Daikin VRV II Series, Design, Installation & Testing Instructions, Page: 230 / 242

Precautions for New Refrigerant (R410A) Si39-303
224 Precautions for New Refrigerant (R410A)
1.2 Refrigerant Cylinders
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Cylinder specifications
2
The cylinder is painted refrigerant color (pink).
2
The cylinder valve is equipped with a siphon tube.
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Handling of cylinders
(1) Laws and regulations
R410A is liquefied gas, and the High-Pressure Gas Safety Law must be observed in
handling them. Before using, refer to the High-Pressure Gas Safety Law.
The Law stipulates standards and regulations that must be followed to prevent accidents
with high-pressure gases. Be sure to follow the regulations.
(2) Handing of vessels
Since R410A is high-pressure gas, it is contained in high-pressure vessels.
Although those vessels are durable and strong, careless handling can cause damage that
can lead to unexpected accidents. Do not drop vessels, let them fall, apply impact or roll
them on the ground.
(3) Storage
Although R410A is not flammable, it must be stored in a well-ventilated, cool, and dark place
in the same way as any other high-pressure gases.
It should also be noted that high-pressure vessels are equipped with safety devices that
releases gas when the ambient temperature reaches more than a certain level (fusible plug
melts) and when the pressure exceeds a certain level (spring-type safety valve operates).
Refrigerant can be charged in liquid state with cylinder in
upright position.
Caution: Do not lay cylinder on its side during charging, since
it cause refrigerant in gas state to enter the system.
Siphon tube
Cylinder