Greenheck Vari-Green 309028 Installation, Operation And Maintenance Manual page 55

1.7 MAINTENANCE
A. R~~er to Manufacturer's Installation, Operation and MaintenanceManual
maintenance procedures.
2. PRODUCTS
2.1 MANUFACTURER
A. Greenheck, PO Box 410, Schofield, Wisconsin 54476. Phone (715)359-6111.
Fax (715)355-2399. Website:
BELT DRIVE SIDEWALL MOUNTED. CENTRIFUGAL EXHAUST FANS - GREENHECK
2.2
MODEL CWB
A. General Description:
1. Discharge air directly away fr()m the mounting surface,
2. Sidewall mounted applications.
3. Performance capabilities up to 12,500 cubic feet per minute (cfm) and static pressure to
2.75 inches of water gauge. ,
4. Fans are available in fourteen sizes withnbminal wheel diameters ranging from 9
inches through 48 inches (098 - 300 unit sizes).
5. Maximum continuous operating temperature 400 Fahrenheit (204.4 Cel$ius).
6. Each fan shall bear a permanently affixed manufacture's engraved metal nameplate
containing the model numberand individual serial number.
B. Wheel:
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Specifier Note: Edit the following wheel material to fit the requirements of the project:
1. Non stick coating: similar to Teflon, coating allows buildup on wheel to be easily removed, Greenheck
Patent.
2. Aluminum.
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1. Material type: [aluminum] [non~stick coating]
2. Non-overloading, backward inclined centrifugal
3. Statically and dynamically bal~nced in accordance to AMCA Standard 204~05
4. The wheel cone and fan inlet will be matched and shall have precise running tolerances
for maximum performance and operating efficiency
C. Motors:
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Specifier Note: Edit the following motor enclosures to fit the requirements of the project:
1. Open driproof (ODP)-opening in the frame body and or end brackets.
2. Totally enclosed fan cooled (TEFC) - no opening in the frame or brackets. Equipped with an external.
fan to blow air over the motor.
3. Explosion resistant enclosure (EXP) - totally ,enclosed motor, with a housing constructed to contain
any explosion within the motor caused by the hazardous atmosphere entering the enclOsure and
being ignited.
Consult manufacturer for additional information .
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1. Motor enclosures: [Open driproof] [Totally enclosed fan cooled] [Explosion resistant]
2. Motors are permanently lubricated, heavy duty ball bearing type to match with the .fan
load and furnished at the specific voltage and phase.
3. Mounted on vibration isolators, out of the airstream
4. For motor cooling there shall be fresh air drawn into the motor compartment through an
area free of discharge contaminants.
5. Accessible for maintenance
D. Shafts and Bearings:
1. Fan Shaft shall be ground and polished solid steel with an anticorrosive coating.
2. Permanently sealed bearings or pillow block ball bearings.
3. Bearings shall be selected for a minimumL10 life in excess of 100,00 hours (equivalent
to L50 average life of 500,000 hours), at maximum cataloged operating speed.
4. Bearing are 100 percent factory tested.
CSI Specifications for Belt Drive Sidewall Mounted Centrifugal Exhaust Fan, Model-
Copyright 2010 Greenheck Fan Corporation
@
www.greenheck.com
..
CWB (08/10)
(10M), to find
.
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