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[1-3 Working with Refrigerant Piping ]
1-3-4
Refrigerant Charging
Cylinder with a siphon
Cylin-
der
Cylinder color R410A is pink.
1. Reasons
R410A is a pseudo-azeotropic HFC blend (boiling point R32=-52°C[-62°F], R125=-49°C[-52°F]) and can almost be handled
the same way as a single refrigerant, such as R22. To be safe, however, draw out the refrigerant from the cylinder in the liquid
phase. If the refrigerant in the gaseous phase is drawn out, the composition of the remaining refrigerant will change and be-
come unsuitable for use.
2. Notes
When using a cylinder with a siphon, refrigerant is charged in the liquid state without the need for turning it upside down. Check
the type of the cylinder on the label before use.
If the refrigerant leaks out, it may be replenished. The entire refrigerant does not need to be replaced. (Charge refrigerant in
the liquid state.)
Refer to the following page(s).[8-14 Measures for Refrigerant Leakage](page 311)
HWE13080
Valve
liquid
- 14 -
Cylinder without a siphon
Cylin-
der
Refrigerant charging in the liquid state
Valve
liquid
GB
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