Rheem thermostat to a nest


Old 08-02-14, 03:30 PM
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Rheem thermostat to a nest

I'm trying to convert an old rheem thermostat to a nest. Rheem wires and Connections are. :
X. Brown
W2 white
B. Blue
G. Green
R. Red
Y. Yellow

I'm confused where the x. W2 and B connect on nest.
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Old 08-02-14, 03:47 PM
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Brown won't be used, the white wire will go on W and blue goes on C.
Old 08-02-14, 07:26 PM
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Rheem uses the B terminal to control the reversing valve in heat pumps (energize the reversing valve to heat).

Post the model number of the old stat.

I'd say that
brown = C
Blue = O/B
W2 = Aux
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