Utilizing high-density activated charcoal

allowing for centralized HVAC system diagnostics and setpoint management across multiple zones

or excessive condensate buildup

low-maintenance solution for proportional 0-10 VDC or 4-20 mA control loops

While it features a 3/8" NPT vent connection

Utica-Dunkirk 550002858 Aquastat Els PW 29614 Utilizing high-density activated charcoalThe Utica Dunkirk 550002858 Aquastat is a heavy duty SPST immersion aquastat designed for accurate limit or regulation control of water temperatures in hydronic heating systems. Specifically engineered for Utica and Dunkirk boiler systems, this OEM component operates across a 110F to 200F range to maintain optimal thermal stability. As a 240007710 retrofit kit equivalent, it is the primary replacement for obsolete 146 62 025 and L7148F1042 controls.