Indoor Unit Power Pcb; Checking Procedures - Daikin RXM20R Service Manual

4 | Components

4.10 Indoor unit power PCB

4.10.1 Checking procedures

To perform a power check of the indoor unit power PCB
Service manual
112
Is the problem solved?
Yes
No
INFORMATION
It is recommended to perform the checks in the listed order.
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Turn ON the power of the unit.
2 Measure the voltage between the black and white wires of connector S101 on
the indoor unit power PCB.
Result: The measured voltage MUST be 230 V AC.
A
a b
A Wall mounted indoor unit
a Black wire
b White wire
Action
No further actions required.
Return to "4.9.1 Checking
4
procedures" [ 106] of the indoor unit
main PCB and continue with the next
procedure.
"4.14 Plate work" [
RXM20~71R(9) + ARXM25~71R(9) + FTXM20~71R + ATXM25~50R +
4
153].
FVXM25~50A
Split New Perfera R32
ESIE20-11B – 2022.02