1F90 Comfort-Set

1F90 Comfort-Set

How do I find the Model (type) number of my 1F90 Comfort-Set II Series?

Remove the front cover from the wall plate.

TYPE or MODEL Number is located on inside of front cover.

or on wall plate


Links to additional information for 1F90 Series thermostats: 

Quick programming guides for 1F90 digital programmable thermostats:

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