MANUALE ABBATTITORI DI TEMPERATURA - Everlasting

6
ABF 05-10-15
INSTALLATION
Bring the appliance on the intended place of use and verify that all the details relating to installation, i.e.
power supply and holes in the walls for pipes and drains, are set up.
The installation must be performed by qualified personnel with all the necessary training provided for by
the country where the appliance is installed.
The installation must be performed in compliance with the information indicated in Table 2 for electrical
connections and in Table 3 for refrigerator connections.
REFRIGERATOR CONNECTION
It is compulsory to use the pipes suggested in Table 3 to carry out the connections. The usual installation
procedure first requires the placing of the pipes, then the connection of the unions.
While connecting the suction pipe, remember to keep it slightly inclined towards the compressor. In case
of sloping stretches, it is necessary to dispose one or more siphons on the vertical stretch in order to help
the oil returning to the compressor. The siphons should not have remarkable concavities or subsidence,
especially when the pipe section is quite large. As far as the liquid-driving and the defrosting pipes are
concerned, it is not necessary to follow any specific procedure: that is why these pipes usually run along
the suction pipe, obviously without making any siphon.
After placing the pipes, unions must be connected. As for the welding-flange-type union, it is necessary to
remove the movable part of the union in order to weld it to the pipe. Fix again the two parts of the pipe by
interposing the gasket. Before tightening the union, make sure that the thread is inserted correctly.
After the placing and the refrigerator connection are accomplished, it is necessary to completely depressurize
the appliance. Warning: both the evaporator and the condensing unit are charged with nitrogen.
Before depressurizing the appliance, let all the inert gas come out and open the taps on the compressor
suction, on the receiver and on the compressor driving element. Subsequently, charge the appliance with
R404A gas, carefully checking that the unit is turned off.
ELECTRICAL CONNECTION
Use power cords of section and type recommended by the manufacturer, as indicated in Table 2.
The power supply system must be equipped with a safety device or with an automatic main switch with an
efficient earth connection system. In case no electrical safety is guaranteed, the manufacturer declines all
responsibility.
An earth connection is compulsory. Moreover, the appliance must be included in an equipotent system. The
connection is made through the terminal located next to the condensing unit power cord entrance.
Besides the power cord, it is necessary to connect the condensing unit electrical board with the connection
box located on the top of the cold room. The features of the cords to be used are indicated in Table 2.
Warning: connect the cords according to their numeration.
PLACE IN SERVICE
Before activating the chilling/freezing cycle start key, give tension to the condensing unit to pre-warm
the compressor. Leave in this condition for some hours; the duration of this phase depends on the external
temperature: the higher the temperature, the shorter the duration. At the end of pre-warming, the blast
chiller is ready to work. It is necessary to carry out the pre-warming phase each time the condensing unit
will lack power supply for a long time. Set up a freezing cycle with the appliance unloaded in order to test
it, and fill it up with refrigerating gas R404A if necessary.