Need a cheap 40 ton at -5°F Chiller

[crised]

Hello,

Looking for a low temp Chiller of 40 ton at tevap: -5°F.
The cheaper the better.

Any ideas?

As an alternative I was considering a commercial chiller of 100 ton, but this would be ineffiecient.

Thanks!

[flange]

cheap at -5? can drake do one for you at that temp? probably. I know rae-tsi can. is that -5 evap or leaving fluid temp?

[crised]

cheap at -5? can drake do one for you at that temp? probably. I know rae-tsi can. is that -5 evap or leaving fluid temp?

tevap = -5 ° F. Who is drake?

[flange]

manufacturer of small process chillers, owner by united refrigeration i think, and located in pa. usually sold through reps or united.

[crised]

ok. I was thinking in making a Chiller from a Condensing Unit, but must be pointless,for economic reasons. Where I can find a surplus or used Chiller like this?

[crised]

Which type of Compressor do they use? Copeland, Carlyle, Bock...?
Do those manufacturers produce quality chillers?

[flange]

Rae makes a nice product, custom designed for your application, there are others as well. When you get away from comfort cooling applications, it usually is a custom machine. What compressors do you want? they will use them.

[crised]

I am not sure which compressor to Choose. Nowadays most of them are screw type. I thought for low temperature reciprocating were the best.

[servicetrane]

so that you will serve the chiller? processo ice machine

[crised]

so that you will serve the chiller? processo ice machine

Sorry, but I don't understand

[milkyway]

yea., i would try drake., prob have a scroll compressor in there.,
simple design and easy to install., some misc water valves., elec and ur done., as far as a c/o goes anyways,.

[crised]

scroll? On low temp?? I thought that they were only for med temp.
Which is the best for low temp, reciprocating, scroll or screw? Let's say for a 50 hp compressor..

[flange]

In most cases, recips will be slightly more efficient than screw at low temp, but require more maintenance. Screws on the other hand get tossed in the trash when something bad happens. its a trade off.

[crised]

The recips need mainteinance? Or need repair when they burned?

I have recips running for 20 years.


In most cases, recips will be slightly more efficient than screw at low temp, but require more maintenance. Screws on the other hand get tossed in the trash when something bad happens. its a trade off.

[flange]

depends on manufacturer, but top end maintenance is not uncommon on larger machines. bottom end maintenance is less common, and done even less. just because they are running doesnt mean they are doing so efficiently.

[milkyway]

In most cases, recips will be slightly more efficient than screw at low temp, but require more maintenance. Screws on the other hand get tossed in the trash when something bad happens. its a trade off.


yep when screws fail., just a heavy azzz paper weight.,.,

recips r the better and more efficent for refrigeration., for -5 evap ., sounds like an ammonia job.,.,

[flange]

we just did a rink with four bitzers and 507, things runs nice. only issue i got is the customer just doesnt get the vfd on the tower, and keeps asking "why does my tower fan keep running"

[milkyway]

all u can do is explain., he will go for it., maybe?