Pipe connections
FIGHTER 1330
12
B
A
A B I II
50.0 C
Varmvattentemperatur
13.43
1.0
A B
BK / JK
KBP
VBP-B
VVR
VVF
VBFB
VBRA/VBRB
KBut
KB-in
VBFA
AV
VBP-A
SF
EXP
P
The heating medium system is filled with water until
the required pressure is reached and then vented.
Filling the
heating medium system
To fill the collector system, mix antifreeze with water in
an open container which connect with filling pump and
hoses as illustrated. The brine should be protected
from freezing down till -15 °C.
■ The valve on the main pipe between service con-
nections is closed.
■ To fill, start the pump in the filling vessel and allow it
to run until the fluid comes back in the return hose.
■ The fluid can circulate via the mixing vessel until
fluid, without air, returns to the return hose.
■ Stop the filling pump and clean the particle filter.
Start the filling pump again.
■ Open the valve on the main pipe between the serv-
ice branches while the filling pump is still opera-
tional (to release the air between the branches).
■ Close the valve on the return hose.
■ Pressurise the system (to max 3 bar) with the filling
pump.
■ Close the filling valve and stop the filling pump.
AV Shutoff valve
BK Rock collector
EXP Level vessel
JK Soil collector
KB-in Brine in
KB-out Brine out
KBP Brine pump
SF Particle filter
Filling and venting the collec-
tor system
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