On-Site Training

Operator I (NH3AO) – CARO Review Course

Class Details

Class Length

4 Days - 32 Hours


Inclusive Cost

$1,650 - per student.

Includes lunch each day, Test and Training Certification upon completion.

Paid Registration must be 3 weeks in advance to hold your seat.


Class Summary

This foundational course is for entry-level refrigeration or maintenance technicians and engineers seeking essential knowledge in ammonia refrigeration systems. Based on the RETA Industrial Refrigeration I Training Manual, it covers key topics from PSM history to system operation, preparing students for the CARO test and daily job duties.


Prerequisites

  • There are no minimum experience requirements

Training Materials

This training is based on RETA Industrial Refrigeration I Training Manual (IR-I)

This book covers the basics of refrigeration including basic math skills, pressures, temperatures, pressure-temperature relationship, heat, heat calculations, properties of refrigerants, refrigeration cycle, industry terms, and lubricants.

Students will receive a Hard Copy Workbook, along with the RETA IR-1 Manual for reference material to perform your daily job duties.


Included Training Topics

  • PSM History/ Requirements – PSM and RMP Overview
  • Introduction - History of Releases – Why PSM? Union Carbide, Bhopal industry, Phillips 66 – Texas. Dupont
  • Ammonia Awareness Training / HAZCOM
  • HAZCOM (Hazards of Exposure) 23-25 things about ammonia.
  • Refrigeration Fundamentals
  • Refrigeration Cycles
  • Properties of Refrigerants
  • Read tables
  • Troubleshooting
  • Refrigerant Tables
  • Types of Refrigerant Compressors
  • Lubrication
  • Operation and Maintenance of Refrigeration Systems
  • SOPS
  • Daily Rounds
  • PIDS
  • Role of Operator
  • U Factor
  • Oil Heaters
  • Foaming of Oil
  • Slug
  • Starting up new plants
  • Log sheets
  • Evaporators and Cooling Units
  • DX (1 hour)
  • Recir (1 hour)
  • Evaporators and Cooling Units
    • Flooded
  • Condensers and High-Pressure Receivers, Intercoolers, Accumulators
  • Purging
  • PREPARATION FOR CARO TEST

NOTE: This training is designed to teach the technical aspects of refrigeration for beginners. For more in-depth knowledge and training on refrigeration systems see our RETA II training courses.


Classroom Type

This is an in-person 4 day (32- hour) comprehensive training course to ensure you know and understand the content of this training.

Classroom minimum requirement is 10 students and maximum is 20 students. NH3 Training Center of Texas, LLC may cancel this session if the participation goal isn’t met.

The key to the success of this training program is to ensure you will have the necessary knowledge and skill set to perform your job with integrity and quality. Therefore, you will be given Tests throughout the training, to ensure you have learned the materials.

NH3 Training Center of Texas, LLC shall ascertain that each Student has received and understood the training. NH3 Training Center of Texas, LLC will prepare a record which contains the identity of the student, the date of training, and the means used to verify that the student understood the training.


Trainer Experience

NH3 Training Center provides qualified and experienced trainers in Industrial Refrigeration Processes. Our trainers are experienced in Industrial Boiler I and II, Industrial Refrigeration Operator I, II, and PSM/RMP. Our Refrigeration Trainers bring over 30 years of combined years of refrigeration experience, that includes maintenance, starting up new refrigeration systems, revamping an existing system, and day-to-day operations.


Questions on this class?

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Class Dates

Sep. 15 - Sep. 18, 2025 | Conroe, TX

Operator I (NH3AO) – CARO Review Course

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Nov. 17 - Nov. 20, 2025 | Conroe, TX

Operator I (NH3AO) – CARO Review Course

Register Now >

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