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ARI STANDARD

FIRST of all, standard flow through an evapo it 2.4 gpm/ton
condenser is 3gpm/ton.,

also i dont this this is ur app but also have low flow rates and higher delta across the barroll.,

gpm=tons*20 divided by delta t

Qbtu/hr= 500*flow rate*delta t.,

do u know ft of head?

or does pumps have any info., this can get tricky

freeze,

make sure you have either a petes plug or a commom gauge on the suction and discharge side of your pump!
a petes plug is good!
you need to use the same gauge to check and set the head!

1" supply with 1" supply manifold and 1 1/4" return manifold. I'm having the contractor test the gpm sometime this coming week, to check the flow. I installed a gauge on the supply manifold for pressure during the setup.

what size piping do you have??

i do have a licensed contractor who will be doing the work that i need him too. I filled the glycol, and did some simple install, so i am fully capable of draining and refilling. After listening to the comments, that glycol is only hurting me, and i don't need it for a chill tank that is indoors, including the lines. the only reason i stopped the contractor in his tracks, was because i wasn't sure i could get the chiller to perform without spending thousands. Now that i have the help of this forum, i have found a few simple tips and procedures, that make me confident this unit (although i'm disappointed with the warranty and craftsmanship) can be fixed.

do yourself a favor and get some containers and try to save the water/glycol mixture so you don't have to purchase more. Can I ask a serious question why not just get a service company in just so you don’t waste any more of your time? I am sure you have other things you could do that will help make money instead of wasting it?

Not our guys but usually facility maint. I was always told your best friend is maint guys. They tend to screw with things they have no clue about some places have good guys and others not so good. In our area most equipment will be designed to have 30% glycol and the equipment is sized accordingly.

THANK YOU IM GONNA DRAIN THE SYSTEM MONDAY

You don't have enough steel to worry much about a rust inhibitor. Biologicals will take a while to form.
Put tap water in it and see if your numbers improve. If they do, flush it, add chemicals and distilled water. If not you have saved throwing more money at it, and you have to go another direction anyway.

I do not know where you guys all live?

wher I live and work, we must keep from freezing down til -20 deg F!

we mostly use polypropylene glycol
polyethylene glycol is not eco friendly enough!

ethylene is better because you do not have to add or mix as much!

anyways????

propylene has to be about 40% to be good down to -20

I believe the specific gravity is about 1.032 or so?

anyhow most guys just mix it 50 50!

I mix it about 60-40 water to start

OFCOURSE!!!!!!!!!!

I just test it with a refractometer anyhow so the original mix does not matter much??


just curious??

what area of math are your co-workers so bad at, thatthey can not get that right??

Originally Posted by HvAckid82

Just get a service company in, you are spinning your wheels and everyone on this site but have not offered any technical info. Has anyone tried to run the equipment without glycol? Are you sure you don't have more than 25% in the system. Been on jobs and guys say oh I only have 30% in the system and I find the system with 50% or more because they do not know basic mathematics.

i think this site was created to help EVERYONE, and most of your comments have been very helpful and appreciated. I was only asking a simple questions, if this was a proper way to test the btu of a chiller. I am gonna drain the system and run water, a rust inhibitor, and algae. . if i hadn't come on this site i probably would not have figured out i am wasting btu on glycol.THANKS TO EVERYONE WHO OFFERED HELP

Just get a service company in, you are spinning your wheels and everyone on this site but have not offered any technical info. Has anyone tried to run the equipment without glycol? Are you sure you don't have more than 25% in the system. Been on jobs and guys say oh I only have 30% in the system and I find the system with 50% or more because they do not know basic mathematics.

what rust inhibitor should i use?

I assume that many have already visted this site, but check out this web page and the video on it.
http://chillking.com/hydroponics

Same to Ya. Jost got back from parent's house, had christmas for the kids.

merry Christmas Southern!

just to add, in all my chiller's I have under contract, the only ones we run glycol in are Ice Plant chillers. Way different design and process, I just wanted to let you know no glycol, just treatment for algea and a rust inhibitor

I used pex and insulated it with the copper insulation. I fully understand this isn't my only problem but its a great start. Next will be checking my gpm and pump.

You don't say what kind of piping you used, copper,steel or pvc.
An open system will need a biocide to keep slime from forming. A common ingredient for that is glutaraldehyde. You may also need an inhibitor if you used steel pipe.
Just put clean water in it and see if your numbers improve. If they do you can go to distilled or reverse osmosis water and the chemicals.

Yes 25%glycol 75% water and it will never be below 40*. I wanna ditch the propyln glycol and use a chemical agent that will only minimally affect cooling or heat transfer. Any reccomendations on were and what 2 use?

Hey Jay!!!!!!!!!!!!!

Merry Christmas!!!!!!!!!!!!!1