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进行了三元非共沸混合制冷剂R407C在房间空调器中替代HCFC22的理论与试验研究，经过初步的优化之后，对两台试验样机所作的试验研究的结果表明：R407C的性能与HCFC22相当，可以作为HCFC22的直接替代制冷剂。
The theoretical and experimental researches on replacing ternary non-azeotropic refrigerant R407C with HCFC22 in room air conditioners were carried out. After preliminary optimization, the experimental results of two experimental prototypes show that the performance of R407C is equivalent to that of HCFC22, HCFC22 can be used as a direct alternative refrigerant.