Raypak 004817B Ignition Control

The Raypak 004817B Ignition Control is a critical replacement component engineered for natural gas-fired atmospheric and digital heaters. Primarily utilized in Raypak and Rheem Raytherm IID pool heaters, this 24V 60Hz electronic ignition module serves as a direct upgrade or replacement for legacy Honeywell S8600 and S86 ignition control platforms. Designed specifically for Intermittent Ignition Device (IID) systems, the 004817B manages the entire startup sequence, from providing the 24V transformer signal to the pilot operator and main gas valve, through the pilot flame sensing and rectification process. This natural gas ignition module ensures safe, consistent combustion by monitoring the millivolt signal and initiating a safety lockout if a flame is not detected during the trial-for-ignition period. In the field, technicians rely on the 004817B for its robust terminal connections and its broad compatibility across Raypak 206A, 266A, 336A, 406A, and early 53/55 series residential heaters. Replacing a faulty control with this genuine HVACR ignition part restores system efficiency and prevents common rapid-cycling or "no-heat" calls.

• Broad System Compatibility: Seamlessly integrates with Raypak R206A, R266A, R336A, R406A, and various Rheem Raytherm models.
• Honeywell Platform Integration: Drop-in replacement for systems utilizing Honeywell S8600 or S86 series ignition sequences.
• Enhanced Safety Logic: Features an inclusive safety lockout mechanism to prevent natural gas leakage if ignition is unsuccessful.
• Reliable IID Operation: Optimizes fuel consumption by only engaging the pilot during the heating call, eliminating the need for a standing pilot.
• Contractor-Grade Durability: Built to withstand high-cycle commercial and residential poolside environments.

Is the 004817B compatible with liquid propane (LP) heaters?
No, this specific part number is calibrated for natural gas ignition systems. For LP applications, ensure you verify the orifice and gas valve pressure settings before installation.

Why is my heater displaying a 'No Pilot Sense' error after installing this control?
Ensure the pilot electrode and burner ground wire are properly connected to the SENSE terminal. A weak flame rectification signal often points to a corroded sensor or improper ground rather than a module failure.

Does this module include the 24V transformer?
This is the electronic ignition module only. It requires a stable 24V source from the system transformer to power the logic board and signal the gas valve.

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.