Commissioning and adjusting
FIGHTER 1140
32
AV Shut-off
SÄV Safety valve
PF Particle filter
BK Rock collector
JK Ground collector
NK Level vessel
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.
Preparations
Fill the heating medium system with water to the
required pressure and vent the system.
Filling the
heating medium system
When filling the collector 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 collector system for leakage.
2. Connect the filling pump and return line on the col-
lector 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
Internal air vent valve, brine
77
Closes
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