HVAC Parts Flashcards
Learn HVAC Parts
What is this part called? (Be specific)
Direct spark ignitor
What is this part called? (Be specific)
Silicon carbide ignitor
What is this part called? (Be specific)
Inshot burner
What is this part called? (Be specific)
Silicon nitride ignitor
What type of burner is this?
Upshot burner
What is this part called? (Be specific)
Flame rectification sensor
What is this part called? (Be specific)
Two stage Gas valve
as per Candace
What is this part called? (Be specific)
Flame rollout switch
What is this part called? (Be specific)
High limit switch
What is this part called? (Be specific)
Condensing Heat exchanger
What is this part called? (Be specific)
Inducer motor
What is this part called? (Be specific)
Pressure switch
What is this part called? (Be specific)
Burner assembly
What is this part called? (Be specific)
Squirrel cage
What is this part called? (Be specific)
Transformer
What temperature do flue gases condense at?
135°f and less
What is this part called? (Be specific)
Thermocouple
What is this part called? (Be specific)
Thermopile / Powerpile
What determines the acidity of condensate?
Amount of carbon
If the blower wheel is dirty the amperage will go?
Up
If the evaporator coil is plugged the blower motor amperage will go?
Down
What are 8 ways to tell a burner is failed/failing? (Be specific)
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
What enters where the arrow is pointing?
Primary air
What enters where the arrow is pointing?
Secondary air
What enters where the arrow is pointing?
Fuel
Which part of the burner is the yellow arrow pointing towards?
The venturi
What is the purpose of the flame rectification sensor?
To prove cross burner ignition
How does a flame sensor prove cross burner ignition?
Flame ionization
What unit of measurement is used when testing a thermocouple / thermopile?
mV (millivolts)
How many mV (millivolts) are in a volt?
1,000
A thermocouple is a safety control.
True/False
True
A thermopile / powerpile is a safety control.
True/False
False
Thermocouple / Thermopiles are _______ __________ .
Power Generators
Why are the ignitor and flame sensor almost always placed on oposite ends of the burner assembly?
Prove cross burner ignition
If a gas valve has come in contact with water and has begun rusting what are you required to do?
A tag the equipment.
A gas valve is a safety device and must not come in contact with water.
What type of equipment only has a primary heat exchanger?
Non-condensing equipment
If you have water in the blower assembly you most likely have?
Leaking secondary heat exchanger
