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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Standard industry practice dictates replacing the HVAC filter drier whenever the system is opened for service
This kit is specifically for 8040 Series valves with AC coils
outperforming generic aftermarket alternatives
System Reliability: Replaces PRS2416K to resolve common pressure switch open error codes and ignition failure
Lochinvar & A.O. Smith 100277816 Control 318518-761 Standard industry practice dictates replacingThe Lochinvar & A. O. Smith 100277816 Interface Control is an essential OEM replacement component designed for precision management of commercial and residential water heaters and boilers. As a veteran grade HVACR control board, this unit integrates advanced diagnostic capabilities with a clear LCD interface to provide real time data on system temperature, sequence of operation, and communication status. This high performance boiler interface control