What are the HVAC basic parts?

The main components of an HVAC system, covering Heating, Ventilation, and Air Conditioning, include the Thermostat (control), Furnace/Air Handler (heating/air movement), Condenser Coil, Evaporator Coil, and Compressor (cooling cycle), plus essential Ductwork, Vents, and Air Filters for distribution and purification, all working together to regulate indoor climate.
Core Components:
Thermostat: The “brain” that senses temperature and tells the system when to heat or cool.
Furnace/Air Handler (AHU): Heats air (furnace) or moves air (AHU), often containing the blower fan and filters.
Blower Motor & Fan: Circulates conditioned air through the ducts.
Ductwork: The network of channels that distributes heated or cooled air throughout the building.
Vents & Registers: Openings in walls/floors where air enters and exits rooms.
Air Filter: Traps dust, allergens, and impurities from the air.
Cooling (Air Conditioning) Components:
Compressor: The pump that pressurizes and circulates refrigerant.
Condenser Coil: Releases heat from the refrigerant to the outside air.
Evaporator Coil: Absorbs heat from indoor air, cooling it as refrigerant evaporates.
Expansion Valve: Controls the flow and pressure of refrigerant entering the evaporator.
Heating Components:
Heat Exchanger: In furnaces, separates combustion gases from breathable air.
Combustion Chamber: Where fuel is burned to create heat (in gas furnaces).

Xinxiang Chuangyu Refrigeration Equipment Co., Ltd. is a professional manufacturer focusing on refrigeration accessories. We supply full-spec brazing materials like electrodes, wires and rings, widely applied in HVAC, refrigerators and industrial cooling systems. Adhering to high-quality standards, our products fit low-GWP refrigerants and meet EU ERP, GCC certifications. We provide customized solutions for global clients, covering Europe, the Middle East and Latin America, and strive to be a reliable partner in the global refrigeration industry with premium products and professional services.