very hard water) that it is not suitable for filling the heating system. If
unsure, contact your installer.
Note! Do not use any additives for water treatment in the
heating system’s water!
Note! The closed expansion tank contains an air filled bladder
that absorbs variations in the heating system’s volume. Under
no circumstances may it be drained of air.
6.4 Checking the safety valve
Both the safety valves for the heating system must be checked at least
four times a year to prevent lime deposits clogging the mechanism. See
(missing heading target) for information on where the safety valves are
located.
The safety valve of the water tank protects the enclosed heater against
over pressure in the water tank. It is mounted on the cold water inlet
line, its outlet opening facing downwards. If the safety valve is not
checked regularly, the water tank might be damaged. It is quite normal
that the safety valve lets out small amounts of water when the water
tank is being charged, especially if a lot of hot water was used previously.
Both safety valves can be checked by turning the cap a quarter of a turn
clockwise until the valve lets out some water through the overflow pipe.
If a safety valve does not work properly, it must be replaced. Contact
your installer.
The opening pressure of the safety valves is not adjustable.
6.5 In the event of leakage
In the event of leakage in the hot water pipes between the unit and water
taps, close the shut-off valve on the cold water inlet immediately. Con‐
tact your installer.
In the event of leakage in the brine circuit, turn off the heat pump and
call your installer immediately.
36 – User manual 086U6297 Rev. 6 EN
To Next Page
Loading...
Need help?
General