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Purpose of Seminar:
Providing comfort to the people in your building is what this seminar is all about.
And whether you are blowing heated or cooled air, keeping the temperature consistently
comfortable for them is dependent upon you properly managing your HVAC electrical
controls and air distribution systems. So we’ve designed this course to help you do
just that. During this seminar students will learn how to “control” their controls,
and how to use fundamental air distribution principles for achieving consistent HVAC
comfort and efficiency in buildings, plants and facilities.
Who should take this course?
This course is designed for anyone working on HVAC controls and air distribution systems,
or who are responsible for keeping comfortable working or living conditions in their buildings. Attendees come from a wide variety of industries, skill-levels, company sizes and educational
backgrounds. This course is also great for cross-training technicians who work in multi-craft
environments! So if you’re not sure if you will fit in or will benefit from these classes,
don’t worry – you will – as long as your work involves HVAC!
People who will benefit from this seminar include any Building Maintenance Technician
(both experienced and apprentice), their Supervisors, and Building Owners, Managers &
Engineers working in…
- Commercial Buildings
- Schools
- Hospitals
- Manufacturing Plants
- Research Facilities
- Government Buildings
- Office Buildings
- Multi-Family Buildings
- …or any other facility with an HVAC system!
Training Outcomes
Upon completion of this course, students will receive a training certificate
and .8 Continuing Education Units for each day attended (1.6 credits
for 2 days), indicating that the student has learned to:
- Identify a problem as being Electrical, Mechanical or an Air Distribution issue
- Understand the basics of electricity as it applies to HVAC systems
- Read HVAC ladder diagrams and wiring diagrams
- Troubleshoot line voltage and low voltage problems
- Properly test operating controls and safety controls
- Troubleshoot air conditioning & heat pump systems
- Specify the correct air handling equipment required for the job
- Properly size HVAC air ducts
- Determine how many CFM are needed for your system
- Determine the air mixture condition at the cooling coil
- Understand the benefits and disadvantages of "short cycling"
- Control noise problems
- Avoid air conditioning drafts
- Test air handling equipment
And to be 100% certain you get the training you need, students are
encouraged to bring control and wiring diagrams or case studies
from their own facility! If you have a unique problem or situation,
just let our instructor know. If he can’t help you with your
specific problem, we’ll refund your money – guaranteed!
Course Outline / Agenda
DAY 1
HVAC CONTROL BASICS, TROUBLESHOOTING & TESTING
OVERVIEW
HVAC system problems can be divided into three major categories - Air Distribution,
Electrical or Mechanical. The part that causes most service headaches is the
electrical portion, and most of that can be traced back to control problems. So day
1 of this seminar concentrates on overcoming the most common service problems
encountered in HVAC systems by teaching students to understand, troubleshoot and test
HVAC Electrical Controls.
During this seminar, students will learn the basics of electricity including Ohm’s
law and how simple series and parallel circuits are used in HVAC systems. They will
learn how to troubleshoot both line voltage and low voltage in their systems. They
will learn how to identify an electrical problem and determine a solution for it by
testing both operating controls and safety controls. Specific situations unique to
air conditioning and heat pumps will be discussed as well. Students leaving after
the first day of this seminar will be confident in their HVAC electrical control
knowledge and armed to go back to their workplace to immediately apply what they
have learned!
DISCUSSION TOPICS
- Basic Electricity
- Basic Electricity & Ohm’s Law
- Meters & Tools for Taking Electrical Measurements
- Electrical Circuits
- Control Circuits
- Schematics
- Ladder Diagrams
- Developing Wiring Diagrams
- Controls
- Overloads
- Relays
- Contactors
- Control Transformer
- Starting Relay
- Defrost Timer
- Thermostat
- High Pressure Control
- Low Pressure Control
- Oil Pressure Control
- Troubleshooting
- General Troubleshooting Techniques
- Common Problem Areas
- Commercial Air Conditioning
- Heat Pump Control
- Pump Down Cycle
DAY 2
Practical Solutions for Air Distribution
OVERVIEW
Many common problems found in HVAC systems are relatively easy to
correct, but are often overlooked. These problems are not
electrically related at all even though many times we can get
tricked into thinking they are. Yet a non-electrical problem can
be as frustrating to find and fix as an electrical one, and may be
even more discomforting to the people who have to live with it.
So the second day of this seminar concentrates on the most often
overlooked and ignored problems in HVAC systems – the "V" in "HVAC"
– or ventilation, air distribution and air balancing!
We have all heard the complaints of "too hot", "too cold", "not
enough air" or "I feel a draft". So in this second day of the
seminar students will learn how to solve the problems that cause
people to say these things. Students will learn how to handle a
problem like when one area is cooling, but another is not; why 400
cfm per ton is important and why it is used; how refrigerant piping
affects air conditioning performance; how to determine proper blower
and duct sizes for your system; what to do when you have an
undersized duct; what causes noise in a system and the tricks you
can use to control it; how to troubleshoot and perform tests on air
handling equipment, exhaust fans and air make-up equipment; how to
properly balance an air system for ideal comfort – and so much more.
The primary goal of this day is to help you minimize the complaints
heard from the people working or living in your building. Once
completed, students leaving this class will have all that they need
to handle any complaint that may come their way.
DISCUSSION TOPICS
- Determining and Improving Air Flow
- 400 cfm per ton
- How many square feet per ton?
- Air mixture at the cooling coil
- Exhaust Air
- Positive pressure
- Negative pressure
- Make-Up Air
- Positive pressure
- Negative pressure
- Conditioning the make up air
- Troubleshooting the Air Distribution System
- Temperature difference across the coil
- Balance in the system
- Short cycling
- Duct sizing
- Noise
- How to use a Ductulator
What You Will Take Home
• American Trainco Seminar Manual - detailing all presentation
material covered in the class.
• Personalized Training Certificate with 0.8 CEUs (Continuing Education Units) for
each day attended or 1.6 CEUs for both days. American Trainco
CEUs are approved by the MTAA and ACE.
• All the information you need from asking our instructors specific
questions about your own equipment or facility.
CEUs, Testing & College Credit
CEUs
After completion of this class,
students will receive a Certificate of Completion and 1.6 CEUs (Continuing
Education Units) for both days of training approved by the Maintenance
Training Association of the Americas and The
American Council on Education.
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