Hi Everyone! I we prepare advisory analysis for HVAC project design in Poland. Our goal is to reduce LCC of HVAC components. We use Carrier HAP and IES.

The thing that we want to analyse is a comparison of VRF units by different providers. As example Provider A is more expencive than Provider B. Looking for ESEER, EER or COP factors Provider A is sometimes also worse. So based on such fact Provider B is reasonable solution, but based on already installed equipments the result is opposite because such factors do not show whole year operation. We want to prepare LCC analysis that can precisely compare VRF A and VRF B. The question is what data we need to obtain from providers and which software we need to use. Investment cost are of course not a problem. Additional costs as maintenance is hard to estimate and we skip them. We only want to compare energy use. Many thanks in advance!