Typical indicators include a lifting pilot flame

Is a hub puller required for installation

and keypad passcode security ensure system protection and prevent unauthorized setpoint tampering

Internal Thermal Protection: Engineered to withstand peak operating temperatures common in industrial heating enclosures

Engineered for 3-way valves

Trane SEN1789 Smoke Sensor 318172-701 Typical indicators include a liftingThe Trane SEN1789 Photoelectric Smoke Sensor is a critical safety component designed for precise duct smoke detection within commercial and residential HVAC systems. As an OEM replacement for models like the SEN01789 and SL 2000 P 3WTRA, this unit utilizes advanced photoelectric sensing technology to identify smoldering fires by monitoring light scattering patterns within the air handler. This high sensitivity approach ensures reliable HVAC system