DIY CHILLER, FROM WINDOW A/C

[Dr. Dendrostein]

I would put pictures in order, but there web format doesn't permit

 

[Dr. Dendrostein]

Insulate after pressurize pipe. No leaks then insulte

 

[Dr. Dendrostein]

After wiring unit. All units different. Being in the HVACR industry. Can wire in my sleep.

Units being different, won't go into detail with wiring

Pulled a vacuum, all ok. I charged unit

Again waiting for controller

 

[Dr. Dendrostein]

Finished

May not look safe, but all ground wires regound.

 

[Dr. Dendrostein]

Thermometer says 72°, from 84°. In 30- 45 minutes

 

[Stav]

Looks good! Let us know how it works after everything will be set includes the controller.
I’m telling you now I’m going to do the same! Thanks for sharing

 

[drevalenz]

Nice

 

[Dr. Dendrostein]

So, I'm waiting for temp. Controller. For now I use a timer, on 10minutes, off for 45minutes
Steady 76° all day long, in garage. 200 gallon tank

 

[Dr. Dendrostein]

Finally temp. Control

 

[Stav]

Waiting to hear next week how is it working, well done bro

 

[Dr. Dendrostein]

Still cooling.

 

[Stav]

Still cooling.

What do you mean still cooling? Isn’t it going off, you said after 40 min it made the temp around 72-76f it should go off after 1 hour and 30 min if I get you well.

 

[Dr. Dendrostein]

It took 30- 45 minutes to bring temp down from 84° to 72°. It's working. Now with temp. Control even better.

 

[Dr. Dendrostein]

Bump

 

[Lasse]

I do not know if you have this in US but in Sweden there is popular with floor heating. The pipes used to floor heating is Al pipes covered with a plastic shield. They are soft and you can easily make a round exchanger of them like yours titanium. I have use this construction in order to chill a reef aquarium from the normal chilling system in a building their I work. All connections well away from the water. Works very well - a simple solenoid valve connected with a temperature controller - on - off. Works for many years. example.

Sincerely Lasse

 

[Dr. Dendrostein]

I do not know if you have this in US but in Sweden there is popular with floor heating. The pipes used to floor heating is Al pipes covered with a plastic shield. They are soft and you can easily make a round exchanger of them like yours titanium. I have use this construction in order to chill a reef aquarium from the normal chilling system in a building their I work. All connections well away from the water. Works very well - a simple solenoid valve connected with a temperature controller - on - off. Works for many years. example.

Sincerely Lasse

I don't know. What you mention part of radiant heat system. If they have it here. Will try. Thanks

 

[Deep dive coral]

Hey @Dr. Dendrostein . Great build. I'm trying to figure out something similar as well. I'm not an HVAC guy but I am an electrician. If I sent you a model number of a window unit you think you can help me me out? Also could you use stainless coil as well? Instead of titanium?

 

[Chewbacca]

Very Cool. Years ago I had ran 3/8 poly tube too my refrigerator with 50 ft in fridge back to the tank with a poly ball valve inline to throttle temp and a small pump in the sump to circulate it.

 

[Dr. Dendrostein]

Hey @Dr. Dendrostein . Great build. I'm trying to figure out something similar as well. I'm not an HVAC guy but I am an electrician. If I sent you a model number of a window unit you think you can help me me out? Also could you use stainless coil as well? Instead of titanium?

Just notice your reply, let me know what your planning. Also if going with SS, I think 316ss, that's for marine. Was on Ebay for $70 with free shipping. 2 years ago.

 

[TherealplexiG]

Hey Doc,
No ss316 ain't gonna work. You the doc of dendro. I the doc of aquarium engineering.
You ouggta use titanium for this, the coil is available for 100, 150 dollars of China. You want me to hit you up with the link lemme know.
Also how to wire and run that up, I could show you with baby steps.