motorized dampers

[shuswap]

new setup is will be using 1 ac for 2 rooms set up as a flip flop,the dampers i am getting are 24v ac ,my question is when i wat the dampers powered how does the transformer work,do i activate the 120 on the transformer that puts 24 v ac out jst like a doorbell transformer? anyone have any experience with these,pros/cons?

 

[Sat X RB]

"...120 on the transformer". so yr supply is 120?

 

[Hammerhead]

The one I was going to get works from 24-120v. Damper Comes with the transformer.

http://www.amazon.com/8-Damper-Closed-100-Shutoff/dp/B0007N73FK/ref=pd_sim_hi_2

 

[shuswap]

i was looking at these
http://www.ebay.com/itm/Suncourt-ZO...-/380515736034?ssPageName=ADME:X:eRTM:US:1123

 

[PoopyTeaBags]

these would hook up to a timer or tempature gauage correct?

 

[MegaHermie]

If its plugged in its closed and if its not plugged in its open. Simple timer on 12/12 will run your ac flip just fine. I've ran one for years with no problems. The only thing I would reccomended is to buy the totally sealing kind worth the foam if you plan on using co2. If they are only the type that seals 95% of the way it will fill up the room that is off with co2 during night cycle

 

[MegaHermie]

Just saw your link. You can seal up those kind with foam but I would reccomend a different kind I'd planning on co2.

 

[shuswap]

mega do u have a link for the ones you are talking about?

 

[MegaHermie]

Yeah but I'm on my phone. I just googled sealing motorized dampers and found a bunch in like 15 mins. Ill try to post up a link today or tomorrow.

 

[Tactician]

Hi Shuswap. I've installed alot of motorized dampers for 1 ac and 2 rooms. Check out rsl.ca in Vancouver, they are like the superstore for hvac. Ask for Ryan, he's a good guy to deal with.

 

[MegaHermie]

http://stores.ewcestore.com/-strse-12/URD-motorized-dampers-(round)/Detail.bok

 

[eyes]

if the damper doesnt come with the transformer, purchase a step down 120 to 24 v from radio shack.

 

[shuswap]

okay still in planning stages for new setup,now when using a ac with dmpers is it possible to run the co2 burner in the lower plenum alowing one burner for 2 rooms much like the ac?fan running constant in ac and each room having it own controller,any thoughts ?

 

[LEDNewbie]

I bought two 12" motorized dampers from Retrozone.com

I bought them with the badass Bellimo motors. Only motors to buy when getting motorized dampers!! Built like a tank and last forever!! Plus they only use something like 3-5 Watts!!

Think I payed something like $260 shipped for both dampers and a transformer. Great customer service there as well

 

[LeeROI]

I bought two 12" motorized dampers from Retrozone.com

I bought them with the badass Bellimo motors. Only motors to buy when getting motorized dampers!! Built like a tank and last forever!! Plus they only use something like 3-5 Watts!!

Think I payed something like $260 shipped for both dampers and a transformer. Great customer service there as well

Those do look better than the Suncourts I have. (as do the URD brand previously linked to).

 

[whatamidoing21]

How are you guys activating the dampers?

 

[Smokerman]

lots of info here http://www.forwardthinking.honeywell.com/products/zoning/zoning_products.html

 

[LeeROI]

How are you guys activating the dampers?

I plan to wire the transformer in parallel with the room exhaust fan. I figure the power damper will cause less back pressure and turbulence than a spring back draft damper.

 

[Jhhnn]

The best motorized damper setups have a limit switch & contactor to control everything else. The timer energizes the transformer, which opens the damper. The limit switch closes, sending 24v to the coil of the contactor to then energize everything else.

You can even get electronic switches that will sense when the fan comes on, for added safety. First the damper opens, then the fan comes on, then the light...

 

[mdk ktm]

Did you ever come to a conclusion? I have been racking my brain for the last couple weeks on what would be the most efficient and cost effective way to do it. It starts to get complicated when it comes to co2 controlling. I don't really want to buy 2 of everything.