Gree GMV6 VRF, Руководство пользователя

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c. If all fresh air indoor units are mixed with the general VRF indoor units, charge the refrigerant
according to the refrigerant-charging method of the general indoor unit.
For example 1
：
Outdoor unit consists of one 28kW module and one 45kW module. Five 14kW duct type units are used
as indoor units.
IDU/ODU rated capacity collocation ratio C=14.0×5/(28.0+45.0)=96%. The quantity of included
IDUs is more than 4 sets. Please refer to the above table.
Additional refrigerant quantity B for 28kW module is 2.0 kg.
Additional refrigerant quantity B for 45kw module is 4 kg.
So, ∑Refrigerant charging amount B of every module=2.0+4=6 kg.
Suppose the Pipeline charging amount A=∑Liquid pipe length × refrigerant charging amount of every
1m liquid pipe=20kg.
Total refrigerant charging amount R=20+6=26kg.
For example 2:
Outdoor unit is a 45kW module and the indoor unit is a 45kW fresh air unit. The quantity (B) of
refrigerant added to this module is 0kg.
So, ∑Refrigerant charging amount B of every module= 0kg.
Suppose the Pipeline charging amount A=∑Liquid pipe length × refrigerant charging amount of every
1m liquid pipe = 5kg.
Total refrigerant charging amount R = 5+0=5kg.
Modular combination of outdoor unit subjects to combinations that is currently available.
12
NOTICES
12.1 Safety notices
(1) The unit should not be installed in places with high pH, high voltage fluctuations, vehicles and ships.
(2) Do not touch the fins of the heat exchanger. Improper touch can cause damage.
(3) Do not mix other substance apart from refrigerant in the refrigerant circuit during installing or moving
the unit, and do not leave any air in the pipe. If air or other substances are mixed, the system pressure
will rise, the compressor will burst and damage will occur.
(4) Don’t seal the non-specified refrigerant when installing or moving the unit, otherwise, it might cause
poor operation, malfunction, mechanical breakdown, etc, or even cause major safety accidient.
(5) When moving the unit or repairing the recycled refrigerant, be sure to use the pressure gauge.
Conduct the cooling operation first, then completely shut down the valve (liquid valve) at high pressure
side. When the pressure gauge display 0
～
0.05MPa, completely shut down the valve (gas valve) at
low pressure side and immediately stop running and cut off the power.
(6) When recovering the refrigerant, please make sure to completely shut down the liquid valve and
gas valve, and cut off the power before dismantling the connection pipe; otherwise, there will be air
intrusion, resulting in pressure rise of the system, if the compressor is burst, it will cause damages.
(7) When installing the unit, make sure that the connection pipe is securely connected before starting the
compressor. If the compressor is started before the connection pipe is connected and when the cut off
valve is started, there will be air intrusion, resulting in pressure rise of the system, if the compressor is
burst, it will cause damages.
(8) Wiring between indoor and outdoor units must be correctly connected with the specified wires, and
the wiring terminal shall not be affected by external forces. Poor connection or fixing might cause fire
accident.
(9) No connection is allowed in the middle of the wire. When the length of the connecting wire is not
enough, please contact the designated service store to re-equip a dedicated wire of sufficient length.