Greenheck Fan Ventilation Hood TAUB CA User Manual

Part # 453905  
READ AND SAVE THESE INSTRUCTIONS  
TUBE AXIAL UPBLAST FANS  
Model TAUD (Direct Drive, Aluminum Propeller)  
Model TAUB-CA (Belt Drive, Aluminum Propeller)  
Model TAUB (Belt Drive, Steel Propeller, High Temp.)  
®
INSTALLATION, OPERATION AND MAINTENANCE MANUAL  
Greenheck Model TAUD, TAUB-CA and TAUB fans are thoroughly inspected and test run at the factory, however damage may  
occur during handling and shipping. Consequently, it is important that the unit be carefully inspected for visible and concealed  
damage before beginning installation. Report any damage to the shipper immediately. In addition, assure all accessory items  
are present.  
Fig. 1 Lifting Point  
INSTALLATION  
(4 places)  
LIFTING - Attach a suitable chain or strap to the points depicted in  
Fig. 1. The fan should never be lifted by the motor, tie down points, belt  
tube, damper frame, windband or accessories.  
Carefully lift the fan to the roof curb and install fasteners in all holes  
provided in the unit base. The windband need not be removed for the  
lifting operation.  
ELECTRICAL CONNECTIONS - The electrical supply must be  
compatible with the fan motor voltage, phase and amperage capacity.  
The electrical supply line must be properly fused and conform to local  
and national electrical codes.  
For direct drive units, the electrical supply may be routed internally  
and exit through a hole provided in the fan housing if an optional service  
disconnect switch is provided.  
For belt drive units, the electrical supply line may be routed internally  
and exit the fan housing through a hole provided below the belt tube  
opening. The electrical supply line should then be either: (1) connected  
to an optional service disconnect switch, or (2) wired directly to the  
motor.  
For belt drive units in continuous high temperature installations,  
the electrical supply must be kept out of the airstream. This means  
bringing the supply lines off the roof deck not through the fan. The  
electrical supply line should then be either: (1) connected to an optional  
service disconnect switch, or (2) wired directly to the motor.  
For belt drive units in emergency smoke removal installations, the electrical supply must be kept out of the airstream.  
They may also require an isolated power supply so that if power is cut to the building in the event of a fire, the fan will continue  
to operate. Check the local and national electrical codes for emergency smoke removal fans.  
** WARNING **  
Disconnect and secure to the “off” position all electrical power to the fan prior to inspection or  
service.  
Caution must be used when working around the fusible link damper lifters. They contain preloaded  
springs and may open the dampers unexpectedly.  
Models TAUD and TAUB-CA may have fusible link damper lifters. All model TAUB units designed  
for emergency smoke operation have fusible link damper lifters. TAUB fans UL listed as “Power  
ventilators for smoke control systems” in sizes 42, 48, 54 and 60 have extra heavy duty fusible  
link damper lifters under high spring tension that, for safety reasons, must be pinned to prevent  
accidental release during inspection or service. See page 2 for details on how to secure the lifter  
arms.  
FAILURE TO COMPLY WITH THESE SAFETY PRECAUTIONS MAY  
RESULT IN SERIOUS INJURY OR DEATH!  
 
ROUTINE MAINTENANCE FOR BELT DRIVE FANS — CAUTION: See **WARNING** on page 1  
Once the fan has been put into operation, periodic maintenance should be scheduled to assure reliability and performance. The  
following items should be checked as a part of this maintenance schedule:  
1. Fasteners and set screws  
2. Bearings  
3. Lubrication  
4. Belts  
5. Removal of dust and dirt  
1. FASTENERS AND SET SCREWS - Normal fan vibration has a tendency to loosen mechanical fasteners. Periodic inspection  
should include checking all fasteners and set screws, including the propeller fasteners, for tightness.  
2. BEARINGS - The pillow block ball bearings installed on Model TAUB-CA and TAUB fans are air handling quality, grease  
lubricated, self aligning, and selected for a minimum L(10) 40,000 hours (equal to L(50) 200,000 hours). However, bearings are  
one of the most critical parts of a fan and should be inspected at regular intervals. Locking collars, set screws and fasteners  
attaching the bearings to the fan should also be checked.  
3. LUBRICATION - Bearings operating in a clean environment and temperatures between 32°F and 200°F should be lubricated  
semiannually using a high quality lithium based grease. Bearings operating outside these temperature parameters require  
special high or low temperature grease. If contamination or high moisture conditions exist, more frequent lubrication is  
required.  
Model TAUB-CA and TAUB fans are equipped with extended lubrication lines as standard. The grease fittings are located on  
the exterior of the fan housing next to the motor weather cover and should be wiped clean before adding grease.  
When adding grease to the fan bearings, rotate the fan shaft while slowly operating the manual grease gun. Be careful not to  
unseat the bearing seals by over lubricating or using excessive pressure. Stop pumping when a very slight resistance is  
felt at the grease gun.  
Lubrication of motors is intended only when fittings are provided. Many fractional horsepower motors are permanently  
lubricated for life and require no further lubrication. Motors supplied with grease fittings should be greased in accordance with  
the manufacturer’s directions on the motor nameplate.  
4. BELTS - Premature belt failures are frequently caused by improper belt tension (either too loose or too tight), misaligned  
pulleys or by prying belts on and off pulleys. The proper tension for operating a V-belt is the lowest tension at which the belts  
will not slip at peak load conditions. For initial tensioning, the proper belt deflection is 1/64 in. for each inch of belt span,  
measured half way between the pulley centers.  
Example: A belt span of 32 inches should have a 32/64 or 1/2 inch of deflection using moderate thumb pressure at the  
midpoint of the belt span. See drawing below. Check belt tension after the first 24 hours of operation, after 100 hours of  
operation and periodically thereafter. Belt tension can be adjusted by loosening the motor plate hinge bolts and adjusting the  
jack screws as required.  
When replacing belts, always use the same size and type as originally supplied by the factory. Check pulleys for wear and  
replace both pulleys and belts if wear is evident. NOTE: Model TAUB may require high temperature belts. It is very important  
that the drive pulleys remain in proper alignment after adjustments are made. Misalignment of pulleys will result in premature  
belt and bearing failure, noise and loss of fan efficiency.  
Belt Span  
Deflection =  
64  
CORRECT  
WRONG  
WRONG  
WRONG  
Belt Span  
5. REMOVAL OF DUST AND DIRT - Model TAUB-CA and TAUB fans require very little attention when moving clean  
air. If exhausting dirty or contaminated air, the propeller and butterfly damper assembly should be cleaned periodically.  
Accumulations of dirt and debris on the propeller blades may cause an unbalanced condition resulting in excessive vibration  
and premature failure of the propeller and bearings. Excessive buildup of dirt on the damper blades may cause binding and  
sticking blade hinges resulting in loss of fan performance.  
Periodically, the motor weather cover should be removed and the motor cleaned of dirt and debris. Cleaning should be limited  
to the motor exterior. Removal of dust and dirt from the motor will assist in motor cooling. Motors should never be sprayed  
directly with water, steam or solvents.  
3
 
PARTS LIST  
Butterfly Dampers  
Damper Hinge Rod  
Windband Bracket  
Motor Plate  
Weatherhood  
Motor  
Outlet Screen  
(optional)  
Windband  
Fusible Link Damper  
Lifters (optional)  
Tie Down Points  
Propeller  
Bearing Cover  
Shaft Bearings  
Fan Pulley  
Motor Pulley  
Belt(s)  
Curb Cap  
Shaft Pulley  
Inlet Guard  
(optional)  
Access Door  
(optional)  
Always provide the fan serial number when requesting parts or information.  
WARRANTY  
Greenheck warrants this equipment to be free from defects in material and workmanship for a period of one year from the  
purchase date. Any units or parts which prove defective during the warranty period will be replaced at our option when  
returned to our factory, transportation prepaid.  
Motors are warranted by the motor manufacturer for a period of one year. Should motors furnished by Greenheck prove  
defective during this period, they should be returned to the nearest authorized motor service station. Greenheck will not  
be responsible for any installation or removal costs.  
#453905 IOM Tube Axial Fans  
Rev. 2, February 2007  
Copyright © 2007 Greenheck Fan Corp.  
 

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