Robertshaw 780-746 Universal Module

Integrating a Robertshaw 780-746 Universal Lockout Module into your service routine is a tactical move for reducing truck stock. This intermittent pilot ignition control is engineered for high-performance flame rectification, featuring solid-state logic for precise automatic sequencing. Designed for 24V AC systems, it provides a 45-second prepurge cycle to ensure combustion chambers are clear before ignition trial. The unit handles a total current load of 1.5 Amps and operates within a wide temperature range of -40°F to 175°F. Contractors value the versatility of this direct spark ignition module, as it supports both local (single rod) and remote (dual rod) flame sensing. During the heating cycle, the module maintains a synchronous monitoring frequency, instantly closing the main valve if the flame sensor current drops below 0.7 microamps. This universal ignition control features three 60-second valve trials and a 100% lockout safety protocol with a 5-minute purge cycle, making it a reliable drop-in replacement for 780-736 (SP735P) and diverse competitor models.

• Universal Compatibility: Replaces common single and dual-rod intermittent pilot controls, significantly reducing the need for specific OEM inventory.
• Integrated Safety Logic: Features 100% safety lockout timing and a 5-minute purge cycle to prevent gas buildup during failed ignition attempts.
• Durable Construction: Molded-in terminal barriers and 95% relative humidity resistance ensure longevity in demanding HVAC mechanical rooms.
• Simplified Installation: Comes with clear instructions and mounting screws for positive grounding, facilitating faster service calls.

• Does this module support vent dampers? Yes, it is compatible with existing vent damper harnesses when using the appropriate adapter or plug.
• How do you reset the lockout? If the 780-746 enters a 100% lockout state, it must be manually reset by cycling the thermostat or power supply.
• Can I use this for both natural gas and LP? This Robertshaw ignition module is designed to work with both fuel types when paired with the appropriate gas valves.

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.