Routine Maintenance
128
UNT-SVX07E-EN
•
Fan board attachment screws are located on the front
left underside and front right underside of the fan
board.
Removing/Replacing Motor
1.
Remove front panels of unit.
2. Remove drain pan and drain pan support (vertical
units) or remove drain pan (horizontal units).
3. Free the motor and crossover harnesses from the fan
board, either by unplugging from the motors and
valves and threading backwards, or by unplugging the
motor plug from the adapter boards.
4. Remove the fan board attachment screws and carefully
lower/slide out fan board.
5. Remove at least one fan housing and loosen fan Allen
screw on first fan. Loosen the wheel of the other (if a
double-shafted motor).
6. Unscrew the motor and remove.
7.
Insert the replacement motor (plug must face front of
fan board) and drive the screws in with 100 in·lb of
torque.
Figure 100. Motor attachment screws are behind motor
WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by Trane
or others, refer to the appropriate manufacturer’s
literature for allowable waiting periods for discharge of
capacitors. Verify with an appropriate voltmeter that all
capacitors have discharged. Failure to disconnect
power and discharge capacitors before servicing could
result in death or serious injury.
