Those links are very interesting and very cool. Thanks
Type: Posts; User: eng&tech
Those links are very interesting and very cool. Thanks
Hillphoenix is having a training class on CO2 Booster system on December 4th in Conyers GA, if you interested let me know on this post. CO2 booster systems are what some are calling transcritical...
Why does POE clean the inside of my pipe. Back in the day mineral oil would leave the oxidation on the pipe walls, I've heard that POE was a type of solvent in the aerospace industry?? Anyone??
What is the current cost of 449a?? What about Honeywell's 448 is anyone using that?? And what is the cost??
Hillphoenix has training on all 3 types of supermarket CO2 systems (Secondary, Cascade and Booster systems). The operating pressure range differs based on the type of CO2 system you are using.
:pop:If so I would love to hear any feedback. Both good and bad.
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...
Follow the factory gulid line Bryan has listed above, or the ASHRAE handbook (the annealed table). And make sure you take into consideration which refrigeratant you are using. In the 1950 we used...
I agree there are some hurdles, when we talk about ammonia. But I think they can be overcome. For one the ammioia portion would be factory built and welded. The contractor would install copper or ABS...
AMEN Prech it Brother!!!
Thermo-electric cooling - Peltier Effect- Google this for more info
You heat one side of a electircal plate while cooling the other side. If you need to defrost or simple want to switch between...
I have to agree with FSE, I think we use a small amount of Ammiona on the roof in a machnice house as the primary DX refrigerant, cooling etiher propalenye glycol for medium temp or CO2 can be used...
Here we go again. I keep reading threads about CO2 and all of the mis-information out there on the subject of CO2. This is not a new refrigerant. If you use it as a low temperature secondary fluid...
Thanks Ice
I'd ask my 13year old but he already thinks I'm stupid:rolleyes:
Few2many,
Check out the Hill Phoenix training we will cover this type of equipment. We will be in Tempe on Febuary 16-19 see the thread "Upcoming Training" :)
Mercedes Benz was looking at it and with the flambility issues and cost, they and BMW have decided to go with C02 in there autos. Check out
www.R744.com. There are a couple of articales on this...
In hotel meeting room.
The Buttes a Merriott Hotel
2000 Westcourt Way 200
Tempe AZ.
602.431.2385
sounds great call me and we get pete to go with us.
sounds great call me and we get pete to go with us.
FSE,
good to here from you i'll tell pete you said hey. Sound like your doing well!!
I thought Sanyo was supplying coke with all there CO2 systems. Are these
systems all transcritical...
Hill Phoenix is having an upcoming Regional Training Program in Phoenix AZ. This class is geared to the service tech and the installers, our goal is to teach in an open format all things secondary...
CO2 is here to stay!!!!
1. The CO2 that we are using in refirgeration is a byproduct of differant manufactoring processes. It is not the CO2 the hippies are after, that is the emmison of CO2 (cars,...
although it true we are using glycol syetems to reduce the total amount of HFC and to become more EPA complant, If you talk to the customer that use medium temp gylcol system you see more and more...
I put it in the freezer and have bryan l whack it like he hitting it over the fence.
Bryan l Has the leak been fixed?? :oops:
Look forward to meeting you in St. Louis
Everyone one of us complain we can't get the training we need on new system anymore, well Hill Phoenix is having an upcoming Regional Training Program at the St. Louis MO Courtyard at West Port. This...