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As a 120V to 24V step-down transformer
it allows for the installation of direct-coupled actuators in stationary heating
Always check for a shorted contactor coil or pinched thermostat wire before replacing
For technicians performing a furnace collector box replacement
Reznor 171750 Sensing Tube 321894-709 As a 120V to 24VThe Reznor 171750 Sensing Tube is a critical OEM replacement part designed for precision pressure monitoring within Reznor gas fired unit heaters. As a veteran grade HVAC replacement component, this sensing tube connects the burners combustion environment to the pressure switch, ensuring the system maintains a safe air to fuel ratio. In the field, a clogged or cracked pneumatic lineoften caused by hairline fractures or carbon buildupwill lead to
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