Lochinvar 81 - 286 Feet, Pressure, Model, Minimum Pipe Pump Size Grundfos, Armstrong

Page 37

Installation & Operation Manual

6 Hydronic piping (continued)

Figure 6-3Pressure Drop vs. Flow

Pressure Drop vs. Flow (Includes Secondary Piping)

Head)

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81

106

151

211

286

Flow Rate (GPM)

Table 6A Circulator Recommendations for Temperature Rise Applications_20°, 25°, and 35°

20°F Temperature Rise Applications

Model

GPM

FT/HD

Minimum Pipe

 

Pump

 

 

Size

Grundfos

TACO

B & G

Armstrong

 

 

 

81

7.5

24

1"

UPS26-99F

0011

NRF-36

E7

106

9.8

27

1"

UPS26-99F*

0013

NRF-36

E11

151

14.0

20

1"

UPS26-99F

0011

NRF-36

E7

211

19.6

29

1"

UPS32-160

1400-50

PL-55

E9*

286

26.5

15

1-1/4"

UPS32-80

1400-20

PL-36

E11

*NOTICE

These pumps are only slightly above 20° rise flows, but are the closest available. To reach a 20° rise or less, an upsized pump will be required.

 

 

 

25°F Temperature Rise Applications

 

 

Model

GPM

FT/HD

 

Minimum Pipe

 

Pump

 

 

 

Size

Grundfos

TACO

B & G

Armstrong

 

 

 

 

81

5.9

15.0

 

1"

UPS15-58FC

0014

NRF-36

E7

106

7.7

17.5

 

1"

UPS26-99F

0014

NRF-36

E7

151

11.0

12.8

 

1"

UPS26-99F

0014

NRF-36

E7

211

15.5

19.0

 

1"

UPS26-99F

0013

NRF-36

E7

286

21.0

11.5

 

1-1/4"

UPS26-99F

0011

NRF-36

E7

 

 

 

 

 

35°F Temperature Rise Applications

 

 

 

 

 

Model

 

GPM

FT/HD

 

Minimum Pipe

 

Pump

 

 

 

 

 

 

 

Size

Grundfos

TACO

B & G

Armstrong

 

 

 

 

 

 

81

 

4.2

7.3

 

1"

UPS15-58FC

007

NRF-22

 

Astro-30

106

 

5.5

9.3

 

1"

UPS15-58FC

007

NRF-22

 

Astro-30

151

 

7.9

9.5

 

1"

UPS15-58FC

008/0010

NRF-36

 

Astro-30

211

 

11.0

9.1

 

1"

UPS15-58FC

0010

NRF-36

 

Astro-50

286

 

15.0

7.3

 

1-1/4"

UP26-64F

008/0010

NRF-36

 

 

E7

 

 

 

Pumps listed in bold type are provided by the factory as the boiler circulation pump on standard altitude

NOTICE

 

 

models.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pumps listed in italicized type are provided by the factory as the boiler circulation pump on high altitude

NOTICE

 

 

models.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The temperature rise provided by a pump/model combination will decrease by 3% per 1000 feet of elevation.

NOTICE

 

 

 

 

 

 

 

 

 

 

 

 

 

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Image 37
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 RatingsCloset and alcove installations Installation must comply withDetermine boiler location Before locating the boiler, check1Closet Installation Minimum Required Clearances Provide air openings to room Residential garage installationVent and air piping Flooring and foundationProducts 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 Remove boiler from wood pallet Prepare boilerGas conversions Leveling the boilerDirect venting options Sidewall Vent General ventingDirect venting options Vertical Vent, Sidewall Air Direct venting options Vertical VentRequirements for installation in Canada Install vent and combustion air pipingInstalling vent and air piping PVC/CPVC vent piping materialsVent 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 Sidewall direct venting If using the alternate sidewall terminationVent/air termination sidewall Determine location2AClearance 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 Circulator sizing Near boiler piping connectionsIndirect water heaters StrainerPressure FeetModel Minimum Pipe Pump Size GrundfosVariable 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 replacementInstallation must comply with Field wiringLine voltage connections Low voltage connectionsLouver proving switch Outdoor temperature sensorHigh gas pressure switch Low gas pressure switchAlarm contacts Flow switchWiring of the cascade ModBusManual Condensate drain Condensate disposalStart-up Freeze protection when usedCheck/control water chemistry Fill and test water systemCheck thermostat circuits Check for gas leaksInspect/fill condensate system Inspect/check condensate lines and fittingsStart the boiler Final checks before starting the boilerIf boiler does not start correctly Check system and boiler2Operating 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 Service technician Maintenance Maintenance and annual startupOwner maintenance See the Knight User’s Information Manual for InstructionsFlue vent system and air piping MaintenanceCheck water system Check expansion tankClean condensate trap Address reported problemsInspect boiler area Inspect boiler interiorCheck all boiler wiring Check ignition ground wiringCheck control settings Check flame signalReview with owner Cleaning boiler heat exchangerOiled bearing circulators Kit Part Component Number DescriptionPC 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.

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.