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II.8.3.4 Checking the electrical connections
Does the unit power supply match the values
indicated on the plaque?
Is the phase sequence correct?
Does the earth conform with current regulations?
Are the power circuit electric conductors of the size
indicated in the manual?
Is the circuit breaker positioned upstream from the
unit of the right size?
The electric connection is compliant!
II.8.3.5 First start-up (Standard Unit)
Ask all unauthorised personnel to leave the area.
De-activate the magnetothermal switches on the compressor
Simulate an empty start in order to ensure that the power
contactors have been inserted correctly.
Are the power contactors inserted correctly?
Disconnect the power from the auxiliary supply again.
De-activate the magnetothermal switches on the compressor
Power the auxiliary circuit.
Start up the machine using the control panel
Choose the operating modes
Check the correct rotation of the pumps and fans, the flows and
the operation of the heat exchangers sensors.
Start-up procedure completed!
START
YES
YES
YES
YES
YES
START
power supply.
YES
power supply.
(ON/OFF key).
(MODE key).
NO
Restore the correct power supply.
NO
Restore the correct phase sequence.
NO
Danger! Restore the earth connection!
Danger! Replace the wires
NO
immediately!
Danger! Replace the component
NO
immediately!
Check and replace the component if
NO
necessary.
All ON/OFF operations must be carried out
EXCLUSIVELY using the ON/OFF key on the
control panel.
Check and replace the component if
NO
necessary.
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