it is designed to pair with non-spring return and spring return actuators

a Range 5 controller (such as the PS1-X5A) should be utilized to handle the higher psig thresholds required for condenser side safety

This E-Series unit utilizes advanced electronic potential relay (EPR) technology to provide a precision-timed torque increase

maintaining exact factory specifications to ensure seamless HVAC part compatibility for field technicians and contractors

This genuine Lennox part (also identified as 39F9501) ensures the gas valve remains open only when a stable ignition is detected

Lochinvar & A.O. Smith 100170488 Lower Sensor 30067439-890 it is designed to pairThe Lochinvar & A. O. Smith 100170488 Lower Sensor is a critical thermistor based component engineered for precise thermal monitoring in high efficiency water heating systems. As an exact replacement for the TST1188 sensor, this part ensures the control board receives accurate resistance feedback from the lower portion of the tank. For technicians troubleshooting Lochinvar water heater error codes or A. O. Smith temperature sensor faults, installing