Robertshaw 780-705 Ignition Kit

The Robertshaw 780-705 is a universal Non Lockout Modern Ignition Kit designed for direct spark ignition (DSI) systems. This intermittent pilot ignition module provides high-voltage capacitor discharge spark for reliable burner lighting in residential and commercial heating equipment. Engineered as a universal ignition replacement, it manages the pilot gas valve and ignition sequence, ensuring stable flame rectification. The unit operates on a 24V AC ignition control circuit, making it compatible with a wide range of OEM applications. The kit includes the necessary wiring harnesses and mounting hardware to facilitate a field retrofit. Technicians should verify the microamp flame signal and ensuring proper grounding to maintain consistent burner sequencing. This module does not feature a lockout timer, meaning it will continue the trial for ignition until a flame is sensed or the system is manually powered down, making it suitable for specific older furnace and boiler configurations requiring non-lockout logic.

• Universal Application: Replaces multiple obsolete and current DSI modules to reduce truck stock requirements.
• Intermittent Pilot Control: Efficiently manages pilot gas and spark generation for reliable ignition cycles.
• Field-Proven Housing: Designed with a durable footprint for easy installation in tight furnace vestibules.
• High-Voltage Discharge: Provides a consistent spark to ensure rapid lighting of the pilot burner assembly.

Common Technical Questions

What is the difference between a lockout and non-lockout module?
A non-lockout module like the 780-705 will continue the spark and pilot gas flow as long as there is a call for heat, whereas lockout modules shut down after a set number of failed attempts for safety.

Can this replace a standing pilot system?
No, this is designed specifically for intermittent pilot systems and requires a compatible gas valve and pilot assembly to function correctly.

Does this kit include the spark cable?
Yes, the 780-705 kit typically includes the necessary wiring adapters and high-voltage leads required for a standard installation.

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.