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ESIE17-08
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Part 3. Repair
3.3. Unit specific repair procedures
Page 84
15/11/18
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Version 1.1
R32 Sky-Air RZAG-M
PROCEDURE
Removal
1. Cut the 2 expansion valve pipes (1).
2. Remove the expansion valve (2).
3. Supply nitrogen to the piping circuit.
4. Using an oxygen acetylene torch, heat the 2 expansion valve pipes (1).
5. When the solder material is liquid, pull the 2 expansion valve pipes (1).
6. Cut the nitrogen supply when the piping has cooled down.
Figure 3-18: Removing expansion valve
Installation
1. Wrap a wet rag around the expansion valve Y1E (3).
2. Proceed in reverse order.
C
AUTION
The maximum applied Nitrogen pressure must not exceed 0.02 MPa.
1. Expansion valve pipe
2. Expansion valve
W
ARNING
Overheating the expansion valve Y1E will damage or destroy it.
2
1