The pressure entering the equipment is a suction or negative pressure.
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.
Rooftop packaged units 5.
Air handling units which usually have the acronym of a h u are found in medium to large commercial and industrial buildings.
Package hygienic air handling units.
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.
Operation up to 150 pa esp thermally and acoustically insulated unit case ideal comfort and indoor air quality for all seasons.
This air handler provides air to ddc variable air volume systems.
Air handler filter pressure sensor duct static pressure sensor.
Roof top package air conditioners.
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.
They are usually located in the basement on the roof or on the floors of a building.
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.
Reducing speed by 20 can typically generate 20 30 savings in energy consumption within the air handling unit.
The fan will modulate to maintain a pressure set point in the duct work.
Unat high pressure air terminal unit.
The explanation for the high increase in energy efficiency within systems that have an ac drive resides in the affinity laws.
Air cooled screw water chillers 2.
Package pool dehumidifying units.
Ducted split units 6.
Some models use a centrifugal blower wheel on both ends of the motor.
A 10 ton packaged unit in a rooftop application placed on a curb.
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.
Concealed split units 7.
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 level of energy savings is considerable even with a high content of static pressure.
Add these two pressures together to find the equipment measured total external static pressure.
Air handlers usually connect to a ductwork ventilation system that.
Unit electrical data 12 supply air performance 13 unit dimensions 14 load distribution 19 typical wiring diagrams 20 contact details 22 1.
The pressure exiting the equipment is a discharge or positive pressure.
