Advantage Engineering Maximum Instruction Manual page 20

MK Series Portable Chiller : Air-Cooled : HE INSTRUMENT
B. ELECTRIC MOTOR PHASING (PUMP ROTATION)
1.
RESERVOIR LEVEL light flashes red, the operator must add
fluid to the reservoir. Verify reservoir level via the coolant
sight glass (figure 3.2C).
The operator must determine the unit is phased correctly
by visually inspecting the rotation of the pump motor shaft.
The procedure is outlined below. Incorrect phasing results
in poor operation and eventual damage to the unit.
a. Supply electrical power to the unit. Once the
correct voltage is supplied to the unit, the POWER
light on the unit's control panel will illuminate.
Adjust the setpoint to 70°F to prevent the
compressor from activating during this procedure.
b. Remove all necessary cover panels to access the
pump motor. Note that the electrical power is
engaged at this point and caution must be
observed while the electrical supply is engaged
and cabinet panels are removed and opened.
c. Locate the electric
motor (figure 3.2D).
The electric motor
can be identified
when the electrical
panel cover is open.
The operator must
identify the motor
shaft inside the
electric motor
housing. The motor
shaft can be seen
through the vent
slots in the motor
housing or by
removing the shaft
cover.
d. Toggle the unit's
START and STOP
keys (figure 3.2E).
This will quickly
cycle the pump
motor "on" and
then "off".
e. Observe the motor shaft. When the START key is
pressed, the motor shaft will rotate. When the
STOP key is pressed, the shaft will slowly "coast" to
a stop. As the shaft slows, the operator can identify
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
Electric motor
Start/Stop push buttons -
LE instrument
Fax: 317-881-1277
Figure 3.2D
Figure 3.2E
Page: 20