Hvac Flashcards
What does HVAC stand for?
Heating, Ventilation, and Air Conditioning
What is the purpose of an HVAC system?
To provide a comfortable indoor environment by controlling temperature, humidity, and air quality
True or False: HVAC systems are only used for heating homes.
False
What is the function of the evaporator coil in an HVAC system?
To absorb heat from the indoor air
What is the role of a thermostat in an HVAC system?
To regulate the temperature by turning the system on or off
What type of refrigerant is commonly used in HVAC systems?
R-410A
What is the purpose of the condenser coil in an HVAC system?
To release heat to the outside air
What is the minimum efficiency rating for new HVAC systems in the United States?
SEER 13
What does SEER stand for in relation to HVAC systems?
Seasonal Energy Efficiency Ratio
What is the purpose of the blower motor in an HVAC system?
To circulate air throughout the ductwork
What is the standard refrigerant line size for residential HVAC systems?
3/8 inch
What does AFUE stand for in relation to heating systems?
Annual Fuel Utilization Efficiency
What is the purpose of the air filter in an HVAC system?
To trap dust, dirt, and other particles to improve indoor air quality
True or False: HVAC systems require regular maintenance to operate efficiently.
True
What is the purpose of the compressor in an HVAC system?
To compress refrigerant and increase its temperature
What is the recommended humidity level for indoor environments?
Between 30-50%
What does MERV stand for in relation to air filters?
Minimum Efficiency Reporting Value
What is the purpose of the expansion valve in an HVAC system?
To regulate the flow of refrigerant into the evaporator coil
What is the typical lifespan of an HVAC system?
10-15 years
What is the purpose of ductwork in an HVAC system?
To distribute conditioned air throughout the building
What does EER stand for in relation to HVAC systems?
Energy Efficiency Ratio
What is the purpose of the heat exchanger in a furnace?
To transfer heat to the air before it is circulated throughout the building
What is the purpose of the fan in an HVAC system?
To move air across the evaporator and condenser coils for heat exchange
What is the role of refrigerant in an HVAC system?
To absorb and release heat to facilitate the cooling or heating process
