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2-1-2 Outdoor Unit Control Circuit Board
1 Test run (Cooling)
2 Test run (Heatling)
SW 1
3 Pump down operation
Forbidden
4
1 Silent operation mode
2 Snow falling protection fan mode
SW 2
3 Sequential start shift switch 1
4 Sequential start shift switch 2
1 Outdoor unit capacity switch 1
2 Outdoor unit capacity switch 2
SW 3
3 Outdoor unit address setting switch 1
4 Outdoor unit address setting switch 2
1 Number of slave unit connection 1
2 Number of slave unit connection 2
SW 4
3
Forbidden
4 Error reset
DIP SW
1 Cooling capacity shift switch 1
2 Cooling capacity shift switch 2
SW 5
3 Heating capacity shift switch 1
4 Heating capacity shift switch 2
1 Pipe length switch 1
2 Pipe length switch 2
SW 6
3 Forbidden
4 Forbidden
1 System type switch 1
2
Forbidden
SW 7
3 Indoor unit small capacity switch
4 Forbidden
1 Forbidden
2 Forbidden
SW 10
3 Forbidden
4 Forbidden
SW 8
Refrigerant circuit address switch 1
Rotary SW
SW 9
Refrigerant circuit address switch 2
SW1
SW5
LED4
LED5
LED6
SW2
SW3
SW4
SW6
SW7
SW10
LED1
SW9 SW8
LED2
LED3
CN52CN50
02-03
CN49
CN48
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Troubleshooting
