replace every 6 months or when flow rates noticeably drop to maintain full scale-inhibition performance

Common Questions: Is the Sporlan 400052 bi-directional

it is rated for 40A inductive and 40A resistive loads

Includes Short Shaft Adapter

the Danfoss 120Z0459 is the identical technical replacement for part number 7303507

Lochinvar & A.O. Smith 100208834 Temp Sensor Els PW 17895 replace every 6 months orOptimize your hydronic systems firing rate with the Lochinvar & A. O. Smith 100208834 Outdoor Temp Sensor. This high precision thermistor based sensor is a critical component for outdoor reset control, allowing your boiler to adjust its water temperature setpoint based on actual ambient conditions. By providing real time data to the integrated HVAC control board, it prevents short cycling and significantly improves fuel economy in residential and