Carrier CU-S 401, Инструкция по эксплуатации и обслуживанию, Страница: 10 / 24

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5.3 Commissioning In order to achieve optimum performance, the unit must be:
a) Place the cell in a well ventilated room, away from heat sources .
b) Check that the unit has adequate aspirating and extracting power.
5.4 Area surrounding the unit In order to allow it to work properly and to facilitate its maintenance in safety con-
ditions, the unit should be installed providing the minimum spatial requirements
for opening the unit, indicated in figs 6-7.
E
nsure that no damage has occurred to the unit or the equipment it contains during
transportation, particularly to the components fixed to the electric control panel door
and to the refrigerating system pipes. To install the unit, proceed as indicated in the
diagrams, taking special care to level the unit.
6.1 Cleaning the unit Carefully clean the unit with detergents or degreasing substances, removing dust, dirt
and any foreign matter that may have deposited on it during transportation.
CAUTION! Do not use solvents
6.2 Connecting the unit to external 6.2.1 Power mains connection
energy sources Before making the electrical connection, ensure that the voltage and frequency of
the mains supply are as indicated on the unit’s serial plate and that the power
supply is /- 10% of nominal value
Having conducted a preliminary inspection of the elements of the panel, make
the electrical connection. Connection to the mains supply must be made through
a magnetothermal differential.
Safety devices (magnetothermal and/or fused switches ) should be installed on the
power supply line taking into account the current absorption indicated on the plate,
And of the short circuit current present at the installation point.
When a cell contains more than one unit, each should be fitted with its own
magnetothermal switch differential.
Now connect the unit paying attention to the colour of the wires that make up the
power supply cable:
a) 110V-230V/1~/50-60 Hz 3 wires Blue = neutral
Yellow/Green = earth
Brown = phase
b) 230V/3~/50-60 Hz 4 wires Blue = phase
Yellow/green = earth
Brown = phase
Black = phase
c) 400V/3N~/50-60 Hz 5 wires Blue = neutral
Yellow/Green = earth
Brown = phase
Black = phase
Black = phase
N.B.: All units are supplied with terminals 3-4 to which it is possible to connect
any device not alive; for example an ambient thermostat.
It is It is obligatory to follow correct phase sequencing in order to have correct
compressor rotation. If phase sequencing is incorrect then an electronic device in
the electrical panel - or integrated in the compressor protection module - will pre-
vent the compressor from starting.
66.. AASSSSEEM MBBLLYY AAN ND D PPRREEPPAARRAATTIIO ON N PPRRIIO ORR TTO O C CO OM MM MIISSSSIIO ON NIIN NG G
66.. AASSSSEEM MBBLLYY AAN ND D PPRREEPPAARRAATTIIO ON N PPRRIIO ORR TTO O C CO OM MM MIISSSSIIO ON NIIN NG G