RE: Re: CBus control of extract fans?

["Paul Gale" <groups2@xxxxxxxxxxxxxxxx>]

So with a fan wired directly to CBus, you don't need any isolator?

Paul.

> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
> Of Phil Harris
> Sent: 22 May 2007 12:44
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] Re: CBus control of extract fans?
>
> No - the isolator was required because effectively they are
"double
> fed"
> with a permanent supply as well as the switched supply from the
> lighting
> circuit that is used as a trigger.
>
> The purpose of the specific extractor/fan isolator was to ensure that
> *ALL*
> feeds to the fan were isolated.
>
> Phil
>
> > -----Original Message-----
> > From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On
> Behalf
> > Of Gareth Cook
> > Sent: 22 May 2007 12:25
> > To: ukha_d@xxxxxxx
> > Subject: Fw: [ukha_d] Re: CBus control of extract fans?
> >
> > Wasnt an isolator required because they normally hang off the
light
> > circuit ?
> >
> > Now that mine are on individual relay circuits they have there
own
> fuse
> >
> >
> >
> >
> > ----- Forwarded by Gareth Cook/UK/IBM on 22/05/2007 12:09 -----
> >
> > Discussion
> > Main Topic
> >
> > ukha_d@xxxxxxx
> > Today 12:02
> >
> > .
> > Subject:
> > .
> > [ukha_d] Re: CBus control of extract fans?
> > .
> > Category:
> >
> >
> >
> > --- In ukha_d@xxxxxxx, "Paul Gale" <groups2@...>
wrote:
> > >
> > > Great - thanks everyone :)
> > >
> > > So apart from fitting the fan to the relay at this point, I
don't
> > need to worry about programming until later on after the build?
> > >
> > > Paul.
> > >
> > I am no electrician but I thought you have to wire the fan to an
> > isolator outside the bathroom?  What I have is a mains feed to
the
> > isolator from the light, a feed from isolator to the fan and a
feed
> > from a relay to the isolator.  So mains live goes light ->
isolator
> > patress -> relay -> isolator (where neutral also
isolated)->fan
> >
> > This means the fan can be isolated regardless of what the relay
> > setting is.
> >
> > HTH
> > Jon
> >
> >
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> >
> > Unless stated otherwise above:
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> > number
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Hampshire
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> >
> > [Non-text portions of this message have been removed]
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