Taylor 428, Service Manual

Page: 15 / 51

11
Model 428
Systems and Controls
Torque Control
Operation
When the unit is placed in the AUTO mode, the
beater motor is activated. After a three second
delay, the compressor starts. When the torque
sensor indicates that viscosity has been achieved, it
trips a microswitch and the compressor stops. The
beater motor continues to run for 20 seconds and
then stops.
If the torque sensor returns to the unsatisfied
position during the additional 20 seconds of beater
operation, the compressor will run again for an
additional 10 seconds (minimum) and will continue
until the torque sensor is satisfied. The beater motor
will run for 20 seconds.
If the torque sensor remains in the satisfied position
after a 7 minute cycle time has elapsed, the
refrigeration system will reactivate for 12 seconds or
until viscosity is satisfied.
Features
Mix Low / Mix Out
The Taylor Model 428 is equipped with a mix low /
mix out function. When the mix supply is low, the
sensor activates the MIX LOW light to indicate a
need for mix replenishment. When a mix out
condition is detected, the sensor activates the MIX
OUT light. The beater motor and compressor are
disabled at the completion of the draw.
Once the mix supply has been replenished, there is
a 30 second delay before the refrigeration system
continues.
Protection Fuse
There is an external fuse located on the control
board. The fuse protects the transformer from
damage in the event that the secondary side of the
board becomes shorted. When the fuse is open
(blown), all board functions are interrupted. The fuse
must then be replaced.