jlparsons
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| posted on 2/2/09 at 09:46 PM |
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And now for something completely different
Ok. Novel one this...
We've got an extractor fan in our bathroom, and it's a nice modern quiet one with a humidistat, but it still winds me right up when it
comes on at night and runs for a couple of minutes after whoever finishes up and goes to bed. Solution?
A single 240v flow switch on the hot water in-pipe to the bathroom to trigger it when someone runs the bath/shower/sink instead of the light switch.
After all it only needs to come on when someone runs the hot... unless they've just dropped the kids at the pool, in which case you'd hope
they'd wash their hands anyway so problem solved. Yes I know you can just use the isolator but that means it gets left off permanently.
So... anyone know where I can find a flow switch? I figured that this sort of thing would be fairly commonplace as a central heating component, but a
web search revealed nothing. Anyone know of such a thing?
Any resemblance to real persons, living or dead is purely coincidental. Some assembly required. Batteries not included. Contents may settle during
shipment. Use only as directed. No other warranty expressed or implied. Do not use while operating a motor vehicle or heavy equipment. Subject to
approval, terms and conditions apply. Apply only to affected area. For recreational use only. All models over 18 years of age. No user-serviceable
parts inside. Subject to change. As seen on TV. One size fits all. May contain nuts. Slippery when wet. For office use only. Edited for television.
Keep cool; process promptly.
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jonesier1
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| posted on 2/2/09 at 09:49 PM |
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fan
take the cover off the fan if its like mine there is a few really small switches in a block that you can set/adjust for time periods and off.worth a
look.
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Hellfire
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| posted on 2/2/09 at 09:50 PM |
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Third one down. Any good?
Phil
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Howlor
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| posted on 2/2/09 at 09:51 PM |
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How come it runs for the couple of minutes? Ours purely cuts in when you have been in the shower for 5 minutes etc. Never heard it other than when
showering. Have you got the humidistat set a bit too low?
Steve
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jlparsons
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| posted on 2/2/09 at 10:07 PM |
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quote:
Originally posted by Howlor
How come it runs for the couple of minutes? Ours purely cuts in when you have been in the shower for 5 minutes etc. Never heard it other than when
showering. Have you got the humidistat set a bit too low?
Steve
Interesting, maybe I've set it up wrong. Is yours triggered purely by the humidistat then, not the light-switch? Or is one or the other, or
both?
Any resemblance to real persons, living or dead is purely coincidental. Some assembly required. Batteries not included. Contents may settle during
shipment. Use only as directed. No other warranty expressed or implied. Do not use while operating a motor vehicle or heavy equipment. Subject to
approval, terms and conditions apply. Apply only to affected area. For recreational use only. All models over 18 years of age. No user-serviceable
parts inside. Subject to change. As seen on TV. One size fits all. May contain nuts. Slippery when wet. For office use only. Edited for television.
Keep cool; process promptly.
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jlparsons
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| posted on 2/2/09 at 10:08 PM |
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quote:
Originally posted by Hellfire
Third one down. Any good?
Phil
That's the badger! Not sure if I'll need it though, looking at Steve's post.
Any resemblance to real persons, living or dead is purely coincidental. Some assembly required. Batteries not included. Contents may settle during
shipment. Use only as directed. No other warranty expressed or implied. Do not use while operating a motor vehicle or heavy equipment. Subject to
approval, terms and conditions apply. Apply only to affected area. For recreational use only. All models over 18 years of age. No user-serviceable
parts inside. Subject to change. As seen on TV. One size fits all. May contain nuts. Slippery when wet. For office use only. Edited for television.
Keep cool; process promptly.
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Howlor
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| posted on 2/2/09 at 10:23 PM |
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Mine is purely triggered with the humidistat, although I have it so that you need the light on for it to work.
As I say it only comes on after about 5 mins in the shower.
If you want I could pop the top off and see how it's wired.
Steve
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Howlor
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| posted on 2/2/09 at 10:23 PM |
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Mine is purely triggered with the humidistat, although I have it so that you need the light on for it to work.
As I say it only comes on after about 5 mins in the shower.
If you want I could pop the top off and see how it's wired.
Steve
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jlparsons
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| posted on 2/2/09 at 10:32 PM |
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Ok, found a 250V 1A/15Watt flowswitch, £6. I like this cos it's like the budgee, cheap cheap!
Problem - the fan's going to draw more than that. Wonder if I could chuck a resistor in series to ensure it doesn't pull more than 1A
across the switch at full power - would it still switch? Ho hum... thoughts?
Any resemblance to real persons, living or dead is purely coincidental. Some assembly required. Batteries not included. Contents may settle during
shipment. Use only as directed. No other warranty expressed or implied. Do not use while operating a motor vehicle or heavy equipment. Subject to
approval, terms and conditions apply. Apply only to affected area. For recreational use only. All models over 18 years of age. No user-serviceable
parts inside. Subject to change. As seen on TV. One size fits all. May contain nuts. Slippery when wet. For office use only. Edited for television.
Keep cool; process promptly.
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jlparsons
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| posted on 2/2/09 at 10:38 PM |
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quote:
Originally posted by Howlor
Mine is purely triggered with the humidistat, although I have it so that you need the light on for it to work.
As I say it only comes on after about 5 mins in the shower.
If you want I could pop the top off and see how it's wired.
Steve
Thanks for your help mate, no need to worry checking though - I found the instructions for mine and it says it does have to be triggered by the light,
the humidistat purely keeps it on for longer if necessary. It was a B&Q one so it's probably not the bee's knees!
Any resemblance to real persons, living or dead is purely coincidental. Some assembly required. Batteries not included. Contents may settle during
shipment. Use only as directed. No other warranty expressed or implied. Do not use while operating a motor vehicle or heavy equipment. Subject to
approval, terms and conditions apply. Apply only to affected area. For recreational use only. All models over 18 years of age. No user-serviceable
parts inside. Subject to change. As seen on TV. One size fits all. May contain nuts. Slippery when wet. For office use only. Edited for television.
Keep cool; process promptly.
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mad4x4
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| posted on 3/2/09 at 07:30 AM |
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Why not wire the trigger to the Shower switch instead of the light switch, So when some one switches on the shower isolator then the fan will come on
and run. Then when the isolator is switched off (after the shower) it runs on for a time.
Scot's do it better in Kilts.
MK INDY's Don't Self Centre Regardless of MK Setting !
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jlparsons
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| posted on 3/2/09 at 11:02 AM |
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That'd be the best way to do it, without a doubt - but my shower is run off my combi boiler, there's no elastictrickery in it anywhere.
Doh!
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MikeRJ
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| posted on 3/2/09 at 12:50 PM |
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quote:
Originally posted by jlparsons
Ok, found a 250V 1A/15Watt flowswitch, £6. I like this cos it's like the budgee, cheap cheap!
Where does the 15W rating come from? Contacts are not usually rated in terms of power.
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