Electrical Installation; Precautions For Electrical Installation; Specifications Of Power Cord & Circuit Breaker; Wiring Sketch Map - Gree DC Inverter Multi VRF Service Manual

DC INVERTER MULTI VRF

9 ELECTRICAL INSTALLATION

9.1 Precautions for Electrical Installation

Carry out installation according to national cabling rules.
Rated supply voltage and special circuit for air conditioner must be used.
Do not pull the power cables with force.
All the electric installations must be carried out by specialist technicians in accordance with the
local laws, rules and these instructions.
The diameter of power cords must be large enough. The damaged power cords and connection
wires must be replaced with special cords.
The earthing shall be secure. The earthing wire shall be connected to the special earthing device
on the construction. The installation must be done by specialist technicians. The air switch shall
have both the magnetic tripping and thermal tripping functions to ensure protection against the
short circuit and overload.
●Earthing Requirements
The air conditioner belongs to Category I Electric Appliance. Therefore, be sure to take reliable
earthing measures.
The yellow-green wire inside the air conditioner is used for earthing. Do not use it for other
purposes or cut it. Do not fix with tapping screw. Otherwise, it will cause the risk of electric shock.
The earthing resistance shall comply with the national standard GB17790
Reliable earthing terminal must be provided on the user's power supply. Never connect the
earthing wire to the following places:
Water pipe; Gas pipe;
Other places that the specialist technicians think unreliable.
9.2 Specifications of power cord & circuit breaker
Model
GMV(L)-Pd100W/NaB-K
GMV(L)-Pd120W/NaB-K
GMV(L)-Pd140W/NaB-K
GMV(L)-Pd160W/NaB-K
Note The specification of power cord mentioned hereby is defined as the required specification
when wiring with BV single core cable (2 ~ 4 pieces) under the cover of PVC pipe, and ambient
temperature shall be at 40 ; Air switch shall be selected according to 40
and shall in "D" type. if the installation condition on site changed, please consider the modification
on the required specification of Power cord and Air switch, according to the specification manual
provided by manufacture.

9.3 Wiring Sketch Map

9.3.1 Connection of power cord and communication line
The indoor unit and outdoor unit shall be powered separately.
Connection Schematics for Indoor / Outdoor Power Cords and Communication Line (3-phase)
Sewage pipe;
Power supply
circuit breaker
(V,Ph,Hz)
220~240V 50 Hz
220~240V 50 Hz
220~240V 50 Hz
220~240V 50 Hz
Min. sectional
Capability of
area of earth
lead
(A)
(mm
32 6.0
32 6.0
40 10.0
40 10.0
INSTALLATION
Min. sectional
area of power
cord
2 2
) (mm )
6.0
6.0
10.0
10.0
temperature condition,
172