ESIE16-03B | Part 3. Repair 3.3. Unit specific repair procedures
Page 86 22/08/16 | Version 1.1
SA R32 Sky-Air RZAG-L
3.3.2.13. Replacing high pressure switches
Removal
1. Switch off the Daikin unit via the user interface.
2. Switch off the Daikin unit with the field supplied circuit breaker.
3. Remove plate work when required (refer to "Basic removal" on page 67).
4. Recover the refrigerant (refer to "Refrigerant repair procedures" on page 61).
5. Connect a nitrogen hose to the outdoor suction service port.
6. Attach a hose with core-depressor to allow the release of the nitrogen.
7. Unplug the high pressure switch connector (3).
8. Cut the tie wrap (4).
9. Cut the high pressure switch S1PH pipe (5).
10. Remove the high pressure switch (1 or 2).
11. Supply nitrogen to the piping circuit.
12. Heat the pressure switch pipe (5) using an oxygen acetylene torch.
13. When the solder is liquid, pull the pressure sensor pipe (5).
14. Cut the nitrogen supply when the piping has cooled down.
Figure 3-22: Removing high pressure switches
Installation
CAUTION
The maximum applied Nitrogen pressure must not exceed 0.02 MPa.
1. Resettable high pressure switch 4. Tie wrap
2. High pressure switch 5. High pressure switch pipe
3. High pressure switch connector
CAUTION
Overheating the high pressure sensor will damage or destroy it.
To Next Page
Loading...
