Connecting The Unit; Electric Connection; Connection To Water System - Zanotti GS Series Use And Maintenance Instructions

7

Connecting the unit

ATTEN TI ON
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.
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.
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:
W AR NI NG
Any defective electrical part should be replaced by trained personnel exclusively.
The electric connection should be effected by qualified personnel.
7.2
Connection to w ater 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.
24
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 DI3 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
(
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
)