Applications – Supply and exhaust ventilation systems for various premises suitable for external surface mounting. For premises with high requirements to noise level we offer units in low-noise modification (VKMz…Q).
The fan casing is made of galvanized steel. For easy connection and operation the fan can be equipped with the power cord with a plug (VKMz…R).
The impeller with backward blades is powered by the single-phase motor with external rotor and
overheating protection with automatic restart. The motor is equipped with ball bearings for long service life designed for at least 40 000 hours. For precise features, safe operation and low noise, each impeller is dynamically balanced while assembly. Motor protection rating IP 44.
Both smooth and step speed control is performed with the thyristor or auto transformer controller.
Several fans can be connected to one controller in case the total power and operating current do not exceed the rated controller values.
Mounting at any angle to wall or ceiling is performed with fastening brackets supplied with the unit. The fan is powered by means of the external terminal box. Electric connection and mounting shall be performed in compliance with the manual and wiring diagram on the terminal box.