Lochinvar 81 - 286 operation manual Ratings, Knight Boiler =B=R Rating

Page 7

Installation & Operation Manual

Ratings

Knight Boiler

I=B=R Rating

 

 

Input

Gross

Net

 

 

Output

Model Number

 

MBH

I=B=R

 

MBH

 

 

 

 

 

Ratings

 

 

 

 

 

Water,

Note: Change “N” to

 

(Note 5)

 

MBH

“L” for L.P. gas models.

 

 

 

 

 

 

 

 

 

 

 

 

Min

 

Max

(Note 2,7)

(Note 3,7)

KBN081

16

 

80

72

63

 

 

 

 

 

 

KBN106

21

 

105

94

82

 

 

 

 

 

 

KBN151

30

 

150

135

117

 

 

 

 

 

 

KBN211

42

 

210

190

165

 

 

 

 

 

 

KBN286

57

 

285

260

226

 

 

 

 

 

 

Other Specifications

Boiler

 

 

 

Vent

 

 

Air

Size

Water

Water

Gas

 

Size

 

Content

Connections

Connections

(Note 4)

Gallons

 

 

 

 

 

 

 

 

0.6

1"

1/2"

3"

3"

 

 

 

 

 

0.7

1"

1/2"

3"

3"

 

 

 

 

 

1.3

1"

1/2"

3"

3"

 

 

 

 

 

1.7

1"

1/2"

3"

3"

 

 

 

 

 

2.4

1-1/4"

3/4"

4"

4"

 

 

 

 

 

NOTICE

Maximum allowed working pressure is located on the rating plate.

 

 

8. Knight boilers comply with the requirements of CSD-1

Notes:

 

 

Section CW-400 requirements as a temperature operation

1. As an Energy Star Partner, Lochinvar has determined that

control. The manual reset high limit provided with the

Knight boilers meet the Energy Star guidelines for energy

Knight is listed to UL353.

efficiency.

2.The ratings are based on standard test procedures prescribed by the United States Department of Energy.

3.Net I=B=R ratings are based on net installed radiation of

sufficient quantity for the requirements of the building and nothing need be added for normal piping and pickup. Ratings are based on a piping and pickup allowance of 1.15.

4.

Knight boilers require special gas venting. Use only

UNIT EQUIPPED FOR

 

the vent materials and methods specified in the Knight

HIGH ALTITUDE

 

Installation and Operation Manual.

 

 

5.

Standard Knight boilers are equipped to operate from sea

3,000 FT. TO 12,000 FT.

 

 

level to 4,500 feet only with no adjustments. The boiler

 

 

will de-rate by 4% for each 1,000 feet above sea level up to

 

 

4,500 feet.

 

6.

High altitude Knight boilers are equipped to operate

 

 

from 3,000 to 12,000 feet only with no field adjustments.

 

 

The boiler will de-rate by 2% for each 1,000 feet above

 

 

3,000 feet. High altitude models are manufactured with

 

 

a different control module for altitude operation, but the

 

 

operation given in this manual remains the same as the

 

 

standard boilers. A high altitude label (as shown in FIG. A)

Figure A High Altitude Label Location

 

is also affixed to the unit.

 

7.

Ratings have been confirmed by the Hydronics Institute,

7

 

Section of AHRI.

 

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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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Manual 16 pages 57.5 Kb

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.

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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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