Specifications

Control39
Regular Checks
Checking the Safety Valves
Both safety valves of the heating system should be checked at least four times a year to pr event lime deposits to
clog the mechanism. T o find out wher e the safety valves ar e located .
The safety valve of the water heater protects the closed heater against positive pr essur e. It is fitted on the cold
water inlet line, its outlet opening facing down - war ds. If the safety valve is not checked r egularly , 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 char ged, especially if a lot of warm water was used pr eviously .
T o check the safety valves, give the cap a quar ter of a turn clockwise until the valve lets out some water thr ough
the overflow pipe.
If a safety valve does not work pr operly , it must be r eplaced. Check with your installation contractor .
The opening pr essur e of the safety valve is not adjustable.
In the Event of Lea
kage
In the event of leakage in the warm water lines between unit and water taps, the shut-of f valve on the cold water
inlet line should be closed immediately .
Call your installation contractor . In the event of leakage in the system cir cuit, turn of f the heat pump and
call your installation contractor immediately .