ASHRAE guidelines and standards open for comment

The below drafts are open for 45-day public reviews

• BSR/ASHRAE/ASHE Addendum m to ANSI/ASHRAE/ASHE Standard 170-2021, Ventilation of Health Care Facilities (second independent substantive change public review draft). Commenting is open Dec. 13, 2024 to Jan. 27, 2025.

  Proposed Addendum m revises Tables 7-1, 8-1, 8-2 and 9-1 to incorporate types of room units that are allowable for each space type. This will provide clarity and consistency within this standard. This addendum comprises the following general edits: new definition for room unit; and revisions to tables 7-1, 8-1, 8-2 and 9-1 modifying the general requirement for recirculating room units to align with the definition and specify the type of room unit allowable in each space. 

  Revisions to the requirements for air change rate provisions with respect to room units. 

• ASHRAE/ASHE Guideline 43P, Operations Guideline for Ventilation of Health Care Facilities (third independent substantive change public review draft). Commenting is open Nov. 22, 2024 to Jan. 6, 2025. 

  The purpose of this guideline is to provide recommendations for the operation of heating, ventilation and air conditioning (HVAC) systems that provide environmental control in health care facilities for the safety and comfort of health care facility occupants. The intent of Guideline 43 is to provide an operational guideline for health care facilities that will work in collaboration with the design standard ASHRAE/ASHE Standard 170, Ventilation of Health Care Facilities, which has been adopted by reference by the Centers for Medicare & Medicaid Services. The guideline covers the implementation of a maintenance program through defining the responsible party, a minimum maintenance program and the elements of the program along with providing guidance on legacy systems, condition indicators, excursion variations and program improvement opportunities.

Visit the ASHRAE portal to make comments on the above addenda.