HVAC Parts

Question 1

What is this part called? (Be specific)

Answer 1

Direct spark ignitor

Question 2

What is this part called? (Be specific)

Answer 2

Silicon carbide ignitor

Question 3

What is this part called? (Be specific)

Answer 3

Inshot burner

Question 4

What is this part called? (Be specific)

Answer 4

Silicon nitride ignitor

Question 5

What type of burner is this?

Answer 5

Upshot burner

Question 6

What is this part called? (Be specific)

Answer 6

Flame rectification sensor

Question 7

What is this part called? (Be specific)

Answer 7

Two stage Gas valve

as per Candace

Question 8

What is this part called? (Be specific)

Answer 8

Flame rollout switch

Question 9

What is this part called? (Be specific)

Answer 9

High limit switch

Question 10

What is this part called? (Be specific)

Answer 10

Condensing Heat exchanger

Question 11

What is this part called? (Be specific)

Answer 11

Inducer motor

Question 12

What is this part called? (Be specific)

Answer 12

Pressure switch

Question 13

What is this part called? (Be specific)

Answer 13

Burner assembly

Question 14

What is this part called? (Be specific)

Answer 14

Squirrel cage

Question 15

What is this part called? (Be specific)

Answer 15

Transformer

Question 16

What temperature do flue gases condense at?

Answer 16

135°f and less

Question 17

What is this part called? (Be specific)

Answer 17

Thermocouple

Question 18

What is this part called? (Be specific)

Answer 18

Thermopile / Powerpile

Question 19

What determines the acidity of condensate?

Answer 19

Amount of carbon

Question 20

If the blower wheel is dirty the amperage will go?

Answer 20

Up

Question 21

If the evaporator coil is plugged the blower motor amperage will go?

Answer 21

Down

Question 22

What are 8 ways to tell a burner is failed/failing? (Be specific)

Answer 22

1.Rust in the carry over tracks
2. Impingement on the interior of the heat exchanger
3. Flame colour
4. Equipment efficiency
5. Dancing flame
6. Flame rollout
7. Delayed ignition
8. Combustion analysis

Question 23

What enters where the arrow is pointing?

Answer 23

Primary air

Question 24

What enters where the arrow is pointing?

Answer 24

Secondary air

Question 25

What enters where the arrow is pointing?

Answer 25

Fuel

Question 26

Which part of the burner is the yellow arrow pointing towards?

Answer 26

The venturi

Question 27

What is the purpose of the flame rectification sensor?

Answer 27

To prove cross burner ignition

Question 28

How does a flame sensor prove cross burner ignition?

Answer 28

Flame ionization

Question 29

What unit of measurement is used when testing a thermocouple / thermopile?

Answer 29

mV (millivolts)

Question 30

How many mV (millivolts) are in a volt?

Answer 30

1,000

Question 31

A thermocouple is a safety control.
True/False

Answer 31

True

Question 32

A thermopile / powerpile is a safety control.
True/False

Answer 32

False

Question 33

Thermocouple / Thermopiles are _______ __________ .

Answer 33

Power Generators

Question 34

Why are the ignitor and flame sensor almost always placed on oposite ends of the burner assembly?

Answer 34

Prove cross burner ignition

Question 35

If a gas valve has come in contact with water and has begun rusting what are you required to do?

Answer 35

A tag the equipment.
A gas valve is a safety device and must not come in contact with water.

Question 36

What type of equipment only has a primary heat exchanger?

Answer 36

Non-condensing equipment

Question 37

If you have water in the blower assembly you most likely have?

Answer 37

Leaking secondary heat exchanger