Thermo King 098916, Maintenance Manual

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Unit Description, Features & Options
Introduction
This chapter will briefly describe the following
items:
• General Unit Description.
• Standard Component Descriptions.
• Optional Component Descriptions.
General Description
MAGNUM units are all-electric, single-piece,
refrigeration units with bottom air supply. The
unit is designed to cool and heat containers for
shipboard or overland transit. The unit mounts in
the front wall of the container. MAGNUM SL and
MAGNUM 20 units feature a slimline frame.
Fork lift pockets are provided for installation and
removal of the unit.
The frame and bulkhead panels are constructed of
aluminum and are treated to resist corrosion. A
hinged, removable evaporator compartment door
provides easy service access. All components
except the evaporator coil and electric heaters can
be replaced from the front of the unit.
Each unit is equipped with an 18.3 m (60 ft.)
power cable for operation on 460-380V/3
Ph/60-50 Hz power. The unit power cable is
stored below the control box in the condenser
section.
Each unit is equipped with 460-380V/3 Ph/60-50
Hz electric motors. An automatic phase correction
system provides the proper electrical phase
sequence for condenser fan, evaporator fan and
compressor operation.
Figure 3: MAGNUM Unit
The MAGNUM container unit features the
following components. Each component will be
described briefly on the following pages.:
• Scroll Compressor
• Compressor Digital Control Valve
• Economizer Heat Exchange System
• Temperature Sensors
• Fresh Air Exchange System
• Receiver Tank Sight Glass
• Evaporator Fans
• Condenser Fan Control
• Suction/Discharge Pressure Sensor (Optional)
• Remote Monitoring Receptacle Option (4-pin)
(optional)
• Remote Monitoring Modem (RMM)
(Optional)
• USDA Cold Treatment Temperature
Recording (Optional)
• Water-Cooled Condenser/Receiver Tank
(Optional)
• Advanced Fresh Air Management (AFAM)
and Advanced Fresh Air Management Plus
(AFAM+) (Optional)
• Water Pressure Switch (Optional)
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