Draining the brine system
If, for example, the brine pump requires replacing or the
cooling module requires servicing, drain the brine system
by:
1. Close the shut-off valve (QM34) and the filterball
(QZ2) for the brine system.
2. Connect a hose to the drain valve (QM2), place the
other opening of the hose in a container and open
the valve. A small amount of brine will flow into the
container.
3. Air must enter the system in order for the remaining
brine to be able to run out. To let in air, slacken off
the connection slightly at the shut-off valve (QM34)
that joins GreenMaster-HP with the cooling module.
When the brine system is empty, the required service
can be carried out.
Helping the circulation pump to start
1. Turn off GreenMaster-HP by setting the switch (SF1)
to " ".
2. Remove the front cover
3. Remove the cover for the cooling module.
4. Loosen the venting screw (QM5) with a screwdriver.
Hold a cloth around the screwdriver blade as a small
amount of water may run out.
5. Insert a screwdriver and turn the pump motor
around.
6. Screw in the venting screw (QM5).
7. Start GreenMaster-HP by setting the switch (SF1) to
" " and check that the circulation pump is working.
It is usually easier to start the circulation pump with
GreenMaster-HP running, and with the switch (SF1) set
to " ". If the circulation pump is helped to start while
GreenMaster-HP is running, be prepared for the screw-
driver to jerk when the pump starts.
GP1
QM5
The image shows an example of what a circulation pump can look
like.
Temperature sensor data
Voltage (VDC)
Resistance
(kOhm)
Temperature
(°C)
3.256
351.0
-40
3.240
251.6
-35
3.218
182.5
-30
3.189
133.8
-25
3.150
99.22
-20
3.105
74.32
-15
3.047
56.20
-10
2.976
42.89
-5
2.889
33.02
0
2.789
25.61
5
2.673
20.02
10
2.541
15.77
15
2.399
12.51
20
2.245
10.00
25
2.083
8.045
30
1.916
6.514
35
1.752
5.306
40
1.587
4.348
45
1.426
3.583
50
1.278
2.968
55
1.136
2.467
60
1.007
2.068
65
0.891
1.739
70
0.785
1.469
75
0.691
1.246
80
0.607
1.061
85
0.533
0.908
90
0.469
0.779
95
0.414
0.672
100
GreenMaster-HP
Chapter 8 |
Service and maintenance
42
