HVAC Certification Exam
The HVAC examination covers issues and compliance of the EPA 608 refrigeration recycling rules as specified in the Clean Air Act.

Some of the issues on the HVAC certification test are summarized below.

Core Issues:

  • Ozone depletion
  • Clean Air Act and Montreal Protocol
  • Section 608 Regulations
  • Substitute Refrigerants
  • Safety Issues


  • Refrigeration states and gauges
  • Definitions of recover, recycle and reclaim
  • Recovery and evacuation techniques
  • Shipping requirements






Type I Certification: servicing small appliances

  • recovery requirements including refrigerant identification techniques and passive recovery devices
  • definition of small appliances
  • recovery techniques
  • evacuation of small appliances with and without compressors
  • safety issues including high temperature decomposition products

Type 2 Certification: high pressure systems

  • leak detection
  • leak repair requirements
  • recovery techniques including methods for speeding recovery and avoiding cross contamination
  • recovery requirements including evacuation and disposal requirements
  • refrigeration identification and pressure temperature relationships
  • safety issues including equipment room requirements

Type III Certification: low pressure systems

  • leak detection including signs of leakage and order of preference for test pressurization methods
  • leak repair requirements including allowable annual leaks rates
  • recovery techniques including both liquid and vapor recovery and high pressure recovery device cut-out levels




  • recharging techniques including vapor introduction before liquid and charging of centrifugals
  • recovery requirements including disposal, major vs. non-major repairs and allowable methods
  • refrigeration including purpose of purge unit and P-T relationships of low pressure refrigerants
  • safety issues including ASHRAE Standard 15 requirements for equipment room





Summarized from:
(1)
Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2014-15 Edition, Heating, Air Conditioning, and Refrigeration Mechanics and Installers,
http://www.bls.gov/ooh/installation-maintenance-and-repair/heating-air-conditioning-and-refrigeration-mechanics-and-installers.htm
(2) US Environmental Protection Agency, Overview of Issues on EPA Certification Test,http://www.epa.gov/ozone/title6/608/technicians/certoutl.html
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