Repair Procedures - Daikin Altherma 3 H HT ECH2O Service Manual

4 | Components

4.6.2 Repair procedures

To remove the compressor insulation
Service manual
166
a
a Faston connector
4 Set the Megger voltage to 500 V DC or 1000 V DC.
5 Measure the insulation resistance between the following terminals. The
measured insulation resistance MUST be >3 MΩ.
▪ U–ground,
▪ V–ground,
▪ W–ground.
Compressor insulation measurements
are correct?
Yes
No
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Remove the 4 bolts and remove the lower cover from the compressor
compartment.
e d b c b b
h
f
h
a
a
a
Action
Compressor is OK. Return to
troubleshooting of the specific error
and continue with the next procedure.
Replace the compressor, see
"4.6.2 Repair
g
h
4
procedures" [
4
"4.19 Plate work" [
g
h
i
h
h
EPRA14~18D + ETSH/X(B)16P30+50E
Daikin Altherma 3 H HT ECH₂O
ESIE22-11A – 2023.06
166].
287].