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This publication contains the installation, operation and

maintenance instructions for standard units of the 

AC-

Centrifugal Roof and Wall Exhausters

.

• ACE-D / ACE-B
• ACW-D / ACW-B / ACW-HP / ACW-XP
• ACRU-D / ACRU-B / ACRU-HP / ACRU-XP

Carefully read this publication and any 
supplemental documents prior to any 
installation or maintenance procedure.

Loren Cook AC catalog provides additional information

describing the equipment, fan performance, available
accessories, and specification data.

For additional safety information, refer to AMCA 

publication 410-96, 

Safety Practices for Users and Installers 

of Industrial and Commercial Fans

.

All of the publications listed above can be obtained from 

Loren Cook Company by phoning (417)869-6474, 
extension 166; by FAX at (417)832-9431; or by e-mail at 
[email protected].

For information and instructions on special equipment,

contact Loren Cook Company at 417.869-6474.

Receiving and Inspection

Immediately upon receipt of an AC fan, carefully inspect

the fan and accessories for damage and shortage.

• Turn the wheel by hand to ensure it turns freely and 

does not bind.

• Check dampers (if included) for free operation of all 

moving parts.

• Record on the 

Delivery Receipt

 any visible sign of 

damage.

Rotating Parts & Electrical Shock Hazard:

Disconnect electric power before working on unit. 

Follow proper lockout / tagout procedures to ensure
the unit cannot be energized while being installed or
serviced.

A disconnect switch should be placed near the fan in
order that the power can be swiftly cut off, in case of
an emergency and in order that maintenance
personnel are provided complete control of the power
source.

Grounding is required. All field-installed wiring must
be completed by qualified personnel. All field-
installed wiring must comply with National Electric
Code (NFPA 70) and all applicable local codes.

Failure to follow these instructions could result in
death or serious injury.

Centrifugal Roof and Wall Exhausters

INSTALLATION, OPERATION AND MAINTENANCE

Handling

Lift the fan by the shipping

carton or lifting lugs provided
under top cap. 

NOTICE!

 

Never

lift by the shaft, motor or
housing.

Storage

If the fan is stored for any

length of time prior to installation,
store it in its original shipping
crate and protect it from dust,
debris and the weather.

Installation

If the fan was delivered with the motor unmounted, see 

the maintenance section for belt and pulley installation.

If the fan was purchased as a wall mount unit and a 

grease terminator or grease trough was not purchased, a 1-
1/16 inch diameter drain hole should be drilled at the bottom 
side of the fan for drainage.

Code requirements and environmental effects

The attachment of roof mounted fans to the roof curb
as well as the attachment of roof curbs to the building
structure must exceed the structural requirements
based on the environmental loading derived from the
applicable building code for the site. The local code
official may require variations from the recognized
code based on local data. The licensed engineer of
record will be responsible for prescribing the correct
attachment based on construction materials, code
requirements and environmental effects specific to
the installation.

Failure to follow these instructions could result in
death or serious injury.

AC

Lifting Lugs

®

Содержание ACE-B

Страница 1: ...in order that maintenance personnel are provided complete control of the power source Grounding is required All field installed wiring must be completed by qualified personnel All field installed wir...

Страница 2: ...in accordance with the diagram on the motor Leave enough slack in the wiring to allow for motor movement when adjusting belt tension Some fractional motors have to be removed in order to make the con...

Страница 3: ...1 8 3000 5 8 5 16 1104 1200 1 1 8 7 4200 3 4 3 8 1440 1800 1 1 4 7 6000 7 Ensure fan and ductwork are clean and free of debris 8 Close and secure all access doors 9 Restore power to fan Start up Turn...

Страница 4: ...e interval by a factor of 3 For vertical shaft installations divide the interval by a factor of 2 RPM Temp F Greasing Interval Up to 1000 30 to 120 6 months 120 to 200 2 months 1000 to 3000 30 to 120...

Страница 5: ...r slowly to back wheel off the shaft Replacing Pulleys and Belts 1 Clean the motor and fan shafts 2 Loosen the motor plate mounting bolts to relieve the belt tension Remove the belt 3 Loosen the pulle...

Страница 6: ...90 1 2 540 13 16 Above Drilled hole placement Right Wheel puller Troubleshooting Problem and Potential Cause Low Capacity or Pressure Incorrect direction of rotation Make sure the fan rotates in same...

Страница 7: ...p Cap Top Cap Lid 1b Top Cap Cylinder 2 Top Cap Clip 4 3 Motor Motor 4 Motor Plate Motor Plate 5 Baffle Baffle 6 Wheel Assembly Wheel Assembly 7 Bird Screen Bird Screen 8 Base Base 9 Conduit Conduit 1...

Страница 8: ...Baffle Baffle Baffle 6 Wheel Assembly Wheel Assembly Wheel Assembly Wheel Assembly 7 Bird Screen Bird Screen Bird Screen Bird Screen 8 Base Base Base Base 9 Conduit Conduit Conduit Conduit 10 Isolato...

Страница 9: ...Top Cap Top Cap Lid 1b Top Cap Cylinder 2 Top Cap Clip 4 3 Motor Motor 4 Motor Plate Spun Motor Plate 5 Baffle Baffle 6 Wheel Assembly Wheel Assembly 7 Bird Screen Bird Screen 8 Wall Flange Wall Flan...

Страница 10: ...e Spun Motor Plate 5 Baffle Baffle Baffle 6 Wheel Assembly Wheel Assembly Wheel Assembly 7 Bird Screen Bird Screen Bird Screen 8 Wall Flange Wall Flange Wall Flange 9 Isolator 3 Isolator 4 Isolator 4...

Страница 11: ...4 Lower Post 4 Lower Post 8 13 Wind Band Wind Band Wind Band 14 Brace 4 Brace 8 15 Power Assembly Power Assembly Power Assembly 16 Shaft Shaft Shaft 17 Bearing 2 Bearing 2 Bearing 2 18 Drive Sheave D...

Страница 12: ...pringfield Missouri 65803 4637 explaining in writing in detail your complaint and referring to the specific model and serial numbers of your fan Upon receipt by Loren Cook Company of your written comp...

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