Resideo S8701A1034 Ignition Module

Resideo S8701A1034 is a direct spark ignition (DSI) module featuring an 11-second trial-for-ignition and a 30-second pre-purge cycle, designed for gas-fired HVAC equipment including furnaces, boilers, and rooftop units. It manages burner startup by initiating a pre-purge sequence to clear the combustion chamber before ignition, then provides spark ignition and flame verification for safe operation.

This ignition control is commonly used as a replacement for faulty or unreliable ignition boards in residential and light commercial heating systems. The 30-second pre-purge improves safety by removing any residual gas before ignition, while the 11-second ignition trial ensures controlled burner light-off. If flame is not proven within the ignition window, the system will shut down to prevent unsafe operation.

The module integrates with standard 24V control circuits and works with compatible gas valves and flame sensing systems. Before installation, verify wiring, voltage, and system compatibility.

Key Benefits:

• 30-second pre-purge for improved combustion safety
• 11-second trial-for-ignition for controlled startup
• Reliable direct spark ignition for gas heating systems
• Compatible with standard 24V HVAC control circuits

Common Questions:

• Is this compatible with my furnace or boiler system?
• What does the pre-purge cycle do?
• Can this replace my existing ignition module?

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

S8701A1034 is the cross of S87J1026