Connection To Water System - Zanotti GS Series Use And Maintenance Instructions

If a cold room includes more units, each unit shall be provided with its own safety device.
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

Connect the unit paying attention to the colours of the supply cable wires:
a) 230V/1/50-60Hz
b) 230V/3/50-60Hz
c) 400/3/50 Hz
We advise to install a microswitch (not supplied) on the cold room door which will:
· switch on the light in the cold room, stop compressor and evaporator fan
· override the temperature alarm (for about one hour after door closing)
every time the door is opened.
Should microdoor, cold room light, door heater be necessary, carry out following
connections:
Microdoor
Remove the jumper between terminals 19 and 20 of the electronic control box and
connect the microdoor cable according to the following condition: closed contact with
closed door.
Cold room light
Connect as shown in the wiring diagram. Cold room lamp features: 230 Volt and 100
Watt max.
Door heater
Connect as indicated by the plate on terminal board. Heater is indicated by "EP". Output
voltage: 230 Volt.
water condenser
(
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.
3 wires Blue = Neutral
Yellow/Green = Ground
Brown = Phase
4 wires Blue = Phase
Yellow/Green = Ground
Brown = Phase
Black = Phase
5 wires Blue = Neutral
Yellow/Green = Ground
Brown = Phase
Black = Phase
Black = Phase
)
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