Resources on Energy-Efficient HVAC

Advanced Buildings Core Performance Guide - The Core Performance Guide outlines a direct approach to achieve predictable energy savings in small- to medium-sized buildings without the need for modeling while delivering best-in-class energy efficiency and indoor environmental quality in a high performance commercial building.

Advanced VAV System Design Guide - The Advanced VAV System Design Guide provides recommendations to help engineers improve the efficiency of large HVAC systems. It focuses on built-up variable-air-volume systems in multistory office buildings.
VAV Design Guide (.pdf – 3.94MB)

Small Commercial HVAC System Design Guide - This design guide addresses practices in design for improving performance of small package HVAC systems.
Small HVAC System Design Guide (.pdf – 1.59 MB)

Small HVAC Installation Guidelines - Consortium for Energy Efficiency - These guidelines, developed by the Consortium for Energy Efficiency (CEE), encourage proper installation of commercial HVAC equipment.
Small HVAC Guidelines

Automatic Control Specification Builder - This software package provides a detailed control specification for most conventional equipment configurations. Specifications are open and non-proprietary and include sequences, schematics, point lists, trends, alarms, and other key requirements in English or metric units.  It includes options for BACnet, web-based UI, XML/SOAP interface, cell phone/PDA UI, electrical demand reduction, and is based on ASHRAE Guideline 13-2000, with options for CSI MasterFormat 95 or 2004.

Mixed Mode Ventilation: Finding the Right Mix, Erin McConahey, P.E., Member ASHRAE, ASHRAE Journal, September 2008 - This article outlines the engineering approach to use to achieve an efficient hybrid ventilation system.  It discussed the applicable regulations to be considered as well as the control schemes needed to assure high performance. Four examples are provided that illustrate variations in approach.

Dedicated Outside Air Systems - Everything you ever wanted to know about DOAS!

ASHRAE Advanced Energy Design Guides – The ASHRAE Advanced Energy Design Guides (AEDG) are a series of publications designed to provide recommendations for achieving energy savings over the minimum code requirements of ANSI/ASHRAE/IESNA Standard 90.1-1999.  The initial series of guides have an energy savings target of 30%.  Each Guide addresses a specific building type.

Whole Building Design Guide - The goal of 'Whole Building' Design is to create a successful high-performance building by applying an integrated design and team approach to the project during the planning and programming phases.

Energy Master Planning for HVAC Systems in New and Existing Buildings

HVAC System Dynamic Integration

Getting to 50 & Beyond - There are no technical barriers, and few financial ones, to restrict the energy efficiency of most commercial construction from being at least 50 percent better than current code requirements. However, there is limited practical guidance for design teams who may be ready to consider advanced building performance.  Many projects have already approached or surpassed this high level of performance, but the task of tracking down whose done what, and with what result, can be cumbersome and time consuming. NBI's High Performance Buildings Database streamlines your research efforts by providing a central online location for information on buildings that have successfully met that performance test.
Summary of GT50 building characteristics
High Performance Buildings Database

Planning and Achieving High-Performance Buildings, Peter C. D'Antonio, PE, CEM, LEED AP, Feb 19, 2009 - A review of the high performance design process and three examples of net zero buildings.

Federal Tax Incentives - The Energy Policy Act of 2005 (EPACT 2005) provides tax incentives for buildings whose energy performance reaches or exceeds 50% less than ASHRAE 90.1-2001 standards.On October 3, 2008, the energy provisions of the so-called ‘Financial Bailout’ legislation extended for five years the eligibility date for the tax deduction. Commercial buildings and/or equipment entering service between January 1, 2006 and December 31, 2013 can realize a tax deduction of $1.80 per square foot by using 50% less energy with respect to lighting, HVAC, envelope and hot water systems.
Tax Incentives Assistance Project (TIAP)
Commercial Building Tax Deduction Coalition

Persistence: The Missing Link in Commercial HVAC Energy Efficiency - Energy efficient HVAC is not simple to achieve or sustain. Even new “state of the art” commercial
HVAC systems lose operational efficiency after installation because of the way they are designed,
installed and maintained. This whitepaper provides an overview of how advanced control methodologies and networked based tools are leading to a paradigm shift in the way commercial HVAC systems are operated and managed.

Variable Refrigerant Flow (VRF),  William Goetzler, Member ASHRAE, April 2007 - This excellent ASHRAE article lays out the basics for VRF, including applications, issues, benefits and the likely near term future for this efficiency technology.

Climate Change and IEQ, William Fisk, Fellow ASHRAE, June 2009 - A broad view of the many issues related to the increased efficiency of the U.S. building stock.