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Components
Service manual
137
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
VDC
Com
Ref
VDC
Com
Ref
b
a
0.51~0.52 V
a
b
O.L
d
c
0.51~0.52 V
c
d
O.L
c
a
0.51~0.52 V
a
c
O.L
4
If the diode module is NOT OK, replace the main PCB, see
138].
To perform a power module check
Prerequisite:
First check the rectifier voltage of the main PCB, see
132].
Prerequisite:
Stop the unit operation via the user interface.
1
Turn OFF the respective circuit breaker.
DANGER: RISK OF ELECTROCUTION
Wait for at least 10 minutes after the circuit breaker has been turned OFF, to be sure
the rectifier voltage is below 10 V DC before proceeding.
Power module IPM1 for compressor
1
Disconnect the compressor connector.
2
Check the power module IPM1 in reference with the image and the table
below.
a
e
d
b
c
a
U
b
V
c
W
d
DC+
e
DC–
INFORMATION
When measuring on the front of the main PCB, make sure to locally remove the
protective varnish with the test leads of the multi meter.
VDC
Com
Ref
VDC
Com
Ref
U
DC+
0.501 V
DC+
U
O.L
V
DC+
0.501 V
DC+
V
O.L
W
DC+
0.501 V
DC+
W
O.L
DC–
U
0.501 V
U
DC–
O.L
Содержание Perfera ARXM R Series
Страница 1: ...Service manual Split New Perfera R32 RXM20 71R ARXM25 71R FTXM20 71R ATXM25 50R FVXM25 50A...
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Страница 256: ...ESIE20 11 2021 01 Copyright 2021 Daikin Verantwortung f r Energie und Umwelt...