AHU-KIT
33
5 Wire Connection
①
Units must be earthed securely, or it may cause electric shock.
②
Please carefully read the wiring diagram before carry out the wiring work, incorrect wiring could
cause malfunction or even damage the unit.
③
The capacity of power supply should be big enough.
④
The unit should be powered by independent circuit and specific socket.
⑤
The wiring should be in accordance with related regulations in order to ensure the units reliable
running.
⑥
Install circuit breaker for branch circuit according to related regulations and electrical standards.
⑦
All wiring must use pressure terminal or single wire. Multi-twisted wire that connects directly to the
wiring board may cause fire hazard.
⑧
Keep cable away from refrigerant piping, compressor and fan motor.
⑨
Do not alter the inner wires of air conditioner. Manufacturer does not assume responsibility for
damage or abnormal operation due to this reason.
⑩
If the unit is installed in places with strong electromagnetic interference, it's recommended to use
twin-twisted shield wire. During wire connection, please pay attention that the metal shield layer of
the twin-twisted wire must be grounded(outer case) in order to prevent the unit from electromagnetic
interference.
⑪
The communication wires should be separated from power cord and connection wire between
indoor unit and outdoor unit.
⑫
The appliance shall be installed in accordance with national wiring regulations
⑬
For security
，
it is suggested that the exposed wires of EXV and temperature sensors wrapped in
insulated tubes for good isolation.
5.1 Connect Cables and Terminals of Wiring Board
(1) Connection of Wire and Patch Board Terminal (as shown in fig.5.1.1)
1) Strip about 25mm insulation of the wire end by stripping and cutting tool.
2) Remove the wiring screws on the terminal board.
3) Shape the tail of wire into ring by needle nose plier, and keep the gauge of ring in
accordance with screw.
4) Use the screwdriver for tightening the terminal.
(2) The connection of stranded wire (as shown in fig.5.1.2)
1) Strip about 10mm insulation of the end of stranded wire by stripping and cutting tool.
2) Loosen the wiring screws on terminal board.
3) Insert the wire into the ring tongue terminal and tighten by crimping tool.
4) Use the screwdriver for tightening the terminal.
