[10] Changing Refrigerant
R410A must be in a liquid state when charging.
For a cylinder with a syphon attached
Cylin-
der
Cylinder color identification
Reasons :
1.
R410A is a pseudo-azeotropic refrigerant (boiling point R32 = -52˚C, R125 = -49˚C) and can roughly be handled
in the same way as R22; however, be sure to fill the refrigerant from the liquid side, for doing so from the gas
side will somewhat change the composition of the refrigerant in the cylinder.
Note :
•
In the case of a cylinder with a syphon, liquid R410A is charged without turning the cylinder up side down. Check the
type of cylinder before charging.
[11] Remedies to be taken in case of a refrigerant leak
When refrigerant leaks, additional refrigerant may be charged. (Add the refrigerant from the liquid side.)
✻Refer to 9-[5].
R407C-Gray
R410A-Pink
Valve
Liquid
- 15 -
For a cylinder without a syphon attached
Cylin-
der
Charged with liquid refrigerant
Liquid
Valve