Public Review Drafts

As an accredited standards developing organization through the American National Standards Institute (ANSI) and Standards Council of Canada (SCC), AHRI is required to make all proposed standards available for public review. Comments are invited for the following Public Review Drafts during the listed comment period.

To obtain a copy of Public Review Draft of a proposed American National Standard, contact AHRI via
To obtain a copy of Public Review Draft of a proposed Joint National Standard, contact AHRI via

Proposed Joint Canada-US National Standards
Proposed ANSI/CAN/AHRI Standard 1230 (I-P)-201X, Performance Rating of Variable Refrigerant Flow (VRF) Multi-Split Air-Conditioning and Heat Pump Equipment

This standard covers matched Variable Refrigerant Flow (VRF) Multi-split Air Conditioners and Multi-split Heat Pumps using distributed refrigerant technology as defined in Section 3 of this standard. This standard applies to VRF Multi-split Systems consisting of the following matched components: 1) Outdoor Unit(s) with single or multiple compressors, at least one of which is a variable capacity compressor or has a variable speed drive on a single refrigeration circuit; 2) Indoor Units that have a coil, air movement device intended for single zone air distribution, and a temperature sensing control; and 3) a zone temperature control device. The Multi-split Systems covered in this standard are VRF Multi-split Systems and VRF Heat Recovery Multi-split Systems. Included are Multi-split, matched system air conditioners and Heat Pumps. This standard applies only to electrically operated, vapor compression refrigeration systems.

Public Review Start Date: 10/05/2018

Public Review End Date: 11/19/2018

Proposed ANSI/CAN/AHRI Standard 540-201X, Standard for Performance Rating of Positive Displacement Refrigerant Compressors

This standard applies to positive displacement Compressors and their presentation of performance in heating, ventilation, air-conditioning, and refrigeration applications. The manufacturer is solely responsible for the determination of values to be used in published product information. This standard stipulates the minimum amount of information to be provided and suggests a method to be used to verify the accuracy of that information.

Public Review Start Date: 09/20/2019

Public Review End Date: 11/19/2019