7
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage.
Do not use caustic household drain cleaners in the condensate
pan or near the coil. Drain cleaners can quickly destroy a coil.
CAUTION
!
C. Disconnecting the Control Box Assembly
1. Disconnect power.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury
or death.
Before installation or servicing system, always turn off main
power to system. There may be more than one disconnect
switch. Turn off accessory heater power if applicable. Lock out
and tag switch with a suitable warning label.
!
WARNING
2. Remove control box cover (four screws).
A13385
Fig. 7
−
Control Box Cover Removal
3. Remove control box assembly (five screws). If there is not
enough slack in field wiring (high and low voltage), it is
recommended to disconnect field wiring.
A13386
Fig. 8
−
Control Box Removal
D. FPM(A,B)N, FMC4X, FMU4X
−
Disconnecting the Blower
Assembly
1. Disconnect power.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury
or death.
Before installation or servicing system, always turn off main
power to system. There may be more than one disconnect
switch. Turn off accessory heater power if applicable. Lock out
and tag switch with a suitable warning label.
!
WARNING
2. Remove control box cover (four screws). (See Fig. 7.)
3. Disconnect the (four) blower
−
motor power wires, noting
connection locations. (See Fig. 8.)
4. Loosen the conduit holding ties.
A13387
Fig. 9
−
Conduit Holding Ties
5. Remove the four outer screws that attach the blower support
plate to each evaporator coil support.
