Commissioning and adjusting24
FIGHTER 1240
The heating medium system is filled with water until
the required pressure is reached and then vented.
Before starting up the system, check that the heating,
collector and hot water circuits are full and thoroughly
vented. Check the pipe system for leakage.
Filling the
heating medium system
Internal air vent valve, brine
Preparations
AVT Draining
SÄV Safety valve
KV Cold water
NK Level vessel
SF Particle filter
BK Rock collector
JK Soil collector
VV Hot water
When filling the brine system mix the water with
antifreeze in an open container. The mixture should
be protected against freezing down to about -15 °C.
The brine is filled by connecting a filling pump.
1. Check the brine system for leakage.
2. Connect the filling pump and return line on the
brine's system's service connections as shown in
figure.
3. Close the valve under the level vessel.
4. Close the valve between the service connections.
5. Open the valves on the service connections.
6. Start the filling pump, and fill until there is fluid in
the return pipe.
7. Turn the heat pump's switch (8) to 1.
8. Select Service in menu 8.1.1.
9. Select On in menu 9.2.4.
10. Select On in menu 9.2.12. The filling pump and
the heat pump's brine pump are now operational.
The fluid should circulate via the mixing container
until it emerges from the return hose without being
mixed with air.
11. Select Off in menu 9.2.12.
12. Stop the filling pump and clean the particle filter.
13. Start the filling pump, open the valve between the
service connections.
14. Close the valve on the service connection's return
line. Now pressurise the system (to max 3 bar)
with the filling pump.
15. Close the valve on the service connection closest
to the level vessel.
16. Stop the filling pump.
17. Fill the level vessel with liquid up to around 2/3.
18. Open the valve below the level vessel.
19. Select Off in menu 9.2.4.
20. Select the auto operating mode using the
operating mode button.
Filling and venting the collector system
77
Heating
flow
Heating
return
Brine (KB) in
Brine (KB) out
Closes
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