Front
Compressor
Back
Increases pressure and temperature of vapor refrigerant
The 'heart' of the refrigeration cycle.
Public Deck
HVAC Technician Certification - 40 Key Concepts
Study for HVAC certification with 40 flashcards covering refrigeration, electrical, heating, and EPA 608 topics.
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Front
Condenser
Back
Rejects heat from the refrigerant to the outside air
Refrigerant changes from high-pressure vapor to liquid.
Front
Expansion Device (TXV/Piston)
Back
Drops refrigerant pressure and temperature
Regulates the flow of refrigerant into the evaporator.
Front
Evaporator
Back
Absorbs heat from the indoor air
Refrigerant changes from low-pressure liquid to vapor.
Front
Superheat
Back
Temperature of vapor above its boiling point
Ensures no liquid refrigerant enters the compressor.
Front
Subcooling
Back
Temperature of liquid below its condensing point
Indicates the amount of refrigerant charge in the condenser.
Front
Latent Heat
Back
Heat that causes a change of state without changing temperature
Occurs during evaporation and condensation.
Front
Sensible Heat
Back
Heat that causes a change in temperature that can be measured
Measured with a standard dry-bulb thermometer.
Front
Refrigerant state leaving the evaporator
Back
Low-pressure, low-temperature superheated vapor
Ready to be compressed.
Front
Refrigerant state leaving the compressor
Back
High-pressure, high-temperature superheated vapor
Ready to be condensed.
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