Large piece of refrigeration equipment. It uses r507 which is incredibly expensive. It always leaks. How do you stop the leaks?
How do you stop leaks?
Kieran
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I guess what I am trying to ask is if the piece of equipment is just trash or is there a real method of containing leaks. I put 5 100lb cylinders in it today and didn't even make a dent. Similar to this unit:http://www.genemco.com/catalog/pdf/KBMW156Cfrickcomp.pdf
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539 Posts
Thier is no method of containing leaks. You have a screw chiller, water Barrell. And chassis. At 100 pounds per day, your biggest leaks will be easy to find.spends some time with it, hire a good tech. If your going to scrap it, let me know and I'll send you my address.
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Sent from my SM-G935T using Tapatalk
What most chiller techs do is calculate the amount of loss over time, then connect a tank with a set of gauges, and crack the suction valve on the gauges to match the leak rate, sometimes you have to connect a few tanks together, if it leaks faster than one tank can take care of. Of course you'll have to return every few days or so to change tanks. Don't forget to contact the EPA to report the excessive refrigerant use, and the attorney general's office to report the manufacturer for building equipment that costs so much money to maintain!
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539 Posts
I was reading that, thinking what the h3ll? Got to the end. Funny.
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Sent from my SM-G935T using Tapatalk
That is a lot of refrigerant. Have someone track it down and repair the leaks if possible. If you try to add something to the system to plug the leak then you will damage the whole system. Good luck. Let us know what you find.
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Sent from my SAMSUNG-SM-G891A using Tapatalk
In looking at your profile, i see you are a residential hvac tech, is that correct? If that is the case, you might want to call a commercial hvac tech. Back to your "how to find a leak" question tho. Finding leaks is a process of elimination, coupled with experience and thought knowledge. This Frick Chiller, driven by the Cat Motor is the first place to look at. Both the chiller and motor have rotating crankshaft seals. This is the first area to eliminate, and not with a multi thousand dollar electronic leak detector, but good old fashion soap solution, designed to find leaks, such as "Snoop". Pressurize the system and saturate both seal plates, and eliminate them as the source of the leak first. If that passes the bubble test, move on to any and all gasket components that have refrigerant within them. Remember, the first sign of a leak is oil residue, so go over it with a fine tooth comb. All service valves, solenoid connections, oil filter housing, and gasket, should be checked as well. Now, some times these chillers will leak internally, and the refrigerant will mix with the chilled water supply, and travel out to the air handlers in the system. Take a chilled water sample and have it anaiyzed for refrigerant content. If all of that is good, my advice is to have it checked with a flouresent dye solution, and black light leak finder gun. My best guess is your loosing this amount of gas thru the chilled water evaporator tho.
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2,840 Posts
You put 500 pounds of refrigerant in it and you don't have a clue where the leak is? You should have a cloud around you and be slipping on oil. Seal the hole, seal the gap. Your leak rate us too excessive to continue as you are. Get someone out there to find it and seal it. If you want to know where it is make the area silent you should hear it or slip in its oil. Go from one end to the other you'll find it.
I like to put a solenoid in the charging line hooked to the refer cylinder, and control it with a low pressure switch. :grin2:
Ok, I'm not at all trying to be rude here....BUT....you guys all realize that the Poster of this question is asking how to repair a PROCESS CHILLER SKID....and doesn't seem to understand how to find and fix a refrigerant leak.
This skid could cost a half million dollars or more. Not to mention loss of process revenue if it ends up with irreparable damage, caused by an incompetent service technician following advice from an internet Hvac forum.
This guy needs to call a competent service professional.....plain and simple.
This skid could cost a half million dollars or more. Not to mention loss of process revenue if it ends up with irreparable damage, caused by an incompetent service technician following advice from an internet Hvac forum.
This guy needs to call a competent service professional.....plain and simple.
boo hoo. an idiot asks a question and gets answers from pros. if he cant process and implement the answers then that's on the idiot.
by idiot i mean he cant process information given in the EPA refrigerant license test. that system should have been reported and shut down ages ago. additionally, he and other techs have been played for fools by the equipment owner. if it's so freaking important it should have been fixed properly.
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