Electrical connection
17
FIGHTER 1330
■ A heat pump must not be connected without the
permission of the electricity supplier and must be
connected under the supervision of a qualified
electrician.
■ If an miniature circuit-breaker is used this should
have a motor characteristic D (compressor opera-
tion). For MCB size see Technical Specifications.
■ When the building is equipped with an earth-fault
breaker, the heat pump should be equipped with a
separate one.
■ The FIGHTER 1330 does not include an isolator
switch on the incoming electrical supply. The instal-
lation must be preceded by a circuit-breaker with at
least a 3 mm breaking gap.
■ If an insulation test is to be carried out in the build-
ing, disconnect the heat pump.
■ Connect the heat pump to the terminal block X9,
400 V 3-phase, neutral + earth via a distribution
board with fuses. Where there is more than one
heat pump, each unit must have a separate supply.
■ Continue the installation by carrying out the inspec-
tion set out in Description of functions - Start up >
Inspection.
■ NOTE! It is not permitted to fit additional com-
ponents in the electrical connection area.
■ Note that FIGHTER 1330 provides 230V control
signals that are intended to control external
contactors and not to drive pumps.
X9, incoming electricity
Supply cable
Sensor cables
Connection
LEK
Phase sequence monitor
FIGHTER 1330- 30, 40kW
Set the switch to “1” and check the phase sequence as
below.
■ Orange LED is lit at correct phase sequence.
■ Green LED is lit when there is power.
164
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