Varidigm 364810 Modulating Furnace Board VF3-1181

Varidigm 364810 Modulating Furnace Control Board | VF3-1181 SCD-1097 | York Coleman Luxaire | Tested Condition: Used – Tested & Fully Functional Availability: Ready for pickup / Fast Response Key Specifications Brand: Varidigm OEM Applications: York Johnson Controls Luxaire Coleman Part Numbers: 364810 VF3-1181 SCD-1097 Board Revision: 97-1149B Rev C Control Type: Integrated Furnace Control (IFC) Communicating Furnace Control Modulating Gas Furnace Controller Variable-Speed Blower Control Application: High-efficiency residential communicating gas furnaces with modulating heat and variable-speed blower motors. Thermostat Terminal Connections 11-Screw Low Voltage Terminal Strip Terminal Function C 24V Common G Indoor Fan R 24V Power W Heating Y/Y2 Second Stage Cooling Y1 First Stage Cooling O Heat Pump Reversing Valve DHUM Dehumidification HI COMP High Compressor Output LO COMP Low Compressor Output 120V Line Voltage Connections Humidifier HOT NEUTRAL Draft Inducer HOT NEUTRAL Hot Surface Igniter HOT NEUTRAL Sensor & Communication Connections Sensors Internal Temperature Sensor (J3) External Pressure Sensor A-Coil Temperature Sensor Primary Limit Rollout Limit Gas Control 24VAC HOT Modulating Gas Valve Gas Valve Return Communication Dual RS485 Communication Ports Four-wire communicating bus: A B R GND Compatible with communicating thermostats and communicating HVAC systems. Harness Connectors J3 – Internal Temperature Sensor J4 – Primary Limit / Rollout Limit J7 – Multi-pin Control Connector 6-Pin Gas Valve Connector External Pressure Sensor Connector A-Coil Temperature Sensor Connector ID Plug (J11) Configuration Connector Major Components Aluminum Heat Sink Large full-length aluminum heat sink supporting multiple power devices for modulating outputs and variable-speed control. Relays (6) ZETTLER AZ942-1CH-24DE Coil: 24VDC Contacts: 10A @ 277VAC 5A @ 30VDC Optoisolators Four MOC3023 Optoisolators Provide isolation between control electronics and high-voltage switching circuits. Power Section Toroidal Inductor Yellow Switching Transformer Blue Electrolytic Capacitors High-power semiconductor drivers Power Resistor YAGEO 10W 240Ω Fuse 3-Amp Purple Automotive Blade Fuse ⚙️ Configuration ID Plug (J11) Factory configuration jumper used to identify furnace model and operating parameters. Compatibility Direct replacement for: Varidigm 364810 VF3-1181 SCD-1097 Commonly installed in: York Modulating Furnaces Johnson Controls Furnaces Luxaire Furnaces Coleman Furnaces Used in systems featuring: Variable-Speed ECM Blower Motors Modulating Gas Valves Communicating Thermostats RS485 Digital Communication High-Efficiency Condensing Furnaces ⚠️ Always verify before purchasing: Part number Board revision Connector locations Furnace model number Communicating system compatibility Why Buy This Board? ✔️ Genuine OEM Varidigm control board ✔️ Supports communicating HVAC systems ✔️ Designed for modulating gas furnaces ✔️ Variable-speed ECM blower compatible ✔️ Fully tested and ready to install ✔️ Excellent replacement for expensive OEM boards Pickup: Toronto / GTA