Abstract： |
The refrigerant used to replace R22 or R502 in air conditioner, heat pump and refrigerator contains 1,1,1,2,3,3,3-heptafluoro propane other than two components of methane difluoride and 1,1,1,2-tetrafluoro ethane. It has no damage to ozone hayer and has high excellent thermal performance and thermal parameters. Compared with available substitute, it has superior environment performence and less green-house effect or smaller GWP value, and it may be used to replace R22 or R502 through direct filling without altering the main parts in equipment and production line. |
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