Table of Contents
Advertisement
2. FUNCTION OF PRINTED CIRCUIT BOARD
2-1 PCB LAYOUTS
2-1-1 Indoor Unit Control Circuit Board
DIP-SW
Rotary SW
AUXB, AU A, ARXB, ARXA, AB A
CN22 CN21
CN27
CN23 CN24
1 Forbidden
Forbidden
2
SW 1
3 Room temp correct coefficient of heating 1
4 Room temp correct coefficient of heating 2
1 Room temp correct coefficient of cooling
Forbidden
2
SW 2
3 Refrigerant type
4 Auto restart validity / invalidity
1 Forbidden (Indoor unit fan speed switch 1)
2 Forbidden (Indoor unit fan speed switch 2)
SW 3
3 Forbidden (Indoor unit fan speed switch 3)
4 External input select edge / pulse
1 Forbidden (Indoor unit model code)
2 Forbidden (Indoor unit model code)
SW 4
3 Forbidden (Indoor unit model code)
4 Forbidden (Indoor unit model code)
1 Wireless remote controller custom code switch 1
2 Wireless remote controller custom code switch 2
SW 5
3 Outdoor unit series setting
4 Draft prevention setting switch
SW 6
Indoor unit address switch 1
SW 7
Indoor unit address switch 2
SW 8
Refrigerant circuit address switch 1
SW 9
Refrigerant circuit address switch 2
SW 10
Remote controller address switch
SW10
SW9
SW8
SW3 SW4 SW5
SW6
SW7
SW1
SW2
AS A18-30, AW A
CN24
CN23
CN22
SW9
SW5
CN21
SW7
SW6
SW8
SW10
02-01
SW3
SW1
SW2
SW4
Advertisement
Table of Contents
Troubleshooting
