Hello!
I'm simulating a building with an air conditioning area of 1,860.3 m2. The actual air conditioner system consists of 34 Ductless Mini Splits of different power, most of them with COP = 2.9 w / w and the total power of the evaporators is 173,951 BTU. I validated the result of the simulation with the split system with the monthly electricity consumption of the building and it was ok (1-5% of difference). So, I proposed to change these system for an VRF. I picked the following models of LG (using the building component library of NREL): ARNU - 288TE4 (COP = 3.34), 264DTE4 (COP = 3.37), 312BTE4 COP = 3.3), 144BTE4 (COP = 3.54) and 096BTE4 (COP = 4.03). The total capacity of the internal units is now 118,000 BTU. Finally, I would like to know if the result of 62.36% annual less power consumption is reasonable or if these are too much ?(maximum monthly consumption difference 66,62% and minimal monthly consumption difference 29,37%). The city has an Humid subtropical climate.
