131 PB
COMPONENTS TESTING
24k Outdoor Main Printed Circuit Board
NO. Description NO. Description
1 12AC Power Computer Monitor
2 13 DC Power
7-Segment display
3 DC fan 14
4
Compressor Overheat Protection Switch
IPM-SI 15 Low Pressure Switch
5 16Signal to filter board
High Pressure Switch
6 1715V & 5V Power
7 SI-N 18
Liquid C/Gas C Sensor
8 SI-C 19
Discharge/defrost/Coil/Suction/Ambient
Sensor
9 SI-B 20
Liquid A/Gas A/ Liquid B/Gas B Sensor
Electronic Expansion Valve A
10 21SI-A
Electronic Expansion Valve B
EE Program11 22
Electronic Expansion Valve C
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