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Re: [Shop-talk] attic fan switches (does this exist?)

To: Peter Murray <peterwmurray@gmail.com>
Subject: Re: [Shop-talk] attic fan switches (does this exist?)
From: Bruce Bubeck <bbubeck01@gmail.com>
Date: Fri, 31 Jul 2020 07:50:02 -0400
Cc: Shop-Talk List <Shop-talk@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: Shop-talk@autox.team.net
References: <OFE7381D36.1E919074-ON852585B5.00449671-852585B5.00450714@mail.megageek.com> <B42D2812-872C-4310-A50C-7B262602CFD7@icloud.com> <CAJ8HLP9XK5aCqwP5X=s+nrWm8u7K15unLu4W4YAGo0GnunB95w@mail.gmail.com>
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Peter,
Not sure if this was mentioned already but make sure that whatever switch
you use has a motor rating for the fan you have. Some of those switches are
only rated for lighting loads.
Bruce

On Thu, Jul 30, 2020 at 11:00 AM Peter Murray <peterwmurray@gmail.com>
wrote:

> My solution is to have a switch in-line with the thermostat, in our
> upstairs hallway. When I don't want to hear the fan at 11pm, I switch it
> off.
>
> My fan in my attic has the standard mechanical thermostat that came with
> it. I think I set it a hair too low, or the hysteresis is too broad,
> because it'll still be running at 11pm. Then again, we've had 27+ days of
> 90+ here in Northern Virginia. It is nearly 11am here now and 89 degrees,
> and the fan is not on yet. (Hmm, did I turn the switch back on?)
>
> I know, Pat's heart bleeds for me.
>
> I like the idea of making operation of the fan a bit more sophisticated,
> but writing Arduino code is likely more than my wife, 3 kids under 8 and
> self-employment will allow. I'm looking at Home Assistant and some Z-Wave
> devices, but need to do more research before I start spending on hardware=
.
>
> The problem I'd had was that I wanted the fan to run to reduce melting
> when we had ice dams developing at the roof edge. Of course, the proper
> solution is to improve my insulation up there!
>
> -Peter
>
> On Thu, Jul 30, 2020 at 10:18 AM Pat Horne <patintexas@icloud.com> wrote:
>
>> I=E2=80=99m not familiar with x-10 but I assume you will be using like a
>> controller for a table lamp where the output is a socket. If you have a
>> controller with isolated contacts it=E2=80=99s even easier.
>>
>> If you want the x-10 to override  the thermostat so that the fan runs
>> until you turn it off, all you need to do plug a relay into the controll=
er
>> & wire its normally open contacts across the thermostat.
>>
>> Peace,
>> Pat
>>
>> Pat Horne
>> We support Habitat for Humanity
>>
>>
>> On Jul 30, 2020, at 5:34 AM, eric@megageek.com wrote:
>>
>> =EF=BB=BFI have an attic fan that is on a thermostatic switch.
>>
>> I was wondering if there was a way that I can have it on a  thermostatic
>> switch AND a remote switch (like X-10)
>>
>> What happens is that  I want to turn on the fan on some nights or days,
>> but it isn't hot enough to trigger it to go off.  If I reduce the
>> temperature setting, it stays on most on the time.
>>
>> But I do want it to go on if it gets too hot when I'm not home.
>>
>> Is there anything like this on the market?  I also couldn't figure out
>> how to wire 2 separate switches safely to accomplish this.
>>
>> Any ideas?
>>
>> Thanks.
>>
>> Mule
>>
>> "Be as beneficent as the sun or the sea, but if your rights as a rationa=
l
>> being are trenched on, die on the first inch of your territory." Ralph
>> Waldo Emerson
>> -Who is John Galt?_______________________________________________
>>
>> Shop-talk@autox.team.net
>> Donate: http://www.team.net/donate.html
>> Suggested annual donation  $12.96
>> Archive: http://www.team.net/pipermail/shop-talk
>> http://autox.team.net/archive
>>
>> Unsubscribe/Manage:
>> http://autox.team.net/mailman/options/shop-talk/patintexas@icloud.com
>>
>> _______________________________________________
>>
>> Shop-talk@autox.team.net
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>> Suggested annual donation  $12.96
>> Archive: http://www.team.net/pipermail/shop-talk
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>>
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>>
>> _______________________________________________
>
> Shop-talk@autox.team.net
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>
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>
>

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<div><div dir=3D"auto">Peter,</div></div><div dir=3D"auto"><div dir=3D"auto=
">Not sure if this was mentioned already but make sure that whatever switch=
 you use has a motor rating for the fan you have. Some of those switches ar=
e only rated for lighting loads.</div><div dir=3D"auto">Bruce</div></div><d=
iv><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On =
Thu, Jul 30, 2020 at 11:00 AM Peter Murray &lt;<a href=3D"mailto:peterwmurr=
ay@gmail.com">peterwmurray@gmail.com</a>&gt; wrote:<br></div><blockquote cl=
ass=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;p=
adding-left:1ex"><div dir=3D"ltr"><div>My solution is to have a switch in-l=
ine with the thermostat, in our upstairs hallway. When I don&#39;t want to =
hear the fan at 11pm, I switch it off.<br></div><div><br></div><div>My fan =
in my attic has the standard mechanical thermostat that came with it. I thi=
nk I set it a hair too low, or the hysteresis is too broad, because it&#39;=
ll still be running at 11pm. Then again, we&#39;ve had 27+ days of 90+ here=
 in Northern Virginia. It is nearly 11am here now and 89 degrees, and the f=
an is not on yet. (Hmm, did I turn the switch=C2=A0back on?)<div><br></div>=
<div>I know, Pat&#39;s heart bleeds for me.</div><div></div></div><div><br>=
</div><div>I like the idea of making operation of the fan a bit more sophis=
ticated, but writing Arduino code is likely more than my wife, 3 kids under=
 8 and self-employment will allow. I&#39;m looking at Home Assistant and so=
me Z-Wave devices, but need to do more research before I start spending on =
hardware.</div><div><br></div><div>The problem I&#39;d had was that I wante=
d the fan to run to reduce melting when we had ice dams developing at the r=
oof edge. Of course, the proper solution is to improve my insulation up the=
re!</div><div><br></div><div>-Peter</div></div><br><div class=3D"gmail_quot=
e"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Jul 30, 2020 at 10:18 AM P=
at Horne &lt;<a href=3D"mailto:patintexas@icloud.com"; target=3D"_blank">pat=
intexas@icloud.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote=
" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);=
padding-left:1ex"><div dir=3D"auto">I=E2=80=99m not familiar with x-10 but =
I assume you will be using like a controller for a table lamp where the out=
put is a socket. If you have a controller with isolated contacts it=E2=80=
=99s even easier.=C2=A0<div><br></div><div>If you want the x-10 to override=
 =C2=A0the thermostat so that the fan runs until you turn it off, all you n=
eed to do plug a relay into the controller &amp; wire its normally open con=
tacts across the thermostat.=C2=A0</div><div><br></div><div>Peace,</div><di=
v>Pat<br><br><div dir=3D"ltr">Pat Horne=C2=A0<div>We support Habitat for Hu=
manity</div><div><br></div></div><div dir=3D"ltr"><br>On Jul 30, 2020, at 5=
:34 AM, <a href=3D"mailto:eric@megageek.com"; target=3D"_blank">eric@megagee=
k.com</a> wrote:<br><br></div><div dir=3D"ltr">=EF=BB=BF<font size=3D"2" fa=
ce=3D"sans-serif">I have an attic fan that is on a thermostatic
switch.</font>
<br>
<br><font size=3D"2" face=3D"sans-serif">I was wondering if there was a way=
 that
I can have it on a =C2=A0thermostatic switch AND a remote switch (like
<br>
<br><font size=3D"2" face=3D"sans-serif">What happens is that =C2=A0I want =
to
turn on the fan on some nights or days, but it isn&#39;t hot enough to trig=
ger
it to go off.=C2=A0 If I reduce the temperature setting, it stays on most
on the time.</font>
<br>
<br><font size=3D"2" face=3D"sans-serif">But I do want it to go on if it ge=
ts
too hot when I&#39;m not home.</font>
<br>
<br><font size=3D"2" face=3D"sans-serif">Is there anything like this on the=
 market?
=C2=A0I also couldn&#39;t figure out how to wire 2 separate switches safely
to accomplish this.</font>
<br>
<br><font size=3D"2" face=3D"sans-serif">Any ideas?</font>
<br><font size=3D"2" face=3D"sans-serif"><br>
Thanks.</font>
<br>
<br><font size=3D"2" face=3D"sans-serif">Mule<br>
<br>
&quot;Be as beneficent as the sun or the sea, but if your rights as a ratio=
nal
being are trenched on, die on the first inch of your territory.&quot; Ralph
Waldo Emerson <br>
-Who is John Galt?</font><span>____________________________________________=
___</span><br><span></span><br><span><a href=3D"mailto:Shop-talk@autox.team=
.net" target=3D"_blank">Shop-talk@autox.team.net</a></span><br><span>Donate=
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