Green Building Tip: Test Your HVAC System


Posted On Dec 16 2019 by

first_imgEven well-designed mechanical systems can become sources of indoor air quality problems (or can waste energy) if they are incorrectly installed, so it’s important to make sure heating and cooling systems work as designed before the house is occupied. It’s critical to test the systems (including duct work) before anyone moves into the house. That’s almost always cheaper than dealing with the equipment after problems become obvious.This testing — sometimes called “commissioning” — should follow the “TAB” approach: test, adjust, balance.For homes with a forced-air system, it’s essential to check:Air flow at each registerOverall duct system tightnessAir flow over the coilRefrigerant chargeIt’s also essential to check the combustion efficiency of the furnace or boiler burner; to check exhaust fan air flow; and to check ventilation system air flow.—_This GREEN BUILDING TIP is from our Strategy Generator. Build a tip sheet for your green building or remodeling project under the Strategies & Details tab._ Green PointsLEED for Homes: 3 points for minimizing distribution losses in ducts (EA 5).NGBS/ICC-700: 3 points for verifying performance of HVAC equipment (704.5.3).FURTHER RESOURCES#Green Building Encyclopedia:Forced AirAir ConditioningHeat DistributionBlogs:Duct Leakage TestingHeating a Tight, Well-Insulated House How Heat Moves Through HomesIt’s the Little ThingsQ&A Forum:HVAC for Tight Envelope Houseslast_img

Last Updated on: December 16th, 2019 at 11:17 am, by


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