ST9120U1011 Universal Electronic Fan Timer Control Board for ST9101-ST9160

ST9120U1011 Universal Electronic Fan Timer Control Board for ST9101-ST9160

Key features

• UNIVERSAL REPLACEMENT COMPATIBILITY: This versatile electronic fan timer board replaces over 40 existing models, including all ST9101, ST9120, ST9141, and ST9160 series boards. It serves as a full-fit replacement solution for Honeywell HVAC most fan timer control boards, avoid model-matching troubles for various gas warm-air appliance systems.
• ADJUSTABLE FAN ON & OFF DELAYS: The ST9120U1011 control board features field-adjustable timing settings for improved HVAC system performance. Heat fan ON delay can be set to 30 or 60 seconds, while heat fan OFF delay can be adjusted to 60, 120, 150 or 180 seconds. Cool fan ON and OFF delays are also adjustable to meet different system requirements.
• INTEGRATED SYSTEM CONTROL: As a core control component for gas warm-air appliances, this ST9120U1011 circuit board intelligently manages full operations of combustion blower and 2-speed circulating fan. It accurately monitors thermostat heat, cool and fan demands, tracks limit switch strings, and energizes ignition control, ensuring coordinated, stable and efficient operation of the entire HVAC system.
• RELIABLE PERFORMANCE & BUILT-IN PROTECTION: The ST9120U1011 universal electronic fan timer control board operates on 18-30 VAC, 50/60 Hz and is designed for use in ambient temperatures from -40°F to +175°F. Features a replaceable 5A fuse for added electrical protection, diagnostic LED for troubleshooting, and selectable delay settings for dependable HVAC operation.
• EASY INSTALLATION & SERVICE: Designed with a central appliance wiring point to simplify installation, replacement and servicing. Includes interface harnesses and an instruction sheet with cross-reference and wiring information to help make conversion from compatible fan timer boards more convenient.

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