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Instructor: HVAC system sizing should be based on a building—s envelope, not just room count
Summary
Steve Hanson, an HVAC instructor at Coconino Community College, told meeting attendees that proper HVAC sizing depends on the building envelope nd its components (windows, insulation, age, and code) so equipment can replace BTU losses to maintain occupant comfort.
Steve Hanson, an HVAC instructor at Coconino Community College, said system sizing should be based on the building—s envelope rather than solely on individual rooms or equipment labels. "So system sizing is based on the envelope," Hanson said, describing factors technicians consider when determining heating and cooling loads. Hanson said technicians assess window construction (single-, double- or triple-pane and whether panes are argon-filled),…
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