central heating 4

Identify the following item and describe its function in a central heating system.

• Circulator: Filters the water in the system
• Circulator: Regulates the gas flow in the system
• Circulator: Pumps primary water around the system under positive pressure.
• Circulator: Cools down the water in the system

Identify the following item and describe its function in a central heating system.

• Circulator: Filters the water in the system
• Circulator: Regulates the gas flow in the system
• Circulator: Pumps primary water around the system under positive pressure.
• Circulator: Cools down the water in the system

Identify the following items and describe their function in a central heating system.

 

 

• The pump flange in a central heating system regulates the water temperature
• The pump flange in a central heating system controls the air conditioning unit
• The pump flange in a central heating system is used for lighting fixtures
• The pump flange connects the circulator/pump to pipework, isolates the circulator for replacement, ensures watertight seal.

Identify the following item and describe their function in a central heating system.

• Room thermostat: Customer comfort setting of room temperature, Positioned 1.5 metres from floor height, Activates the heating valve.
• programmer: Regulates the humidity levels in the room

• cylinder thermostat: Customer comfort setting of room temperature, Positioned 1.5 metres from floor height, Activates the heating valve.

• programmer: Customer comfort setting of room temperature, Positioned 1.5 metres from floor height, Activates the heating valve.

Identify the following items and describe their function in a central heating system.

• programmer allows for settings for individual control of hot water and central heating timings, as well as activating the thermostats.

• room stat allows for settings for individual control of hot water and central heating timings, as well as activating the thermostats.

• Cylinnder stat allows for settings for individual control of hot water and central heating timings, as well as activating the thermostats.

• The programmer is used to control the lighting in the house.

Identify the following items and describe their function in a central heating system.

 

• The cylinder thermostat controls the temperature of the hot water in the hot water cylinder.
• The bypass thermostat controls the temperature of the cold water in the hot water cylinder.

• The room thermostat regulates the pressure of the hot water in the hot water cylinder.

• The cylinder thermostat is positioned at the bottom of the hot water cylinder.

Identify the following items and describe their function in a central heating system.

• The 2 port valve is responsible for adjusting the air pressure in the system

• It controls the flow of electricity to the radiators
• 2 port valve controls HW/CH circuits.

• 3 port mid-position valve controls HW/CH circuits.

what is this and what is its purpose?

• Automatic bypass valve

• pump

• 3 port valve

• pressure relief valve

 

Identify the following items and describe their function in a central heating system.

• A permanent connection between the incoming mains and the central heating system
• expansion vessel, temporary connection between the incoming mains and the central heating system, used on pressurised sealed systems, including combination boilers.

• Filling loop, temporary connection between the incoming mains and the central heating system, used on pressurised sealed systems, including combination boilers.

• by pass, temporary connection between the incoming mains and the central heating system, used on pressurised sealed systems, including combination boilers.

Identify the following items and describe their function in a central heating system.

• Expansion vessel is used to take up the 4% expansion of the primary water in a sealed system.
• CWSC Cistern is used to take up the 4% expansion of the primary water in a sealed system.

• A prv is used to regulate the water temperature in the system.

• Expansion vessel is designed to increase the pressure of the water in the system.