ESIE16-03B
|
Part 3. Repair
3.3. Unit specific repair procedures
22/08/16
|
Version 1.1
Page 73
SA R32 Sky-Air RZAG-L
3.3.2.3. Replacing 4-way valve body
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. Remove the main PCB (refer to
"Replacing main PCB" on page 89
).
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.
8. Cut the 4-way valve pipes (1).
9. Remove the 4-way valve (2).
10. Supply nitrogen to the piping circuit.
11. Using an oxygen acetylene torch, heat a solder connection of the 4-way valve (2).
12. When the solder material is liquid, pull the 4-way valve pipe (1).
13. Repeat steps 11 and 12 for the 3 remaining 4-way valve pipes (1).
14. Cut the nitrogen supply when the piping has cooled down.
Figure 3-11: Removing 4-way valve body
Installation
C
AUTION
The maximum applied Nitrogen pressure must not exceed 0.02 MPa.
1. 4-way valve pipe
2. 4-way valve
C
AUTION
Overheating the 4-way valve will damage or destroy it.
I
NFORMATION
Install the putty on the 4-way valve.
Replace all tie wraps that were cut during removal.
1
2
1
Содержание RZAG100L7V1B
Страница 14: ...ESIE16 03B Part 1 Introduction 1 4 How to use Page 14 22 08 16 Version 1 1 SA R32 Sky Air RZAG L ...
Страница 60: ...ESIE16 03B Part 2 Troubleshooting 2 5 Other capacity range Page 60 22 08 16 Version 1 1 SA R32 Sky Air RZAG L ...
Страница 98: ...ESIE16 03B Part 5 Appendix Page 98 22 08 16 Version 1 1 SA R32 Sky Air RZAG L ...