About this presentation

related to ATMOsphere America 2012
published on 13 June 2012
17 pages
269 KB

Haseman provides an update on UL standards for natural refrigerants, including carbon dioxide and hydrocarbons. In addition to household refrigerators, UL has developed requirements for the use of flammable refrigerants in commercial refrigerators, vending machines, and room air conditioners. The presentation discusses the refrigerant charge limits for A3 category refrigerants (including hydrocarbons) set by UL standards for the different types of application. Haseman’s presentation also provides an overview of UL standard requirements for carbon dioxide as a secondary coolant and in transcritical mode. Finally he discusses the work of the Flammable Refrigerants Joint Task Group (JTG) and its three working groups.

About the speaker(s)

Randall Haseman

 

Randall Haseman has been with UL for over 30 years, holding numerous positions relative to the safety evaluations of refrigeration and air conditioning products. He is currently responsible for the standards pertaining to household and commercial refrigerators, ice makers, beverage coolers, ice cream makers, room air conditioners, dehumidifiers, and air filters. In addition to UL standards, he has worked extensively with CSA, IEC, NSF, and energy performance standards.

Randall is currently an executive committee member of UL’s Joint Task Group on flammable refrigerants. He is the Technical Advisor and Administrator for the U. S. Technical Advisory Group for IEC SC61C, and is the Technical Advisor for UL on the Standards Technical Panels (STPs) for the above products. He also represents UL on several outside committees including CANENA and ASHRAE.