Strategy Guideline: HVAC Equipment Sizing
The heating, ventilation, and air conditioning (HVAC) system is arguably the most complex system installed in a house and is a substantial component of the total house energy use. A right-sized HVAC system will provide the desired occupant comfort and will run efficiently. This Strategy Guideline discusses the information needed to initially select the equipment for a properly designed HVAC system. Right-sizing of an HVAC system involves the selection of equipment and the design of the air distribution system to meet the accurate predicted heating and cooling loads of the house. Right-sizing the HVAC system begins with an accurate understanding of the heating and cooling loads on a space; however, a full HVAC design involves more than just the load estimate calculation - the load calculation is the first step of the iterative HVAC design procedure. This guide describes the equipment selection of a split system air conditioner and furnace for an example house in Chicago, IL as well as a heat pump system for an example house in Orlando, Florida. The required heating and cooling load information for the two example houses was developed in the Department of Energy Building America Strategy Guideline: Accurate Heating and Cooling Load Calculations.
- Publication Date:
- OSTI Identifier:
- Report Number(s):
KNDJ-0-40341-02; TRN: US201206%%67
- DOE Contract Number:
- Resource Type:
- Technical Report
- Resource Relation:
- Related Information: Work performed by IBACOS, Inc., Pittsburgh, Pennsylvania
- Research Org:
- National Renewable Energy Laboratory (NREL), Golden, CO.
- Sponsoring Org:
- USDOE Office of Building Technologies Program
- Country of Publication:
- United States
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 42 ENGINEERING; AIR; AIR CONDITIONERS; AIR CONDITIONING; COOLING LOAD; DESIGN; DISTRIBUTION; FURNACES; HEAT PUMPS; HEATING; HVAC SYSTEMS; OCCUPANTS; RECOMMENDATIONS; SIZE; VENTILATION HEATING VENTILATION AND AIR-CONDITIONING (HVAC) SYSTEM; RIGHT SIZED; WHOLE HOUSE ENERGY USE; EQUIPMENT SELECTION; AIR DISTRIBUTION; Building America; Buildings
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