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6-3. Indoor Print Circuit Board
<MCC-1403>
Drain pump
output
Power transformer
(Primary side)
(AC240V)
Optional
power supply
AC fan output
EXCT
Filter/Option error input
TA sensor
Float SW
∗ Short plug is inserted
∗1 No function
Outside
error input
TCJ sensor
TC sensor
CHK
DISP
Used for servicing
Optional output
Remote controller
power supply LED
Remote controller
inter-unit wire
EEPROM
Microcomputer
operation LED
Power transformer (Secondary side)
(AC11V, 14V, 20V)
Power supply