4
|
Components
Service manual
190
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
a
d
b
c
a
b
c
a
b
c
d
d
a
V DC out (+)
b
V AC in
c
V AC in
d
V DC out (–)
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
d
b
0.51~0.52 V
b
d
O.L
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
5
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
Confirm the rectifier voltage is below 10 V DC before proceeding, see
254].
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.
draft – 31/05/2022 15:53
Summary of Contents for EBLA04E V Series
Page 322: ...14 14...
Page 323: ......