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Models 750, 751, 754, 774, 791, 794 Important: To the Operator
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The following chart identifies the symbol definitions.
=OFF
=ON
=MIX
= STANDBY
= WASH
=AUTO
Power SwitchWhen placed in the ON position, the power switch
allows SOFTECH control panel operation.
MIX LOW Indicator LightLocated on the front of the machine is a mix level
indicating light. When the light is flashing, it indic ates
thatthe mix hopperhas a low supply ofmix and s hould
be refilled as soon as possible. Always maintain at
least 3” (7.6 cm) of mix in the hopper. If you neglect to
add mix, a freeze- up may occur. This will cause
eventual damage to the beater, blades, drive shaft,
and freezer door.
MIX REF KeyWhenthe M IX REF key is pressed, the light comes on
indicating the mix hopper refrigeration system is
operating. For the Models 754, 774, 791, and 794 the
MIX REF is controlled by the left side of the freezer as
viewed from the operator end. The MIX REF function
cannot be cancelled unless the AUTO or STANDBY
modes are cancelled first.
STANDBY KeyThe Separate Hopper Refrigeration System (SHR)
and the Cylinder Temperature Retention System
(CTR) are standard features on these machines. The
SHR incorporates the use of a separate small
refrigeration system to maintain the mix in the hopper
below40_(4.4_C) to assure bacteriacontr ol. The CTR
workswith theSHR to maintain agood quality product.
Duringlong “ No Sale” periods, it is necessary t o warm
the product in the freezing cylinder to approximately
35_Fto40_F(1.7_Cto4.4_C)to prevent overbeating
and product breakdown.
To activate the SHR and CTR, press the STANDBY
key.Remove the air orific e and place the air tube (end
without the hole) into the mix inlet hole.
IMPORTANT: Make sure the level of mix in the
hopper is below themix delivery hole in the feed
tube. Failure to follow this instruction may result in
lower product quality when normal operation is
resumed.
When the STANDBY key is pressed, the light comes
on, indicating the CTR (Cylinder Temperature
Retention System) has been activated. In the
STANDBYmode, t he WASHand A UTO functions are
automatically cancelled. The MIX REF function is
automatically locked in to maintain the mix in the
hopper.
To resume normal operation, press the AUTO key.
When the unit cycles off, the product in the freezing
cylinder will be at serving viscosity. At this time, place
theair tube (end with the hole) into the mix inlet hole
and install the air orifice.
WASH Ke yWhen the WASH key is pressed, the light comes on.
Thisindicat es beater motor operation. The STANDBY
orAUTO modes must be cancelled fir st to activate the
WASH mode.
AUTO KeyWhen the AUTO key is pressed, the light comes on.
This indicates that the main refrigerationsystem has
been activated. In the AUTO mode, the WASH or
STANDBYfunct ions are automatically cancelled. The
MIX REF function is automatically locked in to
maintain the mix in the mix hopper.
Note: An indicating light and an audible tone will
sound whenever a mode of operation has been
pressed. Tocancel any function, press the key again.
The light and mode of operation will shut off.