HVAC Relay

	HVAC Relay

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Subject

Author

Date

HVAC Relay

CL (dnoyeB) Gilbert

07-11-2005

gfretwell

HeatMan

CL (dnoyeB) Gil...

HeatMan

FDR

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Posted by CL (dnoyeB) Gilbert on July 11, 2005, 1:24 pm

I am installing a few booster fans on my furnace. I want to get more
air to my bedroom that has some large windows which I think is why it
does not maintain the desired temperature, while many other rooms can.
I am also adding a booster to my computer room vent. My computers
generate a lot of heat which makes using the room suck in the summer.
In the winter I dont need the boost.

So I need a relay or a pair of relays to do this job. I looked in
Grainger and found a couple I think fit the bill.

Steveco 90-293Q
8A@120VAC inductive SPDT

and also
Steveco 90-290Q
8A@120VAC Inductive SPNO

and
Steveco 90-370
14A@120VAC inductive SPDT

I am considering 2x the 90-370 relay so I can disconnect one of them in
the winter time, and use both during Summer months. They have 24v coil
voltage. I am hoping this will work ok. Main problem is I don't have a
source for the relays. Grainger wont sell to public, and Radio Shack
don't seem to carry similar relays, and I don't see any at local
hardware store either.

Any tips on where I can find relays?

--
Respectfully,

CL Gilbert

Posted by on July 11, 2005, 2:47 pm

On Mon, 11 Jul 2005 13:24:10 -0400, "CL (dnoyeB) Gilbert"

>Grainger wont sell to public

Tell them you work for some big company and you are paying cash. The
counter guy just needs a name to type into the computer.
You can use #831455035 IBM if you like. I can use the activity on my
account. It is cash only ;-)

BTW the real answer might be a return down in that room if you can do
it.

Posted by HeatMan on July 11, 2005, 5:19 pm

> I am installing a few booster fans on my furnace. I want to get more

> air to my bedroom that has some large windows which I think is why it

> does not maintain the desired temperature, while many other rooms can.

> I am also adding a booster to my computer room vent. My computers

> generate a lot of heat which makes using the room suck in the summer.

> In the winter I dont need the boost.

If you need booster fans, you have a ductwork problem. If you only need the
additional cooling during the summer, won't a window shaker work?

If you DO put in the booster fans, you are guaranteed to have airflow
problems when the fans stop working....

Posted by CL (dnoyeB) Gilbert on July 12, 2005, 9:20 am

HeatMan wrote:

>>I am installing a few booster fans on my furnace. I want to get more

>>air to my bedroom that has some large windows which I think is why it

>>does not maintain the desired temperature, while many other rooms can.

>>I am also adding a booster to my computer room vent. My computers

>>generate a lot of heat which makes using the room suck in the summer.

>>In the winter I dont need the boost.

> If you need booster fans, you have a ductwork problem. If you only need the

> additional cooling during the summer, won't a window shaker work?

> If you DO put in the booster fans, you are guaranteed to have airflow

> problems when the fans stop working....

I can easily put in a new fan. So long as they sell one that fits.
Install is not too tough. The cool air does get into the room. This
room does not seem to keep the temperature though. Too many big
windows. I could probably buy better windows. The fan has been mounted
for like a year now, but i havent found the stinkin relay. So it could
be restricting my air even now.

Whats a window shaker?

As for my computer room, I mounted an exhaust fan in the window. It
does ok, but its quite noisy. Plus if I close the door it will start
sucking air in through the return as well.

--
Respectfully,

CL Gilbert

Posted by HeatMan on July 12, 2005, 12:37 pm

> HeatMan wrote:

> >

> >>I am installing a few booster fans on my furnace. I want to get more

> >>air to my bedroom that has some large windows which I think is why it

> >>does not maintain the desired temperature, while many other rooms can.

> >>I am also adding a booster to my computer room vent. My computers

> >>generate a lot of heat which makes using the room suck in the summer.

> >>In the winter I dont need the boost.

> >>

> >

> > If you need booster fans, you have a ductwork problem. If you only need

the

> > additional cooling during the summer, won't a window shaker work?

> >

> > If you DO put in the booster fans, you are guaranteed to have airflow

> > problems when the fans stop working....

> >

> I can easily put in a new fan. So long as they sell one that fits.

> Install is not too tough. The cool air does get into the room. This

> room does not seem to keep the temperature though. Too many big

> windows. I could probably buy better windows. The fan has been mounted >

for like a year now, but i havent found the stinkin relay. So it could

> be restricting my air even now.

Oh, they are restircting airflow, guaranteed...

> Whats a window shaker?

Another name for a window unit Air Conditioner .

> As for my computer room, I mounted an exhaust fan in the window. It

> does ok, but its quite noisy. Plus if I close the door it will start

> sucking air in through the return as well.

It's pulling air from anywhere, including the return...

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