Ventilation Air Conditioning

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Retrofitting Your Air Conditioning Ventilation System

If you own or manage a large commercial space you may have an opportunity to save dramatically on energy costs by retrofitting a more efficient HVAC ventilation system. Air conditioning ventilation systems are an often over looked contributor to energy costs. Leaky ducts and constantly running air distribution fans can have a significant impact on your operational expenses. A qualified HVAC company can perform sophisticated ventilation calculations to determine where the inefficiencies in your building’s air conditioning ventilation system are. They can then recommend an appropriate energy saving retrofit of equipment like a variable-air-volume system. These updates can provide air conditioning ventilation for your building using 10-20% less energy.

What makes a good HVAC Ventilation System?

A good HVAC ventilation system should:

• Be accurately sized based on room-by-room cooling load and ventilation calculations
• Be adequately sealed to make certain airflows properly through supply ductwork
...
... • Maintain neutral pressure between supply and return systems
• Minimize air temperature variance in ducts between the air handler and registers
• Have sufficient refrigerant
• Be installed with an appropriately sized return system to provide correct return airflow
• Have well sealed return ductwork that prevents polluted air from entering the HVAC ventilation system

Variable-Air-Volume Ventilation Air Conditioning

Variable-air-volume ventilation air conditioning systems expend less energy than conventional HVAC ventilation systems by cooling air to a fixed temperature and then carefully regulating the amount of airflow to every room in the building. By retrofitting an energy efficient variable-air-volume ventilation air conditioning system in your space you can reduce your energy costs.

Tips on Retrofitting Your Ventilation Air Conditioning System

• Consider installing a displacement ventilation HVAC system that uses a floor plenum for air supply
• Install computer controlled fans that adjust to variances in your building’s condition
Avoiding sharp turns in the duct routing
• Enlarge the size of duct width to improve air speed and efficiency
• Install low-face-velocity air handlers

*Information on ventilation air conditioning, ventilation HVAC and ventilation calculations provided by the U.S. Department of Energy and the State of California.