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: current which would flow in case of failure due to negligible impedance,
provided that no protective device against overcurrent has been installed on the circuit.
max value of prospective short-circuit current.
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
Grey = Phase
Yellow/ Green = Ground
Brown = Phase
Black = Phase
c) 400/ 3/ 50 Hz
5 wires
Blue = Neutral
Yellow/ Green = Ground
Brown = Phase
Grey = Phase
Black = Phase
We advise to install a microswitch (not supplied) on the cold room door which will
- switch on the light in the cold room, stop the unit and
- override the temperature alarm (for about one hour after door closing)
every time the door is opened.
The necessary cable is available with the unit. Connect it keeping in mind the following:
microswitch closed = door closed.
A.- Thermostat
B.- Power switch (ON/ OFF)
C.- Manual defrost pushbutton
D.- Defrosting lamp
E.- Temperature indicator
With the unit in normal operating mode, act on the thermostat (A) to set the temperature.