129
GMV6 DC Inverter VRF Units Technical Sales Guide
12.2 Notices on using refrigerant
(1) AC project designers and installers shall obey the local laws and regulations on the safety requirement
of the usage and leakage of refrigerant.
(2) The multi VRF unit adopts R410A refrigerant. When installing in the space with people, the refrigerant
amount shall not exceed the max.allowable concentration. Otherwise, suffocation will occur. For
example, the max.allowable concentration for refrigerant of European safety standard and regulation
is 0.44kg/m
3
.
Max. refrigerant charge(kg)= Room volume(m
3
)× max. allowable concentration(kg/m
3
)
Refrigerant charge(kg)= Adding quantity of refrigerant(kg)+ ∑ex-factory charge of ODU(kg)
Refrigerant charge ≤ Max. refrigerant charge
(3) When refrigerant charge has exceeded the max.refrigerant charge, re-design the refrigeration
system and divide the refrigeration system to several refrigeration systems of small volume, or add
corresponding ventilation measures and alarms.
①
The flow when refrigerant is leaking;
②
For the room with leaked refrigerant, as the density of refrigerant is higher than that of air, please
pay attention to the locations which might have refrigerant, e.g basement.
To Next Page
Loading...
Need help?
General