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CAUTION
Before making the electrical connection, check that the mains voltage and frequency are as
indicated on the unit label and that the current remains at a tolerance of +/- 10% with respect to
the nominal value. IF THE CURRENT DOES NOT REMAIN WITHIN THIS TOLERANCE, THE USER
MUST PROVIDE VOLTAGE STABILISERS.
CAUTION
The machine must be connected to the grounding system prior to commissioning. The
system shall comply with the requirements of national regulations.
CAUTION
The line connection must be made with a suitable protection device (magnetothermic switch or
magnetothermic differential switch) selected by the installer or by qualified, authorised staff on
the basis of the line type and consumption indicated on the unit label.
If there is more than one unit in a cold room, each unit must have its own protection device.
CAUTION
Do not connect the door micro switch cables and cold room light cable to the supply line.
3.
OPERATING INSTRUCTIONS
3.1.
CONNECTING THE UNIT TO EXTERNAL POWER SOURCES
3.2.
ELECTRICAL POWER CONNECTION
You must perform a preliminary inspection of the components of the electrical panel, and then proceed to
the electrical connection.
SUPPLY CABLE
a) 230V/1/50-60Hz
b) 400/3/50Hz
3 wires
!
Blue = Neutral
5 wires
!
Blue=Neutral
Yellow/Green = earth
Yellow/Green = earth
Brown, Black or Grey = phase
Brown = phase
Black = phase
Grey = phase
The unit is equipped with:
- a door micro switch cable (door micro switch not supplied).
- a cold room light cable
- a porthole with an led 230V light bulb.
3.3.
ADJUSTMENT AND CONTROL
The unit is governed by an electronic circuit board and digital control device.
The unit functioning is adjusted by a cold room thermostatic temperature control according to the
temperature setting made by the user. So, when the cold room temperature is higher than the temperature
setting plus a differential value, the cooling cycle starts up, and it stops when the cold room temperature is
the same as the temperature setting.
In this operating mode the digital display of the control shows the cold room temperature.
