Nibe FIGHTER 640P, Installation And Maintenance Instructions Manual, Page: 38 / 40

36 FIGHTER 640P
For the Installer
Docking
Docking to the accumulator tank
In order to utilise special tariffs the FIGHTER 640P can be
supplemented with an accumulator tank (with immersion
heater), which supplies a heat addition during off peak
times. Energy is supplied when a circulation pump starts
and pumps the externally heated water to the FIGHTER’s
heating circuit. This takes place until there is no longer a
need of the energy addition.
An appropriate size of accumulator tank must be chosen
according to individual needs.
Low tariff
During low tariff, FIGHTER 640P now provides, functionally
separate from the accumulator tank without external help,
ventilation, radiator heating and domestic hot water.
If additional energy is required this is provided by the im-
mersion heater in FIGHTER 640P.
The accumulator tanks are charged independently of the
FIGHTER 640P until the preferred tank temperature has
been reached.
High tariff
The fan, circulation pump and compressor in FIGHTER
640P work as before. If additional energy is required this
is taken from the accumulator tanks. If the stored energy
is not sufficient in cold weather conditions or with abnor-
mally high hot water consumption, the immersion heater
in FIGHTER can be connected to cover the energy require-
ment.
Equipment
In addition to FIGHTER 640P the system consists of one (or
more) accumulator tank (s) PS 500 and a docking kit PSP
11 (for one accumulator tank) or PSP 21 (for two accumu-
lator tanks). The connection kit consists of a connection
box SK11, a Laddomat LGT 10, a trim valve, one or two
immersion heaters, a thermostat, which is placed high up
in the accumulator tank as well as connection instructions.
SK11 is not approved for more than 16
A, which means the total output of the
accumulator tanks’ electrical addition com-
bined must not exceed 11 kW
Note!
Schaltkasten SK 11
Einbindung mit
FIGHTER 600P
PS 500
F600P
Schaltkasten SK 11
Einbindung mit
FIGHTER 640P
PS 500
F640P
Connection box SK 11
Connecting with
FIGHTER 640P