FOR MODEL TAUB (SIZES 42 thru 60) WITH UL LISTED SMOKE EXHAUST CONSTRUCTION
Lifter Arm
Spring Lifter Tube
Point “A”
Install pin here to lockout damper fifters
Point “B” | Spring Bracket |
Pin Storage Location |
|
Lock Plate | Spring |
LR- 34470
IMPORTANT
Electrical - This equipment must be installed with remote overload protection having adequate rating as to voltage, frequency, horsepower and full load current per phase. Where connected to a circuit protected by fuses, use time delay fuses. For supply connection use wires rated for at least 90C (194 F)
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
UR L LISTEDPOWER
VENTILATOR FOR SMOKE CONTROL SYSTEMS. 76Y9
Fusible Link Assembly
Models TAUB with UL Emergency Smoke Listing will bear the label shown.
WARNING!
These fans have heavy duty fusible link damper lifters under very high spring tension that must be pinned so they 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.
PRESTARTING CHECKS — CAUTION: See **WARNING** on page 1
FASTENERS - Check all fasteners and set screws for tightness. This is especially important 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.
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, simply interchange two of the three electrical leads. For single phase installations, follow the wiring diagram located on the motor nameplate.
FAN RPM - For belt drive units, the adjustable motor pulley is preset at the factory to the customer specified RPM. Fan speed can be increased or decreased by the adjusting the pitch diameter of the motor pulley.
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 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 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.
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