Electric Wiring - Gree GMV-144WM/B-U Owner's Manual

GMV DC Inverter VRF
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kg/m .
The maximum amount of refrigerant (kg) in the system = The volume of the room (m
maximum allowed concentration level of refrigerant (kg/m
Total amount of refrigerant (kg) in the system = Total additional charging amount (kg) +
Amount of refrigerant (kg) which is charged before leaving the factory (for the system
consisting of multiple modules in parallel, the accumulative charge quantity of modules before
leaving the factory is used)
Total amount of refrigerant (kg) in the system ≤The maximum amount of refrigerant (kg) in
the system
（3）When the total amount of refrigerant in the system is more than the maximum amount
of refrigerant, the cooling system should be designed again. In this case, the cooling system
can also be separated into several cooling systems with small capacity, or add corresponding
ventilation measures or alarming display.
① Flow direction of refrigerant leakage.
② Room for refrigerant leakage. Since the concentration of refrigerant is greater than that of
air, pay attention to the spaces where the refrigerant may residue, for example, the basement.

4.5 Electric Wiring

4.5.1 Wiring precautions
(1) Wiring should conform to national rules. All the parts, materials, electric work should be in accordance
with local codes.
(2) Rated voltage and exclusive power supply should be used.
(3) Power cord should be fixed soundly and reliable. Never forcibly pull the power cord.
(4) Wire size of power cord should be large enough. The damaged power cord and connecting wire should be
replaced by exclusive cable.
(5) All the electrical work should be performed by professional personnel as per local law, regulation and this
manual.
(6) Connect the unit to the special earthing device and make sure the unit is earthed soundly.
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Fig. 4.4.3
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