158 - Troubleshooting Variable Air Volume (VAV) Systems

(21 hours / 60 days)  Advanced

Written by Ron Auvil

Full Price: $609.00

Variable Air Volume (VAV) Systems are the most common type of large commercial HVAC System in use today. This course is designed for advanced level technicians and building maintenance personnel who are responsible for troubleshooting these Variable Air Volume (VAV) systems. This course will start with an in-depth overview of the history and types of VAV systems. Next up is a list of common needed troubleshooting tools. Control system components and layouts to include pneumatic and DDC are given. VAV air handling units and sequences of operation of all major types are covered in depth. The most common troubleshooting scenarios of VAV air handling units are described as well.

The vast majority of VAV terminal Box types are thoroughly covered, as well as components and control sequences. The course will finish up with and in-depth multiple field troubleshooting scenarios which are represented in detail. All scenarios are derived from actual service calls.

Upon completion of this course the technician will have been exposed to a minimum 75% of the most common service calls on VAV systems.

Prerequisite: Successful completion of BAS Program 153-157 or Equivalent Field experience.

No textbook is needed or used. Will be using field manual pdf’s from various vendors. Actual Job Prints will be used as needed.

This course is NATE recognized for 21 hours of continuing education (CEHs) which are applicable to NATE re-certification.

Modules cover:

  • Troubleshooting and Diagnostic Tools and Safety; Definition and Development of VAV
  • VAV AHU and Terminal Box Control Systems and Components
  • VAV Air Handling Units and Control Sequences
  • VAV Air Handling Unit Troubleshooting (Most Common Scenarios)
  • VAV Terminal Box Types and Control Sequences
  • VAV Terminal Box Types and Control Sequences – VAV Box Modes of Operation
  • VAV Terminal Box Troubleshooting Scenarios (Most Common Scenarios)

About The Instructor: Ron Auvil is a Staff Instructor for HVACRedu.net. He has 38 years of HVAC and Controls Experience. This includes 35 years teaching experience. He has worked as a senior controls technician for Johnson Controls. He has also taught HVAC controls classes across the United States for Johnson Controls, Honeywell, and others. He has written the definitive textbook on pneumatic and DDC control systems ‘HVAC Control Systems’ 3rd Edition, from American Technical Publishers.

Each course purchase allows 60 days enrollment to complete. Must obtain a 70% or higher to obtain CEU recognition. Course provides you with a Subject Matter Expert (mentor) to assist with questions and all course materials for the duration of the course.

Required Textbok not included with individule course sale: HVAC Control Systems, 4th Edition, by Ronnie J. Auvil American Technical Partners ISBN: 978-0-8269-0779-0

Full Price: $609.00