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6.7
Cleaning
Clean the unit carefully. Remove any dust, foreign substances and dirt possibly deposited during handling.
Use detergents and degreasers.
ATTENTION
Solvents are not allowed.
7
CONNECTING THE UNIT
ATTENTION
Before connecting the unit make sure that mains voltage and frequency
correspond to the values show n in the data plate. Voltage tolerance: +/ - 10%
compared to nominal value.
7.1
Electric connection
Connect the unit after checking the panel components.
ATTENTION
Connection to the electric line shall be effected applying a suitable safety device
(a circuit breaker or a ground fault interrupter) selected by the installer on the
basis of the line involved and of the absorption indicated on the unit plate.
If a cold room includes more units, each unit shall be provided with its own safety device.
Connect the unit paying attention to the colours of the supply cable wires:
a)
230V/1/50-60Hz 3 wires
Blue = Neutral
Yellow/Green = Ground
Brown = Phase
b)
230V/3/50-60Hz 4 wires
Blue = Phase
Yellow/Green = Ground
Grey = Phase
Black = Phase
c)
400/3/50 Hz 5 wires
Blue = Neutral
Yellow/Green = Ground
Brown = Phase
Grey = Phase
Black = Phase
WARNING
Any defective electrical part should be replaced by trained personnel exclusively.
The electric connection should be effected by qualified personnel.
7.2
Connection to water system
This connection is only necessary if the unit has a water-cooled condenser. It is effected by following
the indications of the tags positioned by the inlet and outlet pipes. Connection pipes should never be smaller
in diameter than those on the unit. A minimum water pressure of 1 bar is required for correct operation of
the unit.
7.3
Connection to humidifier system
Connect humidifier water supply pipe: it is necessary to use a pipe with a diameter of at least 10mm.,
and pressure in the water circuit must be between 1.5 and 3.0 ATM.
Install a pressure reducer and a filter before water inlet.
