Heat Production; Domestic Hot Water; Electric Boiler Mode; Brine Pump - Nibe FIGHTER 1120 Installation And Maintenance Instructions Manual

For Home Owners
8
Heating
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 flow temperature (HM Flow) 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 a maximum of seven output steps if fitted, or
an external oil-fired boiler and mixing valve.
Room temperature
FIGHTER 1120 can be complemented with Domestic
hot water operation and, for example, our VPA hot
water accumulator to produce domestic hot water.
If the FIGHTER 1120 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.
Changing of Electric boiler mode is done from menu
9.2.4.
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).
The setting is made on menu 9.2.12, Brine pump 10
days.
FIGHTER 1120 can be docked with an external unit
with its own automatic heating control system.
FIGHTER 1120 then delivers heat up to a fixed temp-
erature level. This is known as fixed condensing. To
regulate the room temperature, see the instructions
for the external units.
Not connected from the factory, requires the accessory
ETS 11.
FIGHTER 1120
Hot water

Electric boiler mode

Brine pump

Fixed condensing

Standby mode