Lochinvar 51 operation manual

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Revision A (ECO #C05747) initial release. Reflects the new model numbers for the Knight Wall Mount upgrade.

Revision B (ECO #C06188) reflects updates made to the ladder and wiring diagrams (ECO #C06158).

Revision C (ECO #C06234) reflects changes made to the Service Reminder feature.

WBII-I-O Rev C 8/10

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Contents Models 51 Contents When servicing boiler Please read before proceedingKnight Wall Mount Boiler How it works Stainless steel heat exchangerModels 51 Ratings Knight Wall Mount Boiler =B=R RatingInstallation must comply with Closet and alcove installationsDetermine boiler location Before locating the boiler, check1Closet Installation Minimum Required Clearances Provide air openings to room Vent and air pipingWall mounting location Prevent combustion air contaminationAreas likely to have contaminants When using an existing vent system to install a new boilerProducts to avoid When removing a boiler from existing common vent system Gas conversions Prepare boilerRemove boiler from wood pallet Mounting the boiler Mounting to a concrete wallMounting to a metal studded wall Mounting to a wood studded wallGeneral venting Direct venting options Sidewall VentDirect venting options Vertical Vent Direct venting options Vertical Vent, Sidewall AirInstall vent and combustion air piping Requirements for installation in CanadaInstalling vent and air piping PVC/CPVC Vent piping materialsPVC/CPVC air intake/vent connections Air inlet pipe materialsApproved Stainless Steel Vent Manufacturers MakeStainless steel vent Boiler FlueBoiler Boiler Flue Intake Air AdapterStainless steel air intake/vent connections Removing from existing ventVent and air system Vent, air piping and terminationOptional room air Model Kit Number KIT30051 Air contaminationIf using the alternate sidewall termination Sidewall direct ventingVent/air termination sidewall Vent Size2AClearance to Gravity Air Inlets Prepare wall penetrations Prepare wall penetrations Alternate Field Supplied OptionTermination and fittings Multiple vent/air terminationsDescription and usage Sidewall termination installationSidewall termination optional concentric vent 8Concentric Vent Dimensional Drawing Sidewall termination optional concentric vent models10Concentric Vent Sidewall Attachment Multiventing sidewall terminationsVertical direct venting Vent/air termination verticalPrepare roof penetrations 2Vertical Terminations with Multiple BoilersVertical termination installation Vertical termination optional concentric ventMultiventing vertical terminations Minimum Combustion AIR TypicalAlternate vertical concentric venting Concentric Venting ArrangementExisting vent as a chase AIR Inlet Flue Exhaust Seal CAP Existing Flue OutletHydronic piping Near boiler piping components Near boiler piping connections Circulator sizingArmstrong ModelMinimum Pipe Pump Size Grundfos Variable speed pump setup Variable speed pump optionModel Grundfos UP26-96 FC/VS IFC VS Stratos 1.25 3 x3Single Boiler Single Temperature Zoned with Circulators Number of Units 5Single Boiler Multiple Temperatures Multiple Boilers Multiple Temperatures Model 8Single Boiler Zoned with Valves Model 10Single Boiler Non-Zoned Primary/Secondary Piping Connecting gas supply piping Gas connectionsNatural gas Propane GasLength of Pipe in Straight Feet for 1/2 PSI Natural Gas Pipe Capacity ChartCheck inlet gas supply Gas valve replacement Gas PressureField wiring Installation must comply withLine voltage connections Low voltage connectionsOutdoor temperature sensor Louver proving switchFlow switch ThermostatAlarm contacts Wiring of the cascadeSystem supply sensor Boiler management systemInstallation Condensate disposal Condensate drainFreeze protection when used Start-upCheck/control water chemistry Fill and test water systemClean/Inspect Trap Assembly Check for gas leaks Check thermostat circuitsInspect/fill condensate system Inspect/check condensate lines and fittingsFinal checks before starting the boiler Start the boilerIf boiler does not start correctly Check system and boiler2Operating Instructions Set space heating operation Natural Gas PropaneSet domestic hot water DHW operation Verify DHW modeConfiguration of the cascade Operating information GeneralProtection features Boiler temperature regulation Outdoor reset operation, if used CascadeSequence of operation Operation DisplayUser Access modesInstaller Knight wall mount boiler control module 1Control PanelCall for Heat Information Right Select no Owner maintenance Maintenance Maintenance and annual startupService technician Maintenance Check ignition ground wiring Check all boiler wiringCheck control settings Check expansion tankCheck flame signal Cleaning boiler heat exchangerReview with owner Oiled bearing circulatorsDiagrams PC Interface2Wiring Diagram Page Page

51 specifications

Lochinvar 51 is an innovative and robust residential boiler system designed for high-efficiency heating needs. A popular choice among homeowners, the Lochinvar 51 stands out in the market due to its advanced features and eco-friendly technologies.

One of the main features of Lochinvar 51 is its compact design, making it ideal for installation in limited space environments such as attics or closets. Despite its small footprint, it boasts a powerful heating capacity, suitable for varying home sizes. The boiler operates with a modulating gas burner that allows it to adjust its heat output according to the demand, ensuring efficiency and comfort throughout the day.

The Lochinvar 51 employs a cutting-edge heat exchanger made from stainless steel, which is highly durable and resistant to corrosion. This design not only enhances the boiler's performance but also increases its lifespan. The unit offers impressive AFUE (Annual Fuel Utilization Efficiency) ratings, showcasing its capability to convert a significant portion of fuel into usable heat, thus minimizing energy waste and reducing heating costs.

Technologically, the Lochinvar 51 is equipped with advanced control systems that facilitate precise temperature management. The intuitive interface allows homeowners to easily set their desired temperature and monitor the system’s performance. Additionally, the integration of outdoor reset technology helps optimize energy consumption by adjusting the water temperature based on outside weather conditions, leading to further energy savings.

Safety features are also paramount in the Lochinvar 51. It includes built-in safeguards that monitor pressure and temperature, automatically shutting down the system in case of any irregularities. This not only protects the boiler but also ensures peace of mind for users.

Moreover, Lochinvar 51 supports compatibility with smart home systems, providing homeowners with remote control capabilities via mobile devices. This innovative feature enhances user convenience, allowing for easy adjustments and monitoring of the heating system from anywhere.

In conclusion, the Lochinvar 51 is an exceptional choice for homeowners looking for a reliable, efficient, and technologically advanced heating solution. With its impressive heating capacity, durable design, and innovative control features, it sets a high standard in residential boiler performance, making it a top contender in today’s market.
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