New version of the catalogue Mass ventilation of garages!
In the catalogue we present suitable fan types and possible ventilation methods for specific garage buildings.
The design method using Computational Fluid Dynamics (CFD) simulation software is commented on.
The catalogue can be downloaded here.

IRB/4-225 IP44 centrifugal fan

Radial fans for square ductwork suitable for general applications where low fan height is advantageous. Due to IP44 protection and higher operating temperature, they are suitable for ventilation of warehouses, restaurants, hospitals and sports halls.
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25 501,00 CZK excl. VAT
30 856,21 CZK incl. VAT
Availability: In stock [27.4.2024, 04:10] Update

Insert into the design HVAC program

Product code: SP279200040
EAN: 8413893737144
Product description
Cabinet

It is made of galvanized steel sheet, the cabinet is equipped with flanges for fixing to the square pipe. There is a revision cover on the casing, which, when removed, gives access to the motor and impeller.

Circulating wheel

is radial with backward curved blades, made of aluminium sheet. It is statically and dynamically balanced.

Motor

is asynchronous with short armature and external rotor. The motors are fitted with a thermal fuse as standard and the windings are in a moisture-proof finish with Class F insulation and operating temperature according to type. The ball bearings are grease filled for life. Protection rating IP44.

Square box

is made of black plastic as standard, is loosely connected to the motor supply cable and can be fixed with self-tapping screws to an easily accessible location on the cabinet.

Speed control

is carried out by electronic or transformer regulators by changing the voltage. We preferably recommend transformer regulators.

Mounting

in each position of the fan, preferably with the axis of the motor vertical, with regard to the revision work and the possibility of removing the revision cover.

Rotation direction

is indicated by an arrow stuck on the casing. The direction of rotation must be checked after commissioning.

Noise

emitted by the fan is listed in the tables for the four performance curves.

Instructions

The fans are suitable for general air handling applications where the low mounting height of the fan is advantageous. The fans are suitable for ventilation of warehouses, restaurants, hospitals and sports halls due to IP44 protection and higher operating temperature. They can also be preferably used in combination with heat recovery heat exchangers.

Full description
Downloads
Technical sheets, manuals and declarations
Catalogue sheet .pdf (202.70 kB)
Instructions .pdf (324.78 kB)
Declaration of conformity .pdf (360.80 kB)
Ecodesign .pdf (94.31 kB)
CAD files
2D .dxf (440.60 kB)
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