TK 56171-2-OP-EN
23
Thermo King X430 Series Reciprocating
Compressor
The unit is equipped with a Thermo King X430 Series four cylinder
reciprocating compressor with 30.0 cu. in. (492 cm
3
) displacement.
Electronic Throttling Valve
The ETV provides enhanced control of the refrigeration system as follows:
•
Allows the refrigeration system to fully utilize the power capabilities of
the engine under varying conditions
•
Provides an additional measure of protection against high discharge
pressures
•
Protects the engine from high coolant temperature shutdowns
•
Provides a means of precise temperature control.
Remote Evaporators
Remote evaporators (if equipped) are mounted on the ceiling of each remote
compartment to provide temperature control for Zone 2 and Zone 3 (if used).
SMART REEFER 4 (SR-4) Control System
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Do not operate the SR-4 Controller until you are completely familiar with its
function.
The SR-4 is a microprocessor control system designed for a transport
refrigeration system. The SR-4 integrates the following functions:
•
Changing setpoint and operating mode
•
Viewing gauge, sensor, and hourmeter readings
•
Initiating Defrost cycles
•
Viewing and clearing alarms
The microprocessor components are located inside the control box, which is
located inside the lower roadside service door. The microprocessor is
connected to a Human Machine Interface (HMI) Control Panel. It is used to
operate the unit. The HMI control panel is mounted on the face of the control
