The Rickard electronic wall/bulkhead VAV diffusers are normally used in sidewalls or bulkheads where restricted ceiling voids exist or covered ceilings are not available. They are very effective at distributing air across long offices but, when only a short distance is required, the angle of the double deflection blades within the housing are simply changed to reduce the throw.

A comfortable room temperature is maintained by varying the supply air volume in accordance with demand. This is achieved by opening or closing the diffuser’s aperture which is a set of air foil shaped aluminium vanes, driven by a 24V AC electric actuator.

Like the linear slot electronic diffusers, the movement of the vanes is determined by the temperature in the space and the set point on the wall thermostat. Depending on the demands required, these diffusers maintain air volumes ranging from 100% to 10% which effectively mixes the air and maintains a more healthy and productive environment.

The electronic wall/bulkhead diffusers are available in 2 heights, 100mm and 150mm. The 100mm size is available in lengths from 300 to 650mm and the 150mm size comes in lengths from 500 to 700mm.

The wall/bulkhead diffuser has no in-built temperature sensor so it must be connected to a wall thermostat for it to be changed to a master diffuser. The diffuser can then operate with one or more slave diffusers or as a standalone system to provide the required amount of conditioned air to the area.