Pressure/Voltage Characteristics Of Pressure Sensors - Daikin GYEQ20AN Service Manual

SiAUY361411EA
2.2

Pressure/Voltage Characteristics of Pressure Sensors

Fig. 7.1/ Graph of pressure/voltage characteristics of pressure sensors
Pressure (MPa)
Disconnected
Shorted to the
Shorted to the
Maintenance / Service Data
5.00
4.00
3.00
2.00
1.00
0
High pressure sensor
Voltage value (DCV) Pressure (MPa) Voltage value (DCV)
5
0 0.50
1.41 1.52
2.08 2.00
2.82 2.54
4.15 3.50
5
5 V side
0
ground side
High-side pressure
1 2
Output voltage of pressure sensor (DCV)
Low pressure sensor
Disconnected 5
0 0.50
0.84 1.35
1.50 2.03
2.04 2.59
3.33 3.90
Shorted to the
5
5 V side
Shorted to the
0
ground side
Servicing Data
4.15
Low-side pressure
3
Sensor connector No.
Input of 5V Output of 0 to 5V
High-side
pressure sensor
Ground side
Input of 5V Output of 0 to 5V
Low-side
pressure sensor
Ground side
Input of 5V Output of 0 to 5V
Shorted to the 5V side
Pressure sensor
Ground side
Shorted to the ground side
3.33
025962-00E
Main circuit board
(3) Red
(1) Green
(2) Black
Main circuit board
(6) Red
(4) Yellow
(5) Black
025963-00E
Main circuit board
025964-00E
226