Steel and Aluminum Utility Vent Sets

Transcription

1 CP

2 Steel and Aluminum Utility Vent Sets Page Introduction Standard Construction Features Specifications & Dimensions Belt Drives Backward Inclined Flat Blade Wheel: CPV (Aluminum Wheel / Steel Scroll) CPS (Steel Wheel / Steel Scroll) CPA (Aluminum Wheel / Aluminum Scroll) Backward Inclined Airfoil Wheel: CPS-A (Steel Wheel / Steel Scroll) CPA-A (Aluminum Wheel / Aluminum Scroll) Forward Curved Wheel: CPFB (Steel Wheel / Steel Scroll) Direct Drive Forward Curved Wheel: CPFD (Steel Wheel / Steel Scroll) Rotation & Discharge Construction Information UL Options Accessories Performance Data CPV, CPS, CPA, CPS-A & CPA-A CPFD CPFB Sound Data CPV CPS & CPA CPS-A & CPA-A CPFD & CPFB

3 INTRODUCTION Loren Cook Company CP centrifugal utility vent sets offer durability and reliability in a self-contained package. CP s are ideal for low to medium volume and pressure applications. They are available in a number of wheel options for maximum performance flexibility. Produced in an ISO Certified facility. Listed by Underwriters Laboratory (UL 5) and UL Listed for Canada (cul 5). Rotatable housing is standard on all models. Discharge flanges are standard on all belt drive models, except in downblast or bottom angular down discharge positions (see page 7). Belt Drives Backward Inclined Flat Blade Wheel: CPS, CPA & CPV Licensed to bear AMCA Certified Ratings Seals for Air and Sound Performance. UL/cUL listing for restaurant applications available. Steel Wheel / Steel Scroll (CPS) Aluminum Wheel / Aluminum Scroll (CPA) Wheel Sizes: - 49 Capacity: - 49,5 CFM Static Pressure: - 8 Class I or Class II (size - 365) CPA is Spark Resistant Type A construction (see page ) Aluminum Wheel / Steel Scroll (CPV) Wheel Sizes: - 49 Capacity: 5-43,4 CFM Static Pressure: -.5 CPV shown. All belt drive units use this body style. Backward Inclined Airfoil Wheel: CPS-A & CPA-A Licensed to bear AMCA Certified Ratings Seals for Air and Sound Performance. UL/cUL listing for restaurant applications available. Steel Wheel / Steel Scroll (CPS-A) Aluminum Wheel / Aluminum Scroll (CPA-A) Wheel Sizes: - 49 Capacity: - 53,55 CFM Static Pressure: - 8 Class I or Class II (size - 365) CPA-A is Spark Resistant Type A construction. (see page ) CPS-A is available with UL/cUL listing for Power Ventilator for Smoke Control Systems. Forward Curved Wheel: CPFB Licensed to bear AMCA Certified Ratings Seal for Air and Sound Performance. Steel Wheel / Steel Scroll (CPFB) Wheel Sizes: - 3 Capacity: 5-5, CFM Static Pressure: - Direct Drives Forward Curved Wheel: CPFD Steel Wheel / Steel Scroll (CPFD) Wheel Sizes: 6 - Capacity: 3 -,635 CFM Static Pressure: - The Wheels CPV uses a riveted aluminum wheel, with backward inclined flat blades. CPS uses a welded, Lorenized TM steel wheel, with backward inclined flat blades. CPA uses a welded, aluminum wheel. CPS-A uses a welded, Lorenized TM steel wheel, with backward inclined airfoil blades. CPA-A uses a welded, aluminum wheel. CPFD CPFD & CPFB use a steel wheel, with forward curved blades.

4 STANDARD CONSTRUCTION FEATURES About Centrifugal Fans A centrifugal wheel brings air in parallel to the axis of rotation and discharges air perpendicular to the axis of rotation. The air then follows the shape of the fan to the outlet. As a general rule, it is preferred for higher pressure exhaust and ducted systems. Shrowd Blade type: Backward Inclined Airfoil: Has the highest efficiency of all of the centrifugal impeller designs with blades of airfoil contour curved away from the direction of rotation. Air leaves the impeller at a velocity less than its tip speed. Relatively deep blades provide for efficient expansion with the blade passages. For the given duty, the airfoil impeller design will provide for the highest speed of the centrifugal fan designs. Backward Inclined Flat Blades: Efficiency is slightly less than that of the airfoil design. Blades are single thickness metal inclined away from the direction of rotation. Air leaves the impeller at a velocity less than its tip speed. Relatively deep blades provide efficient expansion with the blade passages. Backplate Blade Shown from the inlet side / opposite the drive shaft Forward Curved: Efficiency is less than airfoil and backward curved bladed impellers. Has blades with both the heel and tip curved forward. Air leaves the impeller at velocities greater than the impeller tip speed. For the given duty, the wheel is the smallest of all of the centrifugal types and operates most efficiently at lowest speed. Lorenized TM Powder Coating Lifting Lugs Scroll Housing Continuously Welded Housing Air-Handling Quality, Regreasable, Ball Bearings Flanged Field Rotatable Housing Adjustable Motor plate 3

5 CPV Specifications Centrifugal Vent Set Blower Backward Inclined Aluminum Wheel Steel Housing Belt Drive Loren Cook Company certifies that the CPV shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication and AMCA Publication 3 and comply with the requirements of the AMCA Certified Ratings Program. Type CPV is furnished standard with UL 5 listing ( C UL 5) when furnished with factory supplied motor. Type CPV is available with UL listing ( C UL ) when furnished with factory supplied motor. Description: Fan shall be a single width, single inlet, backward inclined flat blade, belt driven centrifugal vent set. Certifications: Fan shall be manufactured at an ISO certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 5) for US and Canada. For restaurant applications, fan shall be listed by Underwriters Laboratories (UL/cUL ) for US and Canada. Fan shall bear the AMCA Certified Ratings Seal for Sound and Air performance. Construction: The fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The scroll wrapper shall be minimum 4 gauge steel and the scroll side panels shall be minimum gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. The fan housing shall be field rotatable to any one of eight discharge positions and shall have a minimum -/ inch outlet discharge flange. Bearing support shall be minimum gauge welded steel. Side access inspection ports shall be provided with quick release latches for access to the motor compartment without removing the weather cover. Lifting lugs shall be provided for ease of installation. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure, and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging. Coating: Steel fan components shall be Lorenized TM with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum mil thick baked powder finish. Paint must exceed, hour salt spray under ASTM B7 test method. Wheel: Wheel shall be centrifugal backward inclined, constructed of % aluminum, including a precision machined cast aluminum hub. Wheel hub shall be keyed and securely attached to the fan shaft. Wheel inlet shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 4-5, Balance Quality and Vibration Levels for Fans. Motor: Motor shall be NEMA Design B with Class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure. Blower Shaft: Blower shaft shall be AISI C-45 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 5% of maximum RPM. Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillowblock housing selected for a minimum L5 life in excess of, hours at maximum cataloged operating speed. Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 5% of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM. Product: Fan shall be model CPV as manufactured by Loren Cook Company of Springfield, Missouri. 4

6 Dimensions CPV T Z Discharge L Centerline K Shaft Centerline -/" V E F V H D Weather Cover Optional R Q U J A ID U U X B ID P U C OD Y Y G S Dia. CPV Dimensions Size A B C D E F G H J K L M 6 7-9/6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 7-9/6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 7-9/6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 7-9/6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 9-3/6 3-/8 6-/ /6 3-3/8 9-3/8 6-/4-3/8-7/8 3-/8 35-5/6 4-3/4 7-5/8 8 6-/6 3-7/8 9-3/8 7 3-/ 3 5-/8 5-7/6 6-7/6 9-/8 9-/6 9-9/6 5-5/6 9-3/8 9-/6 4-5/8 4-/8 5-/8 65-5/8 8-/6-3/6-7/6 3-/6 6-3/8 9-3/8 3-7/6 5-3/6 5-5/6 5-/8 3-3/4 9-/6 -/6 -/6 34-3/4 7-5/8-3/8 33-9/6 6-5/6 6-7/6 5-/8 4-5/6-5/6 4-3/6 3-/6 36-5/6 7-3/6-3/8 35-/6 8-3/ /8 8-/8 6-/ /6 5-3/8 39-5/6-3/8 38-7/8 9-5/ /4 8-/ /6 4-5/8 7-7/ /8-7/8 4-7/ /8 8-/ /4 6-3/6 9-7/6 9-5/8 45-/6-3/4 3-3/8 44-5/ /6 8-/8-5/8 9-9/6 3-5/6 3-3/8 49-/6 3-3/8 4-3/8 48-7/8 4-7/ /6 -/8 3-5/6 3-3/6 34-5/6 35-5/8 54-3/8 5-7/8 5-5/6 53-5/8 7-3/ / /4 36-/8 37-5/6 38-7/8 59-3/6 8-7/6 6-3/6 58-3/8 9-7/ /6-3/ /8 39-5/6 4-7/6 4-3/4 -/8 3-7/6 7-3/6 64-/4 3-/6 3-5/6 4-3/ /4 44-/6 45-3/6 46-3/4-5/6 34-/6 9-3/6 -/4 34-5/6 34-5/6 4-3/ /6 49-7/6 5-3/8-9/6 38-5/6-3/6-7/8 38-3/ /6 8-3/ /6 53-5/ /4-3/4 4-3/6 3-3/6 -/4 4-5/ /6 G W M N G G Side Size N P Q R S T U V W X Y Z Max. Motor Frame * Ship Wt /8 3-3/8 3 3/4 9/6 3/4-5/ /6 8-5/8 4-5/8 45T /8 3-3/8 3 3/4 9/6 3/4-5/ /6 8-5/8 4-5/8 45T /8 3-3/8 3 3/4 9/6 3/4-5/ /6 8-5/8 4-5/8 45T /8 3-3/8 3 3/4 9/6 3/4-5/ /6 8-5/8 4-5/8 45T /6 3 3/4 9/6 3/4-5/ /6 8-5/8 5-7/6 T /8 34-3/6 3 3/4 9/6 3/4-5/ /6 8-5/8 6 T /4 37-/8 3 3/4 9/6 3/4-5/ /8 8-5/8 6-9/6 T /6 39-7/8 3 3/4 9/6 3/4-5/ /4 8-5/8 7-3/6 T /6 43-/8 3 9/6 3/4-5/ /8 9-5/8 7-3/4 5T /4 46-3/8 3 9/6 3/4-5/ / 9-5/8 8-5/6 5T 3 7-7/8 49-3/4 4 9/6 3/4-5/ /6-5/8 8-7/8 5T /6 3/4-5/8 -/ 5 7-3/6 -/8 9-7/6 5T /6 58-/4 4 /6 -/8 -/ 5 3-3/8 -/ 5T 57-5/6 63-3/4 4 /6 -/8 -/ /4 3-3/8-7/6 56T /6 7-/4 4-3/6 /6 -/8 3-/ /6-5/8 56T /8-3/4 4-3/6 3/6 -/ /6 5-3/6 3-3/4 56T /4 -/ 5-3/6 3/6 -/ /6 6-3/6 5-/6 34T 4 34-/8 -/ 5-7/6 3/6 -/ /6 8-3/6 7 34T /8-3/4 5-7/6 3/6 -/ /6-3/6 8-5/8 36T /6 -/ 5-7/6 3/6 -/ /8-3/6-3/8 36T 4 All dimensions in inches. Weight in lbs., less motor. For other discharge dimensions, please consult page 7, Compute-A-Fan, an authorized representative or the factory. *Based on open drip proof, single speed. 5

7 CPS Specifications Centrifugal Utility Vent Set Blower Backward Inclined Wheel Steel Construction Belt Drive Loren Cook Company certifies that the CPS shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication and AMCA Publication 3 and comply with the requirements of the AMCA Certified Ratings Program. Type CPS is furnished standard with UL 5 listing ( C UL 5) when furnished with factory supplied motor. Type CPS is available with UL listing ( C UL ) when furnished with factory supplied motor. Type CPS is available with UL Power Ventilator for Smoke Control Systems Listing when furnished with factory supplied motor. Description: Fan shall be a single width, single inlet, backward inclined flat blade, belt driven centrifugal vent set. Certifications: Fan shall be manufactured at an ISO certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 5) for US and Canada. For restaurant applications, fan shall be listed by Underwriters Laboratories (UL/cUL ) for US and Canada. For smoke control applications, fan shall be listed by Underwriters Laboratories (Power Ventilator for Smoke Control Systems) for US and Canada. Fan shall bear the AMCA Certified Ratings Seal for Sound and Air performance. Construction: The fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The scroll wrapper shall be a minimum 4 gauge steel and the scroll side panels shall be a minimum gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. The fan housing shall be field rotatable to any one of eight discharge positions and shall have a minimum -/ inch outlet discharge flange. Bearing support shall be minimum gauge welded steel. Side access inspection ports shall be provided with quick release latches for access to the motor compartment without removing the weather cover. Lifting lugs shall be provided for ease of installation. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure, and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging. Coating: Steel fan components shall be Lorenized TM with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum mil thick baked powder finish. Paint must exceed, hour salt spray under ASTM B7 test method. Wheel: Wheel shall be steel centrifugal backward inclined, nonoverloading flat blade type. Blades shall be continuously welded to the backplate and deep spun inlet shroud. Wheel hub shall be keyed and securely attached to the fan shaft. Wheel inlet shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 4-5, Balance Quality and Vibration Levels for Fans. Motor: Motor shall be NEMA Design B with Class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure. Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillowblock housing selected for a minimum L5 life in excess of, hours at maximum cataloged operating speed. Blower Shaft: Blower shaft shall be AISI C-45 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 5% of maximum RPM. Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 5% of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM. Product: Fan shall be model CPS as manufactured by Loren Cook Company of Springfield, Missouri. 6

8 Dimensions CPS T Z Discharge L Centerline K Shaft Centerline -/" V E F V H D Weather Cover Optional R Q U J A ID U U X B ID P U C OD Y Y G G W M N AA AA S Dia. Side CPS Dimensions Size A B C D G H K L M N E F J Class I Class II Class I Class II Class I Class II Class IClass II Class I Class II Class I Class II Class I Class II 6 7-9/6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 9-3/8 7-9/6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 9-3/ /6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 9-3/8-7-9/6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 9-3/8 9-3/6 3-/8 6-/ /6 3-3/8 9-3/8-3/8 6-/4 3-/4-3/8 8-7/8-5/6 3-/8 -/8 -/4 35-5/6 4-3/4 7-5/8 8 6-/6 3-7/8 9-3/8-3/ / /6 5-/8 -/8 -/8-3/8 5-7/6 6-7/6 9-/8 9-/6 9-9/6 5-5/6 9-3/8-7/8 9-/ /8 8 4-/8 4-9/6 5-/8 -/8 3-/4 3-/ 65-5/8 8-/6-3/6-7/6 4 3-/6 6-3/8 9-3/ / /6 -/8 5-5/6 6-/8 5-/8 5-/4 4-7/6 5-/6 3-3/4 9-/6-/6 -/ /4 7-5/8-3/ /6 35-/ 6-5/6 -/8 6-7/6 7-/4 5-/8 5-/4 5-9/6 6-3/6 4-5/6-5/6 4-3/6 3-/6 4-/4 36-5/6 7-3/6-3/8 3-3/4 35-/6 36-/4 8-3/6 5 -/8 7-5/8 8-/ 8-/8 5-/4 6-3/4 7-3/8 6-/ /6 5-3/8 5-3/8 39-5/6-3/8 3-3/4 38-7/ /6 5 -/8 8-3/4 9-5/8 8-/8 5-/4 7-7/8 8-/ 5 7-3/6 4-5/8 7-7/ /8-7/8 3-7/ /6 5 -/8 9-7/8-7/8 8-/8 5-/ / /4 6-3/6 9-7/6 9-5/8 9-5/8 45-/6-3/4 3-3/8 4-5/6 44-5/8 44-5/ /8 -/6-5/6 8-/8 7-5/6 -/6-5/6-5/8 9-9/6 3-5/6 3-3/8 3-3/8 49-/6 3-3/8 4-3/8 5-7/6 48-7/8 48-7/8 4-7/8 8 4-/8 3-9/6 4-/6 -/8 7-5/6-5/63-/6 3-5/63-3/634-5/6 35-5/8 35-5/8 54-3/8 5-7/8 5-5/6 6-/6 53-5/8 53-5/8 7-3/ /6-3/69-3/6 5-5/6 6-3/ /4 36-/8 37-5/6 38-7/8 38-7/8 59-3/6 8-7/6 6-3/6 7-5/8 58-3/8 58-3/8 9-7/ /6 9-9/6-3/69-3/6 7-5/8 8-9/ /8 39-5/6 4-7/6 4-3/4 4-3/4 -/8 3-7/6 7-3/-3/6 64-/4 64-/4 3-/ /6 3-7/6 4-3/6 9-/4 3-/4 3-7/ /4 44-/6 45-3/6 46-3/4-5/634-/-3/6 -/4 34-5/6 34-5/6 4-3/6 34-/ /6 49-7/6 5-3/8 - -9/6 38-5/6-3/6 - -7/8-38-3/ /6-8-3/6-37-3/ /6 53-5/ /4-3/4 4-3/6 3-3/6 -/4 4-5/ /6 4-3/6 P R V Y Z AA Max. Motor Size Q S T U W X Frame * Ship Wt. Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II 6 3-3/8 3 9/6 3/4-5/ /6 8-5/8 4-5/8 9-3/8 45T 3-3/8 3 9/6 3/4-5/ /6 8-5/8 4-5/8 9-3/8 45T /8 3 9/6 3/4-5/ /6 8-5/8 4-5/8 9-3/8 45T - 3-3/8 3 9/6 3/4-5/ /6 8-5/8 4-5/8 9-3/8 45T 3-9/6 36-3/4 3-7/6 9/6 3/4-5/ /6 8-5/8 9-5/8 5-7/6 5-9/6 9-3/8 -/ T 5T /6 38-3/8 3-7/6 9/6 3/4-5/ /6 8-5/8 9-5/8 6 6-/8 9-3/8-7/6 T 5T /8 4-/4 3-7/6 9/6 3/4-5/8 8 9-/ 4 9-5/8 8-5/8 -/8 6-9/6 6-/6 9-3/8-5/6 T 56T /8 43-5/8 3-7/6 9/6 3/4-5/8 8 -/4 4 -/4 8-5/8 -/4 7-3/6 7-5/8 9-3/8 3-/6 T 56T /8 45-/4 3-3/6 -/6 9/6 3/4-5/8 9 -/4 4-7/8 9-5/8 -/4 7-3/4 8-3/6-3/8 3-/6 5T 56T /8 47-/8 3-3/6 -/6 9/6 3/4-5/ / 9-5/ /6 8-3/6-3/8 3-7/8 5T 56T /4 49-5/6 4-7/6 -/6 9/6 3/4-5/ /6-5/ /8 9-3/8-3/8 3-7/8 5T 56T /6 4-7/6 -/6 9/6 3/4-5/8 -/ -/ /6 -/8 3-/8 9-7/6 -/6-7/8 4-/8 5T 56T /4 58-7/6 4 -/6-5/6 /6 -/8 -/ 3-/ /8 3-5/6 -/ -5/8 3-3/8 4-5/6 5T 56T /4 63-5/6 4 -/6-5/6 /6 -/8 -/ 3-/ /4 3-3/8 4-7/6-7/6 -/6 4-3/8 5-/6 56T T 3 7-/4 -/ 4-5/6-3/6 /6 -/8 3-/ 3-/ /6 5-/6-5/8 3-5/6 5-5/6 6-5/6 56T T /4 4-5/6-3/6 3/6 -/8 5 5-/ /6 5-3/6 6-5/8 3-3/4 4-9/6 6-3/6 8 56T 36T / -3/4 5-3/6-7/6 3/6 -/ / /6 6-3/6 7-3/6 5-/6 6-/8 7-3/6 9-3/8 34T 36T / 5-3/6 3/6 -/ /6 8-3/ /6 34T /4-5 -7/6-3/6 -/ /6-3/6-8-5/8 - -3/6-36T / 5-7/6 3/6 -/ /8-3/6-3/8 3-3/6 36T 39 All dimensions in inches. Weight in lbs., less motor. For other discharge dimensions, please consult page 7, Compute-A-Fan, an authorized representative or the factory. *Based on open drip proof, single speed. 7

9 CPA Specifications Centrifugal Utility Vent Set Blower Backward Inclined Wheel Aluminum Wheel and Housing Belt Drive Loren Cook Company certifies that the CPA shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication and AMCA Publication 3 and comply with the requirements of the AMCA Certified Ratings Program. Type CPA is furnished standard with UL 5 listing ( C UL 5) when furnished with factory supplied motor. Type CPA is available with UL listing ( C UL ) when furnished with factory supplied motor. Description: Fan shall be a single width, single inlet, backward inclined flat blade, belt driven centrifugal vent set featuring spark resistant Type A construction. Certifications: Fan shall be manufactured at an ISO certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 5) for US and Canada. For restaurant applications, fan shall be listed by Underwriters Laboratories (UL/cUL) for US and Canada. Fan shall bear the AMCA Certified Ratings Seal for Sound and Air performance. Construction: The fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The scroll wrapper shall be minimum." aluminum and the scroll side panels shall be minimum." aluminum. The entire fan housing shall have continuously welded seams for leakproof operation. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. The fan housing shall be field rotatable to any one of eight discharge positions and shall have a minimum -/ inch outlet discharge flange. Bearing support shall be minimum gauge welded steel. Side access inspection ports shall be provided with quick release latches for access to the motor compartment without removing the weather cover. Lifting lugs shall be provided for ease of installation. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure, and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging. Coating: Steel fan components shall be Lorenized TM with an electrostatically applied, baked polyester powder coating. Each powder coated component shall be subject to a five stage environmentally friendly wash system, followed by a minimum mil thick baked powder finish. Paint must exceed, hour salt spray under ASTM B7 test method. Wheel: Wheel shall be aluminum centrifugal backward inclined, nonoverloading flat blade type. Blades shall be continuously welded to the backplate and deep spun inlet shroud. Wheel hub shall be keyed and securely attached to the fan shaft. Wheel inlet shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 4-5, Balance Quality and Vibration Levels for Fans. Motor: Motor shall be NEMA Design B with Class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure. Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillowblock housing selected for a minimum L5 life in excess of, hours at maximum cataloged operating speed. Blower Shaft: Blower shaft shall be Type 36 Stainless Steel accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 5% of maximum RPM. Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 5% of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM. Product: Fan shall be model CPA as manufactured by Loren Cook Company of Springfield, Missouri. 8

10 Dimensions CPA K T Z Discharge L Centerline Shaft Centerline -/" V E F V H D Weather Cover Optional R Q U J A ID U U X B ID P U C OD Y Y G G W M N AA AA CPA Dimensions S Dia. Side Size A B C D G H K L M N E F J Class I Class II Class I Class II Class I Class II Class IClass II Class I Class II Class I Class II Class I Class II 6 7-9/6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 9-3/8 7-9/6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 9-3/ /6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 9-3/8-7-9/6-5/6 4-/8 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 9-3/8 9-3/6 3-/8 6-/ /6 3-3/8 9-3/8-3/8 6-/4 3-/4-3/8 8-7/8-5/6 3-/8 -/8 -/4 35-5/6 4-3/4 7-5/8 8 6-/6 3-7/8 9-3/8-3/ / /6 5-/8 -/8 -/8-3/8 5-7/6 6-7/6 9-/8 9-/6 9-9/6 5-5/6 9-3/8-7/8 9-/ /8 8 4-/8 4-9/6 5-/8 -/8 3-/4 3-/ 65-5/8 8-/6-3/6-7/6 4 3-/6 6-3/8 9-3/ / /6 -/8 5-5/6 6-/8 5-/8 5-/4 4-7/6 5-/6 3-3/4 9-/6-/6 -/ /4 7-5/8-3/ /6 35-/ 6-5/6 -/8 6-7/6 7-/4 5-/8 5-/4 5-9/6 6-3/6 4-5/6-5/6 4-3/6 3-/6 4-/4 36-5/6 7-3/6-3/8 3-3/4 35-/6 36-/4 8-3/6 5 -/8 7-5/8 8-/ 8-/8 5-/4 6-3/4 7-3/8 6-/ /6 5-3/8 5-3/8 39-5/6-3/8 3-3/4 38-7/ /6 5 -/8 8-3/4 9-5/8 8-/8 5-/4 7-7/8 8-/ 5 7-3/6 4-5/8 7-7/ /8-7/8 3-7/ /6 5 -/8 9-7/8-7/8 8-/8 5-/ / /4 6-3/6 9-7/6 9-5/8 9-5/8 45-/6-3/4 3-3/8 4-5/6 44-5/8 44-5/ /8 -/6-5/6 8-/8 7-5/6 -/6-5/6-5/8 9-9/6 3-5/6 3-3/8 3-3/8 49-/6 3-3/8 4-3/8 5-7/6 48-7/8 48-7/8 4-7/8 8 4-/8 3-9/6 4-/6 -/8 7-5/6-5/63-/6 3-5/63-3/634-5/6 35-5/8 35-5/8 54-3/8 5-7/8 5-5/6 6-/6 53-5/8 53-5/8 7-3/ /6-3/69-3/6 5-5/6 6-3/ /4 36-/8 37-5/6 38-7/8 38-7/8 59-3/6 8-7/6 6-3/6 7-5/8 58-3/8 58-3/8 9-7/ /6 9-9/6-3/69-3/6 7-5/8 8-9/ /8 39-5/6 4-7/6 4-3/4 4-3/4 -/8 3-7/6 7-3/-3/6 64-/4 64-/4 3-/ /6 3-7/6 4-3/6 9-/4 3-/4 3-7/ /4 44-/6 45-3/6 46-3/4-5/634-/-3/6 -/4 34-5/6 34-5/6 4-3/6 34-/ /6 49-7/6 5-3/8 - -9/6 38-5/6-3/6 - -7/8-38-3/ /6-8-3/6-37-3/ /6 53-5/ /4-3/4 4-3/6 3-3/6 -/4 4-5/ /6 4-3/6 P R V Y Z AA Max. Motor Size Q S T U W X Frame * Ship Wt. Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II 6 3-3/8 3 9/6 3/4-5/ /6 8-5/8 4-5/8 9-3/8 45T 8 3-3/8 3 9/6 3/4-5/ /6 8-5/8 4-5/8 9-3/8 45T /8 3 9/6 3/4-5/ /6 8-5/8 4-5/8 9-3/8 45T 8-3-3/8 3 9/6 3/4-5/ /6 8-5/8 4-5/8 9-3/8 45T 8 3-9/6 36-3/4 3-7/6 9/6 3/4-5/ /6 8-5/8 9-5/8 5-7/6 5-9/6 9-3/8 -/ T 5T /6 38-3/8 3-7/6 9/6 3/4-5/ /6 8-5/8 9-5/8 6 6-/8 9-3/8-7/6 T 5T /8 4-/4 3-7/6 9/6 3/4-5/8 8 9-/ 4 9-5/8 8-5/8 -/8 6-9/6 6-/6 9-3/8-5/6 T 56T /8 43-5/8 3-7/6 9/6 3/4-5/8 8 -/4 4 -/4 8-5/8 -/4 7-3/6 7-5/8 9-3/8 3-/6 T 56T /8 45-/4 3-3/6 -/6 9/6 3/4-5/8 9 -/4 4-7/8 9-5/8 -/4 7-3/4 8-3/6-3/8 3-/6 5T 56T /8 47-/8 3-3/6 -/6 9/6 3/4-5/ / 9-5/ /6 8-3/6-3/8 3-7/8 5T 56T /4 49-5/6 4-7/6 -/6 9/6 3/4-5/ /6-5/ /8 9-3/8-3/8 3-7/8 5T 56T /6 4-7/6 -/6 9/6 3/4-5/8 -/ -/ /6 -/8 3-/8 9-7/6 -/6-7/8 4-/8 5T 56T /4 58-7/6 4 -/6-5/6 /6 -/8 -/ 3-/ /8 3-5/6 -/ -5/8 3-3/8 4-5/6 5T 56T /4 63-5/6 4 -/6-5/6 /6 -/8 -/ 3-/ /4 3-3/8 4-7/6-7/6 -/6 4-3/8 5-/6 56T T /4 -/ 4-5/6-3/6 /6 -/8 3-/ 3-/ /6 5-/6-5/8 3-5/6 5-5/6 6-5/6 56T T /4 4-5/6-3/6 3/6 -/8 5 5-/ /6 5-3/6 6-5/8 3-3/4 4-9/6 6-3/6 8 56T 36T / -3/4 5-3/6-7/6 3/6 -/ / /6 6-3/6 7-3/6 5-/6 6-/8 7-3/6 9-3/8 34T 36T / 5-3/6 3/6 -/ /6 8-3/ /6 34T /4-5 -7/6-3/6 -/ /6-3/6-8-5/8 - -3/6-36T / 5-7/6 3/6 -/ /8-3/6-3/8 3-3/6 36T 44 All dimensions in inches. Weight in lbs., less motor. For other discharge dimensions, please consult page 7, Compute-A-Fan, an authorized representative or the factory. *Based on open drip proof, single speed. 9

11 CPS-A Specifications Centrifugal Utility Vent Set Blower Airfoil Wheel Steel Construction Belt Drive Loren Cook Company certifies that the CPS-A shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication and AMCA Publication 3 and comply with the requirements of the AMCA Certified Ratings Program. Type CPS-A is furnished standard with UL 5 listing ( C UL 5) when furnished with factory supplied motor. Type CPS-A is available with UL listing ( C UL ) when furnished with factory supplied motor. Type CPS-A is available with UL Power Ventilator for Smoke Control Systems Listing when furnished with factory supplied motor. Description: Fan shall be a single width, single inlet, backward inclined airfoil, belt driven centrifugal vent set. Certifications: Fan shall be manufactured at an ISO certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 5) for US and Canada. For restaurant applications, fan shall be listed by Underwriters Laboratories (UL/cUL ) for US and Canada. For smoke control applications, fan shall be listed by Underwriters Laboratories (Power Ventilator for Smoke Control Systems) for US and Canada. Fan shall bear the AMCA Certified Ratings Seal for Sound and Air performance. Construction: The fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The scroll wrapper shall be a minimum 4 gauge steel and the scroll side panels shall be a minimum gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. The fan housing shall be field rotatable to any one of eight discharge positions and shall have a minimum -/ inch outlet discharge flange. Bearing support shall be minimum gauge welded steel. Side access inspection ports shall be provided with quick release latches for access to the motor compartment without removing the weather cover. Lifting lugs shall be provided for ease of installation. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure, and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging. Coating: Steel fan components shall be Lorenized TM with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum mil thick baked powder finish. Paint must exceed, hour salt spray under ASTM B7 test method. Wheel: Wheel shall be steel centrifugal airfoil blade type. Blades shall be continuously welded to the backplate and deep spun inlet shroud. Wheel hub shall be keyed and securely attached to the fan shaft. Wheel inlet shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 4-5, Balance Quality and Vibration Levels for Fans. Motor: Motor shall be NEMA Design B with Class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure. Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillowblock housing selected for a minimum L5 life in excess of, hours at maximum cataloged operating speed. Blower Shaft: Blower shaft shall be AISI C-45 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 5% of maximum RPM. Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 5% of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM. Product: Fan shall be model CPS-A as manufactured by Loren Cook Company of Springfield, Missouri.

12 Dimensions CPS-A K T Z Discharge L Centerline Shaft Centerline -/" V E F V D H Weather Cover Optional R Q U J A ID U U X B ID P U C OD Y Y G S Dia. G W M N AA AA Side CPS-A Dimensions Size A B C D G H K L M N E F J Class I Class II Class I Class II Class I Class II Class IClass II Class I Class II Class I Class II Class I Class II 9-3/6 3-/8 6-/ /6 3-3/8 9-3/8-3/8 6-/4 3-/4-3/8 8-7/8-5/6 3-/8 -/8 -/4 35-5/6 4-3/4 7-5/8 8 6-/6 3-7/8 9-3/8-3/ / /6 5-/8 -/8 -/8-3/8 5-7/6 6-7/6 9-/8 9-/6 9-9/6 5-5/6 9-3/8-7/8 9-/ /8 8 4-/8 4-9/6 5-/8 -/8 3-/4 3-/ 65-5/8 8-/6-3/6-7/6 4 3-/6 6-3/8 9-3/ / /6 -/8 5-5/6 6-/8 5-/8 5-/4 4-7/6 5-/6 3-3/4 9-/6-/6 -/ /4 7-5/8-3/ /6 35-/ 6-5/6 -/8 6-7/6 7-/4 5-/8 5-/4 5-9/6 6-3/6 4-5/6-5/6 4-3/6 3-/6 4-/4 36-5/6 7-3/6-3/8 3-3/4 35-/6 36-/4 8-3/6 5 -/8 7-5/8 8-/ 8-/8 5-/4 6-3/4 7-3/8 6-/ /6 5-3/8 5-3/8 39-5/6-3/8 3-3/4 38-7/ /6 5 -/8 8-3/4 9-5/8 8-/8 5-/4 7-7/8 8-/ 5 7-3/6 4-5/8 7-7/ /8-7/8 3-7/ /6 5 -/8 9-7/8-7/8 8-/8 5-/ / /4 6-3/6 9-7/6 9-5/8 9-5/8 45-/6-3/4 3-3/8 4-5/6 44-5/8 44-5/ /8 -/6-5/6 8-/8 7-5/6 -/6-5/6-5/8 9-9/6 3-5/6 3-3/8 3-3/8 49-/6 3-3/8 4-3/8 5-7/6 48-7/8 48-7/8 4-7/8 8 4-/8 3-9/6 4-/6 -/8 7-5/6-5/63-/6 3-5/63-3/634-5/6 35-5/8 35-5/8 54-3/8 5-7/8 5-5/6 6-/6 53-5/8 53-5/8 7-3/ /6-3/69-3/6 5-5/6 6-3/ /4 36-/8 37-5/6 38-7/8 38-7/8 59-3/6 8-7/6 6-3/6 7-5/8 58-3/8 58-3/8 9-7/ /6 9-9/6-3/69-3/6 7-5/8 8-9/ /8 39-5/6 4-7/6 4-3/4 4-3/4 -/8 3-7/6 7-3/-3/6 64-/4 64-/4 3-/ /6 3-7/6 4-3/6 9-/4 3-/4 3-7/ /4 44-/6 45-3/6 46-3/4-5/634-/-3/6 -/4 34-5/6 34-5/6 4-3/6 34-/ /6 49-7/6 5-3/8 - -9/6 38-5/6-3/6 - -7/8-38-3/ /6-8-3/6-37-3/ /6 53-5/ /4-3/4 4-3/6 3-3/6 -/4 4-5/ /6 4-3/6 P R V Y Z AA Max. Motor Size Q S T U W X Frame * Ship Wt. Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II 3-9/6 36-3/4 3-7/6 9/6 3/4-5/ /6 8-5/8 9-5/8 5-7/6 5-9/6 9-3/8 -/ T 5T /6 38-3/8 3-7/6 9/6 3/4-5/ /6 8-5/8 9-5/8 6 6-/8 9-3/8-7/6 T 5T /8 4-/4 3-7/6 9/6 3/4-5/8 8 9-/ 4 9-5/8 8-5/8 -/8 6-9/6 6-/6 9-3/8-5/6 T 56T /8 43-5/8 3-7/6 9/6 3/4-5/8 8 -/4 4 -/4 8-5/8 -/4 7-3/6 7-5/8 9-3/8 3-/6 T 56T /8 45-/4 3-3/6 -/6 9/6 3/4-5/8 9 -/4 4-7/8 9-5/8 -/4 7-3/4 8-3/6-3/8 3-/6 5T 56T /8 47-/8 3-3/6 -/6 9/6 3/4-5/ / 9-5/ /6 8-3/6-3/8 3-7/8 5T 56T /4 49-5/6 4-7/6 -/6 9/6 3/4-5/ /6-5/ /8 9-3/8-3/8 3-7/8 5T 56T /6 4-7/6 -/6 9/6 3/4-5/8 -/ -/ /6 -/8 3-/8 9-7/6 -/6-7/8 4-/8 5T 56T /4 58-7/6 4 -/6-5/6 /6 -/8 -/ 3-/ /8 3-5/6 -/ -5/8 3-3/8 4-5/6 5T 56T /4 63-5/6 4 -/6-5/6 /6 -/8 -/ 3-/ /4 3-3/8 4-7/6-7/6 -/6 4-3/8 5-/6 56T T /4 -/ 4-5/6-3/6 /6 -/8 3-/ 3-/ /6 5-/6-5/8 3-5/6 5-5/6 6-5/6 56T T /4 4-5/6-3/6 3/6 -/8 5 5-/ /6 5-3/6 6-5/8 3-3/4 4-9/6 6-3/6 8 56T 36T / -3/4 5-3/6-7/6 3/6 -/ / /6 6-3/6 7-3/6 5-/6 6-/8 7-3/6 9-3/8 34T 36T 4 -/ 5-3/6 3/6 -/ /6 8-3/ /6 34T /4-5 -7/6-3/6 -/ /6-3/6-8-5/8 - -3/6-36T / 5-7/6 3/6 -/ /8-3/6-3/8 3-3/6 36T 3 All dimensions in inches. Weight in lbs., less motor. For other discharge dimensions, please consult page 7, Compute-A-Fan, an authorized representative or the factory. *Based on open drip proof, single speed.

13 CPA-A Specifications Centrifugal Utility Vent Set Blower Airfoil Wheel Aluminum Wheel and Housing Belt Drive Loren Cook Company certifies that the CPA-A shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication and AMCA Publication 3 and comply with the requirements of the AMCA Certified Ratings Program. Type CPA-A is furnished standard with UL 5 listing ( C UL 5) when furnished with factory supplied motor. Type CPA-A is available with UL listing ( C UL ) when furnished with factory supplied motor. Description: Fan shall be a single width, single inlet, backward inclined airfoil, belt driven centrifugal vent set featuring spark resistant Type A construction. Certifications: Fan shall be manufactured at an ISO certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 5) for US and Canada. For restaurant applications, fan shall be listed by Underwriters Laboratories (UL/cUL ) for US and Canada. Fan shall bear the AMCA Certified Ratings Seal for Sound and Air Performance. Construction: The fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The scroll wrapper shall be a minimum." aluminum and the scroll side panels shall be a minimum." aluminum. The entire fan housing shall have continuously welded seams for leakproof operation. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. The fan housing shall be field rotatable to any one of eight discharge positions and shall have a minimum -/ inch outlet discharge flange. Bearing support shall be minimum gauge welded steel. Side access inspection ports shall be provided with quick release latches for access to the motor compartment without removing the weather cover. Lifting lugs shall be provided for ease of installation. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure, and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging. Coating: Steel fan components shall be Lorenized TM with an electrostatically applied, baked polyester powder coating. Each powder coated component shall be subject to a five stage environmentally friendly wash system, followed by a minimum mil thick baked powder finish. Paint must exceed, hour salt spray under ASTM B7 test method. Wheel: Wheel shall be aluminum centrifugal airfoil blade type. Blades shall be continuously welded to the backplate and deep spun inlet shroud. Wheel hub shall be keyed and securely attached to the fan shaft. Wheel inlet shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 4-5, Balance Quality and Vibration Levels for Fans. Motor: Motor shall be NEMA Design B with Class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure. Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillowblock housing selected for a minimum L5 life in excess of, hours at maximum cataloged operating speed. Blower Shaft: Blower shaft shall be Type 36 Stainless Steel accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 5% of maximum RPM. Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 5% of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM. Product: Fan shall be model CPA-A as manufactured by Loren Cook Company of Springfield, Missouri.

14 Dimensions CPA-A T Z Discharge L Centerline K Shaft Centerline -/" V E F V H D Weather Cover Optional R Q U J A ID U U X B ID P U C OD Y Y G G W M N AA AA CPA-A Dimensions S Dia. Side Size A B C D G H K L M N E F J Class I Class II Class I Class II Class I Class II Class IClass II Class I Class II Class I Class II Class I Class II 9-3/6 3-/8 6-/ /6 3-3/8 9-3/8-3/8 6-/4 3-/4-3/8 8-7/8-5/6 3-/8 -/8 -/4 35-5/6 4-3/4 7-5/8 8 6-/6 3-7/8 9-3/8-3/ / /6 5-/8 -/8 -/8-3/8 5-7/6 6-7/6 9-/8 9-/6 9-9/6 5-5/6 9-3/8-7/8 9-/ /8 8 4-/8 4-9/6 5-/8 -/8 3-/4 3-/ 65-5/8 8-/6-3/6-7/6 4 3-/6 6-3/8 9-3/ / /6 -/8 5-5/6 6-/8 5-/8 5-/4 4-7/6 5-/6 3-3/4 9-/6-/6 -/ /4 7-5/8-3/ /6 35-/ 6-5/6 -/8 6-7/6 7-/4 5-/8 5-/4 5-9/6 6-3/6 4-5/6-5/6 4-3/6 3-/6 4-/4 36-5/6 7-3/6-3/8 3-3/4 35-/6 36-/4 8-3/6 5 -/8 7-5/8 8-/ 8-/8 5-/4 6-3/4 7-3/8 6-/ /6 5-3/8 5-3/8 39-5/6-3/8 3-3/4 38-7/ /6 5 -/8 8-3/4 9-5/8 8-/8 5-/4 7-7/8 8-/ 5 7-3/6 4-5/8 7-7/ /8-7/8 3-7/ /6 5 -/8 9-7/8-7/8 8-/8 5-/ / /4 6-3/6 9-7/6 9-5/8 9-5/8 45-/6-3/4 3-3/8 4-5/6 44-5/8 44-5/ /8 -/6-5/6 8-/8 7-5/6 -/6-5/6-5/8 9-9/6 3-5/6 3-3/8 3-3/8 49-/6 3-3/8 4-3/8 5-7/6 48-7/8 48-7/8 4-7/8 8 4-/8 3-9/6 4-/6 -/8 7-5/6-5/63-/6 3-5/63-3/634-5/6 35-5/8 35-5/8 54-3/8 5-7/8 5-5/6 6-/6 53-5/8 53-5/8 7-3/ /6-3/69-3/6 5-5/6 6-3/ /4 36-/8 37-5/6 38-7/8 38-7/8 59-3/6 8-7/6 6-3/6 7-5/8 58-3/8 58-3/8 9-7/ /6 9-9/6-3/69-3/6 7-5/8 8-9/ /8 39-5/6 4-7/6 4-3/4 4-3/4 -/8 3-7/6 7-3/-3/6 64-/4 64-/4 3-/ /6 3-7/6 4-3/6 9-/4 3-/4 3-7/ /4 44-/6 45-3/6 46-3/4-5/634-/-3/6 -/4 34-5/6 34-5/6 4-3/6 34-/ /6 49-7/6 5-3/8 - -9/6 38-5/6-3/6 - -7/8-38-3/ /6-8-3/6-37-3/ /6 53-5/ /4-3/4 4-3/6 3-3/6 -/4 4-5/ /6 4-3/6 P R V Y Z AA Max. Motor Size Q S T U W X Frame * Ship Wt. Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II Class I Class II 3-9/6 36-3/4 3-7/6 9/6 3/4-5/ /6 8-5/8 9-5/8 5-7/6 5-9/6 9-3/8 -/ T 5T /6 38-3/8 3-7/6 9/6 3/4-5/ /6 8-5/8 9-5/8 6 6-/8 9-3/8-7/6 T 5T /8 4-/4 3-7/6 9/6 3/4-5/8 8 9-/ 4 9-5/8 8-5/8 -/8 6-9/6 6-/6 9-3/8-5/6 T 56T /8 43-5/8 3-7/6 9/6 3/4-5/8 8 -/4 4 -/4 8-5/8 -/4 7-3/6 7-5/8 9-3/8 3-/6 T 56T /8 45-/4 3-3/6 -/6 9/6 3/4-5/8 9 -/4 4-7/8 9-5/8 -/4 7-3/4 8-3/6-3/8 3-/6 5T 56T /8 47-/8 3-3/6 -/6 9/6 3/4-5/ / 9-5/ /6 8-3/6-3/8 3-7/8 5T 56T /4 49-5/6 4-7/6 -/6 9/6 3/4-5/ /6-5/ /8 9-3/8-3/8 3-7/8 5T 56T /6 4-7/6 -/6 9/6 3/4-5/8 -/ -/ /6 -/8 3-/8 9-7/6 -/6-7/8 4-/8 5T 56T /4 58-7/6 4 -/6-5/6 /6 -/8 -/ 3-/ /8 3-5/6 -/ -5/8 3-3/8 4-5/6 5T 56T /4 63-5/6 4 -/6-5/6 /6 -/8 -/ 3-/ /4 3-3/8 4-7/6-7/6 -/6 4-3/8 5-/6 56T T /4 -/ 4-5/6-3/6 /6 -/8 3-/ 3-/ /6 5-/6-5/8 3-5/6 5-5/6 6-5/6 56T T /4 4-5/6-3/6 3/6 -/8 5 5-/ /6 5-3/6 6-5/8 3-3/4 4-9/6 6-3/6 8 56T 36T / -3/4 5-3/6-7/6 3/6 -/ / /6 6-3/6 7-3/6 5-/6 6-/8 7-3/6 9-3/8 34T 36T / 5-3/6 3/6 -/ /6 8-3/ /6 34T /4-5 -7/6-3/6 -/ /6-3/6-8-5/8 - -3/6-36T / 5-7/6 3/6 -/ /8-3/6-3/8 3-3/6 36T All dimensions in inches. Weight in lbs., less motor. For other discharge dimensions, please consult page 7, Compute-A-Fan, an authorized representative or the factory. *Based on open drip proof, single speed. 3

15 CPFB Specifications Centrifugal Vent Set Blower Forward Curved Wheel Belt Drive Loren Cook Company certifies that the CPFB shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication and AMCA Publication 3 and comply with the requirements of the AMCA Certified Ratings Program. Type CPFB is furnished standard with UL 5 listing ( C UL 5) when furnished with factory supplied motor. Description: Fan shall be a single width, single inlet, forward curved, belt driven centrifugal vent set. Certifications: Fan shall be manufactured at an ISO certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 5) for US and Canada. Fan shall bear the AMCA Certified Ratings Seal for Sound and Air Performance. Construction: The fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The scroll wrapper shall be minimum 4 gauge steel and the scroll side panels shall be minimum gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation. The fan housing shall be field rotatable to any one of eight discharge positions and shall have a minimum -/ inch outlet discharge flange. Bearing support shall be minimum gauge welded steel. Side access inspection ports shall be provided with quick release latches for access to the motor compartment without removing the weather cover. Lifting lugs shall be provided for ease of installation. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure, and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging. Coating: Steel fan components shall be Lorenized TM with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum mil thick baked powder finish. Paint must exceed, hour salt spray under ASTM B7 test method. Wheel: Wheel shall be centrifugal forward curved type. Wheel hub shall be keyed and securely attached to the fan shaft. Wheel shall utilize an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 4-5, Balance Quality and Vibration Levels for Fans. Motor: Motor shall be NEMA Design B with Class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure. Blower Shaft: Blower shaft shall be AISI C-45 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 5% of maximum RPM. Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillowblock housing selected for a minimum L5 life in excess of, hours at maximum cataloged operating speed. Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 5% of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM. Product: Fan shall be model CPFB as manufactured by Loren Cook Company of Springfield, Missouri. 4

16 Dimensions CPFB Shaft Centerline CPFB Dimensions Size A B C D E F G H J K L M 7-9/6-5/6 4-/ 8 -/4-3/4 9-3/8 5-/4-3/4 -/4 3-/8 9-3/6 3-/8 6-3/ /6 3-3/8 9-3/8 6-/4-5/6-7/8 3-/8 5-7/6 6-7/6 9-/ 9-/6 9-9/6 5-5/6 9-3/8 9-/6 4-9/6 4-/8 5-/8 3-3/4 9-/6 -/ -/6 34-3/4 7-5/8-3/8 33-9/6 6-7/8 6-7/6 5-/8 7-3/6 4-5/8 7-/ /8-7/8 4-5/6 5 8-/ /4 6-3/6 9-/4 9-5/8 45-/6-3/4 3-3/8 44-5/8-7/8 5-3/4 8-/8-5/8 9-9/6 3-3/4 3-3/8 49-/6 3-3/8 4-3/8 48-7/8 4-3/ /8 -/8 3-5/6 3-3/6 34-3/4 35-5/8 54-3/8 5-7/8 5-5/6 53-5/8 7-/ /6 Side Size N P Q R S T U V W X Y Z Max. Motor Frame * Ship Wt. 9-3/8 3-3/8 3 3/4 9/6 3/4 -/ 8-/6 4-/6 4-/6 8-5/8 4-/6 45T /6 3 9/6 3/4 -/ 8-/6 4-/6 6-/4 8-5/8 5-/ T /4 37-/8 3 9/6 3/4 -/ 8-/6 4-/6 9-9/6 8-5/8 6-/6 T 5-5/8 43-/8 3 9/6 3/4 -/ 9-/6 4-/6-3/6 9-5/8 7-3/6 5T / /6 9/6 3/4 -/ -9/6 5-/6 7-3/4 -/8 9-9/6 5T 4 5 -/8 58-/4 4-3/6 /6-9/6 5-/6 3-5/6-3/8-9/6 5T /4 4-7/6 /6-9/6 5-/6 33-/6 3-3/8 -/ 56T /6 7-/4 4-7/6 /6 3-9/6 5-/6 36-5/6 4-5/6 3 56T All dimensions in inches. Weight in lbs., less motor. For other discharge dimensions, please consult page 7, Compute-A-Fan, an authorized representative or the factory. *Based on open drip proof, single speed. 5

17 CPFD Specifications Centrifugal Utility Vent Set Blower Forward Curved Wheel Direct Drive Loren Cook Company certifies that the CPFD shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication and AMCA Publication 3 and comply with the requirements of the AMCA Certified Ratings Program. Type CPFD is furnished standard with UL 5 listing ( C UL 5) when furnished with factory supplied motor. Description: Fan shall be a single width, single inlet, forward curved, direct driven centrifugal vent set. Certifications: Fan shall be manufactured at an ISO certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 5) for US and Canada. Fan shall bear the AMCA Certified Ratings Seal for Sound and Air Performance. Construction: The fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The fan housing shall have air tight lock seams and shall be field rotatable to any one of eight discharge positions. Motor mount shall be minimum 4 gauge steel. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM and static pressure. Unit shall be shipped in ISTA Certified Transit Tested Packaging. Coating: Steel fan components shall be Lorenized TM with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum mil thick baked powder finish. Paint must exceed, hour salt spray under ASTM B7 test method. Wheel: Wheel shall be centrifugal forward curved type. Wheel hub shall be securely attached to the motor shaft. Wheel shall utilize an aerodynamic inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 4-5, Balance Quality and Vibration Levels for Fans. Motor: Motor shall be heavy duty type with permanently lubricated sealed ball bearings and furnished at the specified voltage, phase and enclosure. Product: Fan shall be model CPFD as manufactured by Loren Cook Company of Springfield, Missouri. CPFD Dimensions Size A B C Min. C Max. D Min. D Max. E F G H J 6 3-/ 8-/ 5-/4 5-3/4 7-5/8 8-/8 7-7/8 4-5/8 5-3/4 -/ -3/4 7 3-/ -/4 8-/8 8-5/8 -/8-5/8 8-3/8 5-3/8 6-/8 -/ -/ /4 -/ -/ -/8 -/8 9-7/8 5-7/8 7-3/4 3-3/4 5-/ -/4 3-5/6 4-5/6 3-3/8 4-3/8-3/8 6-3/8 8 4-/4 3-3/4 7-3/ /8 4-3/8 3-3/8 5-7/ /4 4-/4 Size K L M Min. M Max. N P Q Ship Wt /8-7/8 3-5/8 7/6 7 / /8-7/8 3-5/8 7/6 7 5/ /8 3-3/8 4-5/8 9/6 9 3/ /8 3-3/8 4-5/8 9/6 9 -/ /8 3-3/8 4-5/8 9/6 -/ 6 All dimensions in inches. Dimensions C, D, and M vary with motor frame size. For other discharge dimensions, please consult, Compute-A-Fan, an authorized representative or the factory. 6