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this valve ensures stable evaporator pressures while preventing compressor short cycling during low-load conditions
it prevents performance fluctuations
Professional installation is recommended to ensure correct HVAC safety switch positioning and wiring
Precise Snap-Action: Integrated SPST switch provides reliable cycling and prevents contact welding
it operates as a direct-fit solution for technicians looking to restore factory-spec heating system performance without specialized field modifications
Lochinvar & A.O. Smith 100208470 Control Board 320819-301 this valve ensures stable evaporatorThe Lochinvar & A. O. Smith 100208470 Integrated Control Board is a critical OEM replacement component engineered specifically for SYNC SBN1300 1500 condensing boilers. As a primary main control power module, this board facilitates precise management of the combustion process, including modulating firing rates and integrated modbus communication for advanced system networking. This unit serves as the direct replacement for obsolete Lochinvar RLY20055