1981.1 Indoor unit Dip Switch SettingAB25S2SC1FA AB35S2SC1FA AB50S2SC1FAPCB 0151800244A dip switch setting BM1BM1-1 BM1-2 BM1-3 BM1-4 BM1-5 BM1-6 BM1-7 BM1-8 DescriptionOFF OFF OFF --- --- --- --- --- 1Hp Indoor UnitON OFF OFF --- --- --- --- --- 1.2Hp Indoor UnitOFF ON OFF --- --- --- --- --- 2Hp Indoor UnitON ON OFF --- --- --- --- --- 3Hp Indoor UnitOFF OFF ON --- --- --- --- --- 3.5Hp Indoor UnitON OFF ON --- --- --- --- --- 4Hp Indoor UnitOFF ON ON --- --- --- --- --- 5Hp Indoor UnitON ON ON --- --- --- --- --- 6Hp Indoor Unit--- --- --- OFF --- --- --- --- Room Card Unavailable(Default)--- --- --- ON --- --- --- --- Room Card Available--- --- --- --- OFF --- --- --- Heat Pump(Default)--- --- --- --- ON --- --- --- Cooling Only--- --- --- --- --- OFF --- --- Fresh Air (Default)--- --- --- --- --- ON --- --- External Alarm Output--- --- --- --- --- --- OFF --- Without Filter Clean Remind (Default)--- --- --- --- --- --- ON --- With Filter Clean Remind--- --- --- --- --- --- --- OFF ReservedPCB 0151800244A dip switch setting BM3BM3-1 BM3-2 BM3-3 BM3-4 DescriptionOFF OFF OFF OFF ReservedBM3-5 BM3-6 BM3-7 BM3-8 Address of Wire Controlled Indoor UnitOFF OFF OFF OFF Master Unit(Default)OFF OFF OFF ON 1# Slave UnitOFF OFF ON OFF 2# Slave UnitOFF OFF ON ON 3# Slave UnitOFF ON OFF OFF 4# Slave UnitOFF ON OFF ON 5# Slave UnitOFF ON ON OFF 6# Slave UnitOFF ON ON ON 7# Slave UnitON OFF OFF OFF 8# Slave UnitON OFF OFF ON 9# Slave UnitON OFF ON OFF 10# Slave UnitON OFF ON ON 11# Slave UnitON ON OFF OFF 12# Slave UnitON ON OFF ON 13# Slave UnitON ON ON OFF 14# Slave UnitON ON ON ON 15# Slave Unit