Replacing bathroom extractor fan


Postby jayu » Wed Dec 30, 2009 3:55 pm

To whoever has put aside their turkey and Christmas pudding left overs and is surfing the net...

I've scored everywhere to find the answer to my problem but can't seem to find anything that suits...

I have recently had my bathroom refitted (but electrician has now moved onto other jobs) and it is completely finished with the exception of replacing my old wall-mounted Greenwood pull cord fan (without timer) with a new non-pull-cord Greenwood fan (inc light) unit with timer.

I am happy to activate the fan using the switch above the door on the outside of the room, wihout utilising the timer over-run feature so the lack of a pull cord doesn't bother me.

However, the existing wiring available in the hole that my old fan used to take up just has a live, a neutral and an earth but the new fan has a live, a neutral, an earth and a switched live (which I gather is to allow for the timer over-run).

So my question is - [b]can I connect the live-live, neutral-neutral and earth-earth and simply block off the switched live from the fan and not connect it to anything? Will this just mean that the timer won't work but the fan and light will switch on and off using the isolator switch outside?[/b]

Thanks to anyone that reads this and replies and apologies if is a simple question but I don't want to find myself ysing trial and error and making escalating problems in the meantime!!! :lol:
jayu
Rank: Labourer
Progress to next rank:
25%
Posts: 2
Joined: Wed Dec 30, 2009 3:42 pm

Sponsor

Simply Build It

Postby collectors » Thu Dec 31, 2009 4:24 pm

You would connect the live & neutral as per marker terminals. You would then quite likely need a small link wire from the L terminal to the LT terminal to trigger the fan.
collectors
Rank: Foreman
Progress to next rank:
32%
Posts: 296
Joined: Mon Dec 01, 2008 7:26 am

Postby sparx » Thu Dec 31, 2009 4:35 pm

Hi jayu,
it won't work unless you link both L & swL together at fan, whatever you do don't just connect to swL as it will burn out timer, which means even if you don't want it the fan won't run,
HNY,
Sparx
sparx
Rank: Project Manager
Posts: 2166
Joined: Wed Mar 21, 2007 8:33 pm
Location: The fifth continent.

Postby jayu » Sat Jan 02, 2010 10:37 am

Thanks for your replies Collectors and Sparx. So when you say "link both L & swL together at fan", I presume you simply mean put both wires into the same hole in the junction box connecting to the existing live wire coming out of the wall?
jayu
Rank: Labourer
Progress to next rank:
25%
Posts: 2
Joined: Wed Dec 30, 2009 3:42 pm

Postby sparx » Sun Jan 03, 2010 7:59 pm

Yup!

N-N, E-E, L&swL -Lfrom supply,
regards Sparx
sparx
Rank: Project Manager
Posts: 2166
Joined: Wed Mar 21, 2007 8:33 pm
Location: The fifth continent.

Display posts from previous
Sort by
Order by



  • DIY How to Project Guides

  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!



 


  • Related Topics