Cabinet
The fan cabinet is made of galvanized steel sheet, thermally and noise insulated, with a circular throat on the inlet and a square throat on the outlet. There is an access door on the casing for easy access to the fan and motor. The fan is belt driven.
Impeller
The fan is radial with forward curved blades and is made of galvanized steel sheet. It is statically and dynamically balanced.
Motor
is asynchronous with short armature. The motors are class F insulated with an operating temperature of -20 to +80˚C. The sealed ball bearings are grease filled for life. Protection rating IP55.
Clamps
is located on the motor housing as standard and is accessible by removing the fan inspection covers.
Mounting
For the standard design with horizontal discharge only and left-hand intake. On request, it can be supplied with right-hand suction or vertical discharge.
Speed control
is only possible in all sizes by frequency converter.
Rotation direction
is indicated by an arrow on the housing. The direction of rotation must be checked after commissioning; if the direction of rotation is reversed, the phase sequence must be changed.
Noise
The sound power values are given in the power curves.
Instructions
The fans are suitable for general air handling applications where low fan noise and a large power range are advantageous. Due to the IP55 protection, the fans are suitable for ventilation of restaurants, hospitals, sports halls, warehouses and production areas. Fans equipped with a rain canopy are suitable for central ventilation systems in residential construction, where they can advantageously replace outdated equipment during renovations.
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