Hot water power point 2

What does the baffle in a hot water cylinder help to maintain?

• Water pressure

• Temperature stratification

• Water purity

• Cylinder durability

What does the secondary return in a hot water cylinder refer to?

• The return of hot water to the cylinder

• The return of cold water to the cylinder

• The return of water through the baffle

• The return of water in the primary flow

What happens first in the system described?

• Water is heated and pushes air bubble into lower dome.

• Air lock is formed, cylinder and primaries are full.

• Cold water enters cylinder and heat exchanger.

• Cylinder is emptied.

Which connection is used for the primary flow in the system?

• Cold feed connection

• Hot water draw-off connection

• Primary flow connection

• Immersion heater connection

Which part of the system is responsible for returning the primary flow?

• Cold feed connection

• Primary return connection

• Hot water draw-off connection

• Immersion heater connection

Which connection uses a 1" male thread?

• Cold feed connection

• Primary return connection

• Hot water draw-off connection

• All of the above

Which system can have various size cylinders available?

• Direct cylinder

• Indirect cylinder

• Combination unit

• None of the above

In what type of area are stored water systems particularly suitable?

• Areas with high water pressure.

• Areas with low water pressure.

• Urban areas.

• Coastal areas.

What is a benefit of a combination boiler compared to a stored hot water system?

• It provides a secondary heat source.

• It offers instant hot water.

• It is more expensive to install.

• It takes up more space.

What is the function of component 1 in the diagram?

• Flow meter

• Automatic air vent

• Pump

• Non-return valve