View Full Version : CenTraVac rotary chiller question
04-01-2008, 08:47 PM
I have tons of experience in maintaining and servicing 2-75 ton commercial rooftops and split systems but have minimal exp. working on chillers. I have recently picked up a new account that has several rtu's but they also have a few Trane series R model RTHBCenTraVac rotary liquid chillers (130 ton). And to pick the account up, they want me to do maintenace/service on all the equipment. I am going to take a few classes to learn how to properly maintain these but am looking for a litlle insight prior to them.
My first question, is what is generaly involved with maintaining them. Also how long does a thorough maintenance take on one?
My second question is what is the going rate in the midwest for doing maintenance on these chilers?
Any advice or information would be greatly appreciated. If there are any sites to look and read up on, please list those.
04-01-2008, 09:19 PM
No offense Mark you sound very legite in your questions but I don't think there is going to be any one here that is going to be willing to give a direct answer to your questions..... What I would recommend though is to deffinetly get the Technical literature and do some reading up on these machines and keep in mind when taking on chiller work that there is so much more involved in these than just the chiller itself.... I.E. Controlls, pumps, Towers, Strainers, Balancing Valves and water treatment.....
With that said I commend you for wanting to learn and being willing to take on larger and more demanding work, but may I suggest maybe you sub out your chiller to a company that speacializes in chillers, and then educate yourself while learning from them that way you don't put your customer at risk of your learning curve, then at a later time when comfortable just quit subbing it out.
Remember these things are costly to replace a compressor on.
No offense intended either.
04-01-2008, 09:40 PM
I agree w/cw0682, these machines are quite a bit different than any 75 ton RTU. You should definetly get the literature on the units, however I'd recommend going to some kind of school or learning from someone who knows more about screw machines. Hopefully this doesn't come across as insulting to you, it's still an air conditioner, one that works a little different. Hope this can help.
04-01-2008, 09:58 PM
Before you do anything, you might want to go to the top of this screen in the "search" box type in "RTHB" and check out four years worth of discussions on this machine.
04-01-2008, 10:09 PM
No offense taken by any means. Any advice is good advice. I am taking a two day class at Trane on chillers in the next few weeks. I plan to do as much reading up on these chillers as humanly possible. Subbing the chiller work out is great advice and worth pursuing the idea of it.
I wasnt trying to get a crashing course on Trane chillers, I was just trying to get any info possible. Other than doing a search on that particular chiller, I figured this site would be the next best thing.
Thanks for everything guys. Keep the info coming!!!!!!!!!!!!
04-01-2008, 10:10 PM
While you're at it, you might want to search "23XL" which is Carriers version of essentially the same machine. Also check out the strings on York Screws. That should give you an idea of what you will be up against.
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