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Upgrade nowTesting & Commissioning Hot Water Systems
Read through the material below, then test your understanding.
Module Lessons
Hot Water Systems: Planning & Design
Fuels Used in Hot Water Systems
Open Vented Storage Systems
Unvented Storage Systems
Localised Water Heaters
Unvented System Pressures
Secondary Circulation Systems
Hot Water Safety Controls
Functional Controls: Strainers & PRVs
Expansion Devices & Check Valves
Pressure Relief, Tundish & Composite Valves
Discharge Pipework: Sizing & Termination
Design Information Sources
Sizing Cisterns & Storage Vessels
Hot Water Pipework Sizing
Sizing Circulation & Boosting Pumps
Sizing Expansion Vessels & Presenting Designs
Installing Unvented Hot Water Systems
Testing & Commissioning Hot Water Systems
Diagnosing Hot Water System Faults
Component Fault-Finding: Pumps, Vessels & Thermostats
Servicing & Maintaining Hot Water Systems
Lesson Overview
Master the mandatory testing, flushing, and commissioning procedures for domestic hot water systems to ensure regulatory compliance, hydraulic performance, and user safety.
Learning Objectives
Explain the pre-commissioning checks, initial filling, and soundness testing procedures for hot water installations.
Identify the statutory system flushing, water temperature parameters, and flow rate testing requirements.
Describe secondary circulation balancing, regulatory notification timescales, and formal handover procedures.
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