dimmer swicth install problems

[colinbeard]

hi i hope someone can help me i am trying to replace a standard switch with a dimmer.
the standard switch has 3 connections on it, L1 which has a yellow wire going into it, L2 wich has a brown wire going into it, com wich has a red wire going into it and an earth that is connected to the back of the box. the dimmer switch has 3 connections on it L SW and an ~ with an arrow through it. i understand that these mean Live Switched Live and Com is that correct?
out of the L1 and L2 wires wich goes to the L and wich to the SW? or have i got the wrong kind of dimmer?

there is also another switch in the room controlling the same light does this need to be changed to a dimmer too or can it be left standard?

any help would be greatly appreciated.

 

[sparkyspike]

You only need one dimmer. A second dimmer will interfere with the correct operation of the new dimmer.

What kind of dimmer is it? Is it a 2 way dimmer? If so, then just put the cables back into the corresponding terminals to the old switch. Is there also a terminal block in the switchbox with a blue and black cable in it?

 

[Steve]

It depends on the type of dimmer. Some require a slave dimmer, some require a normal switch.

 

[333rocky333]

Sounds like you need a 2 way dimmer.
However the one you have brought seems like, from the symbols on it,that it can only be used for 2 way, when a slave unit is also fitted to replace the other switch.

Hence the SW connection on it.

 

[colinbeard]

the dimmer is an electronic dimmer switch with remote control. im confused by the L1 and L2 connections on the old switch and the L and SW on the new dimmer does the L1 go into the L and the L2 into the switch or will this kill the switch?

 

[Steve]

the dimmer is an electronic dimmer switch with remote control.

You need a slave switch too then. Only about £8. It wont work with a normal switch across it.

 

[colinbeard]

ok i have bought a slave unit. do the wires go L1 (red) to L, L2 (blue) to SW, and Com (yellow) to ~ on both units?

thanks for all your help.

 

[333rocky333]

Not always that easy, you really need to determine the Live and the Switch Line.
The other core will be used for the SW to SW.

http://www.tlc-direct.co.uk/Technical/DataSheets/Systems/TouchRemote.htm