Siemens Building Technology 277-03206 Valve Assembly 321702-401 making it the professional standard

making it the professional standard for longevity

Common Questions Is the Nordyne 622684 compatible with older PSC systems

OEM Compatibility: Genuine Carrier replacement part ensures perfect physical fitment and electrical synchronization

Industrial Build Quality: Designed to withstand the rigorous thermal cycling common in hydronic heating systems and commercial boilers

ensuring broad compatibility across various model generations

Siemens Building Technology 277-03206 Valve Assembly 321702-401 making it the professional standardThe Siemens 277 03206 is a heavy duty 3 way mixing valve assembly engineered for precise temperature control in commercial hydronic systems. This 2 inch NPT pneumatic valve features a robust bronze body and durable brass trim, providing a 40 Cv flow coefficient to handle high demand HVAC applications. Equipped with an 8 inch pneumatic actuator, the unit operates on a 5 PSI spring span with an adjustable spring range, allowing technicians to calibrate