Standard Parts; Product Installation; Safety Precautions For Installing, Repairing And Moving Units - Gree GMV-224WM/G-X Owner's Manual

GMV DC Inverter VRF

2.5 Standard Parts

Please use the following standard parts supplied by Gree.
Number Name
1 Owner's Manual
Wiring (match
2
with resistance)
3 L-shape pipe

3 Product Installation

3.1 Safety Precautions for Installing, Repairing and Moving Units

(1) The unit should not be installed in places with high environmental pH, high voltage
fluctuations, vehicles and ships.
(2) Do not touch the fins of the heat exchanger. Improper touch can cause damage or injury.
(3) Do not mix any substances except the refrigerant when installing or moving the refrigerant
circuit, and do not leave any air in the pipe. If air or other substances are mixed in the
refrigerant circuit, the system pressure will rise and it will cause compressor explosion.
(4) Do not charge the refrigerant other than the specified one when installing or moving the unit.
Otherwise, it may cause problems such as poor operation, malfunction, mechanical fault, etc.,
and even cause major safety accident.
(5) When moving or repairing the unit, be sure to use the pressure gauge. First, perform the
cooling operation, and then completely close the high pressure side valve (liquid valve).
When the pressure gauge reads 0~0.05MPa, completely close the low pressure side valve
(air valve), and then immediately stop operation and cut off the power.
(6) When recovering the refrigerant, it is necessary to ensure that the connection pipe can be
disassembled only after the liquid valve and the air valve are completely closed and the power
is turned off. If disassembling the connection pipe when the power hasn't been cut off and
the compressor still running, the air will be mixed into the system and then the pressure will
rise, which will cause compressor explosion.
(7) When installing the unit, make sure that the connection pipe is securely connected before
turning on the compressor. If the compressor is turned on before the connection of the
connection pipe is completed and the shut-off valve is opened, the air will be mixed into the
system and then the pressure will rise, which will cause compressor explosion.
(8) Wiring between indoor unit and outdoor unit must be properly connected by adopting the
specified electric wires and the terminals should be fixed well and not affected by external
forces. Poor connection or fixing may cause a fire accident.
(9) No connection is allowed in the middle of the wire. When the length of the connection wire is
not enough, please contact the designated service store to re-equip a dedicated electric wire
with sufficient length.
Parts for Outdoor Unit
Picture
8
Quantity Remarks
—
1
Must be connected to
the last IDU of
1
communication
connection
Used for connecting
1
pipes