The results are in. Hvac contractor came in with a list of recommendations from 3rd party home performance consultant.
Upgraded trunks, on both supply and return. Roughly 25%. 1650’ 2 story. Static pressure on high was 0.81” pre install and 0.74” on medium. Post install is 0.74” on high and 0.65 on medium.
Looks to me like the undersized branches are the issue!!!
Upgraded trunks, on both supply and return. Roughly 25%. 1650’ 2 story. Static pressure on high was 0.81” pre install and 0.74” on medium. Post install is 0.74” on high and 0.65 on medium.
Looks to me like the undersized branches are the issue!!!
source https://hvac-talk.com/vbb/showthread.php?2222794-Post-Contractor-modifications-to-system-results&goto=newpost
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