Cleaning; Connecting The Unit; Electric Connection - Technoblock LS Serie Manual De Uso

WARNING
Above devices have been developed to safeguard the operator's safety.

6.8 Cleaning

Clean the unit carefully. Remove any dust, foreign substances and dirt possibly deposited during
handling. Use detergents and degreasers.
ATTENTION
Solvents are not allowed.
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Connecting the unit

ATTENTION
Before connecting the unit make sure that mains voltage and frequency correspond to
the values shown in the data plate. Voltage tolerance: +/- 10% compared to nominal
value.

7.1 Electric connection

Connect the unit after checking the panel components.
ATTENTION
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.
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 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:
2. External fan protections placed on the evaporating and condensing units, secured
with screws.
electrical safety devices
The following
a. Protection of fans (belonging to motors) against high power absorption; with
automatic reset.
b. High pressure switch (only for special components) to protect against excessive
pressure; with automatic reset.
a) 230V/1/50-60Hz
b) 230V/3/50-60Hz
c) 400/3/50 Hz
are supplied:
3 wires Blue = Neutral
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
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