What you say? Ro-ta-ry?

N

NoL

New member
:D

Two little beauties arrived at my door. My first instinct, oh cool, then realized that the package was insanely heavy! :)

Two rotary compressors just showed up. I'm not sure on HP but they aint bad for $15 a peice. I plan on making dual evaps/triple/ or strong single stage with them. Eventually cascade/autocascade. :eek:

Though they are great, one fell over during shipping and the top plastic peice cracked apart. Not a problem as I will be probably using 3-in-1's to run these if I can find them for cheap on ebay. And lovely enough, CSR was labeled too!

WOOT POWA!

(4 days till birthday money as well, so r22, condensers and other things arent far away! :yumyum: )
 

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:)

I love that smiley. Until I get some really good evaps though I'm going to make some cap in caps and abuse the bases for surface area.
 
And they arent obesely tall either!

These will make powerful single stages though. Rotary's pull heavy vacuum's so lower temps because of the boiling point dropping!
 
Niiiiiiice compressors dude! I'm gonna go order me one right now, I think this is the perfect compressor for me to mess with my first SS, whatcha think?

Keep us posted when ur other stuff comes and you start building!
 
I read on XS that using a second compressor as a vacuum pump doesn't create enough suction to reliably purge the system, is there any truth to that?
 
Its not as good as a vacuum pump. But rotary's do also pull a deep vacuum.

That and vacuuming once, purging system with propane, then re-vacuuming really solves the problem.
 
NoL said:
Its not as good as a vacuum pump. But rotary's do also pull a deep vacuum.

That and vacuuming once, purging system with propane, then re-vacuuming really solves the problem.
Click to expand...

That sounds like the answer then, I'm gonna go put in a low bid and see what I can get for a pair of em :p hehe
 
As if this wasnt enough excitement for me today, my reciprocating compressor showed up. This may turn into a gpu cooler or something, or it may just be used in some air chiling dehumidifier experiments! :)

It also came with a free filter drier...

Now I just need condenser's...
 
Copper plate arrived, 2x large condenser's ordered, 4x 120mm 120vac fans arrived already, flex lines and capillary ordered, copper caps and tee's ordered, table saw arrived for birthday..

Damn I'm broke. :)
 
Rotays can pull a 28-29hg vacuum which is good for purging the system but isnt enough to evaporate the water thats in the system. Then again its good enough seing as 1. our dryers that we use are way oversized as it is and 2. If you purge it enough you normaly get most of the water out.

nice looking comps there ;) . I have 3 matsus from that guy. nice pieces and hes a good guy :-D
 
For the vacuum one you could probably get away with a 3in1 seing as it isnt being used constantly. Rotarys actually dont need relays, just a start and run cap. If you are speaking about the matsu that need a supco? p0115 relay and start cap (or is it the other way around? need a run but not a start?)
 
The vacuum one has the entrails of an a/c and works fine. The rotary's have matching run caps, but I heard you dont need a start cap, but you do need a relay.

I have a 3-in-1 on my matsush1ta, but I want to get that off of there and I have a start cap coming (400-475uf 125v).
 
I have never run a rotary with a relay but I have used both run and start caps... wierd :D i havnt built a phase change system in around 6 months so ill have to get back into it for a bit :D
 
I'm running a 3n1 on my vacuum rotary and it seems to work ok... It does seem like the startup period is a bit lengthy though, not sure if that's from the 3in1 though?
 
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