Nibe VVM 500 - 6 Commissioning and Adjusting Preparations; Filling and Venting

Preparations
1.
Check that the switch (SF1) is in position " ".
2.
Check that the drain valve is fully closed and that
the temperature limiter (FQ10) has not deployed.
3.
Compatible NIBE air/water heat pump must be
equipped with a control board that, as a minimum,
has the software version as listed on page 18. The
control board version is shown in the heat pump’s
display at 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 vent valves (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 exiting the vent valves (QM20) is
not mixed with air, close the vent valves. After a
while the pressure rises on the externally mounted
pressure gauge. When the opening pressure for the
externally 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 500 falls to the normal working
range (approx. 1 bar) and check that there is no air
in the system by turning the vent valves (QM20).
VENTING THE CLIMATE SYSTEM
1.
Turn off the power supply to VVM 500.
2.
Vent VVM 500 through the vent valves (QM20) and
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.
APH
VVM 500
Bleed valves
Tapping valve
DRAINING THE CLIMATE SYSTEM
Also see section "Draining the climate system".
NIBE VVM 500Chapter 6 | Commissioning and adjusting34
6 Commissioning and adjusting