ESIE17-19C | Part 2. Troubleshooting 2.4. Component checklist
19/08/19 | Version 1.1 Page 51
Optimized Heating 4
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 "Basic removal" on page 76).
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 "Outdoor unit" on
page 117.
See "Outdoor unit" on
page 114.
See "Outdoor unit" on
page 118.
See "Outdoor unit" on page 118.
Check procedure
Preliminary check
Mechanical check
Electrical check
INFORMATION
Note the position of the cables on the compressor wire terminals to allow identical wiring during reinstallation.
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