pp4 Central Heating System Components Quiz

What is the purpose of an air separator in a central heating system?

• To separate the air in the system and to allow it to go up the vent pipe

• To allow close proximity pipework for cold feed and vent pipe

• To increase the noise in the system

• To reduce the risk of corrosion in the system

how is the the pump fitted to the central heating pipework

• At the top of the boiler

• At the bottom of the expansion vessel

• with the pump flanges

• Inside the radiator

What is the purpose of a magnetic system cleaner in a central heating system?

• To collect all the corroded iron particles / magnetite

• To regulate the temperature of the water

• To increase the system pressure

• To remove air from the system

What is the function of an inhibitor in a central heating system?

• To reduce the efficiency of the system

• To regulate the flow of water in the system

• To protect against scale and corrosion

• To increase the risk of corrosion

What is the purpose of a lock-shield valve in a central heating system?

• To release excess pressure in the system

• To provide access for system balancing

• To remove air from the system

• To control the temperature of the water

Why is it important to leave one radiator without a thermostatic radiator valve (TRV) according to Building Regulations?

• To allow for easy maintenance of the radiator

• To allow control for the room thermostat

• To increase the efficiency of the system

• To regulate the flow of water in the system

What is the purpose of an automatic bypass valve (ABV) in a central heating system?

• To release excess pressure in the system

• To allow for easy maintenance of the circulator

• To prevent lockout and prolong the pump life by releasing pressure and allowing circulation through the boiler

• To remove air from the system

What is the function of a filling loop in a pressurised sealed system?

• To fill the system with water from the mains

• To release excess pressure in the system

• To remove air from the system

• To connect the primary flow and return pipes

Where should drain-off valves be fitted in a central heating system?

• At the lowest points in the system

• At the highest points in the system

• At the radiator valves

• At the expansion vessel

What is the purpose of a pressure gauge in a central heating system?

• To release excess pressure in the system

• To indicate the pressure of the system water content

• To remove air from the system

• To regulate the flow of water in the system