United Technologies Carrier Transicold 69UG15, Операция и обслуживание

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3–5 T-360
2. Units with Auto Start, Low Coolant Sensor:
When the ignition switch (IGN) is placed in the RUN position, 12-volt DC power is applied to the low coolant
sensor (LCS), if applicable, and the auto restart module simultaneously. If the coolant level is below the sen-
sor, all the indicator lights on the auto restart module will blink once and the LCS will open the contacts on
the low coolant relay, de-energizing the unit’s 12-volt DC circuitry. If the coolant level is above the sensor, the
auto restart module will maintain power and all lights on the module will illuminate. As the auto restart mod-
ule performs its self test, the lights will go out individually.
After the self test is complete, the auto restart module will energize the intake heater and sound the audible
alarm warning, indicating that the unit has been powered on and will start. The 30-second delay starts at this
time. When the 30-second delay expires, power will be applied to the electronic governor and the engine
attempts to crank for 15 seconds.
When the engine starts, the intake heater will remain energized for 3 minutes; during this time, the engine/
intake heater light and alarm will be energized, the shutdown/lockout time delay of 15 seconds will begin
counting, and the starter will be disengaged. During the shutdown/lockout time delay at start up, the auto
restart module will disregard the signals to the oil pressure and engine temperature inputs, and the Run
sequence will begin. If engine does not start, refer to
Table 2–2 for auto restart sequencing.