외기(OA), CN2 ,  GREEN,  U1(15~18),MCU (PB.12,PB.13,PB.14,PB.8)
공청(AIR), CN10, YELLOW,  U4 (11~14), MCU (PD.14,PD.7, PD.6,PB.3)
바이패스(BYPASS), CN5, RED,  U2 (15~18), MCU (PA.6,PA.14,PA.15,PC.8)
배기(EA), CN3,  BLACK,  U1(11~14), MCU (PB.15,PC.14,PC.15,PC.6)
급기(SA), CN7, BLUE,  U2(11~14), MCU (PC.9,PC.10,PC.11,PB.9)
환기(RA), CN9, WHITE,  U4(15~18), MCU (PB.10,PC.2,PC.3,PD.15)