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Upgrade nowFully Pumped Systems: The Y-Plan
Read through the material below, then test your understanding.
Module Lessons
Central Heating
Introduction to Central Heating & Part L
Heat Emitters: Radiators and Convectors
Radiator Valves: TRVs and Lockshields
System Layouts: One-Pipe and Two-Pipe
System Layouts: Microbore and Manifold
Boiler Types: Regular, System, and Combination
Condensing Boiler Principles
Open Vented Central Heating Systems
Sealed Central Heating Systems
Expansion Vessels and Pressure Relief
Central Heating Pumps and Circulators
System Controls: Programmers and Thermostats
Motorised Valves: 2-Port and 3-Port
Fully Pumped Systems: The Y-Plan
Fully Pumped Systems: The S-Plan
Filling, Venting, and System Balancing
Water Treatment and System Protection
Lesson Overview
A Y-plan system is a fully pumped central heating and hot water layout controlled by a single three-port mid-position valve.
Learning Objectives
Explain the operating principles and flow paths of a three-port mid-position motorised valve
Identify the core electrical and mechanical controls that provide boiler interlock in a Y-plan system
Describe the installation, pipework layout, and safety requirements of a Y-plan system
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