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Washington HVAC/Refrigeration System (EL06A) Contractor License

The HVAC/Refrigeration System (EL06A) Contractor License allows you to do the following work:

  • Install:
    • HVAC/refrigeration
    • Telecommunications
    • Class 2 low-voltage control circuit wiring and components (except in residential occupancies of more than three stories)
  • 30 volts and less control, and limited line voltage work within HVAC/R systems

How to Get the HVAC/Refrigeration System (EL06A) Contractor’s License in Washington?

  1. Be an electrical trainee or have equivalent out-of-state or military experience
  2. Meet the experience and training requirements (You can use the Washington Department of Labor & Industries' tool to verify the hours of experience):
    • HVAC/Refrigeration System (EL06A):
      • 4,000 hours of work experience related to the selected specialty as an electrical trainee
      • 48 hours of basic classroom instruction
      • Be supervised 75% of the time
  3. Fill out the corresponding application form for the electrical examination:
  4. Mail the application and the documents needed to certify the experience required for each license to:
    Electrical Licensing and Certification
    PO Box 44460
    Olympia WA 98504-4460
  5. Register to PSI© and schedule the examination once the application is reviewed by the Washington State Department of Labor & Industries. For further information on the test, refer to PSI©'s Electrical Certification Candidate Information Bulletin

Washington HVAC/Refrigeration System (EL06A) Contractor License Exam Prep Courses

Washington HVAC/Refrigeration System (EL06A) Contractor License Exams

Below is all the information related to the trade and WA Codes exams, including the official reference lists.

Washington HVAC/Refrigeration System (EL06A) Contractor Trade Exam

  • Testing Method: Computer-based testing
  • Testing Company: PSI©
  • Number of Questions: 34
  • Types of Questions: Multiple choice
  • Time Allowed: 120 Minutes
  • Minimum Passing Score: 70%
  • Subjects Involved (No. of Questions):
    • NEC 90 - Introduction (1)
    • NEC 100-110 - General Requirements (2)
    • NEC 200-225, 280-285 - Wiring & Protection (2)
    • NEC 240 - Overcurrent Protection (4)
    • NEC 250 - Grounding & Bonding (4)
    • NEC 300-398 - Wiring Methods (4)
    • NEC 400-427, 455-480 - Electrical Equipment (4)
    • NEC 430-450 - Motors, HVAC, Generators & Transformers (4)
    • NEC 490 - Equipment > 600 volts (1)
    • NEC 500-516 - Hazardous Locations (1)
    • NEC 600-695 - Special Equipment (1)
    • NEC 705-780 - Special Conditions (2)
    • General Trade Knowledge & Theory (4)
  • PSI© HVAC/Refrigeration System (EL06A) Official Content Outline

Washington HVAC/Refrigeration System (EL06A) Contractor WA Codes Exam

  • Testing Method: Computer-based testing
  • Testing Company: PSI©
  • Number of Questions: 17
  • Types of Questions: Multiple choice
  • Time Allowed: 60 Minutes
  • Minimum Passing Score: 70%
  • Subjects Involved (No. of Questions):
    • Washington Laws & Rules (RCW & WAC) (17)
  • PSI© WA Codes Official Content Outline

Washington HVAC/Refrigeration System (EL06A) Contractor Book Set

This set of books includes all required references for the HVAC/Refrigeration System (EL06A) and WA Codes exams. Orders placed before 2 PM are shipped the same day via UPS and a tracking number is emailed before 3 PM.

  • WASHINGTON HVAC/REFRIGERATION SYSTEM (EL06A) - BOOK SET WITHOUT TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS

    Sales price: $346.52

  • WASHINGTON HVAC/REFRIGERATION SYSTEM (EL06A) - BOOK SET WITH TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS

    Sales price: $396.52

Washington HVAC/Refrigeration System (EL06A) Contractor Exam Books

Books Allowed in Testing

Washington HVAC/Refrigeration System (EL06A) WA Codes Exam Books

Books Allowed in Testing

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