Electric Connection Requirement - Gree GVH24AK-K3DNC8A Service Manual

Service Manual
● Adopt cooper pipe sold in the market:
The cut-off valve of outdoor unit shall be closed completely.
After the connection is connected with the indoor unit and
outdoor unit, perform discharge from the maintenance port of
low pressure cut-off valve at outdoor unit. After discharging,
screw up the nut at maintenance port.
● After finishing the three points mentioned above:
The valve rod of outdoor cut-off valve should be opened
completely to ensure smoothness of connection pipe between
indoor unit and outdoor unit.
electric coil (prevent water from
getting into the electric box)
watertight bend (prevent rain from
getting into the indoor side)
Note:
When the outdoor unit is installed higher than the indoor unit,
an oil return bend must be adopted.

8.5 Electric Connection Requirement

Safety Precaution:
1. Must follow the electric safety regulations when installing the
unit.
2. According to the local safety regulations, use qualified power
supply circuit and air switch.
3. The air switch must have the functions of magnetic tripping
and heat tripping in order to prevent short circuit or overload.
Please install the air switch with suitable capacity according to
the sheet below.
Model
24K
4. Make sure the power supply matches with the requirement
of air conditioner. Unstable power supply or incorrect wiring
may result in electric shock, fire hazard or malfunction.
Please install proper power supply cables before using the air
conditioner.
5. Properly connect the live wire, neutral wire and grounding
wire of power socket.
Installation and Maintenance
method of
unbinding
coil make
the pipe
end straight
seal the wall hole with sealing gum
oil return bend
Capacity of air switch
25A
6. Be sure to cut off the power supply before proceeding any
work related to electric safety.
7. Do not put through the power before finishing installation.
Grounding requirement:
1. The air conditioner is first class electric appliance. It must
be properly grounded with specialized grounding device by a
professional. Please make sure it is always grounded effectively,
otherwise it may cause electric shock.
2. The yellow-green wire in air conditioner is grounding wire,
which can't be used for other purposes.
3. The grounding resistance should comply with national electric
safety regulations.
Pay attention to the following items when connecting wires:
1. Please do the wiring according to the wiring diagram. The
screws must be tightly fastened, the slippery screws must be
changed, the tapping screw cannot be used for electric wiring.
2. Use the cables provided with the unit. Do not replace the
cables or change the length or terminal of cable. If a change is
needed, please contact appointed maintenance center.
3. After the electric installation completed, make sure to use
wire clamp to fix the power cord, power supply connection wire
and signal wire tightly, and ensure that there is enough space in
the fix position and each connection terminals of the lead wires.
4. Please use about a half kilogram of force to check whether
each lead wire is installed well. When checking the air
connector, please enclasp it, and check each lead wire of which
is connecting with the connector.
5. is the symbol of grounding; it denotes that the yellow-
green wire only can be connected with the place with the
symbol.
6. For the power cord which is without the plug, you cannot
connect the plug for using.
7. The electric connection of indoor and outdoor should not be
affected by the stretch and bending.
8. Specialized circuit must be used for power supply.
9. Please do the wiring according to the wiring diagram sticking
on the unit.
10. The primary coil of control circuit transformer shall be
connected to the power supply of 220V. Detail satiation please
refer to the wiring diagram.
11. For the floor standing type air conditioner using three
phase power supply, the phases shall be connected properly.
If the phases are connected wrongly or phase reverse occurs,
the protector in the control circuit will take protection and the
compressor can't start up. In this case, please cut off the power
supply and exchange the connection of any two phase wires,
then the unit will operate normally.
Simple installation diagram, please
refer to the wiring diagram for details.
power supply
circuit breaker
(air switch)
power cord
power connection
wire
outdoor unit
indoor unit
grounding
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