HVAC equipment mainly includes air conditioning system, heating system, ventilation system and water supply and drainage system; Fire fighting engineering mainly includes fire fighting equipment and fire fighting system.

air conditioning systems include central air conditioning, split air conditioning and multi-connected air conditioning, which are used to adjust indoor temperature and humidity; The heating system includes floor heating system, wall-hung boiler and radiator, etc., which is used to provide indoor heating; Ventilation system includes fresh air system, exhaust system and ventilation pipeline, etc., which is used to keep indoor air fresh; Water supply and drainage system, including water supply system, drainage system and sewage treatment system, is used for water supply and drainage.

Fire fighting equipment includes fire hydrants, fire extinguishers, fire pumps, fire sprinkler systems and fire alarm systems, which are used for initial fire fighting and alarm. Fire fighting system includes automatic sprinkler system, automatic sprinkler system, gas fire extinguishing system and smoke control and exhaust system, etc., which are used to automatically detect fires, alarm and put out fires.