Thermo King 098916, Руководство по обслуживанию

Страница: 127 / 196

Electrical Maintenance
126
Figure 70: Temperature Sensors
Temperature Sensors
Thermistor type temperature sensors are used.
Each sensor is connected to a cable and placed in
a sealed stainless steel tube. The temperature
signal from the sensor is transmitted through the
cable. Temperature sensors include:
• Supply Air, Left Hand
• Supply Air, Right Hand
• Return Air
• Evaporator Coil
• Condenser Coil
• Compressor Discharge Temperature Sensor
• Ambient Air
Installing Temperature Sensors
All sensors should be properly installed as
follows:
• Supply air sensors must be inserted to the
bottom of the sensor tube and completely
sealed by the grommet connection.
• Left hand supply sensor installs in the sensor
tube on the left side of the RH sensor tube.
• Right hand supply sensor installed in the
sensor tube on the right side of the LH sensor
tube.
• Return air sensor installs in a grommet
between the evaporator fans.
• Evaporator coil (defrost) sensor must be
placed in the middle of the coil and 75 mm
deep between the fins.
• Condenser sensor must be placed on the upper
left side of the condenser coil and 70 mm deep
between the fins.
• Ambient sensor must be placed on the bottom
plate of the right forklift pocket.
• Compressor discharge temperature sensor is
attached to compressor head by adhesive. See
“Compressor Discharge Temperature Sensor
Replacement” in the chapter for Refrigeration
System Diagnosis and Service.
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AJA1980