User Manual

18
Electrical Installation
1. Wire layout
 Install the wires according to the national standard;
 The power cord should be fixed reliably lest the connecting terminal would be stressed.
Do not pull the power cord forcibly;
 The 1.5 mm
2
wire harness is recommended for the power cord. If the power cord or
connection wire is damaged, replace it using a special cable;
 Only professionals can complete all the electrical installation operations according to
the local laws and regulations and this manual;
 Grounding should be reliable; be sure to ask a professional to connect the wires to a
special grounding device for the building;
 Cut off the air switch and leakage switch of power supply for the entire system before
installation;
 The air switch should have the magnetic release and thermal release functions at the
same time to ensure protection in case of short circuit and overloading;
 Field wiring is subject to the electrical principle diagram attached to the unit body;
 If the power cord is damaged, to avoid dangers, make sure to ask the manufacturer,
after-sales service department or a professional to replace it;
 Reserve a longer length of the ground wire when connecting the power cord, lest the
connecting terminal would be stressed.
2. Grounding requirements
 Adopt reliable grounding measures. The yellow and green wire in the unit is the
ground wire for motor. Do not use it for other purposes or cut it off. Do not use a self-
tapping screw to fix the ground wire; otherwise an electric shock may be caused.
 The grounding resistance should meet the requirements of national standard
GB17790.
 The user's power supply must be grounded reliably. Do not connect the ground wire to
the following positions: