Example:
If the FIGHTER 1110 is fitted with the Electrical sup-
plement accessory the unit can be used solely as an
electric boiler to produce heat and hot water. This is
especially useful, for example, before the collector
installation is finished.
The brine pump normally follows the operation of the
heat pump. There is a special operating mode for con-
tinuous operation for 10 days, followed by return to
normal mode (used before stable circulation has been
established).
FIGHTER 1110 can be docked with an external unit
with its own automatic heating control system. FIGHT-
ER 1110 then delivers heat up to a fixed temperature
level. This is known as fixed condensing. To regulate
the room temperature, see the instructions for the
external units.
FIGHTER 1110 can be supplemented with domestic
hot water operation and, for example, our VPA hot
water accumulator to produce domestic hot water.
The supply of heat to the building is controlled by the
control computer settings (curve slope and offset).
After adjustment the correct amount of heat for the
current outdoor temperature is supplied. The heat
pump’s flow temperature (WW-out) will hover around
the theoretical required value (the value in brackets on
the display). For subnormal temperatures the comput-
er calculates a deficit in the form of degree minutes,
which results in the acceleration of heat production.
The larger the subnormal temperature, the greater the
heat production.
The heat pump computer can control an immersion
heater in three output steps if fitted, or an external oil-
fired boiler and shunt valve.
Heating Hot water
Electric boiler mode
Brine pump
Fixed condensing
FIGHTER 1110
Basic values
The lower values in the
north of Sweden are due
to the lower design out-
door temperature.
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