Haier AC142ACBEA Service Manual page 48

0010451167 PCB information – port and definition
P1——connect to external power supply, live line: L (220VAC)
P2——connect to external power supply, neutral line: N (0VAC)
P3、4、5、6——control external load, neutral line: N1、N2、N3、N4(0VAC)
P7——control external load, electrical heat: HEAT (control output 220VAC)
P8——control external load, health function: OXYGEN (control output 220VAC)
P9——control external load, humidification: HUMI (control output 220VAC)
P10——control external load, SWING(control output 220VAC)
P11——control external load, WATER PUMP(control output 220VAC)
P12——control external load, indoor fan motor low speed: L(control output
220VAC)
P13——control external load, indoor fan motor mid speed: M(control output
220VAC)
P14——control external load, indoor fan motor high speed: H(control output
220VAC)
P15 — — communication
COMM(0~220VAC)
P16——input control, signal live line: L'(220VAC)
P17——input control, signal neutral line: N'(0VAC)
CN1——input port of transformer (220VAC)
CN2——input port 1 of transformer (no use)
CN3——input port 2 of transformer (no use)
with fixed frequency single outdoor unit: