CH pp2 - Plumbing Systems Objectives

Which of the following systems includes sealed, multi-zone, and W plan systems and their components?

• HVAC systems

• Electrical systems

• Plumbing systems

• Security systems

What are the two categories of modern domestic central heating systems based on?

• The type of fuel used

• The way the system is filled with water and the pressure it operates at

• The size of the system

• The brand of the system

Which component in the diagram is responsible for controlling the heat in a room?

Fill in the blank: A bypass circuit must be installed if the boiler manufacturer requires one or specifies that a _______ flow rate must be maintained while the boiler is firing.

• minimum

• maximum

• average

• constant

What is the primary function of an expansion vessel in a sealed system?

• To heat water

• To replace the feed and expansion cistern

• To cool water

• To filter water

Boilers connected to these new systems are of what efficiency?

• High efficiency

• Low efficiency

• Moderate efficiency

• Variable efficiency

What is the function of the zone valve in the S plan system?

• To control the flow of water to different zones

• To regulate the temperature of the water

• To increase the pressure in the system

• To filter impurities from the water

Identify the component labelled as '2 port zone valve for 'upstairs circuit' in the S plan plus system diagram.

Which system is Building Regulation compliant?

• A) Y Plan

• B) S Plan

• C) Both

• D) Neither

Which system can be used with system boilers?

• A) Y Plan

• B) S Plan

• C) Both

• D) Neither