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View Full Version : How to replace White Rodgers 1F89-11 with LUX TX1500?


rdrrnorton
Nov 26, 2010, 11:02 AM
I have a Ruud Heat Pump. I'm not sure of the O/B wire on the White Rodgers. Which terminal do I connect the blue wire to, on the Lux 1500 thermostate?