Daikin FTXA20AW - Page 44

2 | Components
Service manual
44
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
c a b
a Screw
b 4‑way valve coil
c 4‑way valve body
2 Cut all tie straps that fix the 4‑way valve coil harness.
3 Unplug the 4-way valve connector from the appropriate PCB.
4 To install the 4‑way valve coil, see "2.1.2Repair procedures"[443].
To remove the 4-way valve body
Prerequisite: Recuperate the refrigerant from the refrigerant circuit, see
"3.2.2Repair procedures"[4162].
1 Remove the 4‑way valve coil from the 4‑way valve body, see "2.1.2 Repair
procedures"[443].
2 Remove and keep the putty (if installed) and the insulation (if installed) for re-
use.
3 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02MPa.
4 Wrap a wet rag around the components near the 4‑way valve pipes. Heat the
brazing points of the 4‑way valve pipes using an oxygen acetylene torch and
remove the 4‑way valve pipes from the refrigerant pipes using pliers.
cd a b a
a 4‑way valve pipe
b 4‑way valve
c Putty
d Insulation
5 Stop the nitrogen supply when the piping has cooled down.
6 Remove the 4‑way valve.