ESIE15-08B
|
Part 3. Repair
2. Unit specific repair procedures Monobloc CA
Page 130
19/07/16
Daikin Altherma Monobloc CA
Installation
1.
Wrap a wet rag around the high pressure switch (2).
2.
Proceed in reverse order.
2.2.11. Replacing the pressure sensor S1NPH
2.2.11.1 Preliminary actions
1.
Switch off the Daikin Altherma Monobloc CA via the user interface.
2.
Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker.
3.
Recover the refrigerant, refer to
"Refrigerant recovery" on page 106
4.
Remove the switch box, refer to
"Replacing the switch box" on page 117
.
5.
Remove the compressor sound insulation, refer to
"Removing the compressor sound insulation" on page 114
.
6.
Connect a nitrogen hose to the outdoor suction service port.
7.
Attach a hose with core-depressor to allow the release of the nitrogen.
2.2.11.2 Procedure
Removal
1.
Cut the tie wrap that fixes the pressure sensor S1NPH cable (1).
2.
Using a pipe cutter, cut the pressure sensor S1NPH pipe (3).
3.
Remove the pressure sensor S1NPH (2).
4.
Supply nitrogen to the piping circuit.
5.
Heat the pressure sensor S1NPH pipe (3) using an oxygen acetylene torch.
6.
When the solder is liquid, pull the pressure sensor S1NPH pipe (3).
7.
Cut the nitrogen supply when the piping has cooled down.
W
ARNING
Overheating the high pressure switch will damage or destroy it.
C
AUTION
The maximum applied Nitrogen pressure must not exceed 0.02 MPa.