The motion of the ocean; small reciprocating

[n00b 0f l337]

It's a 1/5hp little unit, r404a compressor, copeland.
Chilly1 blue with 100cfm 110vac fan.
20" Flex line, Chilly1 evaporator, unmodified.

250W @ -26.5C
200W @ -30.5C
150W @ -35.4C

At 250W, 240psi high side, 30psi low.
The charge is primarily R402a.
Captube is .031" capillary tube, probably around 6ft right now.
Custom accumulator and SLHX.

Small format, and pictures of the base coming up later, nice steel framework with some paint. Size fits for drop into a V2000 if my measures are correct.

Compressors a bit warm at 33C, but overall not even that bad. Still producing very little noise, quieter then a NF9FX on r134a The noise is all in that fan, but it's needed for the moment with this kind of condenser.









Hope you enjoy.

[runmc]

Very impressive Adam

[n00b 0f l337]

Just trying to show that compressor size is not the problem anyone should be thinking.
You don't need to go big at all.

[teyber]

its a cute little guy and looks to perform the part. nice unit

[Buckeye]

what is the actual size of the full unit ?

Nice job NOL

[n00b 0f l337]

18 by 8 by about 8 tall.
The unit fits within those specs easily.

[Buckeye]

That will fit in the bottom of a modded TJ07

[sdumper]

Hmmm r402a?

[n00b 0f l337]

Yep R402a.

[gunbo13]

Small and very efficient. Definitely my favorite combination. It is interesting seeing your pressure readings as I've just got done logging mine over the past few hours with HP80. You cool with applying this build here to 1hp+ and .036? :P lol

[Tetrafluorometh]

Nice Adam, i like it

[tool_462]

If you make any more smaller units like this...PM me

[lesstutrey]

now that would beat the crap out of my current plans for my v2000 just about perfectly. (just noticed after writing this you say it would fit in a v2000, want me to test fit it ) For a 24/7 system it would be lovely, assuming your board has overheating shutdown in the case something goes out. And 250w that's nice, what kinda peak startup wattage does it draw, around 450w?

[TopherTony]

Nice Adam. I like this. Not too sure on the wattage output on the processors these days. What would 250w be equivalent too on a recent chip?

[sdumper]

Nice Adam. I like this. Not too sure on the wattage output on the processors these days. What would 250w be equivalent too on a recent chip?

Honestly its hard to say but most folks seem to think an i7 loaded with 8 cores is hitting 300 watts.

[tiborrr]

Not trying to be an a$$hole, but R402a is worldwide forbidden in new cooling equipment as of Jan 1st 2010, the same goes for R-22a. I think R-507 would be a good drop-in replacement. Maybe a degree or two warmer evaporator but also few Psi lower discharge.

[sdumper]

Not trying to be an a$$hole, but R402a is worldwide forbidden in new cooling equipment as of Jan 1st 2010, the same goes for R-22a. I think R-507 would be a good drop-in replacement. Maybe a degree or two warmer evaporator but also few Psi lower discharge.

Seriously I wasnt aware of that r402a was illegal...

They still sell it: http://www.r22.org/prod_list.php?sci=16

But maybe its just for maintenance of existing systems.

[RoadconeTuning]

Not trying to be an a$$hole, but R402a is worldwide forbidden in new cooling equipment as of Jan 1st 2010, the same goes for R-22a. I think R-507 would be a good drop-in replacement. Maybe a degree or two warmer evaporator but also few Psi lower discharge.

im pretty sure the refrigerant police are going to be checking everyones home built phase change units...

[Praz]

The EPA published the rule on 12/15/2009 banning the sale or distribution of new systems using HCFC-22, HCFC-142b, or blends containing one or both of these substances effective after 01/01/2010.

[n00b 0f l337]

Yep; but that doesn't really bother me. I'm out of r402a and technically she was charged Dec 30th so woopie
Time to start working with my new tank of refrigerant

[blinker0]

Manufacturers cant make New equipment With R22 R402 But it will still be available for service work for a while. Or at least here in the USA

[Stelios]

Excuse me for this question .

Checking a pt chart of r402a , the temperatures dont match.

http://www.refrigerants.com/pics/ptchart.pdf

30 psi r402a is about -21C . How is it possible to measure -26.5c ??? Where do you measure -26.5C ????

Thanks .

[n00b 0f l337]

A matter of my rounding, in the first post the pressure is actually about ~25 psi. I simply rounded it when posting as I couldn't see my own pictures while typing.
The system is also not running JUST r402a, and the depression of the boiling point is very common with these additives.

The k-type probe though is on the side of the evaporator, a quarter inch or less from the base.

[sdumper]

A matter of my rounding, in the first post the pressure is actually about ~25 psi. I simply rounded it when posting as I couldn't see my own pictures while typing.
The system is also not running JUST r402a, and the depression of the boiling point is very common with these additives.

The k-type probe though is on the side of the evaporator, a quarter inch or less from the base.

If its not just r402 then what else are you using and is the load tester frozen solid?

[n00b 0f l337]

Tester was iced on the back, my load tester is insulated to get an accurate load reading. That's ice through the block and then quarter inch acetal.
R290 adds a nice boiling point depression while improving compressor temperatures at the cost of discharge pressure headroom.