I figured out how to turn an inexpensive heat controller into a cooloing controller for my fans.
I purchased a heat controller from one of the reptile online shops(they sell for an average of about 25 bucks). They come complete with a probe, tho you have to silicone it where the probe ends onto the wires to make it water proof. It has a dial to set the temp and they work pretty good ( I use one for the heating pads on my frog vivarium). So I was at work today when the idea came to me how to use it to control cooling instead of heating. I purchased a realay from Radio Shack for 7.99, An extention cord from the local dollor store and used an old transformer that I had laying around....I think it was from an old video game or an old cell phone.
anyhow I wired the relay to the normal closed position, and pluged the transformer into the temp controller. Now when the temp climbs to the set point on the controller and the controller shuts down current, the realay turns current on to my fans. And when the temp falls to the set point and the controller turns current on to the relay the relay shuts down power to the fans.
So now I have a cooling temp controller for about 35 bucks. And no mods had to be made to the original equipment.
Thought I would share
Bob
I purchased a heat controller from one of the reptile online shops(they sell for an average of about 25 bucks). They come complete with a probe, tho you have to silicone it where the probe ends onto the wires to make it water proof. It has a dial to set the temp and they work pretty good ( I use one for the heating pads on my frog vivarium). So I was at work today when the idea came to me how to use it to control cooling instead of heating. I purchased a realay from Radio Shack for 7.99, An extention cord from the local dollor store and used an old transformer that I had laying around....I think it was from an old video game or an old cell phone.
anyhow I wired the relay to the normal closed position, and pluged the transformer into the temp controller. Now when the temp climbs to the set point on the controller and the controller shuts down current, the realay turns current on to my fans. And when the temp falls to the set point and the controller turns current on to the relay the relay shuts down power to the fans.
So now I have a cooling temp controller for about 35 bucks. And no mods had to be made to the original equipment.
Thought I would share
Bob
