ESIE17-19C
|
Part 3. Repair
3.3. Unit specific repair procedures
19/08/19
|
Version 1.1
Page 81
Optimized Heating 4
3.3.2.3. Replacing 4-way valve body
PRELIMINARY ACTIONS
1. Switch off the Daikin unit via the user interface.
2. Switch off the Daikin unit with the field supplied circuit breaker.
3. Recover the refrigerant, refer to
"Recovery procedure" on page 65
.
4. Remove plate work when required (refer to
PROCEDURE
Removal
1. Remove any parts that block the way to the 4-way valve.
2. Cut the 4-way valve pipes (
).
3. Remove the 4-way valve (
).
4. Recuperate the putty (
5. Recuperate the insulation (
Figure 3-16: Removing the 4-way valve
Installation
1. Wrap a wet rag around the 4-way valve (
).
I
NFORMATION
Follow local regulations and Daikin refrigerant repair procedures during the repair of your unit, refer to
ant repair procedures" on page 65
.
C
AUTION
The maximum applied Nitrogen pressure must not exceed 0.02 MPa.
1. Tie wrap
4. Insulation
2. 4-way valve pipe
5. 4-way valve
3. Putty
W
ARNING
Overheating the 4-way valve will damage or destroy it.
3
4
2
5
2
4
1
