EPA 608 Refrigerant Handling and Safety

EPA 608 Type 1 Flash Cards Question Definition of ODP and GWP To prevent refrigerant contamination of a storage tank What are the four lines of refrigeration cycles Answer Ozone Depletion Potential Global Warming Potential ensure evacuated the tank before use Discharge line, Liquid line, Suction line and Expansion line three oxygen molecule recycling The pressure is 30 psi The pressure is between 155psi to 340 psi The pressure is between 30psi to 155 psi Recovery ,Recycling and reclamation The component of ozone molecule Cleaning refrigerant using filter dryers is called What is the psi of low pressure of refrigerant What is the psi of high pressure of refrigerant What is the psi of medium pressure of refrigerant What are the three common process for handling refrigerant Which refrigerant has a highest ODP and harmful to stratospheric Chlorofluorocarbon (CFCs) ozone 1.Q: What gas may be used to blow debris out of a system and should be vented to the air? A: Nitrogen. 2.Q: What is the sign of a compressor burn-out during recovery? A: A pungent odor and oil contamination. 3. Q: Why must refrigerants never be mixed in a recovery cylinder? A: Because they must be reclaimed or destroyed separately. 4. Q: What safety equipment should always be worn when working with refrigerants? A: Safety eyewear and butyl-lined gloves. 5. Q: What should be done before taking a pressure reading to check for non-condensables? A: Allow the cylinder to reach room temperature. 6. Q: What type of refrigerants require permanent safety markings on appliances? A: Hydrocarbon (HC) refrigerants like R-600a and R-290. 7. Q: What is a passive recovery device? A: A system-dependent recovery method that captures refrigerant without using a compressor or active machine. 8. Q: Why should solderless piercing valves not be left on the appliance permanently? A: Because they tend to leak over time. 9. Q: What can be used to help release refrigerant trapped in the compressor crankcase oil? A: A heat gun and tapping the compressor with a rubber mallet. 10. Q: What must be done with the refrigerant vented from the top of a charging cylinder? A: It must be recovered. 1QM: What is the maximum allowable factory charge of refrigerant for a small appliance under Type I certification? 2QM:When servicing a small appliance, which recovery equipment is allowed under EPA regulations? 3QM:Which of the following refrigerants is commonly found in small appliances manufactured before 1995? 4QM: When recovering refrigerant from a small appliance with a non-operating compressor, what must be done? 5QM: Which refrigerant is an HFC and commonly used as a replacement in small appliances? 6QM:Which of the following small appliances is not typically covered under Type I certification? 7QM:What must be done with the refrigerant in a system before disposing of a small appliance? 8QM:How can you determine if a recovery cylinder is overfilled? 9QM:Why is it important to avoid mixing refrigerants in recovery cylinders? 10QM:Recovery equipment designed for use with small appliances must be able to recover refrigerant to what percentage when the compressor is operating? The EPA definition of a small appliance includes; products manufactured, fully charged, and hermetically sealed in a factory containing _______ pounds or less of refrigerant. Recovery equipment used during the maintenance, service, or repair of small appliances that use CFCs, HCFCs, and HFCs must be ____________ New SNAP regulations have approved R-290, R-450A, and R-600a refrigerants for_______________ When servicing a small appliance found to be leaking, it is not mandatory to ______________ Before beginning a refrigerant recovery procedure, it is always necessary to know the ___________ that is in the system It is unacceptable to ____ any refrigerants in an appliance or recovery cylinder. _______________ is a very high-pressure refrigerant and generally does not need to be recovered. Because refrigerants _________ and displace oxygen, a very large refrigerant leak can cause suffocation. Hydrocarbon refrigerants are________ for retrofit into existing household refrigerators. Split-systems ________________ be serviced by Type I technicians Portable refillable tanks or containers used to ship CFC or HCFC refrigerants obtained with recovery equipment must meet what standard? What will happen to mixed refrigerants that are sent to reclaim centers? The state and condition of the refrigerant entering the condenser is a What best describes the definition of Type 1 "small appliance" as defined by EPA? Before you dispose of an appliance containing a standard refrigerant, you must do what? After recovering refrigerant from a sealed system, if nitrogen is used to pressurize or blow debris out of the system, can it be vented to the atmosphere? CFC's will not be manufactured in the United States after when? What is the maximum allowable factory charge of refrigerant for Type 1 appliances? How should you dispose of disposable refrigerant cylinders? What should you do when installing any type of access fitting onto a sealed system? 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 Recovery devices made before 11-15-93 and are used for recovery of refrigerant from small appliances must be capable of: EPA's definition of a small appliance include 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 Tech's with a type 1 small appliance certification are certified to recover refrigerant during the maintenance or repair of: 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 at room temperature before taking a pressure reading? Five certified by an EPA-approved laboratory newly manufactured household refrigerators. repair the leak type of refrigerant mix R-744, carbon dioxide are heavier than air not approved may not Department of Transportation Will be disposed of at the owner's expense Superheated vapor Systems manufactured charged and sealed with 5 pounds or less of refrigerant Recover the refrigerant Yes 1995 5 pounds Render useless and sent to salvage Make sure the fitting is leak tested before proceeding with recovery November 15, 1993 recovering 80 %of the refrigerant a device manufactored, charges & hermeticly sealed in factory with a charge of 5lbs or less a straight piece of tubing, called a process tube that is entered using a piercing valve PTAC's with 5lbs or less of refrigerant 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: Which refrigerant is most commonly used as a replacement for R12 in new household refrigerators 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: 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: 300 psig r-134a either type of recovery unit 75 psi