Supermarket Learning Program

Supermarket Learning Program

About Course

This program, aimed at refrigeration professionals (technicians) who possess field experience and aim to eliminate stress on job sites, provides comprehensive supermarket refrigeration training. Our continuing education program is meticulously designed to enhance your understanding of installations, servicing, and troubleshooting various supermarket refrigeration systems. Through this supermarket refrigeration course, you will gain the knowledge and skills necessary to excel in your field. The program will significantly improve your expertise, competency, and confidence when working with parallel racks, secondary systems, cascade systems, as well as medium and low-temperature condensing units.

I created this learning program from the years of supermarket and commercial field experience and knowledge pass down to me from subject matter experts.  If you are looking to become the top technician at your company this course will help you get there.  

Supermarket Refrigeration

this Program Includes

Learning modules will consist of 3 major activities with measurable goals to keep you on track:


Refrigeration Fundamentals & System Designs

Section 1: Basic Refrigeration and Fundamentals
How refrigeration works
• Basic components of a refrigeration system
• Compressor, condenser, metering device and evaporator overview 
• Review on pressure enthalpy diagram 

Section 2: Secondary Systems
• Introduction & overview
Equipment and components
• Review how secondary pump systems work and understand their functionality

Section 3: Cascade Systems
Introduction & overview
Equipment and components
• Review how cascade systems work and understand their functionality

Section 4: Parallel Rack System
Introduction & overview
• Equipment and components
• Review how parallel systems work and understand their functionality

Section 5: CO2 Booster Systems
Review CO2 booster system piping and instrumentation diagram (P&ID)

High Pressure Side Components

 Section 1: High Pressure Safety Switches
• Different designs and types
• How to Install them, set each one up, and troubleshooting

Section 2: Understanding Oil Management
Understanding the different oil system designs
• Oil separator
• Oil receiver
• Oil filter
• Oil level controls
• Oil solenoids 
• How the oil system is controlled
• Discuss how to properly install, service and troubleshoot these components
• How to properly add oil to the system

Section 3: Pressure Reliefs
Standard pressure settings
• Where they are in the system
• How to install, inspect and replace

Section 4: Condensers
How they are designed and function
• Learn about the different head pressure controls used
• Types of motors they use
• Setting up a condenser
 Troubleshooting condenser

Section 5: Heat Reclaim
What does heat reclaim do?
• Types of heat reclaim systems 
• How heat reclaim systems are designed and function
• Performance and efficiency 
• Function of 3-way heat reclaim valves and how they work
• How to control and setup a heat reclaim system
• Servicing & troubleshooting heat reclaim systems 

Section 6: Head Pressure Controls
What is the purpose of using head-pressure controls?
 What are the different head pressure control options?
• How they are designed and function
• Review of A8, A9, OROA, ORI-6, ORD, LAC-4-DS 
• Why setting up and controlling is very important.
• Servicing & troubleshooting

Low Side System Components

Section 1: Thermal Expansion Valves (TEV’s
 The basics TEVs
• Understanding the different designs and functions
• Installing, servicing, and troubleshooting TEV’s

Section 2: Electronic Expansion Valves (EEVs)
 What you need to know about electronic expansion valves?
• The basics EEVs
• Understanding the different designs and functions of EEVs

Section 3: Evaporators – Cases & Coils 
• Components inside case or coils
• Installation service and troubleshooting

Section 4: Evaporator Pressure Regulating Valves (EPR’s)
• Different designs and types
• Mechanical
• Electronic
• Installation, service, and troubleshooting

Sections 5: Accumulators
 The purpose of an accumulator
• How they work and where you will find them in the system
• Troubleshooting accumulators

Section 6: Low-Pressure Safety Switches
• Different designs and types
• How to install them, set each one up, and troubleshooting

 Section 7: Subcoolers
What is the purpose of Subcooler?
Types of subcooling systems 
• How Subcoolers are designed and function
• Performance and efficiency 
• How to control and setup a Subcooler
• Servicing & troubleshooting Subcoolers

Service, Maintenance & Troubleshooting

Section 1: Defrosting Cases & Coils
Types of defrost (Hot gas, Kool gas, Electric, Off time)
• How each defrost type works 
• Setting up defrost schedule
• Troubleshooting frozen coils and defrost systems

 Section 2: Service Procedures
Understanding how to pump down a rack
• Steps and procedures to complete a pump down and things to watch out for
How to properly pump out a case or coil for field repair and start up
• How to replace a valve, compressor, components, oil controls and motors

Section 3: Sequence of Operation
Compressor Staging
• Oil Management 
• Heat Recovery
• Head Pressure Controls
• Subcooler
• Defrost Cycles
• System and Circuit Pump down 

Section 4: System Maintenance Procedures
Why system maintenance is so important
• How to take an oil sample
• How to check and test the oil separator coalescent filter element, oil line filter driers, liquid line filter drier cores and suction line filters
How to test and calibrate temperature probes and pressure transducers
• How to test and check the operation of the safety devices such as pressure switches, bleed solenoid valves, and pressure relief valves
• How to properly clean condenser fins, water spay systems, water pads, evaporators coils, case honeycombs and other components 

Section 5: System Troubleshooting
Pressure control trips
• Temperature too high or low
• Compressor issues
• Oil issues
• Condenser issues
• Evaporator fan or case issues
• Defrosting issues
• Heat recovery issues
• Head pressure controls troubleshooting
• Subcooler issues
• Defrosting issues
• Air flow issues


people who experienced

I enjoyed and really liked Trevor’s interactive teaching, always getting the class involved and always so enthusiastic! I’ve already had coworkers come up to me and ask me how to check net oil pressure or how to check for blow by and I’ve told them with absolute confidence how to check each.

Jetzael Munoz

The interaction from fellow technicians during the course giving some of their onsite experiences. Along with Trevor’s detailed answers on what we should look for while doing pms before the failure occurs. Trevor explained the use of the many resources out there and took the time to explain in great detail. I would highly recommend this course to anyone who wants to take their skills to the next level.

Ben Klesta

What a really like about this program was the depth of knowledge that was presented to the class. This information was spread across multiple brands and covered various compressor sizes and applications that we would see in the field. Hands down best refrigeration class I’ve ever been to, I recommend going through this program at least once a year to stay fresh on the topics at hand.

Bill Russell

In the program there was people from different parts of North America – USA/Canada with different experiences and backgrounds that brought a blend of educational and interesting observations through out the course.

Frank Parise

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