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close the compressors....

MaSell, you have been paid off right? *hint*hint*

Have you ran acid check on compressor oil at start?

Alcohol will do fine.
Better way would be using the artic silver companies cleaning solution. One with citrus oil and the other to get rid of that... If you want to go bit more into "cleaning" I...

LOL, let's try A LOT longer :) Imagine the volume inside that need to be evac'd vs. single stage unit... Typically, you run it overnight on heat pumps... or just go to other jobsite and comeback,...

I went out to get prius and gave up. In place I live (so. cal where there are a lot of long distance commuter), demand is incredibly high. With lot of people driving 80-120 miles a day in traffic,...

Got pics? :) I presume the condenser is much larger than what we use for SS in general. I would keep it if noise doesn't bother you.

Good god. Sounds like approximately 1/3 HP compressor. I presume you will be using condenser and fan setup that is already in dehumidifier. If such is case, I wouldn't be surprised to see -20 to...

NF series of compressors are very well made :) Hence the favoritism. Honestly, I would be more prone for NF9FX and NF10FX than NF11FX. Reason for usage is how quiet the compressor is (NF11FX kills...

Actually I meant both Full and locked.
Full is operational design of compressor that can handle continuously, Locked is when bad thing happens... :) Basically it better not draw LRA under any...

Higher pressure gas tend to give you colder temperature... I mean, there are so many refrigerants out there it's hard to tell you what... :)
The spec of 100PSI lowside and 450PSI highside is...

Considering it is R12 with 10RLA and 1.3FLA, I am more prone to think it is around 1/6 hp-1/8 hp. For SS with higher pressure gas (just about all refrigerant even R134a...) would be hard to use on...

Americold compressor. They went out of business decade ago.

Noise, efficiency, and power draw from compressor are few of the cons (and size!)
if that is what you have and want to toy around for benching, etc I don't see anything wrong with the idea.
As for...

Looking sweet... :)
I am scared to think how many hours are put on it :)

Sometimes, those foam gets old and evap can sink in. My suggestion is to cut piece of cardbox in shape of evap (circle), cut it in half and put it as spacer behind evaporator between foam. That...

Uhmmm.... 24x7.... I don't know man.... lol That does sound excessive sizing for 24x7. 1/2hp no matter how quiet is much louder than some 1/4 or 1/3. I was going to say just get whole condensing...

Definitely TXV for that kind of mass flow (from my perspective). I believe what you are looking for is low temp 1/2 to 3/4 ton TXV. If it was me, I would go with Danfoss and try 2 different...

Very good from what i've seen so far. Copeland has become my choice of compressor for walk in chiller, etc. I think they became more efficient and quieter in recent years. On the rooftop full of...

Is there specs for it and usage? What temperature is it being used for and what it is for?

Compressor pricing is typically in that range in commercial work. I wouldn't be surprised. Typical 1/2 hp (even 1/3hp) comes with rotolock on commercial condensing unit/compressor. You don't...

One thing you can do, If I am not wrong is, I put K-type probe in it... :) Grab cheap K-type thermometer from Harborfreight, etc if you want :)

lower density.... to a point. It's like u curve based on thickness and the temperature differential with density coefficient shifting graph on most insulation material... (doesn't really make senes...

Tune the unit based on R134a or warmer gas with larger capacity...

Something I am fooling around with...
Transparent Enclosure and probably will put some LED (haven't decided where would be best).
Thing is, this is 2 part with bottom tube lathed and top laser cut...