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Can you give me model on both thermostats?
OK If you had this
White to W
Another white to Y
Red to Rh
Green to G
you will as follows:
White that went to W will go to W
Other white that went to Y will go to Y
Red that went to RH will go to R and leave factory jumper to RC
Green that went to G will go to G.
Not sure what you are referring to about the new thermostat is connection show G is white Y is black W is black and R is black also have a jumper in R and RC