Service actions
NOTE
Servicing should only be carried out by persons
with the necessary expertise.
When replacing components on S2125 only replace-
ment parts from NIBE may be used.
DRAINING THE CONDENSER
In the event of a prolonged power failure or similar, for ex-
ample, the condenser in S2125 may need to be drained of
water.
NOTE
There may be some hot water when draining the
heating medium side/climate system. There is a
risk of scalding.
1.
Close the shut-off valves.
2. Release the pressure using the vent valve (QM20) on
the automatic gas separator (HQ8).
3. Release the clip and pull out the non-return valve
(RM1.2) on the heating medium connection, return (to
S2125) (XL2).
TEMPERATURE SENSOR DATA
Return line (BT3), condenser supply (BT12),
liquid line (BT15)
Voltage (VDC)
Resistance (kOhm)
Temperature (°C)
3.047
56.20
-10
2.889
33.02
0
2.673
20.02
10
2.399
12.51
20
2.083
8.045
30
1.752
5.306
40
1.426
3.583
50
1.136
2.467
60
0.891
1.739
70
0.691
1.246
80
Discharge sensor (BT14)
Voltage (V)
Resistance (kOhm)
Temperature (°C)
4.81
118.7
40
4.77
96.13
45
4.72
78.30
50
4.66
64.11
55
4.59
52.76
60
4.51
43.64
65
4.43
36.26
70
4.33
30.27
75
4.22
25.38
80
4.10
21.37
85
3.97
18.07
90
3.83
15.33
95
3.68
13.06
100
3.52
11.17
105
3.36
9.59
110
3.19
8.26
115
3.01
7.13
120
Evaporator sensor (BT16), ambient sensor
(BT28), suction gas sensor (BT17) and suction
gas, evaporator (BT84)
Voltage (VDC)
Resistance (kOhm)
Temperature (°C)
4.51
43.34
-40
4.21
25.17
-30
3.82
15.13
-20
3.33
9.392
-10
2.80
6.000
0
2.28
3.935
10
1.80
2.644
20
1.39
1.817
30
1.07
1.274
40
37
Chapter 8 | Service
NIBE S2125
Service
Summary of Contents for S2125
Page 1: ...Installer manual Air water heat pump NIBE S2125 IHB EN 2212 1 631663 ...
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