ST9120U1011/U Universal Electronic Fan Timer Replaces

Part Number: ST9120U1011/U Brand: Resideo Technologies Inc

Universal Electronic Fan Timer

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Does not ship to Virginia, United States

Universal electronic fan timer replaces ST9120, ST9101, ST9141, and ST9160 models installed in gas warm air furnaces.

Includes instructions and special wire harnesses for easy replacement.
  • Replaces 40+ Existing Electronic Fan Timers
  • Instruction Sheet Supplies Full Cross Reference and Wiring Guide
  • Interface Harnesses for Simple Conversion
  • Integrates Control of All Combustion Blower and Circulating Fan Operations in Gas Warm-air Appliance
  • Replaceable Fuse
  • Dip Switch Selectable Heat and Cool Delay On and Off Times
  • LED Lights for Easy Diagnostics
  • Electronic Air Cleaner And Humidifier Terminal Connections
  • Continuous Low Speed Indoor Air Circulation


Electrical Ratings

  • 18 to 30 Vac


  • 50 Hz; 60 Hz

Approvals, Underwriters Laboratories Inc.

  • Listed: Report MP466

Approvals, Canadian Standards Association

  • Certified: File No. LR95329-17

Tradeline Value

  • Universal Tradeline

Ambient Temperature Range

  • -40 °C to +79 °C
  • -40 °F to +175 °F


  • All ST9101's, all ST9120's, all ST9141's, and all ST9160's

Heat Fan On Delay

  • Adj. 30, 60 sec (set at 30 sec)
  • Adj. 60, 120, 150, 180 sec (set at 120 sec)

Cool Fan On Delay

  • Adj. 4, 30 sec (set at 4 sec)
  • Adj. 30, 60 sec (set at 30 sec)

  • Integrates Control of Combustion Blower and Circulating Fan Operations for a Gas Warm Air Appliance

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