Nibe F730 - Page 27

Filling the climate system
If the pressure is too low: contact your installer.
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.
Turn off the power supply to the heat pump.
2.
Vent the heat pump via the vent valves and the rest of the climate
system via its respective vent valves.
3.
Keep topping up and venting until all air has been removed and the
pressure is correct.
The climate system may require topping up after venting.
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.
Therefore hold the vent valves open at least 5 seconds.
LEK
Venting valve
Bleed valves
27Chapter 2 | The heat pump – the heart of the houseNIBE F730