ESIE13-03
|
Part 2. Troubleshooting
4. Component checklist
13/05/15
|
Version 2.0
Page 69
Ground source heat pump
4.10. Compressor M1C
1. Switch off the Daikin Altherma GSHP via the user interface.
2. Remove the switch box cover, refer to
"Removing the switch box cover" on page 89
.
3. Disconnect the connectors U, V and W from PCB A10P.
4. Measure the compressor motor windings U-V, V-W and U-W; all measurements must read 1.7 Ohm.
5. Megger the compressor using 500 or 1000 V DC, the insulation must be higher than 3 MOhm.
6. Replace the compressor if the windings and/or insulation measurements fail.
7. Run the compressor and measure the current in each phase; the current for each phase should be identical and between 4 and
7 A. When the current exceeds 10 A during normal operation, it could indicate internal wear of the compressor. In that case it
can be decided to preventively replace the compressor, refer to
"Replacing the compressor" on page 119
Technical specification
Description
Compressor name: 2YC63PXD#C.
Type: inverter driven, double swing.
The compressor M1C compresses the refrigerant
in the refrigerant circuit.
Location
Piping diagram
Unit
Check procedure
Electrical check
INSIDE OF UNIT - FACTORY INSTALLED
(*) Depicted is example for com
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