16
Controls and Systems
Models 150, 152, 162, 168
Viscosity Control
A new style watt control board was introduced in
January of 1990. The old style board required color
coded wires to be cut to determine the correct
amperage range. The new board has a 25-turn
potentiometer for setting the amperage range and has
no wires to cut. Turning the potentiometer clockwise
increases the amperage range and counterclockwise
adjustments decrease the amperage range.
The following information pertains to both boards,
except where noted.
Function
Maintains product quality in the freezing cylinder by
electronically monitoring product viscosity.
Specifications
Part No. Function Voltage
037260-12 Supply voltage 115VAC-60Hz
037260-27 Supply voltage 208-240 VAC - 50/60 Hz
Viscosity Adjustment Range Selections
(Old Style Only)
1.2 -- 2.4 Amps
2.3 -- 4.6 Amps
4.0 -- 8.0 Amps
5.7 -- 11.4 Amps
Operation
The watt control monitors product viscosity or
thickness by constantly reading the wattage
consumed by the beater motor. By monitoring
wattage, the control can precisely determine product
viscosity is attained. The watt control cancels the
operation of the refrigeration system.
Freezer operation with the watt viscosity control is very
similar to TQC models. The watt control becomes
operational when power is supplied to the freezer and
the latching relay isengaged. With the freezer properly
primed and the necessary control switches placed in
the“AUTO” position, thedrawlever is manuallyraised
to start the main refrigeration system.
Note: The solid state timer in the control circuit will
also activate the main refrigeration system once the
off-cycle time has elapsed.
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