6.8 Cleaning
Clean the unit carefully. Remove any dust, foreign substances and dirt possibly deposited during
handling. Use detergents and degreasers.
ATTEN TI ON
Solvents are not allowed.
7
Connecting the unit
ATTEN TI ON
Before connecting the unit make sure that m ains 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.
ATTEN TI ON
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.
When choosing the protective device take the following into consideration: should the
current
at installation point be higher than 10 KA, install a limiting device which reduces its peak value to 17 KA.
Prospective short-circuit current (Ik)
provided that no protective device against overcurrent has been installed on the circuit.
Peak value:
max value of prospective short-circuit current.
Connect the unit paying attention to the colours of the supply cable wires:
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.
ATTEN TI ON
Above m icrosw itch is not supplied w ith the unit. I f the microdoor cable is disconnected
or dam aged, the sam e conditions w ill occur as in case of open door and connected
m icrodoor.
: current which would flow in case of failure due to negligible impedance,
a) 230V/1/50-60Hz
b) 230V/3/50-60Hz
c) 400/3/50 Hz
3 wires
Yellow/Green = Ground
Brown = Phase
4 wires
Grey = Phase
Yellow/Green = Ground
Brown = Phase
Black = Phase
5 wires
Blue = Neutral
Yellow/Green = Ground
Brown = Phase
Grey = Phase
Black = Phase
prospective short-circuit
24