4
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Components
Service manual
117
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
a
a
Backup heater contactor K1M
2
Measure the backup heater resistance between K1M/1 and K1M/3.
Result:
The measured resistance MUST be approximately 18 Ω.
INFORMATION
281] for more detailed information.
INFORMATION
Make sure that the wiring between the backup heater contactors and the backup
heater connector is properly connected and NOT damaged (check continuity), see
281].
Is the measured backup heater
resistance correct?
Action
Yes
Return to
116] of the backup
heater and continue with the next
procedure.
No
Replace the backup heater, see
120].
To perform an insulation check of the backup heater
Prerequisite:
First perform a resistance check of the backup heater, see
116].
1
Open all circuit breakers.
CAUTION
To prevent damage to the unit, all circuit breakers MUST be opened before using a
Megger.
2
Set the Megger voltage to 500 V AC.
3
Connect the Megger ground test lead directly to the backup heater ground
wire.
draft – 31/05/2022 15:53
Summary of Contents for EBLA04E V Series
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