High-Efficiency Rooftop Unit (RTU) Replacement

This toolkit contains resources to help HVAC contractors and service companies work with their customers through a step-by-step method of evaluating and managing their inventory of RTUs and how to make the business case for high-efficiency replacements.

  • TOOLS
    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, condition, etc.) about your RTUs. Use the detailed fields to gather additional information (i.e., controls, usage patterns, features, etc.) for additional analysis of the RTUs identified for retrofit, replacement, or further analysis.
    This spreadsheet lists financial incentives and financing programs in areas for the highest energy savings opportunities.
    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.
    This specification provides a description of rooftop unit (RTU) efficiency and functionality characteristics that align with the goals of DOE’s Advanced RTU Campaign for new or replacement installations.
    Adidas developed an RTU procurement specifcation to standardize equipment and to obtain competitive pricing through National Accounts for future planned replacements.
    This report from the Professional Retail Store Maintenance Association (PRSM) highlights the benefits of proactive rooftop unit replacement and retrofits within the retail sector with support from Advanced RTU Campaign resources.
    As part of their efficiency efforts, Adidas is involved in DOE's Advanced Rooftop Unit Campaign (ARC). They successfully implemented a planned rooftop unit (RTU) replacement program to save energy and avoid costly emergency replacements. The new high-efficiency RTUs have helped Adidas reduce both maintence costs and electricty consumption by 20% and 40% depending on location.
    Arby's Restaurant Group developed a comprehensive, portfolio-wide rooftop unit (RTU) assessment approach that has led to over $280,000 and nearly 3 million kWh in annual savings.
    Fontana Unified School District in Southern California used grant money to install over 200 high-efficiency RTUs in 30 buildings across four schools, resulting in $214,000 saved per year.
    The U.S. Department of Energy developed the RTU Challenge to test high performance rooftop air- conditioning units versus standard units at two Publix store locstions, which resulted in anual energy and utility costs savings of 16,000 kWh and $1,600 respectively.
    Through its partnership with the Better Buildings Advanced Rooftop Unit Campaign (ARC), Target has developed a highly successful rooftop unit replacement program that will produce estimated cost savings of $1.3 million annually.
    This case study details Walgreens' successful development of a program to strategically retire RTUs prior to failure and replace them with high-efficiency units. In just 150 stores, this project brought back more than $1 million in savings from material and labor budgets.


Tool type:

Toolkit

Technology:

HVAC, Rooftop Unit