HVAC systems can be divided into heating systems, air conditioning systems, ventilation systems, ventilation systems, fresh air systems, smoke control systems, etc.
The heating system is mainly responsible for providing heat to maintain indoor temperature. The air conditioning system controls and regulates temperature, humidity, air flow rate, and quality. The ventilation system and ventilation system are responsible for the circulation and exchange of indoor air. The smoke prevention and exhaust system can eliminate indoor smoke when necessary. The fresh air system introduces fresh outdoor air.