Lochinvar 81 - 286 operation manual General venting, Direct venting options Sidewall Vent

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Installation & Operation Manual

3 General venting

Direct venting options - Sidewall Vent

Figure 3-1PVC/CPVC Two-Pipe Sidewall Termination - See page 21 for more details

Figure 3-2Stainless Steel Two-Pipe - See page 22 for more details

Figure 3-3PVC/CPVC Concentric Sidewall Termination - See page 25 for more details

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Contents Models 81 Contents When servicing boiler Please read before proceedingKnight Boiler How it works Stainless steel heat exchangerModels 81 Model Ratings Knight Boiler =B=R RatingDetermine boiler location Installation must comply withCloset and alcove installations Before locating the boiler, check1Closet Installation Minimum Required Clearances Vent and air piping Residential garage installationProvide air openings to room Flooring and foundationAreas 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 Leveling the boilerGeneral venting Direct venting options Sidewall VentDirect venting options Vertical Vent Direct venting options Vertical Vent, Sidewall AirInstalling vent and air piping Install vent and combustion air pipingRequirements for installation in Canada PVC/CPVC vent piping materialsPVC/CPVC air intake/vent connections Vent Pipe, and FittingsAir inlet pipe materials Stainless steel ventBoiler Flue Intake Air Adapter Termination Boiler FlueBoiler Removing from existing vent Optional room airLength Vent/air termination sidewall If using the alternate sidewall terminationSidewall direct venting Determine location2AClearance to Gravity Air Inlets Prepare wall penetrations Alternate Field Supplied Option Prepare wall penetrationsTermination and fittings Multiple vent/air terminationsDescription and usage Sidewall termination installationSidewall termination optional concentric vent 10 Concentric 12Concentric Vent Sidewall Attachment Multiventing sidewall terminationsVertical direct venting Vent/air termination verticalPrepare roof penetrations Multiple vent/air terminations 2Vertical Terminations with Multiple BoilersVertical termination installation Vertical termination optional concentric vent6Concentric Vent Roof Installation Multiventing vertical terminationsAlternate vertical concentric venting Concentric Venting ArrangementExisting vent as a chase 10Existing Vent as a ChaseHydronic piping Near boiler piping components Indirect water heaters Near boiler piping connectionsCirculator sizing StrainerModel FeetPressure Minimum Pipe Pump Size GrundfosUP26-96 FC/VS IFC VS Stratos 1.25 3 x Variable speed pump setupVariable speed pump option 4Single Boiler Single Temperature Zoned with Circulators Number of Units 6Single Boiler Multiple Temperatures Number of Units Model Required Pipe Sizes MAY Substitute Number of Units Model 10Multiple Boilers Non-Zoned Primary/Secondary Piping Connecting gas supply piping Gas connectionsNatural gas Propane GasLength of Pipe in Straight Feet for 1/2 PSI Single Unit Natural Gas Pipe Capacity ChartCheck inlet gas supply Gas valve replacement Gas PressureLine voltage connections Field wiringInstallation must comply with Low voltage connectionsHigh gas pressure switch Outdoor temperature sensorLouver proving switch Low gas pressure switchWiring of the cascade Flow switchAlarm contacts ModBusManual Condensate disposal Condensate drainCheck/control water chemistry Freeze protection when usedStart-up Fill and test water systemInspect/fill condensate system Check for gas leaksCheck thermostat circuits Inspect/check condensate lines and fittingsIf boiler does not start correctly Final checks before starting the boilerStart the boiler 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 DisplayStandby, ready to start a new cycle Knight boiler control module Navigation DialUser Access modesInstaller Call for Heat Information Dial Function Owner maintenance Maintenance Maintenance and annual startupService technician See the Knight User’s Information Manual for InstructionsCheck water system MaintenanceFlue vent system and air piping Check expansion tankInspect boiler area Address reported problemsClean condensate trap Inspect boiler interiorCheck control settings Check ignition ground wiringCheck all boiler wiring Check flame signalOiled bearing circulators Cleaning boiler heat exchangerReview with owner Kit Part Component Number DescriptionDiagrams PC Interface2Wiring Diagram
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81 - 286 specifications

Lochinvar 81 - 286 is a state-of-the-art boiler recognized for its efficiency and reliability in both residential and commercial applications. This high-performance heating solution is designed to meet the diverse needs of users while adhering to modern environmental standards.

One of the standout features of the Lochinvar 81 - 286 is its advanced condensing technology. This allows the unit to harness more heat from the combustion gases, significantly boosting its thermal efficiency. With an impressive efficiency rating of over 95%, users can expect lower energy bills and reduced carbon emissions, making this boiler an environmentally friendly choice.

The Lochinvar 81 - 286 incorporates a robust stainless steel heat exchanger that guarantees durability and longevity. This corrosion-resistant material not only prolongs the unit's life but also ensures consistent performance over time. Additionally, the heat exchanger’s design facilitates optimal heat transfer, further enhancing the boiler's efficiency.

In terms of control, the Lochinvar 81 - 286 features a user-friendly control interface that simplifies operation. The boiler is equipped with advanced modulation capabilities, allowing it to adjust its output based on real-time heating demands. This responsiveness reduces energy waste and optimizes comfort levels within the space it serves.

The boiler also supports a variety of installation configurations, providing flexibility for different building layouts. Its compact design allows for easy installation in restricted spaces, while versatile venting options facilitate integration into various systems.

Safety is a paramount consideration in the design of the Lochinvar 81 - 286. The unit comes with integrated safety features such as a built-in diagnostic system that alerts users to any potential issues before they escalate. This proactive technology helps in maintaining seamless operation and reducing downtime.

Finally, the Lochinvar 81 - 286 is compliant with the latest regulations and industry standards, ensuring that it meets the expectations of both consumers and environmental agencies. With its impressive combination of efficiency, durability, and advanced technology, the Lochinvar 81 - 286 stands out as a top choice for anyone seeking a high-performance heating solution. This boiler not only addresses the immediate needs of heating but also supports long-term sustainability initiatives, proving to be a wise investment for the future.
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