Thermo King UT-1200, Manual

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Unit Description
General Description
The UT-1200X is a microprocessor based
transport temperature control system, which
utilizes the SR-3 Truck HMI microcontroller to
manage system functions.
The unit is a two-piece under-mount refrigeration
unit designed for truck applications. The
condenser unit mounts underneath the truck and
the evaporator mounts inside the truck body. Two
different evaporators are used: the UTSE, and the
Spectrum S-3.
Engine power for the UT-1200X is provided by
the TK376, a three cylinder, special clean and
silent diesel engine rated at 19.6 continuous
horsepower (14.6 kW) at 2425 RPM. A belt drive
system transfers energy to the compressor, unit
fans and alternator. A centrifugal clutch on the
diesel engine isolates the engine during electric
standby operation. The clutch engages fully at 600
± 100 rpm on engine operation.
Unit Features
• Microprocessor Controller, SR-3 Truck
• Alarm Code Display
• Battery Voltage Display
• Continuous System Monitoring
• Coolant Temperature Display
• CYCLE-SENTRY
TM
Start/Stop Controls
• Engine and Electric (Model 50) Hour
Display
• In-Cab Remote
• Smart Defrost
• Symbolic Controller Interface
• Unit Self Check-pretripping
• Air Cleaner, Dry Type
• Alternator, 65 amp for UT-800, 120 Amp for
UT-1200
• Automatic Phase Correction (Model 50)
• Bypass Oil Filter
• Coolant Expansion Tank
• Corrosion Resistant Protection
• Diesel/Electric Autoswitching
• Economy Mode
• Fahrenheit and Celsius Scales
• Fuel Filter, Spin On
• Oil Filter, Full Flow
• R-404A Chlorine-free Refrigerant
• Scroll Compressor
• Stainless Steel Condenser and Evaporator
Hardware
• TK376U Diesel Engine
Unit Options
• DAS (Data Acquisition System)
• Door Switch
• Evaporator Side Screens
• Scissors Field Installation Kit
• Synthetic Oil
• Battery Box Kit
• Remote Body-Mount Box Kit
• Premium HMI Control Panel
• Telematics
Standard HMI Control Panel
The Standard HMI Control Panel
(Human/Machine Interface) is used to operate the
unit and display unit information. The Control
Panel is typically located in the vehicle driver's
compartment and communicates with the base
controller using a connection on the interface
board.
Figure 1: Standard HMI Control Panel