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WEIL MCLAIN CGT NEED HELP

shawn_5
shawn_5 Member Posts: 52
http://www.taco-hvac.com/uploads/FileLibrary/SwitchingRelay.pdf
How do I wire this control to a wm cgt tankless gas boiler where does the tt wires on the boiler go to is it ther isolated end switch or is it the zc and zr.I hooked it to zc and zr got hot water no heat then switched to isolated end switch and got heat but no hot water.

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