bathroom fan

[which light]

Hello to all,

i am going to have a fan installed in my bathroom, and i was hoping someone ould explain the diffrence between timer fans ans standard fans, and do you have to turn these fans on and off yourself, etc. All information woul be handy.

Thanks in advance.

 

[breezer]

both fans you turn on your self, usualy via the light switch.

they they turn off when you turn off the light switch unless its a timer fan, it turns off when the timer runs out

 

[RF Lighting]

There are lots of types to choose from.

The standard fan is normally a mains voltage timer fan.

You first of all need to decide if you need a mains fan or an extra low voltage fan. This will depend on the proximity to the shower / bath.

Then you need to decide how you want the fan to be switched on. Your choices include a seperate switch just for the fan, the fan to come on as you switch on the bathroom lights, you could get a humidistat which automatically switches the fan on when the room gets above a set level of dampness / steam. you could get a PIR fan which will switch the fan on as someone walks into the room.

Then you have the option of an overrun timer which will keep the fan on for a set time after you have left the room. This is ideal for clearing steam after you have had a shower etc.

 

[which light]

Cheers guys for the quick responce and thorough answer.

From reading your replys am i right in thinking that an overrun fan and a timer fan are the same thing?

Also when you say that the fan can either be turned on by the light switch or by a switch that is soley for the fan, does that mean that when the fan is swicthed on by the light it does not need a fan isolator?

And when the fan is switched on by its own switch does it need to have a isolator and a fan switch or just a isolator?

Hope you can help, thanks in advance

 

[breezer]

Cheers guys for the quick responce and thorough answer.

1)From reading your replys am i right in thinking that an overrun fan and a timer fan are the same thing?

2)Also when you say that the fan can either be turned on by the light switch or by a switch that is soley for the fan, does that mean that when the fan is swicthed on by the light it does not need a fan isolator?

3)And when the fan is switched on by its own switch does it need to have a isolator and a fan switch or just a isolator?

Hope you can help, thanks in advance

1 yes

2 no

3 both, if it only had an isolator how would you switch it on?

 

[which light]

Once again thanks for your responce, if you dont mind could you answer another question for me.

Due to the fact that a bathroom fan needs both an isolator and a switch, would i be right in assumeing that it is therefore standard practice to connect the fan to the light switch, and i guess that it is also the easiest way to go.

thanks in advance

 

[which light]

Hello again, if you answer my question i promise it will be my last one

 

[EdwardCurrent]

Have we a neutral here ??

 

[which light]

The isolator will be connected to the light, so i guess the light neutral will be the neutral. Is that wright.