Compressor Shopping

[epion2985]

looking for a 1/2hp compressor as quiet as possible.

anyone has one they want to sell?
or
can anyone point me in a good direction for purchace?

No luck from ebay, and I couldnt find any online venders =/

maybe I did a lousy ebay search *shrug
this is all I got

http://search.ebay.com/search/search.dll?sofocus=bs&sbrftog=1&from=R10&catref=C6&satitle=compressor&sacat=42909%26catref%3DC6&bs=Search&fsop=1%26fsoo%3D1&coaction=compare&copagenum=1&coentrypage=search&fgtp=&sargn=-1%26saslc%3D2&sadis=200&fpos=ZIP%2FPostal&ftrt=1&ftrv=1&saprclo=&saprchi=

[.sentinel]

I guess that Danfosses are nice and quiet.

[jinu117]

Quiet one for sure is old Americold from Kyrotech Super G. I think it is 1/2hp. Company is out of business and so is Americold so you will have to search for old Kyrotech Super G laying around.
Not sure how quiet it is but embraco NEK series have some interesting very high energy efficient compressors out there. Considering Chilly1 is using 1/5hp energy efficient ones that are doing as good as any 1/4hp+ one out there, you might want to look for 1/4hp or 1/3hp energy efficient compressors.
I have one from Danfoss on order and one from embraco (both 9cc highly energy optimized compressors) and waiting for them to arrive to compare to 9cc compressors and 12 cc compressors in my hand. Based on specification it should do almost as good as Danfoss SC10CLX (which is 1/2 hp compressor)

[RussC]

this store on Ebay has some compressors, theres more, but i didn't look that hard.
compressors at da'bay (http://stores.ebay.com/Thermostats-Unlimited)

RussC



looking for a 1/2hp compressor as quiet as possible.

anyone has one they want to sell?
or
can anyone point me in a good direction for purchace?

No luck from ebay, and I couldnt find any online venders =/

maybe I did a lousy ebay search *shrug
this is all I got

http://search.ebay.com/search/search.dll?sofocus=bs&sbrftog=1&from=R10&catref=C6&satitle=compressor&sacat=42909%26catref%3DC6&bs=Search&fsop=1%26fsoo%3D1&coaction=compare&copagenum=1&coentrypage=search&fgtp=&sargn=-1%26saslc%3D2&sadis=200&fpos=ZIP%2FPostal&ftrt=1&ftrv=1&saprclo=&saprchi=

[star882]

Look for a scroll compressor. They're about 3 times quieter than recriprocating compressors.

[Stewie007]

Scroll compressors are by nature quiet. Unless you get something sub standard, like Embraco or the likes, you're going to be satisfied with the noise production, or lack thereof.

[epion2985]

There is always a catch :) . Whats the downside to a Scroll compressor vs a recriprocating compressor?

Any good brand recomendations?

If Scroll compressors are so nice why are they not widely used in our applications like the recriprocating compressors are?

PS: does scroll mean rotary or is it a totaly different ballpark?


PSS: was looking at these two units. One is set up for R134A other for R12. Is that just in reference to the oil? I would guess R507 would require different oil anyway. Wonder how much noise these units make.

http://cgi.ebay.com/Copeland-ART51C1E-IAA-959-1-2-HP-R134A-115-60-1_W0QQitemZ7549355517QQcategoryZ42910QQtcZphotoQQc mdZViewItem

and

http://cgi.ebay.com/Copeland-ART62C1-IAA-959-1-2-HP-R12-115-60-1_W0QQitemZ7549368128QQcategoryZ42910QQtcZphotoQQc mdZViewItem

there is also this 1/3hp unit, looks like it would do the job well:

http://cgi.ebay.com/Copeland-ARE37C3-IAA-901-1-3HP-R12-115-60-1_W0QQitemZ7549246226QQcategoryZ42910QQtcZphotoQQc mdZViewItem

how would it stack up against the 1/2hp units above noise wise?

[the_new_guy]

134a and 507 use poe r12 uses mineral

all are ht application i think you should look from a low temp compressor

[star882]

PS: does scroll mean rotary or is it a totaly different ballpark?
A scroll compressor uses two snail-like spirals that are pushed against each other.
http://www.copeland-corp.com/cp_rf/prod_sol/cp_rf_products_scroll.htm

[epion2985]

134a and 507 use poe r12 uses mineral

all are ht application i think you should look from a low temp compressor

whats ht? Its a good thing I asked because I have no idea how to shop for one. How do I know if it is a low temp compressor?


A scroll compressor uses two snail-like spirals that are pushed against each other.
http://www.copeland-corp.com/cp_rf/prod_sol/cp_rf_products_scroll.htm

thanks that helped alot :)

--------------

Scoll Compressors look nice, I am intrigues. How come everyone here uses a recriprocating compressor? Only minus I see it Scroll compressors are tall and would be hard to fit in to a case but there is probbably alot more I dont know.

I dont suppose there are scroll compressors 10" high or less?

[epion2985]

http://cgi.ebay.com/Tecumseh-AEA2415AAB-1-3HP-R12-Low-Temp-Compressor-115v_W0QQitemZ7509769656QQcategoryZ11881QQtcZphoto QQcmdZViewItem#ebayphotohosting

this one sais its for low temps but is this low enough? -40F = +4.4C

# Bill Of Material AE334AT-663-J7COMPLETE WITH SUCTION SERVICE VALVE
# Evaporating Range-40F to +10F Displacement0.981
# Rating ConditionsASRE/T BTUH 1525 @-10SST
# Horse Power1/3
# Refrigerant R-12
# Voltage ( 60 Hz )115-60-1 Voltage Range ( 60 Hz )103.5 - 126.5
# LRA 40
# Motor Type CSIR
# Start Capacitor Mfd/Volt 270-324/110 Motor Torque High
# Maximum Continuous Current 8 amp
# ESP Relay P82473
# Fan Over Load P83533
# Shipping Weight 32lbs

[Death909]

-40 is -40 no matter how you look at it. Its the only temperature where Celcius and Farenheit are the same. -40c = -40f.

[jinu117]

That tecumseh price sounds bit high to me. Why not grab danfoss SC12CLX? Bit cheaper brand new and 1/2+ HP compressor that we all know does VERY well.

[epion2985]

That tecumseh price sounds bit high to me. Why not grab danfoss SC12CLX? Bit cheaper brand new and 1/2+ HP compressor that we all know does VERY well.

I will gladly take your advice. How much noise does it put out (in dB)?
Not counting the fan just the compressor.

Little Poll:

How does your compressor compare to generic air cooling in terms of noise (average heatsink/fan cooler 50 dB? my guess)

[jinu117]

Louder than NF9FX. But quieter than tecumseh that is mentioned above. It's the sound characteristics too. Some are just unbearable while some are okay. Danfoss SC sounds more like vapochill LS kind of noise level. (which I STILL don't like but considering it is 1/2hp I can't complain) Supposed to get one more this week and this one might sound different (I have only old one in my possesion now). I don't think any tecumseh is known for it's quietness though. Reason Danfoss generally quieter probably is the European code about noise level being stricter than in stateside... :P (These compressors do get used at places like restraunt, etc after all) Danfoss's highly energy optimized level compressors are limited to 9cc or 10cc right now for 115v units but I see embracos with big cc that is available. (last time I checked price, it was not cheap though... 1/2hp was close to price of tecumseh you mentioned) Might want to look into those too. WWW.EMBRACO.COM and look for NEK series or Danfoss.com and look for NTY series for specification and compare it to what you were going to get to find closeset match :)

[epion2985]

Thanks I will do that tonight and post what I found.

*I have decided to step down to a 1/3hp or maybe even a 1/4 if the 1/4 is extreemly powerfull for the amount of noise it produces*

Trying to make a really quiet setup, since it will be 1. on 24/7 and 2. on when my girl is asleep in the same room :)

I am looking at the Lian Li PC-V2100 for the case, planning to add ALOT of vibration dampning material and soundproofing. I was going to make limited ducted vents (non passive ie w/fans) to pull some air though the case but the curved long ducts should kill the noise pretty well. I have a feeling you are going to say compressors get really hot, which is my impression from what I read.

I really like the scroll compressors but they are so big, very tall, hard to fit in a computer case. I wonder if you can lay them on the size since it is a scroll, shouldnt be to dependant on gravity but I shouldnt talk since I know next to nothing about them. I hear they are really quiet and efficient due to the design, so I am extreemly tempted.

I wish there was a small scroll compressor about 1/3hp - 1/4hp that would be no more then 10" tall :)

[jinu117]

Thanks I will do that tonight and post what I found.

*I have decided to step down to a 1/3hp or maybe even a 1/4 if the 1/4 is extreemly powerfull for the amount of noise it produces*

Trying to make a really quiet setup, since it will be 1. on 24/7 and 2. on when my girl is asleep in the same room :)

I am looking at the Lian Li PC-V2100 for the case, planning to add ALOT of vibration dampning material and soundproofing. I was going to make limited ducted vents (non passive ie w/fans) to pull some air though the case but the curved long ducts should kill the noise pretty well. I have a feeling you are going to say compressors get really hot, which is my impression from what I read.

I really like the scroll compressors but they are so big, very tall, hard to fit in a computer case. I wonder if you can lay them on the size since it is a scroll, shouldnt be to dependant on gravity but I shouldnt talk since I know next to nothing about them. I hear they are really quiet and efficient due to the design, so I am extreemly tempted.

I wish there was a small scroll compressor about 1/3hp - 1/4hp that would be no more then 10" tall :)

Danfoss NF9FX is such one. It will fit in V2000 fine. Now, I would suggest getting V2000 instead of V2100. Reasoning is that front air intake on V2100 is not as good as V2000. The slits at bottom isn't anywhere big enough really. Good luck :)

[epion2985]

Danfoss NF9FX is such one. It will fit in V2000 fine. Now, I would suggest getting V2000 instead of V2100. Reasoning is that front air intake on V2100 is not as good as V2000. The slits at bottom isn't anywhere big enough really. Good luck :)

Well I will be doing alot of modifications to the case anyway, mostly closing all the intakes, exausts and soundproofing. Will be adding 1 intake and 1 exaust both ducted with a vibration dampening ducts. :)

Danfoss NF9FX is a bit small, 1/5hp =/
1/3hp would be ideal. Although I must ask, I now this depends on alot of things, but generally with danfoss units how much more noise do 1/3hp units do vs 1/4-1/5?

Anyone know if there are any Scroll Compressors under 10" Height wise?

[jinu117]

Well I will be doing alot of modifications to the case anyway, mostly closing all the intakes, exausts and soundproofing. Will be adding 1 intake and 1 exaust both ducted with a vibration dampening ducts. :)

Danfoss NF9FX is a bit small, 1/5hp =/
1/3hp would be ideal. Although I must ask, I now this depends on alot of things, but generally with danfoss units how much more noise do 1/3hp units do vs 1/4-1/5?

Anyone know if there are any Scroll Compressors under 10" Height wise?

Danfoss Catalog clearly states NF9FX being 1/4+ HP compressor?

[epion2985]

Danfoss Catalog clearly states NF9FX being 1/4+ HP compressor?

indeed it does. I apologise i looked up some wrong information :)

1/4+ ? does that mean its between 1/4 and 1/3? or 1/4 - 2/4? whats the meanig of the + ?

[jinu117]

Bit over 1/4 so somewhere between 1/4 - 1/3 hp :P It is really good compressor being quiet. In fact, I've been searching for something better per noise and performance and having very hard time finding one...

[epion2985]

Bit over 1/4 so somewhere between 1/4 - 1/3 hp :P It is really good compressor being quiet. In fact, I've been searching for something better per noise and performance and having very hard time finding one...

trying to look at what they have but they webside is so buggy. At first I couldnt download/open their catalog, errors on their side. Now I cant even get to it... sad.

anyone know anything about their scroll compressors?

[the_new_guy]

danfoss site is bad try opening it in IE doesn't work well in firefox or safari

[jinu117]

Danfoss site usually is really good but last couple of days has been bad. Kind of glad I did download quite a few of their compressor spec (nty,nf,sc series mostly).
LMK if you need NF9FX, NF10FX, NF11FX, NTY9FK, SC10CLX, SC12CLX specifications.
PS) NTY10FK was my primiry candidate except I could get it from stateside for some unknown reason. Oh well... such is life.

[epion2985]

well the reason I wanted their catalogs is to see what is avalible. I dont know what I want yet lol. Well I do but I dont know if its made. So I want to go the other way, much more easier and realistic. Go look at what they do make and choose from it :)

anyone know anything about small scroll compressors?