WebReturn air openings for heating, ventilation and air-conditioning systems shall comply with all of the following: 1. Openings shall not be located less than 10 feet (3048 mm) measured in any direction from an open combustion chamber or draft hood of another appliance located in the same room or space. 2. WebInterlocked make-up air damper systems meet IRC Code requirements for make-up air with range hoods over 400 CFM Interlocked make-up air systems avoid wasted energy associated with barometric solutions and do not let unwanted air into the home during heating or cooling activities so air pressure is equalized for a well-balanced environment
What Is Make-Up Air - gambrick.com
WebR403.6, the Washington State Energy Code adopted the ventilation requirements of the International Residential Code (IRC) (see IRC Chapter 15 Section M1505.4, “Whole-house mechanical ventilation ... Note: The International Mechanical Code does require make-up air for kitchen fans exceeding 400 cfm. WebM1503.6.2Makeup air dampers. Where makeup air is required by Section M1503.6, makeup air dampers shall comply with this section. Each damper shall be a gravity damper or an electrically operated damper that automatically opens when the exhaust system operates. high noon madison wi
Outdoor Air Intake Damper Controlled - PNNL
WebMar 19, 2024 · In 2009, the International Residential Code (IRC) was amended to require makeup air to be provided for any kitchen exhaust fan that exceeds 400 cubic feet per … WebInterlocked make-up air damper systems meet IRC Code requirements for make-up air with range hoods over 400 CFM; Interlocked make-up air systems avoid wasted energy associated with barometric solutions and do not let unwanted air into the home during heating or cooling activities so air pressure is equalized for a well-balanced environment; WebThe air removed by every mechanical exhaust system shall be discharged to the outdoors in accordance with Section M1504.3. Air shall not be exhausted into an attic, soffit, ridge vent or crawl space. Exception: Whole-house ventilation -type attic fans that discharge into the attic space of dwelling units having private attics shall be permitted. high noon meaning