Lochinvar 50-210 service manual Maximum SH set point, Minimum SH set point, Outdoor air shutdown

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Service Manual

1Service (continued)

Figure 1-1Outdoor Air Reset Curve

Maximum SH set point

When the outdoor temperature drops to or below its minimum setting (F1) the water temperature will be at this point, if the SH set point is set higher (FIG. 1-1). This parameter can be changed by the installer by accessing parameter F3. The temperature range of this parameter is 0°F to 190°F. The default value is 180°F.

Minimum SH set point

When the outdoor temperature rises to or above its maximum setting (F2) the water temperature will be at this point (FIG. 1-1). This parameter can be changed by the installer by accessing parameter F4. The temperature range of this parameter is 0°F to 190°F. The default value is 70°F.

Outdoor air shutdown

When the outdoor temperature rises above this point, the control will block all SH demands (DHW demands will still be active). This parameter can be changed by the user or the installer by accessing parameter F5. The temperature range of this parameter is 0°F to 120°F. The default value is 80°F.

Outdoor air shutdown differential

The outdoor air shutdown differential parameter is the number of degrees below parameter F5 the outdoor air temperature must go before the boiler will respond to a SH demand. This parameter can be changed by the user or the installer by accessing parameter F6. The temperature range of this parameter is 0°F to 90°F. The default value is 10°F.

Shift reset curve

The shift reset curve parameter shifts the actual set point above the calculated set point the number of degrees in this parameter. This parameter can be changed by the installer by accessing parameter F7. The temperature range of this parameter is -27°F to 27°F. The default value is 0°F. This feature will be active if this parameter is set to anything other than 0°F.

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Contents Models 50 Contents Handling ceramic fiber materials Please read before proceedingNiosh stated First Aid When servicing boiler Troubleshooting What is in this manual?Service MaintenanceNear boiler piping ServiceKnight wall mount display Control inputs Smart Control ModuleControl outputs Sequence of operation General OperationHow the boiler operates How the control module operatesOUT 123.8F129 Sequence of operationBLR SH 41% Rate Display panel menu access Display panel parameter access Parameter table Temperature DataControl Circulation Service Viewable and changeable control parameters Temperature settingsFunctions DHW settingsOutdoor air reset Data loggingOutdoor air shutdown Shift reset curveMaximum SH set point Minimum SH set pointAnti-cycling Boiler cascade address Control modesSH controlling sensor SH sourceCascade offset Service NotificationCirculation pumps Service technician Maintenance Maintenance and annual startupOwner maintenance Maintenance Check boiler relief valve Flue vent system and air pipingCheck water system Check expansion tankInspect ignition and flame sense electrodes Check ignition ground wiringCheck all boiler wiring Check control settingsOiled bearing circulators Check flame signalCleaning boiler heat exchanger Review with ownerCheck the following TroubleshootingBefore troubleshooting Check control module fusesUnit Does Not No DisplayNo Burner OperationTemperature Resistance Checking temperature sensorsDHW Pump NoisyNo Pump Boiler Pump System PumpSequence Switch/LWCOFlow FlameNo Flame Ign Anti-cyclingRunning No FlameFan Speed Low Auto ResetHigh Limit Fan LowSensor Shorted Fan HighFan Speed High Sensor OpenTemp O/Shoot Parameters Progr Rem Ctrl FltOpen Low 24 vac Service BlkWatch Dog Error No Error StoredGas Supply Pressure Combustion Analysis ProcedureGas Valve Adjustment Or Obstruction2Gas Valve Adjustment Gas valve adjustment procedurePage

50-210 specifications

The Lochinvar 50-210 is a powerful and efficient boiler designed for residential and commercial heating applications. This model is a part of Lochinvar’s line of advanced heating solutions, known for their reliability, efficiency, and innovative technologies. The 50-210 offers a high thermal efficiency rating, ensuring that energy consumption is minimized while still providing excellent heating performance.

One of the standout features of the Lochinvar 50-210 boiler is its advanced control system. It is equipped with a user-friendly LCD display that allows easy access to system settings and real-time performance data. This technology enhances user experience, allowing for easy adjustments and monitoring, ensuring optimal performance based on specific heating needs.

The Lochinvar 50-210 is designed with a fully modulating burner, which means it can adjust its output to match the heating demand effectively. This feature not only provides superior comfort but also increases energy savings by preventing the boiler from running at full capacity when it's not necessary. Moreover, the modulating burner minimizes wear and tear, extending the lifespan of the unit.

In terms of safety, the Lochinvar 50-210 incorporates several features such as multiple temperature and pressure sensors, flame safeguard systems, and safety cut-off controls. These safeguard mechanisms ensure that the system operates safely and efficiently, providing peace of mind to users.

The construction of the Lochinvar 50-210 is robust, featuring high-grade stainless steel and a durable heat exchanger. This design helps resist corrosion, ensuring longevity and requiring minimal maintenance over the years. Additionally, its compact design allows for easier installation, making it suitable for various settings, even those with limited space.

Furthermore, the Lochinvar 50-210 operates quietly, which adds to its appeal for residential installations. Its environmental considerations are also noteworthy, with low emissions contributing to cleaner air quality.

Overall, the Lochinvar 50-210 is a sophisticated heating solution that blends efficiency, reliability, and advanced technology. With its user-friendly controls, modulating burner, safety features, and durable construction, it meets the heating demands of modern homes and commercial spaces, making it a top choice for those seeking dependable boiler performance.
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