The safest it can be seen on the fan itself, which are present on the outside or inside of the fan frame two arrows. Shows one of the two arrows in the direction of the interior or the rotor suspension aligned to the interior, there is a one-sucking fan. These are usually located at the front, side and bottom, while the rear and top fans usually carry the air from the housing and therefore does not need to be filtered.
In order to maximize the filter effect, an overpressure can be generated in the housing. This means that more air volume is pressed into the housing, as the same time is sucked from other fans from the housing. This prevents air from entering (and with it the dust) through other openings in the interior space that can not possibly filtered.
Are all the fans the same size, so should have more fans blowing out than move into the housing. Here, the power supply as an additional, pulling out fan is to be included, unless it's supply (fan page) is not directly from the outside (it happens when floor mounted). Is it different fans with different sizes and speeds to give the corresponding volume of air (m³ / h) in the data sheets for a good reference value, which in turn the overall volume of an absorbent must be higher than that of the fan blowing out.
Note: The area around the used slot fan should be flat and have no protruding parts where possible. This may otherwise interfere with the adhesion to the substrate.
• Size (frame): 560 x 140 mm
• Size (filter): 550 x 130 mm
• Compatibility: 4x 140mm fan slot
• material (filter): polyester mesh
• Colour: black (part), black (filters)
• Installation: mounting frame
No compatibility restrictions
Quick and easy cleaning
Effective filter effect at high air permeability