![background image](http://html1.mh-extra.com/html/daikin/ebla04e-v-series/ebla04e-v-series_service-manual_4704429109.webp)
4
|
Components
Service manual
109
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
Is the 4‑way valve coil firmly fixed and
not visually damaged?
Action
Yes
Perform an electrical check of the 4‑way
valve, see
108].
No
Fix or replace the 4‑way valve coil, see
To perform an electrical check of the 4-way valve
1
First perform a mechanical check of the 4-way valve, see
108].
2
Unplug the 4-way valve connector from the appropriate PCB.
3
Measure the resistance of the 4-way valve coil between the pins of the 4-way
valve connector.
Result:
The measured value must be 585 Ω ± 10%.
Is the measured value correct?
Action
Yes
Continue with the next step.
No
Replace the 4‑way valve coil, see
When outdoor unit is combined with H Cooling indoor unit
▪
WHEN OUTDOOR TEMPERATURE IS MILD AND UNIT CAN SWITCH BETWEEN
HEATING AND COOLING
INFORMATION
This procedure is ONLY possible when the outdoor temperature is within the
temperature range for both
Heating
and
Cooling
operation mode. See the
databook on Business Portal for the temperature range of the operation modes.
1
Connect the 4‑way valve connector to the appropriate PCB.
2
Turn ON the power using the respective circuit breaker.
3
Activate
Cooling
operation via the user interface.
4
With the 4‑way valve connector connected to the PCB, measure the voltage
on the 4‑way valve connection of the PCB.
Result:
The measured voltage MUST be 12 V DC.
INFORMATION
Actual energize voltage is ±310 V DC.12 V DC is used to keep the coil energized.
5
De-activate
Cooling
and activate
Heating
operation via the user interface.
6
Measure the voltage on the 4‑way valve connection on the PCB.
Result:
The measured voltage MUST be 0 V DC.
Are the measured voltages correct?
Action
Yes
Perform a position check of the 4-way
valve, see
108].
No
Perform a check the main PCB, see
draft – 31/05/2022 15:53
Summary of Contents for EBLA04E V Series
Page 322: ...14 14...
Page 323: ......