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Condition for the PCB data:
1.Working ambient temperature:ˉ10ć̚70ć, relative humidity:30%̚95%
2.Preserved ambient temperature:ˉ20ć̚80ćˈrelative humidity˖30%̚95%
3.Power supply:220VACǃ50/60Hzˈvoltage range:160V̚250V
4.Precise of temperature control:r1ć
0010451167E PCB information – port and definition
P1üüconnect to external power supply, live line: L (220VAC)
P2üüconnect to external power supply, neutral line: N (0VAC)
P3ǃ4ǃ5ǃ6üücontrol external load, neutral line: N1ǃN2ǃN3ǃN4(0VAC)
P7üücontrol external load, electrical heat: HEAT (control output 220VAC)
P8üücontrol external load, health function: OXYGEN (control output 220VAC)
P9üücontrol external load, humidification: HUMI (control output 220VAC)
P10üücontrol external load, SWING(control output 220VAC)
P11üücontrol external load, WATER PUMP(control output 220VAC)
P12üücontrol external load, indoor fan motor low speed: L(control output 220VAC)
P13üücontrol external load, indoor fan motor mid speed: M(control output 220VAC)
P14üücontrol external load, indoor fan motor high speed: H(control output 220VAC)
P15üücommunication with fixed frequency single outdoor unit: COMM(0~220VAC)
P16üüinput control, signal live line: L’(220VAC)
P17üüinput control, signal neutral line: N’(0VAC)
CN1üüinput port of transformer (220VAC)
CN2üüinput port 1 of transformer (no use)
CN3üüinput port 2 of transformer (no use)
CN4üüinput port 3 of transformer (1-2ǃ14VACˈ3-4ǃ12VAC)
CN5üüinput control, connecting port to wired controller: CONTROLLER˄three bits: 1. power supply:
12VAC, 2. power supply: 0VAC, 3. communication: COMM.˅.
CN6üüinput control, ambient temp.-coil temp. sensor connecting port: ROOM/PIPE˄1-2ǃROOMˈ3-4
ǃ
PIPEDŽ˅
Indoor ambient temp. sensor: R25=23K¡+-2.5%ˈB25/50=4200K+-3%ˈrange:˄-40ˈ80˅
Indoor coil temp. sensor: R25=10K¡+-3%ˈB25/50=3700K+-3%ˈrange:˄-20ˈ90˅
CN7üücontrol external load, fresh air control: FRESH˄1. blank, 2. power supply 0VDC, 3. control output:
12VDC.˅
CN8üüinput signal: FREEZE˄no use˅
CN9üüinput control˄no use˅
CN10üücommunication with fixed frequency single outdoor unit: (0~12VDC)
CN11üüinput signal, door switch: DOOR˄1-2 short circuit is normal, cut off P8 output˅
CN12üüinput 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.
CN13üüinput 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˅
CN14üücontrol external load, auto elevating function ˄1. signal of door switch close, 2. output of
elevating direction control 0VDC, 3. output of elevating power control 0VDC, 4. power supply 12VDC˅
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