Daikin EBLA04E V Series, Service Manual, Page: 128 / 324

4 | Components
Service manual
128
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
a
a
a
a Backup heater contactor
For backup heater option with 1~, 230 V, 3 kW or 6 kW backup heater:
▪ K5M: 2‑6, 4‑6, 2‑14
All measured voltages MUST be 230 V AC ± 10%.
For backup heater option with 3~, 400 V, 6 kW or 9 kW backup heater:
▪ K5M: 2‑4, 4‑6, 2‑6
All measured voltages MUST be 400 V AC ± 10%.
▪
K5M: 2‑14
The measured voltage MUST be 230 V AC ± 10%.
Is the measured power supply voltage
correct? Action
Yes Skip the next step.
No Continue with the next step.
2 Check the power supply (source) of the backup heater.
Is the power supply (source) of the
backup heater correct? Action
Yes Correct the wiring and/or components
between the power supply (source) and
the backup heater contactor K5M, see
"7.2 Wiring diagram" [ 4 281].
No Adjust the power supply (source) of the
backup heater.
3 With the Actuator test run still active, activate backup heater: step 1.
4 Measure the voltage between the following terminals of the backup heater
contactors.
draft – 31/05/2022 15:53