4
|
Components
Service manual
97
RXTM-R+RXTP-R+ARXTP-R+RXTA-B+FTXTA30B2V1B(W)
(B)+35M5V1B
R32 Optimized Heating 4 Split
ESIE21-12A – 2022.02
10
Perform a pressure test on the piping of the indoor unit and vacuüm. Open
the stop valves when done.
11
Add
refrigerant
to
the
refrigerant
circuit,
see
216].
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.
4.10 Indoor unit main PCB
4.10.1 Checking procedures
INFORMATION
It is recommended to perform the checks in the listed order.
To perform a power check of the indoor unit main PCB
FTXTP-M and ATXTP-M units
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 on the PCB. The
measured voltage MUST be 230 V AC.
a
b
a
Black wire
b
White wire
Is the measured voltage on the indoor
unit PCB correct?
Action
Yes
Return to
PCB and continue with the next
procedure.
No
Continue with the next step.
Summary of Contents for RXTA30B2V1B
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