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Integrated Control: Built-in motor module manages speed and torque without the need for an external start/run capacitor
Key Benefits Pressure Isolation: Protects internal scanner optics from fluctuating windbox and furnace pressures
Industrial Build Quality: Durable diaphragm construction withstands the thermal cycling common in residential hydronic heating environments
Applying the included silicone is a critical step in the installation process to ensure heat is efficiently transferred from the board's power components to the heatsink
Hoffman Specialty 405102 Valve 319847-401 Integrated Control: Built-in motor moduleThe Hoffman Specialty 405102 is a professional grade 3 4" angle radiator supply valve designed for precision flow control in commercial and residential HVAC systems. Engineered as the direct replacement for 0036003, this Model 185C valve features a heavy duty brass and bronze construction to withstand demanding environments. As a veteran preferred steam radiator valve, it utilizes a non rising stem and packless construction, ensuring leak free