Acer 471558 Bedienungsanleitung PDF herunterladen (Seite 4)

Model G/GB Centrifugal Roof Exhaust Fans

WARNING

Installation, troubleshooting and parts replacement is

to be performed only by qualiﬁed personnel.

WARNING

Disconnect power before installing or servicing.

CAUTION

A fan manufactured with an explosion resistant motor

does not certify the entire unit to be explosion proof.

Installation

Typical Roof Mounting Installation

1. On the roof surface, cut an appropriate sized hole

and follow manufacturer’s instructions on curb

installation. Caulk and ﬂash the curb to ensure a

water tight seal.

2. If unit is equipped with a backdraft damper, it should

be installed now.

3. Remove motor cover. Access to the motor

compartment is accomplished by removing the

screws as shown in Figure 3.

4. Only on GB Belt Drive fans. On the drive frame use

the lifting lugs to lift and place the unit on top of roof

curb. (Refer to Figure 2 on page 2).

5. Secure fan to curb using a minimum of eight lag

screws, metal screws or the suitable fasteners.

Shims may be required depending upon curb

installation and rooﬁng material.

Note: Severe duty applications may require

additional fasteners.

6. Verify power line wiring is de-energized before

connecting fan motor to power source.

7. Connect power supply wiring to the motor as

indicated on the motor nameplate or terminal box

cover. Check the power source for compatibility with

the requirements of your equipment.

8. Check fan wheel for free rotation, re-center

if necessary.

9. Check all fasteners for tightness.

10. Mount and wire safety disconnect switch under

motor cover. Wire control switches at ground level,

refer to Figure 4.

11. Replace motor cover.

MOTOR

115/208-230/60/1

208-230/460/60/3

MOTOR

J-BOX

SUPPLY VOLTAGE

Typical Wiring Diagram

Vari-Green Wiring

For Vari-Green wiring refer to the Vari-Green

Motor IOM PN 473681 for complete wiring and

operation instructions.

Figure 4

1 2 3 4 5 6 7 8 9 10 11 12

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