What Constitutes Sound Ductwork Design?

What Constitutes Sound Ductwork Design?

Your Monmouth County home’s central heating and cooling system relies on a system of air ducts to circulate the heated and cooled air throughout your indoor environment. Proper ductwork design helps HVAC equipment run more energy efficiently to maintain comfortable temperatures throughout your home.

If you are having a new home constructed or refitting an existing home, now is the time to make sure the correct ductwork design principles are employed to ensure you have the most efficiently operating HVAC system.

Ductwork Design Objectives

You want a system of air ducts that provide economical HVAC operation, proper airflow distribution, economical ductwork installation and ideal comfort. The ductwork system includes the metal air ducts, fittings, grilles, boots, registers, and the supply and return assemblies. What is the ideal outcome of the retrofitting or installation process?

  • Ductwork capable of providing conditioned air that meets all household heating and cooling loads.
  • Air ducts are correctly sized to ensure that the pressure drop across the air handler remains within manufacturer specifications.
  • The ducts have been properly insulated and sealed to prevent outside, unconditioned air from entering your household.
  • Supply and return airflows are properly balanced to maintain a neutral household pressure.
  • The system minimizes air temperature losses and gains. It is necessary to maintain control of temperature discrepancies between the air handler and the return and supply registers. Whenever temperatures vary too high or too low here, it decreases air duct efficiency, lowers household comfort and increases home energy costs.

Key Installation and Refitting Factors

To reach the above objectives, your HVAC technician should apply the following methods:

  • Install air ducts in conditioned areas of the home to reduce heat gain and loss.
  • Design ducts to be short, leading to the most efficient placement of supply registers on interior walls.
  • Air seal the entire ductwork system to prevent energy leaks.
  • Use the Air Conditioning Contractors of America’s (ACCA) Manuals D, J and S to best size air ducts to meet your household’s correct heating and cooling loads.

To learn more about implementing proper ductwork design objectives, contact New Jersey experts at Aggressive Mechanical Contractors, Inc.

Our goal is to help educate our customers in Monmouth County, New Jersey and surrounding areas about energy and home comfort issues (specific to HVAC systems). For more information about ductwork design and other HVAC topics, download our free Home Comfort Resource guide.

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