Electrical connection
FIGHTER 1240
16
FIGHTER 1240 must be installed via an isolator
switch with a minimum breaking gap of 3 mm.
Incoming electricity connected to terminal block -X9
via cable gland (99)
Other electrical equipment, except the outdoor sensor
and the current transformers, is connected at the factory.
■ Disconnect the heat pump before insulation testing
the house wiring.
■ The heat pump is not reconnectable between 1-
phase and 3-phase; neither can it be reconnected
between 3 x 230 V and 3 x 400 V.
■ If a miniature circuit breaker is used this should
have motor characteristic “D” (compressor opera-
tion). For fuse ratings, see technical specifications.
■ Check that motor protection (26) is set to “auto-
mode” and that the operating current has been set
correctly, see technical specifications, “Max. ope-
rating current, compressor”.
■ When the building is equipped with an earth-fault
breaker the heat pump should be equipped with a
separate one.
■ Connection must not be carried out without the
permission of the electricity supplier and must be
carried out under the supervision of a qualified
electrician.
Electrical connections
The automatic heating control system, circulation
pumps and their wiring, are internally fuse protected
with a miniature circuit breaker (1).
Connection
NOTE!
Reset the temperature limiter, it may
have tripped during transport.
NOTE!
The switch (8) must not be turned to 1
or “ ” until the boiler has been
filled with water. Otherwise the
temperature limiter, thermostat,
compressor or the immersion heater
can be damaged.
NOTE!
Electrical installation and service must
be carried out under the supervision of
a qualified electrician in accordance
with the stipulations in force.
Temperature limiter
The temperature limiter (25) cuts off the supply to the
immersion heater if the temperature rises to between
90 and 100°C; it can be manually reset by pressing
the button on the temperature limiter.
Resetting
The temperature limiter (25) is accessible behind the
cover for right-hand electrical connection. The tempe-
rature limiter is reset by firmly pressing in its button.
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