Lochinvar 151 - 801 service manual

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Revision Notes: Revision A (ECO #C06238) initial release.

AWII-SER Rev A

8/10

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Contents Models 151 Contents Handling ceramic fiber materials Please read before proceedingNiosh stated First Aid What is in this manual? ServiceMaintenance TroubleshootingService Armor water heater displaySmart System Control Board Control inputsSmart System Control Board Control outputsAccess modes General OperationHow the water heater operates Sequence of operationOperation Display Display panel menu access Button Screen Operation Display StatusDisplay panel parameter access Parameter table GeneralModes Viewable and changeable control parameters DHW Settings Data LoggingFunctions Anti-CyclingControl modes Minimum On/Off Time Circulation pumpsService Notification Service technician Maintenance Maintenance and annual startupOwner maintenance Maintenance Flue vent system and air piping Check water systemCheck expansion tank Check water heater relief valveCheck ignition ground wiring Check all water heater wiringCheck control settings Perform start-up and checksCheck flame signal Cleaning heat exchangerReview with owner Oiled bearing circulatorsTroubleshooting Before troubleshootingCheck control module fuses Check the followingNo Display No BurnerOperation Unit Does NotChecking temperature sensors Temperature F Resistance ΩWire Color R/BK and Y Wire Color G and Y Resistance TemperatureNoisy No PumpRelief Valve OpeningFault Description Corrective Action Flow SwitchAnti-cycling Flame Fail IgnNo Flame RunningAuto Reset Manual ResetFlame Sequence High LimitFan Low Fan Speed LowGV/Relay FailSensor Shorted Louver ProvingFlue Temp High Delta T HighOutlet Temp High Service BlkRem Ctrl Flt Watch Dog Error No Error StoredFatal Error Low 24 VACCombustion Analysis Procedure Gas Valve AdjustmentOr Obstruction Gas Supply PressureModels 151 Gas valve adjustment procedureModel 4Gas Valve Adjustment Model Models 601

151 - 801 specifications

Lochinvar 151 - 801 is a high-efficiency commercial water heater designed to meet the demanding needs of various applications in the hospitality, healthcare, and educational sectors. This advanced system provides reliable hot water with enhanced performance while promoting energy conservation and sustainability.

One of the standout features of the Lochinvar 151 - 801 is its powerful heating capability. With a robust heating input of up to 150,000 BTU per hour, it ensures a steady supply of hot water even during peak demand times. The efficient heat exchanger design optimizes thermal performance, allowing for quicker recovery rates, which is essential for facilities requiring substantial hot water usage.

This model integrates cutting-edge technologies to maximize energy efficiency. Utilized in the Lochinvar 151 - 801 is the Smart System control technology, which provides precise temperature management and diagnostics. This feature not only enhances operation efficiency but simplifies service and maintenance by providing real-time data and alerts, leading to reduced downtime.

Additionally, the Lochinvar 151 - 801 employs a stainless-steel tank construction that promotes durability and robustness. The tank is adequately insulated to minimize heat loss, thus keeping energy costs down. Its compact design also allows for easy installation in various spaces, including those with limited footprints.

Moreover, the unit features advanced combustion technology, including a modulating gas valve that adjusts the flame size according to demand, promoting even greater efficiency. This ensures that the water heater operates at optimum performance levels, reducing fuel consumption while ensuring a consistent supply of hot water.

Safety is a primary concern for Lochinvar, and the 151 - 801 model includes several integrated safety features, such as an ignition safety shutoff and a temperature/pressure relief valve. These systems work together to provide peace of mind while ensuring the unit operates safely within its designated parameters.

In conclusion, the Lochinvar 151 - 801 is an exemplary choice for commercial applications, offering powerful performance, efficient technologies, durable construction, and enhanced safety features. With its combination of high output and advanced monitoring capabilities, it stands as a reliable solution for organizations seeking an effective hot water heating solution.