02-03
2-1-2 Outdoor Unit Control Circuit Board
CN52CN50
CN49
CN48
SW1 SW2 SW4SW3
SW5 SW6 SW10SW7
LED1
SW9 SW8
LED2
LED3
LED4
LED5
LED6
Outdoor unit control circuit board
SWITCH POSITION
1 Test run (Cooling)
2 Test run (Heatling)
3 Pump down operation
4
1 Silent operation mode
2 Snow falling protection fan mode
3 Sequential start shift switch 1
4 Sequential start shift switch 2
1 Outdoor unit capacity switch 1
2 Outdoor unit capacity switch 2
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
3
4 Error reset
Forbidden
Forbidden
1 Cooling capacity shift switch 1
2 Cooling capacity shift switch 2
3 Heating capacity shift switch 1
4 Heating capacity shift switch 2
1 Pipe length switch 1
2 Pipe length switch 2
3 Forbidden
4 Forbidden
1 System type switch 1
2
3 Indoor unit small capacity switch
Forbidden
4 Forbidden
1 Forbidden
2 Forbidden
3 Forbidden
4 Forbidden
Refrigerant circuit address switch 1
Refrigerant circuit address switch 2