Nibe F1255 Installation Manual page 60

It is usually easier to start the circulation pump with
F1255 running, and with the switch (SF1) set to "". If the
circulation pump is helped to start while F1255 is run-
ning, be prepared for the screwdriver to jerk when the
pump starts.
GP1
The image shows an example of what a circulation pump can look
like.
TEMPERATURE SENSOR DATA
Temperature (°C) Resistance
(kOhm)
-40 351.0
-35 251.6
-30 182.5
-25 133.8
-20 99.22
-15 74.32
-10 56.20
-5 42.89
0 33.02
5 25.61
10 20.02
15 15.77
20 12.51
25 10.00
30 8.045
35 6.514
40 5.306
45 4.348
50 3.583
55 2.968
60 2.467
65 2.068
70 1.739
75 1.469
80 1.246
85 1.061
90 0.908
95 0.779
100 0.672
60 Chapter 9 | Service
QM5
Voltage (VDC)
3.256
3.240
3.218
3.189
3.150
3.105
3.047
2.976
2.889
2.789
2.673
2.541
2.399
2.245
2.083
1.916
1.752
1.587
1.426
1.278
1.136
1.007
0.891
0.785
0.691
0.607
0.533
0.469
0.414
PULLING OUT THE COOLING MODULE
The cooling module can be pulled out for service and
transport.
NOTE
Switch off the heat pump and cut the power
with the safety switch.
Caution
Remove the front cover according to the de-
scription on page
1. Close the shut-off valves (QM31), (QM32), (QM33)
and (QM34).
Drain the compressor module according to the in-
structions on page 58
F1255
2. Pull off the lock catches.
3. Disconnect the pipe connection under the shut-off
valve (QM31).
QM31
3
Remove the two screws.
4.
5. Remove the connection from the base card (AA2)
using a screwdriver.
F1255
9.
QM31 QM33
QM34 QM32
2
4
NIBE F1255