Guys,
A mate of mine is installing a Civil Defence siren at one of the local fishing villages outside of Ashburton.
This is a 3kW 400V motor with a single ended impeller unit on the end of the motor shaft.
My question is, does it matter which way the motor rotates the impeller?.
I replaced the motor on the local fire-station siren here last year some time and never really thought about the direction of rotation, it obviously works in the direction I chose, but is the rotation direction really that important?.
We are after all just talking about a fan that makes noise by virtue of the holes in the case that houses the impeller.
What's your take on this?.
Your input would be most appreciated.
