CA / CF: Steel Centrifugal Blowers

  • CA / CF
  • CA / CF
  • CA / CF
  • CA / CF CA-4 Swing Out Arr. 2
  • CA / CF CA-4 Swing Out Arr. 2
  • CA / CF CA-4 Swing Out Arr. 2
  • CA / CF CA-4 Swing Out Arr. 2
  • Standard Construction Features
  • Standard Construction Features
  • Standard Construction Features
  • Standard Construction Features
  • AMCA-Sound & Air Cert. Logo
CA / CF SWSI Arr. 9

CA / CF SWSI Arr. 9

SWSI Arr. 10

CA SWSI Arr. 10

CA-4 SWSI Arr. 2

CA-4 SWSI Arr. 2

CA-4  Swing Out Arr. 2

CA-4 Swing Out Arr. 2

Arr. 3

CA DWDI Arr. 3

Arr. 3

CA-4 DWDI Arr. 3

CAF-DW

CAF-DW

SWSI Arr. 1, 9 Standard Construction Features

Standard Construction Features

SWSI Standard Construction Features

Standard Construction Features

CA-4 Standard Construction Features

Standard Construction Features

DWDI Arr. 1, 9 Standard Construction Features

Standard Construction Features

ISO, AMCA, UL, high w ind, and seismic certification logos

ISO, AMCA, UL

CA centrifugal blowers are standard with a steel backward inclined, airfoil wheel. They are available in single and double width configurations. CF centrifugal blowers are standard with a steel backward inclined, flat blade wheel. They are available in single width configurations.

About Centrifugal Fans: A centrifugal wheel brings air in parallel to the axis of rotation and discharges air perpendicular to the axis of rotation. As a general rule, it is preferred for higher pressure exhaust and ducted systems

Flat blades vs airfoil

Flat blades

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.

Airfoil

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.

Single width or double width

SWSI single width single inlet fans features one wheel, as shown to right. DWDI double width double inlet fans essentially have two wheels, with two inlets facing away from each other.

Features

  • Continuously welded housing to ensure a leak-proof enclosure and an all welded steel support structure for dependable, long lasting operational life.
  • Outlet flanges standard.
  • Lifting lugs are standard, to assist in handling and positioning of the fan.
  • Available in up to seven AMCA standard discharges, in both clockwise and counter clockwise rotations.
  • Produced in an ISO 9001 Certified facility.
  • Licensed to bear AMCA Certified Ratings Seal for Sound & Air Performance.
  • Listed by Underwriters Laboratory (UL 705) & UL Listed for Canada (cUL 705).
  • UL/cUL 762 listing for restaurant applications and UL/cUL listing for “Power Ventilator for Smoke Control Systems” are available for CA SWSI & CF SWSI (Except Arrangement 3).

CA & CF SWSI

With 7 Standard Discharge Positions:
CA SWSI & CF

  • Belt Drive
  • Arrangements 1, 3, 9 & 10
  • Inlet collars standard on Arrangements 1, 9 & 10 for easy connections to duct systems.
  • 20 wheel sizes: 12 - 73”
  • Static Pressure: 1 - 12”
  • Airfoil Wheel (CA SWSI)
    • Capacity: 700 - 209,000 CFM
  • Flat Blade Wheel (CF)
    • Capacity: 950 - 198,000 CFM

With 4 Discharge Positions:
CA-4 & CF-4 SWSI

  • Belt Drive
  • More compact construction
  • Arrangements 1, 2 and 3
  • Inlet collars standard on Arrangement 1 & 2 for easy connections to duct systems.
  • 18 wheel sizes: 12 - 60”
  • Static Pressure: 1 - 12”
  • Airfoil Wheel (CA-4 SWSI)
    • Capacity: 700 - 144,000 CFM
  • Flat Blade Wheel (CF-4 SWSI)
    • Capacity: 950 - 127,000 CFM

Also available (consult factory)

  • Direct drive
  • Swing out construction (on CA-4 SWSI & CF-4 SWSI) Arrangement 2 where the wheel and power assembly are mounted to a hinged door, for applications where frequent inspection and/or cleaning are required. Available on sizes 210 to 490.
  • Spark Resistant Construction
  • Arrangements 4, 7 & 8
  • Class IV

CADWDI

With 7 Standard Discharge Positions:
CA DWDI & CAF-DW

  • Belt Drive
  • Arrangement 3
  • 20 Wheel Sizes: 12 - 73”
  • Capacity: 900 - 375,000 CFM
  • Static Pressure: 1 - 12”
  • Industrial Airfoil Wheel (CA DWDI)
  • Commercial Airfoil Wheel (CAF-DW)
    • More compact construction

With 4 Discharge Positions:
CA-4 DWDI

  • Airfoil Wheel (CA-4 DWDI)
  • Belt Drive
  • More compact construction
  • Arrangement 3
  • 18 Wheel Sizes: 12 - 60”
  • Capacity: 900 - 261,000 CFM
  • Static Pressure: 1 - 12”

Also Available (consult factory)

  • Direct drive
  • Arrangement 7
  • Flat blade (CF-DW)


Related Documents

See also CP - Steel and Aluminum Vent Sets

  • CA SWSI

  • CA-4 SWSI

  • CA DWDI

  • CAF-DW

  • CA-4 DWDI

  • CF

  • CF-4

  • Downloads

CA

LOREN COOK COMPANY certifies that the CA SWSI shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

Type CA SWSI is furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

Type CA SWSI is available with UL 762 and cUL 762 listing (Power Ventilator for Restaurant Exhaust Appliances/Y2HW).

Type CA SWSI is available with UL listing for “Power Ventilator for Smoke Control Systems.”

CA SWSI

Airfoil Centrifugal Blower
Backward Inclined
Belt Drive
Single Width, Single Inlet

Description: Fan shall be a single width, single inlet backward inclined airfoil blade steel wheel, belt driven centrifugal blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705). 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 and scroll side panels shall be a minimum 12 gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation and shall have a minimum 1-1/2” outlet discharge flange. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. Bearing support shall be minimum 10 ga. welded steel. Lifting eyes 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: All steel fan components shall be LORENIZED™ 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 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, centrifugal backward inclined, airfoil type. Blades on all sizes shall be continuously welded to the backplate and deep spun inlet shroud. All sizes shall be keyed and securely attached to the fan shaft. Wheel shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, 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-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125 percent 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 pillow block housing and selected for a minimum L50 life in excess of 200,000 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 150 percent of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM.

Product: Fan shall be model CA SWSI as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

CA

LOREN COOK COMPANY certifies that the CA-4 SWSI shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

Type CA-4 SWSI is furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

Type CA-4 SWSI is available with UL 762 and cUL 762 listing (Power Ventilator for Restaurant Exhaust Appliances/Y2HW).

Type CA SWSI is available with UL listing for “Power Ventilator for Smoke Control Systems.”

CA-4 SWSI

Airfoil Centrifugal Blower
Backward Inclined
Belt Drive
Single Width, Single Inlet

Description: Fan shall be a rectangular, single width, single inlet backward inclined airfoil blade steel wheel, belt driven centrifugal blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705). 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 and scroll side panels shall be a minimum 12 gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation and shall have a minimum 2" outlet discharge flange. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. Bearing support shall be minimum 10 ga. welded steel. Lifting eyes 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: All steel fan components shall be LORENIZED™ 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 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, centrifugal backward inclined, airfoil type. Blades on all sizes shall be continuously welded to the backplate and deep spun inlet shroud. All sizes shall be securely keyed to the fan shaft. Wheel shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, 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-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125 percent 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 pillow block housing and selected for a minimum L50 life in excess of 200,000 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 150 percent of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM.

Product: Fan shall be model CA-4 SWSI as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

CA

LOREN COOK COMPANY certifies that the CA DWDI shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

Type CA DWDI is furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

CA DWDI

Airfoil Centrifugal Blower
Backward Inclined
Belt Drive
Double Width,
Double Inlet

 

Description: Fan shall be a double width, double inlet backward inclined airfoil blade steel wheel, belt driven centrifugal blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705). 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 and scroll side panels shall be a minimum 12 gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation and shall have a minimum 1-1/2” outlet discharge flange. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. Bearing support shall be minimum 1/4” steel. 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: All steel fan components shall be LORENIZED™ 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 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, centrifugal backward inclined, airfoil type. Blades on all sizes shall be continuously welded to the backplate and deep spun inlet shrouds. All sizes shall be keyed and securely attached to the fan shaft. Wheel shall overlap aerodynamic aluminum inlet cones to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, 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-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125 percent 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 pillow block housing and selected for a minimum L50 life in excess of 200,000 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 150 percent of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM.

Product: Fan shall be model CA DWDI as manufactured by LOREN COOK COMPANY of Springfield, Missouri.


CA

LOREN COOK COMPANY certifies that the CAF-DW shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

Type CAF-DW is furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

CAF-DW

Airfoil Centrifugal Blower
Backward Inclined
Belt Drive
Double Width,
Double Inlet

Description: Fan shall be a double width, double inlet backward inclined airfoil, belt driven centrifugal blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705). 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 and scroll side panels shall be a minimum 16 gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation and shall have a minimum 1" outlet discharge flange. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. Bearing support shall be minimum 12 gauge steel. 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™ 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 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, centrifugal backward inclined, airfoil type. Blades on all sizes shall be continuously welded to the backplate and deep spun inlet shrouds. All sizes shall be keyed and securely attached to the fan shaft. Wheel shall overlap aerodynamic aluminum inlet cones to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, 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-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125 percent 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 pillow block housing and selected for a minimum L50 life in excess of 200,000 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 150 percent of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM.

Product: Fan shall be model CAF-DW as manufactured by LOREN COOK COMPANY of Springfield, Missouri.


LOREN COOK COMPANY certifies that the CA-4 DWDI shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

Type CA-4 DWDI is furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

CA-4 DWDI

Airfoil Centrifugal Blower
Backward Inclined
Belt Drive
Double Width,
Double Inlet

Description: Fan shall be a rectangular, double width, double inlet backward inclined airfoil blade steel wheel, belt driven centrifugal blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705). 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 and scroll side panels shall be a minimum 12 gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation and shall have a minimum 2" outlet discharge flange. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. Bearing support shall be minimum 1/4” steel. Lifting eyes 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: All steel fan components shall be LORENIZED™ 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 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, centrifugal backward inclined, airfoil type. Blades on all sizes shall be continuously welded to the backplate and deep spun inlet shrouds. All sizes shall be securely keyed to the fan shaft. Wheel shall overlap aerodynamic aluminum inlet cones to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, 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-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125 percent 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 pillow block housing and selected for a minimum L50 life in excess of 200,000 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 150 percent of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM.

Product: Fan shall be model CA-4 DWDI as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

CA

LOREN COOK COMPANY certifies that the CF shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.

Type CF is furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor

Type CF is available with UL 762 and cUL 762 listing (Power Ventilator for Restaurant Exhaust Appliances/Y2HW).

Type CF is available with UL listing for “Power Ventilator for Smoke Control Systems.”

CF

Flatblade Steel
Centrifugal Blower
Backward Inclined
Belt Drive
Single Width, Single Inlet

Description: Fan shall be a single width, single inlet backward inclined flat blade, belt driven centrifugal blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 705) for US and Canada. For restaurant applications, fan shall be listed by Underwriters Laboratories (UL/cUL 762) 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 and scroll side panels shall be a minimum 12 gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation and shall have a minimum 1 ½” outlet discharge flange. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. Bearing support shall be minimum 10 gauge welded steel. Lifting eyes 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™ 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 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, centrifugal backward inclined, flat blade type. Blades shall be continuously welded to the backplate and deep spun inlet shroud. All sizes shall be keyed and securely attached to the fan shaft. Wheel shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, 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 pillow block housing selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Blower Shaft: Blower shaft shall be AISI C-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125% 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 150% of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM.

Product: Fan shall be model CF as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

CA

LOREN COOK COMPANY certifies that the CF-4 shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.

Type CF-4 is furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

Type CF-4 is available with UL 762 and cUL 762 listing (Power Ventilator for Restaurant Exhaust Appliances/Y2HW).

Type CA SWSI is available with UL listing for “Power Ventilator for Smoke Control Systems.”

CF-4

Flatblade Steel
Centrifugal Blower
Backward Inclined
Belt Drive
Single Width, Single Inlet

Description: Fan shall be a rectangular single width, single inlet backward inclined flat blade steel wheel belt driven centrifugal blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705). 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 and scroll side panels shall be a minimum 12 gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation and shall have a minimum 2" outlet discharge flange. A performance cut-off shall be furnished to prevent the recirculation of air in the fan housing. Bearing support shall be minimum 10 ga. welded steel. Lifting eyes 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: All steel fan components shall be LORENIZED™ 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 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, centrifugal backward inclined, flat blade type. Blades on all sizes shall be continuously welded to the backplate and deep spun inlet shroud. All sizes shall be securely keyed to the fan shaft. Wheel shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, 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-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125 percent 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 pillow block housing selected for a minimum L50 life in excess of 200,000 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 150 percent of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM.

Product: Fan shall be model CF-4 as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Catalog

Manual

Specifications

Submittals

FanDrafter files

Revit

CA-4 DWDI

CA-4 SWSI

CA DWDI

CAF-DW

CA SWSI

CF