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Domestic Refrigeration Units Installation

Refrigeration And Air Conditioning · Level 5  ·  7 Chapters

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What Domestic Refrigeration Units Installation covers

In this unit, you will be able to confidently install domestic refrigeration units by accurately assessing site conditions, preparing detailed reports, and following all safety and manufacturer guidelines. You will master the skills to handle, position, and set up refrigeration systems—including hydrocarbon units—safely and precisely, ensuring they operate efficiently and meet industry standards. By the end, you’ll be ready to deliver fully functional refrigeration units to users with professionalism and care, making a real difference in everyday comfort and food preservation.

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Careers after Domestic Refrigeration Units Installation

Mastering domestic refrigeration unit installation opens doors to a wide range of practical and rewarding career opportunities across Kenya’s vibrant economy. Refrigeration is essential in homes, businesses, and industries, making your skills highly sought after in many sectors.

  • In the Jua Kali sector, skilled technicians install and maintain refrigeration units for small shops, roadside kiosks, and local eateries, helping businesses keep perishables fresh and customers satisfied.
  • County governments often require refrigeration installation and maintenance for public health facilities and food storage centers, offering stable employment opportunities.
  • Companies like KenGen and other energy firms need refrigeration units in their offices and worker camps, creating demand for qualified installers.
  • The matatu industry uses refrigeration for onboard coolers and refreshment services, providing niche opportunities for mobile refrigeration installers.
  • Agribusiness enterprises such as KTDA and local dairy cooperatives rely heavily on refrigeration to preserve tea leaves, milk, and other produce, ensuring product quality from farm to market.
  • Construction sites require refrigeration units for worker camps and material storage, where your expertise ensures smooth operations.
  • The hospitality sector—hotels, lodges, and restaurants—depends on efficient refrigeration systems, offering steady jobs and chances to grow your career or start your own maintenance business.

By mastering these skills, you can work as a professional technician employed by established companies or become an entrepreneur running your own refrigeration installation and repair service. This not only brings financial independence but also contributes to Kenya’s growing economy by supporting food security, public health, and business success.

Your expertise in refrigeration installation is a valuable asset that can transform communities and improve lives—keep learning and stay committed, and you’ll build a future full of opportunity and impact.

Chapters

1
Identify and repair faults in refrigeration units
43 topics
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2
Carry out refrigerant recovery
10 topics
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3
Service refrigeration units
26 topics
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4
Pressure testing refrigeration units
0 topics
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5
Evacuate refrigeration units
0 topics
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6
Charge refrigeration units
0 topics
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7
Test-run the maintained Refrigeration units
0 topics
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What Domestic Refrigeration Units Installation covers: 46 main topics in 3 chapters

1. Identify and repair faults in refrigeration units

  1. 1.1 Introduction to refrigerants and lubricants
  2. 1.2 Fundamentals of refrigeration iagrams, charts and manuals
  3. 1.3 Identification of faults
  4. 1.4 Leaks
  5. 1.5 High current
  6. 1.6 Under performance
  7. 1.7 Unusual noise
  8. 1.8 Vibrations
  9. 1.9 Electrical parts, components, functions and operations
  10. 1.10 Procedures for testing electrical components
  11. 1.11 Troubleshooting electrical faults
  12. 1.12 Procedures for repairing/replacing electrical components
  13. 1.13 Mechanical parts, components, functions and operation
  14. 1.14 Troubleshooting mechanical faults
  15. 1.15 Repair of refrigeration units

2. Carry out refrigerant recovery

  1. 2.1 Type of refrigerant
  2. 2.2 Terms and concepts of refrigerant recovery
  3. 2.3 Tools, equipment and materials
  4. 2.4 Decommissioning procedures for hydrocarbon RAC systems
  5. 2.5 Safe procedures for handling potentially hazardous system materials, including hydrocarbon refrigerants
  6. 2.6 Calculate the safe fill weight for the recovery cylinder (density difference between HFCs and HCs)
  7. 2.7 Preparation for recovery
  8. 2.8 Pressure testing of the cylinder
  9. 2.9 Connecting manifold gauge set
  10. 2.10 Performing refrigerant recovery

3. Service refrigeration units

  1. 3.1 Identification and interpretation of refrigeration symbols
  2. 3.2 Interpretation of drawings
  3. 3.3 Fundamentals of refrigeration cycle
  4. 3.4 Refrigeration unit components
  5. 3.5 Operating parameters of refrigeration systems e.g. temperature, pressure, current
  6. 3.6 Types of refrigerants
  7. 3.7 Types of lubricants
  8. 3.8 Safe handling of refrigerants (including hydrocarbons)
  9. 3.9 Safety in handling nitrogen gas
  10. 3.10 Servicing/replacing components
  11. 3.11 Service and maintenance procedures for hydrocarbon RAC Units
  12. 3.12 Specify appropriate 'like for like' replacement components on hydrocarbon systems for the following:
  13. 3.13 Maintaining the integrity of sealed electrical enclosures
  14. 3.14 Methods for accessing and sealing hydrocarbon systems
  15. 3.15 Service, maintenance and fault diagnosis procedures on hydrocarbon systems including:
  16. 3.16 industry standards/codes of practice
  17. 3.17 information from system users
  18. 3.18 State the requirements for the safe use of vacuum pumps when evacuating hydrocarbon systems
  19. 3.19 Explain the procedure for safely removing and replacing hydrocarbon RAC system components
  20. 3.20 Types of Ozone depleting substances (ODS)
  21. 3.21 Effects of refrigerants on climate change

Practise this unit

The practical 77 The assessment itself: tools, materials and the marks Step-by-step guide 77 PPE, each step, what good looks like, common mistakes

Revise this unit

Exam-style questions 98 Written to CDACC standard, with answers Test yourself 234 Multiple-choice, one at a time Practise questions 182 Quick recall — check you know the facts
3 more for this unit
Oral exam preparation 55 What the assessor asks, and how to answer out loud Worked calculations 42 Step-by-step maths with the common mistakes Quick cards 1,159 Myth busters, skill tips and scenarios

Beyond the syllabus

Decision simulator 6 On site, what would you do? Workplace scenarios 100 Real site situations — what would you do? Turn this into income 60 Where this skill earns — what to charge, how to find clients

Other units in Module I