High Pressure Roof Top Air Handling Unit

An air handler is usually a large metal box containing a blower heating or cooling elements filter racks or chambers sound attenuators and dampers.

High pressure roof top air handling unit.

Package hygienic air handling units. Package pool dehumidifying units. The fan will modulate to maintain a pressure set point in the duct work. Founded in the early 1980 s dalair manufacture bespoke air handling units ahu s to serve office blocks shopping centres hospitals factories pharmaceutical companies car manufacturers and the like including specialised desiccant dehumidification units for use in archive stores and cold storage facilities for film and pharmaceutical use.

This air handler provides air to ddc variable air volume systems. Unit electrical data 12 supply air performance 13 unit dimensions 14 load distribution 19 typical wiring diagrams 20 contact details 22 1. Air handling units which usually have the acronym of a h u are found in medium to large commercial and industrial buildings. Air handler filter pressure sensor duct static pressure sensor.

So the air flow provided by the air handlers will modulate based on what the need of the vav boxes require and what the duct static pressure sensor is reading. They are usually located in the basement on the roof or on the floors of a building. Roof top package air conditioners. Ducted split units 6.

Air cooled scroll water chillers 3. Unat high pressure air terminal unit. Lower operating costs or standards such as leed include requirements for new low gwp refrigerants and create the need for products to support these changes in rtu designs. Air handling units 4.

Some models use a centrifugal blower wheel on both ends of the motor. Air cooled screw water chillers 2. Rooftop packaged units 5. A 10 ton packaged unit in a rooftop application placed on a curb.

Add these two pressures together to find the equipment measured total external static pressure. Air handlers usually connect to a ductwork ventilation system that. An air handler or air handling unit often abbreviated to ahu is a device used to regulate and circulate air as part of a heating ventilating and air conditioning system. The pressure entering the equipment is a suction or negative pressure.

Concealed split units 7. The level of energy savings is considerable even with a high content of static pressure. Air handling fan motor most air conditioning units has one double shaft fan motor with a centrifugal blower wheel on one end for indoor conditioned air and a propeller fan to circulate outdoor air through the outdoor coil. The pressure exiting the equipment is a discharge or positive pressure.

The constant innovation in rooftop unit rtu design is driven by new demands for higher energy efficiency and local regulations.