Spec Sheet

16
Fig. 10 – Wiring Diagram 38/40MAQ18 (208- 230V)
INDOOR UNIT CONTROL BOARD
INPUT or OUTPUT VALUE
L_IN Power Voltage ：AC 230V
CN11 Power Voltage ：AC230V
CN16 Relative to the N terminal voltage：DC 24V
CN15 Maximum voltage：DC5V
CN6 Maximum output voltage ：AC230V
CN4 Indoor fan interface,Maximum voltage：DC310V
CN5 Stepper motor interface,Maximum voltage between the lines：DC12V
P_1 Ground
CN8 Room temperature sensor interface,maximum voltage：DC5V
CN9 Pipe temperature sensor interface,maximum voltage：DC5V
CN10A Display interface,maximum voltage between the lines：DC5V
CN14 Stepper motor interface (optional),maximum voltage between the lines：DC12V
OUTDOOR UNIT CONTROL BOARD
INPUT or OUTPUT VALUE
CN7、CN8 Input: 230V High voltage
CN2 Output: Connection of the high voltage
CN3、CN4 Output: High voltage for 4 - way control
CN11、CN16 Output: 230V High voltage for HEATER
CN5 Output: Pulse(0- 320V) for DC FAN
CN12、CN13 Output: Connection of the high voltage
UVW Output: Pulse(0- 320V) for compressor
CN10 Input:Pin1 (5V) Pin2(0 - 5V)
CN1 Input:Pin3- 4 (5V) Pin2(0V),Pin1,Pin5(0 - 5V)
CN18 Output:Pin5&6(12V) Pin1- Pin4:Pulse waveform,(0 - 12V)