Trane Gas Unit Heaters Manuel d'installation télécharger pdf (Page 35)

Maintenance

GKND-SVX01B-EN 35

Installation Instructions for Field

Replacement of Power Venter Motor

Important: This replacement must be performed only

by a qualified technician.

Note: All hardware (screws, nuts, washers) that will be

removed from the unit will be reused for this motor

replacement. DO NOT LOSE ANY OF THESE

PARTS.

Tools and Parts Needed

Wire Stripper and Crimper; Slotted Head and #2 Phillips

Head Screwdriver; 3/8-in. Wrench; 1/8-in. Allen Wrench

(long handle); marker; (1) 1/4-in. push on terminal for Wire.

Notes:

• Remove the cover from the Relay Junction Box (Item 1)

by removing two screws (Item 2) top and bottom.

Disconnect both wires from the motor lead ends. One

is connected to terminal #4 on the venter relay, and the

other is connected with a wire nut to a black wire.

• Remove the sensing tube (Item 3) from the Pressure

Switch/Mounting Bracket (Item 3) at motor end only.

Separated Combustion Units: Remove both tubes at

motor end only—note location.

• Mark locations of the Relay Junction Box and Pressure

Switch Mounting Brackets along with the Motor (Item

10) mounts on the Mounting Adapter Plate (Item 4)—

using a marker.

• Remove nut (Item 5) that secures the Motor Support

Shipping Bracket (Item 6) to the Mounting Adapter

Plate. Pull this bracket away from the Motor Mounting

Adapter Plate.

• Remove three phillips head screws (Item 7) on the

Motor mounting Adapter Plate. Remove the Motor/

Blower Wheel/Adapter Plate assembly from the Power

Venter Blower Housing (Item 8).

WARNING

Hazardous Voltage and Gas!

Turn off the gas supply and disconnect all electric

power, including remote disconnects before servicing

unit. Follow proper lockout/tagout procedures to

ensure the power can not be inadvertently energized

and the gas can not be inadvertently turned on. Failure

to turn off gas or disconnect power before servicing

could result in death or serious injury.

Figure 24. Identification of parts

Ref. No. Description

1 Relay Junction Box/Mounting

Bracket Assembly

2 #8 Drill Screws (2 required)

3 Pressure/Mounting Bracket

Assembly

4 Mounting Plate Adapter

5 Keps Nut w/External Tooth

Lockwasher (4 required)

6 Motor Support Shipping Bracket

7 Phillips Head Screws (3 required)

8 Power Venter Blower Housing

9Blower Wheel

10 Motor

11 Space Washers (3 required)

12 Machine Screw (3 required)

13 Sensing Tube

14 Set Screw

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 41 42 43

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Trane Gas Unit Heaters Manuel d'installation Page 35

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