Integrated
Integrated
(700-
(700-
3
3
T
T
ALL)
ALL)
Series
Series
Electronic Control System
3-11
#3758412 - Revision B - December, 2006
Monitor, Regulate and Display Compartment Temperatures
The temperature signal from the compartment thermistor is monitored by the microprocessor and then displayed on
the LCD. Though the compartment air temperature does fluctuate, the LCD displays the average temperature (See
Figure 3-19). When the compartment temperature reaches high offset, the microprocessor supplies power to the
compressor and evaporator fan (See Figure 3-20). As the compressor and evaporator fan run, the compartment
temperature drops. When the compartment temperature reaches low offset, the microprocessor interrupts power to
the compressor and evaporator fan, cycling them off.
NOTE: If the average compartment temperature changes, the temperature displayed on the LCD will change by one
degree per minute.
Figure 3-19. Average Compartment Temperature Displayed
Compartments
calling for cooling
(Temp. above high offset)
Compressors and
evaporator fans
energized
Figure 3-20. 700TC/I-3 Signal Trace Schematic (High & Low Voltage) of Regulating Temperatures
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