TURNING AIR INTO SOLUTIONS. UPBLAST ROOF, WALL & KITCHEN EXHAUSTERS DCRU DCRUR DCRW DCRWR BCRU BCRUR BCRW BCRWR BCRUSH

TURNING AIR INTO SOLUTIONS. UPBLAST ROOF, WALL & KITCHEN EXHAUSTERS DCRU DCRUR DCRW DCRWR BCRU BCRUR BCRW BCRWR BCRUSH CATALOG 405 February 207

ROOF & WALL EXHAUSTERS Overview Roof & Wall Exhausters Twin City Fan & Blower s line of quiet, efficient, and economical spun aluminum centrifugal power roof and wall exhausters are designed to offer value and longlasting service in a wide variety of commercial and industrial ventilating applications. Typical Applications Include Agriculture, Automotive, Boilers, Brick, Car Wash, Commercial Plan & Spec, Composting, Ethanol, Food & Beverage, Foundry, General Manufacturing, Glass, HVAC, Institutional & Hospitality, Metal & Minerals, Microchip, OEM, Pharmaceutical, Power Generation, Recycling, Textile, Transportation Configurations Upblast and Wall Mounted, Direct Drive and Belt Driven Configurations Model DCRU With GridSmart TM EC Motor Now Available with GridSmartTM EC Motors see page 0 Wheel Types Backward Inclined Centrifugal Optional Construction Special Coatings, Spark Resistant, UL 705, UL 762, UL Smoke & Heat Certifications AMCA Sound/Air and FEG, UL 705 Listed for Electrical, UL 762 Listed for Grease-Laden Air, UL Listed for Smoke Control Systems, OSHPD Seismic Preapproval per OSP- 0395-0, Miami-Dade County Hurricane Rating per NOA No. 2-094.2 DCRU, DCRUR, DCRW, DCRWR, BCRU, BCRUR, BCRW, BCRWR, and BCRUSH models are CULUS 705 listed, for electrical, File No. E58680. DCRUR, DCRWR, BCRUR, and BCRWR models are CULUS 762 listed, for the exhaust of grease-laden air, File No. E58680. Model BCRUSH is UL listed for Smoke Control Systems, File No. E58680, 500 F for 4 hours and 000 F for 5 minutes. Twin City Fan & Blower certifies that the DCRU, DCRUR, DCRW, DCRWR, BCRU, BCRUR, BCRW, BCRWR, and BCRUSH Series shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 2 and AMCA Publication 3 and comply with the requirements of the AMCA Certified Ratings Program. Fan Efficiency Grade (FEG) certification applies to the models and sizes shown in the table on page. FS0 For complete product performance, drawings, and available accessories, Download Fan Selector 0 at tcf.com. 2 TWIN CITY FAN - CATALOG 405

ROOF & WALL EXHAUSTERS Overview Models General Exhaust DCRU (Direct Drive) 8.38" to 8.25" wheel diameters Airflow to 3,865 CFM Static pressure to.5" w.g. BCRU (Belt Driven) 2.25" to 49.2" wheel diameters Airflow to 29,00 CFM Static pressure to 3.25" w.g. DCRW (Direct Drive) 8.38" to 8.25" wheel diameters Airflow to 3,865 CFM Static pressure to.5" w.g. BCRW (Belt Driven) 2.25" to 3.5" wheel diameters Airflow to 5,00 CFM Static pressure to 3.25" w.g. Kitchen & Restaurant Fans DCRUR (Direct Drive) 8.38" to 8.25" wheel diameters Airflow to 3,865 CFM Static pressure to.5" w.g. General HVAC Roof & Wall Exhaust BCRUR (Belt Driven) 2.25" to 39.37" wheel diameters Airflow to 20,700 CFM Static pressure to 3.25" w.g. DCRWR (Direct Drive) 8.38" to 8.25" wheel diameters Airflow to 3,865 CFM Static pressure to.5" w.g. BCRWR (Belt Driven) 2.25" to 3.5" wheel diameters Airflow to 5,00 CFM Static pressure to 3.25" w.g. Smoke & Heat Exhaust BCRUSH (Belt Driven) 2.25" to 49.2" wheel diameters Airflow to 29,00 CFM Static pressure to 3.25" w.g. Restaurant Exhaust and Smoke & Heat (Emergency Smoke Control) Temperature Rating 500 F for 4 Hours 000 F for Hour WWW.TCF.COM 3

ROOF & WALL EXHAUSTERS General Exhaust Models DCRU & BCRU Models DCRU/BCRU are designed for roof mounted exhaust of clean air in applications where it is desirable to move the exhausted air up and away from the building, and where re-entry into the building supply air is possible. Model DCRU (Direct Drive) > Available in 4 sizes from size 07 to 80 > All sizes are speed controllable with ODP 5V motors > Available with EC Motor > Airflow to 3,865 CFM > Static pressure to.5" w.g. > AMCA Licensed for Sound, Air, and Fan Efficiency Grade > UL 705 listed Upblast Roof Exhausters Model BCRU (Belt Driven) > Available in 20 sizes from size 0 to 480, including seven high-pressure models > Airflow to 29,00 CFM > Static pressure to 3.25" w.g. > AMCA Licensed for Sound, Air, and Fan Efficiency Grade > UL 705 listed Models DCRW & BCRW Models DCRW/BCRW are designed for general exhaust of clean air in a wall-mounted, horizontal configuration. The wall-mounted fans are supplied with a heavy-duty 4" wall-mounting bracket. A 0" wall-mounting bracket is supplied when a gravity or motorized damper is utilized. Model DCRW (Direct Drive) > Available in 4 sizes from size 07 to 80 > All sizes are speed controllable with ODP 5V motors > Available with EC Motor > Airflow to 3,865 CFM > Static pressure to.5" w.g. > AMCA Licensed for Sound, Air, and Fan Efficiency Grade > UL 705 listed Wall Exhausters Model BCRW (Belt Driven) > Available in 6 sizes from size 0 to 300, including six high-pressure models > Airflow to 5,00 CFM > Static pressure to 3.25" w.g. > AMCA Licensed for Sound, Air, and Fan Efficiency Grade > UL 705 listed 4 TWIN CITY FAN - CATALOG 405

ROOF & WALL EXHAUSTERS Kitchen Exhaust Models DCRUR & BCRUR Models DCRUR/BCRUR are similar to the DCRU/BCRU, but are specifically designed for exhausting grease-laden air from kitchens, restaurants, cooking and dishwasher hoods. Twin City Fan & Blower also offers grease collection systems for kitchen and restaurant use. Model DCRUR (Direct Drive) > Available in 4 sizes from size 07 to 80 > All sizes are speed controllable with ODP 5V motors > Available with EC Motor > Airflow to 3,865 CFM > Static pressure to.5" w.g. > AMCA Licensed for Sound, Air, and Fan Efficiency Grade > UL 762 listed for Grease Laden Air Model BCRUR (Belt Driven) > Available in 8 sizes from size 0 to 360, including seven high-pressure models > Airflow to 20,700 CFM > Static pressure to 3.25" w.g. > AMCA Licensed for Sound, Air, and Fan Efficiency Grade > UL 762 listed for Grease Laden Air Upblast Roof Exhausters Models DCRWR & BCRWR Models DCRW/BCRW are designed for general exhaust of clean air in a wall-mounted, horizontal configuration. Model DCRWR (Direct Drive) > Available in 4 sizes from size 07 to 80 > All sizes are speed controllable with ODP 5V motors > Available with EC Motor > Airflow to 3,865 CFM > Static pressure to.5" w.g. > AMCA Licensed for Sound, Air, and Fan Efficiency Grade > UL 762 Listed Model BCRWR (Belt Driven) > Available in 6 sizes from size 0 to 300, including six high-pressure models > Airflow to 5,00 CFM > Static pressure to 3.25" w.g. > AMCA Licensed for Sound, Air, and Fan Efficiency Grade > UL 762 Listed Wall Exhausters WWW.TCF.COM 5

ROOF & WALL EXHAUSTERS Smoke & Heat Exhaust Model BCRUSH (Belt Driven) Model BCRUSH is specifically designed for smoke control applications where temperatures can reach 000 F and is designed to remove smoke from buildings in the event of a fire. The BCRUSH is UL listed for Smoke Control Systems, 500 F (260 C) for 4 hours and 000 F (537 C) for 5 minutes. > Available in sizes from 0 to 480 > Airflow to 29,00 CFM > Static pressure to 3.25" w.g. > AMCA Licensed for Sound, Air, & Fan Efficiency Grade > UL listed for Smoke Control Systems Upblast Roof Exhausters INSTALLATIONS Unique Features > Steel Wheel Provides rigidity when exposed to high temperature airstreams. > Multiple Cooling Tubes Provide cooling by drawing outside air into the motor and drive compartment. > Insulation Bottom of motor compartment and wireway are insulated with ceramic insulation rated to 2000 F. > Dual Groove Drive Oversized for added assurance. > Aluminum Nameplate For future identification. General HVAC Emergency Smoke Control Kitchen/Restaurant Exhaust 6 TWIN CITY FAN - CATALOG 405

CONSTRUCTION FEATURES Exploded View Motor Cover Provides complete protection for the motor and drive assembly, while allowing quick access to these components without the need for tools. Motor Housing Constructed from heavy-gauge aluminum for durability and appearance. Includes conduit tubing for routing electrical wiring through the outer shroud and into the motor compartment. Motors ODP, TEFC and explosion proof, single and three phase motors are carefully matched to the fan load. Vibration Isolation Motor and drive assembly is completely isolated from the fan supports by rubber isolators to reduce transmission of noise and vibration (all models except BCRUSH). Drive (Belt Driven) Adjustable pitch V-belt drives with cast iron sheaves and heat resistant belts are selected at 50% of the driven motor horsepower. Drives on model BCRUSH are dual groove as standard. Bearings (Belt Driven) Heavy-duty re-greaseable pillow block ball bearings are specifically designed for air handling applications to provide an average life (L-50) of 500,000 hours or more at maximum cataloged operating speeds. Shaft (Belt Driven) Precision ground and polished with a first critical speed of at least 25% of the fan s maximum operating speed. Galvanized Birdscreen Protects the wheel, inlet, and internal components from entry of birds. Optional on models BCRUR and DCRUR. Standard on 'WR' models. Wheel Quiet and efficient non-overloading, heavy-gauge wheels with backwardly curved blades are precisely matched to a deep spun venturi. All wheels are statically and dynamically balanced to ensure smooth and quiet operation. Fan Shroud Heavy-gauge spun aluminum with rolled bead edge provides rigidity. Motor cooling tubes are incorporated into the exterior of shroud to draw outside air into the motor and drive compartment. Curb Cap One-piece curb cap/inlet venturi assembly provides protection from weather. Pre-punched mounting holes provide easy and accurate attachment to the roof curb. Belt Driven Direct Drive WWW.TCF.COM 7

OPTIONS/ACCESSORIES 6 7 3 5 2 Backdraft Damper (DCRU, BCRU) with automatic or motorized operation, feature a felt seal on the edge of the damper blades for quiet operation. Damper frames are constructed of 9-gauge galvanized steel and blades are constructed of 26-gauge aluminum. Motorized dampers are recommended for low CFM applications to assure unrestricted airflow. Motorized dampers are available with 5, 208, 230, 460, 575 or 24 volt service. End switches are available. When a motorized damper option is selected a 2" (or greater) high roof curb is required. (DCRW, BCRW) with automatic or motorized operation, feature a vinyl seal on the edge of the damper blades for quiet operation. Damper frames are constructed of 20-gauge galvanized steel and blades are constructed of 26-gauge aluminum. Motorized dampers are available with 5, 208, 230, 460, or 575 volt service, and have end switches as standard. 4 5 Canted Roof Curb Prefabricated roof curbs are available in heavy duty galvanized steel or aluminum construction, in heights of 8", 2" or 8". The canted curb is provided with a factory installed wood nailer. Curbs are provided with.5" of insulation as standard and feature continuously welded seams for added rigidity and moisture protection. Prefabricated curbs are also available in raised cant, pitched and peak models. See page 0 for additional information on roof curbs. Minimum 2" high curbs are recommended for use with motorized dampers. Curb Hinge The curb hinge arrangement provides easy access to the exhaust fan, backdraft damper and duct for servicing and cleaning. The curb hinge is of the piano type, running the entire length of the fan's curb base. The curb hinge option ships loose and is designed for use with a standard canted curb only (.5" less than fan base). This option cannot be used with self-flashing curbs. Available as an option on models DCRU, DCRUR, BCRU, BCRUR and BCRUSH. 2 3 Aluminum Insect Screen Provides protection from entry of insects into wheel, inlet and interior of building. Available for DCRU, DCRW, BCRU and BCRW fans only. Retaining Chain is available in conjunction with the curb hinge arrangement to stabilize the unit and to prevent damage from occurring to the unit while servicing and cleaning. 6 7 Security Hasp is available in conjunction with the curb hinge arrangement to prevent removal of the unit from the roof curb and prevent entrance into the building through the roof s ductwork. Tie-Down Brackets A quantity of four brackets are mounted to the fan shroud to allow the fan to be secured to the roof in areas where high winds are a concern. Guy wires are supplied and installed by others. 8 TWIN CITY FAN - CATALOG 405

OPTIONS/ACCESSORIES 4 2 3 2 3 4 Grease Box Removable, for disposal of collected grease. Available for DCRUR & BCRUR fans only. Drain Connection (Downspout) Removable, for disposal of collected grease. Available for DCRUR & BCRUR fans only. Vented Roof Curbs Self-flashing style curbs with ventilation louvers allow ambient air in to cool and dilute grease- or smoke-laden airstreams. Available for DCRUR, BCRUR and BCRUSH fans only. Variable Speed Control Variable speed control is an optional accessory on all DCRU, DCRUR, DCRW and DCRWR models with 5 volt, open type speedcontrollable motors, to allow the adjustment of airflow for system balancing. Variable speed controllers are solid-state (Tri-ac) design and feature an RFI filter, minimum speed trim adjustment capability, and a built-in on/off line switch. The speed controller is designed to start the motor on high speed for better startup characteristics. Variable speed controls have the option of being shipped separately, factory installed, or field installed on the unit at a later date. Motor must be ODP 5V PSC or shaded pole type. OTHER ACCESSORIES/OPTIONS: Special Coatings Straight Sided Roof Curb 2-Speed Switch (Single Phase, HP and below) Firestat (Single Phase) AMCA Spark B Performance Baffle Aluminum Bird Screen Miami Dade Construction Stainless Steel Hardware Stainless Steel Shaft NEMA 4 Disconnect Switch (see page ) NEMA 3R Disconnect Switch (see page ) WWW.TCF.COM 9

ELECTRONICALLY COMMUTATED MOTORS Twin City Fan & Blower offers its own line of custom engineered Electronically Commutated (EC) motors. Electronic commutation is the latest motor technology to be used in direct drive fans. Also known in the industry as Brush Free or Brushless DC, the EC motors utilize an electronic circuit board to control the functionality of the motor. The motor operates off of single phase AC power, which is converted to DC power within the motor s circuitry. TCF has motor options available for 5V, 208-230V or 277V single phase electrical power. The result is a highly efficient motor, even at part load, with an expanded speed control range and a variety of speed control options from which to choose. EC motors are available in ODP, TENV and TEFC enclosures. GridSmartTM EC Motors Model DCRU With GridSmart TM EC Motor Benefits Efficiencies up to 85% Constant efficiency as the motor speed is varied Up to 66% energy savings over traditional PSC motors Performance range comparable to a belt drive fan with reduced maintenance benefits of a direct drive fan 80% usable turndown range as compared with 40% maximum on PSC motors Soft start gives fans smooth, quiet start Lower operating temperatures result in longer life and reduces energy consumption Heavy-duty ball bearings are permanently lubricated Elimination of VFD results in lower initial cost HP & 2HP GridSmart TM EC Motors /6HP to HP GridSmart TM EC Motors EC Motor Options /6HP to HP /6HP: 5V, single phase /4HP HP: 5V, 208-230V, 277V, single phase ODP or TENV Enclosure Motor mounted speed control dial as standard 0-0VDC control leads as standard Available with remote mounted speed control dial HP & 2HP HP: 5V, 208-230V, single phase 2HP: 208-230V, single phase TEFC enclosure (totally enclosed fan cooled) Available with motor mounted speed dial or 0-0VDC control lead 0 TWIN CITY FAN - CATALOG 405

DISCONNECT SWITCHES NEMA Disconnect Switch A NEMA disconnect switch provides positive electrical shutoff during fan cleaning or maintenance of fan. DCRU, DCRW, BCRU and BCRW fans are provided with a NEMA type disconnect switch in the motor compartment when ODP or TEFC motors are used. NEMA 3R Disconnect Switch DCRUR, DCRWR, BCRUR, BCRWR and BCRUSH fans are provided with a NEMA 3R rain-tight disconnect switch, externally mounted when ODP or TEFC motors are used. NEMA 3R, rain proof, disconnects are available shipped loose for field mounting and wiring or factory mounted and wired on models DCRU, DCRW, BCRU and BCRW. NEMA Disconnect Switch NEMA 4 Disconnect Switch A NEMA 4 disconnect switch (optional) is mounted externally and is water- and dust-tight. Switch is available shipped loose for field mounting and wiring or factory mounted and wired. NEMA 3R enclosure is also available. NEMA 7/9 Disconnect Switch NEMA 7/9 disconnect switches are provided as standard on fan packages with explosion proof motors. The NEMA 7/9 switch is designed for use with fans operating in hazardous environments. When explosion proof motors are specified, NEMA 7/9 disconnects will be shipped loose for field mounting and wiring. (Not shown.) NEMA 3R Disconnect Switch MODEL STANDARD DISCONNECT SWITCH NEMA NEMA 3R NEMA 4 NEMA 7/9 DCRU Standard Optional Optional Standard, w/exp motor* DCRUR Standard Optional Standard, w/exp motor* DCRW Standard Optional Optional Standard, w/exp motor* DCRWR Standard Optional Standard, w/exp motor* BCRU Standard Optional Optional Standard, w/exp motor* BCRUR Standard Optional Standard, w/exp motor* BCRW Standard Optional Optional Standard, w/exp motor* BCRWR Standard Optional Standard, w/exp motor* BCRUSH Standard Optional Standard, w/exp motor* * Always ships loose NEMA 4 Disconnect Switch WWW.TCF.COM

PREFABRICATED ROOF CURBS Overview Canted Roof Curbs Constructed of 8-gauge galvanized steel with continuous welded seams Large 3" built-in 45 cant to accommodate roofing material to top of curb. Cant is beveled at corners for better support of roofing material Wood nailer ( 2") secured to top ledge Lined with 2" fiberglass fire-resistant, sound-absorbing insulation Damper shelf standard Options: Aluminum (6-gauge) construction, Burglar security bars, Metal liner (galvanized or aluminum), Special heights up to 24", Single or double pitched curbs for sloping roofs Self Flashing & Straight Sided Roof Curbs Constructed of 8-gauge galvanized steel with continuous welded seams Wide base plate (flashing) to insure watertight seal to roof Top ledge covered with 3 6" polystyrene gasket for weather seal and to reduce metal-to-metal conducted noise Lined with 2" fiberglass fire-resistant, sound-absorbing insulation Damper shelf standard Straight-sided roof curbs are constructed with the same features as the self-flashing curbs, but are one dimensional to allow for field supplied cants and roofing material to be brought up to the top of the curb Options: Aluminum (6-gauge) construction, Burglar security bars, Metal liner (galvanized or aluminum), Special heights up to 24", Wood nailer ( 2") secured to top ledge in lieu of polystyrene gasket, Single or double pitched curbs for sloping roofs Self Flashing Vented Roof Curbs For High Temperature Applications Completely assembled unit, easier to install and less expensive than a field constructed curb Constructed of 8-gauge galvanized steel with continuous welded seams and wide base flashing for watertight seal to roof Meets NFPA-96 code requirements Top ledge covered with 3 6" polystyrene gasket Furnished with ventilation slots Curb Adapters Constructed of heavy-gauge galvanized steel with continuous welded seams Top ledge covered with 3 6" polystyrene gasket to reduce metal-to-metal conducted noise and act as a weather seal Available in enlarger or reducer (shown) models 2 TWIN CITY FAN - CATALOG 405

Direct Drive DCRU / DCRUR / DCRW / DCRWR EC MOTOR PSC MOTOR SIZE MTR HP SIZE MTR HP RPM MAX. INPUT WATTS --- --- 07B /8 860 67 --- --- 072B /8 60 72 --- --- 073B / 650 --- 073BE /6 --- --- 750 --- 083BE /4 093BE /4 0BE /2 0B 20BE 3/4 20B 40BE, 2 60BE 80BE 08B /8 860 82 082B /8 60 85 083B /3 750 46 09B /8 860 79 092B /8 60 8 093B /3 750 68 40B 60B /8 860 --- /8 60 --- /2 750 --- /8 860 --- /4 60 --- 3/4 750 --- /8 860 --- /2 60 --- --- --- 750 --- /4 860 --- /2 60 --- --- --- 200 --- 2 --- --- 750 --- /2 860 --- 80B 00 --- 60 --- 2 --- --- 400 --- EC Motor is an Electronically Commutated Motor. PSC Motor is a Permanent Split Capacitor Motor. 0 0.25 0.25 0.375 0.50 0.625 0.75.00.25.50 CFM CFM CFM CFM CFM CFM CFM CFM CFM CFM BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone 224 9 --- 4.2 --- 4. 292 2 --- 4.6 --- 4.4 370 320 264 85 0.0 5.3 0.0 5.0 0.0 4. 0.0 4.2 392 345 294 226 0.2 5.9 0.2 5.7 0.2 4.6 0.2 5.0 259 80 --- 2.6 --- 3.2 496 426 334 --- 6.6 --- 6.2 --- 6.2 780 732 68 626 56 492 48 --- 9.2 --- 9.2 --- 9.0 --- 8.4 --- 8.4 --- 8.9 --- 8.6 656 463 --- 7.0 --- 6.9 836 694 534 307 --- 7.5 --- 6.8 --- 7. --- 6.5 307 209 05 998 885 748 597 --- 0.0 --- 0.0 --- 9.4 --- 8.9 --- 9.3 --- 9.4 --- 9. 805 698 566 0.04 4.9 0.05 4.3 0.05 4.5 086 008 926 833 720 537 0.0 8.2 0. 8.0 0. 7.0 0. 7.2 0. 7.0 0.0 6. 638 588 536 482 427 37 3 73 005 0.35 5.7 0.36 5.7 0.37 5.7 0.37 4.2 0.38 3.5 0.38 2.9 0.39 2.9 0.39 4.0 0.39 2. 09 982 862 69 0.06 6.3 0.07 5.6 0.07 5.5 0.07 4.9 495 399 309 225 22 997 0.6 0.0 0.7 9.9 0.7 8.6 0.8 8.5 0.8 9.2 0.8 8.8 2256 290 227 2065 2006 950 895 773 620 448 0.54 8.5 0.55 8.5 0.57 8.5 0.58 7.5 0.59 6.4 0.60 6. 0.6 5.5 0.62 6.0 0.63 7. 0.62 6.0 676 52 358 55 0. 8.6 0.2 7.8 0.3 7.3 0.3 7.7 226 238 209 907 785 634 465 0.27 3.6 0.29 3.6 0.30 2.0 0.3.2 0.32.8 0.32 2.2 0.32. 34 3329 3248 368 3089 302 2938 2786 2608 2397 0.94 27 0.96 27 0.98 27.00 26.02 24.04 22.06 2.09 2.0 22.0 22 267 94 769 597 380 0.8.3 0.9 9.4 0.20 8.7 0.20 9.5 0.20 8.6 2923 2700 256 2453 2344 226 2075 73 0.43 7.2 0.46 7.0 0.47 4.3 0.48 3.4 0.49 3.4 0.49 4.3 0.49 4.5 0.49.2 3024 2805 2665 2559 2456 2337 2206 886 0.48 8. 0.50 8. 0.52 5.2 0.53 4.2 0.54 4.2 0.54 5. 0.55 5.3 0.55 3.4 440 4234 405 3997 3906 3830 3759 369 3462 3288.48 33.53 33.56 33.58 29.60 27.6 26.63 26.65 25.68 26.69 27 2866 2685 2504 232 209 839 550 0.29.9 0.3.9 0.32 0.6 0.33 9.6 0.34 0. 0.34 9.9 0.33 8.8 3665 3524 3382 3240 302 2955 2780 2389 93 0.6 6.4 0.63 6.4 0.65 6.7 0.66 5.5 0.68 4.8 0.69 4.2 0.7 4.7 0.7 5. 0.68 3.2 3865 373 3597 3462 3330 396 3047 2685 2296 0.7 7.6 0.73 7.6 0.75 8.5 0.77 7.5 0.79 6.4 0.8 5.8 0.82 5.8 0.84 6.8 0.83 5.6 4665 4554 4443 433 429 409 4000 3773 3496 388.25 23.28 23.30 23.33 23.35 22.37 22.39 22.43 22.46 22.48 23 Fan Efficiency Grade PERFORMANCE DATA NOTES:. Performance certified is for Installation Type A: Free inlet, free outlet. 2. Power rating (BHP) does not include transmission losses. 3. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound ratings shown are loudness values in fan sones at 5 ft. (.5 m) in a hemispherical free field calculated per AMCA Standard 30. 5. Values shown are for Installation Type A: Free inlet hemispherical sone levels. 6. All sizes are available with variable speed control. MODEL FAN SIZE OUTLET AREA (ft 2 ) FEG MODEL FAN SIZE OUTLET AREA (ft 2 ) FEG 40B 2.68 FEG63 20B 6.07 FEG63 40BE 2.68 FEG63 20BHP 6.07 FEG67 DCRU/DCRUR/ 60B 2.68 FEG60 240B 6.07 FEG60 DCRW/DCRWR 60BE 2.68 FEG60 240BHP 6.07 FEG63 80B 3.86 FEG60 BCRU/BCRUR/ 300B 9.23 FEG7 BCRW/BCRWR/ 80BE 3.86 FEG60 BCRUSH 300BHP 9.23 FEG7 40B 2.68 FEG63 360B.9 FEG63 BCRU/BCRUR/ 60BMP 2.68 FEG60 360BHP.9 FEG67 BCRW/BCRWR/ 60BHP 2.68 FEG63 420B 4.29 FEG67 BCRUSH 80BMP 3.86 FEG60 480B 6.9 FEG63 80BHP 3.86 FEG63 WWW.TCF.COM 3

PERFORMANCE DATA Belt Driven 0B BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 56 HP /4 /3 /2 RPM 625 750 925 025 25 250 330 375 55 585 670 795 920 0 0.25 0.25 0.375 0.50 0.625 0.75 0.875.00.25.25.50 585 423 0.02 2.7 0.02 2.4 702 576 384 0.03 3.9 0.03 3. 0.03 2.8 866 767 652 485 0.05 5.6 0.06 5. 0.06 5. 0.06 4.2 959 87 774 653 433 0.07 6.7 0.08 6.3 0.08 5.6 0.08 5.9 0.07 5.0 053 973 887 789 666 0.09 7.7 0.0 7.6 0.0 6.6 0.0 7.0 0.0 6.4 70 098 023 942 846 732 0.3 9.3 0.3 9.2 0.4 8.0 0.4 7.6 0.4 8.3 0.4 7.4 245 78 07 033 950 853 732 0.5 0.3 0.6 0.3 0.7 9.2 0.7 8.5 0.7 9.0 0.7 9.0 0.7 7.7 287 222 54 084 006 95 8 643 0.7 0.6 0.8 0.6 0.8 9.8 0.9 9.0 0.9 9. 0.9 9.5 0.9 8.7 0.7 8. 48 360 299 236 70 097 05 923 802 0.23 2.6 0.23 2.6 0.24.8 0.25 0.8 0.25 0.3 0.25 0.7 0.25.2 0.25 0.6 0.24 9.3 484 428 370 30 248 82 08 025 932 800 0.26 3.3 0.27 3.3 0.28 3. 0.28.8 0.28.2 0.29.2 0.29 2.0 0.29 2.0 0.29 0.6 0.27 9.9 563 50 456 399 34 28 24 4 06 970 84 0.30 4.7 0.3 4.7 0.32 4.2 0.33 3.3 0.33 2.5 0.33 2.0 0.34 2.7 0.34 2.9 0.34 2.8 0.34.3 0.32 0.9 680 63 58 529 475 42 363 30 233 59 078 825 0.38 6.3 0.39 6.3 0.40 6.3 0.40 5. 0.4 4.2 0.4 3.6 0.42 3.6 0.42 4.2 0.42 4.4 0.42 4.3 0.42 3.3 0.38 2.0 797 75 704 656 607 557 505 45 392 392 26 06 0.46 7.8 0.47 7.8 0.48 7.8 0.49 7.5 0.50 6.5 0.50 5.6 0.5 5. 0.5 5. 0.5 5.3 0.5 6. 0.52 6. 0.5 4.0 20B BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 56 HP /4 /3 /2 RPM 650 975 305 370 435 545 655 0 0.25 0.25 0.375 0.50 0.625 0.75 0.875.00.25.25.50 838 677 0.03 3.5 0.03 3.0 257 43 042 98 753 0.09 7.6 0.0 7. 0. 6.5 0. 7.0 0.0 5.6 682 596 53 438 362 268 59 035 0.22.6 0.23.6 0.24 0.8 0.25 0.2 0.26 0. 0.26 0.8 0.26 0.6 0.25 9.5 766 683 604 53 460 379 282 74 040 0.26 2.5 0.27 2.5 0.28.8 0.29.0 0.29 0.6 0.30.2 0.3.8 0.30.3 0.29 9.6 850 77 695 623 556 485 399 300 95 047 0.30 3.6 0.3 3.6 0.32 2.8 0.33 2.0 0.33.4 0.34.5 0.35 2.2 0.35 2.5 0.34.7 0.33 0.3 992 98 847 779 75 653 583 502 4 34 200 0.37 4.9 0.38 4.9 0.39 4.6 0.40 3.8 0.4 3. 0.42 2.9 0.43 3.0 0.43 3.8 0.43 4.0 0.43 3.6 0.42 2. 233 2064 998 933 872 84 754 688 62 527 438 202 0.46 6.6 0.47 6.6 0.48 6.6 0.49 5.5 0.50 4.6 0.5 4.4 0.52 4.3 0.52 4.4 0.53 5.2 0.53 5.4 0.53 5.3 0.5 3. 40B BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 43T HP RPM 0 0.25 0.25 0.375 0.50 0.625 0.75 0.875.00.25.25.50 /4 850 657 49 334 26 0. 8.4 0.2 7.7 0.3 7.2 0.3 7.3 080 205 973 847 726 578 402 0.22 2. 0.23 2.0 0.25 0.4 0.25 0.2 0.26 0.9 0.26 0.2 /3 40 2222 2097 976 862 732 577 0.26 2.9 0.27 2.9 0.29.7 0.30.0 0.30.6 0.3.8 200 2339 2220 204 995 882 745 586 0.30 4.2 0.32 4.2 0.33 2.8 0.34 2.0 0.35 2.0 0.36 2.7 0.36 2. /2 305 2543 2434 2327 2224 225 205 885 739 0.39 6.8 0.4 6.8 0.42 5.5 0.43 3.9 0.45 3.5 0.45 3.8 0.46 4.6 0.46 3.9 370 2670 2566 2464 2364 2269 27 2058 926 785 0.45 8.5 0.47 8.5 0.48 7.5 0.50 5.6 0.5 4.6 0.52 4.6 0.53 5.2 0.53 5.2 0.53 4.5 3/4 475 2875 2778 2682 2589 2499 24 238 220 2089 958 0.56 2 0.58 2 0.60 2 0.6 8.0 0.63 7. 0.64 6. 0.65 6.6 0.66 6.7 0.66 7.5 0.66 6.6 565 3050 2959 2869 2780 2693 26 2527 2436 2332 227 2094 0.67 23 0.69 23 0.7 23 0.73 2 0.74 9.0 0.76 7.8 0.77 7.6 0.78 8.0 0.79 8.7 0.79 8.8 0.79 8. 650 326 329 3043 2959 2876 2796 278 2637 2547 2447 2338 202 0.79 25 0.8 25 0.83 25 0.85 23 0.86 2 0.88 9.8 0.89 9. 0.9 9. 0.92 9.6 0.92 20 0.93 20 0.92 8.4 720 3352 3269 387 305 3025 2947 2872 2796 276 2627 2529 230 0.89 27 0.92 27 0.94 27 0.95 25 0.97 23 0.99 2.0 2.02 20.03 20.04 2.05 22.05 2 NOTES:. Performance certified is for Installation Type A: Free inlet, free outlet. 2. Power rating (BHP) does not include transmission losses. 3. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound ratings shown are loudness values in fan sones at 5 ft. (.5 m) in a hemispherical free field calculated per AMCA Standard 30. 5. Values shown are for Installation Type A: Free inlet hemispherical sone levels. 4 TWIN CITY FAN - CATALOG 405

Belt Driven PERFORMANCE DATA 40BHP BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 56 HP /4 /3 /2 3/4 RPM 450 525 600 680 80 940 2075 2205 0.50 0.625 0.75 0.875.00.25.25.50.75 2.00 2.25 2.50 095 05 924 86 0.22 9.6 0.22 0.4 0.22 0.2 0.22 8.8 8 09 028 938 823 0.25 0.5 0.26.0 0.26.3 0.26 0.7 0.25 9.3 265 99 27 046 956 836 0.29.3 0.29.3 0.30 2.0 0.30 2. 0.30.2 0.29 0.3 352 292 227 55 075 987 866 0.34 2.6 0.34 2. 0.34 2.7 0.34 2.9 0.35 2.8 0.34.8 0.33 0.9 49 437 38 39 253 80 02 870 0.42 4.3 0.42 4.0 0.43 3.6 0.43 4.3 0.43 4.5 0.43 4.5 0.43 3.7 0.40 2.3 628 578 527 474 47 355 288 39 895 0.5 6.9 0.52 5.9 0.52 5. 0.52 5. 0.53 5.4 0.53 6. 0.53 6.2 0.53 4.7 0.48 3.4 767 722 675 627 577 524 467 34 97 960 0.62 8.6 0.63 7.8 0.63 7. 0.64 6.8 0.64 6.6 0.65 7.0 0.65 7.7 0.65 7.7 0.64 5.6 0.59 4.8 900 857 84 770 725 677 627 59 397 256 03 0.74 2 0.75 9.8 0.76 8.9 0.76 8.6 0.77 7.9 0.77 7.9 0.77 8. 0.78 9. 0.78 9.0 0.77 6.6 0.7 6.5 60B BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 43T HP RPM 0 0.25 0.25 0.375 0.50 0.625 0.75 0.875.00.25.25.50 /4 780 2207 989 708 299 0.7 8.6 0.8 8. 0.9 7.4 0.8 7.3 865 2448 2255 2023 74 29 0.24 0.2 0.25 0.0 0.26 8.7 0.26 9.3 0.24 8.4 /3 900 2547 2363 245 866 496 0.27. 0.28. 0.29 9.4 0.29 0.0 0.28 9.3 950 2688 255 235 207 753 324 0.3 2. 0.33 2.0 0.34 0.7 0.34 0.5 0.34 0.9 0.3 9.4 /2 000 2830 2666 248 2263 984 638 0.36 3.4 0.38 3.4 0.39 2.0 0.40.4 0.40 2. 0.38. 00 33 2966 2803 2620 2404 237 89 338 0.48 5.5 0.50 5.5 0.52 4.6 0.53 3.5 0.53 3.6 0.53 4.6 0.5 3.3 0.45 2.3 3/4 60 3283 344 2992 2824 2632 240 230 805 0.57 6.9 0.59 6.9 0.60 6. 0.6 5. 0.62 5.0 0.62 5.7 0.6 5.4 0.59 3.6 250 3538 3409 327 32 2955 2766 254 2286 988 546 0.7 9.3 0.73 9.3 0.75 8.7 0.76 8.2 0.77 7. 0.78 7.2 0.78 8.3 0.77 7.6 0.74 5.9 0.67 5.2 320 3736 365 3486 3347 395 3028 2835 262 2363 2074 655 0.84 2 0.86 2 0.88 2 0.89 9.8 0.9 9.2 0.92 9.0 0.92 9.3 0.9 9.6 0.90 9.2 0.87 7. 0.79 6.6 380 3905 3790 3668 3537 3396 3242 307 2872 265 2404 28 0.96 23 0.98 23.00 23.02 22.03 2.04 20.05 20.05 22.04 2.02 20 0.99 8. 60BMP BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 43T HP RPM 0 0.25 0.25 0.375 0.50 0.625 0.75 0.875.00.25.50.75 /4 825 2079 823 67 483 233 0.6 0.5 0.7 8.7 0.7 8. 0.8 8.9 0.8 6.9 930 2344 2097 958 82 636 42 0.22 2.5 0.24 0.7 0.25 0.0 0.25 0.0 0.26 0.7 0.23 8.6 /3 975 2457 225 2077 944 786 595 343 0.26 3.2 0.27.7 0.28 0.7 0.29 0.6 0.29.4 0.30 0.5 0.29 8.4 020 2570 2333 295 2073 928 760 552 0.29 4.2 0.3 3.0 0.32.5 0.33.0 0.33 2. 0.34.9 0.34 9.8 /2 00 2772 2543 2404 2293 269 2028 866 669 0.37 6.0 0.39 5. 0.40 3.0 0.4 2.4 0.42 2.6 0.42 3.5 0.42 3.3 0.42.0 85 2986 2765 2626 2520 244 2292 257 2005 823 0.46 8.0 0.48 7.7 0.50 5.2 0.5 4.2 0.52 4. 0.52 4.4 0.53 5.2 0.53 4.7 0.53 2.7 3/4 265 388 297 2834 2730 2634 2528 240 228 236 766 0.56 9.7 0.59 9.7 0.60 7.0 0.6 6.0 0.62 5.5 0.63 5.5 0.64 6.5 0.64 6.7 0.64 6.4 0.63 2.8 345 3389 383 3044 2939 2848 2755 2650 2537 244 222 0.67 22 0.70 22 0.72 9. 0.73 7.8 0.74 7. 0.75 7.0 0.76 7. 0.77 8.0 0.77 8.8 0.78 6.5 45 3566 3365 3227 32 3032 2947 2854 275 264 239 2073 0.78 24 0.82 24 0.84 2 0.85 9.5 0.86 8.6 0.87 8.5 0.88 8.6 0.89 8.7 0.89 9.8 0.90 9.9 0.89 6.2 490 3755 3560 3424 337 3229 347 3064 2972 2872 2653 2392 2055 0.9 26 0.95 26 0.97 24 0.99 22.00 20.0 20.02 9.4.03 9.5.04 20.05 22.05 20.03 7.9 NOTES:. Performance certified is for Installation Type A: Free inlet, free outlet. 2. Power rating (BHP) does not include transmission losses. 3. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound ratings shown are loudness values in fan sones at 5 ft. (.5 m) in a hemispherical free field calculated per AMCA Standard 30. 5. Values shown are for Installation Type A: Free inlet hemispherical sone levels. WWW.TCF.COM 5

PERFORMANCE DATA Belt Driven 60BHP BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 43T HP RPM 0.50 0.625 0.75 0.875.00.25.25.50.75 2.00 2.25 2.50 /4 950 205 0.8 8. 085 592 47 0.26 0.26 0.2 /3 55 772 620 450 0.32.6 0.32.9 0.32 0.6 95 870 73 57 0.35.9 0.35 2.7 0.35 2 /2 320 258 2052 926 783 630 0.46 3.8 0.47 3.9 0.47 4.7 0.47 4.2 0.47 2.6 365 2258 260 2045 92 770 0.5 4.3 0.52 4.6 0.52 5.2 0.52 5.2 0.52 4.4 3/4 500 2553 2467 2377 2274 258 203 899 0.66 7.4 0.67 6.7 0.68 6.7 0.69 7.6 0.70 7.8 0.69 7.2 0.69 6 560 2683 2600 255 2424 239 2203 2079 0.74 8.8 0.75 7.8 0.76 7.6 0.78 7.8 0.78 8.7 0.78 8.7 0.78 7.9 680 2940 286 2784 2706 262 2525 242 293 0.9 22 0.93 2 0.94 9.8 0.96 9.6 0.97 9.8 0.97 20 0.98 2 0.97 9.5 75 304 2936 286 2785 2704 265 255 2296 0.96 23 0.98 2.00 2.0 20.03 20.03 2.04 2.04 2 80B BCRU / BCRUR / BCRUSH / BCRW / BCRWR HP /4 /3 /2 3/4 -/2 2 RPM 525 665 700 730 785 840 900 965 00 060 35 20 270 330 Max. Motor Frame = 45T 0 0.25 0.25 0.375 0.5 0.625 0.75 0.875.00.25.50.75 2469 988 25 0.2 5.9 0.3 5. 0.2 4.7 327 2758 2338 736 0.24 9. 0.25 8.5 0.26 8. 0.25 7.9 3292 2942 2558 2030 0.28 0. 0.29 9.5 0.30 8.7 0.30 9.3 3433 3099 2738 2274 629 0.32 0.8 0.33 0.3 0.34 9.3 0.34 0.0 0.3 8.5 3692 3382 3056 2669 249 0.39 2.3 0.4.9 0.42 0.6 0.43 0.9 0.4 0.7 395 3662 336 3025 2602 2074 0.48 3.6 0.50 3. 0.52 2. 0.52.7 0.52 2.6 0.49 0.9 4233 3965 3685 3389 3039 2590 2065 0.59 5.0 0.6 5.0 0.63 3.5 0.64 3.2 0.64 3.7 0.63 3.7 0.59.6 4538 4289 4030 3763 3462 307 2662 246 0.73 7. 0.75 7. 0.77 5.8 0.79 4.9 0.79 4.9 0.79 5.9 0.77 4.7 0.7 3. 4750 452 4266 403 3739 3423 3037 2600 995 0.84 8.2 0.86 8.2 0.88 7.2 0.90 6.2 0.9 6. 0.9 7.0 0.90 6.7 0.87 5.4 0.76 4.0 4985 4759 4526 4286 4035 375 3425 3024 2600 0.97 20 0.99 20.02 9.0.04 7.9.05 7..05 7.9.04 8.2.03 7.7 0.98 5.6 5338 527 490 4688 446 425 3940 3625 3248 238.9 22.2 22.24 2.26 20.28 9.7.29 9.6.29 20.28 20.26 9.5.0 6.7 569 5493 529 5084 4874 4655 445 45 3850 333.44 24.47 24.50 24.52 23.54 22.56 2.57 2.56 22.55 23.49 20 5973 5785 5593 5396 597 4993 4776 4539 4279 3640 2888.66 26.69 26.72 26.75 25.77 24.80 23.8 23.8 23.80 24.77 23.64 9.7 6255 6076 5893 5706 556 5324 525 4909 4676 429 347 2543.9 28.94 28.97 28 2.00 27 2.03 26 2.05 25 2.07 25 2.08 25 2.08 25 2.05 26.98 23.7 2 NOTES:. Performance certified is for Installation Type A: Free inlet, free outlet. 2. Power rating (BHP) does not include transmission losses. 3. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound ratings shown are loudness values in fan sones at 5 ft. (.5 m) in a hemispherical free field calculated per AMCA Standard 30. 5. Values shown are for Installation Type A: Free inlet hemispherical sone levels. 6 TWIN CITY FAN - CATALOG 405

Belt Driven PERFORMANCE DATA 80BMP BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 45T HP RPM 0 0.25 0.25 0.50 0.75.00.25.50.75 2.00 2.25 2.50 /4 650 266 926 673 0.3 7.4 0.4 6.9 0.5 6.2 790 2632 2435 2240 750 0.22 0.4 0.24 0.2 0.25 8.9 0.26 8.8 /3 830 2766 2578 239 946 0.26.2 0.28.2 0.29 9.7 0.3 9.6 870 2899 2720 254 239 63 0.30.9 0.32.9 0.33 0.8 0.35 0.3 0.34 9.0 /2 930 3099 2932 2763 244 952 0.37 3.6 0.38 3.6 0.40 2.3 0.42. 0.43.3 995 335 359 3002 2688 2279 802 0.45 3.9 0.47 3.9 0.48 4. 0.5 2.3 0.53 3.0 0.5. 3/4 060 3532 3385 3238 2947 2593 279 0.54 5.4 0.56 5.4 0.58 5.7 0.6 3.8 0.64 4.2 0.63 3.6 30 3765 3628 3490 326 296 2538 223 0.66 7. 0.68 7. 0.70 7.5 0.73 5.6 0.76 5.0 0.78 5.9 0.75 4.0 90 3965 3835 3703 3443 375 283 2463 0.77 8.4 0.79 8.4 0.8 8.7 0.85 6.8 0.88 6.3 0.90 7.3 0.90 6.8 250 465 404 396 3667 349 37 2772 2396 0.89 9.7 0.9 9.7 0.94 9.7 0.98 8.9.0 8.2.04 8.3.05 9.0.03 7. -/2 340 4465 4349 4223 3999 377 352 32 2889 2529.09 22.2 22.4 22.9 2.23 20.26 9.9.29 2.29 2.26 9.0 430 4765 4656 4547 4329 43 3894 3635 3334 303 2689.33 24.36 24.38 24.43 23.48 22.52 22.55 23.57 24.56 24.53 22 2 500 4998 4895 479 4583 4376 47 3945 3672 3383 3087 275.53 26.56 26.59 26.64 25.69 24.74 24.77 24.80 25.8 25.80 25.75 23 575 5248 549 505 4852 4654 446 4258 4020 3748 3475 386 286.78 28.8 28.84 28.89 27.94 26.99 25 2.03 25 2.07 26 2.0 27 2.0 27 2.07 25 2.02 24 80BHP BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 45T HP RPM 0.50 0.625 0.75 0.875.00.25.50.75 2.00 2.25 2.50 2.75 /4 875 475 93 0.2 9.3 0.2 8.4 935 692 484 0.26 0.8 0.26 0.0 /3 980 848 655 428 0.30.5 0.30.5 0.30 0.2 030 204 837 649 0.34.9 0.35 2.4 0.35.9 /2 05 225 2097 928 75 498 0.42 2.6 0.42 3.8 0.43 3.8 0.43 2.9 0.42 2. 80 2480 2343 294 2034 867 0.5 4.0 0.5 4.2 0.52 5. 0.52 5. 0.53 4.4 3/4 265 273 2608 2477 2337 287 843 0.62 5.7 0.63 5. 0.63 6. 0.64 7.0 0.64 6.8 0.64 4.6 350 2976 2865 2747 2623 2490 2207 82 0.75 7.4 0.76 7.0 0.76 7. 0.77 7.6 0.78 8.3 0.79 7.5 0.76 5.9 45 359 3056 2946 2832 27 2447 259 0.85 8.8 0.87 8.3 0.87 7.7 0.88 8.4 0.89 9.3 0.90 9.3 0.90 7.0 485 3354 3258 356 3050 2939 2699 244 29 0.98 20 0.99 9.4.0 9.0.0 9.0.02 9.6.04 2.05 9.7.03 7.3 -/2 595 3656 3569 3477 3382 3284 3074 2844 2602 2305.2 22.22 22.24 2.25 2.26 2.27 22.29 22.30 2.28 9.0 705 3953 3873 379 3705 366 3428 3226 3008 278 252.47 24.48 24.50 24.5 23.52 22.54 23.56 24.57 25.58 23.57 20 2 790 48 406 4028 3948 3866 3692 3507 3308 3096 2879 26.69 26.7 26.72 25.74 25.75 24.78 24.80 25.8 26.82 25.83 24.82 2 870 4394 4322 4249 474 4097 3934 3762 3580 3384 380 2968 270.92 27.94 27.96 27.97 26.99 26 2.0 25 2.04 26 2.06 27 2.07 28 2.08 27 2.09 25 2.07 22 NOTES:. Performance certified is for Installation Type A: Free inlet, free outlet. 2. Power rating (BHP) does not include transmission losses. 3. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound ratings shown are loudness values in fan sones at 5 ft. (.5 m) in a hemispherical free field calculated per AMCA Standard 30. 5. Values shown are for Installation Type A: Free inlet hemispherical sone levels. WWW.TCF.COM 7

PERFORMANCE DATA Belt Driven 20B BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 45T HP RPM 0 0.25 0.25 0.375 0.50 0.625 0.75.00.25.50.75 2.00 /4 500 3288 2895 2472 957 0.4 8.5 0.6 6.9 0.9 6.7 0.20 5.4 550 366 3260 2892 2462 86 0.9 0.0 0.2 8.9 0.24 7.8 0.26 7.3 0.26 6.5 /3 570 3748 3404 3053 2648 267 0.2 0.7 0.24 9.6 0.26 8.2 0.28 8.4 0.29 6.9 600 3945 369 3288 299 2506 843 0.24.6 0.27 0.8 0.30 8.9 0.32 9.5 0.34 7.3 0.32 7.7 /2 650 4274 3974 3669 3348 2982 2580 899 0.3 3.2 0.34 2.5 0.37 0.3 0.40 0.4 0.42 0. 0.43 8.7 0.40 8.7 695 4570 4289 4005 374 3389 3037 26 0.38 4.8 0.4 4.8 0.44 2. 0.48.3 0.50 2. 0.52 0.6 0.53 9.8 3/4 750 493 4672 4408 444 386 3547 329 283 0.47 6.3 0.5 6.3 0.55 4.0 0.58 2.8 0.6 3.3 0.64 3.4 0.66.5 0.62.4 795 5227 4983 4735 4486 4229 3947 3642 2906 0.56 8.0 0.60 8.0 0.64 6.0 0.68 4.4 0.7 4.2 0.75 5. 0.77 4.3 0.78 2.4 830 5457 5223 4986 4747 4506 4246 3962 335 2284 0.64 9.3 0.68 9.3 0.72 7.7 0.76 5.5 0.80 5. 0.84 6.0 0.87 6.0 0.90 3.2 0.82 3.2 875 5753 553 5307 5080 4854 467 4359 3803 3030 0.75 20 0.79 20 0.84 9. 0.88 7.2 0.92 5.7 0.96 6.2 0.99 7.2.04 5..04 4.4 -/2 950 6246 6042 5836 5628 549 5209 4988 4499 3976 380 0.96 22.0 22.05 22.0 9.7.4 8.0.9 7.2.23 7.7.3 8.7.34 5.7.32 6.3 000 6575 638 686 5988 5790 5592 5389 4944 4457 395 309.2 24.7 24.22 24.27 2.3 20.36 8.8.4 8.4.49 9.5.55 8.7.57 7.4.49 7.4 2 050 6904 679 6533 6346 657 5968 5778 537 4920 4448 388 2892.29 25.35 25.40 25.45 23.50 2.55 20.60 9.5.69 2.77 2.8 8.0.8 8.7.65 8.6 00 7232 7056 6879 6700 6520 6340 660 5785 5369 4925 4455 372.49 26.54 26.60 26.65 25.70 24.76 22.8 2.9 2 2.00 22 2.06 2 2.08 9.4 2.06 9.9 20BHP BCRU / BCRUR / BCRUSH / BCRW / BCRWR HP /2 3/4 -/2 2 3 RPM 730 790 850 895 950 990 050 35 200 250 330 430 Max. Motor Frame = 82T 0.5 0.75.00.25.50.75 2.00 2.25 2.50 2.75 3.00 3.25 2726 280 0.38 9.7 0.42 8.8 37 2628 2040 0.45 0.8 0.5 0.3 0.53 0. 349 304 2574 800 0.54.3 0.6 2.5 0.66. 0.63.4 3762 3344 293 2400 0.6 2. 0.69 3.5 0.75 2.3 0.77 2.3 4085 3705 3296 2876 2287 0.72 3.4 0.79 4.2 0.87 4.3 0.92 3.3 0.9 4.0 437 3959 3569 380 2720 0.80 4.8 0.87 4.8 0.96 5.4.02 4.2.05 4.7 466 4330 3972 3602 3224 275 0.94 6.5.0 5.7.0 7.0.9 6.8.23 5.6.25 6.4 54 4837 4520 48 3840 3489 3064 2302.5 9..24 8..32 8.3.43 9.5.5 8.8.56 8..58 8.6.49 8.4 5504 526 4924 46 4286 3967 3624 323 2503.34 2.43 9.4.52 9.3.62 2.73 2.80 20.85 9.8.86 20.77 20 578 5503 5226 4934 4625 434 4006 3658 3235.50 23.59 2.68 20.78 2.90 22.99 22 2.06 2 2.0 22 2.0 22 622 5958 5699 5434 552 4859 4568 4279 3957 3584 303.77 26.88 24.98 22 2.07 22 2.9 24 2.3 25 2.4 24 2.48 23 2.52 24 2.53 24 2.47 24 6765 6520 6278 6036 5786 5522 5250 4978 47 4430 4 3739 2.6 29 2.28 27 2.39 25 2.50 25 2.60 26 2.73 27 2.87 28 2.97 27 3.05 26 3. 26 3.5 27 3.5 27 NOTES:. Performance certified is for Installation Type A: Free inlet, free outlet. 2. Power rating (BHP) does not include transmission losses. 3. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound ratings shown are loudness values in fan sones at 5 ft. (.5 m) in a hemispherical free field calculated per AMCA Standard 30. 5. Values shown are for Installation Type A: Free inlet hemispherical sone levels. 8 TWIN CITY FAN - CATALOG 405

Belt Driven PERFORMANCE DATA 240B BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 45T HP RPM 0 0.25 0.25 0.375 0.50 0.625 0.75 0.875.00.25.50.75 /4 420 3969 3503 2928 90 0.5 6.7 0.9 6.2 0.22 6.5 0.2 5.0 445 4206 3768 3260 2498 0.8 7.2 0.22 7.0 0.25 7.0 0.26 5.5 /3 470 4442 403 357 293 0.2 8. 0.26 7.8 0.29 7.5 0.3 6.9 485 4584 486 3748 363 2207 0.23 8.3 0.28 8. 0.3 7.8 0.34 7.9 0.32 6.4 /2 530 5009 4648 4259 3797 376 2085 0.30 9.7 0.35 9.6 0.40 8.9 0.43 9.5 0.45 7.8 0.40 7.3 560 5293 4953 4588 482 365 297 0.36 0.5 0.4 0.5 0.46 9.7 0.50 9.9 0.52 9.8 0.5 8.3 3/4 600 567 5355 509 466 4223 3675 2863 0.44 2.0 0.50 2.0 0.55. 0.59 0.9 0.63.3 0.65 0.3 0.6 9.5 635 600 5704 5389 5059 4683 424 3640 2730 0.52 3. 0.58 3. 0.64 2.4 0.69.9 0.73 2. 0.76 2.5 0.77 0.4 0.70 0.4 660 6238 5952 565 5337 4993 4572 4070 339 0.59 3.8 0.65 3.8 0.7 3.3 0.76 2.7 0.80 2.8 0.84 3.4 0.86 2.5 0.84.4 705 6663 6396 68 5827 5522 573 4753 4267 362 0.7 5.3 0.78 5.3 0.85 4.9 0.9 4.2 0.96 4..00 4.6.04 5.2.05 4.2.02 3.4 -/2 750 7088 6838 6578 6308 6029 5728 5376 4967 4500 2966 0.86 6.8 0.93 6.8.00 6.6.07 6.2.2 5.4.7 5.8.22 6.3.25 6.7.27 5.7.2 5.3 80 7655 7424 786 6939 6684 642 635 5806 5430 452.08 9..6 9..24 9..3 8.3.38 8.0.43 7.6.49 7.7.54 8.6.58 9.0.58 8.5 2 850 8033 784 7587 7354 73 6867 6608 632 5993 522 4087.25 20.34 20.42 20.49 9.6.56 9.2.63 8.9.68 8.9.74 9.4.79 2.84 20.75 9.8 890 84 8202 7987 7765 7537 7305 7065 6808 652 584 4996 3602.44 22.53 22.6 22.69 22.77 2.84 20.90 20.96 2 2.0 2 2.0 22 2.0 2.89 2 240BHP BCRU / BCRUR / BCRUSH / BCRW / BCRWR HP /2 3/4 -/2 2 3 RPM 600 650 700 745 780 825 880 940 990 035 0 85 Max. Motor Frame = 82T 0.50 0.625 0.75.00.25.50.75 2.00 2.25 2.50 2.75 3.00 2837 2384 774 0.39 9.8 0.4 8.5 0.39 8.6 3330 2953 2523 0.47.6 0.50 0.9 0.52 9.9 3789 3464 304 284 0.56 2.6 0.60 3.3 0.63 2.3 0.63.3 48 3894 3578 2844 0.65 3.2 0.70 4. 0.73 4.4 0.78 2.2 4473 423 3924 3264 2394 0.73 3.5 0.78 4.4 0.82 5.2 0.89 3.0 0.87 3.0 4838 4607 4348 3765 3078 820 0.83 4. 0.89 4.7 0.94 5.6.02 5.3.06 3.9 0.92 3. 5273 5066 484 4329 374 3043 0.98 5.3.04 5.3.09 6.0.9 7.0.27 5.3.28.52 574 5549 5352 4904 4395 389 325.6 6.5.22 6.2.28 6.5.40 7.9.50 8.0.56 5.9.55 6.5 627 5944 576 5359 4900 4390 388 3090.32 7.8.39 7.6.46 7.3.58 8.2.69 9.3.79 8.4.84 7..79 7.3 6473 6295 62 5753 5333 4870 4355 378 2985.48 9.2.55 8.6.62 8.2.76 8.5.88 9.6.99 9.9 2.07 8.3 2.0 8.4 2.00 8.4 6969 6798 6633 6300 593 559 5072 4580 4040 3328.75 22 8.2 2.89 20 2.04 9.8 2.8 2 2.30 22 2.4 22 2.50 20 2.52 20 2.43 20 762 7450 7293 6987 6670 636 593 558 5069 4585 402 320 2.3 25 2.2 25 2.29 23 2.45 22 2.6 22 2.75 24 2.88 25 3.00 25 3.0 23 3.5 23 3.2 23 2.94 23 NOTES:. Performance certified is for Installation Type A: Free inlet, free outlet. 2. Power rating (BHP) does not include transmission losses. 3. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound ratings shown are loudness values in fan sones at 5 ft. (.5 m) in a hemispherical free field calculated per AMCA Standard 30. 5. Values shown are for Installation Type A: Free inlet hemispherical sone levels. WWW.TCF.COM 9

PERFORMANCE DATA Belt Driven 300B BCRU / BCRUR / BCRUSH / BCRW / BCRWR Max. Motor Frame = 84T HP RPM 0 0.25 0.25 0.375 0.50 0.75.00.25.50.75 2.00 2.25 /3 365 5626 4852 445 0.7 7.4 0.2 6.0 0.26 5.8 390 60 5269 4640 3686 0.2 8.5 0.25 7.0 0.30 6.3 0.33 6.3 /2 430 6628 5934 5383 476 3459 0.27 9.9 0.32 8.7 0.38 7.5 0.43 7.9 0.43 6.3 460 7090 643 5908 5338 4545 0.34.3 0.38 0.2 0.45 8.7 0.5 8.7 0.55 8.7 3/4 500 7707 709 6589 605 5522 0.43 3. 0.48 2.3 0.55 0.3 0.62 9.7 0.68 0.4 530 869 7582 7092 6652 64 4406 0.5 4.3 0.56 3.8 0.63.7 0.7 0.9 0.78.3 0.82 9. 550 8478 7908 7426 7004 6532 563 0.58 5.3 0.62 5.3 0.69 2.6 0.78.8 0.85.7 0.94.6 575 8863 834 7842 7436 7005 5882 0.66 6.6 0.7 6.3 0.78 4.2 0.86 3. 0.95 2.5.06 3.7 -/2 620 9557 9042 8589 898 7823 6926 5433 0.82 8.8 0.87 8.8 0.95 6.9.04 5.7.3 4.8.28 5.7.33 3. 660 073 9686 9252 8868 858 7736 6688 0.99 2.05 2.2 9..2 7.6.3 6.7.49 6.5.6 7.5 2 700 0790 0328 99 9534 999 850 7654 6328.9 23.24 23.3 22.40 9.8.5 8.6.7 8..86 9.2.93 7.3 725 75 0727 032 9949 969 8965 888 720.32 25.37 25.45 23.54 2.64 20.86 9.0 2.03 20 2.4 20 3 780 2023 604 29 0862 0538 9944 9279 8499 737.64 28.70 28.78 27.87 24.97 23 2.2 22 2.42 2 2.58 23 2.67 22 830 2794 2397 203 689 369 0803 0220 9550 874 7549.98 3 2.04 3 2.2 3 2.2 28 2.3 26 2.57 24 2.8 23 3.00 24 3.6 25 3.2 23 5 900 3873 3505 362 2838 2532 983 470 0905 0275 9526 8490 2.52 35 2.59 35 2.67 35 2.76 33 2.87 3 3.2 27 3.40 27 3.65 26 3.85 27 4.02 28 4. 26 985 583 4845 4526 4224 3935 340 2925 2453 929 359 073 9897 3.3 40 3.37 40 3.46 40 3.56 40 3.67 37 3.92 34 4.22 3 4.52 30 4.79 30 5.0 3 5.20 32 5.35 32 300BHP BCRU / BCRUR / BCRUSH / BCRW / BCRWR HP /2 3/4 -/2 2 3 5 RPM 480 55 550 590 600 645 700 740 760 85 900 930 020 0 Max. Motor Frame = 84T 0.50 0.625 0.75.00.25.50.75 2.00 2.25 2.50 2.75 3.00 3604 2806 0.42 7.5 0.42 7.8 480 363 2693 0.50 8.9 0.53 8.7 0.5 8.8 4707 4258 3689 0.58 0.3 0.62 9.8 0.64 0.0 5280 4892 445 289 0.68.4 0.73.8 0.78 0.8 0.75.4 5420 5042 4622 333 0.7.5 0.76.9 0.8.4 0.82.9 6035 5696 5339 4466 0.84 2.4 0.90 3.2 0.96 3.5.04 3.4 6753 6463 646 5457 4536.02 4.0.0 4.3.6 5.2.28 5.4.33 6.0 7256 6998 670 609 5357 4232.7 5.4.25 5.2.32 6.0.46 6.7.55 7..55 7.4 7503 7259 6986 6393 576 4803.24 6.2.33 5.8.4 6..55 7..66 7..70 8. 872 7959 7723 792 6620 5948 5035.48 8.7.57 8.0.66 7.6.83 8.7.96 8.6 2.07 9.5 2.09 20 985 9002 8808 8372 788 7364 6777 6063 4969.89 22 2.00 20 2. 20 2.30 9.7 2.48 2 2.63 2 2.75 20 2.82 22 2.76 22 9537 9363 980 8772 8308 788 7285 6663 5862 444 2.06 23 2.7 22 2.28 2 2.49 20 2.68 2 2.84 22 2.98 2 3.09 22 3.2 22 2.92 22 0584 043 027 993 9545 98 8674 8203 7675 7064 6267 4905 2.62 25 2.74 25 2.86 24 3.0 22 3.32 22 3.53 23 3.72 24 3.88 23 4.0 23 4.0 23 4. 23 3.87 23 69 482 340 042 078 0358 9965 9560 937 868 872 7588 3.27 28 3.4 28 3.54 27 3.8 26 4.06 25 4.30 25 4.53 26 4.73 26 4.92 26 5.08 25 5.2 25 5.29 25 NOTES:. Performance certified is for Installation Type A: Free inlet, free outlet. 2. Power rating (BHP) does not include transmission losses. 3. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound ratings shown are loudness values in fan sones at 5 ft. (.5 m) in a hemispherical free field calculated per AMCA Standard 30. 5. Values shown are for Installation Type A: Free inlet hemispherical sone levels. 20 TWIN CITY FAN - CATALOG 405

Belt Driven PERFORMANCE DATA 360B BCRU / BCRUR / BCRUSH Max. Motor Frame = 84T HP RPM 0 0.25 0.25 0.375 0.50 0.75 0.875.00.25.25.50.75 /2 300 906 7953 6246 3068 0.3 8.7 0.38 7.2 0.44 6.7 0.36 5.4 320 974 8645 7220 4962 0.38 0.0 0.46 8.7 0.53 7.7 0.5 6.4 3/4 340 032 9326 80 674 0.45.4 0.54 0 0.62 8.5 0.63 8. 360 0928 9997 89 7270 490 0.54 2.4 0.63 2 0.72 9.4 0.76 9.9 0.70 8.2 380 535 0659 9664 8270 6400 0.63 3.9 0.72 3.7 0.82 0.8 0.89 0.9 0.88 9.2 400 242 35 0390 927 7548 5207 0.74 4.9 0.83 4.9 0.94 2.2.02 2..04.4 0.94 9.9 -/2 420 2749 966 098 0082 867 6860 0.85 6.2 0.96 6.2.06 3.4.6 2.5.20 3..8 0.9 460 3963 3254 248 636 0557 935 7509 4855.2 8.6.23 8.6.35 6.6.47 4.7.56 4.7.58 4.7.54 2.6.3.9 480 4570 3893 36 2369 435 058 8684 6866.27 9.9.39 9.9.5 8.2.63 6.5.74 5.7.79 6.4.78 4.7.69 3.6 2 494 4995 4339 3632 287 2009 0843 947 7929 5402.39 2.5 2.63 9.4.76 7.4.88 6.4.95 6.8.95 6.5.9 4.5.64 3.7 505 5329 4688 4000 3262 2443 37 0065 8603 648.48 2.6 2.73 20.86 7.9.98 6.9 2.07 7.6 2.09 7.4 2.06 4.9.87 4.6 3 550 6695 609 5489 4828 428 3334 2304 0 9784 582.92 25 2.05 25 2.8 25 2.32 22 2.46 20 2.59 9.9 2.68 20 2.70 20 2.67 8.2 2.24 6.6 575 7454 6895 6306 5682 5026 432 345 2365 86 8327 2.9 26 2.33 26 2.47 26 2.6 25 2.76 23 2.9 2 3.02 22 3.08 22 3.08 2 2.9 8. 5 630 924 866 8085 7530 6947 6340 5682 495 3964 797 933 2.88 32 3.03 32 3.9 32 3.34 30 3.50 28 3.66 27 3.82 25 3.95 25 4.03 26 4.04 24 3.83 22 685 20793 20327 9845 9343 882 8278 775 7 6429 4669 2634 025 3.70 38 3.87 38 4.03 38 4.20 38 4.37 36 4.54 33 4.72 3 4.90 30 5.04 30 5.20 30 5.9 28 4.99 24 360BHP BCRU / BCRUR / BCRUSH HP -/2 2 3 5 7-/2 RPM 420 450 480 503 55 530 570 600 655 700 775 820 885 Max. Motor Frame = 23T 0.50 0.625 0.75.00.25.50.75 2.00 2.25 2.50 2.75 3.00 6363 5408 3478 0.79 9. 0.83 8.3 0.74 8. 7209 653 5477 0.93 0.6.00 0..02 9.6 8024 745 6695.08.4.6 2.0.23 0.8 8640 8057 745 5428.20 2..29 2.9.38 2.9.39.7 8956 8385 780 6099.27 2.8.36 3.6.45 3.7.53 2.3 9345 879 8242 6787.36 3.6.46 3.8.55 4.6.67 3.0 0346 986 9344 8264 654.62 5.3.73 5.3.84 6.2 2.02 5.6 2.06 4.8 067 0638 053 974 7897 550.84 7..96 6.9 2.07 6.9 2.28 8.0 2.42 6.3 2.24 5.8 2345 996 596 0703 979 8558 6490 2.29 2 2.43 9.9 2.56 9.7 2.80 20 3.02 20 3.5 8.4 3.00 8.5 3367 3057 277 96 08 083 8930 6922 2.70 23 2.86 23 3.00 22 3.27 22 3.52 23 3.74 22 3.86 2 3.66 2 5038 4773 4493 3862 38 2365 584 06 9274 737 3.5 27 3.69 26 3.85 25 4.8 24 4.47 24 4.74 26 5.00 25 5.9 24 5.22 24 4.83 24 6026 5782 5526 4969 430 3590 2882 225 80 9924 8056 4.07 30 4.26 30 4.44 28 4.79 27 5. 26 5.4 27 5.70 27 5.96 27 6.5 26 6.9 26 5.87 26 744 722 6992 6506 5959 5328 4660 4005 3322 2525 50 098 4.99 33 5.9 33 5.39 32 5.77 3 6.4 29 6.48 29 6.8 30 7.2 3 7.4 3 7.65 30 7.78 29 7.72 30 NOTES:. Performance certified is for Installation Type A: Free inlet, free outlet. 2. Power rating (BHP) does not include transmission losses. 3. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound ratings shown are loudness values in fan sones at 5 ft. (.5 m) in a hemispherical free field calculated per AMCA Standard 30. 5. Values shown are for Installation Type A: Free inlet hemispherical sone levels. WWW.TCF.COM 2

PERFORMANCE DATA Belt Driven 420B BCRU / BCRUSH Max. Motor Frame = 23T HP RPM 0 0.25 0.25 0.375 0.50 0.625 0.75.00.25.50.75 2.00 /2 230 994 8009 6065 0.24 5.4 0.32 4.3 0.38 4 260 0393 9364 8097 0.35 6.9 0.44 6 0.54 6.2 3/4 290 592 0684 9667 8042 0.48 8.6 0.59 8 0.70 7.2 0.77 7 320 279 977 084 0008 857 0.65 0.5 0.76 0. 0.88 8.6.00 9.7.03 7.8 -/2 365 4590 3884 322 233 292 9693 0.96 2.9.09 2.9.23.4.37.2.49 2.53 0.7 2 405 689 5557 4886 476 3420 2439 003.3 5.2.46 5.2.6 4.4.76 3.4.9 3.6 2.04 4.3 2.09 2.7 3 435 7388 6802 685 5533 4859 407 3082 989.62 6.6.78 6.6.94 6.4 2.0 4.6 2.27 4.5 2.43 5.4 2.54 5.4 2.52 2.8 460 8387 7834 7256 6648 609 5356 4574 23.92 7.8 2.09 7.8 2.26 7.6 2.43 6.4 2.60 5.5 2.78 6 2.93 7 3.07 4.6 5 505 2086 9684 964 8622 8057 748 6874 5280 287 2.54 9.9 2.73 9.9 2.9 9.9 3.0 8.8 3.28 7.7 3.47 7.4 3.67 7.6 3.97 8.7 4.05 5.5 550 2985 2525 205 20562 20056 9532 9002 7833 69 3768 3.28 22 3.48 22 3.69 22 3.89 22.0 4.09 2 4.29 9.5 4.50 9.2 4.9 20.0 5.8 20 5.23 8 7-/2 590 23583 2356 2277 22266 280 2322 20832 987 8599 6790 45 4.05 25 4.27 25 4.48 25 4.70 25.0 4.92 24 5.3 23 5.35 22 5.8 22 6.2 23 6.43 23 6.44 20 630 2582 24783 24374 23955 23525 23084 22630 2705 20704 9426 7623 5446 4.94 27 5.7 27 5.40 27 5.63 27 5.86 27 6.09 26 6.32 25 6.80 24 7.27 25 7.65 26 7.84 25 7.84 22 480B BCRU / BCRUSH HP /2 RPM 95 20 3/4 240 265 -/2 305 2 335 3 5 7-/2 355 380 420 455 490 520 Max. Motor Frame = 23T 0 0.25 0.25 0.375 0.50 0.625 0.75 0.875.25.00.25.50 0945 99 5902 0.28 4.9 0.37 4. 0.39 3. 787 039 777 0.35 5.7 0.44 5.0 0.52 4.6 347 992 0523 7433 0.53 7.4 0.63 6.7 0.73 6.8 0.74 4.7 4874 3524 2298 0274 5367 0.7 8.9 0.82 8.3 0.93 7.6.03 7.8 0.80 5.2 79 5938 4837 3724 769 8678.08.7.2.7.34 0.3.47 0.2.58 0.3.46 7.5 8803 7723 6688 5742 4525 2580 9692.43 4.2.58 4.2.72 2.4.86.9 2.00 2.6 2.0.9.95 9.4 9925 8905 796 703 6048 4490 2557 8406.70 5.3.86 5.3 2.0 4.2 2.6 3.2 2.30 3.2 2.45 3.7 2.49 2.2 2.08 0. 2329 20373 9444 8572 7735 668 5024 380 983 2.09 7.3 2.26 7.3 2.42 6.2 2.58 5.0 2.73 4.7 2.89 4.9 3.03 5. 3.05 3.5 2.58 2.0 23574 22707 2860 2035 20277 950 8564 74 5543 3549 874 2.82 20 3.0 20 3.9 20 3.37 7.8 3.54 7.3 3.7 7.2 3.88 7.5 4.06 7.6 4.3 7.3 4.04 4.8 3.23 3.8 25538 24737 2395 2380 22446 2756 2036 2055 889 745 5845 3.59 23 3.79 23 3.99 23 4.8 2 4.37 9.9 4.56 9.3 4.74 9.0 4.93 9.8 5.2 20 5.24 9.9 5.23 7.9 27503 26757 26025 25304 24598 23940 23300 22624 287 2073 9342 6340 4.48 25 4.70 25 4.9 25 5.2 25 5.33 23 5.53 22 5.73 2 5.93 2 6.3 22 6.34 23 6.5 23 6.48 9.3 2987 28483 2779 2709 26437 2579 2584 24577 23930 2362 2243 9588 5.35 28 5.59 28 5.82 28 6.04 28 6.26 26 6.48 25 6.69 24 6.90 23 7. 23 7.32 24 7.55 25 7.84 24 NOTES:. Performance certified is for Installation Type A: Free inlet, free outlet. 2. Power rating (BHP) does not include transmission losses. 3. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound ratings shown are loudness values in fan sones at 5 ft. (.5 m) in a hemispherical free field calculated per AMCA Standard 30. 5. Values shown are for Installation Type A: Free inlet hemispherical sone levels. 22 TWIN CITY FAN - CATALOG 405

DIMENSIONAL DATA Models DCRU, DCRUR Dimensional Data and Weights A DIA. MODEL AVG. EC MTR PSC MTR A B C E UNIT WT. (LB.) 073BE 07-073B 22.00 24.44 8.00 7.00 00 083BE 08-083B 22.00 24.44 8.00 7.00 00 093BE 09-093B 22.00 26.3 8.00 20.00 20 0BE 0B 30.00 28.3 28.00 24.00 35 20BE 20B 30.00 27.9 28.00 24.00 35 40BE 40B 30.00 27.68 28.00 24.00 45 60BE 60B 30.00 29.8 28.00 24.00 80 80BE 80B 36.00 29.7 30.00 30.00 80 C B Dampers and Roof Curbs E SQUARE CURB SIZE 2.00 CURB DAMPER DCRU MODEL DCRUR DAMPER SIZE* STANDARD SELF FLASH CURB SIZE CURB SIZE ROOF OPENING 073BE 073BE 0 x 0 5 2 x 5 2 6 2 x 6 2 0 2 x 0 2 083BE 083BE 0 x 0 5 2 x 5 2 6 2 x 6 2 0 2 x 0 2 093BE 093BE 4 x 4 8 2 x 8 2 9 2 x 9 2 4 2 x 4 2 0BE 0BE 8 x 8 22 2 x 22 2 23 2 x 23 2 8 2 x 8 2 20BE 20BE 8 x 8 22 2 x 22 2 23 2 x 23 2 8 2 x 8 2 40BE 40BE 8 x 8 22 2 x 22 2 23 2 x 23 2 8 2 x 8 2 60BE 60BE 8 x 8 22 2 x 22 2 23 2 x 23 2 8 2 x 8 2 80BE 80BE 24 x 24 28 2 x 28 2 29 2 x 29 2 24 2 x 24 2 *DCRU Only D-4407E D-4408E ROOF OPENING (DAMPER SIZE + 0.50 INCHES) * Damper not available on DCRUR. Notes:. All dimensions are in inches unless otherwise noted. 2. Dimensions are not to be used for construction. 3. Damper sizes are nominal. 4. Outside dimensions of roof curb should be " to.50" less than inside curb cap dimension 'E', depending on thickness of flashing material used. If curb hinges are used, specify.50" difference. 5. DCRUR (Kitchen Exhaust) provided with self flashing, vented, 2" high curb, built to 'standard' curb size dimensions above. WWW.TCF.COM 23

DIMENSIONAL DATA Models BCRU, BCRUR Dimensional Data and Weights C A DIA. E SQUARE CURB SIZE ROOF OPENING (DAMPER SIZE + 0.50 INCHES) * Damper not available on BCRUR. B 2.00 CURB DAMPER MODEL BCRU BCRUR Dampers and Roof Curbs A B C E AVG. UNIT WT. (LBS.) 0B 0B 30.00 28.56 28.00 24.00 35 20B 20B 30.00 27.9 28.00 24.00 35 40B 40B 30.00 27.68 28.00 24.00 45 40BHP 40BHP 30.00 28.58 28.00 24.00 35 60B 60B 30.00 29.8 28.00 24.00 80 60BHP 60BHP 30.00 27.68 28.00 24.00 35 60BMP 60BMP 30.00 28.44 28.00 24.00 80 80B 80B 36.00 32.3 30.00 30.00 80 80BMP 80BMP 36.00 29.9 30.00 30.00 80 80BHP 80BHP 36.00 3.00 30.00 30.00 80 20B 20B 45.00 35.6 28.25 34.00 245 20BHP 20BHP 45.00 32.94 28.25 34.00 245 240B 240B 45.00 37.56 28.25 34.00 245 240BHP 240BHP 45.00 34.3 28.25 34.00 245 300B 300B 54.00 38.25 3.00 40.00 365 300BHP 300BHP 54.00 34.88 3.00 40.00 365 360B 360B 63.00 43.88 34.00 46.00 375 360BHP 360HP 63.00 39.68 34.00 46.00 375 420B 69.00 46.75 36.00 52.00 385 480B 75.00 49.3 39.00 58.00 490 MODEL DAMPER STANDARD SELF FLASH ROOF BCRU BCRUR SIZE* CURB SIZE CURB SIZE OPENING 0B 0B 8 x 8 22 2 x 22 2 23 2 x 23 2 8 2 x 8 2 20B 20B 8 x 8 22 2 x 22 2 23 2 x 23 2 8 2 x 8 2 40B 40B 8 x 8 22 2 x 22 2 23 2 x 23 2 8 2 x 8 2 60B 60B 8 x 8 22 2 x 22 2 23 2 x 23 2 8 2 x 8 2 80B 80B 24 x 24 28 2 x 28 2 29 2 x 29 2 24 2 x 24 2 20B 20B 28 x 28 32 2 x 32 2 33 2 x 33 2 28 2 x 28 2 240B 240B 28 x 28 32 2 x 32 2 33 2 x 33 2 28 2 x 28 2 300B 300B 34 x 34 38 2 x 38 2 39 2 x 39 2 34 2 x 34 2 360B 360B 40 x 40 44 2 x 44 2 45 2 x 45 2 40 2 x 40 2 420B 46 x 46 50 2 x 50 2 5 2 x 5 2 46 2 x 46 2 480B 50 x 50 56 2 x 56 2 57 2 x 57 2 50 2 x 50 2 *BCRU Only D-440H D-4402H Notes:. All dimensions are in inches unless otherwise noted. 2. Dimensions are not to be used for construction. 3. Damper sizes are nominal. 4. BCRUR (Kitchen Exhaust) provided with self flashing, vented, 2" high curb, built to 'standard' curb size dimensions above. 24 TWIN CITY FAN - CATALOG 405

DIMENSIONAL DATA Models DCRW, DCRWR MOUNTING BRACKET C 5/6" ANCHOR STUD (8) WALL OPENING H 4.00 STD & 0.00 W/DAMPER E SQUARE A DIA. D SQUARE WALL F 6.78 6.78 * Damper not available on DCRWR. 2.00 B MOUNTING BRACKET HOLE MOUNTING PATTERN Dimensional Data and Weights MODEL EC MTR PSC MTR A B C D E F AVG. UNIT WT. (LB.) DAMPER SIZE* WALL MTG. BRACKET WALL OPENING (H) 073BE 07-073B 22.00 24.44 8.00 8.56 7.00 5.00 00 0 x 0 6 3 4 x 6 3 4 0 2 x 0 2 083BE 08-083B 22.00 24.44 8.00 8.56 7.00 5.00 00 0 x 0 6 3 4 x 6 3 4 0 2 x 0 2 093BE 09-093B 22.00 26.3 8.00 2.56 20.00 8.00 20 4 x 4 9 3 4 x 9 3 4 4 2 x 4 2 0BE 0B 30.00 28.3 28.00 25.56 24.00 2.00 35 7 x 7 23 3 4 x 23 3 4 7 2 x 7 2 20BE 20B 30.00 27.9 28.00 25.56 24.00 2.00 35 7 x 7 23 3 4 x 23 3 4 7 2 x 7 2 40BE 40B 30.00 27.68 28.00 25.56 24.00 2.00 45 7 x 7 23 3 4 x 23 3 4 7 2 x 7 2 60BE 60B 30.00 29.8 28.00 25.56 24.00 2.00 80 7 x 7 23 3 4 x 23 3 4 7 2 x 7 2 80BE 80B 36.00 29.7 30.00 3.56 30.00 8.00 80 24 x 24 29 3 4 x 29 3 4 24 2 x 24 2 *DCRW Only Notes:. All dimensions are in inches unless otherwise noted. 2. Dimensions are not to be used for construction. 3. Damper sizes are nominal. D-4409H D-440F WWW.TCF.COM 25

DIMENSIONAL DATA Models BCRW, BCRWR C MOUNTING BRACKET 5/6" ANCHOR STUD (8) WALL OPENING H 4.00 STD & 0.00 W/DAMPER E SQUARE A DIA. D SQUARE WALL F 6.78 6.78 * Damper not available on BCRWR. 2.00 B MOUNTING BRACKET HOLE MOUNTING PATTERN Dimensional Data and Weights MODEL B AVG. UNIT DAMPER WALL MTG. WALL A C D E F BCRW BCRWR MAX. WT. (LB.) SIZE* BRACKET OPENING (H) 0B 0B 30.00 28.56 28.00 25.56 24.00 2.00 35 7 x 7 23 3 4 x 23 3 4 7 2 x 7 2 20B 20B 30.00 27.9 28.00 25.56 24.00 2.00 35 7 x 7 23 3 4 x 23 3 4 7 2 x 7 2 40B 40B 30.00 28.56 28.00 25.56 24.00 2.00 45 7 x 7 23 3 4 x 23 3 4 7 2 x 7 2 60B 60B 30.00 29.8 28.00 25.56 24.00 2.00 80 7 x 7 23 3 4 x 23 3 4 7 2 x 7 2 80B 80B 36.00 32.3 30.00 3.56 30.00 8.00 80 24 x 24 29 3 4 x 29 3 4 24 2 x 24 2 20B 20B 45.00 35.6 28.25 35.56 34.00 22.00 245 27 x 27 33 3 4 x 33 3 4 27 2 x 27 2 240B 240B 45.00 37.56 28.25 35.56 34.00 22.00 245 27 x 27 33 3 4 x 33 3 4 27 2 x 27 2 300B 300B 54.00 38.25 3.00 4.56 40.00 28.00 365 33 x 33 39 3 4 x 39 3 4 33 2 x 33 2 *BCRW Only D-4403L D-4406G Notes:. All dimensions are in inches unless otherwise noted. 2. Dimensions are not to be used for construction. 3. Damper sizes are nominal. 26 TWIN CITY FAN - CATALOG 405

DIMENSIONAL DATA Model BCRUSH C A DIA. B Dimensional Data and Weights MODEL B AVG. UNIT A C E BCRUSH MAX. WT. (LB.) 0B 30.00 28.56 28.00 24.00 53 20B 30.00 27.9 28.00 24.00 58 40B 30.00 28.56 28.00 24.00 73 60B 30.00 29.8 28.00 24.00 83 80B 36.00 32.3 30.00 30.00 223 20B 45.00 35.6 28.25 34.00 252 240B 45.00 37.56 28.25 34.00 272 300B 54.00 38.25 3.00 40.00 437 360B 63.00 43.88 34.00 46.00 629 420B 69.00 46.75 36.00 52.00 647 480B 75.00 49.3 39.00 58.00 823 2.00 Dampers and Roof Curbs MODEL BCRUSH STANDARD CURB SIZE ROOF OPENING E SQUARE CURB SIZE ROOF OPENING CURB 0B 22 2 x 22 2 8 2 x 8 2 20B 22 2 x 22 2 8 2 x 8 2 40B 22 2 x 22 2 8 2 x 8 2 60B 22 2 x 22 2 8 2 x 8 2 80B 28 2 x 28 2 24 2 x 24 2 20B 32 2 x 32 2 28 2 x 28 2 240B 32 2 x 32 2 28 2 x 28 2 300B 38 2 x 38 2 34 2 x 34 2 360B 44 2 x 44 2 40 2 x 40 2 420B 50 2 x 50 2 46 2 x 46 2 480B 56 2 x 56 2 50 2 x 50 2 D-440-E Notes:. Standard curb is self-flashing, vented. 2. All dimensions are in inches unless otherwise noted. 3. Dimensions are not to be used for construction. WWW.TCF.COM 27

TYPICAL SPECIFICATIONS Models DCRU, DCRUR, DCRW, DCRWR Roof and wall mounted exhaust fans shall be of the direct drive centrifugal type and shall be DCRU (upblast); DCRUR (upblast kitchen exhaust); DCRW (wall mount); and DCRWR (wall mount kitchen exhaust) as manufactured by Twin City Fan & Blower, Minneapolis, Minnesota. PERFORMANCE Fans shall be tested in accordance with AMCA 20 and AMCA 300 test codes for air moving devices and shall be guaranteed by the manufacturer to deliver rated published performance levels. Fans shall be licensed to bear the AMCA certified ratings seal for both sound and air. Models DCRU, and DCRW shall be CULUS 705 listed. Models DCRUR and DCRWR shall be CULUS 762 listed for the exhaust of grease-laden air. CONSTRUCTION Fans shall be constructed of aluminum for durability and appearance. Fan spinnings shall have a rolled bead edge for rigidity. Units shall have a deep venturi inlet to prevent snow and rain entry into the building. The curb cap shall include prepunched mounting holes for ease of installation. A conduit chase constructed of electrical metallic tubing shall be provided to the motor compartment. The curb base shall provide protection from weather. Lifting lugs shall be provided inside the motor compartment for ease of handling and installation. Fans shall bear a permanently attached nameplate displaying model and serial number of the unit for future identification. MOTOR ASSEMBLY Motor assembly shall be mounted on vibration isolators to eliminate vibration and noise transmission into the ductwork. Motors shall be mounted out of the exhaust airstream and shall have a cooling tube that provides air separate from the exhaust. WHEEL Fan wheels shall be of the centrifugal backward inclined type, constructed of aluminum and containing a matching inlet venturi for optimum unit performance. Wheels shall be statically and dynamically balanced. MOTOR Motors shall be heavy-duty ball bearing type, closely matched to the fan load. All single-phase ODP motors shall contain thermal overload protection. All motors shall be CULUS recognized. Motors for use with speed control shall provide good speed controllability without any objectionable noise. DISCONNECT SWITCH A NEMA disconnect switch shall be supplied with wiring leading from the motor to the junction box on models DCRU and DCRW. A NEMA 3R disconnect switch shall be supplied with wiring leading from the motor to a junction box located outside of the motor compartment on models DCRUR and DCRWR. FINISH AND COATING Fans shall be constructed of aluminum. Optional coatings shall be available. ACCESSORIES When specified, accessories such as backdraft damper, roof curb, curb hinge, retaining chain, security hasp, variable speed controller, NEMA 4 disconnect switch, 2-speed switch, firestat, aluminum bird screen, aluminum insect screen, and special coatings 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 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 Grade G6.3. Balance readings shall be taken by electronic type equipment in the axial, vertical, and horizontal directions. Records shall be maintained and a written copy shall be available upon request. GUARANTEE The manufacturer shall guarantee the workmanship and materials for its roof and wall mounted centrifugal exhaust fans for at least one () year from startup or eighteen (8) months from shipment, whichever occurs first. 28 TWIN CITY FAN - CATALOG 405

TYPICAL SPECIFICATIONS Models BCRU, BCRUR, BCRW, BCRWR, BCRUSH Roof and wall mounted exhaust fans shall be of the belt driven centrifugal type and shall be BCRU (upblast); BCRUR (upblast kitchen exhaust); BCRUSH (smoke and heat exhaust); BCRW (wall mount); and BCRWR (wall mount kitchen exhaust) as manufactured by Twin City Fan & Blower, Minneapolis, Minnesota. PERFORMANCE Fans shall be tested in accordance with AMCA 20 and AMCA 300 test codes for air moving devices and shall be guaranteed by the manufacturer to deliver rated published performance levels. Fans shall be licensed to bear the AMCA certified ratings seal for both sound and air. Models BCRU, and BCRW shall be CULUS 705 listed. Models BCRUR and BCRWR shall be CULUS 762 listed for the exhaust of grease-laden air. Model BCRUSH shall be UL listed for Smoke Control Systems (500 F for 4 hours and 000 F for 5 minutes). CONSTRUCTION Models BCRU, BCRUR, BCRW, BCRWR and BCRUSH shall be constructed of aluminum for durability and appearance. Fan spinnings shall have a rolled bead edge for rigidity. Units shall have a deep venturi inlet to prevent snow and rain entry into the building. The curb cap shall include prepunched mounting holes for ease of installation. A conduit chase constructed of electrical metallic tubing shall be provided to the motor compartment. The curb base shall provide protection from weather. Lifting lugs shall be provided inside the motor compartment for ease of handling and installation. Fans shall bear a permanently attached nameplate displaying model and serial number of the unit for future identification. Model BCRUSH shall have aluminum nameplate. Fiberglass insulation on model BCRUSH shall line the bottom of the motor compartment to protect motor and drive components from heat. MOTOR AND DRIVE ASSEMBLY Motor and drive assembly shall be mounted on vibration isolators to eliminate vibration and noise transmission into the ductwork. Motors and drives shall be mounted out of the exhaust airstream and shall have a cooling tube that provides air separate from the exhaust. Model BCRUSH shall have a minimum of three cooling tubes. WHEEL Fan wheels shall be of the centrifugal backward inclined type, containing a matching inlet venturi for optimum unit performance. Fan wheels on models BCRU, BCRUR, BCRW and BCRWR shall be constructed of aluminum. Fan wheels on model BCRUSH shall be constructed of steel. Wheels shall be statically and dynamically balanced. SHAFT Fan shafts shall be precision-ground and polished. Shafts shall have a first critical speed of at least 25% of the fan s maximum operating speed. BEARINGS Bearings shall be of the one-piece, pillow block type with relubricable zerk fittings. Bearings shall be designed for air handling service with a minimum L-0 life in excess of 00,000 hours; L-50 500,000 hours at the maximum cataloged operating speed. Bearing mounting plate shall have self-aligning tabs for exact locating and alignment of bearings. DRIVE Drive assembly shall be constructed of heavy-gauge galvanized steel. Drives shall be sized for a minimum of 50% of driven horsepower. Machined, cast iron motor sheaves shall be adjustable for final system balance. Model BCRUSH shall have 2-groove drives. MOTOR Motors shall be heavy-duty ball bearing type, closely matched to the fan load. All single-phase ODP motors shall contain thermal overload protection. All motors shall be CULUS recognized. Motor adjustment shall allow precise belt tensioning for optimum belt life and one-person adjustment and servicing. DISCONNECT SWITCH A NEMA disconnect switch shall be supplied with wiring leading from the motor to the junction box on models BCRU and BCRW. A NEMA 3R disconnect switch shall be supplied with wiring leading from the motor to a junction box located outside of the motor compartment on models BCRUR, BCRWR and BCRUSH. FINISH AND COATING Models BCRU, BCRUR, BCRW, BCRWR and BCRUSH shall be constructed of aluminum. Optional coatings shall be available. ACCESSORIES When specified, accessories such as backdraft damper, roof curb, curb hinge, retaining chain, security hasp, NEMA 4 disconnect switch, 2-speed switch, firestat, steel premium grease fan construction, aluminum bird screen, aluminum insect screen, and special coatings 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 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 Grade G6.3. 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. GUARANTEE The manufacturer shall guarantee the workmanship and materials for its roof and wall mounted centrifugal exhaust fans for at least one () year from startup or eighteen (8) months from shipment, whichever occurs first. WWW.TCF.COM 29

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 Gravity 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 Companies, Ltd. A Twin City Fan Company TWIN CITY FAN & BLOWER WWW.TCF.COM 5959 Trenton Lane N Minneapolis, MN 55442 Phone: 763-55-7600 Fax: 763-55-760 207 Twin City Fan Companies, Ltd., Minneapolis, MN. All rights reserved. Catalog illustrations 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.