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Hello _ I just bought the NOMA model 52-2558-8 programmable thermostat so I have the booklet. I could email you a scanned copy of the book.:)

:confused: I just replaced an older Honeywell T87F (round and non-programmable) thermostat with a NOMA Programmable 52-2558-8.

The Honeywell had the following wires (connections):
R
RH
G
Y
W...