Non-azeotropic mixed refrigerant and the refrigeration cycle apparatus

2009 
Non-azeotropic mixed refrigerant containing tetrafluoropropene a high-boiling refrigerant and a non-azeotropic refrigerant circulated in a refrigeration cycle containing tetrafluoropropene a high boiling-point refrigerant, the low-pressure circuit becomes a negative pressure the providing refrigeration cycle apparatus that prevented. Non-azeotropic mixed refrigerant, the low-voltage circuit up to the compressor from the pressure reducing device, the mixing ratio of the high-boiling-point refrigerant and a low boiling-point refrigerant as a saturated vapor line to be pressure 0.00MPa is -45 ° C. or less characterized in that it is determined.
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