TCR_digitalresources_composite

 

Learn More          

 

Can you answer these questions?

After installation of a field piped split system, the unit should first be pressurized with ___ and then leaked checked.

  1.  air 
  2.  R-22 
  3.  R-410A
  4.  nitrogen

Charging liquid R-2435fa into a low-pressure refrigeration system under a vacuum greater than 18 inches Hg vacuum can cause ___.

  1.  liquid to absorb excess moisture
  2.  purge unit to operate
  3.  system water to freeze
  4.  system water to boil

See answers below

 

 

Confidently Prepare for EPA Section 608 Technician Certification

Click here to see the certification test topics.

 

Technician Certification for Refrigerants from ATP helps technicians learn and prepare for certification in the safe and efficient recovery, storage, transportation, and charging of refrigerants. This 4th edition includes new information on climate-friendly alternative refrigerants, step-by-step procedural activities, and 465 certification test practice questions to successfully help you pass the certification exam.

Featured Updates Include:

  • Leak rate calculations and refrigerants for non-except substitute refrigerants
  • Evacuation requirements, HVAC equipment requirements, and the AHRI Standard for reclaiming requirements
  • Recycling and recovery equipment certification requirements for equipment produced after January 1, 2017
  • Canadian regulations for refrigerants

Answers

1-D

2-C