Lochinvar 81 - 286 operation manual Boiler Flue Intake Air Adapter Termination

Page 19

Installation & Operation Manual

3 General venting (continued)

Stainless steel air intake/vent connections Figure 3-11Near Boiler Stainless Steel Venting Model 286

1. Combustion Air Intake Connector (FIG. 3-11) - Used to provide combustion air directly to the unit from outdoors. A fitting is provided on the unit for final connection. Combustion air piping must be supported per guidelines listed in the National Mechanical Code, Section 305, Table 305.4 or as local codes dictate.

2. Vent Connector (FIG. 3-11) - Used to provide a passageway for conveying combustion gases to the outside. A transition fitting is provided on the unit for final connection. Vent piping must be supported per the National Building Code, Section 305, Table 305.4 or as local codes dictate.

 

 

 

 

 

 

 

 

 

 

 

3" S.S. ADAPTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3" S.S. INTERMEDIATE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(FOR SAF-T VENT ONLY)

 

Table 3B Approved Stainless Steel Terminations and Adapters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ProTech

 

Heat Fab

 

 

 

 

 

Z Flex

 

Model

 

FasNSeal

 

Saf-T Vent

 

 

 

 

 

Z-Vent

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Boiler

Flue

Intake

Boiler

Intermediate

Flue

Intake

Boiler

Flue

 

Intake Air

 

 

 

Air

Air

 

 

Adapter

Termination

Adapter

Adapter

Termination

Adapter

Termination

 

Termination

 

Termination

Termination

 

81 - 211

300715

FSBS3

303889

KB80210

9353BUREZ-1*

9392

9314TERM

2SVSLA03

2SVSTP03

 

2SVSTEX0390

 

 

FSRC3(R.C)

 

 

 

5300CI

 

 

 

 

 

2SVSRCX03

 

 

286

F303759

FSBS4

FSAIH04

KB285600

9454BUREZ-1*

9492

9414TERM

2SVSLA04

2SVSTP04

 

2SVSTEX0490

 

 

FSRC4(R.C.)

303888

 

 

5400CI

 

 

 

 

 

2SVSRCX04

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*= This adapter must be used in addition to the boiler adapter for Saf-T vent pipe as shown in FIG. 3-11, unless approved vent other than standard diameter is used. Consult a Heat Fab representative for questions.

The Knight boiler uses model specific combustion air intake and vent piping sizes as detailed in Table 3C below.

Minimum / Maximum allowable combustion air and vent piping lengths are as follows:

Table 3C Air Intake/Vent Piping Sizes

 

Model

 

Air Intake

Vent

 

81 - 211

 

3 inches

3 inches

 

286

 

4 inches

4 inches

 

 

Increasing or decreasing combustion air

 

NOTICE

 

or vent piping is not authorized.

Combustion Air = 12 equivalent feet minimum / 100 equivalent feet maximum

Vent = 12 equivalent feet minimum / 100 equivalent feet maximum

When determining equivalent combustion air and vent length, add 5 feet for each 90° elbow and 3 feet for each 45° elbow.

EXAMPLE: 20 feet of PVC pipe + (4) 90° elbows + (2) 45° elbows + (1) concentric vent kit (CVK3003) = 49 equivalent feet of piping.

NOTICE

The appliance output rating will reduce by

up to 1.5% for each 25 feet of vent length.

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Contents Models 81 Contents Please read before proceeding When servicing boilerStainless steel heat exchanger Knight Boiler How it worksModels 81 Model Knight Boiler =B=R Rating RatingsBefore locating the boiler, check Installation must comply withCloset and alcove installations Determine boiler location1Closet Installation Minimum Required Clearances Flooring and foundation Residential garage installationProvide air openings to room Vent and air pipingProducts to avoid When using an existing vent system to install a new boilerAreas likely to have contaminants When removing a boiler from existing common vent system Leveling the boiler Prepare boilerRemove boiler from wood pallet Gas conversionsDirect venting options Sidewall Vent General ventingDirect venting options Vertical Vent, Sidewall Air Direct venting options Vertical VentPVC/CPVC vent piping materials Install vent and combustion air pipingRequirements for installation in Canada Installing vent and air pipingVent Pipe, and Fittings PVC/CPVC air intake/vent connectionsStainless steel vent Air inlet pipe materialsBoiler Boiler FlueBoiler Flue Intake Air Adapter Termination Length Optional room airRemoving from existing vent Determine location If using the alternate sidewall terminationSidewall direct venting Vent/air termination sidewall2AClearance to Gravity Air Inlets Prepare wall penetrations Prepare wall penetrations Alternate Field Supplied OptionMultiple vent/air terminations Termination and fittingsSidewall termination optional concentric vent Sidewall termination installationDescription and usage 10 Concentric Multiventing sidewall terminations 12Concentric Vent Sidewall AttachmentVent/air termination vertical Vertical direct venting2Vertical Terminations with Multiple Boilers Prepare roof penetrations Multiple vent/air terminationsVertical termination optional concentric vent Vertical termination installationMultiventing vertical terminations 6Concentric Vent Roof InstallationConcentric Venting Arrangement Alternate vertical concentric venting10Existing Vent as a Chase Existing vent as a chaseHydronic piping Near boiler piping components Strainer Near boiler piping connectionsCirculator sizing Indirect water heatersMinimum Pipe Pump Size Grundfos FeetPressure ModelVariable speed pump option Variable speed pump setupUP26-96 FC/VS IFC VS Stratos 1.25 3 x 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 Gas connections Connecting gas supply pipingPropane Gas Natural gasCheck inlet gas supply Single Unit Natural Gas Pipe Capacity ChartLength of Pipe in Straight Feet for 1/2 PSI Gas Pressure Gas valve replacementLow voltage connections Field wiringInstallation must comply with Line voltage connectionsLow gas pressure switch Outdoor temperature sensorLouver proving switch High gas pressure switchModBus Flow switchAlarm contacts Wiring of the cascadeManual Condensate drain Condensate disposalFill and test water system Freeze protection when usedStart-up Check/control water chemistryInspect/check condensate lines and fittings Check for gas leaksCheck thermostat circuits Inspect/fill condensate systemCheck system and boiler Final checks before starting the boilerStart the boiler If boiler does not start correctly2Operating Instructions Natural Gas Propane Set space heating operationConfiguration of the cascade Verify DHW modeSet domestic hot water DHW operation General Operating informationProtection features Boiler temperature regulation Cascade Outdoor reset operation, if usedOperation Display Sequence of operationStandby, ready to start a new cycle Navigation Dial Knight boiler control moduleInstaller Access modesUser Call for Heat Information Dial Function See the Knight User’s Information Manual for Instructions Maintenance Maintenance and annual startupService technician Owner maintenanceCheck expansion tank MaintenanceFlue vent system and air piping Check water systemInspect boiler interior Address reported problemsClean condensate trap Inspect boiler areaCheck flame signal Check ignition ground wiringCheck all boiler wiring Check control settingsKit Part Component Number Description Cleaning boiler heat exchangerReview with owner Oiled bearing circulatorsPC Interface Diagrams2Wiring 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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