Preparations
1.
Check that the switch (SF1) is in position "
".
2.
Check that the drain valve is fully closed and that
the temperature limiter (FD1) has not deployed.
3.
Compatible NIBE air/water heat pumps must be
equipped with a control card with display that has
at least the software version given in the list on
page 13. The control card version is displayed in
the heat pump's display upon start-up.
Filling and venting
Filling the hot water coil
1.
Open a hot water tap in the house.
2.
Open the externally mounted shut-off valve. This
valve should then be fully open during operations.
3.
When water comes out of the hot water tap, the
hot water coil is full and the tap can be closed.
Filling the climate system
1.
Open the venting valve (QM20).
2.
Open the externally mounted filler valve. The boiler
section and the rest of the climate system are filled
with water.
3.
When the water that exits the vent valve (QM20)
is not mixed with air, close the vent valves. After a
while the pressure rises on the externally mounted
pressure gauge. When the pressure for the extern-
ally mounted safety valve has been reached, it
starts to release water. Close the filler valve.
4.
Open the externally mounted safety valve until the
pressure in VVM 310 falls to the normal working
range (approx. 1 bar) and check that there is not
air in the system by turning the vent valves (QM20).
Venting the climate system
1.
Turn off the power supply to VVM 310.
2.
Vent VVM 310 through the vent valve (QM20) and
the other climate systems through their relevant
vent valves.
3.
Keep topping up and venting until all air has been
removed and the pressure is correct.
VVM 310
Venting valve (QM20)
Drain valve (QM1)
FD1
FA1
SF1
29Chapter 6 | Commissioning and adjustingNIBE™ VVM 310
6 Commissioning and adjusting
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