I have a boiler with 2 wires (unlabeled wires "cry") I found where they go to boiler and they are labeled T and T. Which sucks when you are trying to install a new programmable thermostat in the place of the old mercury one. Please help.
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I have a boiler with 2 wires (unlabeled wires "cry") I found where they go to boiler and they are labeled T and T. Which sucks when you are trying to install a new programmable thermostat in the place of the old mercury one. Please help.
Hook one to r and one to w
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