Reznor 272743 Flame Sensor for Gas Heating Equipment

The Reznor 272743 is a genuine OEM flame sensor designed for use in Reznor packaged rooftop units and gas-fired heating systems. This critical safety component detects the presence of a flame during burner operation, ensuring that fuel is not released into the unit without proper ignition.

Key Features:

• OEM replacement part manufactured by Nortek Global HVAC for Reznor heating equipment
• Monitors burner flame continuously and provides feedback to the control system
• Automatically signals system shutdown if no flame is detected, preventing dangerous gas buildup
• Essential safety device for maintaining safe and reliable heater operation
• Compatible with multiple Reznor rooftop unit heat sections including standard and high-efficiency models

The flame sensor works by detecting the flame's electrical conductivity through flame rectification. When the burner ignites, the sensor rod positioned in the flame path sends a signal to the control board confirming proper combustion. If the flame is extinguished or fails to ignite, the sensor immediately alerts the control system to shut down the gas valve as a safety precaution. This part is specifically engineered for compatibility with Reznor packaged rooftop equipment and is used across various heat section options with all gas valve configurations.