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Advanced Air Conditioning & Refrigeration for Facilities Maintenence

HVAC

Course Number: ACR-303

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*only available at the MTI Hands-on Training Center*

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Course Description:

Created to bring students up to speed in their skills and knowledge as quickly and safely as possible to perform basic servicing and troubleshooting of air conditioning and refrigeration associated with commercial buildings. The practical, common sense approach used in this course makes it perfect for novice technicians and experienced HVAC technicians alike.  Anyone who needs to understand the basic operation, maintenance, and troubleshooting of air conditioning and refrigeration systems for commercial or residential locations will benefit. Since 80% of AC& R problems are electrically related, the section on electrical troubleshooting is unique to this course and not offered elsewhere.

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Each student will receive class books, work activity sheets, self-test progress evaluations, as well as questions from the instructor to make sure they understand the material presented. It is expected that an attendee will leave the class with the basic knowledge of the subject and possess new found skills to better equip them when they return to their job. A certificate suitable for framing will be issued to each attendee who successfully completes the course.  ACR-303 builds on ACR-302 with additional emphasis on electrical and control troubleshooting.

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*ACR-303 builds on ACR-302, with an additional focus on control systems and troubleshooting.

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Hands-on activities:
50% hands-on activities

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3-day course: $1395 per person

Course Syllabus

ELECTRICAL TROUBLESHOOTING AC&R

  • Transformers

  • Circuit protection

  • Motor basics for single and three phase systems

  • Capacitors, starters, thermostats

  • Motor controls

 
TEMPERATURE AND PRESSURE

  • Measuring temperature and pressure

  • The Gas Laws

 
BASIC REFRIGERATION CYCLE

  • Refrigeration systems and components

  • Evaporating and Condensing units

  • Suction accumulator

  • Filter driers

 
REFRIGERANTS

  • Halide refrigerants

  • Refrigerant numbering system

  • Refrigerant cylinder codes

  • Selecting a refrigerant

 
REFRIGERANT RECOVER AND RECYCLING

  • The Clean Air Act

  • Refrigerant leaks

  • The three “Rs” – Recover, Recycle, Reclaim

  • Record keeping

  • Certification requirements

  • Recovery procedures

  • Recycle equipment

 
ZEOTOPIC BLENDS

  • Pure refrigerants, mixtures and blends

  • Temperature-pressure card

  • Retrofit procedures

 
TROUBLESHOOTING REFRIGERANT PROBLEMS

  • Moisture, air and contaminants

  • Leak detection

 
WORKING WITH CONTROLS AND VALVES

  • Check valves, solenoid valves, EPR valve

  • Controlling head pressure

 
FLOW CONTROLS

  • AEV, EPR, and TEV

  • Capillary tube system

  • Hot gas and other by-pass valves

 
COMPRESSORS

  • Types of compressors

  • Adding refrigerant oils to compressors

  • Oil separators

  • Determining compressor efficiency

 
SMART DECISION MAKING

  • Making a replacement vs repair decision

  • Should you do the work or send it out?

  • Life expectancy of critical parts

  • Locating items for obsolete” equipment

 
HANDS-ON EXERCISES

  • Installing and removing a manifold gauge set

  • Measuring superheat and subcooling

  • Recovering the refrigerant from a system

  • Evacuating (pulling a vacuum)

  • Charging a system by weight and by superheat

  • Performing a “pump-down”

  • Working with service valves and Schraeder cores

  • In-depth electrical and controls troubleshooting

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*ACR-303 builds on ACR-302, with an additional focus on control systems and troubleshooting.

Course Pictures

What did you read it at?

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You can read it pretty close:

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I got that reading too!

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This makes sense.

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Static vs Dynamic Pressure:

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