รายละเอียดเอกสาร

Residential common systems for space conditioning of both single-family space conditioning is concerned with the most (i.e., traditional site-built and modular or manufactured homes) and low-rise multifamily residences, which generally follow single-family practices because site constraints favor compact designs. HVAC systems in high-rise apartments, condominiums, and dormitory buildings are often of commercial types similar to those used in hotels. Retrofit and remodeling construction typically adopt the same systems as those used in new construction, due to the lower cost of reusing existing electrical, air distribution, and controls infrastructure, but major internal or envelope reconfigurations that affect building loads, new equipment efficiency regulations, or occupant comfort preferences may call for unique designs. Residential system design and equipment selection vary with both local and application factors. Energy source availability and price (present and projected), climate, socioeconomic circumstances, and availability of skilled installers and maintenance technicians all affect distribution of equipment in local markets. Housing type, siting, construction characteristics, and building codes further solidify the range of practical system selection. As a result, many different systems can be selected to provide combinations of heating, cooling, humidification, dehumidification, ventilation, and air filtering for residential applications.