When dimensioning the collector, consideration must
be given to the geographical location, type of rock and
ground and the degree of coverage provided by the
heat pump.
When installing the collector hose ensure it rises con-
stantly towards the heat pump to avoid air pockets. If
this is not possible, install high points to vent the air.
All collector pipes in heated rooms must be insulated
against condensation. The level vessel (NK) must be
installed as the highest point in the collector system and
on the incoming pipe before the brine pump. Note that
condensation may drip from the level vessel. Position
the vessel so that this does not harm other equipment.
As the temperature of collector can fall below 0 °C it
must be protected against freezing down to -15 °C. One
litre of ready mixed brine per meter of collector hose
(applies when using PEM-hose 40 x 2.4 PN 6.3) is used
as a guide value when making the volume calculation.
The level vessel must be marked to show the type of
antifreeze used. Shut-off valves should be installed as
close to the heat pump as possible. Fit a particle filter to
the incoming pipe.
In the case of connection to an open groundwater sys-
tem, an intermediate frost-protected circuit must be pro-
vided, because of the risk of dirt and freezing in the
evaporator. This requires an additional heat exchanger.
Pipe connections14
Pipe installation must be carried out in accordance
with current norms and directives. FIGHTER 1110 can
only operate up to a return temperature of about 50 °C
and an outgoing temperature from the heat pump of
about 60 °C. Since FIGHTER 1110 is not fitted with
shutoff valves, these must be fitted outside of the heat
pump to facilitate servicing.
FIGHTER 1110
For the Installer
General
Pipe connections for the heat medium side are made
at the top. All required safety devices, shut-off valves
(as close to the heat pump as possible), and particle
filter (supplied) are fitted. You should fit either an over-
flow valve or remove some of the thermostats when
connecting to systems with thermostats on all the radi-
ators (coils).
Pipe connections
(heating medium)
Pipe connections
(brine)
The electrical connection for the heat medium pump
(VBP) is changed for fixed condensing, see Electrical
connections, Connecting the heat medium pump for
fixed condensing.
Heating medium pump
The installation can be supplemented with the exhaust
air module FLM 30 to provide ventilation recovery.
To avoid condensation, all pipes and other cold sur-
faces must be isolated with diffusion-proof material.
Ventilation recovery
The installation can be supplemented with fan convec-
tors, for example, in order to allow connections for free
cooling.
Pipes and other cold surfaces must be insulated with
diffusion-proof material to prevent condensation.
Where the cooling demand is high, fan convectors
with drip trays and drain connection are needed.
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