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MAINTENANCE
2.6 Pressure Sensor
(1) Position of Pressure Sensor
Model: 3HP~3.5HP Model: 4HP~6.5HP
Model: 7HP~12HP
(2) High Pressure Sensor
The high pressure during operation is detected by a high pressure sensor, and compressor frequencies
are controlled by the proportional controlling method with operating capacity of indoor units (or PID Control
for Compressor Frequency) so that the high pressure is controlled in an appropriate range. The output
characteristics of the high pressure sensor are as follows.
Output Characteristics of High Pressure Sensor Output Characteristics of Low Pressure Sensor
(3) Low Pressure Sensor
The low pressure during operation is detected by a low pressure sensor for protecting excessive increase/
decrease. The output characteristics of the low pressure sensor are as below.
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