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Water treatment for copper-fin snowmelt system?
RBI, 300k. New HX 2 years ago. When I did the HX I set the prop glycol to -10*F. Two years later and a new Tek 430 control, the HX sounds like it has a jet engine firing up inside it!
I'm told by my rep the corrosion inhibitors have broken down and a film has formed inside the tubes so you have steam at the tube inner surface and 160* water in the middle. He said he had great experience just adding inhibitor / conditioner with chelate (sp?) but also sells a Rohmar cleaner that will remove this film.
Shoud I use the cleaner to be safe or will conditioner with chelate do the job?
Target temp is 140 but the 430 runs the temp to 180 on mild days with one zone calling because no buffer and it short cycles terribly by design. All warm floors and the driveway plus indirect.
Working on steam and hot-water systems isn't rocket science....it's actually much harder.
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