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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: mci services on June 12, 2010, 12:06:46 am

Title: peters wiring diagram for a relay to protect the pressure switch
Post by: mci services on June 12, 2010, 12:06:46 am

there was talk of a wiring diagram for fitting a relay to protect the pressure switch on a pump and here is a link. please moderators this is not a link to another forum but to an image of a diagram. there was a bit of interest a few weeks back and here it is. i will get the part number for the relay and post that as well



http://www.window-tools.com/images/relay.jpg

Title: Re: peter fogwells wiring diagram
Post by: mci services on June 12, 2010, 12:12:57 am

the product code is N02AW

this is available in maplins

hope it helps someone :)

Title: Re: peters wiring diagram for a relay to protect the pressure switch
Post by: Frankybadboy on June 12, 2010, 06:52:07 am

thanks stu that helps ;)

Title: Re: peters wiring diagram for a relay to protect the pressure switch
Post by: Nathanael Jones on June 12, 2010, 07:22:24 am

How does that protect the pressure switch ten?

Title: Re: peters wiring diagram for a relay to protect the pressure switch
Post by: [GQC] Tim on June 12, 2010, 08:47:53 am

I might be stupid, but why would you want to protect your pressure switch? From what?

Title: Re: peters wiring diagram for a relay to protect the pressure switch
Post by: Nathanael Jones on June 12, 2010, 09:09:16 am

Just read on Peter's forum that this design takes the amp load away from the pressure switch and uses the relay to handle the load instead. The switch only takes enough power to run the relay.

Seems like a lot of hassle to me,.. easier to replace the pressure switch!

Title: Re: peters wiring diagram for a relay to protect the pressure switch
Post by: Peter Fogwill on June 12, 2010, 09:53:24 am

Yes if you like spending money and replacing pressure switches.  The relay is much more heavy duty, and dosn't need replaced very often.  There is also the chance of loosing one or the little bits inside, or stripping the threads, with constantly unscrewing and tightening the screws.

Peter