High-Efficiency Rooftop Unit (RTU) Replacement for Utilities and Efficiency Programs

This toolkit includes resources to assist utilities and efficiency programs in understanding and incentivizing high-efficiency RTU replacements. Reference guidance on various considerations including calculators, sizing guidance, procurement specifications, financial business cases, case studies, and M&V methods.  

    This decision tree guides the reader through the challenging task of determining how to manage existing rooftop units with easy to follow evaluation questions and links to additional resources for more information.
    Use the RTU Inventory Spreadsheet to gather basic information (i.e., number, size, age, general condition, etc.) 
    The Rooftop Unit Comparison Calculator (RTUCC) compares high-efficiency rooftop air conditioners to standard equipment in terms of life cycle cost. 
    This document introduces the key elements to consider in making the business case for a proactive high-efficiency RTU replacement strategy for facility maintenance staff and building engineers responsible for energy management.
    Common sizing mistakes (with respect to cooling tonnage and supply fan horsepower) can be controlled with these recommended processes to help project teams avoid those mistakes and ensure effective RTU replacement investments.
    The Offeror shall provide a detailed description of the rooftop unit (RTU) model offered for sale in response to this Solicitation.
    Adidas developed an RTU procurement specifcation to standardize equipment and to obtain competitive pricing through National Accounts for future planned replacements.
    The Advanced RTU Campaign is a recognition and guidance program designed to encourage building owners and operators to take advantage of savings opportunities from high-efficiency RTUs.
    Various M&V methods are helpful in estimating the payback and justifying future projects and understanding water efficiencies, emissions reductions, maintenance costs and savings, indoor environmental quality (IEQ) improvements, and occupant satisfaction.
    The creative and determined leadership of Efficiency Vermont successfully completed a 66-rooftop unit (RTU) high-efficiency replacement project on a large 140,000 square foot office building in Vermont.

Tool type:



HVAC, Rooftop Unit