NOTE!
Electrical installation and service
must be carried out under the
supervision of a qualified electrician.
Electrical installation and wiring must
be carried out in accordance with the
stipulations in force.
Electrical connection14
FIGHTER 1140
FIGHTER 1140 must not be connected without the
permission of the electricity supplier and must be con-
nected under the supervision of a qualified electrician.
FIGHTER 1140 must be installed via an isolator
switch with a minimum breaking gap of 3 mm. Other
electrical equipment, except the outdoor temperature
sensor and the current transformers are ready con-
nected 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 operation). For
fuse ratings, see technical data, “Fuse” protection.
When the building is equipped with an earth-fault
breaker the heat pump should be equipped with a
separate one.
Check that motor protection (26) is set to “auto-mode”
and that the operating current has been set correctly,
see technical specifications, “Max. operating current,
compressor”.
The automatic heating control system, circulation
pumps and their wiring, are internally fuse protected
with a miniature circuit breaker (1).
Connection
Cable glands for
the supply
Cable glands for
sensors
-X9
26
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