Haier 1U71S2SG1FA Service Manual

Also see for 1U71S2SG1FA: Installation manual Service manual Installation manual

Contents

1912.Wiring Method• Wiring method of orbicular terminalsFor the connection wire with orbicular terminals, its wiring method is as shown inthe right figure: remove the connecting screw, put the screw through the ring on theend of the wire, thenconnect to the terminal block and fasten screw.• Wiring Method of Straight Terminals.For the connection wire without orbicular terminals, its wiring method is: loosen theconnection screw, and insert the end of the connection wire completely into theTerminal block, then fasten the screw.Slightly pull the wire outwards to confirm it is firmly held.• Crimp connection method for wires without terminals.• Crimp Connection Method For Connection WireAfter connection, the wire must be fastened by wire cover. The wire cover shall press on the protection coat of theconnection wire, as shown in right top figure.Note:When connecting the wiring, confirm the terminal number of indoor and outdoor units carefully.Incorrect wiring will damage the controller of air conditioner or the unit can not operate.3. Wiring Method Of Outdoor Unit:Remove the cover of terminal box and clamp.• Power LineConnect respectively the live wire, neutral wire, ground wire to the L/N on terminal block and grounding screw onmetal sheet.• Communication Line between Indoor & OutdoorE.g. Connect respectively the terminal 1/2/3/GND of Indoor B to the 1/2/3 on Terminal B and grounding screw onmetal sheet of Outdoor.Max. 5 indoor units for 5U outdoor and the rest outdoors follow the same logic.Reinstall the clamp and cover of terminal box according to the Installation Manual, after the connection above-mentioned doneNote: Power cord and communication wire are provided by consumers themselves.