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Upgrade nowFilling, Venting, and System Balancing
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
This lesson covers the principles and practical procedures for filling and venting open vented and sealed central heating systems. You will also learn how to balance radiators using lockshield valves to achieve uniform heat distribution and energy efficiency.
Learning Objectives
Explain the step-by-step procedures for filling and venting open vented and sealed central heating systems.
Identify methods for releasing trapped air and preventing pump aeration in domestic systems.
Describe the principles and practical steps required to balance a system using lockshield valves.
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