Operation Helpful Hints - Ugolini NHT 1 GL Manual De Instrucciones

NHT GL
Mixer/refrigeration switch (B)
I position : mixer and refrigeration ON.
SOFT DRINK mode.
0 position : OFF.
II position : mixer and refrigeration ON.
GRANITA mode.
Thermostat (D)
Turn clockwise
Turn counterclockwise
To operate the unit:
1 - Set the power switch to I position.
2 - Set the mixer/refrigeration switches as follows:
- to the I position to get soft drink.
- to the II position to get Granita.
3 - Set the light switch to I position.

5. 2 OPERATION HELPFUL HINTS

1 - Granita viscosity adjustment: proper Granita viscosity is
factory preset. To change the viscosity, if needed, use a
standard screwdriver to turn the adjustment screw located
in the rear wall of each container as follows (see figure 4):
- towards right (clockwise) to obtain a thicker product (the
indicator F will go down in opening G).
- towards left (counterclockwise) to obtain a thinner
product (the indicator F will go up in opening G).
2 - Beverage temperature adjustment: proper beverage
temperature is factory preset. To reset, turn the knob
located in each switch box as follows:
- towards right (clockwise) to decrease temperature.
- towards left (counterclockwise) to increase temperature.
Note: beverage temperature is controlled by the
t he r mo st a t o n ly w he n t h e m ix er / r e f r ig er a t io n
6
: to decrease temperature
: to increase temperature
figure 4
switch(es) are in I position, Soft Drink mode.
3 - When the mixer / refrigeration switch(es) are set in I
position, Soft Drink mode, it is possible to manually switch
off the refrigeration by turning completely towards left
(counterclockwise) the thermostat knob until it clicks.
4 - The length of time for freeze down of Granita is governed
by many variables, such as ambient temperature, mix
initial temperature, sugar content (Brix level) and viscosity
setting.
5 - T o s h o r t e n G r a n i t a r e c o v e r y t i m e a n d i n c r e a s e
productivity, it is advisable to pre-chill the product to be
used in the dispenser.
6 - T o s h o r t e n G r a n i t a r e c o v e r y t i m e a n d i n c r e a s e
productivity, the bowl should be refilled after the product
level drops lower than half of the evaporator cylinder and
at the start of each day.
7 - For good product conservation the dispenser must run
overnight, at least in Soft Drink mode.
If this is not possible and product is left in the bowls
overnight, the mixer/refrigeration switches must be set to
the I position at least one hour before the unit is switched
off. This eliminates any block of iced product forming
overnight, which could result in damage to mixers or to
their motor when the unit is switched back on. In any case,
before the unit is restarted, make sure that no blocks of ice
have been formed; if so, they are to be removed before the
unit is switched on. Overnight operation in drink mode also
eliminates possible ice accumulation from condensation all
around the bowls.
8 - Mixers must not be turned off when frozen product is in the
bowl: if not agitated, the product may freeze to a solid
block of ice. If the mixers are turned back on in this
situation, damage to the mixers and their motor may result.
Therefore, mixers may be restarted only after product is
melted.
9 - The dispenser must be able to emit heat.
In case it seems excessive, check that no heating source
is close to the unit and air flow through the slotted panels is
not obstructed by wall or boxes. Allow at least 15 cm (6") of
free clearance all around the dispenser.
In any case if the product in the bowls is frozen and the
safety pressure switch warning light is OFF the unit is
running properly.
Ugolini S.p.A.