4
|
Components
Service manual
215
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
Is the measured v5 V DC?
Then
Yes
Correct the wiring between the hydro
PCB and the refrigerant pressure sensor
connector, see
281].
No
Perform a check of the hydro PCB, see
175].
4.18.2 Repair procedures
To remove the refrigerant pressure sensor
Prerequisite:
Stop the unit operation via the user interface.
Prerequisite:
Turn OFF the respective circuit breaker.
Prerequisite:
Remove the required plate work, see
Prerequisite:
Perform a Pump down procedure. See the installer reference guide
for the correct procedure.
Prerequisite:
If needed, remove any parts or insulation to create more space for
the removal.
1
Cut all tie straps that fix the refrigerant pressure sensor harness.
2
Disconnect the refrigerant pressure sensor connector from the connector X6Y.
3
Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
4
Wrap a wet rag around the components near the refrigerant pressure sensor.
Heat the brazing point of the refrigerant pressure sensor pipe using an oxygen
acetylene torch and remove the refrigerant pressure sensor pipe from the
refrigerant pipe using pliers.
b
a
a
Refrigerant pressure sensor
b
Refrigerant pressure sensor pipe
5
Stop the nitrogen supply when the piping has cooled down.
6
Remove the refrigerant pressure sensor.
INFORMATION
It is ALSO possible to cut the component pipe(s) using a pipe cutter. Make sure to
remove the remaining component pipe end(s) from the refrigerant pipes by heating
the brazing point(s) of the component pipe(s) using an oxygen acetylene torch.
draft – 31/05/2022 15:53
Summary of Contents for EBLA04E V Series
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