High Performance Sequences of Operation for HVAC Systems
ASHRAE Guideline Project Committee 36

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    Upcoming PC Meetings

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    The last meeting was held on Tue, Sep 8, 2020 8:00 AM - 11:00 AM (PDT).


    The next meeting is has been scheduled for January 15th 2021. It will be held online, please see the meetings page for details.


    Project Committee meeting minutes are available to interested parties upon written request of the Manager of Standards. Attachments to minutes may or may not be included due to file size and/or because copyrighted intellectual property is included. Decisions to distribute attachments to the minutes will be made on a case by case basis and due to the size of the request may take longer to process.

    Title, Purpose, and Scope

    1. PURPOSE:
    The purpose of this guideline is to provide uniform sequences of operation for heating, ventilating, and air-conditioning (HVAC) systems that are intended to maximize HVAC system energy efficiency and performance, provide control stability, and allow for real-time fault detection and diagnostics.

    2. SCOPE:
    2.1 This guideline provides detailed sequences of operation for HVAC systems.
    2.2 This guideline describes functional tests that when performed will confirm implementation of the sequences of operation.


    Committee Chair

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    Steven Taylor


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    Rick Stehmeyer

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    About the Guideline

    Guideline 36 was created by ASHRAE’s Technical Committee 1.4, Control Theory and Application to maintain and publish best-of-class control sequences that meet or exceed the requirements of published ASHRAE standards such as 90.1, 62.1 and 55. These sequences are intended for use with fully programmable DDC BAS systems controlling variable speed/capacity equipment.

    The Guideline’s first formal publication will be high performance control sequences for airside HVAC equipment, including single zone VAV AHUs, multiple-zone VAV AHUs, and a variety of VAV terminal units.  These control sequences are based on Task 2, the written English language sequences of operation, from ASHRAE Research Project 1455, “Advanced Control Sequences for HVAC Systems – Phase I Air Distribution and Terminal Systems.”

    The Guideline was first published in 2018 and can be purchased via the ASHRAE Bookstore.

    The GPC meets (under normal circumstances) at the Annual and Winter Meetings on Mondays from 8am noon local time.  We also have quarterly net meetings.  Their dates and times will be updated on this website as they're determined. 

    In addition to help in writing the guideline we need control manufacturers and facility owners to participate in the programming and testing of these sequences in their hardware and facilities.  Currently we are searching for controls manufacturers to develop Guideline 36 compliant programs for use by their distribution networks which will help adoption of the sequences through out the industry. 

    Please share this site with other potential interested parties, and have them contact Steve Taylor if they are interested in joining this committee.