In which direction does a snail motor suck in air?

In which direction does a 220V snail motor draw air?

The snail motor, widely used in ventilation systems and commercial range hoods, has a clearly defined direction of intake and exhaust.
Whether you’re replacing an older model or installing a new motor, knowing the intake direction is essential to ensuring an efficient and quiet installation.

Intake and exhaust: a single direction of operation

A single-phase 220V snail motor always draws in and blows out in a single direction.
Even if it is connected incorrectly, the direction of rotation does not change: the motor continues to draw in and expel air in the same way.
This is an important safety feature to prevent air reversal and ensure proper operation of the range hood.

How can you tell which side is for intake and which is for exhaust?

It’s easy to tell:

• The motor draws air in through both round sides

• It exhausts through the square side

Thus, air is drawn in through the circular inlets, passes through the fan, and is then expelled through the square outlet connected to the exhaust duct.

Good to Know

If you have any questions about the model or installation orientation of your snail fan, please don’t hesitate to contact our technicians.
At Ventilsogood, we’ll help you determine the correct installation orientation and the fan compatible with your system.