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  1. General Electrical Discussion
    This is what i am trying to achieve. I have an exhaust fan in my basement that can be turn on from four different places in my house(3 washrooms and kitchen). I like to replace those switches to timer switch. If someone could tell me which timer switch to buy that be much appreciated.
  2. PLCs, VFDs, Motors and Controls
    I have a customer who is asking me to drop/dump the heated make-up air fan (to an autobody spray booth only), but leave the spray booth's exhaust fan on in the case of a fire. The customer says their fire company/contractor advised this change be made. As of now, I have always thought that...
  3. General Electrical Discussion
    I have a question that I am really not clear on. - Article 410.10(D) NEC 2014 gives the requirements for luminaires within a certain area. Would this area also apply to an exhaust fan? The fan is not a luminaire. Is there any other code reference regarding this type of thing? I am having trouble...
  4. PLCs, VFDs, Motors and Controls
    I am trying to control one motor operated damper from two separate exhaust fans on two separate circuits. These dampers need to operate so that they actuate when either or both fans are running. How can I do this. The dampers are 120 volt.
  5. Commercial Electrical Forum
    A job I'm working on I have a men's and women's bathroom next to each other. The lighting in them are both run off the same 120v circuit. Plans call for the roof top exhaust fan that exhausts both bathrooms to turn on when either one of the lights are turned on in either bathroom. The exhaust...
1-5 of 5 Results