Hi,
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I try to model WLHP and find there are two options?(single/multi-zone?and simplified single zone)?in the SD wizard if I pick water loop as heat pump source.?The two models give me different annual energy?costs.?If I choose the?simplified single zone model, there are no cooling or heating sources under the air-side HVAC system tab. I am not sure what else makes the results different besides the heating/cooling performance curves and system types. Any suggestions are highly appreciated.
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Thanks,
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Shaojie
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