Study 2 Type I: Small Appliances with 12 free online flashcards. Review key terms, definitions, and concepts with this interactive flashcard deck.
What qualifies as a Type I small appliance?
A small appliance is factory-manufactured, factory-charged, and hermetically sealed, with 5 pounds or less of refrigerant. Examples include household refrigerators, window air conditioners, dehumidifiers, and water coolers.
What is self-contained recovery equipment?
Self-contained, or active, recovery equipment removes refrigerant without relying on the appliance’s components.
What must be done before opening a small appliance for service?
Recover the refrigerant using the applicable method before opening a small appliance for service.
What recovery percentage applies to equipment made before November 15, 1993?
For recovery equipment manufactured before November 15, 1993, recover 80% of the refrigerant, regardless of compressor condition.
Why might a technician attach a solderless access fitting?
A solderless access fitting can be attached to process tubing to connect recovery equipment when the appliance lacks permanent service valves.
What should be done with a solderless access fitting when service is complete?
At the end of service, remove solderless access fittings, restore the sealed system appropriately, and check for leaks.
How should a working compressor be used during passive recovery?
When using system-dependent recovery, operate the appliance’s functional compressor to help move refrigerant toward the recovery connection.
Which refrigerant is a likely substitute for older R-12 applications?
R-134a is a likely substitute to recognize for older R-12 applications.
Why should refrigerants not be exposed to high temperatures?
Avoid exposing refrigerants to high temperatures; decomposition can produce hazardous substances. Never use an open flame to heat an appliance.
What is system-dependent recovery equipment?
System-dependent, or passive, recovery equipment relies on appliance components, such as a working compressor, to move refrigerant.
What recovery percentage applies to newer equipment with a working compressor?
For equipment manufactured on or after November 15, 1993, recover 90% when the appliance compressor is functional.
What recovery percentage applies to newer equipment with a failed compressor?
For equipment manufactured on or after November 15, 1993, recover 80% when the appliance compressor is not functional.
A medium-difficulty quiz on EPA pressure categories, refrigeration-cycle components, pressure behavior, and safety hazards.
Learn how refrigerant families differ in applications, environmental effects, operating conditions, safety classifications, equipment compatibility, and handling requirements.
Learn how refrigerants affect ozone and climate, how regulations govern their use and release, and what environmental and safety factors shape refrigerant selection.
A medium-difficulty quiz on locating refrigerant leaks, performing repairs safely, verifying system integrity, and applying relevant regulatory requirements.
A medium-difficulty quiz on applying safe refrigerant-handling practices, including hazard recognition, protective measures, leak response, and exposure response.
A quiz on safe evacuation, dehydration, and vacuum verification for refrigeration circuits.
A 14-question quiz on safe, compliant recovery procedures for small appliances, including equipment selection, recovery targets, and refrigerant handling.
Practice chiller recovery, safety checks, endpoint verification, and service documentation. Follow equipment-specific procedures and applicable requirements.
A practical framework for safely recovering refrigerant from chillers, verifying recovery and dehydration endpoints, troubleshooting problems, and documenting service work.
Practice applying refrigerant compliance rules to equipment identification, refrigerant handling, technician qualifications, transfers, and recordkeeping.
A practical guide to checking refrigerant rules, assigning work appropriately, preventing releases, handling recovered refrigerant, and keeping the records required for specific jobs.
A medium-difficulty quiz on identifying small appliances and applying Section 608 service, recovery, leak-check, and disposal practices.