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well immersion hydronic control designed for precise temperature regulation in hot water heating systems
this subbase ensures a secure foundation for 24V or 120V AC control circuits
Optimized Flow Performance: Maintains constant downstream pressure despite wide variations in primary line flow
Two 1/4" NPT gauge ports are included
High Force Output: Provides reliable mechanical advantage to overcome static pressure in small-to-medium damper assemblies
Fenwal 35-665535-011 Ignition Module Refrigerant well immersion hydronic control designedThe Fenwal 35 665535 011 Ignition Module is a high performance, microprocessor based 24 VAC hot surface ignition control designed for heavy duty gas fired equipment, including boilers, furnaces, and water heaters. Engineered to manage the full combustion sequence, this module integrates safe start logic, flame sensing, and blower relay control into a single, compact unit. As a three try ignition model, it provides improved reliability in demanding