Commissioning and adjusting
For the Installer
20
FIGHTER 1210
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
pressure and all the air removed) the heating controls
can be set at the required value.
Check the fluid level in the level vessel (85). If the lev-
el has dropped, close the valve under the vessel. You
can then fill through the connection at the top of the
vessel. After filling, open the valve again.
To raise the pressure, close the valve on the incoming
main pipe when the brine pump (KBP) is running and
the level vessel (NK) is open, so that water is drawn in
from the vessel.
The siphon principle is used to empty the water
heater. This can be done either via the drain valve on
the incoming cold water pipe or by inserting a hose
into the cold water connection.
Readjustment, brine side
Emptying the water heater
■ Set the switch to 1.
■ Check the settings on the control computer, and
adjust so there is a heating requirement.
■ Go to the Brine-pump menu, Add-driftin the service
menu. Set the Brine-pump to position 1 and press
Operating mode. Set Add-drift to 1 and press
Operating mode
■ Ensure the brine and heating medium pumps are
vented and help the pumps to start if necessary.
■ Go to the Brine In, Brine Out menu. Ensure that
the temperature corresponds with the ground/rock
temperature, which indicates the brine flow.
■ Go to the Brine-pump menu, Add-driftin the service
menu. Set Add-drift to 0, the compressor starts,
and go to the Brine In, Brine Out menu. Read the
brine temperatures. The difference between these
two temperatures should be 2 – 5°C when the sys-
tem has come into balance. A high difference indi-
cates a low brine flow. A low difference indicates a
high brine flow.
■ Particular attention should be given to the level in
the collector system when using the heat pump at
first. Some topping-up may be necessary.
■ Read the heat medium temperatures WW-out and
WW-in. The difference between these two temper-
atures, with floating condensing, should be 5 –
10°C when the heat pump heats the hot water
without additional heat. A high difference could
depend on a low heat medium flow.
■ Fill in the commissioning report on page 2.
■ Set the control computer to suit the needs of the
building.
Readjustment, heat medium
side
Start-up and inspection
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