Daikin Comfora ATXP20~35L2V1B, Service Manual

Page: 19 / 68

2 Components
Service manual
19
ATXP20~3 FTXP20~7 ARXP20~3
RXP20~71L2V1B
Split Comfora R32
ESIE18-01 – 2019.02
a a
b b
c c
a Magnet attracted
b Magnet attracted
c Magnet NOT attracted
Magnet is attracted in the
correct positions of the 4‑way
valve? Action
Yes The 4‑way valve is OK. Return to
the troubleshooting of the
specific error and continue with
the next procedure.
No Replace the 4‑way valve body,
see
"2.1.2 Repair procedures" on
page 19 .
2.1.2 Repair procedures
To remove the 4-way valve coil
Prerequisite: Turn OFF the unit via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.10 Plate
work" on page 35 .
Prerequisite: If needed, remove any parts to create more space for
the removal of the 4‑way valve coil.
1 Remove the screw and remove the 4‑way valve coil from the
4‑way valve body.
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 Disconnect the 4‑way valve coil connector from the main PCB.
4 To install the 4‑way valve coil, see "2.1.2 Repair procedures" on
page 19 .
To remove the 4-way valve body
Prerequisite: Recuperate the refrigerant from the refrigerant circuit,
see "3.2.2 Repair procedures" on page 46 .
1 Remove the 4‑way valve coil from the 4‑way valve body, see
"2.1.2 Repair procedures" on page 19 .
2 Cut the 4‑way valve pipes using a pipe cutter.
c d a b a
a 4‑way valve pipe
b 4‑way valve
c Putty
d Insulation
3 Remove the 4‑way valve.
4 Keep the putty and the insulation for re-use.
5 To install the 4‑way valve body, see "2.1.2 Repair
procedures" on page 19 .
To install the 4-way valve body
1 Install the 4‑way valve in the correct location.
2 Wrap a wet rag around the 4‑way valve and solder the 4‑way
valve pipes to the 4‑way valve.
CAUTION
Overheating the valve will damage or destroy it.