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Cover of Refrigeration Mechanic - Knowledge Module, Volume 2

Refrigeration Mechanic - Knowledge Module, Volume 2

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About this book

Volume 2 of the theory textbook for the QCTO Occupational Certificate: Refrigeration Mechanic (NQF Level 4, SAQA ID 103270) — plant, pipework and system design. Chapters 7 to 13 carry 41 of the knowledge component's 162 credits: engineering drawings; water reticulation and secondary cooling systems; moving and assembling equipment, key-ways, bearings, drives and couplings; psychrometrics, air flow and charging the system; gas welding, brazing, cutting and arc welding; refrigeration systems, components, controls and safety devices; and Mollier diagrams and refrigeration heat load calculations. Written to South African law and standards, with worked examples, Check Your Understanding boxes and end-of-chapter review questions in every chapter. Chapters are numbered continuously 1 to 20 across the three volumes.

What is inside

  1. Chapter 7 — Engineering Drawings
  2. PART A — READING ENGINEERING AND ELECTRICAL DRAWINGS
  3. PART B — SYMBOLS, ABBREVIATIONS AND TOLERANCES
  4. PART C — ISOMETRIC DRAWINGS
  5. Chapter 8 — Water Reticulation and Secondary Cooling Systems
  6. PART A — WATER RETICULATION SYSTEMS
  7. PART B — INSTALLING A WATER RETICULATION SYSTEM
  8. PART C — WATER TREATMENT
  9. PART D — SECONDARY COOLING SYSTEMS
  10. CLOSING SECTIONS
  11. Chapter 9 — Moving and Assembling Equipment; Key-ways, Bearings, Drives and Couplings
  12. PART A — MOVING, ASSEMBLY, DE-COMMISSIONING AND DISMANTLING (KM-17)
  13. PART B — KEY-WAYS, BEARINGS, DRIVES AND COUPLINGS (KM-16)
  14. Chapter 10 — Psychrometrics, Air Flow and Charging the System
  15. PART A — BASIC PSYCHROMETRICS AND ELEMENTARY AIR FLOW (KM-20)
  16. PART B — CHARGING THE REFRIGERATION SYSTEM (KM-18)
  17. Chapter 11 — Gas Welding, Brazing, Cutting and Arc Welding
  18. PART A — GAS WELDING, BRAZING AND CUTTING (KM-21)
  19. PART B — ARC WELDING: MMA, MIG/MAG AND TIG (KM-31)
  20. Chapter 12 — Refrigeration Systems, Components, Controls and Safety Devices
  21. PART A — REFRIGERATION SYSTEMS AND COMPONENTS (KM-23)
  22. PART B — CONTROLS AND SAFETY DEVICES (KM-22)
  23. Chapter 13 — Mollier Diagrams and Refrigeration Heat Load Calculations
  24. PART A — MOLLIER DIAGRAMS (642702000-KM-24)
  25. PART B — HEAT LOAD CALCULATIONS (642702000-KM-25)

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