Carrier 38MBQ Series - Wiring Diagrams (Cont.); 48 K Model Wiring Schematic; Outdoor Unit Main Board Connections (48 K)

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WIRING DIAGRAMS (CONTINUED)
Fig. 7 – Wiring Diagram − Size 48K
Table 7—Outdoor Unit Main Board
CN1,CN3 Power input: 230V AC
CN2,CN4 Output: Power output for DRIVER BOARD (230V AC)
CN5 Input: Communication Main board and IPM Board, Pin1 (5V DC )
CN6 Input: DC FAN motor1 and DC FAN motor2 control, (Pin7 5V DC)
CN8,CN9,CN12 Input: Temperature sensor (5V DC)
CN10 Input: Pressure test (5V DC)
CN15 Output: PMV control，Pin5 (12V DC),Pin6 (12V DC)
CN17,CN18 Output: High voltage for 4-way (SV) control (230V AC)
CN19,CN20 Output: High voltage for HEAT_D control (230V AC)
CN22 Communication to indoor unit,Pin1 (5V DC),Pin3(5V DC)
CN24,CN25 Output: High voltage for HEAT_Y control (230V AC)
CN27、CN32、CN34，
CN28、CN31、CN36
Output: Power output for AC FAN motor1 and AC FAN motor2 (230V AC)
CN39 Output: L2 for AC FAN、SV and HEAT, High voltage (AC)
P-6 Connection to the earth
OUTDOOR UNIT (DRIVER BOARD)
U V W Output: Pulse (0-380VDC) for COMPRESSOR
CN6 ,CN8 Input: Power input for DRIVER BOARD (200-320V DC )
CN3 Output: Connect PFC Inductance, high DC voltage
CN7,CN11 Output: DC FAN motor1 and DC FAN motor2 control (Pin1 310V or 380V DC)
CN9 Output: Communication Main board and IPM Board Pin7 (5V DC )
CN55 Output: Communication IPM Board and Main board Pin1 (12V DC )
CN14、CN15 -- CN39, Output: High DC voltage (310V or 380V DC)