Wiring Diagrams - Carrier 38MBQ Series Service Manual

WIRING DIAGRAMS

PART NAME
CN1,CN2
CN3,CN22
CN4,CN40
CN5,CN6
CN7
CN8,CN33
CN9
CN10,CN44
CN11,CN12
CN20
CN34
CN41,CN42,CN43
P-1
PART NAME
U V W
CN7
CN51,CN52
CN53,CN54
CN55
Fig. 6 – Wiring Diagram Size 36K
Table 6—Outdoor Unit Main Board
Power input: 230V AC
Output: High voltage for 4-way control (230V AC)
Output: High voltage for HEAT_Y control(230V AC)
Output: Power output to DRIVER BOARD (230V AC)
Input: Communication Main board and IPM Board,Pin1(12V DC),Pin2(5V DC )
Input: Temperature sensor (5V DC)
Input: Pressure test (5V DC)
Output: High voltage for HEAT_D control (230V AC)
Output: Pulse(0-380VDC) for DC FAN
Output: PMV control，Pin5(12V DC),Pin6(12V DC)
Communication to indoor unit,Pin1(5V DC),Pin3(5V DC)
Output: Power output for AC fan motor (230V AC)
Connection to the earth
OUTDOOR UNIT (DRIVER BOARD)
Output: Pulse(0-380VDC) for COMPRESSOR
Output: Pulse(0-380VDC) for DC FAN
Output: Connect PFC Inductance, high DC Voltage
Input: Power input for DRIVER BOARD (230V AC)
Output: Communication IPM Board and Main board,Pin1(12V DC),Pin2(5V DC )
8
PART NAME
PART NAME