Table of Contents
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This publication contains the installation, opera-
tion and maintenance instructions for standard units
of the VA/AVA/AF- Vane Axial Inline Blowers.
• VAD/VAB/VAHB
• AFB-C/AFBV-C
• AFB-S/AFBV-S
Carefully read this publication prior to any installa-
tion or maintenance procedure.
Loren Cook catalog, VA/AVA/AF, provides additional
information describing the equipment, fan performance,
available accessories, and specification data.
For additional safety information, refer to AMCA publi-
cation 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@lorencook.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 dam-
age and shortage immediately upon receipt of the fan.
• Turn the prop by hand to ensure it turns freely and
does not bind.
• Record on the Delivery Receipt any visible sign of
damage.
Handling
Handle your equipment with care. Some fans are pro-
vided with lifting lugs or holes for easy handling. Others
must be handled using nylon straps or well-padded
chains and cables which protect the fan's coating and
housing. Spreader bars should be used when lifting large
parts.
Axial fans should be lifted by using straps around the
fan housing only. DO NOT LIFT AXIAL FANS BY THE
MOTOR, MOTOR BASE, PROP OR FLANGES.
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
Storage
If the fan is stored for any length of time prior to instal-
lation, completely fill the bearings with grease or mois-
ture-inhibiting oil. Refer to Lubricants on page 6. Also,
store the fan in its original crate and protect it from dust,
debris and the weather.
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
• AVAD/AVAB
• AFB-H/AFBV-H
• AFD-C/AFDV-C
VA/AVA/AF
Outdoor Storage
To maintain good working condition of a Vane Axial when
it is stored outdoors, or on a construction site, follow the
additional steps below.
• Cover the inlet and outlet, and belt tunnel opening to
prevent the accumulation of dirt and moisture in the
housing.
• Periodically rotate the prop and operate dampers (if
supplied) to keep a coating of grease on all internal
bearing parts.
• Periodically inspect the unit to prevent damaging condi-
tions.
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.
Installation
To prevent damage to the fan during shipping, motors 25
HP and larger, and extremely heavy motors (cast iron or
severe duty) are shipped loose and must be field mounted
by bolting the motor on the motor mounting plate in the
existing mounting slots.
VAD
Vane Axial Inline Blowers
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Summary of Contents for Loren Cook VA
- Page 1 Outdoor Storage tion and maintenance instructions for standard units To maintain good working condition of a Vane Axial when of the VA/AVA/AF- Vane Axial Inline Blowers. it is stored outdoors, or on a construction site, follow the additional steps below.
-
Page 2: Duct Installation
Note Extreme vibration is a serious problem that may cause structural and mechanical failure. To help vibration and noise from being transferred to the building, isolators are recommended. Isolation Installation Floor Mounted Spring Isolators a. Mount fan and motor on unitary base (if supplied). Ceiling Mounted Spring Isolator Rubber-In-Shear Ceiling Isolators b. -
Page 3: Wiring Installation
Discharge Duct Turns Tolerance OFFSET ANGULAR OFFSET/ANGULAR When possible, allow 3 duct diameters between duct Maximum Center Distance turns or elbows and the fan outlet. Refer to the drawings at Up thru 12” 1/16” the top of page 3. 12” up through 48 1/8”... -
Page 4: Wiring Diagrams
Use of Variable Frequency Drives consulted for recommended line impedence and usage of line reactors or filters, if the lead length between the VFD Motors - and the motor exceeds 10 feet (3m). Motors that are to be operated using a Variable Fre- Fan - quency Drive (VFD) must be VFD compatible. - Page 5 Prop Concerns e. Replace hub cover. f. Reconnect power supply. Instructions for adjusting blade angle setting on adjust- able pitch Vane Axial Inline Blowers (AVA). 1. Place blade in 3 o’clock or 9 o’clock position. 2. Loosen retaining nut on blade bolt. Note: Verify that the fan at the new pitch does not 3.
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Page 6: Operation
Start Up Personal Safety Turn the fan on. In variable speed units, set the fan to Disconnect switches are recommended. Place the its lowest speed and inspect for the following: disconnect switch near the fan in order that the • Direction of rotation. power can be swiftly cut off in case of an emergency, •... - Page 7 Should the motor prove defective within a one-year (Clean, Dry & Smooth) 161 to 200 Inlet Vane 201 to 400 (*) period, contact your local Loren Cook representative or Axial Blowers up to 160 your nearest authorized electric motor service representa- Extreme Conditions...
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Page 8: Bearing Replacement
g. Tighten in place. h. Install belts on pulleys and align as described in the Belt and Pulley Installation section. Bearing Replacement The fan bearings are pillow block ball bearings. a. Loosen and remove belts by lowering motor mounting plate with the four adjusting nuts. - Page 9 VAB Parts List Item Description Drum Weldment Shaft Bearing (2) Prop Prop Bushing Belt Tunnel Motor Plate Inner Drum Nose Motor Drive Sheave Driven Sheave Belt Airflow Item VAHB Parts List Description Drum Weldment Shaft Bearing (2) Prop Prop Bushing Belt Tunnel Motor Plate Inner Drum Nose...
- Page 10 AVAD Parts List Item Description Drum Weldment Prop Prop Bushing Motor Wiring Box Motor Mounting Bolts Airflow AVAB Parts List Item Description Drum Weldment Shaft Bearing Prop Prop Bushing Motor Plate Inner Drum Nose Motor Drive Sheave Driven Sheave Belt Belt Tunnel (2) Airflow...
- Page 11 AFB Parts List Item Description Drum Weldment Shaft Bearing Motor Plate Prop C-Cast Bushing H-High Temperature Construction S-Stainless Steel Construction Airflow Prop Bushing Bearing Cover Motor Drive Sheave Driven Sheave Belt AFBV Parts List Item Description Drum Weldment Shaft Bearing Motor Plate Prop C-Cast Bushing...
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Page 12: Troubleshooting
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.
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