Carrier 40VMA Series Installation And Maintenance Instructions Manual page 21

40VMA072 - 096
1. Remove the bottom cover plate as shown in Fig. 34.
2. Remove the six bolts from the front plate.
3. Support the fan sub-assembly from the bottom, and lift up to remove the fan sub-assembly.
4. After motor maintenance is complete, install the motor assembly in the reverse order of steps 1, 2, and 3 (steps 3, 2, and 1).
5. During this process, the indoor unit does not need to be removed.
IMPORTANT: During this process, the indoor unit does not need removed.
EVERY 3 MONTHS:
• Check the air filter condition. Clean or replace if
necessary.
:
EVERY 6 MONTHS
Follow 3-month maintenance schedule. In addition:
• Clean the condensate tray with suitable cleaning agent.
• Clean the grille and panel if applicable.
:
EVERY 12 MONTHS
Follow the 6-month maintenance schedule. In addition:
• Ensure all the electrical connections are secure.
• Check the condensate pump operation (if applicable).
• Check the heating and cooling action to confirm proper
operation.
Fig. 34 —Fan disassembly (072-096)
INDOOR UNIT ADDRESSING
For proper system operation, each indoor unit must have a
unique address set from 0 to 63. When setting an address by
remote controller; the outdoor units, indoor units, and MDC
must be powered on. If FE appears on the LED screen or
display board, this unit has no address. After setting all indoor
units' addresses, turn off the power supply to all indoor units to
clear errors.
Indoor units' addressing can be distributed automatically in the
heat pump system. When dip switch "S6" on the outdoor unit's
main PCB board is set to 00 (default set in factory), indoor
units are set for auto-addressing. When powering on for the
first time, it takes six minutes or more to finish auto-addressing
each indoor unit.
IMPORTANT: The heat recovery system cannot accomplish
this function at this time.
21