• All air HVAC system
• Air-water HVAC system
• All water HVAC system
• Direct expansion HVAC system
• Cooling water system
• Constant temperature and humidity system
• Clean /Disinfection room system
• Negative-pressure isolation system
• Ventilation & air-change system
• Heat pump water / heating system
• Mechanical compression and recycle system
• Absorption refrigeration system
• Water refrigeration system
• Ice refrigeration system
• Energy-saving evaluation for green building
• Evaluation and analysis for air-conditioned load