Extractor fan wiring guide

[macadonald]

Hi guys,

Can someone please explain what the attached image is saying. I have not come accross LA; LB before and am also not certain what REB or the C refer to in the 2 diagrams.

This is for the wiring of an extractor fan from my bathroom light point. Intention is that the fan will turn on with the switch. I would have thought that a permemnant and switched live would be needed, but can't make sense of it.

All frustrating when there are absolutely no instructions apart from this picture.

I think the left pic is what I need.

Much appreciated

( can't figure out how to show the picture in my album, but here is a link that will hopefully worlk)

//www.diynot.com/network/macadonald/albums/

 

[holmslaw]

..

 

[riveralt]

If the fan is part of the mixvent td series then LA and LB could possibly refer to the two speed element of the fan.
The C in the box bit could be a simple two speed switch that is connected in line.
You will need something like this.

http://www.justfans.co.uk/two-speed-switch-p-652.html?osCsid=fed4afe144addbcc7e038b88d6045428

 

[macadonald]

Thanks guys, it is part of the MixVent range, which does have 2 speed settings and now that you say it, the picture makes sense.

As I don't want to bother with 2 speed settings, would you think that the pic on the right would be more applicable. Can I simply run a switched live to either LA or LB (depending on the speed I want) and the neutral?

Thanks

 

[riveralt]

You should just be able to run the live through a 3Amp FCU straight to LA.
However, this is the website of the S&P range - you might be better giving them a ring or email.

http://www.solerandpalau.co.uk/category.jsp?CATEGORYID=4

I am preety certain that the REB is a variable speed controller.