Electric Wiring - Gree Ultra Heat GMV Multi VRF Series Owner's Manual

Ultra Heat GMV Multi VRF
(3) Calculate the maximum refrigerant concentration of the refrigeration system.
Note: If the maximum supported refrigerant concentration is not available in relevant local standard,
use 0.3kg /m³ (0.66lbs/m³) as the maximum supported refrigerant concentration.
(4) If the maximum refrigerant concentration exceeds the allowed threshold, the refrigeration
system must be redesigned. In this case, separate the refrigeration system into multiple small-capacity
refrigeration systems, or contact local Gree sales company.
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.

4.6 Electric Wiring

4.6.1 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.
(7) Air switch and circuit breaker is required to be set. Air switch should have both magnetic trip and thermal trip
functions so as to protect the unit when short-circuit and overload happens. D-type breaker is advised to be used.
(8) Wiring diagram attached on the unit is prevailed.
4.6.2 Wiring of power cord
Every unit should have corresponding short-circuit and overload protection. And also a main switch
Fig.31
WARNING
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