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Checking the Brine Level of the Brine System
The Brine system must be filled with the correct volume of brine. Otherwise the heat pump
unit risks being damaged.
Brine system liquid (brine) must be added if the brine level gets so low that it is no longer visible in the expansion
vessel.
Level is too low
first month of operation the brine level might sink a little, which is quite normal. The brine level
vary a bit, depending on the temperature of the heat source. Under no circumstances, however, shall
level be allowed to sink so much that it is no longer visible in the expansion vessel.
installation contractor for refilling of Brine system liquid.
Checking the Water Level of the Heating System
The pressure of the heating system should be checked once monthly. The pressure, shown on the external pressure
gauge, should be 1-1,5 bar. If the value is below 0.8 bar with cold water in the heating system, more water must be
added (applies to a closed expansion vessel). To find out where the pressure gauge is located.
You can use ordinary tap water for filling the heating system. In some rare cases the water quality would be
unsuitable for this purpose (corrosive or calcareous water). In case of doubt, we would recommend that you call
your installation contractor.
Don't use any water treatment additives for the heating system!
Checking the Safety Valves
Both safety valves of the heating system should be checked at least four times a year to prevent lime deposits to
clog the mechanism. To find out where the safety valves are located.
The safety valve of the water heater protects the closed heater against positive pressure. It is fitted on the cold
water inlet line, its outlet opening facing down- wards. If the safety valve is not checked regularly, the water heater
might be damaged. It is quite normal that the safety valve lets out small amounts of water when the water heater is
being charged, especially if a lot of warm water was used previously.
To check the safety valves, give 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. Check with your installation contractor.
The opening pressure of the safety valve is not adjustable.
In the Event of Leakage
In the event of leakage in the warm water lines between unit and water taps, the shut-off valve on the cold water
inlet line should be closed immediately.
Call your installation contractor . In the event of leakage in the system circuit, turn off the heat pump and
call your installation contractor immediately.
Control
Regular Checks
Level is correct
38
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