Duct Fan VENTS VKMz 250

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).

DESIGN

• 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).

MOTOR

• 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.

SPEED CONTROL

• Smooth or step speed control with a thyristor or autotransformer speed controller.
• Several fans may be connected to one speed controller provided that the total power and operating current do not exceed the rated speed controller parameters.

MOUNTING

• 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.