Resideo ST9120U1011 Fan Timer

Electronic Fan Timer, 18-30Vac, Integrate Control of all Combustion Blower and Circulating Fan Operations in a Gas Warm Air Appliance, Adjustable 30 Second or 60 Second Heat Fan On Delay, Adjustable 60 Second, 120 Second, 150 Second or 180 Second Heat Fan Off Delay, Adjustable 4 Second or 30 Second Cool Fan On Delay, Adjustable 30 Second or 60 Second Cool Fan Off Delay, -40-175 Degree Ambient Temperature Range

ST9120U1011 is the direct cross version of 1014460, S1-4116000, ST9141A1002, ST9120C2010, 406650, ST9120C2028

Resideo ST9120U1011 Fan Timer – Universal Electronic Fan Timer for Gas Warm Air Appliances

The Resideo ST9120U1011 Fan Timer is a universal, high-performance electronic fan timer designed to deliver reliable and efficient control for gas warm air appliances. Engineered to integrate all combustion blower and circulating fan functions, this advanced control board replaces over 41 existing Honeywell/Resideo fan timer models, making it the ideal universal replacement solution for HVAC professionals and homeowners alike.

Built for flexibility and durability, the ST9120U1011 features field-adjustable On/Off delay settings, allowing you to fine-tune heat and cooling cycles to meet specific system requirements. It offers adjustable heat fan on delay (30 or 60 seconds), heat fan off delay (60, 120, 150, or 180 seconds), as well as cool fan on/off delay options. The wide -40°F to 175°F ambient temperature range ensures dependable operation in demanding environments.

This upgraded universal platform includes a replaceable fuse, DIP switch-selectable delay settings, a diagnostic LED, and continuous EAC and HUM terminal connections, saving time during installation while maximizing system protection and performance. Designed for seamless integration, it monitors thermostat demands for heat, cool, and fan modes, operates the induced draft blower motor, controls up to two fan speeds, monitors limit switch strings, and energizes the ignition control.

Key Features & Benefits

• Universal Compatibility – Replaces more than 41 Honeywell/Resideo fan timer models.

• Field-Adjustable On/Off Delay Settings – Customize heat and cool fan delays for optimal comfort and efficiency.

• Comprehensive System Control – Monitors thermostat demands, controls combustion blower, circulator fan (up to 2 speeds), limit switches, and ignition control.

• Enhanced Reliability – Engineered for long-lasting performance in a wide range of conditions.

• Advanced Platform Design – Includes a replaceable fuse, DIP switch configurations, diagnostic LED, and continuous EAC/HUM terminals.

• Wide Temperature Range – Performs reliably from -40°F to 175°F.

• Time-Saving Installation – Universal design and intuitive features reduce service time and cost.

Ideal For

• Professional HVAC installations

• Upgrades and repairs of gas warm air appliances

• Universal replacement of outdated or unavailable fan timer boards