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I have a lot of zones with heating unmet load hours. Does anyone have any guidance on how to reduce them? I'm using EnergyPro 9, so I have to get rid of these hours to issue the certificate of compliance. I have many fan coil units serving one zone each, and about half of them also have terminal VAV boxes. Heating plant is a natural gas hot water boiler. I tried oversizing FCU and VAV box heating capacities and airflows, but not much changed.

I have a lot of zones with heating unmet load hours. Does anyone have any guidance on how to reduce them? I'm using EnergyPro 9, so I have to get rid of these hours to issue the certificate of compliance. I have many fan coil units serving one zone each, and about half of them also have terminal VAV boxes. Heating plant is a natural gas hot water boiler. I tried oversizing FCU and VAV box heating capacities and airflows, but not much changed.