DIY CHILLER, FROM WINDOW A/C

[Dr. Dendrostein]

Yup, I just won't go to in depth on wiring it. Should be fun

 

[Ponraj A]

I am using similar set up but bigger using 1.5 AC compressor connected to a titanium coil and controlled by 16A Ringder RC112R thermostat. Running trouble fee for more than two years. As I am in India my chiller will run through out the day to keep the water temperature at 25.7 to 26.1c. We don’t need heater in our place [emoji3][emoji3][emoji3][emoji3].
Will post the pictures once I am back home.

Here are the photos

Outer unit

Connection to inside

Connected to Titaniumcoil

Just plug and play thermostat with 16A

 

[Mark Gray]

Nice idea I have a question for you guys are you running your refrigerant threw the titanium coils

 

[Dr. Dendrostein]

Nice idea I have a question for you guys are you running your refrigerant threw the titanium coils

I plan to

 

[Dr. Dendrostein]

Here are the photos

Outer unit

Connection to inside

Connected to Titaniumcoil

Just plug and play thermostat with 16A

I install similar mini split systems for customers . Yours has to be 12,000btu minimum, you know you could tee off and cool some of your home? Very nice. Thanks for photos. Many thanks

 

[Ponraj A]

I install similar mini split systems for customers . Yours has to be 12,000btu minimum, you know you could tee off and cool some of your home? Very nice. Thanks for photos. Many thanks

Thank you. It’s 1.5tonnes compressor. We in our home don’t use AC often. (Save electricity for reef)

 

[Dr. Dendrostein]

Thank you. It’s 1.5tonnes compressor. We in our home don’t use AC often. (Save electricity for reef)

Very nice setup. Thanks for sharing

 

[Mark Gray]

I install similar mini split systems for customers . Yours has to be 12,000btu minimum, you know you could tee off and cool some of your home? Very nice. Thanks for photos. Many thanks

By
Oh I may have many questions for you soon I have been thinking about installing a split system in my home. But back to your chiller I have never taken a window unit apart I guess there must be a way to recharge the refrigerant

 

[Dr. Dendrostein]

By
Oh I may have many questions for you soon I have been thinking about installing a split system in my home. But back to your chiller I have never taken a window unit apart I guess there must be a way to recharge the refrigerant

We add valves to them. There's valves you braze on, some straddle the pipe like clamp on using bolts. Many ways. You reminded me, need to see where my valves are stored

 

[Dr. Dendrostein]

By
Oh I may have many questions for you soon I have been thinking about installing a split system in my home. But back to your chiller I have never taken a window unit apart I guess there must be a way to recharge the refrigerant

@Mark Gray On choosing a mini-split. If budget permits go with Mitsubishi brand, ahead of the competition. Warranties great. But for a 1100 square foot home materials alone apprx. $6000-$9000. Depends where bought. But saving on electricity big.


@Mark Gray

 

[Dr.Xipoles]

Ive thought about this many times as I am a mech. engineer but what has held me back was not knowing what would happen when if it leaks- the risk of pumping the refridgerant through the coil which is in the water. Also, though titanium is ok in saltwater, its not a very good conductor of heat transfer.

How is the titanium working out so far?

 

[Ponraj A]

Ive thought about this many times as I am a mech. engineer but what has held me back was not knowing what would happen when if it leaks- the risk of pumping the refridgerant through the coil which is in the water. Also, though titanium is ok in saltwater, its not a very good conductor of heat transfer.

How is the titanium working out so far?

Titanium will non corrosive to salt water. When the coil is in one piece there is no chance of leak unless it’s damaged in transit which is obivious to see. Only care needed to be taken is while welding or joining the copper tube with the coil for leakage and again this joint is also out of water.

 

[TherealplexiG]

These DIY Aircon units to chiller have been used since many years in Asia. Especially if one has visited Indo and Sg.
Brazing would not be recommended.
https://www.swagelok.com/en/product/Fittings
use these fittings, they simple plug and play.
Aircon units chill faster compared to commercial chillers, they save a tonne of electricity.

Good luck mate.

 

[Dr. Dendrostein]

Ive thought about this many times as I am a mech. engineer but what has held me back was not knowing what would happen when if it leaks- the risk of pumping the refridgerant through the coil which is in the water. Also, though titanium is ok in saltwater, its not a very good conductor of heat transfer.

How is the titanium working out so far?

Thanks for info. Waiting on parts. I'm just going to put coils into tank. All connections outside of tank, so not freon into water. Simple design. You'll see soon.

 

[Dr. Dendrostein]

Titanium will non corrosive to salt water. When the coil is in one piece there is no chance of leak unless it’s damaged in transit which is obivious to see. Only care needed to be taken is while welding or joining the copper tube with the coil for leakage and again this joint is also out of water.

The connections will be flare fittings. A little silver solder.

 

[Ponraj A]

The connections will be flare fittings. A little silver solder.

I found this old picture of the coil when I have purchased it. Hope it will be helpful.

 

[ramkokz]

Here are the photos

Outer unit

Connection to inside

Connected to Titaniumcoil

Just plug and play thermostat with 16A

Really cool setup! I'm so glad see someone from India . Where did u get d titanium coil in India I have been trying for em for a long time now. Pls help me out

 

[Ponraj A]

Really cool setup! I'm so glad see someone from India . Where did u get d titanium coil in India I have been trying for em for a long time now. Pls help me out

Are you from India too ???

 

[ramkokz]

Are you from India too ???

Was in Chennai before.. Now blr

 

[Wilsonfeliz]

Waiting for parts, stay tune

Where did you order the titanium coil??