User Guide

7
Setting the
Cutout Speed
The cutout speed dial adjusts the motor
voltage range. Set the cutout voltage dial
according to the type of motor you have.
Sleeve Bearing Motors:
Set the cutout speed dial to the middle of
the sleeve bearing range. In this range,
the motor can run down approximately
40-50% of the full line voltage, which
allows sufficient RPMs for cooling and
lubrication.
CAUTION!:
With sleeve bearing motors, it is
important not to adjust outside the
sleeve bearing range or bearing failure
may result.
Ball Bearing Motors: Set the cutout
speed dial to the MIN position in the ball
bearing range. This position offers the
greatest range of speed control. At the
MIN setting the motor can run down to
approximately 20-30% of the full line
voltage.
Note:
After starting at the recommended
settings for either sleeve or ball bearing
motors, you can fine tune the cutout
speed to achieve the desired results.
During the Hard Start mode, full voltage
is applied to the motor during startup to
overcome windmilling and to lubricate the
bearings.
The position of the hard start dial determines
the time period of the hard start mode. The
dial can be adjusted between 0.1 second and
approximately 5 seconds.
Set the hard start dial according to the type
of motor you have. If you have a ball bearing
motor, set the hard start dial to the MIN
position. If you have a sleeve bearing motor,
set the hard start dial to the middle of the
sleeve bearing range.
After you begin at the recommended setting,
you can fine tune the hard start time within
the recommended range for the type of motor
you have.
It is recommended that you use the minimum
possible hard start time to avoid blowing too
much cold air over the condenser.
Hard Start mode is activated when 24 VAC is
applied (or disconnected and re-applied) or the
probe temperature increases to above 70°F.
The hard start mode applies full voltage to the
motor for the set time period. Afterwards, the
motor speed is dictated by the temperature
sensor(s).
Setting the
Hard Start Time