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yzf250
13 Jan 05, 10:52 PM
Can anyone give me an example of using a humidity sensor with c-bus?
I want to use one in a bathroom to only put the fan on when steam is sensed. Does Clipsal make anything like this for c-bus or will I have to us some other brand and incorporate it in to the system?

Ross
13 Jan 05, 11:11 PM
Its amazing what can be found using the search button.

http://www.cbusforums.com/forums/showthread.php?t=172&highlight=humidity

Cheers

Scar
15 Jan 05, 06:35 PM
In my bathroom I have the fans come on automatically with the lights.

Generally I always have the lights on when showering.
I also have ceiling speakers as well as an LCD screen so I make sure that the fans run on for 10 mins after the lights are turned off to remove the last of the steam.

Another idea is a reed switch on the door. Most people if having a shower will shut the door. :)
Might be a lot cheaper and a lot more reliable than some sort of steam/heat sensor.

Cheers.
Jason..

Charlie Crackle
16 Jan 05, 01:18 AM
I have a flow switch on the Hot water pipe.

Shower light turns on when flow starts
Fan turns on 15 seconds later at 70% (so it is not noisy)

When water switched off fan turns off (so you dont get cold from the draft)
The light turns off 2 minutes later.

yzf250
16 Jan 05, 10:57 PM
Ive looked into it Charlie and a flow switch is what i'm going to do. Do you have it going into a c-bus coupler ?

znelbok
17 Jan 05, 07:58 AM
Fan turns on 15 seconds later at 70% (so it is not noisy)



How are you achieving this

Charlie Crackle
17 Jan 05, 09:22 AM
The Flow switch is connected to a Minder input. (It is then easy to acheive this)

No so easy with raw cbus. (to 70% is easy the 15 second delay is harder)

Charles

znelbok
18 Jan 05, 08:10 AM
Sorry Charles, I should have been more specific. How are you running the fan at 70% to reduce the noise

First assumption would be by using a dimmer, but I believe that is not good for a motor.

Mick

Charlie Crackle
18 Jan 05, 10:22 AM
Yes the fan is connected to a DIMMER unit.