Daikin RXTA30B2V1B, Service Manual

Page: 95 / 264

4 | Components
Service manual
95
RXTM-R+RXTP-R+ARXTP-R+RXTA-B+FTXTA30B2V1B(W)
(B)+35M5V1B
R32 Optimized Heating 4 Split
ESIE21-12A – 2022.02
Any leaks found? Action
No Heat exchanger is OK. Return to the
troubleshooting of the specific error
and continue with the next step.
4.9.2 Repair procedures
To remove the indoor unit heat exchanger
Prerequisite: First perform pump down operation. Close the refrigerant circuit
stop valves when done.
Prerequisite: Recuperate the refrigerant from the refrigerant circuit, see
"5.2.2 Repair procedures" [
4
216].
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
1 Remove the required plate work, see "4.17 Plate work" [ 4 144].
2 Disconnect the wiring from the wiring terminals.
3 Remove the insulation from the liquid and gas pipes.
4 Release the flared joint of the (refrigerant) liquid pipe and the gas pipe.
Disconnect the liquid and gas pipes from the refrigerant field piping. Plug the
refrigerant field pipes to prevent dirt from entering the pipes.
5 Loosen and remove the screw between the unit and the installation plate
(mounting plate) and remove the unit from the wall.
6 Remove the switch box, see "4.17 Plate work" [ 4 144].
7 For FTXTM-R units ONLY: Remove the screw and remove the streamer unit
assembly from the indoor unit.
8 Remove the indoor unit fan motor, see "4.8.2 Repair procedures" [
4
90].
9 Remove the screws that fix the heat exchanger to the side plate.
a
B A a a b c a c
a
D a c C a b c a
A FTXTA-B units