COOK VA Installation, Operation And Maintenance Manual

Vane axial inline blowers;

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®
This publication contains the installation, operation and
maintenance instructions for standard units of the VA/
AVA/VF: Vane Axial Inline Blowers.
• VAD/VAB/VAHB
• AFB-C/AFBV-C
• AFB-S/AFBV-S
Carefully read this publication and any
supplemental documents prior to any
installation 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:
• lorencook.com
• info@lorencook.com
• 417-869-6474 ext. 166
For information and instructions on special equipment,
contact Loren Cook Company 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 propeller 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 eyes 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 not be lifted by using straps around the
fan housing only.
NOTICE! Never lift by the motor, motor base, propel-
ler or flanges.
VAD
VA/AVA/AF IO&M
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
• AVAD/AVAB
• AFB-H/AFBC-H
• AFD-C/AFDV-C
Rotating Parts & Electrical Shock Hazard:
Fans should be installed and serviced by qualified person-
nel only.
Disconnect electric power before working on unit (prior to
removal of guards or entry into access doors).
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 emer-
gency and in order that maintenance personnel are pro-
vided 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. Ensure the power supply (voltage,
frequency and current carrying capacity of wires) is in ac-
cordance with the motor nameplate.
Fans and blowers create pressure at the discharge and
vacuum at the inlet. This may cause objects to get pulled
into the unit and objects to be propelled rapidly from the
discharge. The discharge should always be directed in a
safe direction and inlets should not be left unguarded. Any
object pulled into the inlet will become a projectile capable
of causing serious injury or death.
When air is allowed to move through a non-powered fan,
the impeller can rotate, which is referred to as windmill-
ing. Windmilling will cause hazardous conditions due to
unexpected rotation of components. Impellers should be
blocked in position or air passages blocked to prevent draft
when working on fans.
Friction and power loss inside rotating components will
cause them to be a potential burn hazard. All components
should be approached with caution and/or allowed to cool
before contacting them for maintenance.
Under certain lighting conditions, rotating components
may appear stationary. Components should be verified to
be stationary in a safe manner, before they come into con-
tact with personnel, tools or clothing.
Failure to follow these instructions could result in death or
serious injury.
The attachment of roof mounted fans to the roof curb as
well as the attachment of roof curbs to the building struc-
ture must exceed the structural requirements based on the
environmental loading derived from the applicable build-
ing 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 pre-
scribing the correct attachment based on construction ma-
terials, code requirements and environmental effects spe-
cific to the installation.
1
VA/AVA/AF
Vane Axial Inline Blowers
B51146-004

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Summary of Contents for COOK VA

  • Page 1 Vane Axial Inline Blowers INSTALLATION, OPERATION AND MAINTENANCE MANUAL ® This publication contains the installation, operation and maintenance instructions for standard units of the VA/ AVA/VF: Vane Axial Inline Blowers. Rotating Parts & Electrical Shock Hazard: • VAD/VAB/VAHB • AVAD/AVAB Fans should be installed and serviced by qualified person- •...
  • Page 2: Duct Installation

    Avoid a free discharge into the plenum. This will result in 2. Elevate fan to provide room to insert isolators between lost efficiency because it doesn’t allow for a static regain. the fan and foundation and block in position. VA/AVA/AF IO&M B51146-004...
  • Page 3: Pulley Alignment

    Do not change the pulley pitch diameter to change ten- the motor. Correctly label the circuit on the main sion. This will result in a different fan speed. power box and always identify a closed switch to promote safety (i.e., red tape over a closed switch). VA/AVA/AF IO&M B51146-004...
  • Page 4: Wiring Diagrams

    Drive (VFD) must be VFD compatible. At a mini- Y-Connection Delta-Connection mum, this must be a Premium Efficiency motor with Class F insulation. Motors that are not supplied by Loren Cook Low Voltage High Voltage Low Voltage High Voltage...
  • Page 5: Blade Angle Adjustment

    1055 1070 990 1015 1995 2045 1220 1250 1640 1670 980 1000 1060 1075 990 1010 1995 2040 1225 1250 1650 1675 985 1005 1065 1080 985 1005 1990 2030 1230 1245 1655 1685 995 1010 1070 1085 VA/AVA/AF IO&M B51146-004...
  • Page 6: Maintenance

    Inspect belt alignment and tension. Adjust and tighten as nec- up to 160 Extreme essary. Conditions 161–200 (dirty/wet/rough) 24 Hour Interval 201–400 (*) *Exceptions to the greasing interval chart: Inspect belt tension, bolts, setscrews and motor mounting bolts. Adjust and tighten as necessary. VA/AVA/AF IO&M B51146-004...
  • Page 7: Motor Bearings

    Pulley and Belt Replacement should be halved. 1. Remove pulleys from their respective shafts. Loren Cook Company uses petroleum lubricant in a lithi- 2. Clean the motor and fan shafts. um base. Other types of grease should not be used unless 3.
  • Page 8: Parts List

    Motor Plate Inner Drum Nose Motor Drive Sheave Driven Sheave Belt Airflow VAHB Part No. Description Drum Weldment Shaft Bearing (2) Propeller Propeller Bushing Belt Tunnel Motor Plate Inner Drum Nose Motor Drive Sheave Driven Sheave Belt Airflow VA/AVA/AF IO&M B51146-004...
  • Page 9 Drum Weldment Propeller Propeller Bushing Motor Wiring Box Motor Mounting Bolts Airflow AVAB Part No. Description Drum Weldment Shaft Bearing Propeller Propeller Bushing Motor Plate Inner Drum Nose Motor Drive Sheave Driven Sheave Belt Belt Tunnel (2) Airflow VA/AVA/AF IO&M B51146-004...
  • Page 10 Drive Sheave Airflow Driven Sheave Belt AFBV Part No. Description Drum Weldment Shaft Bearing Motor Plate Propeller C-Cast Bushing H-High Temperature Construction S-Stainless Steel Construction Propeller Bushing Bearing Cover Motor Drive Sheave Driven Sheave Belt Vane Section Airflow VA/AVA/AF IO&M B51146-004...
  • Page 11 AFD-C Part No. Description Drum Weldment Airflow Propeller Prop Bushing Motor Motor Mounting Box AFDV-C Part No. Description Drum Weldment Airflow Propeller Prop Bushing Motor Motor Mounting Box Vane Section VA/AVA/AF IO&M B51146-004...
  • Page 12: Troubleshooting

    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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