Trane GHND-SVX01A-EN - Manual (Page 51)

GHND-SVX01A-EN • High Efficiency Propeller Fan Gas Unit Heater 51
Part Identification
TOOLS AND PARTS NEEDED:
Wire Stripper and Crimper; Slotted Head and #2 Phillips Head Screwdriver; 3/8" Wrench;
1/8" Allen Wrench (long handle); marker; (1) 1/4" push on terminal for Wire.
Note:
1. 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.
2. Remove the sensing tube (Item 13) from the Pressure Switch/Mounting Bracket
(Item 3) at motor end only. Separated Combustion Units: Remove both tubes at
motor end only note location.
3. 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.
4. 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.
5. 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).
6. Remove the Blower Wheel (Item 9) from the motor shaft - by removing the set
screw (Item 14) using a 1/8" Allen Wrench.
7. Remove the three Motor Mounting Nuts (Item 5), Space Washers (Item 11), and
Screws (Item 12). Do not loose these parts! Using caution - the motor will disengage
from the Mounting Adapter Plate, along with the Relay Junction Box and Pressure
Switch Mounting Brackets will also disengage.
8. Reverse Order to install the new Power Venter Motor.
9. TEST FIRE THE UNIT FOR A FEW CYCLES, MAKING SURETHAT THE UNIT IS
OPERATING SATISFACTORY.