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Interpretations, March 2020

Interpretations, March 2020

Interpretations Published for Standard 62.2, BACnet Standard and More

From eSociety, March 2020

Interpretations have been published for the following ASHRAE Standards: 

ANSI/ASHRAE Standard 62.2-2019, Ventilation and Acceptable Indoor Air Quality in Residential Buildings, approved February 1, 2020. Refers to the requirements presented in ANSI/ASHRAE Standard 62.2-2019, Sections 3, 4 and 6.1, regarding transfer air and outdoor air.

ANSI/ASHRAE Standard 135-2016, BACnet® – A Data Communication Protocol for Building Automation and Control Networks 

  • Interpretation 135-2016-23: dated February 1, 2020. Refers to the requirements presented in ANSI/ASHRAE Standard 135-2016, Clause 12.56 and Table 12.71, regarding the presence of optional properties. 

  • Interpretation 135-2016-24: dated February 1, 2020. Refers to the requirements presented in ANSI/ASHRAE Standard 135-2016, Clause 12.57, regarding writing when State_Change_Values intends to relinquish on all transitions from RUNNING.

  • Interpretation 135-2016-25: dated February 1, 2020. Refers to the requirements presented in ANSI/ASHRAE Standard 135-2016, Clause 12.56.11 Network_Number.

ANSI/ASHRAE Standard 15-2019, Safety Standard For Refrigeration Systems, dated February 2, 2020. Interpretation 15-2019-1: Refers to the requirements presented in ANSI/ASHRAE Standard 15-2019, Section 9.3.1.1, regarding pressure vessels having inside dimensions of 6 in. (152 mm) or less.

ANSI/ASHRAE/ASHE Standard 170-2008, Ventilation of Health Care Facilities, dated February 4, 2020. Interpretation 170-2008-14: Refers to the requirements in ANSI/ASHRAE/ASHE Standard 170-2008, Section 6.1.1, regarding the requirement for Class B operating rooms to maintain pressure and ventilation relationships in the event of a loss of normal electrical power for a specific ambulatory health care facility that is certified by The Centers for Medicare & Medicaid Services (CMS).

ANSI/ASHRAE/ASHE Standard 170-2013, Ventilation of Health Care Facilities, dated March 11, 2020. Interpretation 170-2013-19: Refers to the requirements in ANSI/ASHRAE/ASHE Standard 170-2013, Section 6.3.1.1, regarding OA intake distance from exhaust discharge.

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