Main Components of an HVAC System
Thermostat and Controls
The thermostat acts as the command center for your HVAC system. It monitors temperature and signals the system to turn on or off to meet your preferred settings. Smart thermostats can also adapt to your schedule and optimize energy use.
Furnace (Heating Unit)
The furnace generates heat using natural gas, electricity, or oil. It contains a heat exchanger that warms the air before sending it through the ductwork. In other words, cold air passes over the furnace heat exchanger, transforming into warm air distributed throughout your home via ductwork and vents.
Air Conditioner (Cooling Unit)
The air conditioner’s job is to remove heat from your indoor air and release it outside. Central air conditioning systems use the principles of heat transfer to move thermal energy from inside your home to the exterior, effectively lowering indoor temperatures. It does this using refrigerant and a series of coils. In many setups, the air conditioner shares ductwork with the furnace.
Heat Pump and Air Handler
Heat pumps are versatile units that provide heating and cooling by reversing the direction of refrigerant flow. Heat pump operation involves moving heat rather than generating it, making these systems incredibly energy-efficient for both heating and cooling in moderate climates. The air handler moves conditioned air throughout the building, often working in tandem with the heat pump.
Condenser and Evaporator Coil
The evaporator coil absorbs heat from indoor air, while the condenser coil releases it outside. These coils are crucial to the refrigerant cycle that makes air conditioning possible.
Refrigerant Lines
Air Ducts, Vents, and Distribution
Ductwork distributes conditioned air throughout the building, while vents allow air to enter and exit various rooms. Properly designed ducts are essential for efficient airflow and comfort. Explore custom ductwork fabrication and installation.
