VENTS OV 4D 630

Combined supply and exhaust ventilation systems for various premises where high air flow at relatively low system resistance is required. 

OV fans can be used for the direct air exhaust or pressurization in smoke ventilation systems. 

OV fan are suitable for outdoor wall mounting.

The fan casing and the impeller are made of steel with polymeric coating. 

The impellers are powered by two-, four- or sixpole, single or three phase asynchronous motors with external rotor and built-in thermal overheating protection depending on the model. 

Both smooth or step speed control is performed by means of the thyristor or autotransformer controller. 

Fan is installed on the wall surface by means of a square OV series mounting plate.

The fan is powered through the external remote terminal box.

Power supply and installation shall be performed in compliance with the manual and wiring diagram on the terminal box.