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ASHRAE Technical Committee 3.3 - Refrigerant Contaminant Control


Welcome to the homepage of the ASHRAE Technical Committee 3.3. This technical committee is concerned with sources, generation, and control of water and other contaminants in refrigerating systems.


Do you want to get involved in your TC's issues at the Society level? If so, read through the pages of this site, attend the annual meeting, or contact our Committee Chair or a subcommittee member. 

MEETINGS at Winter Meeting, Chicago, January 2015


Main committee meeting:

 TC 3.3 Refrigerant Contaminant Control - Tuesday, January 27, 3:30-6:00 pm

Agenda for Chicago:  Come back later

Our subcommittee meetings are scheduled as follows:
TC 3.3 Research - Sunday, 4:00-6:00 pm (with TC 3.2 and TC 3.4)


The subcommittee meetings are where the action is, so don't miss them.


Programs at Chicago meeting of special interest to TC3.3: 

Sunday, January 25, 9:45 AM-10:45 AM


HVAC Refrigerants

Track: Fundamentals and Applications

Sponsor: 08.04 Air-to-Refrigerant Heat Transfer Equipment

Chair: Steve Kujak, Member, Ingersoll Rand, La Crosse, WI

Presentation of 3 Conference Papers on refrigerant heat.

Chemical Compatibility of Low GWP Refrigerants with HVACR System Materials

Julie Majurin1 and Elyse Sorenson, Member1, (1)Ingersoll Rand, La Crosse, WI

A Historical Perspective of Refrigerant Chemical Stability and Materials Compatibility for HVACR Systems

Steve Kujak, Member, Ingersoll Rand, La Crosse, WI

Experimental Investigation on Heat Transfer and Thermophysical Properties of Mixtures of Al2O3 Nanolubricants and Refrigerant R410A

Andrea A. M. Bigi, Student Member1, Thiam Wong, Student Member1, Amy Wong, Student Member1 and Lorenzo Cremaschi, Ph.D., Member1, (1)Oklahoma State University, Stillwater, OK

 Sunday, January 25, 1:30 PM-3:00 PM


Alternative Refrigerants for Residential Refrigerator-Freezers

Track: Fundamentals and Applications

Sponsor: 08.09 Residential Refrigerators and Food Freezers

Chair: Edward A. Vineyard, P.E., Member, Oak Ridge National Laboratory, Oak Ridge, TN

The objective of this seminar is to present current information on alternative refrigerants under consideration in residential refrigerators. This includes information on performance, stability, flammability, component design changes and future EPA regulations.

Cycle Efficiency, Charge Minimization, and Service of Household Refrigerators with R-600a

Brent Junge, P.E., Member, General Electric, Louisville, KY

A Performance Comparison of R-1234yf and R-134a in Residential Refrigerator Applications

Michael Pate, Ph.D., P.E., Member, Texas A&M University, College Station, TX

Low GWP Options for Self-Contained Refrigeration Systems

Barbara Minor1, Thomas J. Leck, Ph.D., Member1 and Charles C. Allgood, Ph.D., Member1, (1)Dupont, Wilmington, DE

Monday, January 26, 11:00 AM-12:00 PM


Code and Safety Standard Requirements: Working with 2L LGWP Refrigerants

Track: Life Safety

Sponsor: 03.01 Refrigerants and Secondary Coolants, MTG LowGWP

Chair: Robert G Richard, Member, Honeywell Int. Inc., Buffalo, NY

This session looks at code and standard requirements for implementing the LGWP refrigerants of classification 2L (flammable with burning velocity below 10 cm/sec). We have invited two panel members that are experts in the ASHRAE standards process and ASHRAE's role in other standard making bodies. The panel also will be able to discuss potential obstacles moving forward and work that still needs to be done. 

 Tuesday, January 27, 11:00 AM-12:30 PM


International Codes and Standards Issues Impacting use of A2L Refrigerants in Unitary Heat Pump and Air-Conditioning Equipment

Track: Systems and Equipment

Sponsor: 08.11 Unitary and Room Air Conditioners and Heat Pumps, 03.01 Refrigerants and Secondary Coolants

Chair: Van D. Baxter, P.E., Fellow ASHRAE, Oak Ridge National Laboratory, Oak Ridge, TN

International efforts to address climate change are putting pressure on the HVAC&R industry to limit use of HFC refrigerants that have relatively high global warming potential (GWP) and transition to equipment designed around low GWP alternatives. To meet this challenge without compromising energy performance, companies are evaluating use of mildly flammable (A2L) refrigerants. The presentations discuss recent activities to modify product safety standards to facilitate A2L use, recent R&D advances on A2L refrigerants and A2L implications for unitary product designs. An update on the impact of F-gas regulations on heat pump refrigerant options in Europe is also provided.

Standards Development for 2L Flammable Refrigerants

Brian Rodgers, Member, Underwriters Laboratories, Northbrook, IL

Product Design Considerations for 2L Refrigerants

Paul Papas, Ph.D., United Technologies Research Center, East Hartford, CT

Update on Research to Support Implementation of 2L Refrigerants

Steve Kujak, Member, Ingersoll Rand, La Crosse, WI

Progress in Drafting Amended Wording for Safety Standards to Accommodate the Use of A2L Refrigerants

Dutch Uselton, P.E., Fellow ASHRAE, Lennox Industries, Carrollton, TX

Availability of Refrigerants for Heat Pumps in Europe

Rainer M. Jakobs, P.Eng., Member, Information centre on Heat pumps and Refrigeration, IZW e.V., Breuberg, Germany


This page revised 11/10/2014

Committee Chair:


Julie Majurin
Julie Majurin


Upcoming Meetings:


2015 Winter Meeting
January 24-28, 2015

2015 Annual Meeting
June 27-July 1, 2015

2016 Winter Meeting
January 23-27, 2016








This web site describes the activities of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE) Technical Committee 3.3, Refrigerant Contaminant Control. It does not present official positions of the Society nor reflect Society policy. ASHRAE is not responsible for this site's content. To learn more about ASHRAE activities on an international level, contact the ASHRAE home page at http://www.ashrae.org. Comments about the site? Contact us at webmasterTC3.3 2004, ASHRAE TC3.3