Daikin RX36MY1 [84/255] Pressure sensor

Daikin RX44MYL [84/255] Pressure sensor
Method of Troubleshooting SiE30-408
80 Troubleshooting
3.2.2 Pressure Sensor
1. Voltage Measuring Point
When the color of harness is not as mentioned above, find the measuring point by following
procedure.
1. Black is GND.
2. Find DC5V line.
3. The remained wire is the sensing section.
(For the same pressure, higher output voltage can be detected with low-pressure sensor,
while lower output voltage detected with high pressure sensor.)
Outdoor PC board
(Blue)
+5V
LP pressure sensor
Red
Black
Green
White
Micro control
A / D input
Measure voltage (DC) between these pins.
Outdoor PC board
Connector for high-pressure sensor
(Red)
+5V
LP pressure sensor
Red
Black
Green
White
Micro control
A / D input
Measure voltage (DC) between these pins.

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