Commercial Refrigeration Systems Installation

Refrigeration And Air Conditioning · Level 5  ·  8 Chapters

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What Commercial Refrigeration Systems Installation covers

In this unit, you will be able to confidently read and interpret commercial refrigeration system designs, assess site conditions, and prepare detailed installation plans. You will gain hands-on skills to safely install and test refrigeration units, including hydrocarbon systems, while following industry standards and safety regulations. By the end, you’ll be ready to deliver professional, precise installations that meet manufacturer specifications and workplace procedures with confidence and care.

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Careers after Commercial Refrigeration Systems Installation

Understanding commercial refrigeration systems installation opens doors to a variety of dynamic and essential roles across Kenya’s growing economy. From bustling urban centers to rural hubs, this skill is crucial in keeping perishable goods fresh, supporting businesses, and improving livelihoods.

  • In the hospitality sector, hotels and restaurants in Nairobi, Mombasa, and Kisumu rely on skilled technicians to install and maintain refrigeration units that preserve food quality and safety.
  • The agribusiness industry, including companies like KTDA and local dairy cooperatives, depends on refrigeration systems to store tea leaves, milk, and fresh produce, ensuring products reach markets in prime condition.
  • The vibrant jua kali sector offers opportunities for self-employed technicians to provide installation and maintenance services to small shops, kiosks, and roadside eateries.
  • Large employers such as KenGen and county governments need refrigeration experts to install and service cooling systems in offices, medical facilities, and staff quarters.
  • The matatu industry also uses refrigeration units in some vehicles for transporting chilled goods, creating niche roles for technicians skilled in mobile refrigeration systems.
  • Mastering these skills allows you to work as a professional technician earning a stable salary or start your own business offering installation, repair, and maintenance services, meeting the growing demand across urban and rural Kenya.

By mastering commercial refrigeration systems installation, you position yourself at the heart of Kenya’s economic growth, ensuring food security, enhancing business efficiency, and building a rewarding career with endless opportunities. Your expertise will keep Kenya’s industries cool and thriving!

Chapters

What Commercial Refrigeration Systems Installation covers: 60 main topics in 8 chapters

1. Interpret Design diagram

  1. 1.1 Introduction to refrigeration principles
  2. 1.2 Principle of operation of refrigeration systems
  3. 1.3 Refrigeration equipment
  4. 1.4 Refrigeration process
  5. 1.5 Symbols and abbreviations
  6. 1.6 Measurement units in refrigeration system design
  7. 1.7 Components of a refrigeration system

2. Conduct site survey

  1. 2.1 Types of PPE
  2. 2.2 Safe and correct handling, use, maintenance and storage of different types of PPE
  3. 2.3 Hazards associated with refrigeration system (including hydrocarbons)
  4. 2.4 Classes of fires and fire extinguishers
  5. 2.5 Risk assessment

3. Install electrical wiring for commercial refrigeration units

  1. 3.1 Identification of symbols
  2. 3.2 Interpretation of wiring diagrams
  3. 3.3 Wires and cables used in electrical wiring
  4. 3.4 Ensure no switches within 3m of the unit
  5. 3.5 Types of socket outlets, switches and switch boxes used in electrical wiring
  6. 3.6 Enclosures and their conditions for use
  7. 3.7 Identifying wall plugs and masonry bolts
  8. 3.8 Drilling into masonry and wood work using portable drills
  9. 3.9 Marking out and levelling using spirit level
  10. 3.10 Use of measuring instruments
  11. 3.11 Testing electrical circuits

4. Install commercial refrigeration system

  1. 4.1 Types of refrigeration system
  2. 4.2 Health, safety and environmental requirements
  3. 4.3 Tools, equipment and materials
  4. 4.4 Refrigeration system installation
  5. 4.5 System lubrication and charging
  6. 4.6 Types of insulation materials
  7. 4.7 Pipes/ tubes insulation
  8. 4.8 Housekeeping practices
  9. 4.9 Preparing system installation report

5. Carry out pressure strength and leak test

  1. 5.1 Concepts of pressure strength
  2. 5.2 Tools, equipment and materials
  3. 5.3 Calculate strength test pressure
  4. 5.4 Preparation for pressure strength
  5. 5.5 Pressure strength testing of brazed joints
  6. 5.6 Pressure strength testing of the system
  7. 5.7 Leak Detection methods
  8. 5.8 Standing Pressure Test

6. Evacuate commercial refrigeration units

  1. 6.1 Identifying refrigeration system for evacuation
  2. 6.2 Health, safety and environmental requirements
  3. 6.3 Tools, equipment and instruments
  4. 6.4 Evacuation Procedure
  5. 6.5 Housekeeping practices

7. Charge commercial refrigeration units

  1. 7.1 Identifying refrigeration system to be charged
  2. 7.2 Identifying relevant refrigerant
  3. 7.3 Health and safety requirements and standards
  4. 7.4 KS ISO 5149-4:2014
  5. 7.5 ISO 22712

8. Test-run the installed commercial Refrigeration units

  1. 8.1 Temperature testing
  2. 8.2 Current and voltage measurement
  3. 8.3 Sound and vibration checking
  4. 8.4 Operation of Air Conditioning unit within acceptable parameters
  5. 8.5 Training the user on use of the unit
  6. 8.6 Handing over procedures
  7. 8.7 Checking electrical connections
  8. 8.8 Checking if the system is running
  9. 8.9 Preparing an as-built drawing
  10. 8.10 Preparing commissioning report The delivery may also be supplimented and enhanced by the following, if the opportunity allows; S/No. s Quantit y Recommende d Ratio (Item: Trainee) A Learning Materials

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Other units in Module III