FIELD: refrigerants.
SUBSTANCE: invention relates to the use of a refrigerant containing at least about 97 wt.% of the following three compounds, each compound being present in the following relative mass fractions: from 39 to 45 wt.% difluoromethane (HFC-32), from 1 to 4 wt.% pentafluoroethane (HFC-125) and from 51 to 57 wt.% trifluoroiodomethane (CF3I) for replacement of R410A refrigerant in heat transfer systems wherein the heat transfer composition comprises alkylated naphthalene. The invention also relates to a cooling method.
EFFECT: proposed refrigerants are non-flammable.
25 cl, 1 dwg, 30 tbl, 30 ex
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