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UPDATE to my question -
Definitely need a different model and the 2 suggested by Honeywell both use AA batteries and back light only stays on for 5 seconds. This is going in a home with an...

I purchased a honeywell programmable thermostat to replace a vintage manual one. After trying to match the W1, W2, G, Rc, Rh and Y1 from the old thermostat to the new one with codes: O/B, Y, R, G...