Tetra Pak HOYER COMET N, Manual

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4-3
Tetra Pak
Hoyer
CN 03 D A 01
4.3 Electrical connection (Refer to ALL. 1 Electric diagrams )
Make sure that the bypass valves of the ice-
cream pipes (Part 3 Fig.4.1) are connected to the
dosers (Part 4 Fig.4.1) as required.
Connect the ice-cream tubes from the freezers to
the ice-cream dosers by means of the bypass
valves (Part 5 Fig.4.3) located above the
pneumatic valve.
After performing all the electric and pneumatic
connections, it is necessary to perform the
following checks:
• Make sure there is no foreign matter inside the
machine that could prevent its operation.
• Release the emergency button.
• Rotate the main switch.
• Open the air supply.
• Press the Jog button and check that the shutters
move from left to right (Part 2 Fig.4.1) looking
at the machine from the operator’s side.
• Press button Stop to stop the chain.
4.4 Checking the direction of rotation
4.6 Connection to the freezers
WARNING:
If the direction of rotation is incorrect, invert the
phases on the terminal block.
This operation must be performed by qualified
personnel only, familiar with laws regulating the
prevention of industrial accidents.
Before starting the freezers connected to the
machine, place a container below the ice-cream
bypass valve and another container on the
opposite side of the machine, under the product
collection slide.
4.5 Pneumatic connections (Refer to ALL. 2 Pneumatic diagrams )
onnect the machine to the supply of compressed
air. The minimum working pressure is 6 bar.
If the pressure is below 4 bar, a special pressure
switch calibrated by the manufacturer stops the
functions of the machine.
For information on the consumption of air and on
the dimensions of the supply pipe, see 3.7
Technical specifications.
The machine’s electrical system has been factory
checked by Tetra Pak Hoyer engineers.
The machine’s components are electrically pro-
tected against short-circuits.
WARNING:
The connection must be made exclusively by
competent technicians familiar with accident
prevention legislation.
It is recommended that the power is taken from
a master switch fitted with thermal overload
cutout and ultra-rapid fuses of adequate amperage.
WARNING:
The differential cutout switch must be class “A”
and suitable for protecting inverter electronic
power circuits.
•
Check the data on the identification plate to
ensure that the machine is compatible with
the factory voltage.
• Connect the three phases to terminals R S T
and the earth wire to the earth terminals in
the electric panel.
For the minimum sections of the power supply
cable, refer to the voltage and power values
reported on the identification plate and the stand-
ards in force in the country of installation.