Electric Wiring Work; Wiring Principle; Electric Wiring Design - Gree FGR20/BNa-M Service Manual

Duct Type Split Air Conditioner
Service Manual

4 ELECTRIC WIRING WORK

4.1 Wiring Principle

All of the supplied components, material, and electric operation should be accorded with the local
principles.
1). The power supply should adopt the rated voltage and special circuit for the ducted air-conditioning
unit.
2). About the electric working, please refer to the "circuit diagram" adhering to the unit.
3). All the connection of the circuit should be carried out by the qualified electrician.
4). A circuit breaker that can cut all the power supply of the system should be installed. Wiring diagram of
the ducted air-conditioning unit is shown in Fig. 32.
5). The units should be well earthing to the ground by professionals.
6). Install a central switch which can cut all the power switch and air switch of the system.
7). The air switch should have hot and magnetic auto-turn-off function to protect the system from
overloading or short power.
8). Please accord to electrical diagram on the unit when connecting the wires.
Open indoor electric box and outdoor electric box respectively and put the wires cross the electric boxes.
Please choose the specification of the power cables according to the power capacity and the installation
conditions of the unit. Fix the wires with wire clamp and assemble the electric cover after confirmation.
The wiring schematic of the outdoor and indoor unit, please refer to inferior Fig, while the power cord
standard and air-switch type, please refer to recommending table.

4.2 Electric Wiring Design

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FG(R)20/BNa-M