Checking The Air Purge Valve And Venting The System; Resetting The Thermostatic Overload Protection - Panasonic Aquarea WH-ADC0309J3E5 Planning And Installation Manual

Maintenance
7.6

Checking the air purge valve and venting the system

Carry out the following steps:
7.7

Resetting the thermostatic overload protection

The overload protection (→
(mono-bloc systems), p.
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:
7
198
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 (→
→ 4.6.3.1 Components (mono-bloc systems), p.
1
2
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.
4.6.2.1 Components (bi-bloc systems), p.
52) protects the system against overheating the water.
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.
3
1
2
3. Resecure the cover again afterwards.
4.6.2.1 Components (bi-bloc systems), p.
1 Air purge valve
2 Valve cap
1 Overload protection
2 Button
3 Pressing
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
52).
29, →
4.6.3.1 Components
29,