Venting the climate system
In event of repeated filling of the climate system or if bubbling sounds are
heard from the heat pump the system may need venting. This is carried out
as follows:
1.
Set the switch in mode and wait approx. 30 seconds.
2.
Turn off the power supply to the heat pump.
3.
Vent the heat pump via the vent valves and the rest of the climate system
via the relevant vent valves.
4.
Keep topping up and venting until all air has been removed and the
pressure is correct.
NOTE
The vent hoses from the container must be drained of water before air can
be released. This means that the system is not necessarily vented despite the
flow of water when the vent valves are opened.
NIBE™ F750Chapter 2 | The heat pump – the heart of the house26