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Module Lessons
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
This lesson details the safe isolation, removal, and replacement procedures for domestic hot water components, including cylinders, immersion heaters, taps, float valves, and circulating pumps.
Identify the preparatory checks and safe isolation procedures required before replacing hot water components.
Describe the practical step-by-step methods for removing and fitting cylinders, immersion heaters, taps, and circulating pumps.
Explain how to select correct replacement parts, orifices, and adaptors when updating older domestic installations.
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