Daikin Perfera FVXM A Series - Page 52

3 | Components
Service manual
52
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
INFORMATION
Note the position of the Faston connectors on the compressor wire terminals to
allow correct connection during installation.
V U
W
U Wire terminal U
V Wire terminal V
W Wire terminal W
CAUTION
Before measuring the compressor motor windings resistance, measure the
resistance of the multimeter probes by holding the probes against each other. If the
measured resistance is NOT 0Ώ, this value MUST be substracted from the measured
winding resistance.
4 Measure the resistance between the compressor motor windings U-V, V-W
and U-W.
Result: All measurements MUST be approximately the same.
Unit Compressor Winding resistance value
(at temperature of 20°C)
Class 20~35 M1C 1.89Ω ± 5%
Class 42~60 M1C 1.114Ω ± 5%
Class 71 M1C 0.274Ω ± 5%
Compressor motor winding
measurements are correct?
Action
Yes Continue with the next step.
No Replace the compressor, see "Repair
procedures"[455].
5 Measure the continuity of the U, V and W wires between the compressor and
the PCB. If no continuity, correct as needed, see "6.2Wiring diagram"[4223].
6 Connect the Faston connectors to the compressor wire terminals U, V and W