Daikin FTXJ-M - Replacing 4-Way Valve Body

ESIE16-02K | Part 3. Repair 3.3. Unit specific repair procedures
Page 74 31/05/21 | Version 1.1
RA R32 Split & multi split M-Series
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 61.
4. Remove plate work when required (refer to "Basic removal" on page 69).
PROCEDURE
Removal
1. Remove any parts that block the way to the 4-way valve.
2. Cut the 4-way valve pipes (2).
3. Remove the 4-way valve (5).
4. Recuperate the putty (3).
5. Recuperate the insulation (4).
Figure 3-12: Removing the 4-way valve
Installation
1. Wrap a wet rag around the 4-way valve (5).
INFORMATION
Follow local regulations and Daikin refrigerant repair procedures during the repair of your unit, refer to "Refriger-
ant repair procedures" on page 61.
CAUTION
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
WARNING
Overheating the 4-way valve will damage or destroy it.
34 2 5 2
4 1