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A technician seeking Universal certification must correctly answer 18 out of 25 questions on each section of the exam. In addition to covering EPA (in particular, Section 608) regulations, the exam also covers basic safety and occupational practices, along with fundamental concepts of stratospheric ozone protection (which are typically part of ...
The EPA defines refrigerant reclamation as "Reclaim refrigerant means to reprocess refrigerant to at least the purity specified in appendix A to 40 CFR part 82, subpart F (based on AHRI Standard 700–1993, Specifications for Fluorocarbon and Other Refrigerants) and to verify this purity using the analytical methodology prescribed in appendix A ...
R-410A was invented and patented by Allied Signal (now Honeywell) in 1991. [5] Other producers around the world have been licensed to manufacture and sell R-410A. [6] R-410A was successfully commercialized in the air conditioning segment by a combined effort of Carrier Corporation, Emerson Climate Technologies, Inc., Copeland Scroll Compressors (a division of Emerson Electric Company), and ...
HC-12a, also called ES-12a, OZ-12a, DURACOOL 12a [1] and Hydrocarbon Blend B, is marketed as a "drop-in" replacement refrigerant for R-12 and other refrigerants. HC-12a is a mixture of hydrocarbons, specifically propane (R-290) and isobutane (R-600a), and is therefore considered nearly non-ozone-depleting.
The Environmental Protection Agency (EPA) is an independent agency of the United States government tasked with environmental protection matters. [2] President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on December 2, 1970, after Nixon signed an executive order. [3]
The Air Conditioning, Heating, and Refrigeration Institute (AHRI), formed in 2008 by a merger of the Air-Conditioning and Refrigeration Institute (ARI) and the Gas Appliance Manufacturers Association (GAMA), is a North American trade association of manufacturers of air conditioning, heating, and commercial refrigeration equipment. [1]
Pressure-retaining items can be registered with the National Board, requiring certain uniform quality standards be achieved certifying the manufacturing, testing, and inspection process. To obtain a certification the registered items have to be inspected by National Board-commissioned inspectors and built to required standards.
Particularly because it decides which refrigerants may be legally used, it coordinates refrigerant phaseouts in the U.S., and which are prohibited against venting in concordance with Section 608. The following is a list of accepted refrigerants, or phase-out periods according to the EPA.