The power of the installations is calculated individually for each opening, based on the required air flow velocity and the power of cutting off drafts (calculated parameter DZ expressed in m/ sec).
The calculated perameter DZ = 2.5 m/sec is taken as the basis of this commercial offer.
The power of the proposed installation makes it possible to cut off drafts frontally directed to the doorway up to the calculated parameter DZ = 2.5 m/sec.
The calculation point is taken as a basis at a distance of 5.0 m from the doorway and at a height of 1.5 m from the floor level.
The purpose of the calculation is considered to be achieved if the installation works with the specified power, provided that there is no strong fireplace effect and assault drafts penetrating into the room.
Arwus installations are used to protect openings in the enclosing structures of the room from the penetration of cold air, drafts and heat loss in winter, protection from the penetration of warm air and loss of conditioned air in summer, as well as protection of premises from the penetration of small insects.