SIDES DISCH Q HC KL DX DISCH. FLANE KS KWY SIZE OUTSIDE HOUSIN OUTSIDE HOUSIN A B C DC NOTE 5 SE SD DIA. SHAFT B A. SCROLL BA BASE ANLES O.D. INLET C D H N CW THD H HP HD HH HQ HC H HB HF HA HE HE HB HA HH H DA DD HE DF D CW DBD CW TAU CW UBD CW BAU D CW BHD M M DISCH J NOTE 2 K K FAN HS FAN SHAFT WITH OPTIONAL FLANED INLET L BH DIA. BASE HOLES FOUNDATION PLAN (FOR DBD SEE NOTE 1) 36 TWIN CITY FAN - CATALO 400

DIMENSIONAL DATA DA DC DD DE SIZE A B BA BH C ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 DF D SEE NOTE 4 FOR ARRANEMENT 1 ARR 1 ARR 9 ARR 1 ARR 9 165 17.56 13.31 1.50 x 2.00 0.44 17.75 13.13 23.75 13.50 23.75 14.50 23.75 15.25 23.75 16.25 23.75 19.50 23.75 182 19.50 14.63 2.00 x 2.00 0.56 19.50 14.50 26.25 14.75 26.25 15.75 26.25 16.75 26.25 17.75 26.25 22.00 26.25 200 21.31 16.00 2.00 x 2.00 0.56 21.38 15.81 29.50 16.25 29.50 17.25 29.50 18.25 29.50 19.25 29.50 24.00 29.50 222 23.69 17.75 2.50 x 2.50 0.56 23.75 17.69 30.00 18.00 30.00 19.25 30.00 20.50 30.00 22.00 30.00 26.50 30.00 245 26.19 19.63 2.50 x 2.50 0.56 26.06 19.50 30.25 20.00 30.25 21.25 30.25 22.50 30.25 24.00 30.25 28.75 30.25 270 28.88 21.56 2.50 x 2.50 0.56 28.50 21.44 33.00 22.00 33.00 23.50 33.00 24.75 33.00 26.25 33.00 31.50 33.00 300 32.00 23.94 3.00 x 3.00 0.81 31.63 23.81 33.50 24.50 33.50 26.00 33.50 27.50 33.50 29.50 33.50 34.75 34.75 330 35.31 26.19 3.00 x 3.00 0.81 34.75 26.25 37.75 27.00 37.75 28.50 37.75 30.00 37.75 32.25 37.75 37.75 37.75 365 38.88 29.00 3.00 x 3.00 0.81 38.50 29.00 37.75 29.50 37.75 31.50 37.75 33.50 37.75 35.50 37.75 41.50 41.50 402 42.81 31.94 3.00 x 4.00 0.81 42.44 32.00 40.25 33.00 40.25 35.25 40.25 37.00 40.25 39.50 40.25 45.50 45.50 445 47.31 35.31 3.00 x 4.00 0.81 46.88 35.38 41.00 35.50 41.00 38.50 41.00 40.00 41.00 43.25 43.25 50.00 50.00 490 52.13 38.75 3.00 x 4.00 0.81 51.63 39.00 41.00 39.00 41.00 42.25 42.25 44.00 44.00 47.50 47.50 54.75 54.75 542 57.56 43.00 3.50 x 5.00 0.81 57.13 43.06 43.06 43.50 43.50 46.50 46.50 49.00 49.00 52.25 52.25 60.75 60.75 600 63.69 47.44 3.50 x 5.00 0.81 63.13 47.69 47.69 48.00 48.00 51.25 51.25 54.00 54.00 57.50 57.50 66.75 66.75 660 69.88 52.31 4.00 x 6.00 0.81 69.38 52.44 52.44 52.50 52.50 55.75 55.75 59.00 59.00 63.00 63.00 73.75 73.75 730 77.38 57.69 4.00 x 6.00 0.81 76.75 58.00 58.00 57.00 57.00 61.75 61.75 64.50 64.50 69.50 69.50 81.25 81.25 807 85.56 63.75 4.00 x 6.00 0.81 84.88 64.19 64.19 63.00 63.00 67.50 67.50 72.00 72.00 76.50 76.50 89.50 89.50 890 94.25 70.13 4.00 x 6.00 0.81 93.38 70.00 70.00 69.25 69.25 73.75 73.75 78.25 78.25 85.00 85.00 98.25 98.25 SIZE DX FR H A B C D ARR 9 ARR 1 ARR 9 HA HB HC HD HE HF H HH HP HQ 165 1.25 x 1.25 256T 24.25 10 10 12.13 23.13 27.88 41.13 13.13 22.50 18.69 15.13 14.19 13.38 12.56 11.75 19.44 182 1.25 x 1.25 286T 27.00 10 10 13.50 27.00 30.13 44.63 14.50 24.81 20.63 16.75 15.75 14.81 13.88 12.94 21.38 200 1.25 x 1.25 326T 29.00 10 10 14.50 29.00 32.50 47.50 15.81 27.06 22.44 18.38 17.38 16.31 15.25 14.19 23.19 222 1.25 x 1.25 326T 32.25 10 10 16.13 32.25 37.25 50.25 17.69 30.06 24.81 20.50 19.13 18.00 16.88 15.75 26.06 245 1.50 x 1.50 326T 34.50 7 7 17.25 34.50 40.63 52.13 19.50 33.25 27.50 22.50 21.13 19.88 18.63 17.38 28.50 270 1.50 x 1.50 365T 37.00 7 7 18.50 37.00 44.63 55.25 21.44 36.50 30.19 24.81 23.31 21.94 20.56 19.19 31.19 300 1.50 x 1.50 365T 42.00 7 7 21.00 42.00 49.50 58.63 23.81 40.38 33.31 27.50 25.81 24.31 22.81 21.31 34.81 330 1.50 x 1.50 405T 45.00 7 7 22.50 45.00 53.75 67.63 26.25 44.44 36.63 30.19 28.44 26.75 25.06 23.38 38.13 365 1.50 x 1.50 405T 49.00 7 7 24.50 49.00 58.00 70.38 29.00 48.94 40.19 33.63 31.56 29.69 27.81 25.94 41.69 402 2.00 x 2.00 405T 52.50 7 7 26.25 52.50 64.00 81.13 32.00 54.19 44.63 37.06 34.75 32.69 30.63 28.56 46.63 445 2.00 x 2.00 405T 56.50 7 7 28.25 56.50 70.38 84.50 35.38 59.75 49.13 41.00 38.31 36.06 33.81 31.56 51.13 490 2.00 x 2.00 405T 61.50 7 7 30.75 61.50 75.75 87.88 39.00 65.69 53.94 44.94 42.25 39.75 37.25 34.75 55.94 542 2.50 x 2.50 405T 67.00 7 7 33.50 67.00 82.00 93.75 43.06 72.81 59.88 49.88 46.75 44.00 41.25 38.50 62.38 59.75 600 2.50 x 2.50 405T 74.00 7 7 37.00 74.00 89.50 98.25 47.69 80.38 66.00 55.06 51.75 48.69 45.63 42.56 68.50 66.25 660 2.50 x 2.50 405T 80.00 7 7 40.00 80.00 98.38 105.13 52.44 88.13 72.19 60.50 56.88 53.44 50.00 46.56 75.69 72.38 730 2.50 x 2.50 405T 88.00 7 7 44.00 88.00 106.75 110.50 58.00 97.38 79.69 67.00 62.94 59.19 55.44 51.69 83.19 79.75 807 2.50 x 2.50 405T 96.50 7 7 48.25 96.50 115.75 116.50 64.19 107.50 87.88 74.13 69.56 65.44 61.31 57.19 91.38 88.38 890 2.50 x 2.50 405T 107.50 7 7 53.75 107.50 125.13 122.88 70.00 117.75 96.56 81.63 76.69 72.13 67.56 63.00 100.06 97.00 SIZE J K KL L P SE KS M N Q SD ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 165 10.25 7.81 3.50 4.25 0.38 x 0.19 9.50 22.75 8.75 0.88 23.19 37.19 8.69 1.69 4.00 4.75 182 11.38 8.44 4.50 5.00 0.38 x 0.19 10.50 25.00 9.63 0.88 25.81 40.81 9.63 1.69 5.00 5.50 200 12.06 9.13 4.50 6.00 0.50 x 0.25 11.50 26.50 10.63 0.88 27.50 44.25 10.56 1.94 5.00 6.75 222 12.94 10.25 5.00 6.00 0.50 x 0.25 13.75 26.75 11.50 1.13 31.38 45.63 11.75 1.94 5.50 6.75 245 13.94 11.19 6.00 6.00 0.50 x 0.25 15.25 26.75 12.63 1.13 34.81 46.56 12.94 2.19 6.50 6.75 270 15.38 12.19 6.00 6.50 0.50 x 0.25 17.25 27.88 13.88 1.13 37.81 48.94 14.25 2.19 6.50 7.00 300 17.06 13.63 7.00 6.50 0.63 x 0.31 19.00 28.13 15.63 1.38 42.25 50.63 15.81 2.44 7.75 7.00 330 18.19 14.75 7.00 7.50 0.63 x 0.31 21.00 34.88 17.13 1.38 45.38 59.50 17.50 2.44 7.75 8.00 365 19.56 16.13 7.00 7.50 0.63 x 0.31 22.50 34.88 18.63 1.38 48.25 60.88 19.25 2.69 7.75 8.00 402 22.06 18.13 8.00 7.50 0.75 x 0.38 24.00 41.13 20.38 1.88 52.75 69.13 21.25 2.94 8.75 8.00 445 24.81 19.81 8.00 7.50 0.88 x 0.44 27.00 41.13 22.38 1.88 57.69 70.81 23.50 3.44 9.00 8.00 490 26.50 21.50 9.00 7.50 1.00 x 0.50 29.00 41.13 24.88 1.88 62.38 72.50 25.88 3.94 10.00 8.00 542 28.63 24.13 9.00 7.50 1.00 x 0.50 29.50 41.25 27.13 2.38 65.50 75.25 28.63 3.94 10.00 8.00 600 31.88 26.38 9.50 7.50 1.00 x 0.50 32.50 41.25 30.13 2.38 71.25 77.50 31.69 3.94 10.50 8.00 660 34.31 29.31 10.00 7.50 1.00 x 0.50 35.00 41.75 32.63 2.88 77.19 80.94 34.75 3.94 11.00 8.00 730 37.00 32.00 10.50 7.50 1.00 x 0.50 38.00 41.75 36.63 2.88 83.38 83.63 38.50 4.44 11.50 8.00 807 41.00 35.00 10.50 7.50 1.25 x 0.63 41.00 41.75 40.38 2.88 89.38 86.63 42.63 4.94 11.50 8.00 890 45.19 38.19 11.00 7.50 1.25 x 0.63 44.00 41.75 45.88 2.88 96.06 89.81 46.94 4.94 12.00 8.00 BC14952F ARR. 1 NOTES: BC14955E ARR. 9 1. Punched outlet flanges are included on all discharges per AC14987, or for 'DBD' AC14868. 2. Optional punched inlet per AS363. 3. 'CW' rotation is shown. 'CCW' rotation is similar but opposite. 4. For fans with inlet box at 90 o or 270 o use 'BAU' discharge dimension 'DF' for centerline height. 5. 'FR' equals maximum motor frame. Standard Arr. 9 motor location is on the left for "CW" rotation units and on the right for "CCW" rotation units (unless otherwise specified). WWW.TCF.COM 37

DIMENSIONAL DATA Arrangements 1 (Sizes 222-890) & 9 (Sizes 222-542), Class 22 HE HA NOTE 1 P J HQ A A. SIDES DISCH Q HC KL DX DISCH. FLANE KS KWY SIZE OUTSIDE HOUSIN OUTSIDE HOUSIN A B C DC NOTE 5 SE SD DIA. SHAFT B A. SCROLL BA BASE ANLES O.D. INLET C H N CW THD H HP HD HH HQ HC H HB HF HA HE HE HB HA HH H DA DD DE DF D CW DBD CW TAU CW UBD CW BAU CW BHD M M DISCH J NOTE 2 WITH OPTIONAL FLANED INLET K K FAN HS FAN SHAFT L BH DIA. BASE HOLES FOUNDATION PLAN (FOR DBD SEE NOTE 1) 38 TWIN CITY FAN - CATALO 400

DIMENSIONAL DATA DA DC DD DE SIZE A B BA BH C ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 DF D SEE NOTE 4 ARR 1 ARR 9 ARR 1 ARR 9 222 23.81 17.88 3.00 x 3.00 0.56 23.75 17.69 33.75 18.00 33.75 19.25 33.75 20.50 33.75 22.00 33.75 26.50 33.75 245 26.19 19.63 3.00 x 3.00 0.56 26.06 19.50 34.00 20.00 34.00 21.25 34.00 22.50 34.00 24.00 34.00 28.75 34.00 270 28.88 21.56 3.00 x 3.00 0.56 28.50 21.44 34.00 22.00 34.00 23.50 34.00 24.75 34.00 26.25 34.00 31.50 34.00 300 32.00 23.94 3.00 x 4.00 0.81 31.63 23.81 34.75 24.50 34.75 26.00 34.75 27.50 34.75 29.50 34.75 34.75 34.75 330 35.44 26.31 3.00 x 4.00 0.81 34.75 26.25 37.75 27.00 37.75 28.50 37.75 30.00 37.75 32.25 37.75 37.75 37.75 365 39.00 29.13 3.00 x 4.00 0.81 38.50 29.00 41.00 29.50 41.00 31.50 41.00 33.50 41.00 35.50 41.00 41.50 41.50 402 42.94 32.06 3.50 x 5.00 0.81 42.44 32.00 41.50 33.00 41.50 35.25 41.50 37.00 41.50 39.50 41.50 46.00 46.00 445 47.44 35.44 4.00 x 6.00 0.81 46.88 35.38 42.50 35.50 42.50 38.50 42.50 40.00 42.50 43.25 43.25 50.50 50.50 490 52.25 38.88 4.00 x 6.00 0.81 51.63 39.00 42.50 39.00 42.50 42.25 42.50 44.00 44.00 47.50 47.50 55.75 55.25 542 57.69 43.13 4.00 x 6.00 0.81 57.13 43.06 43.50 43.50 43.50 46.50 46.50 49.00 49.00 52.25 52.25 61.25 61.25 600 63.81 47.56 4.00 x 6.00 0.81 63.13 47.69 48.00 51.25 54.00 57.50 67.25 660 70.00 52.44 4.00 x 6.00 0.81 69.38 52.44 52.50 55.75 59.00 63.00 73.75 730 77.50 57.81 4.00 x 6.00 0.81 76.75 58.00 57.00 61.75 64.50 69.50 81.25 807 85.69 63.88 4.00 x 6.00 0.81 84.88 64.19 63.00 67.50 72.00 76.50 89.50 890 94.38 70.25 4.00 x 6.00 0.81 93.38 70.00 69.25 73.75 78.25 85.00 98.25 SIZE DX FR H A B C ARR 9 ARR 1 ARR 9 HA HB HC HD HE HF H HH HP HQ 222 2.00 x 2.00 365T 32.25 7 7 16.13 38.38 52.50 17.69 30.63 25.63 20.56 19.19 18.06 16.94 15.81 26.63 245 2.00 x 2.00 365T 34.50 7 7 17.25 41.63 54.00 19.50 33.56 28.00 22.50 21.13 19.88 18.63 17.38 29.00 270 2.00 x 2.00 365T 38.00 7 7 19.00 45.63 56.00 21.44 36.88 30.69 24.81 23.31 21.94 20.56 19.19 31.69 300 2.00 x 2.00 365T 42.00 7 7 21.00 51.50 60.38 23.81 40.75 33.81 27.50 25.81 24.31 22.81 21.31 35.81 330 2.00 x 2.00 405T 45.00 0.25 0.25 22.50 55.88 69.38 26.25 44.88 37.19 30.25 28.50 26.81 25.13 23.44 39.19 365 2.00 x 2.00 405T 49.00 0.25 0.25 24.50 60.13 78.25 29.00 49.31 40.75 33.69 31.63 29.75 27.88 26.00 42.75 402 2.00 x 2.00 405T 52.50 0.25 0.25 26.25 66.13 83.25 32.00 54.25 44.69 37.13 34.81 32.75 30.69 28.63 47.69 445 2.00 x 2.00 405T 57.50 0.25 0.25 28.75 74.50 88.25 35.38 59.81 49.19 41.06 38.38 36.13 33.88 31.63 53.19 490 2.00 x 2.00 405T 62.50 0.25 0.25 31.25 79.88 91.63 39.00 65.75 54.00 45.00 42.31 39.81 37.31 34.81 58.00 542 2.50 x 2.50 405T 68.00 0.25 0.25 34.00 84.13 95.88 43.06 72.81 59.94 49.94 46.81 44.06 41.31 38.56 63.44 60.38 600 2.50 x 2.50 74.00 0.25 0.25 37.00 91.63 47.69 80.44 66.06 55.13 51.81 48.75 45.69 42.63 69.56 66.38 660 2.50 x 2.50 81.00 0.25 0.25 40.50 98.50 52.44 88.19 72.25 60.56 56.94 53.50 50.06 46.63 75.75 73.00 730 2.50 x 2.50 89.00 0.25 0.25 44.50 106.88 58.00 97.38 79.75 67.06 63.00 59.25 55.50 51.75 83.25 80.38 807 2.50 x 2.50 96.50 0.25 0.25 48.25 115.88 64.19 107.56 87.94 74.19 69.63 65.50 61.38 57.25 91.44 88.50 890 2.50 x 2.50 107.50 0.25 0.25 53.75 125.25 70.00 117.81 96.63 81.69 76.75 72.19 67.63 63.06 100.13 97.13 SIZE J K KL L P SE KS M N Q SD ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 ARR 1 ARR 9 222 13.00 10.56 6.00 7.00 0.63 x 0.31 14.00 28.13 11.25 1.38 32.94 48.31 11.75 2.44 6.50 7.75 245 13.94 11.44 6.50 7.00 0.63 x 0.31 15.50 27.88 12.38 1.38 36.06 49.19 12.94 2.44 7.25 8.00 270 15.38 12.44 7.50 6.50 0.63 x 0.31 17.50 27.88 13.63 1.38 40.06 49.19 14.25 2.44 8.25 7.00 300 17.06 14.13 8.00 6.50 0.63 x 0.31 19.50 28.38 15.13 1.88 44.25 51.38 15.81 2.69 8.75 7.00 330 18.25 15.31 9.00 7.50 0.75 x 0.38 21.50 35.00 16.63 1.88 48.44 60.19 17.50 2.94 9.75 8.00 365 19.63 16.69 9.00 7.50 0.75 x 0.38 23.00 41.13 18.63 1.88 51.56 67.69 19.25 2.94 10.00 8.00 402 22.13 18.69 10.00 7.50 0.88 x 0.44 24.50 41.63 19.88 2.38 56.06 70.19 21.25 3.44 11.00 8.00 445 24.88 20.88 10.00 7.50 1.00 x 0.50 28.00 41.75 21.38 2.88 61.75 72.50 23.50 3.94 11.00 8.00 490 26.56 22.56 11.00 7.50 1.00 x 0.50 30.00 41.75 23.88 2.88 66.44 74.19 25.88 3.94 12.00 8.00 542 28.69 24.69 11.00 7.50 1.00 x 0.50 30.00 41.75 26.63 2.88 68.56 76.31 28.63 4.44 12.00 8.00 600 31.94 26.94 12.00 1.25 x 0.63 33.00 29.63 2.88 74.81 31.69 4.94 13.00 660 34.38 29.38 12.00 1.25 x 0.63 35.00 32.63 2.88 79.25 34.75 4.94 13.00 730 37.06 32.06 13.50 1.25 x 0.63 38.00 36.63 2.88 86.44 38.50 4.94 14.50 807 41.06 35.06 13.50 1.25 x 0.63 41.00 40.38 2.88 92.44 42.63 4.94 14.50 890 45.25 38.25 14.00 1.25 x 0.63 44.00 45.88 2.88 99.13 46.94 4.94 15.00 BC14953E ARR. 1 BC14956E ARR. 9 NOTES: 1. Punched outlet flanges are included on all discharges per AC14988, or for 'DBD' AC14869. 2. Optional punched inlet per AS363. 3. 'CW' rotation is shown. 'CCW' rotation is similar but opposite. 4. For fans with inlet box at 90 o or 270 o use 'BAU' discharge dimension 'DF' for centerline height. 5. 'FR' equals maximum motor frame. Standard Arr. 9 motor location is on the left for "CW" rotation units and on the right for "CCW" rotation units (unless otherwise specified). WWW.TCF.COM 39

DIMENSIONAL DATA Arrangement 1, Class 26 HE HA P J NOTE 1 HQ A A. SIDES DISCH Q HC KL DX DISCH. FLANE KS KWY SIZE OUTSIDE HOUSIN OUTSIDE HOUSIN A B C DC SE SD DIA. SHAFT B A. SCROLL BA BASE ANLES O.D. INLET C N CW THD H H HP HE HB HD HH HQ HC H HA HB HF HH HA HE H DA DD HE DF D CW DBD CW TAU CW UBD CW BAU CW BHD DISCH J NOTE 2 WITH OPTIONAL FLANED INLET K K L M FAN HS FAN SHAFT M FOUNDATION PLAN (FOR DBD SEE NOTE 1) BH DIA. BASE HOLES 40 TWIN CITY FAN - CATALO 400

DIMENSIONAL DATA SIZE A B BA BH C DA DC DD DE SEE NOTE 4 DF D DX A 270 28.88 21.56 3.00 x 3.00 0.56 28.50 21.44 22.00 23.50 24.75 26.25 31.50 2.00 x 2.00 38.00 7 300 32.00 23.94 3.00 x 4.00 0.81 31.63 23.81 24.50 26.00 27.50 29.50 34.75 2.00 x 2.00 42.00 7 330 35.44 26.31 3.00 x 4.00 0.81 34.75 26.25 27.00 28.50 30.00 32.25 37.75 2.00 x 2.00 45.00 0.25 365 39.00 29.13 3.00 x 4.00 0.81 38.50 29.00 29.50 31.50 33.50 35.50 41.50 2.00 x 2.00 49.00 0.25 402 42.94 32.06 3.50 x 5.00 0.81 42.44 32.00 33.00 35.25 37.00 39.50 46.00 2.00 x 2.00 53.50 0.25 445 47.44 35.44 4.00 x 6.00 0.81 46.88 35.38 35.50 38.50 40.00 43.25 50.50 2.00 x 2.00 58.50 0.25 490 52.25 38.88 4.00 x 6.00 0.81 51.63 39.00 39.00 42.25 44.00 47.50 55.75 2.00 x 2.00 63.50 0.25 542 57.69 43.13 4.00 x 6.00 0.81 57.13 43.06 43.50 46.50 49.00 52.25 61.25 2.50 x 2.50 69.00 0.25 600 63.81 47.56 4.00 x 6.00 0.81 63.13 47.69 48.00 51.25 54.00 57.50 67.25 2.50 x 2.50 75.00 0.25 660 70.00 52.44 4.00 x 6.00 0.81 69.38 52.44 52.50 55.75 59.00 63.00 73.75 2.50 x 2.50 81.00 0.25 730 77.50 57.81 4.00 x 6.00 0.81 76.75 58.00 57.00 61.75 64.50 69.50 81.25 2.50 x 2.50 89.00 0.25 807 85.69 63.88 4.00 x 6.00 0.81 84.88 64.19 63.00 67.50 72.00 76.50 89.50 2.50 x 2.50 96.50 0.25 890 94.38 70.25 4.00 x 6.00 0.81 93.38 70.00 69.25 73.75 78.25 85.00 98.25 2.50 x 2.50 107.50 0.25 SIZE B C H HA HB HC HD HE HF H HH HP HQ J K KL 270 7 19.00 45.63 21.44 36.88 30.69 24.81 23.31 21.94 20.56 19.19 31.69 15.38 12.44 7.50 300 7 21.00 51.50 23.81 40.75 33.81 27.50 25.81 24.31 22.81 21.31 35.81 17.06 14.13 8.00 330 0.25 22.50 55.88 26.25 44.88 37.19 30.25 28.50 26.81 25.13 23.44 39.19 18.25 15.31 9.00 365 0.25 24.50 60.13 29.00 49.31 40.75 33.69 31.63 29.75 27.88 26.00 42.75 19.63 16.69 9.00 402 0.25 26.75 66.13 32.00 54.25 44.69 37.13 34.81 32.75 30.69 28.63 47.69 22.13 18.69 10.00 445 0.25 29.25 74.50 35.38 59.81 49.19 41.06 38.38 36.13 33.88 31.63 53.19 24.88 20.88 10.00 490 0.25 31.75 79.88 39.00 65.75 54.00 45.00 42.31 39.81 37.31 34.81 58.00 26.56 22.56 11.00 542 0.25 34.50 84.13 43.06 72.81 59.94 49.94 46.81 44.06 41.31 38.56 63.44 60.38 28.69 24.69 11.00 600 0.25 37.50 91.63 47.69 80.44 66.06 55.13 51.81 48.75 45.69 42.63 69.56 66.38 31.94 26.94 12.00 660 0.25 40.50 98.50 52.44 88.19 72.25 60.56 56.94 53.50 50.06 46.63 75.75 73.00 34.38 29.38 12.00 730 0.25 44.50 106.88 58.00 97.38 79.75 67.06 63.00 59.25 55.50 51.75 83.25 80.38 37.06 32.06 13.50 807 0.25 48.25 115.88 64.19 107.56 87.94 74.19 69.63 65.50 61.38 57.25 91.44 88.50 41.06 35.06 13.50 890 0.25 53.75 125.25 70.00 117.81 96.63 81.69 76.75 72.19 67.63 63.06 100.13 97.13 45.25 38.25 14.00 SIZE KS L M N P Q SD SE 270 0.75 x 0.38 17.50 13.63 1.38 40.06 14.25 2.94 8.25 300 0.75 x 0.38 19.50 15.13 1.88 44.25 15.81 2.94 8.75 330 0.75 x 0.38 21.50 16.63 1.88 48.44 17.50 2.94 9.75 365 0.88 x 0.44 23.00 18.63 1.88 51.56 19.25 3.44 10.00 402 1.00 x 0.50 24.50 19.88 2.38 56.06 21.25 3.94 11.00 445 1.00 x 0.50 28.00 21.38 2.88 61.75 23.50 3.94 11.00 490 1.00 x 0.50 30.00 23.88 2.88 66.44 25.88 4.44 12.00 542 1.25 x 0.63 30.00 26.63 2.88 68.56 28.63 4.94 12.00 600 1.25 x 0.63 33.00 29.63 2.88 74.81 31.69 4.94 13.00 660 1.25 x 0.63 35.00 32.63 2.88 79.25 34.75 4.94 13.00 730 1.25 x 0.63 38.00 36.63 2.88 86.44 38.50 5.44 14.50 807 1.25 x 0.63 41.00 40.38 2.88 92.44 42.63 5.44 14.50 890 1.75 x 0.88 44.00 45.88 2.88 99.13 46.94 6.94 15.00 AC14954D NOTES: 1. Punched outlet flanges are included on all discharges per AC14988, or for 'DBD' AC14869. 2. Optional punched inlet per AS363. 3. 'CW' rotation is shown. 'CCW' rotation is similar but opposite. 4. For fans with inlet box at 90 o or 270 o use 'BAU' discharge dimension 'DF' for centerline height. WWW.TCF.COM 41

DIMENSIONAL DATA Arrangements 9F, Class 14 HE HA P J HQ A A. SIDES DISCH Q HC KL DX DISCH. FLANE KS KWY SIZE OUTSIDE HOUSIN OUTSIDE HOUSIN A B C SE O.D. INLET NOTE 3 DC SD DIA. SHAFT B A. SCROLL BA BASE ANLES V C CW THD H N H HP HD HH HQ HC H HB HF HA HE HE HB HA HH H DA DD DE DF D CW DBD CW TAU CW UBD CW BAU CW BHD J S M M AH DBD ONLY DISCH NOTE 2 WITH OPTIONAL FLANED INLET K K L T FAN HS FAN SHAFT FOUNDATION PLAN (FOR DBD SEE NOTE 1) MOTOR LOCATION L (LEFT) SHOWN BH DIA. BASE HOLES 42 TWIN CITY FAN - CATALO 400

DIMENSIONAL DATA SIZE A AH B BA BH C DA DC DD DE DF D DX FR A 165 17.44 9.75 13.19 1.50 x 2.00 0.44 17.75 13.13 13.50 14.50 15.25 16.25 19.50 1.00 x 1.00 215T 24.25 14 182 19.38 10.81 14.56 1.50 x 2.00 0.44 19.50 14.50 14.75 15.75 16.75 17.75 21.50 1.25 x 1.25 256T 26.00 12 200 21.19 11.63 15.94 1.50 x 2.00 0.56 21.38 15.81 16.25 17.25 18.25 19.25 23.50 1.25 x 1.25 256T 28.00 12 222 23.56 12.88 17.69 2.00 x 2.00 0.56 23.75 17.69 18.00 19.25 20.50 22.00 26.00 1.25 x 1.25 256T 31.25 12 245 25.94 14.13 19.44 2.00 x 2.00 0.56 26.06 19.50 20.00 21.25 22.50 24.00 28.25 1.25 x 1.25 286T 33.50 12 270 28.63 15.56 21.38 2.00 x 2.00 0.56 28.50 21.44 22.00 23.50 24.75 26.25 31.00 1.50 x 1.50 286T 36.00 12 300 31.81 17.25 23.81 2.50 x 2.50 0.56 31.63 23.81 24.50 26.00 27.50 29.50 34.25 1.50 x 1.50 286T 41.00 10 330 35.13 19.06 26.06 2.50 x 2.50 0.56 34.75 26.25 27.00 28.50 30.00 32.25 37.25 1.50 x 1.50 326T 44.00 10 365 38.69 21.13 28.88 2.50 x 2.50 0.56 38.50 29.00 29.50 31.50 33.50 35.50 41.00 1.50 x 1.50 326T 48.00 10 402 42.63 23.31 31.81 3.00 x 3.00 0.81 42.44 32.00 33.00 35.25 37.00 39.50 45.50 1.50 x 1.50 365T 52.50 10 445 47.13 25.81 35.19 3.00 x 3.00 0.81 46.88 35.38 35.50 38.50 40.00 43.25 50.00 1.50 x 1.50 365T 56.50 10 490 51.94 28.13 38.63 3.00 x 3.00 0.81 51.63 39.00 39.00 42.25 44.00 47.50 54.75 2.00 x 2.00 405T 61.50 10 542 57.38 31.81 42.88 3.00 x 4.00 0.81 57.13 43.06 43.50 46.50 49.00 52.25 60.25 2.00 x 2.00 405T 67.00 10 600 63.50 34.94 47.31 3.00 x 4.00 0.81 63.13 47.69 48.00 51.25 54.00 57.50 66.25 2.00 x 2.00 445T 73.00 10 660 69.69 39.13 52.19 3.50 x 5.00 0.81 69.38 52.44 52.50 55.75 59.00 63.00 73.25 2.50 x 2.50 445T 80.00 10 730 77.25 42.63 57.56 3.50 x 5.00 0.81 76.75 58.00 57.00 61.75 64.50 69.50 80.75 2.50 x 2.50 445T 88.00 10 SIZE B C H HA HB HC HD HE HF H HH HP HQ J K KL KS 165 14 12.13 37.00 13.13 22.25 18.38 15.06 14.13 13.31 12.50 11.69 19.38 10.19 7.75 3.00 0.25 x 0.13 182 14 13.00 43.88 14.50 24.81 20.56 16.69 15.69 14.75 13.81 12.88 21.31 11.38 8.44 3.50 0.38 x 0.19 200 14 14.00 45.25 15.81 27.00 22.38 18.38 17.31 16.25 15.19 14.13 23.13 12.06 9.13 3.50 0.38 x 0.19 222 14 15.63 47.00 17.69 30.00 24.75 20.44 19.06 17.94 16.81 15.69 25.50 12.94 10.00 4.00 0.38 x 0.19 245 14 16.75 51.25 19.50 33.00 27.13 22.38 21.00 19.75 18.50 17.25 27.88 13.81 10.88 4.50 0.50 x 0.25 270 14 18.00 53.13 21.44 36.44 30.06 24.69 23.19 21.81 20.44 19.06 30.56 15.25 11.81 4.50 0.50 x 0.25 300 14 20.50 56.63 23.81 40.31 33.25 27.44 25.75 24.25 22.75 21.25 34.25 17.00 13.31 5.00 0.50 x 0.25 330 12 22.00 60.31 26.25 44.44 36.56 30.13 28.38 26.69 25.00 23.31 37.56 18.13 14.44 5.00 0.50 x 0.25 365 12 24.00 63.06 29.00 48.88 40.13 33.50 31.50 29.63 27.75 25.88 41.13 19.50 15.81 5.00 0.63 x 0.31 402 12 26.25 68.81 32.00 53.81 44.06 37.00 34.69 32.63 30.56 28.50 45.56 22.00 17.56 5.00 0.63 x 0.31 445 12 28.25 72.19 35.38 59.38 48.56 40.88 38.25 36.00 33.75 31.50 50.06 24.69 19.25 5.50 0.63 x 0.31 490 12 30.75 81.19 39.00 65.69 53.88 44.88 42.19 39.69 37.19 34.69 54.88 26.38 20.94 5.50 0.75 x 0.38 542 12 33.50 87.44 43.06 72.38 59.31 49.75 46.69 43.94 41.19 38.44 61.31 59.75 28.50 23.56 6.00 0.88 x 0.44 600 12 36.50 98.44 47.69 80.00 65.44 55.00 51.69 48.63 45.56 42.50 67.44 65.75 31.75 25.81 6.00 0.88 x 0.44 660 12 40.00 105.31 52.44 88.06 72.13 60.38 56.81 53.38 49.94 46.50 74.63 72.25 34.25 28.75 7.00 1.00 x 0.50 730 10 44.00 110.69 58.00 97.31 79.63 66.94 62.88 59.13 55.38 51.63 82.13 79.75 36.94 31.44 7.50 1.00 x 0.50 SIZE L M N P Q S SD SE T V 165 16.75 8.75 0.88 30.13 8.69 23.88 1.19 3.75 15.00 33.50 182 21.75 9.63 0.88 36.31 9.63 27.75 1.44 4.25 19.75 38.50 200 21.75 10.63 0.88 37.00 10.56 27.75 1.44 4.25 19.75 39.50 222 21.75 11.75 0.88 38.38 11.75 27.75 1.69 4.75 19.75 40.63 245 24.25 12.88 0.88 42.25 12.94 30.25 1.94 5.25 22.25 44.25 270 24.25 14.13 0.88 43.19 14.25 30.25 1.94 5.25 22.25 45.50 300 24.50 15.88 1.13 45.44 15.81 30.50 2.19 5.75 22.25 47.50 330 27.00 17.38 1.13 49.06 17.50 34.38 2.19 5.75 24.50 53.13 365 27.00 18.88 1.13 50.44 19.25 34.38 2.44 5.75 24.50 54.63 402 29.00 20.88 1.38 54.19 21.25 38.88 2.44 5.75 26.25 61.13 445 29.00 22.88 1.38 56.38 23.50 38.88 2.69 6.25 26.25 63.13 490 34.50 25.38 1.38 63.56 25.88 44.50 2.94 6.25 31.75 71.25 542 35.00 27.63 1.88 67.19 28.63 45.00 3.44 6.75 31.75 74.00 600 41.50 30.63 1.88 75.94 31.69 48.50 3.44 6.75 38.25 80.50 660 42.00 33.13 2.38 80.38 34.75 48.50 3.94 7.75 38.25 83.00 730 42.00 37.13 2.38 83.56 38.50 48.50 3.94 8.25 38.25 87.00 AC17015D NOTES: 1. Punched outlet flanges are included on all discharges per AC14986, or for 'DBD' AC17016. 2. Optional punched inlet per AS363. 3. 'FR' equals maximum motor frame. Standard Arr. 9F motor location is on the left for "CW" rotation units and on the right for "CCW" rotation units (unless otherwise specified). WWW.TCF.COM 43

DIMENSIONAL DATA Arrangement 9F, Class 17 HE HA NOTE 1 P J HQ A A. SIDES DISCH Q HC KL DX DISCH. FLANE KS KWY SIZE OUTSIDE HOUSIN OUTSIDE HOUSIN A B C SE O.D. INLET NOTE 3 DC SD DIA. SHAFT B A. SCROLL BA BASE ANLES C CW THD H N H HP HD HH HQ HC H HB HF HA HE HE HB HA HH H DA DD DE DF D CW DBD CW TAU CW UBD CW BAU D CW BHD J S DIA. BASE BH HOLES M M NOTE 2 DISCH K K L T MOTOR FAN HS FAN SHAFT WITH OPTIONAL FLANED INLET FOUNDATION PLAN (FOR DBD SEE NOTE 1) MOTOR LOCATION L (LEFT) SHOWN 44 TWIN CITY FAN - CATALO 400

DIMENSIONAL DATA SIZE A B BA BH C DA DC DD DE DF D DX FR 165 17.56 13.31 1.50 x 2.00 0.44 17.75 13.13 13.50 14.50 15.25 16.25 19.50 1.25 x 1.25 256T 24.25 182 19.50 14.63 2.00 x 2.00 0.56 19.50 14.50 14.75 15.75 16.75 17.75 22.00 1.25 x 1.25 286T 27.00 200 21.31 16.00 2.00 x 2.00 0.56 21.38 15.81 16.25 17.25 18.25 19.25 24.00 1.25 x 1.25 326T 29.00 222 23.69 17.75 2.50 x 2.50 0.56 23.75 17.69 18.00 19.25 20.50 22.00 26.50 1.25 x 1.25 326T 32.25 245 26.19 19.63 2.50 x 2.50 0.56 26.06 19.50 20.00 21.25 22.50 24.00 28.75 1.50 x 1.50 326T 34.50 270 28.88 21.56 2.50 x 2.50 0.56 28.50 21.44 22.00 23.50 24.75 26.25 31.50 1.50 x 1.50 365T 37.00 300 32.00 23.94 3.00 x 3.00 0.81 31.63 23.81 24.50 26.00 27.50 29.50 34.75 1.50 x 1.50 365T 42.00 330 35.31 26.19 3.00 x 3.00 0.81 34.75 26.25 27.00 28.50 30.00 32.25 37.75 1.50 x 1.50 365T 45.00 365 38.88 29.00 3.00 x 3.00 0.81 38.50 29.00 29.50 31.50 33.50 35.50 41.50 1.50 x 1.50 405T 49.00 402 42.81 31.94 3.00 x 4.00 0.81 42.44 32.00 33.00 35.25 37.00 39.50 45.50 2.00 x 2.00 445T 52.50 445 47.31 35.31 3.00 x 4.00 0.81 46.88 35.38 35.50 38.50 40.00 43.25 50.00 2.00 x 2.00 445T 56.50 490 52.13 38.75 3.00 x 4.00 0.81 51.63 39.00 39.00 42.25 44.00 47.50 54.75 2.00 x 2.00 445T 61.50 542 57.56 43.00 3.50 x 5.00 0.81 57.13 43.06 43.50 46.50 49.00 52.25 60.75 2.50 x 2.50 445T 67.00 600 63.69 47.44 3.50 x 5.00 0.81 63.13 47.69 48.00 51.25 54.00 57.50 66.75 2.50 x 2.50 445T 74.00 660 69.88 52.31 4.00 x 6.00 0.81 69.38 52.44 52.50 55.75 59.00 63.00 73.75 2.50 x 2.50 445T 80.00 730 77.38 57.69 4.00 x 6.00 0.81 76.75 58.00 57.00 61.75 64.50 69.50 81.25 2.50 x 2.50 445T 88.00 807 85.56 63.75 4.00 x 6.00 0.81 84.88 64.19 63.00 67.50 72.00 76.50 89.50 2.50 x 2.50 445T 96.50 890 94.25 70.13 4.00 x 6.00 0.81 93.38 70.00 69.25 73.75 78.25 85.00 98.25 2.50 x 2.50 445T 107.50 SIZE A B C D H HA HB HC HD HE HF H HH HP HQ 165 10 10 12.13 23.13 43.63 13.13 22.50 18.69 15.13 14.19 13.38 12.56 11.75 19.44 182 10 10 13.50 27.00 47.13 14.50 24.81 20.63 16.75 15.75 14.81 13.88 12.94 21.38 200 10 10 14.50 29.00 48.94 15.81 27.06 22.44 18.38 17.38 16.31 15.25 14.19 23.19 222 10 10 16.13 32.25 51.69 17.69 30.06 24.81 20.50 19.13 18.00 16.88 15.75 26.06 245 7 7 17.25 34.50 53.56 19.50 33.25 27.50 22.50 21.13 19.88 18.63 17.38 28.50 270 7 7 18.50 37.00 56.69 21.44 36.50 30.19 24.81 23.31 21.94 20.56 19.19 31.19 300 7 7 21.00 42.00 60.06 23.81 40.38 33.31 27.50 25.81 24.31 22.81 21.31 34.81 330 7 7 22.50 45.00 62.31 26.25 44.44 36.63 30.19 28.44 26.75 25.06 23.38 38.13 365 7 7 24.50 49.00 71.94 29.00 48.94 40.19 33.63 31.56 29.69 27.81 25.94 41.69 402 7 7 26.25 52.50 82.69 32.00 54.19 44.63 37.06 34.75 32.69 30.63 28.56 46.63 445 7 7 28.25 56.50 86.06 35.38 59.75 49.13 41.00 38.31 36.06 33.81 31.56 51.13 490 7 7 30.75 61.50 89.44 39.00 65.69 53.94 44.94 42.25 39.75 37.25 34.75 55.94 542 7 7 33.50 67.00 95.31 43.06 72.81 59.88 49.88 46.75 44.00 41.25 38.50 62.38 59.75 600 7 7 37.00 74.00 99.81 47.69 80.38 66.00 55.06 51.75 48.69 45.63 42.56 68.50 66.25 660 7 7 40.00 80.00 106.69 52.44 88.13 72.19 60.50 56.88 53.44 50.00 46.56 75.69 72.38 730 7 7 44.00 88.00 112.06 58.00 97.38 79.69 67.00 62.94 59.19 55.44 51.69 83.19 79.75 807 7 7 48.25 96.50 118.06 64.19 107.50 87.88 74.13 69.56 65.44 61.31 57.19 91.38 88.38 890 7 7 53.75 107.50 124.44 70.00 117.75 96.56 81.63 76.69 72.13 67.56 63.00 100.06 97.00 SIZE J K KL KS L M N P Q S SD SE T V 165 10.25 7.81 4.25 0.38 x 0.19 22.75 8.75 0.88 37.19 8.69 28.88 1.69 4.75 20.75 38.75 182 11.38 8.44 5.00 0.38 x 0.19 25.00 9.63 0.88 40.81 9.63 30.25 1.69 5.50 23.00 41.00 200 12.06 9.13 6.00 0.50 x 0.25 26.50 10.63 0.88 44.25 10.56 34.75 1.94 6.75 24.25 46.75 222 12.94 10.25 6.00 0.50 x 0.25 26.75 11.50 1.13 45.63 11.75 35.00 1.94 6.75 24.25 47.88 245 13.94 11.19 6.00 0.50 x 0.25 26.75 12.63 1.13 46.56 12.94 35.00 2.19 6.75 24.25 49.00 270 15.38 12.19 7.00 0.50 x 0.25 27.88 13.88 1.13 49.69 14.25 39.13 2.19 7.75 25.38 54.38 300 17.06 13.63 6.75 0.63 x 0.31 28.13 15.63 1.38 51.38 15.81 39.38 2.44 7.75 25.38 56.38 330 18.19 14.75 6.75 0.63 x 0.31 28.13 17.13 1.38 52.50 17.50 39.38 2.44 7.75 25.38 57.88 365 19.56 16.13 8.00 0.63 x 0.31 34.88 18.63 1.38 61.88 19.25 44.50 2.69 9.00 32.13 64.50 402 22.06 18.13 8.75 0.75 x 0.38 41.13 20.38 1.88 71.13 21.25 48.50 2.94 10.00 37.88 70.25 445 24.81 19.81 8.75 0.88 x 0.44 41.13 22.38 1.88 72.81 23.50 48.50 3.44 10.00 37.88 72.25 490 26.50 21.50 8.75 1.00 x 0.50 41.13 24.88 1.88 74.50 25.88 48.50 3.94 10.00 37.88 74.75 542 28.63 24.13 9.00 1.00 x 0.50 41.25 27.13 2.38 77.75 28.63 48.50 3.94 10.50 37.50 77.00 600 31.88 26.38 9.00 1.00 x 0.50 41.25 30.13 2.38 80.00 31.69 48.50 3.94 10.50 37.50 80.00 660 34.31 29.31 9.00 1.00 x 0.50 41.75 32.63 2.88 83.44 34.75 48.50 3.94 10.50 37.50 82.50 730 37.00 32.00 9.00 1.00 x 0.50 41.75 36.63 2.88 86.13 38.5 48.50 4.44 10.50 37.50 86.50 807 41.00 35.00 9.00 1.25 x 0.63 41.75 40.38 2.88 89.13 42.63 48.50 4.94 10.50 37.50 90.25 890 45.19 38.19 9.00 1.25 x 0.63 41.75 45.88 2.88 92.31 46.94 48.50 4.94 10.50 37.50 95.75 BC14957 NOTES: 1. Punched outlet flanges are included on all discharges per AC14987, or for 'DBD' AC14924. 2. Optional punched inlet per AS363. 3. 'FR' equals maximum motor frame. Standard Arr. 9F motor location is on the left for "CW" rotation units and on the right for "CCW" rotation units (unless otherwise specified). WWW.TCF.COM 45

DIMENSIONAL DATA Arrangement 9F, Class 22 HE HA NOTE 1 P J HQ A A. SIDES DISCH Q HC KL DX DISCH. FLANE KS KWY SIZE OUTSIDE HOUSIN OUTSIDE HOUSIN A B C SE O.D. INLET NOTE 3 DC SD DIA. SHAFT B A. SCROLL BA BASE ANLES C CW THD H N H HP HE HB HD HH HQ HC H HA HB HF HH HA HE H CW DBD DA DD CW TAU DE DF CW UBD CW BAU CW BHD D DISCH J NOTE 2 K K L T MOTOR S DIA. BASE BH HOLES M M FAN HS FAN SHAFT WITH OPTIONAL FLANED INLET FOUNDATION PLAN (FOR DBD SEE NOTE 1) MOTOR LOCATION L (LEFT) SHOWN 46 TWIN CITY FAN - CATALO 400

DIMENSIONAL DATA SIZE A B BA BH C DA DC DD DE DF D DX FR 222 23.81 17.88 3.00 x 3.00 0.56 23.75 17.69 18.00 19.25 20.50 22.00 26.50 2.00 x 2.00 365T 32.25 245 26.19 19.63 3.00 x 3.00 0.56 26.06 19.50 20.00 21.25 22.50 24.00 28.75 2.00 x 2.00 365T 34.50 270 28.88 21.56 3.00 x 3.00 0.56 28.50 21.44 22.00 23.50 24.75 26.25 31.50 2.00 x 2.00 365T 38.00 300 32.00 23.94 3.00 x 4.00 0.81 31.63 23.81 24.50 26.00 27.50 29.50 34.75 2.00 x 2.00 365T 42.00 330 35.44 26.31 3.00 x 4.00 0.81 34.75 26.25 27.00 28.50 30.00 32.25 37.75 2.00 x 2.00 405T 45.00 365 39.00 29.13 3.00 x 4.00 0.81 38.50 29.00 29.50 31.50 33.50 35.50 41.50 2.00 x 2.00 445T 49.00 402 42.94 32.06 3.50 x 5.00 0.81 42.44 32.00 33.00 35.25 37.00 39.50 46.00 2.00 x 2.00 445T 52.50 445 47.44 35.44 4.00 x 6.00 0.81 46.88 35.38 35.50 38.50 40.00 43.25 50.50 2.00 x 2.00 445T 57.50 490 52.25 38.88 4.00 x 6.00 0.81 51.63 39.00 39.00 42.25 44.00 47.50 55.25 2.00 x 2.00 445T 62.50 542 57.69 43.13 4.00 x 6.00 0.81 57.13 43.06 43.50 46.50 49.00 52.25 61.25 2.50 x 2.50 445T 68.00 SIZE A B C H HA HB HC HD HE HF H HH HP HQ 222 7 7 16.13 53.94 17.69 30.63 25.63 20.56 19.19 18.06 16.94 15.81 26.63 245 7 7 17.25 55.44 19.50 33.56 28.00 22.50 21.13 19.88 18.63 17.38 29.00 270 7 7 19.00 57.44 21.44 36.88 30.69 24.81 23.31 21.94 20.56 19.19 31.69 300 7 7 21.00 61.81 23.81 40.75 33.81 27.50 25.81 24.31 22.81 21.31 35.81 330 0.25 0.25 22.50 70.94 26.25 44.88 37.19 30.25 28.50 26.81 25.13 23.44 39.19 365 0.25 0.25 24.50 79.81 29.00 49.31 40.75 33.69 31.63 29.75 27.88 26.00 42.75 402 0.25 0.25 26.25 84.81 32.00 54.25 44.69 37.13 34.81 32.75 30.69 28.63 47.69 445 0.25 0.25 28.75 89.81 35.38 59.81 49.19 41.06 38.38 36.13 33.88 31.63 53.19 490 0.25 0.25 31.25 93.19 39.00 65.75 54.00 45.00 42.31 39.81 37.31 34.81 58.00 542 0.25 0.25 34.00 97.44 43.06 72.81 59.94 49.94 46.81 44.06 41.31 38.56 63.44 60.38 SIZE J K KL KS L M N P Q S SD SE T V 222 13.00 10.56 7.00 0.63 x 0.31 28.13 11.25 1.38 48.31 11.75 39.38 2.44 7.75 25.38 52.00 245 13.94 11.44 7.00 0.63 x 0.31 27.88 12.38 1.38 49.19 12.94 39.38 2.44 8.00 25.13 53.13 270 15.38 12.44 7.00 0.63 x 0.31 27.88 13.63 1.38 50.19 14.25 39.38 2.44 8.00 25.13 54.38 300 17.06 14.13 7.00 0.63 x 0.31 28.38 15.13 1.88 52.38 15.81 39.88 2.69 8.00 25.13 56.38 330 18.25 15.31 8.25 0.75 x 0.38 35.00 16.63 1.88 61.69 17.50 45.00 2.94 9.50 31.75 63.00 365 19.63 16.69 8.75 0.75 x 0.38 41.13 18.63 1.88 69.69 19.25 48.50 2.94 10.00 37.88 68.50 402 22.13 18.69 8.75 0.88 x 0.44 41.63 19.88 2.38 72.19 21.25 48.50 3.44 10.00 37.88 69.75 445 24.88 20.88 9.00 1.00 x 0.50 41.75 21.38 2.88 75.00 23.50 48.50 3.94 10.50 37.50 71.25 490 26.56 22.56 9.00 1.00 x 0.50 41.75 23.88 2.88 76.69 25.88 48.50 3.94 10.50 37.50 73.75 542 28.69 24.69 9.00 1.00 x 0.50 41.75 26.63 2.88 78.81 28.63 48.50 4.44 10.50 37.50 76.50 BC14958E NOTES: 1. Punched outlet flanges are included on all discharges per AC14988, or for 'DBD' AC14925. 2. Optional punched inlet per AS363. 3. 'FR' equals maximum motor frame. Standard Arr. 9F motor location is on the left for "CW" rotation units and on the right for "CCW" rotation units (unless otherwise specified). WWW.TCF.COM 47

TYPICAL SPECIFICATIONS Model BCS Fans shall be Model BCS, Backward Curved High Pressure Blowers, as manufactured by Twin City Fan & Blower, Minneapolis, Minnesota. PERFORMANCE Fans shall be tested in accordance with ANSI/AMCA Standard 210 (air performance) and 300 (sound performance) in an AMCA accredited laboratory. Fans shall have a sharply rising pressure characteristic extending through the operating range and continuing to rise beyond the peak efficiency to ensure quiet and stable operation. Fans shall have a non-overloading design with self-limiting horsepower characteristics and shall reach a peak in the normal selection area. CONSTRUCTION Fan housings and bearing pedestals shall be of heavy-gauge, continuously welded construction. Housings with partially welded construction are not acceptable. Housings shall be suitably braced to prevent vibration or pulsation. Discharge flanges shall be provided for rigidity and duct connection. Discharge flanges are punched as standard. All units are furnished with lifting lugs. WHEEL BCS backward curved wheels shall be single thickness, designed for maximum efficiency and quiet operation, and shall be continuously welded to the rim and back plate. Partial welding is not acceptable on backward curved blades. All wheels shall be statically and dynamically balanced. SHAFT Shafts shall be AISI 1045 hot rolled steel, accurately turned, ground, polished and ring gauged for accuracy. Shafts shall be sized for the first critical speed of at least 1.43 times the maximum speed. BEARINS Bearings shall be heavy duty, grease lubricated, anti-friction ball or roller, self-aligning, pillow block type and selected for a minimum average bearing life (ABMA L-50) in excess of 200,000 hours at the maximum fan RPM. DRIVE Motor sheaves shall be cast iron, variable pitch on applications 20 HP and smaller, and fixed pitch on 25 HP and larger. Drives and belts shall be located external to the fan casing and rated for 150% of the required motor HP. FINISH AND COATIN The entire fan assembly, excluding the shaft, shall be thoroughly degreased and deburred before application of a rust-preventative primer. After the fan is completely assembled, a finish coat of paint shall be applied to the entire assembly. The fan shaft shall be coated with a petroleum-based rust protectant. Aluminum components shall be unpainted. ACCESSORIES When specified, accessories such as access doors, drains, inlet and outlet flanges, belt guards, shaft and bearing guards, outlet screens, outlet dampers, inlet vanes, spark resistant construction, split housings, high temperature construction, shaft seals, inlet boxes and shaft coolers shall be provided by Twin City Fan & Blower to maintain one-source responsibility. FACTORY RUN TEST All fans prior to shipment shall be completely assembled and test run as a unit at the specified operating speed or maximum RPM allowed for the particular construction type. Each wheel shall be statically and dynamically balanced in accordance with ANSI/AMCA 204-96 Balance Quality and Vibration Levels for Fans to Fan Application Category BV-3, Balance Quality rade 6.3. Balance readings shall be taken by electronic type equipment in the axial, vertical, and horizontal directions on each of the bearings. Records shall be maintained and a written copy shall be available upon request. UARANTEE The manufacturer shall guarantee the workmanship and materials for at least one (1) year from startup or eighteen (18) months from shipment, whichever occurs first. 48 TWIN CITY FAN - CATALO 400

ALTERNATIVE CENTRIFUAL FANS Model BC-SW Sizes 12.25" to 98.25" wheel diameters Performance Airflow to 277,500 CFM Static pressure to 20" w.g. Arrangements 1, 3, 3F, 3SI, 4, 7SI, 8, 9, 9F and 10 See Catalog 300 for more information 2.1 Full Line Catalog 2.2 Product Catalogs 2.3 Quick Ship Catalog 2.4 Installation & Maintenance 2.5 Case Studies 2.6 Flyers & Brochures 2.7 Fan Selector Software 2.11 Engineering Seminars 2.12 Engineering Resource uide 2.13 Photo Library 2.14 Video allery Model 2.8 Revit Drawings BAE-SW 2.9 Fan Calculator 2.10 Fan Engineering Topics Sizes 12.25" to 98.25" wheel diameters Performance 6.0 Find Local Representative 8.0 Member Area 7.0 Contact Us Product Specifications Airflow to 277,500 CFM Static pressure to 20" w.g. Arrangements 1, 3, 3F, 3SI, 4, 7SI, 8, 9, 9F and 10 See Catalog 370 for more information 2.1 Full Line Catalog 2.2 Product Catalogs 2.3 Quick Ship Catalog 2.4 Installation & Maintenance 2.5 Case Studies 2.6 Flyers & Brochures 2.7 Fan Selector Software 2.11 Engineering Seminars 2.12 Engineering Resource uide 2.13 Photo Library 2.14 Video allery Model 2.8 Revit Drawings BCFS 2.9 Fan Calculator 2.10 Fan Engineering Topics Sizes 16.5" to 60" wheel diameters Performance 6.0 Find Local Representative 8.0 Member Area 7.0 Contact Us Product Specifications Airflow to 151,000 CFM Static pressure to 34" w.g. Arrangements 1, 8, 9, 9F and 10 See Catalog 410 for more information 2.1 Full Line Catalog 2.2 Product Catalogs 2.3 Quick Ship Catalog 2.4 Installation & Maintenance 2.5 Case Studies 2.6 Flyers & Brochures 2.7 Fan Selector Software WWW.TCF.COM 49

INDUSTRIAL & COMMERCIAL FANS Centrifugal Fans Utility Sets Plenum & Plug Fans Inline Centrifugal Fans Mixed Flow Fans Tubeaxial & Vaneaxial Fans Propeller Wall Fans Propeller Roof Ventilators Centrifugal Roof & Wall Exhausters Ceiling Ventilators ravity Ventilators Duct Blowers Radial Bladed Fans Radial Tip Fans High Efficiency Industrial Fans Pressure Blowers Laboratory Exhaust Fans Filtered Supply Fans Mancoolers Fiberglass Fans Custom Fans TWIN CITY FAN & BLOWER WWW.TCF.COM 5959 Trenton Lane N Minneapolis, MN 55442 Phone: 763-551-7600 Fax: 763-551-7601 2015 Twin City Fan Companies, Ltd., Minneapolis, MN. All rights reserved. Catalog images cover the general appearance of Twin City Fan & Blower products at the time of publication and we reserve the right to make changes in design and construction at any time without notice.