38MGR-04SM Specifications subject to change without notice. 21
WIRING DIAGRAMS (CONT)
Size 48K
Table 17 — 48K - 5 Zone Max
Table 18 — 48K - 5 Zone Max
Table 19 — 48K - 5 Zone Max
Table 20 — 48K - 5 Zone Max
OUTDOOR UNIT MAIN BOARD
CODE PART NAME
CN1~CN3 Input: 230VAC High voltage
CN13,CN16,CN21,CN29,CN37 Output: Pin1 (Connection of the high voltage) “S” Pin2~Pin3 (230VAC High voltage) “L1 & L2”
P5,P6,P9 Connection to the earth
CN22 Output:-24VDC-24VDC
CN17~CN18 Output: 230VAC High voltage to 4 way valve
CN19~CN20 Output: 230VAC High voltage Compressor Crankcase Heater
CN24~CN25 Output: 230VAC High voltage Chassis Crankcase Heater
CN11 Input: Pin1, Pin3, Pin5, Pin7, Pin9 (5VDC) Pin2, Pin4, Pin6, Pin8, Pin10 (0-5VDC) indoor pipe out sensor
CN12 Input: Pin1 (0-5VDC), Pin2 (5VDC) Heatsink Temperature Sensor
CN8 Input: Pin1 (0-5VDC), Pin2 (5VDC) Compressor top sensor (PAIQI)
CN9 Input: Pin3, Pin4 (5VDC), Pin2 (0VDC), Pin1, Pin5 (0-5VDC) Pipe sensor and ambient sensor
CN15,CN23,CN26 CN30,CN33 Output: Pin1-Pin4: Pulse waveform (0-12VDC), Pin5, Pin6 (12VDC) to EEV
CN6
Communication: Pin1-Pin6: Pulse waveform(0-5VDC), Pin7, Pin9 (0VDC) Pin8 (0-5VDC), Pin10 (5VDC)--to
IPM&PFC board
CN2~CN4 Output: 230VAC High voltage to IPM & PFC Board
CN10 Input: Pin2, Pin4 (0VDC), Pin1, Pin3 (0-5VDC)--H/L Pressure switch
OUTDOOR UNIT PFC AND IPM BOARD
CODE PART NAME
CN1~CN6 Output: 224-380VDC High voltage
CN2~CN6 Output: 224-380VDC High voltage
CN3~CN6 Output: 224-380VDC High voltage
U~V~W Connect to compressor voltage among phases 0~200VAC
CN9
Communication: Pin1-Pin6: Pulse waveform (0-5VDC), Pin7, Pin9 (0VDC), Pin8 (0-5VDC), Pin10 (5VDC) to
the main board
FAN1
Output: Pin1~Pin2: High voltage (224-380VDC),Pin4 (0-15VDC) Pin5 (0-5.6VDC), Pin6: Pulse waveform (0-
15VDC) to drive board
OUTDOOR UNIT DC MOTOR DRIVER BOARD
CODE PART NAME
CON1 Output: Pin1~Pin2: High voltage (224-380VDC)
CN1 Input: Pin4: Pulse waveform (0-15VDC), Pin3 (0-6.5VDC) Pin2 (0VDC),Pin1 (15VDC)
FAN1 Pin1-Pin3:Connect to FAN voltage among phases 0~200VAC
FAN2 Pin1-Pin3:Connect to FAN voltage among phases 0~200VAC
CODE PART NAME
COMP COMPRESSOR
CAP1,CAP2 FAN MOTOR CAPACITOR
CT1 AC CURRENT DETECTOR
D DIODE MODULE
EEV ELECTRONIC EXPANSION VALVE
FM1, FM2 OUTDOOR DC FAN
FAN1,FAN2 OUTDOOR AC FAN
HEAT CRANKCASE HEATING
H-PRO HIGH PRESSURE SWITCH
L PFC INDUCTOR
L-PRO LOW PRESSURE SWITCH
KM AC CONTACTOR
SV 4-WAY VALVE
TP EXHAUST TEMPERATURE SENSOR
T3 CONDENSER TEMPERATURE SENSOR
T4 OUTDOOR AMBIENT TEMPERATURE SENSOR
TH HEATSINK TEMPERATURE SENSOR
PAIQI COMPRESSOR TOP SENSOR (GAS PIPE)
CH 1, CH 2, CH 3 FERRITE BEAD
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