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Which appliances are covered by section 608 ?
The Clean Air Act Amendments of 1990 defines an appliance as any device which contains and uses a class 1 or class 2 substance as a refrigerant and is used for household or commercial purpose
What is the primary reason the EPA requires a service aperture or process stub on all appliances?
- All appliances must be equipped with a service
- aperature or other device for adding or removing refrigerant from the appliance
Who sets the regulations for recovery machines ?
All recovery and recycling machines manufactured after November 15, 1993 must be certified to meet EPA requirements
What is a "self -contained" recovery machine ?
- A self-contained recovery unit has its own compressor (or other transfer mechanism) to
- pump refrigerant out of the refrigeration system
Is HCFC-123 a "low" or "high" pressure refrigerant?
HCFC-123 along with CFC-11 and CFC-113 are all low pressure refrigerants.
Is CFC-12 a "low" or "high" pressure refrigerant ?
CFC-12,CFC-114,CFC-500,502 anf HCFC-22 are all high pressure refrigerants
What is the smallest container in which refrigerants may be sold to section 608 certified technicians ?
Only section 608 certified technicians may buy CFC-12 in containers smaller than 20 pounds
What is a system dependent recovery machine?
System-dependent recovery equipment relies solely upon the compressor in the small appliance and/or the pressure of the refrigerant in the appliance to recover the refrigerant
What are the two main types of recovery equipment?
- Self-contained recovery equipoment(active)
- and System-dependent recovery equipment(passive)
After November 15,1993 all _____ and ____
must be what?
After November 15,1993 all recovery and recyling machines must be certified to meet EPA requirements
What appliances must be equipped with a service aperature or other device for adding or removing refrigerant from the appliance?
All appliances must be equipped,but for small appliances this port typically is a straight piece of tubing that is entered using a piercing access valve (process tube)