this motorized rectangular damper utilizes an opposed blade design to minimize air turbulence and provide superior linear airflow control compared to standard bypass dampers

Straight-Thru Flow: Optimizes piping layout for thermal expansion valve installations where space and pressure drop are critical factors

This specific model is designed for chilled and hot water systems

If the blower reaches the set point but the contacts remain open

Industrial Durability: Built with robust materials to resist the moisture and thermal cycling common in commercial steamers and ovens

Resideo L8148J1009 Aquastat Relay Els PW 17895 this motorized rectangular damper utilizesThe Resideo L8148J1009 Aquastat Relay is a specialized immersion type hydronic controller designed for contractors managing forced hydronic heating systems. Engineered for high limit protection, this unit integrates a switching relay to provide simultaneous control of both burner and circulator motors. It features a broad high limit operating range of 120 240F with an 8F fixed differential, ensuring precise temperature regulation and thermal safety.