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US 2015/0144833 A1Published application
Refrigerant gas composition
AssigneeEco D'Gas AS
InventorCharles P. McKenna
Life of this patent
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Abstract
Present invention relates to a refrigerant composition comprising tetrafluorethane, difluoromethane and pentafluoroethane for use in heating and cooling applications, especially for inverter air-conditioners/heat pumps.
Claims6
A refrigerant composition comprising a mixture of
- from 90 to 97.5 wt % of tetrafluorethane and
- from 2.5 to 10 wt % of a mixture of difluoromethane and pentafluoroethane.
Dependencies are inferred from the claim text.