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Read through the material below, then test your understanding.
Module Lessons
Hot Water
Hot Water Legislation and Standards
System Selection Factors
Open Vented Hot Water Systems
Hot Water Storage Cylinders
Combination and Quick Recovery Cylinders
Unvented Hot Water Systems
Localised Hot Water Systems
Hot Water Safety Controls
Discharge Pipework (D1/D2)
Decommissioning Hot Water Systems
Thermostatic Mixing Valves (TMVs)
Installing Shower Mixing Valves
Replacing Hot Water Components
Expansion of Hot Water Pipework
Testing and Inspecting Hot Water Systems
Hot Water System Fault Finding
Maintenance and Component Replacement
Lesson Overview
Localised hot water systems supply hot water directly to single or small groups of outlets at the point of use. They eliminate long, inefficient pipe runs and cold dead legs in domestic and light commercial properties.
Learning Objectives
Distinguish between instantaneous and storage-type localised hot water systems and their operating principles.
Identify the design, expansion accommodation, and installation requirements of over-sink, under-sink, and electric shower appliances.
State the key regulatory requirements and safety controls governing point-of-use water heaters up to 15 litres capacity.
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