Recovery equipemnt used for the service or repair of small appliances must be certified by an EPA approved lab if the recovery equipment was made after - Answer- November 15, 1993
Recovery devices made before 11-15-93
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Recovery equipemnt used for the service or repair of small appliances must be certified by an EPA approved lab if the recovery equipment was made after - Answer- November 15, 1993
Recovery devices made before 11-15-93 and are used for recovery of refrigerant from small appliances must be capable of: - Answer- recovering 80% of the refrigerant whether or not the compressor is operating or achieving a 4 inch vacuum under conditions of ARI 740-1993
EPA's definition of a small appliance includes: - Answer- a device manufactored, charges & hermeticly sealed in factory with a charge of 5lbs or less
Tech's with a type 1 small appliance certification are certified to recover refrigerant during the maintenance or repair of: - Answer- PTAC's with 5lbs or less of refrigerant
EPA requires that all small appliances be equipped with a service aperture or other device that is used when adding or removing refrigerant from the appliance. For small appliances this service port typically - Answer- a straight piece of tubing, called a process tube that is entered using a piercing valve
The EPA section 608 certification must be renewed every - Answer- never
It is an EPS regulation that any person who opens and appliance for maintenance, service or repair must have at least one self-contained recovery machine avalible at their place of buisiness. The only exception to this rule are persons working on - Answer- small appliances
The sale od CFC & HCFC refrigerants is: - Answer- restricted to techs who are EPA certified in refrigerant recovery
Anyone who recovers refrigeration during maintenance, service or repair of small appliances must be certified as either a universal Tech or a: - Answer- Type 1 tech
When recovering refrigerant from a household refrigerator who's compressor does not run, it is recommended that a low and high side access valves be installed because: - Answer- it can help speed of recovery and required recovery effiency
If you install an access fitting into a sealed system: - Answer- the fitting should be leak tested before proceeding with recovery
Before beginning a refrigerant recovery procedure it is alway necessary to: - Answer- determine the type of refrigerant in the system
when recovering refrigerant into a non-pressurized container from a refrigerator with an improper compressor: - Answer- it is necessary to heat & strike the compressor with a rubber mallet
When checking for the existence of noncondensable gases inside a recovery cyclinder, why is it proper procedure to allow the temperature of the cyclinder to stabilize @ room temperature before taking a pressure reading? - Answer- any comparisons to a pressure-temperature chart is only valid if both the pressure & temperature of the refrigerant are stable
A recovery cyclinder which is 1/2 full of recovered R-410A @ 90*F, in the absence of non-condensables will be presurized to: - Answer- 300 psig.
When using ______, it is essential to take extra measures (heating/striking), to help release trapped refrigerant from the compressor oil. - Answer- passive system-dependdent recovery devices on a small appliance with a non-operating compressor.
According to the EPA which recovery equipment maintenance practice(s) should be preformed on a regular basis? - Answer- check recovery device for refrigerant leaks
On a small appliance with an operating compressor that has a completely plugged capillary tube, what is the minimum number of access valves that are needed to evacuate the refrigerant - Answer- 1 valve on the high side
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