Thermo King T-1000R Series Maintenance Manual page 26

Electronic Throttling Valve (ETV):
component is an electromechanical control device
used to limit the suction pressure to the
compressor. The valve is controlled by the
microprocessor controller. The ETV is not used if
the unit is equipped with an SPR.
Engine Oil Pressure Switch/Sensor:
oil pressure switch/sensor is located on the filter
head above the bypass oil filter. Engine oil
pressure should rise immediately on starting. If
engine oil pressure drops below 10 ± 2 psig (69 ±
14 kPa), the switch/sensor signals the
microprocessor to stop the engine.
The preheat buzzer sounds when
Preheat Buzzer:
the CYCLE-SENTRY
glow plugs. This should warn anyone near the unit
that the CYCLE-SENTRY
start the diesel engine.
This
The engine
system energizes the
TM
system is about to
TM
Figure 3: T-600R Front View
Figure 4: T-1000R Front View
Coolant Temperature Sensor:
provides an engine coolant temperature input to
the microprocessor. If the engine coolant
temperature is too high, the controller stops the
unit and records an alarm.
Electric Motor Overload Relay (Model 50):
overload relay protects the electric standby motor.
The overload relay opens the circuit from the
contactor to the electric motor if the motor
overloads for any reason and an alarm will occur.
The relay resets when the alarm code is cleared.
Sizes and functions are described in the
Fuses:
Specifications section of this manual.
Unit Description
This sensor
The
AMA1210
AMA1211
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