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I am simulating two storey building with VRF system having 14 thermal zones. I used 6 TR rated cooling capacity system that is downloaded from BCL, which gives more unmet hours. Then I increased the rated cooling capacity of the same system, the number of unmet hours reduced. Then I replaced that with 8 TR VRF system downloaded from BCL, it consumes lesser energy than the 6 TR system. I want to know whether this is correct or not? Thanks in advance.

I am simulating two storey building with VRF system having 14 thermal zones. I used 6 TR rated cooling capacity system that is downloaded from BCL, which gives more unmet hours. Then I increased the rated cooling capacity of the same system, the number of unmet hours reduced. Then I replaced that with 8 TR VRF system downloaded from BCL, it consumes lesser energy than the 6 TR system. I want to know whether this is correct or not? Thanks in advance.