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Question
- Match the following terms with the correct definition.
| Definition | Key Term |
|---|---|
| 1) ____ The airflow rate in cubic feet per minute through a duct system that has been pressurized to 25 pascals. | a) Air Sealing |
| 2) ____ The process of sealing gaps and holes in the overall building envelope that cause drafts and air leaks. | b) Manometer |
| 3) ____ A type of fitting used in HVAC systems to connect ductwork to a vent or register. One end is circular and connects to the ductwork and the other end is rectangular and connects to the vent that faces out into the living space. | c) Air Handler |
| 4) ____ A device used to measure the airtightness of buildings that consists of three components: a calibrated fan that can be used to pressurize or depressurize the building, a device to measure fan flow and building pressure, and a mounting system used to mount the fan in a building opening, such as a door or a window. | d) Trunk |
| 5) ____ A device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system. | e) Duct Tester |
| 6) ____ The process of sealing gaps and holes specifically in the ductwork that cause drafts and air leaks. | f) Duct Boot |
| 7) ____ An instrument used to measure the pressure of gases and vapors. | g) CFM25 |
| 8) ____ The main supply duct coming off the air handler. Smaller ducts branch off from it to supply various rooms in the house, usually running through the ceiling or the basement of the home. | h) Duct Sealing |
| 9) ____ A device used to measure airflow and help detect leaks that consists of three components: a calibrated fan that is used to either pressurize or depressurize the duct, a device to measure fan flow and building pressure, and supplies such as cardboard and tape or adhesive plastic sheeting to seal off the supply and return registers during the test. | i) Blower Door |