Heating, Ventilation and Air-Conditioning (HVAC)（加热、通风和空调(暖通空调)）.pdf

HVAC 9 Heating, Ventilation and Air-Conditioning (HVAC) Energy Code Requirements The energy requirements of the building code that apply to HVAC instal- lations (ECCCNYS Section 503) are in addition to any plumbing, mechan- ical, and fuel gas codes that apply to these systems. Although it is gener- ally the HVAC installer’s responsibility to follow these requirements, 9 because they are in the building code it may be up to the builder to know what they are and to communicate them to the subs for a given project. HVAC Here’s a summary of the HVAC requirements. Remember that these requirements generally apply to all residential buildings, but more com- plex mechanical systems typically found in multifamily residences may have to meet additional requirements—see ECCCNYS Section 503 for more detail. • Heat loss calculations and system sizing (ECCCNYS 503.3.1 and Chapter 3)—Heating and cooling load calculations must be done according to a specified process. Air Conditioning Contractors of America (ACCA) Manual J (see Appendix B for ordering information) is required by the 2000 IRC One and Two Family Dwelling Code (see Section M1401.3). The design parameters used for these calculations are given in ECCCNYS Chapter 3. • HVAC system efficiencies—The minimum efficiency requirements for HVAC systems are given in ECCCNYS 503.2. Note that code min- imums for efficiency follow federal minimum efficiency standards. See following table and the next bullet for more information. 69 HVAC Equipment