Connecting extractor fan to controller

[trecital]

Hi, I want to connect an extractor fan to a controller with humidity sensor and run-on timer.

The connection diagram that came with the unit has me a bit confused. The live and neutral connections are obvious,
but the connector for the fan is marked as NO, NC and C, which I understand to mean Normally Open, Normally Closed and Common.
However, that still leaves me blank on how to connect the two wires from the fan!!

Any help would be great.

The control unit is by S&P, called HYGRO 2. Photos of connections and wiring diagram below.

Untitled

• trecital
• 22 Apr 2012
• 1

Untitled

• trecital
• 22 Apr 2012
• 1

Untitled

• trecital
• 22 Apr 2012
• 1

Thanks

 

[riveralt]

Haven't you asked this question before?
http://forum.allaboutcircuits.com/showthread.php?t=69146
http://www.electriciansforums.co.uk...5342-connecting-extractor-fan-controller.html

If this is for a bathroom installation then it is notifiable and it would be much cheaper to get an electrician to fit it.

 

[Lectrician]

Think of the C and the NO as a switch.

Take your fan N from the controller N, and the live for the fan from the live in the controller, via the C / NO contacts.