Carrier 751 Freezer User Manual


 
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Models 750, 751, 754, 774, 794 Important: To the Operator
The following c hart i dentifies the symbol definitions.
=OFF
=ON
=MIX
= STANDBY
= WASH
=AUTO
Power Switch
When placed in the ON position, the power switch
allows SOFTECH control panel operation.
MIX LOW Indicator Light
Located on the front of the machine is a mix level
indicating light. When the light is flashing, it indicates
that the mix hopper has a low supply of mix andshould
be refilled as soon as possible. Always maintain at
least 3” (7.6 cm) of m ix 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 Key
When the MIX REF key is pressed, the light comes on
indicating the mix hopper refrigeration system is
operating. F or the M odels 754, 774, and 794 t he MIX
REF is controlled b y the left side of the freezer as
viewed from the operator end. T he MIX REF function
cannot be cancelled unless the AUTO or STANDBY
modes are c ancelled first.
STANDBY Key
The Separate Hopper Refrigeration System (SHR)
and the Cylinder Temperature Retention System
(CTR) are standard features on these machines. T he
SHR incorporates the use of a separate small
refrigeration system to maintain the mix in the hopper
below 40_(4.4_C) to assure bacteria control. The CTR
works with the SHR to maintain a good quality product.
During long “No Sale” periods, it is necessary to warm
the product in the freezing cylinder to approximately
35_Fto40_F(1.7_Cto4.4_C) to prevent overbeating
and product b reakdown.
To activate the SHR and CTR, press the STANDBY
key. Remove the air orifice and place the air tube (end
without the hole) into the mix inlet hole.
When the ST ANDBY key is pressed, the light comes
on, indicating the CTR (Cylinder Temperature
Retention System) has been activated. In the
STANDBY mode, the W ASH and AUTO functions are
automatically cancelled. The MIX REF function is
automatically locked in to maintain the mix i n the
hopper.
To resume normal operation, press the AUTO key.
When the unit cycles of f, the product in the freezing
cylinder will be at s e rving viscosity. At this time, place
the air tube (end with the hole) into the mix inlet hole
and install the air orifice.
WASH Key
When the WASH key is pressed, the light comes on.
This indicates beater motor operation. The STANDBY
or AUTO modes must be cancelled first to activate the
W ASH m ode.
AUTO Key
When the AUTO key is pressed, the light comes on.
This indicates that the main refrigeration system has
been activated. In the AUTO mode, the W ASH or
STANDBY functions are automatically c ancelled. 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. To cancel any function, pr ess the key again.
The light and mode of operation will shut off.