First post and (probably) stupid question on replacing an extractor

[pcxajb]

Hi there, first post that I’m hoping my totally novice terminology will make sense to people...

I had an envirovent silent 100ht installed but want to replace with a simpler silent 100s (that turned up today). I’ve removed the cover of the existing and notice the power cable has three cores - connected to the L, N and Ls points.

The replacement only has L and N, so the question is what do I connect where on the replacement, and what do I do with the remaining core?

The current setup is a separate wall switch inside the room with an isolator switch next to the extractor.

Not sure if I can upload photos from my phone - will do if it’s possible and needed?

Hope you can help!

Andy

 

[Wilko]

Hi Andy - sounds like you now need Ls (live switched) and N (neutral) connected to the new fan that has no timer. The remaining L (permanent live) should be safely terminated in the fitting, as you'll need it if you ever want a timer fan in the future.

 

[Andy5678]

Looks like you new fan doesn’t have a timer module. This will make it run on after the light is switched off.

Post some photos up so we can have a look

 

[pcxajb]

Wow didn’t expect replies so quickly (many thanks). Wilko, are you saying that the existing core going into Ls needs to go in L on the new extractor and the N still goes into N on the new one? So I remove what is currently going into L and wrap up in tape and leave unconnected?

Andy5678, yes it doesn’t have a timer but has its own ‘light switch’ - ie the extractor won’t come on with the light but is independent.

Trying to figure out how to post pictures from my phone.... will do in a couple of mins if I can work it out.

 

[pcxajb]

Think I’m posting pictures now.... unconnected one is the new extractor, connected is existing.

 

[Andy78]

NO, the unused live should be properly terminated into an insulated connection, not wrapped in tape.
Why the fan swap ? Looks like you've essentially bought the same fan except not timed

 

[pcxajb]

Andy78, I want to be in control of when it is on so I don’t need a timer. It’s in a utility room so would have it on when drying clothes. The original has a humidistat also but has only come on once, not what I was expecting. I’d rather switch the thing on and leave it so the room isn’t a muggy space when I come back.

Forgive me, what’s an insulated connection - is it possible to do with the replacement?

 

[WillWX]

Could have just removed the live, terminated correctly and looped the SL in your current fan and would’ve given the desired effects. Rather than buying a new fan

 

[Andy78]

Forgive me, what’s an insulated connection - is it possible to do with the replacement?

If you're unsure how to leave it safe then maybe a call to a local electrician would be a good bet for a quick cheap job.