Reznor 122845 Solenoid Valve

The Reznor 122845 Solenoid Valve is a critical replacement component designed for precise fuel flow control in Reznor gas-fired unit heaters. Engineered for compatibility with both natural gas and propane (LP) systems, this 25VAC gas valve maintains the pressure integrity required for safe burner ignition and sustained combustion. As a direct replacement part, it integrates seamlessly with existing manifold headers and pilot assemblies, ensuring the gas train operates within manufacturer specifications. This solenoid features a robust coil construction capable of withstanding the high-cycle demands of commercial HVACR environments. When troubleshooting unit heater ignition failure or erratic flame patterns, verifying the pull-in voltage and orifice seating of the Reznor 122845 is standard procedure. This HVAC replacement solenoid is essential for restoring the thermal efficiency and operational reliability of aging Reznor space heaters while maintaining strict compliance with gas safety standards.

• Dual Fuel Compatibility: Rated for both NAT and LP gas configurations, providing versatility for various field installations.
• Standard 25VAC Operation: Matches the secondary voltage of common HVAC transformers, simplifying electrical diagnostic and replacement workflows.
• OEM Precision: Guaranteed fitment for specific Reznor heater models, reducing the risk of manifold leaks or improper mounting.
• Industrial Build Quality: High-tolerance internal components prevent sticking and ensure positive shut-off during the heating cycle.

What are the symptoms of a failing Reznor 122845 solenoid?
Common indicators include the burner failing to ignite despite a call for heat, audible humming from the coil without gas flow, or intermittent flame loss during the run cycle. Always check for 24-27VAC at the terminals before condemning the valve.

Can this valve be used in high-altitude Reznor installations?
Yes, provided the manifold pressure is adjusted according to the specific Reznor unit’s high-altitude derate requirements and the correct orifice sizes are utilized.

Is the 122845 solenoid compatible with older Reznor F or B series units?
Compatibility depends on the specific gas train configuration; technicians should verify the part number against the original equipment data plate to ensure proper port sizing and electrical matching.

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.