Outdoor Unit Control Pcb - Panasonic U-26PE1U6 Technical Data & Service Manual

2-5. Outdoor Unit Control PCB

(1) Layout Diagram (CR-CH4872R)
Suction temperature (TS) sensor
Heat exchanger temperature (C1) sensor
Heat exchanger temperature (C2) sensor
MDC
Outdoor air temperature (TO) sensor
Compressor discharge temperature (TD) sensor
2-9
2-9
2. Processes and functions
2. Processes and functions
EEPROM IC
Refrigerant recovery switch
(S005)
Quiet mode plug (CN028)
Refrigerant System
address switch (S002)
EXCT plug (CN026)
Automatic address
setting switch (S001)
Snowfall sensor
Refrigerant System
address switch (S003)
Cooling test
Test pin (CN036)
Operation circuit fuse
(F002)
Serial 1 plug
Power LED (D115)
LED 1, 2
Terminal plug (CN015)
Serial 2 plug
If the operation circuit fuse
(F002) has blown,
determine and correct the
cause for the blown fuse,
then change the socket
from the serial 1 plug to
the serial 2 plug.
Position detection plug
(CN003)
Fan motor plug (CN004)
2