Aaon R81550 Temperature Sensor Els PW 17895 or mineral deposits at the

or mineral deposits at the body-to-cap interface indicate a failure in the trap body seal

System Integrity: Maintains original factory specifications for safety and performance in commercial air handlers

this Type 91 relay features a semi-enclosed design and 1/4-inch quick-connect terminals for seamless field installation

This low-profile adapter base operates on a wide 15-32 VDC range

Aaon R81550 Temperature Sensor Els PW 17895 or mineral deposits at theThe Aaon R81550 Outside Air Temperature Sensor is a critical component for maintaining accurate environmental monitoring and HVAC system efficiency. Designed specifically for integration with Aaon rooftop units and air handlers, this thermistor based sensor provides precise ambient air readings to the controller, ensuring proper economizer operation and lockout setpoints. This sensor is engineered to withstand harsh exterior conditions, preventing