Pipe connections
13
FIGHTER 1330
Air is initially released from the hot water and venting
may be necessary. If bubbling sounds can be heard
from the heat pump, the entire system requires further
venting. When the system has stabilised (correct pres-
sure and all the air removed) the heating controls can
be set at the required value.
Check that all air is removed from the collector sys-
tem by opening the venting valves. The pressure in
the brine circuit is checked with the help of pressure
gauges. Filling of collector system is done by pumping
ready mixed brine through the filling valve.
Venting and filling are repeated until all the air has
been removed and the correct pressure (0.5 - 3 bar)
has been obtained.
Readjusting, brine side (77)
Internal venting valves
Readjusting,
heating medium side (75)
75
77
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