The distribution of air is a critical component of an HVAC system. Without the proper air distribution, chillers, rooftop units and other components of the complete system will not function at the most efficient levels.

There are various components of a complete air movement solution that include air handlers, VAV boxes, vane axial fans and proper air balance. Depending on the environment and the system in use some or all of these components will be required.

An air handler in its simplest form is a sheet metal box with two openings on opposite ends and a fan located inside. Add a hot water coil, and it becomes a fan-coil for hydro-air application. Add an evaporator coil and it becomes and indoor unit for central air or a heat pump. Put electric heating elements, circuit breakers and controls and it becomes and electric furnace.

VAV systems (Variable Air Volume) provide variable air depending on the temperature of the space. As the temperature rises the VAV damper opens to send a designed amount of airflow to the space.

To create a comfortable environmental systems must provide a proper balance of temperature, humidity, air movement and cleanliness. Making certain these systems perform as designed requires proper testing and balancing.

The duct system used for air movement is a collection of ducts that distributes the heated or cooled air to various spaces. A professional duct system can make a substantial difference in the cost and effectiveness of heating and cooling your environment. A poorly designed duct system can have an adverse effect on the health of the occupants through the distribution of indoor air pollutants, thus, it is also very important to have proper air filtration.

Vane Axial fans are designed for commercial and industrial applications where large volumes of air are required at moderate to high pressures. The tubular design, high efficiency rotor and integral straightening vanes provide high performance using minimal space. These fans are an excellent choice for HVAC systems using variable air volumes, clean rooms, parking garage exhaust, and tunnel ventilation.