Level 3 · Plumbing revision

Cold Water revision notes

Loading-unit sizing, storage and accumulators, the Water Fittings Regulations, Legionella control and commissioning.

Selection & Sizing

How accumulators meet short peaks and when boosted or pressurised systems are needed.

How the BS EN 806-3 simplified method uses loading units to turn combined demand into a pipe size.

Working stored cold water volume from demand and a reserve period, without oversizing.

The standards, manufacturer data and drawings a cold water design is built from.

What the Water Fittings Regulations require and which cold water work must be notified in advance.

Designing cold water to stay below the 20°C to 45°C Legionella growth band.

Choosing pipe and fitting materials that suit the duty and keep water wholesome.

The commissioning sequence and how the soundness (pressure) test proves the pipework.

A systematic way to diagnose common cold water faults and hand the system over.

An overview of flushing and disinfecting a cold water system to PD 855468 principles.

Keeping cold water cool, moving and clean to control Legionella.

Routine checks and the maintenance log that show monitoring is actually happening.

Every module has its own revision notes and question bank.