Haier Unitary smart series Service Manual page 158

Condition for the PCB data:
1.Working ambient temperature: 10
2.Preserved ambient temperature: 20
3.Power supply:220VAC 50/60Hz voltage range:160V 250V
4.Precise of temperature control: 1
0010451167E 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 with fixed frequency single outdoor unit: 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)
CN4 input port 3 of transformer (1-2 14VAC 3-4 12VAC)
CN5 input control, connecting port to wired controller: CONTROLLER three bits: 1. power supply:
12VAC, 2. power supply: 0VAC, 3. communication: COMM. .
CN6 input control, ambient temp.-coil temp. sensor connecting port: ROOM/PIPE 1-2 ROOM 3-4
PIPE
Indoor ambient temp. sensor: R25=23K +-2.5% B25/50=4200K+-3% range: -40 80
Indoor coil temp. sensor: R25=10K +-3% B25/50=3700K+-3% range: -20 90
CN7 control external load, fresh air control: FRESH 1. blank, 2. power supply 0VDC, 3. control output:
12VDC.
CN8 input signal: FREEZE no use
CN9 input control no use
CN10 communication with fixed frequency single outdoor unit: (0~12VDC)
CN11 input signal, door switch: DOOR 1-2 short circuit is normal, cut off P8 output
CN12 input signal, external alarm input: ALARM 1-3 short circuit is normal, if cut off, air conditioner
stops work.
Note: For convertible type, cassette type, duct type units, CN11 and CN12 must be in short circuit, or
PCB will display failure information.
CN13 input signal, wiring port of remote receiver board: RECEIVE BOARD 1. power supply 5VDC, 2.
power supply 0VDC, 3. remote signal, 4. signal output of running lamp 0VDC, 5. signal output of timer lamp
0VDC,6. signal output of power lamp 0VDC, 7. signal output of water pump running lamp 0VDC
CN14 control external load, auto elevating function
elevating direction control 0VDC, 3. output of elevating power control 0VDC, 4. power supply 12VDC
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70 , relative humidity:30% 95%
80 relative humidity 30% 95%
1. signal of door switch close, 2. output of
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