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Components
Service manual
61
RXM20~71R(9) + ARXM25~71R(9) + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11B – 2022.02
V
U
W
U
Wire terminal U
V
Wire terminal V
W
Wire terminal W
7
Install the compressor wire terminals cover.
8
Install the compressor insulation.
9
Turn ON the power using the respective circuit breaker.
10
Start the unit operation via the user interface.
CAUTION
NEVER operate the compressor with the compressor wire terminals cover removed.
11
Wait for – or create condition to operate the compressor.
12
Once the compressor operates, measure the U-V-W inverter voltages.
ALWAYS measure at the PCB side.
Result:
All measurements MUST be the same.
Inverter voltage measurements are
correct?
Action
Yes
Continue with the next step.
No
Perform a check of the appropriate PCB,
see
13
While compressor is operating, measure the current in each phase U, V and
W. ALWAYS measure at the PCB side.
Result:
All measurements MUST be the same.
Compressor motor winding current
measurements are correct?
Action
Yes
Perform an insulation check of the
compressor, see
No
Preventively replace the compressor,
see