Tetra Pak Hoyer Frigus 600, Manual, Page: 21 / 112

Tetra Pak
Hoyer
4-19
B
F60 03 D 04
Fig. 4.5
4.3 Installation check
Great care must be taken to ensure correct
connection with the earth, as incorrect
connection could cause severe damage to the
machine’s electronic parts and injury or death to
the operator.
The section of the power supply cable must be
determined on the basis of its length and the grid
used during testing prior to shipment; if this cable
is not long enough, it must be replaced in its
entirety, without making any connections. The machine’s electrical installation includes a
device for checking that phase sequence is
correct to ensure that the motors turn in the right
direction; if the machine does not work after
connection, but the touch screen light comes
on, two of the three wires in the machine’s cable
must be reversed on the distribution panel which
supplies the machine.
Check that connections have been made
correctly:
a. Slowly open the cooling water intake tap and
check that there are no leaks. Open the outlet
tap and check that water can flow freely and
that any air in the circuit has been expelled
(this involves turning on the machine’s
cooling compressor because of the pressure
valve which blocks the flow of water - see
below).
b.
Turn on the compressed air supply tap and
check that there is no leakage and that
pressure is between 6 and 10 bar. If the
installation does not have a drier, bleed
condensation from the line before turning on
the tap on the machine.
c. Turn the main switch on the machine’s rear
panel to the (
I
) position.
Release the emergency button (1). Make sure
that the panel switches on.
In case of the alarm message: “phase seq.
not correct”, change the rotation direction.
of the phases by switching the positions of
two wires in the machine’s power supply
cable on the distribution panel (refer to
installation instructions); all motors will then
turn correctly in the direction indicated by
the arrows in figure 4.5.
1