Advantage Maximum MG Series - Page 25

update 08/02/2021
Maximum Series Portable Chiller : Air & Water-Cooled : MG Series Instrument
Page: 25
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: 317-881-1277
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
e. Remove the shaft cover plug to observe the motor shaft. When the unit
is on, the motor shaft will rotate. When switched off, the shaft will slowly
“coast” to a stop. As the shaft slows, the operator can identify the rotation
of the motor shaft.
Correct rotation (correct phase) is
“clockwise”, when viewed from the
rear of the motor.
Incorrect rotation is “counter-clockwise”
(incorrect phase) when viewed from the
rear of the motor.
If the shaft does not rotate when the
unit is switched on, the operator must
identify the cause as outlined in the
troubleshooting and repair section of this
manual.
f. If the motor shaft is phased correctly (shaft turns in a clockwise
direction), continue with step C. If the motor shaft is NOT phased
correctly (shaft turns in a counter-clockwise direction), correct as outlined
in step 2.
2. If the unit is phased incorrectly, the operator must:
a. Disengagetheelectricalpowersupplytotheunitattheunit’sdisconnect
switch. Follow all facility proper lock-out tag-out procedures before
proceeding.
b. Once the electrical power supply is disengaged the operator can change
rotation by switching any two incoming power conductors at the terminal
block or customer supplied main power disconnect.
Correct shaft rotation is clockwise.
Pump electric motor located on typical water-cooled unit.
Pump Motor
Shaft Cover Plug
Detail view of typical Pump Motor.