EPA TYPE 1
After installing and opening a piercing access valve, the recovery procedure cannot begin if the system is at what pressure?
0 psig
What is the maximum normal charge of HCFC or HFC refrigerant in an appliance that is allowed to use system dependent recovery equipment?
15 pounds
System-dependant devices may only be used on appliances containing3B
15 pounds of refrigerant or less.
What is the approximate pressure of a storage cylinder of recovered R-404A that does not contain any non-condensable impurities and is stored in a room where the temperature is 80F?
174 psig
What is the maximum allowable factory charge of refrigerant for Type I appliances using CFCS, HCFCS, or HFCS?
5 pounds
What is the maximum allowable factory charge of refrigerant for type I appliances using CFCS, HCFCS, or
5 pounds
What is the approximate pressure of a storage non-condensable impurities and is stored in a room where the temperature is 80 degrees. F. cylinder of recovered R-134a that does not contain any
87 psig
Recovery equipment manufactured after November 15, 1993 must be capable of recovering;
90% refrigerant or achieving 4 inches of vacuum.
If a strong odor is detected while performing the recovery process,
A compressor burnout has likely occurred.
When a pungent odor is detected during a sealed system recovery and/ or repair which of the following is most likely?
A compressor burnout has occurred
For which of the following refrigeration systems/appliances would it be permissible to use a passive recovery device for recovery of CFCS, HCFCS, and HFCS?
A domestic refrigerator
For which of the following refrigeration systems/appliances would it be permissible to use a passive recovery device for recovery of CFCS, HCFCS, and HFCS?
A domestic refrigerator.
All appliances must be equipped with a service aperture or process stub which is used when adding or removing refrigerant from appliance. What is typically used on small appliances
A straight piece of tubing that is entered using a piercing access valve.
All appliances must be equipped with a service aperture or process stub which is used when adding or removing refrigerant from the appliance. What is typically used on small appliances?
A straight piece of tubing that is entered using a piercing valve.
EPA section 608 rules require capture of 80% of the HCFCS and HFCS from a small appliance sealed system with non operating compressor if technicians are using;
A system dependant (passive) process.
What is defined as a non-condensable?
Air
Who must certify recovery equipment used during maintenance, service, or repair of small appliances that use CFCS, HCFCS, and HFCS?
An EPA- approved laboratory
Who must certify recovery equipment used during maintenance, service or repair of small appliances that use CFCS, HCFCS, and HFCS?
An EPA-approved laboratory.
Which of the following does NOT meet the criteria for type 1 appliance certification?
An MVAC like system that holds three pounds of R-12.
Which of the following does NOT meet the criteria for Type 1 appliance certification?
An MVAC-like system that hold three pounds of R-12
What type of appliances are technicians certified to charge and open after passing the Type 1 examination?
Appliances containing 5 pounds or less of refrigerant that have been hermetically sealed and charged at the factory.
A small appliance is defined by EPA as;
Appliances manufactured, charged, and hermetically sealed in a factory with 5 Lbs or less of refrigerant.
When pressurizing a system with nitrogen you should;
Both B and C
System-dependant or passive recovery equipment;
Captures refrigerant into a non-pressurized container with assistance of the appliance compressor.
Recovery equipment manufactured after November 15, 1993 must be;
Certified by an EPA approved testing laboratory.
Which recovery equipment maintenance practice should be preformed on a regular basis?
Check recovery device for refrigerant leaks.
Which of the following is true of small appliances refrigerant leaks;
EPA does not require repair, but leaks should be repaired whenever possible.
Self-contained or active recovery equipment;
Has its own means of recovery.
Which of the following is required when attaching a gauge set to check system pressure?
Have manual or self-sealing valves on the ends of the gauge set hoses to minimize any release of refrigerant.
Which hydrocarbon refrigerant is approved for retrofit into existing household refrigerators?
Hydrocarbons are not approved for retrofit applications
After the refrigerant has been recovered, which of the following can be used to flush the system?
Nitrogen
Permanent safety markings are NOT required on which of the following areas on household refrigerators using HC refrigerants.
On the inside of the refrigerator door.
Permanent safety markings are NOT required on which of the following areas on household refrigerators.
On the inside of the refrigerator door.
Permanent safety markings are Not required on which of the following areas on household refrigerator using HC refrigerants?
On the inside of the refrigerator door.
D. Dilute refrigerant. How many access valves are needed to recover the refrigerant on a sealed system with an operating compressor that has a completely restricted capillary tube?
Only one access valve, on the high side of the system.
How many access valves are needed to recover the refrigerant on a sealed system with an operating compressor that has a completely restricted capillary tube?
Only one access valve, on the high side of the system.
What gases can CFC and HCFC refrigerants decompose into at high temperatures, (e.g., open flames, glowing metal surfaces, ect.)?
Phosgene gas
Which of the following are included in EPA's definition of "small appliance"?
Products fully manufactured, charged and hermetically sealed in a factory.
Which of the following are included in EPA's definition of a "small appliance?"
Products fully manufactured, charged and hermetically sealed in a factory.
Which of the following statements about recycling and recovery equipment used for stationary refrigeration is FALSE.
Purchases of such equipment must be reported to the EPA.
New household refrigerators may be factory charged with any of the following refrigerants EXCEPT;
R-404A
New household refrigerators may be factory charged with any the following refrigerants, EXCEPT;
R-404A
refrigerant. New household refrigerators may be factory charged with any of the following refrigerants, EXCEPT.
R-404A
Which of the following is an approved substitute refrigerant for new household refrigerators, freezers, and combination refrigeration/freezers?
R-600a
Which of the following refrigerants is very high pressure and generally does NOT need to be recovered?
R-744
Equipment which is used to recover CFC, HCFC, and HFC refrigerant from small appliances for the purpose of disposal must meet what standard?
Recover 80% of the refrigerant with an inoperative compressor and 90% of the refrigerant with an operative compressor.
Recovery devices for use with small appliances containing CFCS, HCFCS, and HFCS must meet which of the following requirements?
Recovering 90% of the refrigerant when the compressor is operating or achieving a 4-inch vacuum under conditions of AHRI 740.
If after installing a fitting for the purpose of recovering the appliances refrigerant, you find that the system pressure is 0 psig;
Recovery is not required.
Which of the following is an acceptable method or device presently used for monitoring the 80% fill level in a recovery tank?
Refrigerant scale or tank internal float device
Which of the following is an acceptable method or device presently used for monitoring the 80% fill level in a recovery tank?
Refrigerant scale or tank internal float device.
Which refrigerants can be mixed in an appliance?
Refrigerants cannot be mixed.
When using nitrogen in repairing a sealed refrigeration system, what should the nitrogen tank always be equipped with?
Regulator
The sale of CFC, HCFC, HFC and HFO refrigerants to service or install refrigeration and air conditioning equipment is;
Restricted to technicians who are EPA certified refrigerant recovery.
When using a system-dependent recovery system on an appliance that has an operating compressor, the technician should;
Run the compressor and recover from the high side of the system.
Small appliances in recreational vehicles may use refrigerants such as Ammonia, Hydrogen, or water, and therefore;
The refrigerant should not be recovered.
When filling a charging cylinder with a regulated refrigerant;
The refrigerant vapor that is vented off the top of the cylinder must be recovered.
If regulations change after the technician becomes certified;
The technician is responsibility for complying with any future changes in the regulations.
Which of the following is a true statement regarding a refrigerant that can be used as a direct service "drop-in" substitute for R-22?
There is no such thing as a "drop-in" substitute.
which of the following is a true statement regarding a refrigerant that can be used as a direct service drop-in substitute for R-22?
There is no such thing as a "drop-in" substitute.
Which of the following is a true statement regarding a refrigerant that can be used as a direct service drop-in substitute for R-22.
There is no such thing as a drop-in substitute.
Which of the following best describes low loss fittings on refrigerant recovery devices used to recover CFCS, HCFCS, and HFCS?
They can be either manually closed or automatically closed when disconnected to prevent loss of refrigerant from hoses.
Why should low and high side access valves be installed when recovering refrigerant from a household refrigerator?
To prevent oil migration.
What may be done to speed the recovery process and ensure that all CFC, HCFC, or HFC refrigerant has been removed from a frost free refrigerator?
Turn on the defrost heater to increase the refrigerant's temperature and vaporize any liquid.
What may be done to speed the recovery process and ensure that all CFC, HCFC, or HFC refrigerants has been removed from a frost free refrigerator?
Turn on the defrost heater to increase the refrigerant's temperature and vaporize any liquid.
What should a technician do if the refrigerant in a recovery cylinder is suspected to be contaminated?
Turn refrigerant in for reclamation.
What type of certification is required for persons recovering CFCS, HCFCS, or HFCS during maintenance, service, or repair of small appliances?
Type I Technician or Universal Technician
Technicians who perform sealed system service on small appliances must have;
Type I or Universal certification..
Which of the following are recommended safe work practices when recovering refrigerants.
Wear safety eyewear and butyl-lined gloves when connecting/ disconnecting hose.
Which of the following are recommended safe work practices when recovering refrigerants?
Wear safety eyewear and butyl-lined gloves when connecting/disconnecting hoses.
Which condition requires accessing both the high and low side of the system for refrigerant recovery when using the system-dependent (passive) recovery process?
When the compressor does not run
Which condition requires accessing both high and low side of the system for refrigerant recovery when using system-dependant (passive) recovery process.
When the compressor does not run.
Which condition requires accessing both the high and low side of the system for refrigerant recovery when using the system-dependent (passive) recovery process?
When the compressor does not run.
Which condition can cause excessive pressure on the high side of a self-contained (active) recovery device?
When there is a large volume of non-condensable gas in the refrigerant being recovered
When is it essential to take measures to help release trapped CFC, HCFC, or HFC refrigerant from the compressor oil during refrigerant recovery.
When using passive recovery devices on small appliances with non-operating compressors.
with non-operating compressor if technicians are using; EPA Section 608 rules require capture of 80% of the HCFCS and HFCS from small appliance sealed systems
a system-dependent (passive) process.
Applying heat with a heat gun to the compressor;
can help vaporize any trapped liquid refrigerant during recovery.
A passive system-dependent recovery process for small appliances;
captures refrigerant in a non-pressurized container
When using a self-contained recovery device on a CFC, HCFC, or HFC system with an operating compressor, a technician must;
either recover the refrigerant to 4 inches of mercury vacuum or 90% of the nameplate charge.
When recovering CFC, HCFC, or HFC refrigerant into a non pressurized container from a household refrigerator with an inoperative compressor it is;
helpful to heat and strike the compressor with a rubber mallet.
Small appliances are equipped with a straight piece of tubing (process stub) used to;
install a piercing type access valve fitting
Before beginning a refrigerant recovery procedure, it is ALWAYS necessary to;
know the type of refrigerant that is in the system.
After recovering refrigerant, the Nitrogen used to flush the system may be:
legally vented.
After recovering refrigerant from a sealed system, if nitrogen is used to pressurize or blow debris out of the system, the nitrogen;
may be vented to the ambient air.
A standard vacuum pump designed specifically for evacuation and dehydration can;
never be used as a recovery device in combination with a pressurized container.
When servicing a small appliance found to be leaking it is;
not mandatory to repair the leak but it is recommended to do so whenever possible.
Type I Certification is required for;
persons handling refrigerant during maintenance, service, or repair of small appliances
The system dependant (passive) recovery process;
recovers refrigerant in a non-pressurized container.
The sale of CFC,HCFC, HFC, and HFO refrigerants to service and or install refrigeration and air conditioning equipment;
restricted to technicians who are EPA certified in refrigerant recovery.
When R-410A id recovered from an appliance, it;
should be recovered into a recovery vessel that is clearly marked to ensure that mixing of refrigerants does not оссur.
have at least one self-contained recovery machine available for use. The exception to this rule are persons Any person who opens a appliance containing a CFC, HCFC, or HFC for maintenance, service or repair must working on;
small appliances
When installing any type of access fitting onto a sealed system;
the fitting should be leak tested before proceeding with recovery.
