64
Service
Service
Service actions
NOTE
Servicing should only be carried out by persons with the
necessary expertise.
When replacing components on the system, only genuine
replacement parts may be used.
NOTE
If an electrical connection has been disconnected and is
connected, ground must be checked using a suitable
multimeter.
Maintenance
General inspection
Check the following:
1.
Condition of casing.
2. Electrical connections.
3. Alarm log.
Correct any fault before continuing.
Climate system
Check the following:
1. Climate system start and stop temperature.
2. Heating curve settings.
3. Function of the room sensor (if installed).
4. System pressure.
5.
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Correct any fault before continuing.
Emergency mode
NOTE
Switch (SF1) must not be put into mode " " or
before the
installation is filled with water.
The compressor in the heat pump can be damaged.
Emergency mode is used in event of operational interference
and in conjunction with service. Hot water is not produced in
emergency mode.
Emergency mode is activated by setting switch (SF1) in mode
"
". This means that:
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Ŷ
The display is not lit and the control computer is not
connected.
Ŷ
Hot water is not produced.
Ŷ
The compressors are switched off. Charge pump (EB101-
GP12) is running.
Ŷ
The heating medium pump is active.
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External additional heat is active if it is connected to the
emergency mode relay (K1, terminal block X1).
Ensure that the heating medium circulates through the external
additional heat.
Temperature sensor data
Temperature
(°C)
Resistance
(kOhm)
Voltage
(VDC)
-40
351.0
3.256
-35
251.6
3.240
-30
182.5
3.218
-25
133.8
3.189
-20
99.22
3.150
-15
74.32
3.105
-10
56.20
3.047
-5
42.89
2.976
0
33.02
2.889
5
25.61
2.789
10
20.02
2.673
15
15.77
2.541
20
12.51
2.399
25
10.00
2.245
30
8.045
2.083
35
6.514
1.916
40
5.306
1.752
45
4.348
1.587
50
3.583
1.426
55
2.968
1.278
60
2.467
1.136
65
2.068
1.007
70
1.739
0.891
75
1.469
0.785
80
1.246
0.691
85
1.061
0.607
90
0.908
0.533
95
0.779
0.469
100
0.672
0.414
Summary of Contents for FDCW60VNX-W
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