Greenheck Fan Tube Axial Upblast Fans TAUB-CA User's Manual
Contents
1. drive units the adjustable motor pulley is preset at the factory to the will vary by model customer specified RPM Fan speed can be increased or decreased by the adjusting the pitch diameter of the motor pulley Multi groove variable pitch pulleys must be adjusted an equal number of turns open Always check the motor amperage reading and compare it to the amperage rating shown on the motor nameplate when changing fan RPM ROUTINE MAINTENANCE FOR DIRECT 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 Lubrication 3 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 LUBRICATION Lubrication of motors is intended only when fittings are provided Many fractional horsepower motors are permanently lubricated and require no further lubrication Motors supplied with grease fittings should be greased in accordance with the manufacturers directions on the motor nameplate 3 REMOVAL OF DUST AND DIRT Model TAUD fans require very little attention when moving clean air If exhausting dirty or contaminated air the propeller and b2. READ AND SAVE THESE INSTRUCTIONS _ Pat 453005 TUBE AXIAL UPBLAST FANS A GREENHECK Model TAUD Direct Drive Aluminum Propeller Building Value Air Model TAUB CA Belt Drive Aluminum Propeller g 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 INSTALLATION Fig 1 Lifting Point 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 dis
3. connect 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 4 the electrical supply must be kept out of the airstream This means ae 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 a
4. elt 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 Deflection Belt Span CORRECT Belt Span gt 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 vibra
5. esponsible for any installation or removal costs 453905 IOM Tube Axial Fans SIGREENHECK P O Box 410 Schofield WI 54476 0410 715 359 6171 greenheck com Copyright 2007 Greenheck Fan Corp
6. ey cannot be accidentally tripped when servicing the fan The fusible link damper lifters are located under the butterfly damper blades Point A shows where the safety pin MUST be placed when the fan is being serviced Point B shows where the safety pin is placed for storage when the fan is in service Fan sizes 24 30 and 36 also have fusible link damper lifters but they do not have the ability to be pinned when servicing due to differences in lifter designs In either case extreme care must be taken when working around the damper lifter assemblies or serious bodily injury or death may result 4 PRESTARTING CHECKS CAUTION See WARNING on page 1 FASTENERS Check all fasteners and set screws for tightness This is especially important j f for bearings and propellers Rotate the propeller by hand to assure it turns freely and does not rub on the fan tube Also lift the butterfly dampers to check if they open and close without binding a Nu PROPELLER ROTATION Direction of propeller rotation should be checked by turning the unit on momentarily Rotation should be in the same direction shown on the rotation decal affixed to the unit or as shown in Fig 3 To reverse rotation on three phase installations y simply interchange two of the three electrical leads For single phase installations follow the Rotation wiring diagram located on the motor nameplate Actual direction of rotation FAN RPM For belt
7. s 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 FOR MODEL TAUB SIZES 42 thru 60 WITH UL LISTED SMOKE EXHAUST CONSTRUCTION Lifter Arm Spring Lifter Tube prng Point A Install pin here to lockout damper fifters IMPORTANT Electrical This equipment must be U L LISTED installed with remote overload m POWER protection having adequate rating as to voltage frequency VENTILATOR horsepower and full load current per phase Where connected to a circuit Point B protected by fuses use time delay Pin Storage Location fuses For supply connection use wires rated for at least 90C 194 F SYSTEMS 76Y9 Installation When connecting electrical power to this fan do not restrict motor movement Motor must have sufficient movement for possible future belt or wheel adjustment 00453547 Lock Plate Spring Models TAUB with UL Emergency Smoke Listing will bear the label shown Fusible Link Assembly a WARNING gt These fans have heavy duty fusible link damper lifters under very high spring tension that must be pinned so th
8. s 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 b
9. tion 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 PARTS LIST Outlet Screen ee optional Windband Butterfly Dampers Damper Hinge Rod Windband Bracket Fusible Link Damper Lifters optional Motor Plate Tie Down Points Weatherhood X laa lt a Propeller Motor Bearing Cover Motor Pulley Shaft Bearings Belt s Fan Pulley Curb Cap Shaft Pulley Inlet Guard Access Door optional 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 r
10. utterfly 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 motor Excessive buildup of dirt on the damper blades may cause hinges to stick and bind resulting in loss of fan performance Cleaning of the motor should be limited to the exterior Removal of dust and dirt will assist in motor cooling Motors should never be sprayed directly with water steam or solvents 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 3 Lubrication 5 Removal of dust and dirt 2 Bearings 4 Belts 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 collar
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