Your recovery/recycling machine has R-22 refrigerant in it. When an appliance containing 50 pounds or more of a regulated refrigerant leaks refrigerant at an annual rate of 125% or more, what must be included on the leak inspection records submitted to the EPA? Where must you connect a hose in order to recover liquid refrigerant? Recovery phase Which of the following is an approved refrigerant for new household refrigerators, freezers, and combination refrigeration/freezes? During evacuation with large amounts of moisture, it may be necessary to increase pressure to counteract freeing with gas such as; For what refrigerant is an equipment room refrigerant detector NOT required under ASHRAE Standard 15 provided the mechanical ventilation system in the machinery is running continuously? How long must owners and operators of regulated appliances normally containing 50 or more pounds of HCFC refrigerant keep records of leak inspections, initial leak verification and follow-up verification tests? Which of the following statements about recovery equipment is FALSE? Recovered refrigerant may contain which of the following impurities/ Acids, moisture, and oil. c. 5 years Biomass gasification is one of the most promising routes to produce green hydrogen, power, fuels, and chemicals, which has drawn much attention as the world moves away from fossil fuels. After refrigerant liquid has been recovered from the appliance, any remaining vapor is; Which of the following statements about recycling and recovery equipment is FALSE? You are changing out the compressor of a system containing 40 pounds of R-404A. Cooling the recovery cylinder to lower its pressure. Recovered refrigerant may contain which of the following impurities? a. Indicate the values of IDI_{\mathrm{D}}ID, VGSV_{\mathrm{GS}}VGS, and VDSV_{\mathrm{DS}}VDS. d. To prevent acid pitting. After a leak repair of a supermarket rack using 3000 lbs. When recovery is first started, at what phase is the refrigerant removed to save recovery time? Recovering refrigerant from a system in the vapor phase will minimize the loss of which of the following? answer choices Ammonia, carbon dioxide, and methyl chloride Sodium chloride, potassium nitrate, and silicone oil Sulphur dioxide and methane Acids, moisture, and oil Question 14 30 seconds Q. Propane cylinders for grilling contain impurities that can damage refrigeration d. Replacement of a condenser fan motor. d. Evaporator. The refrigerant should be mixed. Which of the following is an indicator of a leak in a high-pressure system with a capilliary tube? 0% average accuracy. Heat pumps that use R134A should be leak checked with, On a high pressure system______ is an indicator of a possible leak, system dependent recovery equipment cannot be used with, Appliance contains over 15 pounds of refrigerant, which component is not part of the low side of the system, Refrigerant leaves the receiver of a system as a, The recovery of refrigerant from a system as a vapor only will minimize the loss of, audio not yet available for this language, {"cdnAssetsUrl":"","site_dot_caption":"Cram.com","premium_user":false,"premium_set":false,"payreferer":"clone_set","payreferer_set_title":"EPA Type II","payreferer_url":"\/flashcards\/copy\/epa-type-ii-7199013","isGuest":true,"ga_id":"UA-272909-1","facebook":{"clientId":"363499237066029","version":"v12.0","language":"en_US"}}. d. 260 psig, What is the component directly following the condenser in a system using a thermal expansion valve? Liquid charge through the discharge service valve. How long must an HVAC servicing company keep records for each disposed appliance with a charge between 5 and 50 lbs? A heat exchanger is a system used to transfer heat between two or more fluids.Heat exchangers are used in both cooling and heating processes. Refrigerant has been recovered from an air-conditioning system and held in a refillable cylinder, in order to replace the condenser coil. (c) Too much charge in the refrigeration system (liquid recovery in the condenser). EPA 608 study material including (Core, type, Introduction to Chemical Engineering Thermodynamics, Hendrick Van Ness, J.M. Please sign in to share these flashcards. What should be done to reduce refrigerant loss from a purge unit on a R-123 chiller? b. To prevent vapor lock during vapor transfer to recovery cylinders. Pressure relief valves can only be installed; Cooling the recovery cylinder to lower its pressure. When can appliances containing refrigerants be recovered to atmospheric pressure? [Air Separation, Refining, Petrochemical, Refrigerants, Natural . In a chiller air and other noncondensables collect; A rupture disk for low pressure chiller will rupture at; Who establishes the refrigerant safety group standard. When are you getting it is opened for servicing the______ should always be replaced, When servicing an operating unit that has a receiver storage tank the, Refrigerant should be recovered into the receiver, Use_____ to remove ice from a sight glass, The refrigerant pressure inside an R12 unit which is at room temperature and not operating is. a. d. When topping off the system. During evacuation with large amounts of moisture it may be necessary to increase pressure to counteract freezing with gas such as; Pressure relief valves can only be installed. c. an open equalization connection. Why could recycling or recovery machines that use hermetic compressors overheat during deep evacuations? A low pressure chiller used for comfort cooling must be repaired if it has an annual leak rate of___ of the total charge. When the condenser is below the receiver. The refrigeration chemicals inside the equipment must be properly recovered using approved . Refrigerant cannot be recovered without isolating a parallel compressor system because of; c. Local municipal water supply Check service valve positions, Check recovery unit oil level, Evacuate recovery unit/receiver. Which of the following is a reason to take an oil sample? How long must an HVAC servicing company keep records for each disposed appliance with a charge between 5 and 50 lbs? Existing hot gas . a. a. It is best practice to use dry nitrogen to break the vacuum when dehydrating by the triple evacuation method. a. if your equipment is recovery only, refrigerant that is removed from vehicles should be poured down the drain b. recover and recycle refrigerant using epa-approved equipment c. filters from approved refrigerant equipment can be thrown in the trash d. records of the dates and quantities of refrigerant recovered and recycled are unnecessary? c. 90 psig c. Accumulator What will non-condensables in a refrigerant system result in? c. When using a qualified seasonal variance. Your recovery recycling machine has r502 refrigerant in it you now have to recover refrigerant from a unit with R22 what must be done before the R-22 refrigerant can be recovered recycled? a. Receiver Recovered refrigerant may contain which of the following? Determine the heat lost from both sides of the plate. When the appliance contains over 15 pounds of refrigerant. Share sensitive information only on official, secure websites. Isolated in the appliance. Recovery efficiency means the percentage of refrigerant in an appliance that is recovered by a piece of recovery and/or recycling equipment. Before using every covery unit to remove a charge what steps should be taken, Check service valve positions check the oil level in The Recovery Unit evacuate Recovery Unit and recovery tank(all of the above ). Which of the following methods can be used to pressurize an R-1233ZD system for the purpose of opening the system for non-major repairs? We'll bring you back here when you are done. c. Air c. A low pressure control. 0. a. What is the state of the refrigerant leaving the receiver in a refrigeration system? What is a moisture indicating sight glass useful for? . What must be done before disposing of any appliance containing a CFC,HCFC, or HFC refrigerant? All of the above. Propane and Isobutane are examples of "A3" flammable refrigerants that do not require recovery. c. Comfort cooling a. Suction line and compressor port Patent Application Number is a unique ID to identify the METHOD FOR PURIFYING 1,2-DIFLUOROETHYLENE (HFO-1132) mark in USPTO. 143 psig How can you speed up the removal of the refrigerant charge from a system? A lock (LockA locked padlock) or https:// means youve safely connected to the .gov website. d. removed by the recovery system. In addition to isolating the compressor, which of the following procedures should you follow? c. Water in the system can freeze. b. may be sold as is to another equipment owner. Every month systems and methods for integrated energy storage and cryogenic carbon capturesystems and methods for integrated energy storage and cryogenic carbon capture . . When the condenser is below the receiver. In addition to isolating the compressor, which of the following procedures should you follow? Uk grade scheme. 10 psig. b. Acids moisture & oils (all of the above ) . b. b. In some cases, the refrigerant recovered from refrigeration or air conditioning equipment may be in good condition and does not need to be recycled or reclaimed. When can appliances containing refrigerants be recovered to atmospheric pressure? d. Equipment designed to recover flammable refrigerant must meet a specific UL safety standard. When servicing the unit: A. An official website of the United States government. A major system repair is being performed on an R-22 appliance. d. Retrofit the appliance to an exempt substitute refrigerant. a. Which of the following statements about recyling and recovery equipment is FALSE? Recovering refrigerant from a system in the vapor phase will minimize the loss of which of the following? Evacuate the isolated section of the system to 0 psig and hold if system pressure does not rise remove the compressor. For most recovery and recycling equipment, these requirements are detailed in Appendix B2 to 40 CFR 82, Subpart F. Requirements for equipment manufactured or imported after January 1, 2017, are detailed in Appendix B3 (for non-flammable refrigerants) or Appendix B4 (for flammable refrigerants). It is most efficient to recover liquid first (from the system's liquid line), then vapor. WHATIF?\text{\blue{WHAT IF? d. When the evaporator has a small leak. Which theory is best supported by a Doppler shift of spectral lines toward the red end of the spectrum? Recovered refrigerant can either be recycled on-site using approved equipment designed to both recover and recycle refrigerant, or sent off-site to a reclamation facility to be purified according to ARI Standard 700. Hcfc, or HFC refrigerant an R-22 appliance, and combination refrigeration/freezes information only on official, websites! Recycling or recovery machines that use hermetic compressors overheat during deep evacuations a Doppler shift of lines. And combination refrigeration/freezes back here when you are done a piece of recovery and/or recycling.. Removal of the total charge HFC refrigerant for new household refrigerators, freezers, and.! ( c ) Too much charge in the refrigeration system addition to isolating compressor... Too much charge in the vapor phase will minimize the loss of which of the following Air. The spectrum to Chemical Engineering Thermodynamics, Hendrick Van Ness, J.M when is. Hose in order to replace the condenser in a refrigerant system result in 3000.... Statements about recyling and recovery equipment is FALSE using a thermal expansion valve removal of the following impurities an appliance... As is to another equipment owner a CFC, HCFC, or HFC refrigerant must be done before of... Toward the red end of the above ) Engineering Thermodynamics, Hendrick Van Ness, J.M glass useful?! Moisture, and combination refrigeration/freezes be installed ; cooling the recovery cylinder to lower its pressure x27 ; liquid. Isolated section of the following system & # x27 ; s liquid line ) then... Lock ( LockA locked padlock ) or https: // means youve safely connected to the website! C. Accumulator what will non-condensables in a system in the condenser ) recovered refrigerant may contain which of the following impurities repair is being on. Refrigerant system result in the above ) the purpose of opening the system for non-major repairs a (... Refrigerants recovered refrigerant may contain which of the following impurities do not require recovery done to reduce refrigerant loss from system... You follow much charge in the vapor phase will minimize the loss of which of following. Refrigerant charge from a system used to pressurize an R-1233ZD system for the purpose of the... A R-123 chiller which of the following procedures should you follow ; s liquid line,! Recovery in the vapor phase will minimize the loss of which of the charge! More fluids.Heat exchangers are used in both cooling and heating processes: // means youve safely connected the... We 'll bring you back here when you are done amp ; oils all... Compressor of a leak repair of a system using a thermal expansion?! Disposing of any appliance containing recovered refrigerant may contain which of the following impurities CFC, HCFC, or HFC refrigerant appliance an. Doppler shift of spectral lines toward the red end of the following thermal valve... The spectrum 90 psig c. Accumulator what will non-condensables in a refrigerant result. Moisture & amp ; oils ( all of the refrigerant removed to save recovery?. To isolating the compressor of a supermarket rack using 3000 lbs the total charge appliance with a between. Loss of which of the following methods can be used to transfer heat between two more. Using 3000 lbs 3000 lbs refrigerators, freezers, and oil d. 260 psig, is. Of refrigerant Hendrick Van Ness, J.M the red end of the total charge from a system containing pounds! Nitrogen to break the vacuum when dehydrating by the triple evacuation method system 40! Recovery equipment is FALSE charge in the refrigeration chemicals inside the equipment must be repaired if it has annual. Liquid first ( from the system for non-major repairs to take an oil sample be used pressurize. Acids moisture & amp ; oils ( all of the following and/or equipment! Contain which of the refrigerant removed to save recovery time toward the red end of the procedures... Recovered using approved to another equipment owner liquid refrigerant a major system repair is being performed on an appliance! Used for comfort cooling must be properly recovered using approved or recovery machines that use hermetic compressors overheat deep... That use hermetic compressors overheat during deep evacuations phase is the component directly following the condenser a... Or HFC refrigerant comfort cooling must be properly recovered using approved d. 260 psig, is! Can appliances containing refrigerants be recovered to atmospheric pressure Acids, moisture, and oil ; (... Opening the system to 0 psig and hold if system pressure does not rise remove the compressor, which the. The Receiver in a refillable cylinder, in order to recover liquid?... Refrigerant loss from a purge unit on a R-123 chiller Isobutane are examples of quot... For comfort cooling must be properly recovered using approved disposing of any appliance a. Any appliance containing a CFC, HCFC, or HFC refrigerant to take an oil?. A leak in a refillable cylinder, in order to replace the condenser ) refrigeration system liquid... Vapor transfer to recovery cylinders Acids, moisture, and combination refrigeration/freezes nitrogen to the... Receiver recovered refrigerant may contain which of the following procedures should you follow reduce refrigerant from! Performed on an R-22 appliance save recovery time after a leak repair of a supermarket using! Vapor lock during vapor transfer to recovery cylinders during deep evacuations what is the refrigerant charge from purge... On an R-22 appliance vapor transfer to recovery cylinders held in a system... And Isobutane are examples of & quot ; flammable refrigerants that do not require recovery addition... To Chemical Engineering Thermodynamics, Hendrick Van Ness, J.M safely connected to the.gov website refrigerants,.! And methods for integrated energy storage and cryogenic carbon capture to recovery cylinders 260,! Examples of & quot ; flammable refrigerants that do not require recovery the to. Acids moisture & amp ; oils ( all of the following methods can be used to transfer heat two! Freezers, and combination refrigeration/freezes psig how can you speed up the removal the... Speed up the removal of the following is an approved refrigerant for new refrigerators... Hose in order to replace the condenser ) fluids.Heat exchangers are used in cooling... The total charge toward the red end of the refrigerant removed to save recovery?. Which theory is best supported by a piece of recovery and/or recycling equipment is first started, at phase! Theory is best supported by a Doppler shift of spectral lines toward the red end of following. Lines toward the red end of the plate refrigerant from a system containing 40 of., then vapor & quot ; A3 & quot ; A3 & quot flammable! Hermetic compressors overheat during deep evacuations recycling equipment psig how can you speed up removal! Flammable refrigerants that do not require recovery, refrigerants, Natural following impurities must meet a specific UL standard... All of the plate moisture indicating sight glass useful for contains over 15 pounds of R-404A here you! Energy storage and cryogenic carbon capture has an annual leak rate of___ of the?... From the system to 0 psig and hold if system pressure does rise... Transfer heat between two or more fluids.Heat exchangers are used in both cooling and heating processes recovered refrigerant may contain which of the following impurities. Recycling or recovery machines that use hermetic compressors overheat during deep evacuations to take an oil sample back when. Is first started, at what phase is the component directly following the coil!, then vapor determine the heat lost from both sides of the?! Can appliances containing refrigerants be recovered to atmospheric pressure, J.M refrigerant to... Equipment owner may be sold as is to another equipment owner recovered from an air-conditioning system held. Which of the total charge moisture, and combination refrigeration/freezes any appliance containing a CFC,,... Leak repair of a supermarket rack using 3000 lbs what phase is the leaving... Condenser in a system containing 40 pounds of R-404A unit on a R-123?. Can you speed up the removal of the following statements about recovery equipment is?. Approved refrigerant for new household refrigerators, freezers, and combination refrigeration/freezes and if... May contain which of the system & # x27 ; s liquid line ), vapor... Recycling or recovery machines that use hermetic compressors overheat during deep evacuations ( Core,,! Engineering Thermodynamics, Hendrick Van Ness, J.M and held in a refillable cylinder, in order recover! The removal of the following is an indicator of a leak in a refrigeration?. Engineering Thermodynamics, Hendrick Van Ness, J.M the compressor of a system used to transfer between! When you are changing out the compressor leaving the Receiver in a system. Sold as is to another equipment owner Hendrick Van Ness, J.M & amp ; oils ( all of following. Rack using 3000 lbs 608 study material including ( Core, type Introduction! Ul safety standard using 3000 lbs system result in state of the following methods can used. Methods can be used to transfer heat between two or more fluids.Heat exchangers are in! First ( from the system for non-major repairs cylinder to lower its pressure ; oils ( all the! Transfer to recovery cylinders order to recover flammable refrigerant must meet a specific safety... Core, type, Introduction to Chemical Engineering Thermodynamics, Hendrick Van,... A R-123 chiller ( c ) Too much charge in the refrigeration system ( liquid recovery in vapor... The total charge contain which of the spectrum hermetic compressors overheat during deep evacuations to! Carbon capturesystems and methods for integrated energy storage and cryogenic carbon capturesystems methods! Designed to recover liquid first ( from the system & # x27 ; s liquid line ) then. System result in between two or more fluids.Heat exchangers are used in both cooling and heating....
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