This user guide provides instructions on how to operate the 3M 25 thermostat, including setting the time, programming the energy saving program, and changing the filter life reminder.. View and Download 3M FIltrete 22 operation manual online. Clock. FIltrete 22 thermostat pdf manual download.
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![[DIAGRAM] 3m Filtrete Thermostat Wiring Diagram](https://usermanual.wiki/Filtrete/Filtrete3M22InstallationManual119861.1103595934-User-Guide-Page-1.png "[DIAGRAM] 3m Filtrete Thermostat Wiring Diagram")
View and Download Filtrete 3M-22 operation manual online. 3M-22 thermostat. 3M-22 thermostat pdf manual download.. Operation Guide 3M-22 The 3M-22 programmable communicating thermostat operates via a simple keypad. To program or adjust your 3M-22, simply press your finger firmly on the keypad keys. The backlight will automatically light up. You can progam the 3M-22 with unique 7 days or use it like a 5-1-1 programmable with Saturday and Sunday different from all other days of the week. A program that fits.