bathroom extractor fan

[helpmeplz]

i am trying to replace a broken extractor fan. the new fan has a timer and has a L, LS,and N.
The old fan seems to have been on a loop as removing the unit has left me with two ends of cable with a red and black wire in each.
How can i wire this new timer unit with 3 connections using the 4 wires above?

[Taylortwocities]

And did we make a note of where the wires went BEFORE we took them off the old fan?

TTC

[helpmeplz]

yes, but it isn't much help to me as the old fan didn't have a timer on it whereas this one does hence 3 connectors.
The old fan just had live, neutral and earth. the wires from both cables were connected to same connectors with 2red - red , 2black-black and 2earth-earth (forgot to mention earth although new fan says isn't required for this model)
Should an extractor be on a loop like this? if so what would i use for the switch live and the live?

[Chivers7]

http://www.tlc-direct.co.uk/Technical/DataSheets/MK/3_Pole_Fan_Isolator.pdf hope this helps

[helpmeplz]

thanks looks useful, although time to call in an electrician me thinks.

[securespark]

If you have only 2 connections + E at the fan, you cannot run a timer fan.

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