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DC Inverter Side Discharge VRF Ⅱ for North America
7 Electric Wiring
(1)
All electrical installation must be performed by qualified technicians in accordance with local laws,
regulations and this user manual.
Use air conditioner specialized power supply and make sure that it is consistent with system's rated
(2)
voltage.
(3)
Do not pull the power cord with force.
(4)
Caliber of the power cord must be large enough. A damaged power cord or connection wire must be
replaced by specialized electrical cords.
Connect the unit to specialized grounding device and make sure it is securely grounded. It's a must
(5)
to install air switch and current circuit breaker that can cut off the power of the entire system. The air
switch should include magnetic trip function and thermal trip function so that system can be
protected from short circuit and overload.
(6)
Air conditioner belongs to class I electrical appliance, so it must be securely grounded.
(7)
The yellow-green wire inside the unit is a ground wire. Do not cut it off or secure it with tapping
screws, otherwise it will lead to electric shock.
(8)
Power supply must include secure grounding terminal. Do not connect the ground wire to the
following:
①Water pipe; ②Gas pipe; ③Drain pipe; ④Other places that are deemed as not secure by
professional technicians.
7.1 Wiring Diagram
（1）Connection of power cord and communication wire
Separate power supply for Indoor and Outdoor
Fig.24 Connection of power cord and communication wire for IDU and ODU
（2）The wiring diagram for power cord of outdoor unit and communication wire.
83
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