Sanyo XH4272R / CH4272R User Manual

II-9

SM831148

Fan motor plug (CN004)

EEPROM IC

MDC

Heat exchanger temperature (C2) sensor

Heat exchanger temperature (C1) sensor

Suction temperature (TS) sensor

Outdoor air temperature (TO) sensor

Compressor discharge temperature (TD) sensor

Refrigerant recovery switch 
(S005)

Quiet mode plug (CN028)

EXCT plug (CN026)

Automatic address 
setting switch (S001)

Snowfall sensor

Cooling test

Test pin (CN036)

Operation circuit fuse 
(F002)

LED 1, 2

Serial 1 plug

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)

Refrigerant System 
address switch (S002) 

Refrigerant System 
address switch (S003) 

Power LED 
(D115)