Daikin Perfera RXM R Series Service Manual page 111

To perform an electrical check of the indoor unit power PCB
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
A
A Floor standing indoor unit
a Black wire
b White wire
Is the measured voltage on the indoor
unit power PCB correct?
Yes
No
3 Check the power supply to the indoor unit, see
Is the power supply to the indoor unit
correct?
Yes
No
Prerequisite: First perform a power check of the indoor unit power PCB, see
"Checking procedures" [
1 Measure the voltage between the pins 1‑4 of the connector S102.
Result: The measured voltage MUST be 324 VDC.
Action
Return to
procedures" [
power PCB and continue with the next
procedure.
Continue with the next step.
Action
Correct the wiring between the power
supply terminal of the indoor unit and
the indoor unit power PCB, see
procedures" [
See "To check the power supply to the
indoor unit"
procedures" [
4
110].
3 Components
|
b a
"Checking
4 110] of the indoor unit
"Checking procedures" [
4
115].
("Repair
4
203]) for the next steps.
4
202].
"Repair
Service manual
111