Technogel FREEZER 200/1 Instructions For The Installation, Use And Maintenance page 18

Regulation of ice-cream viscosity with the hot gas valve
When the Freezer is connected to a packing machine, the quantity and viscosity of the ice-cream produced
must be regulated to suit requirements.
If the requirement is less than the quantity your Freezer produces, the ice-cream emerging from the machine
will be too hard and it will be difficult to fill in to the cones, cups, etc.
To solve this problem, the machine is equipped with a hot gas injector which serves to regulate the viscosity
of the ice-cream.
Instructions for regulating ice-cream viscosity with the hot gas:
While the Freezer is in operation, press the "HOT GAS" button N.
Inject hot gas by turning knob H in an anti-clockwise direction.
To establish the right quantity, check the viscosity value on the
display 7 and stabilize it at the value which, in your opinion, is right
for the product currently in production.
Example:
If prior to regulation the value of viscosity appearing on the
display was "8" and the ice-cream is too hard and after injecting
hot gas you see that the ice-cream is okay when the value
displayed is "7.2", keep this value of viscosity by leaving the hot
gas connected until production is terminated.
Regulation is very sensitive. Just a slight turn of the knob is
sufficient to achieve results.
On termination of production, disconnect the hot gas on the
keyboard and turn knob H off completely.
 Use of pump safety valves
If the pressure inside the freezer pipe exceeds 15 Bar (pressure indicated on pressure gauge G, the safety
valves VS will off-load the excess mixture onto the ground.
To stop discharge of the mixture, use faucet B and open as much as necessary to take the pressure back to
the current values (from 10 to 13 Bar).
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