Advantage Engineering Maximum Instruction Manual page 15

MK Series Portable Chiller : Air-Cooled : HE INSTRUMENT
Refrigerant High Pressure Limit
(protects from excessive condensing pressures)
Refrigerant Low Pressure Limit
(protects from low suction pressures)
Freezestat
(protects against low coolant temperatures)
Motor Overload Relay
(protects motor from excessive amperage)
Figure 2.5A Typical electrical panel
2. A customer supplied, four conductor cable is required for
connection to a customer supplied fused disconnecting
means. The fused disconnecting means shall be sized and
installed according to the unit's power supply requirements
and local electrical codes.
3. Connect the four conductor power cable to power entry
terminal block on the unit's electrical panel. Then connect
the power cable to the fused disconnect switch.
B. NEMA 12 MODELS
1. NEMA 12 units are constructed with a dust tight electrical
enclosure and branch circuit fusing. Electrical power supply
requirements are identified on the equipment data plate.
Determine the plant's voltage supply is the same as the
unit's voltage requirements.
WARNING: Do not connect the unit to a voltage supply
source not equal to the unit's voltage requirements as
specified on the unit's data plate. Use of incorrect
voltage will void the unit's warranty and cause a
significant hazard that may result in serious personal
injury and unit damage.
2. Appropriate conduit and fittings should be selected which
will maintain the integrity of the cabinet.
3. Supply a power conductor sized according to the unit's
power supply requirements. Connect the power conductor
to the unit's power supply entry terminal block or the fused
disconnect switch. Some Nema 12 models may be supplied
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
Transformer
(provides different voltages
to instrument and other components)
Power Entry
(connect to power cord -
grounding lug on panel)
Compressor Contactor
(supplies voltage to compressor)
Motor Contractor
(supplies voltage to coolant pump motor)
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