Robertshaw 780-002 Universal Module

The Robertshaw 780-002 is a field-proven 24V intermittent pilot ignition module designed for high-reliability lockout performance in residential and commercial gas-fired systems. This intermittent pilot lockout universal module serves as a versatile Uni-Kit replacement for widespread Honeywell S8600 and Johnson Controls ignition systems, streamlining truck stock for HVAC technicians. Engineered for flexibility, it supports both local sense (single rod) and remote sense (dual rod) flame setups, with the solid-state flame sensing circuit automatically detecting the probe configuration upon installation. During a call for heat, the universal ignition control initiates a 3-4 spark per second rate and offers three ignition attempts. If the 0.7 µA DC flame signal is not established within the 60-second trial period, the module enters a safety 60-second lockout, requiring a thermostat reset to prevent unburned gas accumulation. With a maximum load current of 1.5 Amps and an ambient temperature rating up to 175°F, this Robertshaw ignition control ensures stable flame rectification and automatic recycling in demanding environments.

Key Benefits

• Universal Compatibility: Replaces numerous intermittent pilot modules from Honeywell, Johnson Controls, and Penn, reducing inventory requirements.
• Dual-Rod Flexibility: Features automatic sensing logic that seamlessly adapts to local or remote flame sensing without manual configuration.
• Enhanced Safety: Built-in safety lockout timing shuts off the main gas supply if pilot ignition fails after three distinct attempts.
• Durability: Solid-state flame rectification circuitry is designed to operate reliably in high-humidity (95% non-condensing) and high-heat conditions.

Common Questions

How do I reset this module after it enters lockout?
When the Robertshaw 780-002 fails to sense a flame after three 60-second trials, it enters a lockout state. Technicians must cycle the thermostat to "Off" and back to "Heat" or briefly interrupt the 24VAC power to reset the internal logic.

Does this kit include a vent damper adapter?
Yes, this 780 series Uni-Kit is typically supplied with a vent damper adapter assembly to ensure backward compatibility with older atmospheric burner configurations requiring damper synchronization.

Can I use this for both LP and Natural Gas systems?
The Robertshaw 780-002 module is compatible with both gas types, provided the gas valve and pilot orifice are properly sized and calibrated for the specific fuel source.

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.