EPA 608 Type 1 Questions & Answers

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EPA 608 Type 1 Questions & Answers 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 - ✔✔Nov ... ember 15, 1993 Recovery devices made before 11-15-93 and are used for recovery of refrigerant from small appliances must be capable of: - ✔✔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: - ✔✔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: - ✔✔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 - ✔✔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 - ✔✔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 - ✔✔small appliances The sale od CFC & HCFC refrigerants is: - ✔✔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: - ✔✔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: - ✔✔it can help speed of recovery and required recovery effiency If you install an access fitting into a sealed system: - ✔✔the fitting should be leak tested before proceeding with recovery Before beginning a refrigerant recovery procedure it is alway necessary to: - ✔✔determine the type of refrigerant in the system when recovering refrigerant into a non-pressurized container from a refrigerator with an improper compressor: - ✔✔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? - ✔✔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 noncondensables will be presurized to: - ✔✔300 psig. When using ______, it is essential to take extra measures (heating/striking), to help release trapped refrigerant from the compressor oil. - ✔✔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? - ✔✔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 - ✔✔1 valve on the high side Which refrigerant is most commonly used as a replacement for R-12 in new household refrigerators - ✔✔R-134a Small amounts of refrigerant have no odor, therefor a pungent odor is detected during a system recovery &/or repair: - ✔✔a compressor burn-out has likely occurred If R-22 or R-12are exposed to high temperatures, these refrigerants can decompose to form: - ✔✔hydrochloric & hydroflouric acids Large spills of refrigerant can cause suffocation because: - ✔✔they are heavier than air & displace oxygen In the event of a large release of R-12 or R-22 in a contained area - ✔✔you should wear a "SCBA" or leave the area is required If a large leak of refrigerant occurs in an enclosed area 7 no self-contained breathing apparatus is available then you should - ✔✔Vacate & ventilate the spill area Portable refillable tanks or containers used to ship recovered refrigerants must meet what standards - ✔✔DOT Recovery or recycling equipment whaich was manufactured after 11-15-93 and is used to recover refrigerant from small appliances prior to the disposal of the small appliance must be used: - ✔✔recover 80% of the refrigerant if the compressor isn;t working and 90% on one with a working compressor EPA regulations require the capture of at least 80% of the refrigerant from a small appliance with an non operating compressor is the tech is using: - ✔✔either type of recovery unit A standard vacuum pump designed for evacuation & dehydration can: - ✔✔be only used as a recovery device in combination with a non pressurized container If you are recovering refrigerant from a frost free refrigirator you should: - ✔✔turn on the defrost heater to vaporize any trapped liquid Solderless piercing valves should not remain installed on refrigeration systems after completion of repairs because: - ✔✔they can leak over time A refrigerant that can be used as a direct service drop in subsitute for R-12 in a small appliance is: - ✔✔NONE When connecting your service manifold to check your system pressures it is always a good idea to: - ✔✔use equipment such as hand valves or seld sealing hoses to minimize release A recovery cylinder which is 1/2 full of recovered R-22 at normal room temperature about 75, in the absence of non-condensables, will be pressurized to: - ✔✔75 psig A passive system-dependent recovery device for small appliances: - ✔✔captures refrigerant in a non-pressurized container When transporting refrigerants, the DOT regulation number 49 CFR requires________to be recorded on the shipping papers for hazard class 2.2 nonflammable compressed gasses - ✔✔number of cylinders of each type of gas [Show More]

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