UL 1995 4th Edition

Tools & resources to help you through the latest edition of UL 1995.

UL 1995 / CSA C22.2 No. 236 is a harmonized standard for the United States and Canada for heating and cooling equipment. The scope of the standard covers a broad range of HVACR equipment, including both residential and commercial fan coil units, heat pumps, liquid chillers and more.

Are you ready for UL 1995 – 4th edition? With 4th Edition changes for the harmonized UL 1995 / CSA C22.2 No.236 taking effect February 27, 2015, it’s important to review your plan for compliance. We recognize the questions you may have and assembled some of our best resources below to walk you through the biggest changes.

UL 1995 - CSA C22.2 No. 236 February 2015 Implications
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Get all the latest details on the changes to the standard, how to facilitate the move from 3rd to 4th edition, and how it affects you. Gain insights into impacts on Short Circuit Current Rating (SCCR) requirements, control panels, motor controllers, electric heaters, cord lengths and more.



UL 1995 4th Edition
Frequently Asked Questions about the 4th Edition.


4th Edition Top 5 Key Changes
Download our guide as a quick reference to the top changes defined in the 4th Edition.


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Safety Testing for HVACR Equipment