2
|
Components
Service manual
79
FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C
+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C
Split Sensira R32
ESIE18-12E – 2021.02
VDC
Com
Ref
VDC
Com
Ref
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
To perform a power module check
Prerequisite:
First check the rectifier voltage of the main PCB, see
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 from the main PCB.
2
Check the power module IPM1 in reference with the image and the table
below.
e
d
a
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
Summary of Contents for Sensira Series
Page 169: ......
Page 170: ......
Page 171: ......
Page 172: ...ESIE18 12E 2021 02 Copyright 2018 Daikin Verantwortung f r Energie und Umwelt...
