Events

    Healthy HVAC Design Primer for Residential Building Professionals, Wednesday, September 9, 2020

  • 9 September 2020
  • Event Host : Half Moon Seminars
HVAC Design Primer for Residential Building Professionals
Event Description

Join Allison Bailes III, PhD, for a full day session to learn about healthy residential HVAC design.  

You will be able to explain healthy home principles and how they are achieved through HVAC recommendations found in ACCA Manuals J, S, D and T. Calculate room-by-room heating and cooling loads for homes and describe how homes can be divided into zones to efficiently meet heating and cooling needs. Use heating and cooling load calculations to make residential heating and cooling equipment choices and sizing decisions. Reference and comply with ACCA Manuals J and S procedures for single and multiple zone systems. Consider air resistance in ducts and fittings, and get tips on sizing registers and grilles.

  • Host Company/Organization Name
    • Half Moon Seminars
  • Agenda
    • HVAC Design for Healthy Homes
      Healthy homes principles
      Residential HVAC design protocols: ACCA Manuals J, S, D, and T
      Manual J overview
      What is heat?
      Principles of heat transfer
      Sensible and latent heat
      Heat transfer equations


      Calculating Room-by-Room Heating & Cooling Loads
      Indoor and outdoor design conditions
      The health impacts of relative humidity
      Unconditioned and conditioned spaces
      Dividing the house into zones
      Building enclosure details
      Internal loads


      Understanding Heating and Cooling Load Calculation Results
      Residential heating and cooling equipment choices
      Manual S overview for forced air heating and cooling equipment
      Selecting cooling equipment – air conditioner or heat pump
      Sizing systems and using variable capacity systems
      Getting the right air flow
      Using manufacturers’ expanded performance data


      Selecting a Furnace
      Balance point and supplemental heat for heat pumps


      Review of Manual J and Manual S Procedures
      Manual D overview
      Single and multiple zone systems
      Laying out the duct system for healthy air flow
      Static pressure and velocity pressure
      Total external static pressure
      Available static pressure


      Air Resistance in Ducts and Fittings
      Equivalent length of fittings
      Total effective length of the critical path
      Friction rate
      The effect of air velocity


      Manual T Overview
      Sizing registers and grilles
      Cleaning the air with high-MERV filters
      Mechanical ventilation for a healthy home
  • Speakers / Presenters
    • Allison A. Bailes III, PhD

      Allison Bailes founded and runs Energy Vanguard, a small firm that does residential HVAC design, building science consulting, training and quality assurance. He also writes the Energy Vanguard Blog, which gets millions of views each year. Mr. Bailes has built a highperformance home out of structural insulated panels, run a home performance company and worked as regional manager for the EarthCraft House green building program. Having earned a PhD in Physics from the University of Florida, he has a strong background in the growing field of building science. He is on the board of directors for the Passive House Institute US (PHIUS), and he is a member of ASHRAE. Mr. Bailes is a juggler and a skier as well as having the honor of being the only man included in Who’s Who of American Women.
  • Event type
    • Webinar

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