Abbreviations and Acronyms

• AFUE - annual fuel utilization efficiency
• AHJ – authority having jurisdiction
• AHRI – American Heating and Refrigeration Institute
• AHVAC – air-side HVAC
• ANSI – American National Standards Institute
• ASHP – air-source heat pump
• ASHRAE – American Society of Heating, Refrigerating and Air-Conditioning Engineers
• BBREC – baseline building regulated energy cost
• BBUEC – baseline building unregulated energy cost
• BHP – brake horsepower
• CF – compliance form
• CFM – cubic feet per minute
• CHP – combined heat and power
• CV – constant volume
• DCV – demand control ventilation
• E_c - combustion efficiency
• ECB – Energy Cost Budget Method described in ASHRAE Standard 90.1 Section 11 in 90.1 2016 and 2019 and Section 12 in 90.1 2022
• EFLH – effective full load hours
• E_t - thermal efficiency
• ERV – energy recovery ventilator
• DOAS – dedicated outdoor air system
• HVAC – Heating, Ventilation and Air Conditioning
• IECC – International Energy Conservation Code
• IESNA – Illuminating Engineering Society of North America
• LE – lighting, exterior
• LI – lighting, interior
• ML – miscellaneous loads
• OA – outdoor air
• PA – permit applicant
• PCI – performance cost index
• PCI_t – performance cost index target
• PRM – Performance Rating Method described in ASHRAE Standard 90.1 Appendix G
• PRM RM – Performance Rating Method Reference Manual
• PV – photovoltaic panels
• SG – Simulation, General
• SWH – service water heating
• UMLH – unmet load hour
• VAV – variable air volume
• WBP – whole building performance
• WHVAC – water-side HVAC
• WWR – window to wall ratio