Samsung FH18BTA(X) - Circuit Descriptions; PCB Circuit Descriptions

Power,Ventilator
Indoor Fan Part(TAP)
External Control Out
External Control In
Wired Remote Controller Power(12V)
485 Communication Part(F3/F4)
485 Communication Part(F1/F2)
Temperature Sensor Part
– Room Temperature
– Evap. In Temperature
Indoor Rouver Stepping Motor
Display Part
Option & Address Set S/W
1-9
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9. Circuit Descriptions
9-1 PCB Circuit Descriptions
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9-1-1 Indoor Unit
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FH18BTA1