Bathroom Fan/Light

[MAD SPARK]

Dont know if anyones ever seen one of those fans with a downlight built in to it........??.. I cant find a link to one of the web.

Anyway. It has a transformer for the light and then the fan just gets connected seperatly 230V....

Does the fan need to have a fan isolator? It will be on its own independant switch on a simple on/off and the light incorporated in it will come on with the rest of the downlights.

Hope someone can help.

Cheers

 

[The Truth]

My understanding of it is that to comply with the 17th it needs to be protected by RCD.
also there is only a need for an "isolation switch" if there is no window in the room it is being fitted.

hope this helps.

that is ridiculous! windows?????!! get a grip man.

Yeah thats it.

I've asked this question elsewhere on the web and there seems to be so many different answers. Some say yes you definetly have to and others say only if it has no window and some say it needs a switched fused spur - it also says this in the instructions.???????????

HELP....i dont know which answer is right.. It would be better if i need no isolator at all then i can just go ahead as i wanted.

if someone can shed some light on this with some form of regulation or something it would be great.

also the lights are also wired in twin and earth shall i put a small junction box on and wire the fan and the transformer in flex?

whoever is talking about windows and wiring regulations in the same sentence IS OFF THERE HEAD.

its this simple my friend....

1. if its a timer fan ( mounted in loft ) it needs a 3 pole isolator located outside zones 1 and 2 or in the loft / outside etc

2. if its a timer fan with light you need the 3 pole isolator AND 30mA RCD protection ( bath regs )

3. if its a timer fan in the wall you need 3 pole isolator and RCD

4. if its a fan in the wall that only comes on with the light and has no perm supply then you only need RCD protection.

 

[neil2jo]

Dont know if anyones ever seen one of those fans with a downlight built in to it........??.. I cant find a link to one of the web.

Anyway. It has a transformer for the light and then the fan just gets connected seperatly 230V....

Does the fan need to have a fan isolator? It will be on its own independant switch on a simple on/off and the light incorporated in it will come on with the rest of the downlights.

Hope someone can help.

Cheers

Their sold through screwfix/elecricfix...see their web site, they often have PDF files to download

 

[DYCHE4230]

Yeah thats it.

I've asked this question elsewhere on the web and there seems to be so many different answers. Some say yes you definetly have to and others say only if it has no window and some say it needs a switched fused spur - it also says this in the instructions.???????????

HELP....i dont know which answer is right.. It would be better if i need no isolator at all then i can just go ahead as i wanted.

if someone can shed some light on this with some form of regulation or something it would be great.

also the lights are also wired in twin and earth shall i put a small junction box on and wire the fan and the transformer in flex?

The requirement in the instuctions for a fused spur maybe because the fan has to be protected by a 3 amp fuse?

 

[andyb]

4. if its a fan in the wall that only comes on with the light and has no perm supply then you only need RCD protection.

Not realy truth, all fans need in isolator. One with no permenant supply will just need a double pole isolator but it still needs one.

 

[paulrayner]

screw fix
Manrose Shower Light & Extractor Fan Kit 100mm - Screwfix.com, Where the Trade Buys

& put an isolator on it u can always turn the timer down on it so it dont run so long

 

[The Truth]

Not realy truth, all fans need in isolator. One with no permenant supply will just need a double pole isolator but it still needs one.

if the fan has no perm supply and only comes on with the light...then the light switch is the isolator. It can be turned off for mechanical maintenance that way. Does a down lighter need a DP isolator? i would obviously fit one anyway before i branded a cowboy

 

[andyb]

I agree with your reasoning Truth, but the light switch does not isolate the neutral which the regs call for (a downlight is not motor)

 

[Roger]

Hi picked up on this thread about bathroom fans.Can you clarify for me,must a bathroom fan have a isolation DP switch outside the room ?,or can it be inside.I lent my regs book to a friend and have yet to see it return.Current house at the moment has a fan in a downstairs bathroom feed from the lights,no means of isolation.
Regards,
Roger

 

[andyb]

Going by the reg's it can be fitted outside zones.

 

[The Truth]

I agree with your reasoning Truth, but the light switch does not isolate the neutral which the regs call for (a downlight is not motor)

i'm hanging up my screw drivers

 

[andyb]

Truth, we all know a 4'' manrose fan can rip a mans arm off.

I'm with you truth, in my own house and for people I know I do not fit an isolator if they so request, what's the pir non compliance? code 4? Hardly a hanging offence.

Otherwise I fit one, unfortunately a 4'' extract fan has been swept into the same clasification as 'motors' and 132.15.2 applies.

To hell with it, where are you hanging your screwdrivers? I'll hang mine next to them and we'll go for a pint.

 

[The Truth]

its no laughing matter andy..... i could have really hurt someone..fitting a vicious 4inch manrose in a room WITHOUT a window or a switch.. i appreciate your support but i cannot go day to day knowing that im a code 4. im flying to close to the edge goose

 

[SirKit Breaker]

Fan isolators are normally outside the room and are 3 pole Live Neutral and earth, this is to enable maintenance in rooms without windows. Even if the room does have windows a3 pole switch is still required to isolate the motor in case of emergency.

Cheers.........Howard

 

[The Truth]

what is this window obsession everyone has?!!! who started this ?? own up. am i being retarded here ?but please what has a window got to do with mechanical maintenance or isolation of an electric fan. i want a proper answer!

 

[Spudnik]

I seem to remember is was in the EGBR or similar.

Cat be 100% sure though.