Thermo King 002008, Manual

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Unit Description
General Description
The Spectrum SB is a multi-temperature
refrigeration system designed to control the
temperatures in two or three compartments
(zones). The system allows any compartment to
be set at any temperature.
In the Spectrum SB 30/50-2 unit the evaporator in
the host unit controls one compartment (Zone 1),
and a remote evaporator controls the other
compartment (Zone 2). The Spectrum SB 30/50-3
has a second remote evaporator, which controls a
third compartment (Zone 3).
Brief descriptions of the following components
and features are given below:
• Host Unit (Zone 1)
• Spectrum Remote Evaporators (Zone 2 and
Zone 3)
• Thermo King TK 486 Engine
• Thermo King X430L Compressor
• Smart Reefer Multi-Temp µP-IV
Microprocessor
• CYCLE-SENTRY
TM
Start-Stop Controls
• DAS (Optional)
• Remote Control Box (Optional).
Host Unit
The host unit contains the diesel engine, the
compressor, the condenser, an evaporator and the
control box. The Model 50 host unit also contains
an electric motor. The unit is equipped with a
Smart Reefer Multi-Temp µP-IV Microprocessor,
which controls the operation of the host unit and
any remote evaporators. Refrigeration lines and
wire harness connect the host unit to the remote
evaporators.
The host unit mounts on the front of the trailer
with the unit evaporator portion extending into
trailer.
Figure 1: Front View
Spectrum Remote Evaporators
A Spectrum Remote Evaporator is mounted on the
ceiling of each remote compartment to provide
temperature control for Zone 2 and Zone 3 (if
used). A Spectrum Remote Evaporator with two
fans is called an S-2. A Spectrum Remote
Evaporator with three fans is called an S-3. Two
remote evaporators can be mounted in the same
remote compartment to provide more capacity.
Figure 2: S-3 Spectrum Remote Evaporator
Thermo King TK 486 Engine
The unit uses a quiet running Thermo King
TK 486, 4-cylinder, water cooled, direct injection
diesel engine. The TK 486 displaces 2.09 liters
and is rated at 33.9 horsepower (25.3 kilowatts) at
2200 rpm.
AJA920
AJA984