Heating, Ventilation, & Air Conditioning (HVAC) Inspection Flashcards

What is the purpose of the condensate drain in an HVAC system?

Answer: Remove condensed water

The condensate drain removes moisture collected from the evaporator coil to prevent water damage and system malfunction.

Which component of an HVAC system is responsible for cooling the air?

Answer: Evaporator coil

The evaporator coil absorbs heat from the air inside the building, allowing the air to cool as it passes over the coil.

What is the recommended location for a home thermostat?

Answer: On an interior wall away from vents

Thermostats should be placed on interior walls away from direct sunlight and vents to get accurate readings.

Which refrigerant is commonly used in modern residential HVAC systems?

Answer: R-410A

R-410A is widely used in residential systems due to its efficiency and lower environmental impact compared to older refrigerants like R-22.

What is the function of the air filter in an HVAC system?

Answer: Filter out airborne particles

Air filters trap dust, pollen, and other airborne particles to improve air quality and protect the system from damage.

Why is it important to inspect ductwork in an HVAC system?

Answer: To detect leaks and inefficiencies

Leaks or damage in ductwork can lead to energy loss, poor air quality, and uneven heating or cooling.

How often should HVAC filters typically be changed?

Answer: Every 1 to 3 months

Changing filters every 1 to 3 months helps maintain airflow and air quality and extends system life.

What does SEER stand for in HVAC terminology?

Answer: Seasonal Energy Efficiency Ratio

SEER (Seasonal Energy Efficiency Ratio) measures the efficiency of an air conditioning system over a season.

Which component of the HVAC system compresses refrigerant gas?

Answer: Compressor

The compressor is a vital part of the HVAC cycle that pressurizes refrigerant and helps move it through the system.