Stc1000

[dogslapbrewery]

Any one know how I can wire one outlet to this pid that turns on only when either the hot or cold relay are running? I Tryed runningthe hot wires from each relay but being a AC current it runs back into the other outlets causing both hot and cold to turn on??

 

[day_trippr]

There are break-away tabs on the hot/neutral sides of most duplex outlets connecting the two sockets together. Break off the one for the hot side (leave the neutral connection intact), and the two circuits will be separated...

Cheers!

 

[raouliii]

The hot and cold AC output of the STC1000 must remain isolated from one another. It can be done with 3 relays. The hot and cold AC outputs would control one relay, each. The contacts of each of these two relays would be tied together to control the third relay, the contacts of which, would send power to the outlet.

There may be dual coil relays available, which would also work, but a quick search only turned up latching (set/reset) relays, which is not what you want.

Is this for a air circulation fan? Why not just leave it on all the time?

Edit: Oops, maybe I misread the question.

 

[dogslapbrewery]

Yeah its just a little circulation fan in my ferm chamber. I've just been leaving it running but figured if it was possible why not save the energy. You think if for another 12v power back and wired the fan to both power sources?

 

[dogslapbrewery]

I already clipped the power side if the outlet so its isolated but the current must go back up through the ground and turn both outlets on..sneaky AC current!

 

[FuzzeWuzze]

Yeah its just a little circulation fan in my ferm chamber. I've just been leaving it running but figured if it was possible why not save the energy. You think if for another 12v power back and wired the fan to both power sources?

So your going to spend tons of money on relays?

The small PC fans run at ridiculously low amperage, one SSR will be the same cost as running the fan constantly for years, let alone the 3 SSR's you will need.

If you really care about the power still for some reason just go buy a cheap electric wall timer and plug the fan into that and have it cycle every 4-8 hours or something.

 

[Wynne-R]

How about a couple of diodes? It’ll cut you down to half current in the fan, but that should be enough.

 

[dogslapbrewery]

Well I wasnt about to buy another relay lol but I do have a box full of DC packs.

 

[RocketBrewer]

How about just running two fans? One for cooling cycle and a separate one for heating cycle.

 

[dogslapbrewery]

Hmm didn't even think about that! Think that's the road I'll taking considering I have boxes full of computer fan parts

 

[day_trippr]

I already clipped the power side if the outlet so its isolated but the current must go back up through the ground and turn both outlets on..sneaky AC current!

LOL! I totally didn't get your original question - you essentially want a logical "OR" of the two relay outputs to control your fan. I missed that completely.

More relays or SSRs would do it, but I agree with the sentiment that it'd be money ill spent. Stratification happens whether a compressor or heater is running or not, so I leave the tower cooler and stirring fans in my keezer and cold fridges running 24/7...

Cheers!