ESIE16-02K
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Part 2. Troubleshooting
2.4. Component checklist
31/05/21
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Version 1.1
Page 53
RA R32 Split & multi split M-Series
2.4.2.2. Compressor
1. Check if the Daikin unit is connected to earth.
2. Check if the stop valve is open.
PRELIMINARY ACTIONS
1. Switch off the Daikin unit via the user interface.
2. Switch off the Daikin unit with the field supplied circuit breaker.
3. Remove plate work when required (refer to
PROCEDURE
1. Open the compressor insulation.
2. Check if the condition of the compressor dampers and piping is correct.
PRELIMINARY ACTIONS
1. Switch off the Daikin unit via the user interface.
2. Switch off the Daikin unit with the field supplied circuit breaker.
3. Remove plate work when required.
PROCEDURE
1. Open the compressor insulation.
2. Switch on the Daikin unit and measure the U, V, W inverter voltages. All voltages must be identical, if not, replace the inverter
PCB.
3. Switch off the Daikin unit via the user interface.
4. Switch off the Daikin unit with the field supplied circuit breaker.
5. Disconnect the Faston connectors U, V and W from the compressor, take picture.
6. Measure the compressor motor windings U-V, V-W and U-W.
Technical specification
Description
Type: inverter driven, swing double swing.
The compressor compresses the refrigerant in the refrigerant cir-
cuit.
Location
Piping diagram
Wiring diagram
Switch box
Component overview of unit
See
See
.
.
Check procedure
Preliminary check
Mechanical check
Electrical check
I
NFORMATION
Note the position of the cables on the compressor wire terminals to allow identical wiring during reinstallation.
