Commercial Refrigeration Systems Installation

Refrigeration And Air Conditioning · Level 6  ·  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 reports to ensure smooth installations. You’ll master selecting and safely installing electrical components and refrigeration units, including hydrocarbon systems, all while adhering to strict safety and industry standards. By the end, you’ll have the practical skills and knowledge to set up reliable, efficient refrigeration systems that meet professional requirements and keep workplaces running smoothly.

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Careers after Commercial Refrigeration Systems Installation

Where you'll use this in real life

Mastering commercial refrigeration systems installation opens doors to vital roles across Kenya’s diverse economy. From the bustling jua kali workshops in Nairobi to large-scale agribusiness firms like KTDA, your skills will keep perishable goods fresh and businesses running smoothly.

  • In the hospitality sector—hotels, restaurants, and supermarkets in Nairobi, Mombasa, and Kisumu—your expertise ensures refrigeration units operate efficiently, preserving food quality and safety. Skilled technicians here earn steady salaries and can also start their own maintenance services.
  • The matatu industry relies on refrigeration for cold storage of drinks and snacks; your installation skills help operators maintain customer satisfaction and compliance with health standards.
  • County governments employ refrigeration installers and technicians in public health facilities and markets, providing stable employment and opportunities for advancement.
  • In the jua kali sector, you can establish an entrepreneurial venture offering affordable refrigeration installation and repair services to small businesses and farmers.
  • Large energy companies like KenGen require refrigeration systems for equipment cooling; your skills can lead to specialized technical roles with competitive pay.
  • Construction sites need refrigeration units for worker welfare and material storage, creating demand for reliable installers.
  • Agribusiness firms such as KTDA depend on commercial refrigeration to store tea and other perishables, offering employment with benefits and growth potential.

By mastering these installation skills, you position yourself for a rewarding career with multiple pathways—whether employed by established companies or running your own business. Your expertise will be essential in Kenya’s growing economy, helping communities access fresh food and quality services. Step confidently into this future knowing your skills make a real difference.

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 test
  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

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

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 Test-run the installed commercial Refrigeration units

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. Quantity Recommended Ratio (Item: Trainee) A

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Other units in Module III