F.A.Q

Check the direction of rotation of the motor, it must rotate in the direction of the arrow on the volute. When the motor rotates in the opposite direction, the air flow is in the right direction but with a very low flow rate.

To reverse the direction of rotation of a three-phase asynchronous motor, simply reverse 2 wires on the motor connection:

To reverse the direction of rotation of a single-phase asynchronous motor, the position of the copper plates and wires must be changed:

To reverse the direction of rotation of a single-phase EC motor, the direction selection input (brown wire) must be used:

• Connected to +12V => LG
• Not connected => RD

No, the impellers are different depending on the position (LG or RD), an inversion of impeller or volute will have a very strong impact on the flow rate obtained.

The motor must be installed inside the enclosed pedestal with the mounting brackets facing up.

We adjust the orientation of the motor to the type of pedestal. 

Check the direction of rotation of the motor. This fan is only available in the LG position.

Yes, it is necessary to use a VFD with a single phase 230V supply, this VFD will create three 230V phases generally connected in a delta configuration on the motor (refer to the fan installation manual).

Consult the nameplate and find out about your electrical installation. If you are using a 230V frequency converter, you should generally use the delta connection and if you have a 400V three-phase supply or a 400V VFD, you should generally use the star connection.

The smaller of the two voltages corresponds to a delta circuit.
Caution! For 400/690 motors the delta connection must be used with 400V.

Many parameters (diameter, type, equipment, filters, etc.) influence pressure drops, so do not hesitate to contact us to define the characteristics of your installation together. SEAT VENTILATION also provides training for you and your teams.

The volute must not fill with liquid, if the position of the fan can allow rainwater to enter the fan, a drain must be provided and specified when ordering. Attention must also be paid to the condensation that may occur in the ductwork.

The fans can be used between -15°C and +60°C.

The following is a non-exhaustive list of products compatible with SEAT fans at 20°C :

The following is a non-exhaustive list of products NOT compatible with SEAT fans:

• Concentrated nitric acid
• Concentrated sulphuric acid 100%
• Bromine
• Diethyl ether
• Phenol
• Triclorethylene

Do not hesitate to consult us for any other product, the compatibility also depends on the temperature and the concentration of the product.

The fans are warranted against defects in material and workmanship for two years from the date of original shipment. Any unit or part found to be defective and reported within the warranty period will be replaced after a survey by SEAT VENTILATION, freight prepaid by the shipper. Wear and tear due to heat, abrasive action, chemicals, incorrect installation or use or lack of normal maintenance are not defects and are not covered by the warranty. Transportation to and from the factory for warranty repairs is not covered by the warranty and is the sole responsibility of the equipment owner.
The manufacturer will not be responsible for the cost of installation, removal, or reinstallation or for any consequential damages resulting from failure to meet the terms of any warranty

You can use our online selection tool ZEPHYR to help you choose your fan at: www.seat-selection.com