Carrier TRANSICOLD VECTOR 8100, Руководство по эксплуатации и обслуживанию, Страница: 37 / 294

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2.4.3 Evaporator Switches, Transducers and Sensors
a. Evaporator Outlet Pressure Transducer (EVOP)
The EVOP is located in the suction line near the evaporator expansion valve. It provides the control system with
evaporator outlet pressure information to be displayed, recorded in the DataLink data recorder and used to
determine the required position of the evaporator expansion valve.
b. Evaporator Outlet Temperature Sensor (EVOT)
The EVOT is a thermistor type sensor located on the suction line near the evaporator expansion valve. It provides
the control system with evaporator outlet temperature information to be displayed, recorded in the DataLink data
recorder and used to determine the required position of the evaporator expansion valve.
c. Evaporator High Temperature Switch (EVHTS)
EVHTS is a safety switch which opens on a temperature rise to de-energize the electric heaters if the temperature
reaches the cut-out point. It is located on the curbside tube sheet of the evaporator coil.
d. Defrost Termination Temperature Sensor (1DTT)
The defrost termination temperature sensor is located on the curbside tube sheet of the evaporator coil. It provides
the control system with evaporator temperature information to be displayed, recorded in the DataLink data recorder
and used to determine termination of defrost.
e. Return Air Temperature Sensor (1RAT)
The 1RAT is a thermistor type temperature control probe which provides the control system with information on the
temperature of the air entering the evaporator section. The reading is displayed, recorded in the DataLink data
recorder and used to control the refrigeration system. It is located on a bracket behind the center of the return air
grille.
f. Supply Air Temperature Sensor (1SAT)
The 1SAT is a thermistor type temperature control probe which provides the control system with information on the
temperature of the air leaving the evaporator section. The reading is displayed, recorded in the DataLink data
recorder and used to control the refrigeration system. It is located in the supply air outlet housing.
2.5 SYSTEM OPERATING CONTROLS AND COMPONENTS
Temperature control is provided by the Carrier Transicold APX™ Control System. Once the system is set at the
desired temperature, the unit will operate automatically to maintain the desired temperature within very close limits.
2.5.1 Multiple Languages
Messages in the MessageCenter can be displayed in English or Spanish. Refer to Section 3.12 for more
information on language selection.
2.5.2 Automatic Start-Stop
Standard equipment includes an auto start-stop feature. This feature provides automatic cycling of the compressor,
which in turn offers an energy efficient alternative to continuous operation with control of temperature by alternate
cooling and heating of the supply air (evaporator outlet air).