Greenheck Fan TAUB-CA, TAUD User Manual

READ AND SAVE THESE INSTRUCTIONS

Part # 453905

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.

INSTALLATION

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.

Fig. 1 Lifting Point

(4 places)

** 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!

FOR MODEL TAUB (SIZES 42 thru 60) WITH UL LISTED SMOKE EXHAUST CONSTRUCTION

Lifter Arm

Spring Bracket

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 90 C (194 F)

LR­34470

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.

IMPORTANT

00453547

U

L

R

VENTILATOR
FOR
SMOK E
CONTROL
SYSTEMS.
76Y9

Models TAUB with UL Emergency Smoke
Listing will bear the label shown.

Point “B”
Pin Storage Location

Fusible Link
Assembly

Spring Lifter Tube

Point “A”
Install pin here to
lockout damper fifters

SpringLock Plate

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.

LISTED
POWER

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

Actual direction of rotation

Rotation

will vary by model

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 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.

2