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Outdoor reset on old hydronic system (3 Posts)
Xray February 15, 2013 @ 9:57 AM
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Outdoor reset on old hydronic system
I am looking to improve the comfort & efficiency of an old radiator system with a condensing boiler. I would like to try full outdoor temperature reset, possibly with continuous circulation. Can anyone recommend a controls setup?

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pipeking February 15, 2013 @ 10:08 AM
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what
controls would u use for constant circulation? your odr will prolly have to b put on a 4way mixer,huh?

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Chris February 15, 2013 @ 12:09 PM
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Condensing Boiler
Such as a Viessmann Vitodens 200 on board boiler control is ready to do exactly what you want....

http://www.viessmann.ca/etc/medialib/internet-ca/pdfs/wall-mount.Par.26074.File.tmp/Vitodens_200-WB2B_tdm.pdf
"The bitter taste of a poor installation remains much longer than the sweet taste of the lowest price."

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