Checking The Water Level In The Heating System; Checking Safety Valves - Danfoss DHP-S Eco User Manual

See the installation instructions when filling brine.
Figure 4.
system
3.3

Checking the water level in the heating system

The line pressure of the installation must be checked once a month. Ensure
that heating system has the necessary pressure, however, not above max-
imum pressure of 6 bar.
You can use normal tap water when topping up the heating system. In
certain exceptional cases the water quality may be so poor (for example
very hard water) that it is not suitable for filling the heating system. If
unsure, contact your installer.
Do not use any additives for water treatment in the heating system's water!
3.4

Checking safety valves

Both the safety valves for the heating system must be checked at least
four times a year to prevent lime deposits clogging the mechanism.
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
1
2
Filling the brine
Symbol explanation
1 Used when filling
2 Connected to brine circuit
User manual VUIFM102 – 15