8
Corporate Of
fi
ces:
2015 E. Dale Street
Spring
fi
eld, MO 65803 417.869.6474
www.lorencook.com
CP-BK IOM - April 2002
Limited Warranty
Loren Cook Company warrants that your Loren Cook fan was manufactured free of defects in materials and workmanship, to the extent stated herein. For a period of one (1)
year after date of shipment, we will replace any parts found to be defective without charge, except for shipping costs which will be paid by you. This warranty is granted only to
the original purchaser placing the fan in service. This warranty is void if the fan or any part thereof has been altered or modified from its original design or has been abused,
misused, damaged or is in worn condition or if the fan has been used other than for the uses described in the company manual. This warranty does not cover defects resulting
from normal wear and tear. To make a warranty claim, notify Loren Cook Company, General Offices, 2015 East Dale Street, Springfield, 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 complaint, you will be
notified, within thirty (30) days of our receipt of your complaint, in writing, as to the manner in which your claim will be handled. If you are entitled to warranty relief, a warranty
adjustment will be completed within sixty (60) business days of the receipt of your written complaint by Loren Cook Company. This warranty gives only the original purchaser
placing the fan in service specifically the right. You may have other legal rights which vary from state to state.
Centrifugal Blowers
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
CP-BK
CP-BK
• Periodically rotate the wheel.
• Periodically inspect the unit to prevent damaging condi-
tions.
Installation
Motor Installation
Most motors are shipped mounted on the fans with belts
and drives installed. However, extremely heavy motors and
drives are shipped separately. These motors and drives will
require
fi
eld installation. Please refer to pages 4.
Personal Safety
Disconnect switches are recommended. Place the
disconnect switch 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.
ITEM
NO.
DESCRIPTION
VENTURI STACK
CURB CAP W/PLENUM INLET BOX
SIDE PEDESTAL COVER
MOTOR MOUNT
MOTOR
HOUSING COVER
BEARINGS (2)
SHAFT - 1"
WEATHER COVER FRONT
WEATHER COVER CAP
WHEEL (STEEL W/ALUMINUM HUB)
INLET CONE - ALUMINUM (W/O FLANGE)
WHEEL HOUSING
PEDESTAL WELDMENT
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CP-BK Parts List
Troubleshooting
Problem and Potential Cause
Low Capacity or Pressure
•Incorrect direction of rotation. Make sure the fan rotates in same direction as the arrows on the motor or belt drive assembly.
•Poor fan inlet conditions. There should be a straight clear duct at the inlet.
•Improper wheel alignment.
Excessive Vibration and Noise
•Damaged or unbalanced wheel.
•Belts too loose; worn or oily belts.
•Speed too high.
•Incorrect direction of rotation. Make sure the fan rotates in same direction as the arrows on the motor or belt drive assembly.
•Bearings need lubrication or replacement.
•Fan surge or incorrect inlet or outlet condition.
Overheated Motor
•Motor improperly wired.
•Incorrect direction of rotation. Make sure the fan rotates in same direction as the arrows on the motor or belt drive assembly.
•Cooling air diverted or blocked.
•Improper inlet clearance.
•Incorrect fan RPMs.
•Incorrect voltage.
•Missing heat shield from inside pedestal.
Overheated Bearings
•Improper bearing lubrication
•Excessive belt tension.
•Missing heat shield from inside pedestal.
This publication contains the installation, operation
and maintenance instructions for standard units of the
CP-BK Kitchen Exhaust Fan
.
• CP-BK
Carefully read this publication prior to any installa-
tion or maintenance procedure.
Loren Cook catalog,
CP,
provides additional information
describing the equipment, fan performance, available
accessories, and speci
fi
cation data.
For additional safety information, refer to AMCA publica-
tion 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 info@loren-
cook.com.
For information on special equipment, contact Loren
Cook Company Customer Service Department at 417/869-
6474.
Receiving and Inspection
Carefully inspect the fan and accessories for any damage
and shortage immediately upon receipt of the fan.
• Turn the wheel by hand to ensure it turns freely and
does not bind.
• Record on the
Delivery Receipt
any visible sign of dam-
age.
Handling
Lift the fan by the lifting eyes.
Never lift by the shaft,
motor, or housing.
Storage
If the fan is stored for any length of time prior to installa-
tion, completely
fi
ll the bearings with grease or moisture-
inhibiting oil (refer to Lubricants on page 5). Rotate the
wheel several revolutions every three to
fi
ve days to keep a
coating of grease on all internal bearing parts.
Store the fan in its original crate and protect it from dust,
debris and the weather.
Outdoor Storage
To maintain good working condition of the fan when it is
stored outdoors, follow the additional instructions below.
• Coat the shaft with grease or a rust preventative com-
pound.
• Wrap bearings for weather protection.
• Cover the inlet and outlet to prevent the accumulation of
dirt and moisture in the housing.
WARNING
This unit has rotating parts. Safety precautions
should be exercised at all times during installation,
operation, and maintenance.
ALWAYS disconnect power prior to working on fan.
