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Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Maintenance
7
7.6 Checking the air purge valve and venting the system
Carry out the following steps:
1. Open the air purge valve (1) by turning the valve cap (2) of the air purge valve one full
turn in an anti-clockwise direction (→
4.6.2.1 Components (bi-bloc systems), p. 29
,
→
4.6.3.1 Components (mono-bloc systems), p. 52
1
2
1 Air purge valve
2 Valve cap
Air should now be heard escaping.
2. Repeat the sequence until there are no audible sounds of escaping air.
3. Close the air purge valve again by turning in a clockwise direction.
7.7 Resetting the thermostatic overload protection
The overload protection (→
4.6.2.1 Components (bi-bloc systems), p. 29
, →
) protects the system against overheating the water.
If the thermostatic overload protection is triggered due to the water temperature being too high,
carry out the following steps in order to reset it:
1. Remove the overload protection cover.
2. Using a test pin, lightly press the button (
2
) in the centre in order to reset the thermostatic
overload protection.
2
3
1
1 Overload protection
2 Button
3 Pressing
3. Resecure the cover again afterwards.