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Is your air conditioner at home is over 10 years old? If so, then it means that you might need to replace your old air conditioner in the near future. On the other hand, if your air conditioner is still new, you have to ensure it keeps operating well by scheduling annual maintenance. Therefore, you might have to hire an air conditioner contractor.

Heating, ventilation, and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort. The main purpose of HVAC system is to provide thermal comfort and appropriate indoor air quality. HVAC system design is a subdiscipline of mechanical engineering that is based on the principles of thermodynamics, fluid mechanics and heat transfer.