Short version of question: can I use the dimmed output of a dimmer to connect to the switched live input of a timed extractor fan? The permanent live and neutral will not come from the dimmer switch (but will come fromt eh lighting circuit)
Long version.
Here is what I am going to use:
3 x mains halogens http://www.screwfix.com/app/sfd/cat/pro.jsp?cId=101162&ts=14883&id=46943
1 x showerlite fan http://www.tlc-direct.co.uk/Products/BGSLC.html
1 x inline fan located in loft http://www.tlc-direct.co.uk/Products/BGCFD200T.html
1 x behind tile bathroom switch with momentary output http://www.sensor.co.uk/BathroomSwitch.htm
1 x X10 LD11 din rail dimmer
The theory is:
The 'behind tile' bathroom switch (it is a low voltage sensor with a control box in the loft) provides a momentary action switched outlet when the tile is pressed. This output is put into the LD11 dimmer. The dimmed output dims the mains halogen lights and the low voltage halogen transformer in the extractor light.
My question is can this dimmed output be used as the switched live for the timer extractor fan? (the permanent live and neutral will come directly from the un-dimmed lighting circuit)
If I activated the timed extractor fan from the momentary action output of the 'behind tile bathroom switch' then the fan will only stay on until e.g. 20mins after the lights were turned on. This is obviously a problem if someone is having a bath for 1 hour as I think the 'showerlite' needs to have the extractro fan in operation when it is working otherwise the low voltage light will over heat.
Many thanks for any help
Long version.
Here is what I am going to use:
3 x mains halogens http://www.screwfix.com/app/sfd/cat/pro.jsp?cId=101162&ts=14883&id=46943
1 x showerlite fan http://www.tlc-direct.co.uk/Products/BGSLC.html
1 x inline fan located in loft http://www.tlc-direct.co.uk/Products/BGCFD200T.html
1 x behind tile bathroom switch with momentary output http://www.sensor.co.uk/BathroomSwitch.htm
1 x X10 LD11 din rail dimmer
The theory is:
The 'behind tile' bathroom switch (it is a low voltage sensor with a control box in the loft) provides a momentary action switched outlet when the tile is pressed. This output is put into the LD11 dimmer. The dimmed output dims the mains halogen lights and the low voltage halogen transformer in the extractor light.
My question is can this dimmed output be used as the switched live for the timer extractor fan? (the permanent live and neutral will come directly from the un-dimmed lighting circuit)
If I activated the timed extractor fan from the momentary action output of the 'behind tile bathroom switch' then the fan will only stay on until e.g. 20mins after the lights were turned on. This is obviously a problem if someone is having a bath for 1 hour as I think the 'showerlite' needs to have the extractro fan in operation when it is working otherwise the low voltage light will over heat.
Many thanks for any help