FAQ – FREQUENTLY ASKED QUESTIONS
Frequently asked questions and answers.
Is it possible to use the electric fans with a voltage of 230?
The electric motors for electric fans are of standard dimensions for use with Y-connection when joined to supply network with 3 times 400voltage.
If for any reason the need to use another voltage should arise (e.g.230V), it is possible to fulfil this customer request.
Does the electro motor have any thermal protection?
Is it possible to use electric fans in an environment where there is a danger of explosion?
Electric ventilators in EX design can be used in an environment where there is a danger of explosion. Both electro motor and plastic parts of the electric fan are modified to protect against the accumulation of static electricity.
Request for the EX design must be specifically mentioned when ordering because the producers distribute electric fans for use in both environments that pose a danger of explosions and those that do not.
Can the electric ventilators be used with all kinds of corrosives?
What is the difference in design between right and left configuration?
The designations left and right are used to describe the difference in the fans internal configurations. The words left or right define direction of the rotors movement inside the chamber of the electric fan when facing the inlet duct. Rotors designed for each configuration have different shapes and can not be mistaken. For more information see picture below.
Is it possible to use the electric fans for extraction of air containing aqueous fog, steam, or aerosol?
Is it possible to use electric fans to extract air containing solid particles?
Electric fans and their moving parts are constructed to extract air at a density of 1,2 kg.m-3 Moreover the properties of the material used to construct the fan do not lend themselves to long term exposure to falling particles.
In the event that it becomes necessary to use plastic electric fan for such a task, a particle separator must be fitted into the extraction chamber.