Basic Hot Water Heating Systems Flashcards Preview

Second Period Electrician > Basic Hot Water Heating Systems > Flashcards

Flashcards in Basic Hot Water Heating Systems Deck (7)
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1
Q

What is a device that transfers heat from one system to another?

A

a heat exchanger

2
Q

What is the maximum capacity of a class 2 transformer?

A

100VA

3
Q

What is the purpose of a reverse acting aquastat?

A

prevent cold water from circulating in a heating system

4
Q

What is the typical voltage for zone valves?

A

24V

5
Q

What is the purpose of a flame rod?

A

to detect a burner flame

6
Q

What is a LWCO used for?

A

shutoff burner if boiler water is too low

7
Q

What are the two types of aquastats?

A

immersion, surface mount