Lochinvar RLY30113 Integrated Control Shield SNA401

Product DescriptionThe LOCHINVAR RLY30113 is an integrated control board designed for commercial water heating applications. This board manages the core operating logic of the water heater, coordinating ignition sequencing, temperature regulation, and safety shutoff functions within the unit. Licensed HVAC technicians and commercial plumbers working on Lochinvar water heating equipment will encounter this board as the primary electronic controller governing system operation. It serves as the brain of the heater, processing sensor inputs and issuing commands to burner and safety components throughout each heating cycle.The RLY30113 is specified for use with the Lochinvar Shield model SNA401 water heater. The Shield line is a commercial-grade water heating platform commonly found in light commercial and institutional settings such as apartment buildings, hotels, and facilities requiring high-volume domestic hot water. This control board is the OEM-specified replacement for maintaining factory performance and safety logic in that unit.Key FeaturesIntegrated control logic manages ignition sequencing, temperature monitoring, and safety shutoff in a single boardOEM-specified replacement for the Lochinvar Shield SNA401 water heaterDesigned to maintain factory operating parameters and safety interlock behaviorDirect-fit installation reduces diagnostic uncertainty during control board replacementCompatibilitySpecified for use with Lochinvar Shield model SNA401 water heaters.Installation NotesInstallation should be performed by a licensed plumber or HVAC technician familiar with commercial water heating equipment. Shut off gas supply and disconnect electrical power to the unit before removing the existing control board. Follow applicable local codes and the manufacturer service documentation when routing and reconnecting wiring harnesses to the replacement board. Restore power only after all connections are verified secure and the access panel is properly reinstalled.Technical SpecificationsCompatible Model: Lochinvar Shield SNA401 water heaterStandard InformationBrand: LOCHINVARManufacturer Part Number: RLY30113