The Mendes Training Center
at General Refrigeration Company
Please see below to register for all currently scheduled classes.
As a RETA Network Test Center, you can take your CARO, CIRO, CRST, CRES and RAI tests at our facility!
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Currently Scheduled Classes
Register Today!
Expand the course information to view detailed information about the course and to register.
Registration fees include class materials listed, lunch, and a morning and afternoon snack break.
**A non-refundable $250/participant deposit is included in the course price.**
Basic Electricity 1 & 2 - April 6 - 10, 2026 +
Build the electrical foundation every industrial refrigeration operator needs. Basic Electricity I & II is a practical, non-mathematical training program designed specifically for industrial refrigeration personnel. This course delivers a clear understanding of electrical fundamentals and how they apply directly to refrigeration systems, controls, and troubleshooting. Whether you are new to the industry or looking to strengthen your electrical knowledge, this course provides the essential skills needed to work safely and confidently with electrical components and control circuits.
Course Overview
The program covers the fundamental principles of electricity, including:
- Electron Theory – Understanding how electricity flows
- AC and DC Current – Differences, characteristics, and applications
- Voltage and Resistance – Basic electrical relationships
- Circuit Components – Conductors, insulators, capacitors, and related devices
- Magnetism – Basic magnetic principles and their role in motors and controls
Electrical Diagrams & Control Fundamentals
A key focus of the course is teaching participants how to read and interpret ladder diagrams, including:
- Fundamental lines and electrical symbols
- Control circuit layouts
- Power vs. control circuits
Participants also learn the principles of operation and symbols for common refrigeration control components such as:
- Switches
- Timers
- Potential devices
- Alarm circuits
- Defrost cycles
Practical Applications
The course emphasizes real-world industrial refrigeration systems, including:
- Understanding control sequences
- Identifying electrical faults
- Basic troubleshooting techniques
- Proper use of electrical measuring tools
- Electrical safety best practices
Outcome
Upon completion, participants should be able to:
- Understand fundamental electrical concepts
- Safely work with refrigeration electrical systems
- Read and interpret ladder diagrams
- Recognize and troubleshoot common control circuit issues
Who Should Attend
- Industrial refrigeration operators
- Maintenance technicians
- Plant engineers
- Entry-level refrigeration personnel
- Anyone seeking a stronger foundation in electrical controls
Course Benefits
- Gain confidence working with electrical systems
- Improve troubleshooting accuracy and speed
- Reduce downtime through better fault diagnosis
- Strengthen safety awareness and compliance
- Build a solid foundation for advanced electrical training
COST - $1,850
Course taught by a RETA Authorized Instructor and SCS Engineers
Industrial Refrigeration 3 - April 20 - 24, 2026 +
DESCRIPTION
This course is an intensive five-day training course that continues in the theory and operation of the ammonia refrigeration cycle and associated equipment. It concentrates on the troubleshooting, maintenance, and repair of associated equipment.
SCOPE
This course covers:
- Safety
- Compressors
- Oil Analysis
- Condensers and Cooling Towers
- Vessels, Piping, Valves, and Controls
- Insulation
- Evaporators and Heat Exchangers
- Pumps and Transfer Systems
- Purgers
- Electrical Service, Motors, Motor Starters & Variable Frequency Drives
- Controls Maintenance
- Shaft & Bearing Maintenance
- Leak Monitoring and Detection
WHO SHOULD ATTEND
This course is designed for facility refrigeration personnel and Refrigeration or Maintenance Technicians who have completed the Industrial Refrigeration 1 & 2 courses.
This course will allow your personnel to earn up to 36 PDH towards their RETA credentials.
COST - $1,725
Includes Industrial Refrigeration 3 coursebook, Course Exam and Course Certification upon completion.
Course taught by a RETA Authorized Instructor and SCS Engineers
Basic Electricity 1 & 2 - August 24 - 28, 2026 +
Build the electrical foundation every industrial refrigeration operator needs. Basic Electricity I & II is a practical, non-mathematical training program designed specifically for industrial refrigeration personnel. This course delivers a clear understanding of electrical fundamentals and how they apply directly to refrigeration systems, controls, and troubleshooting. Whether you are new to the industry or looking to strengthen your electrical knowledge, this course provides the essential skills needed to work safely and confidently with electrical components and control circuits.
Course Overview
The program covers the fundamental principles of electricity, including:
- Electron Theory – Understanding how electricity flows
- AC and DC Current – Differences, characteristics, and applications
- Voltage and Resistance – Basic electrical relationships
- Circuit Components – Conductors, insulators, capacitors, and related devices
- Magnetism – Basic magnetic principles and their role in motors and controls
Electrical Diagrams & Control Fundamentals
A key focus of the course is teaching participants how to read and interpret ladder diagrams, including:
- Fundamental lines and electrical symbols
- Control circuit layouts
- Power vs. control circuits
Participants also learn the principles of operation and symbols for common refrigeration control components such as:
- Switches
- Timers
- Potential devices
- Alarm circuits
- Defrost cycles
Practical Applications
The course emphasizes real-world industrial refrigeration systems, including:
- Understanding control sequences
- Identifying electrical faults
- Basic troubleshooting techniques
- Proper use of electrical measuring tools
- Electrical safety best practices
Outcome
Upon completion, participants should be able to:
- Understand fundamental electrical concepts
- Safely work with refrigeration electrical systems
- Read and interpret ladder diagrams
- Recognize and troubleshoot common control circuit issues
Who Should Attend
- Industrial refrigeration operators
- Maintenance technicians
- Plant engineers
- Entry-level refrigeration personnel
- Anyone seeking a stronger foundation in electrical controls
Course Benefits
- Gain confidence working with electrical systems
- Improve troubleshooting accuracy and speed
- Reduce downtime through better fault diagnosis
- Strengthen safety awareness and compliance
- Build a solid foundation for advanced electrical training
COST - $1,850
Course taught by a RETA Authorized Instructor and SCS Engineers
Industrial Refrigeration 1 - September 14 - 18, 2026 +
DESCRIPTION
This course is a 4½ day foundational course that will help individuals become knowledgeable and proficient in refrigeration systems. This course also includes a review of materials covered on the CARO exam.
SCOPE
This course covers:
- Safety
- Refrigeration Fundamentals
- Refrigeration Cycle
- Properties of Refrigerants & Safety
- Saturated Refrigerant Tables
- Operation & Maintenance
- Lubrication
- Evaporators & Cooling Units
- Condensers & High Pressure Receivers
- Purging
- Electrical and Fire Safety, Additional Worksheets on CARO Fundamentals
WHO SHOULD ATTEND
This course is designed for Maintenance Managers, plant refrigeration personnel, entry level Refrigeration or Maintenance Technicians, and Plant Engineers with limited refrigeration experience.
This course will aid in reinforcing skills and topics covered on the RETA CARO Certification.
COST - $1,600
Includes Industrial Refrigeration 1 coursebook, Course Exam and Course Certification upon completion. This course does not include registration for the CARO Exam.
Course taught by a RETA Authorized Instructor and SCS Engineers
Industrial Refrigeration 2 - September 28 - October 2, 2026 +
DESCRIPTION
This 4½ day course builds upon concepts taught in Industrial Refrigeration 1, including liquid feed to evaporators and vessels, direct expansion evaporators, gravity flooded evaporators, pumped liquid re-circulation systems, secondary refrigerants, heat exchangers and pressure enthalpy diagrams, and two-stage and defrost systems.
This course also includes a review of materials covered on the CIRO exam.
SCOPE
This course covers:
- Heat Flow in Refrigeration Systems
- Enthalpy
- Introduction to the Air / Water Relationship – The Psychrometric Chart
- Low-Side Liquid Feed Valves & Controls
- Direct Expansion Systems
- Liquid Overfeed Systems
- Gravity Flooded Systems
- Secondary Coolant Circulation Systems
- Two Stage Systems
- Evaporator Defrost
- Screen Shots, CARO Fundamentals, and Formulas
- Electrical terminology, switches and load devices, symbols, and ladder logic
WHO SHOULD ATTEND
This course is designed for facility refrigeration personnel, Refrigeration or Maintenance Technicians, and Plant Engineers who have completed the Industrial Refrigeration 1 course or have a higher-level understanding of industrial refrigeration systems. The RETA CIRO examination draws from this coursebook for test content, though not exclusively.
This course will aid in reviewing materials for the RETA CIRO Certification.
This course will allow your personnel to earn up to 36 PDH towards their RETA credentials.
COST - $1,650
Includes Industrial Refrigeration 2 coursebook, Course Exam and Course Certification upon completion. This course does not include registration for the CIRO Exam.
Course taught by a RETA Authorized Instructor and SCS Engineers
Industrial Refrigeration 3 - November 9 - 13, 2026 +
DESCRIPTION
This course is an intensive five-day training course that continues in the theory and operation of the ammonia refrigeration cycle and associated equipment. It concentrates on the troubleshooting, maintenance, and repair of associated equipment.
SCOPE
This course covers:
- Safety
- Compressors
- Oil Analysis
- Condensers and Cooling Towers
- Vessels, Piping, Valves, and Controls
- Insulation
- Evaporators and Heat Exchangers
- Pumps and Transfer Systems
- Purgers
- Electrical Service, Motors, Motor Starters & Variable Frequency Drives
- Controls Maintenance
- Shaft & Bearing Maintenance
- Leak Monitoring and Detection
WHO SHOULD ATTEND
This course is designed for facility refrigeration personnel and Refrigeration or Maintenance Technicians who have completed the Industrial Refrigeration 1 & 2 courses.
This course will allow your personnel to earn up to 36 PDH towards their RETA credentials.
COST - $1,725
Includes Industrial Refrigeration 3 coursebook, Course Exam and Course Certification upon completion.
Course taught by a RETA Authorized Instructor and SCS Engineers
Traveling from out of town? General Refrigeration has a corporate rate setup of $86/night + taxes/fees.
(subject to availability)
Holiday Inn Express & Suites
30232 Lighthouse Square Dr
Delmar, MD 21875
(410) 896-9633
*hotel is 4.7 miles from Mendes Training Center*