Haier HCFU-18CF03 [81/91] Commercial air conditioner

Haier HCFU-28CF03 [81/91] Commercial air conditioner
Condition for the PCB data:
1.Working ambient temperature:ˉ10ć70ć, relative humidity:30%95%
2.Preserved ambient temperature:ˉ20ć80ćˈrelative humidity˖30%95%
3.Power supply:220VACǃ50/60Hzˈvoltage range:160V250V
4.Precise of temperature control:r1ć
0010451167 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, if there is outdoor PCB, electrical heat: HEAT (control output 220VAC); if
there is not outdoor PCB, compressor control function(control output 220VAC).
P8üücontrol external load, if there is outdoor PCB, health function: OXYGEN (control output
220VAC); if there is not outdoor PCB, 4-way valve control(control output 220VAC).
P9üücontrol external load, if there is outdoor PCB, humidification: HUMI (control output 220VAC); if
there is not outdoor PCB, outdoor fan motor control(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˄1-2, ROOM, 3-4,
PIPE.˅
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
CN9üüinput control˄no use˅
CN10üücommunication with fixed frequency single outdoor unit: (0~12VDC)
CN11üüinput signal, outdoor pressure switch control function (for the unit without outdoor PCB)
CN12üüinput signal, external alarm input: ALARM˄1-3 short circuit is normal, if cut off, air
conditioner stops work.˅
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
Commercial Air Conditioner Model: HCFU-18/28CF03
HCFU-18/28HF03
81

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