Daikin FTXP20-71L, Руководство по обслуживанию

Страница: 56 / 192

3 | Components
Service manual
56
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
Split Comfora R32
ESIE18-01E – 2023.01
Compressor motor winding
measurements are correct? Action
Yes Continue with the next step.
No Replace the compressor, see
"3.2.2 Repair procedures" [
4
58].
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
159].
6 Connect the Faston connectors to the compressor wire terminals U, V and W
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
"3 Components" [
4
46].
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.