Large cap in cap evap and lineset

[n00b 0f l337]

I finished up a bit of a lineset for Fragtek a while back, shame he probably wont be using it. Otherwise just wanted to a show a bit of work. I purged with propane during this... "ordeal" of evap building. And its abusively big, but works quite well. ;)

.5" cap, then 1" 1.5" and 2" with a 3" x 3" copper base with holes drilled half way thru it under the caps for surface area. The plate is 1/4" thick and this sucker is heavvvyyyyy. :)
Capillary is 115" of .028 and suction is a flex line from drewmeister which is quite long (40" or so).

I'm going to cut down the base plate a little more, probably make an octagon out of it but cutting copper with only a hacksaw is a pain in the keister.

Comments and such..

Also, I know the cap size is rather huge, next time probably .5", 1", 1.5" and be done with it. Eh whatever. The caps are also damn expensive where I am, so if any of you know where to get cheap caps up to 2" or so please shoot me a PM.
http://img380.imageshack.us/img380/3082/evap9qp.jpg
http://img380.imageshack.us/img380/3370/lineset9rx.jpg

[MeltedDuron]

looks pretty good, see you finally got it brazed up now :toast:
A quick question tho, why the yellow flex line? it looks sweet, but why, and where you get it?

[Revv23]

pretty sure thats a toilet line. shouldnt be used 24/7 but ok for testing.

[n00b 0f l337]

Not a toilet line and perfect for 24/7. Its just like steel flex under a yellow paint layer it seems. I got it from drewmeister from EOCF and he's used it in quite a few units I beleive. Nice stuff and its pretty flexy as well. Most flexlines are rigid flexy, this is droopy flexy. :)

[Bergo]

wow, big :|

I make mine 1.5" (40mm) wide. my base is 1/4" thick. they're really easy to braze when they're this small, I remember brazing my huge old waterblocks, this is much easier.

I buy copper caps at a place called Centenial plumbing and heating, and they're really cheap.


EDIT: that line is for gas line (as in natural gas you would use for your furnace) it's not recomended for really cold temps, but it'd prolly hold up for a medium temp single stage, also not meant for really high pressure, so be careful, I've been advised against using it by several individuals, so I now use teflon SS braided lines from yellowjacket)

[jinu117]

Think those are 80psi working pressure with something like 200 burst psi. Be careful. Just don't make unit for someone else with things that aren't rated for... :)

[n00b 0f l337]

Oh yeah deifnetly not for cascades adn crap, but single stages I've used it 4-5 months conitnous no problems.

[martinjon666]

thats the line i have used and i haven't had any probs with it i could wish it was a bit more flexible but i only used 24 inches of flex, next time i'll use 36 just for fun. where can one buy those teflon braided from yellow jacket, i keep my eye open but i can never find them?

[Bergo]

I got my yellowjacket suction line through wolseley HVAC/R group, special order. it was $70 though :S thats for a 3' with female flare fittings on both ends, stainless steel braid, they're rated down to -70 continuous i think

[wdrzal]

Try R.E. michel Company, they have 5 distribotors in NJ

http://www.remichel.com/

don't tell them I sent you.;)

[n00b 0f l337]

So yeah its massive, but I have not managed to flood this evap yet, its just got so much space in it I geuss. Whats the best way to cut copper, by hacksaw this took me an hour to cut the plate and I'm not all that enthused about cutting 8 more lines.

[wdrzal]

what tpi are you useing, teeth point forward and you cut on the push stroke, use the full lenth of the blade.

[n00b 0f l337]

Dunno the TPI, stock to this saw from homedepot for $20. I cut on the push and use the full length though. Its a bit hard since I dont have a clamp bolted down. I hold it with my feet. :(

Itll probably be easier if i bolt it ot a table.

[martinjon666]

ROFL, yes it would be, clamps are cheap you should invest in one, as they are made out of metal you can use it to hold the wierd brazing jobs, 2 small pieces, and many other things. As to the cutting of copper i use the dremel with a cut off wheel or a metal cutting bandsaw, depending on how thick and how long the cut is.
:)

[Revv23]

dremel with a good cut wheel will do well.

[n00b 0f l337]

I got a dremel with a diamond wheel, it cant do crap to copper it seems unless its thin. :(

[martinjon666]

sounds like your diamond blade is a bot worn out, that is the only prob with diamond blades, they wear out, thay are great while they last, but they do wear out. i hit some insulation with mine and wore out quick.

[wdrzal]

:D How many toes do you have left?:p: Copper is actully hard to cut and mill and it dulls blades quickly. In fact its much harder than steel to cut and mill. first thought might be the oppisite thinking because its relativly soft it would be easy to cut. This is the quality that works againt you.Instead of chipping when cut like steel it drags on the teeth or bit dulling them.

[Revv23]

i just used standard cutting wheels last time i had to cut copper, walt is right, the softness makes it a pain because the metal seems to run away from you rather then cut off.

But for the size of your piece that shouldnt take more then ten minutes with some regular cutting wheels, you might break 2 of them, but i like them because they are alot cheaper then a diamond wheel. (i guess its time for me to try out a daimond wheel, i go through lots of regular wheels lol, i am too cheap)

[[XC] mysticmerlin]

ever tried the fiber reinforced ones on it? worth a shot and cheaper then the diamond ones.

[best [486]]

the flexline is from homedepot and is rated to .5 psi but i tested it at 100 for 3 days [with the flare fittings it came with] it just got 2 inches longer, so you should be fine

[n00b 0f l337]

Like I've said before, Drewmeister has used these in big 1hp units before and for 24/7 single stages they are just fine.

[[XC] mysticmerlin]

did you get it cut down? got pics?

[[XC] mysticmerlin]

is there a howto on a cap in cap BTW?

[n00b 0f l337]

Not yet, maybe tommorow or this weekend.