15 Energy utilization and conservation การใช้และการอนุรักษ์พลังงาน
15.1 Energy standards and codes มาตรฐานพลังงานและรหัส
It must be recognized that use of energy studies and conservation techniques is no longer optional on the part of the HVAC designer, contractor, or operating personnel. Standards have been developed that have already been adopted as part of almost all state building codes. No one can successfully practice in the HVAC industry without a reasonable knowledge of this subject. ASHRAE Standard 90.1, Energy Efficient Design of New Buildings is widely used by HVAC designers as a basis for building energy use standards, as well as a basis for many state building energy codes.