ACXA73-3129* : 4-Way Cassette Type (Type U3) Indoor Unit Control Board
TEST Pin
CHK Pin
RC
EEPROM
OPTION
DISP Pin
ACXA73-3440* : Middle Static Pressure Duct Type (Type F3) Indoor Unit Control Board
5
TEST Pin
CHK Pin
RC
EEPROM
OPTION
DISP Pin
5-2-1-14