Checking The Pressure Relief Valve; Conducting Visual Checks On The Pcbs And Terminals; Cleaning The Strainers - Panasonic Aquarea WH-ADC0309J3E5 Planning And Installation Manual

Maintenance
7.2

Checking the pressure relief valve

Carry out the following steps:
7.3

Conducting visual checks on the PCBs and terminals

Carry out the following steps:
7.4

Cleaning the strainers

Carry out the following steps for a regular strainer:
7
196
1. Set the lever (2) of the pressure relief valve (1) located in the indoor unit or mono-bloc unit
(→ 4.6.2.1 Components (bi-bloc systems), p.
systems), p. 52) to the horizontal position (3 – open).
1
2
3
Air or fluids should now be heard escaping. If this is not the case, contact an authorised
dealer.
2. After a few seconds, set the lever of the pressure relief valve back to the home position
(closed).
1. Carry out a visual inspection of the PCBs and terminals for loose connections, damaged
cable insulation etc.
2. Repair any deficiencies and defects.
1. If mounted, close the shut-off valve before and after the strainer.
2. Open the strainer using a spanner. Remove the inserted straining element and ensure that
the meshes of the straining element are not damaged.
3. Rinse out the straining element with tap water. Remove any stubborn dirt using a soft brush.
4. Replace the straining element in the strainer and close the strainer using the spanner.
5. Open the shut-off valve again.
29, →
1 Pressure relief valve
2 Lever
3 Setting horizontal in the opening position
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
4.6.3.1 Components (mono-bloc