Overview
Chlorofluorocarbon-12, also called CFC-12, has long been the refrigerant of choice for motor vehicle air conditioning systems. However, it has been shown to be a major ozone-depleting substance. It is now banned for use in new systems. The substitutes, called hydrofluorocarbon-134a or R-401C, also have ozone-depleting potential.
Class I chemicals (CFCs, halons, carbon tetrachloride, and methyl chloroform) will be phased out by 2000, with the exception of a methyl chloroform phase-out by 2002. Class II chemicals (hydrochlorofluorocarbons (HCFCs)) will be phased out by 2030.
A "reduced use exemption" is available for users of methyl chloroform or CFC-113. Manufacturers must be able to document a 95 percent reduction in overall usage from 1990. This certification must cover a 12-month period.
Who may work on air-conditioning equipment?
Only persons who have graduated from an approved technician training and certification program may work on air-conditioning equipment.
Persons who maintain, service, or repair MVAC-like appliances must either be properly certified as Type II technicians or complete the training and certification test offered by a training and certification program approved under Section 82.40.
Persons who maintain, service, or repair small appliances as defined in Section 82.158(v) must be properly certified as Type I technicians.
Persons who maintain, service, or repair high or very high-pressure appliances, except small appliances and MVACs, or dispose of high or very high-pressure appliances, except small appliances and MVACs, must be properly certifieThis information is provided by Assurance Agency https:www.assuranceagency.comd as Type II technicians. Persons who maintain, service, or repair low-pressure appliances or dispose of low-pressure appliances must be properly certified as Type III technicians.
Persons who maintain, service, or repair low- and high-pressure equipment as described in Section 82.161 (a) (1), (2) and (3) must be properly certified as Universal technicians.
This information is provided by Assurance Agency https:www.assuranceagency.com
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