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Hi All,<div><br></div><div>I'm trying to model a simple VAV system with DX and a HW loop, as per 90.1 Appendix G System #5. However, despite having (all auto-sized) preheat (to 55F), heating coils and baseboard heating the indoor air still runs 10F less than the heating setpoint - in the low 60s - and I have at least 100 unmet hours in each winter month (for Toronto, by the way). I literally used the default settings for a VAV system from the DD Wizard and added more heating capabilities (because the space was WAY underheated before that). </div><div><br></div><div>Any advice would be greatly appreciated.</div><div><br></div><div>Thanks in advance,</div><div>Liam O'Brien</div> </div></body>
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