Daikin Altherma 3 M - Page 116

3 | Components
Service manual
116
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
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
"6.2Wiring diagram"[4314].
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.
For backup heater option with 1~, 230V, 3kW or 6kW backup heater:
▪ K1M: 2‑6 / 1‑5, 4‑6 / 3‑5
▪ K5M: 2‑6 / 1‑5, 4‑6 / 3‑5, 2‑14 / 1‑13
All measured voltages MUST be 230VAC ± 10%.
For backup heater option with 3~, 400V, 6kW or 9kW backup heater:
▪ K1M: 2‑4 / 1‑3, 4‑6 / 3‑5, 2‑6 / 1‑5
▪ K5M: 2‑4 / 1‑3, 4‑6 / 3‑5, 2‑6 / 1‑5
All measured voltages MUST be 400VAC ± 10%.
▪ K5M: 2‑14 / 1‑13
The measured voltage MUST be 230VAC ± 10%.
5 Activate backup heater: step 2.
6 Measure the voltage between the following terminals of the backup heater
contactors.
For backup heater option with 1~, 230V, 3kW or 6kW backup heater:
▪ K2M: 2‑6 / 1‑5, 4‑6 / 3‑5
▪ K5M: 2‑6 / 1‑5, 4‑6 / 3‑5, 2‑14 / 1‑13
▪ K2M: 1‑K5M: 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:
▪ K2M: 2‑4 / 1‑3, 4‑6 / 3‑5, 2‑6 / 1‑5
▪ K5M: 2‑4 / 1‑3, 4‑6 / 3‑5, 2‑6 / 1‑5
All measured voltages MUST be 400VAC ± 10%.
▪ K5M: 2‑14 / 1‑13
The measured voltage MUST be 230VAC ± 10%.
INFORMATION
Make sure that the wiring between the backup heater contactors is properly
connected and NOT damaged (check continuity), see "6.2Wiring diagram"[4314].