Reznor 113216 Switch

The Reznor 113216 Blocked Vent Switch is a critical safety component designed for Reznor gas-fired unit heaters, including industrial and commercial series. In the field, this limit switch serves as a primary safeguard by monitoring for restricted airflow or draft obstructions within the venting system. When a vent blockage is detected, the 113216 switch immediately interrupts the burner's combustion sequence, preventing the dangerous accumulation of combustion gases and potential carbon monoxide buildup inside the structure. This OEM Reznor safety switch is engineered with a rugged construction and a 225D temperature rating to withstand the high-temperature environments typical of industrial HVAC applications.

For service technicians, the Reznor 113216 provides reliable vent safety monitoring, ensuring that heating equipment remains compliant with safety regulations. The precise sensing mechanism is calibrated to trigger only when improper venting is confirmed, reducing nuisance trips while maintaining maximum protection for the heating apparatus. This compact replacement blocked vent switch is essential for routine maintenance or repair of Reznor unit heaters, offering a factory-specified fit that streamlines installation for professional contractors.

• Ensures heater shutdown during vent blockage to prevent hazardous flue gas accumulation.
• Genuine Reznor OEM part ensures exact compatibility with commercial and industrial heating units.
• Durable blocked vent limit switch design stands up to demanding mechanical room conditions.
• Enhances system safety by effectively monitoring draft conditions and combustion airflow.
• Direct replacement for SKU 113216, maintaining factory safety protocols.

What causes a blocked vent switch to trip?
A trip is typically caused by physical obstructions in the flue pipe, such as debris, bird nests, or heavy soot buildup, which restricts the exhaust airflow and increases internal temperatures.

How do I test the Reznor 113216 for proper operation?
A technician should check for continuity across the switch terminals. If the switch is open under normal operating temperatures without a blockage, the internal mechanism may have failed and requires replacement.

Can I bypass the 113216 switch during troubleshooting?
No. This is a primary safety device. Bypassing a blocked vent safety switch can lead to fire hazards or toxic gas exposure; it must only be replaced with a verified Reznor 113216 component.

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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.