Hot Water Storage phase 2 1.2

What type of hot water storage cylinder is used in direct open vented hot water storage systems?

• Indirect-type

• Direct-type

• Closed-type

• Hybrid-type

Which component is not part of the direct open vented hot water storage system?

• Heat exchanger

• Immersion heater

• Vent pipe

• Gate valve

Why is a low pressure system considered advantageous in open vented hot water storage systems?

• It is noisy in operation

• It is quiet in operation

• It increases water pressure

• It requires more maintenance

What type of system utilizes a double feed indirect hot water storage cylinder?

• Single feed direct system

• Double feed indirect system

• Triple feed direct system

• Single feed indirect system

What is the size of the cold feed to the secondary hot water system?

• 15mm

• 22mm or 28mm

• 32mm

• 40mm

What is the purpose of the 22mm or 28mm full way gate valve?

• To control the flow of water

• To heat the water

• To cool the water

• To filter the water

What is the purpose of the AAV in the sealed indirect system?

• To allow air to escape

• To heat water

• To cool water

• To filter water

What is one advantage of a low pressure system in indirect open vented hot water storage systems?

• Greater risk of frost damage

• Quiet in operation

• Requires more structural support

• Expensive to install

What is a disadvantage of the pipework in indirect open vented hot water storage systems?

• Good hot water temperature control

• Requires more structural support

• A large amount of water storage is needed

• Less risk of water hammer

What is an advantage of indirect open vented hot water storage systems regarding temperature control?

• Good hot water temperature control

• Greater risk of frost damage

• Requires more structural support

• Uses a lot of storage space