Daikin Comfora ATXP20~35L2V1B, Service Manual

Page: 23 / 68

2 Components
Service manual
23
ATXP20~3 FTXP20~7 ARXP20~3
RXP20~71L2V1B
Split Comfora R32
ESIE18-01 – 2019.02
a
a
a
b
c
c
c
a Nut
b Compressor
c Damper
3 Remove the caps from the compression pipe and suction pipe.
CAUTION
The oil in the compressor is hygroscopic. Therefore
remove the caps from the compressor pipes as late as
possible.
4 Wrap a wet rag around the compressor pipes and solder the
compressor pipes to the refrigerant pipes.
a b
b
a Faston connectors
c Compressor pipe
CAUTION
Overheating the compressor pipes (and the oil inside the
compressor pipes) will damage or destroy the compressor.
5 Install the putty in the correct location.
6 Connect the Faston connectors to the compressor wire
terminals U, V and W
7 Install the cover of the compressor wire terminals.
a
a Compressor wire terminals cover
8 Add refrigerant to the refrigerant circuit, see "3.2.2 Repair
procedures" on page 46 .
Is the problem solved? Action
Yes No further actions required.
No Return to the troubleshooting of
the specific error and continue
with the next procedure.
2.3 Expansion valve
2.3.1 Checking procedures
INFORMATION
It is recommended to perform the checks in the listed
order.
To perform a mechanical check of the expansion
valve
Prerequisite: Power OFF the unit for 3 minutes. Then turn ON the
unit and listen to the expansion valve assembly. If the expansion
valve does NOT make a latching sound, continue with the electrical
check of the expansion valve, see
"2.3.1 Checking procedures" on
page 23 .
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 .
1 Remove the expansion valve motor from the expansion valve
body, see
"2.3.2 Repair procedures" on page 24 .
2 Slide the magnet (tool part number 9950038) over the
expansion valve body and gently rotate the magnet clockwise/
counterclockwise to manually close/open the expansion valve
body.
Does the expansion valve
body open? Action
Yes Perform an electrical check of the
expansion valve, see
"2.3.1 Checking procedures" on
page 23
.
No Replace the expansion valve
body, see
"2.3.2 Repair
procedures" on page 24 .