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I didnt not mean change out (switch) your HFC for a natural refrigerant in an existing system. I just meant we are going to be moving to the natural refrigerant in new and remodel systems. And that...

Just switch to CO2, ammona or Propane and you wont have to worry about R-22 or any other HFC:angel:

Beverage grade should NEVER be used with any CO2 refrigeration system!! There is to much moisture in a beverage grade CO2. You should use Coleman Grade or Instrument Grade, the idea grade should be...

Let me know and ill met ya there if i can

They are going to be two CO2 systems in conyers, both are going to be CO2 cascade

I was scrolling though and found this thread. So I thought I would add my two cents. So here is my readers digest version. THIS IS ONLY AN OVERVIEW

First there are 3 type of systems
1. CO2...

FYI
www.supermarketnews.com/technology/california_refrigeration_1115/

There are currently ~50 installation using CO2 as a refrigerant in US and Canada most of these are either CO2 as a low temperature secondary fluid, there are also a growing number of low temperature...

Can I email you and see what we can do??

As FSE said, in Supermarkets we use Coleman Grade CO2, this means that impurities and moisture have been fliter out and dried. CO2 like all refrigerants must be dry, any moisture inside the system...

CO2 can come from several places. There are some parts of the world where it seeps out of the ground once in a while, but kind of unusual. Mostly it’s obtained as a “waste gas” from other...

Why???

Anyone intrested in some glycol or CO2 training there is going to be a trainng program in Des Moines Iowa
August 24th glycol secondary
August 25th CO2 as both a secondary and cascade system ...

For your reading pleasure.:deadhorse

Either LA or Sacremento. in September I think

Trying to put somthing to togather in your hood, this summer or maybe in the fall. Hope you can make it.

Dow,

See first post for length or training, but CO2 is one day. I maybe in Madison WI in April (wont know unitl next week) the cost is $249.00 with a 20% discount for HVAC-talk members. I would...

Amen!!!

Smilies paper work is at GF, should have your badge in couple of weeks

Next week is the training in Atlanta I hope some of you will be there.

I hope this Calfornia EPA

I feel your pain and you bring up good points, case controllers are gone, but rack controller (i thought they all sucked when I first saw one IPC) are here to stay. Gylcol systems have been used in...

Bryan1.... If I send you some articles can you post them for me??

Congrats on the Hockey game. ;)

[QUOTE=dirtyboy103us;6110212]lets start by saying this stuff about supermarkets going green is not going to happen and the reason is safety and labor cost and the willingness of contractors to invest...

Bryan

Preach it brother you have hit the nail on the head. Yes CO2 is a greenhouse gas but it is the best alternative to what we have now and review what Bryan has witten.

Look up the history...

They will have no chose but to change, the problem with the goverment is they take a techinical problem and make it political. :oops:

Flange,
You make a couple of good points, oil speration with ammonia, and leaks.

These are things that can be engineered,I envision a system that would have very small charge of ammonia on the...