Lochinvar 51 operation manual Contents

Page 2

Contents

HAZARD DEFINITIONS

. 2

Vertical Termination - Optional Concentric Vent

. . . . . . . 29-30

PLEASE READ BEFORE PROCEEDING

. 3

Optional Vertical Concentric Venting

. . . . . . . 31-32

THE KNIGHT WALL MOUNT BOILER--HOW IT WORKS . . . 4-5

6. HYDRONIC PIPING

 

RATINGS

. 6

System Water Piping Methods

. . . . . . . 33

1. DETERMINE BOILER LOCATION

 

Low Water Cutoff Device

. . . . . . . 33

Provide Clearances

. 7

Chilled Water System

. . . . . . . 33

Provide Air Openings to Room

. 9

Freeze Protection

. . . . . . . 33

Wall Mounting Location

9

General Piping Information

. . . . . . . 33

Residential Garage Installation

. 9

Near Boiler Piping Components

. . . . . . . 34

Vent and Air Piping

. 9

Near Boiler Piping Connections

. . . . . . . 35

Prevent Combustion Air Contamination

. 9

Circulator Sizing

. . . . . . . 35

Corrosive Contaminants and Sources

10

Variable Speed Pump Option

. . . . . . . 37

Using an Existing Vent System to Install a New Boiler . .

10

7. GAS CONNECTIONS

 

Removing a Boiler from Existing Common Vent

11

Connecting Gas Supply Piping

. . . . . . . 46

2. PREPARE BOILER

 

Natural Gas

. . . . . . . 47

Remove Boiler from Wood Pallet

12

Pipe Sizing for Natural Gas

. . . . . . . 47

Gas Conversions

12

Natural Gas Supply Pressure Requirements

. . . . . . . 47

Mounting the Boiler

13

Propane Gas

. . . . . . . 47

3. GENERAL VENTING

 

Pipe Sizing for Propane Gas

. . . . . . . 47

Direct Venting Options

14-15

Propane Supply Pressure Requirements . . .

. . . . . . . 47

Install Vent and Combustion Air Piping

16

Check Inlet Gas Supply

. . . . . . . 48

PVC/CPVC Vent Piping Materials

16

Gas Pressure

. . . . . . . 49

Requirements for Installation in Canada

16

Gas Valve Replacement

. . . . . . . 49

PVC/CPVC Air Intake/Vent Connections

17

8. FIELD WIRING

 

Air Inlet Pipe Materials

17

Line Voltage Connections

. . . . . . . 50

Stainless Steel Vent

18

Low Voltage Connections

. . . . . . . 50

Max. Allowable Vent Piping Lengths

19

Wiring of the Cascade

. . . . . . . 52

Vent and Air Piping

19

9. CONDENSATE DISPOSAL

 

Optional Room Air

20

Condensate Drain

. . . . . . . 54

4. SIDEWALL DIRECT VENTING

 

10. STARTUP

. . . . . . . 55-60

Vent/Air Termination - Sidewall

21-24

11. OPERATING INFORMATION

 

Determine Location

21-22

General

. . . . . . . 61

Prepare Wall Penetrations

23

Cascade

. . . . . . . 64

Termination and Fittings

23

Sequence of Operation

. . . . . . . 65-66

Multiple Vent/Air Terminations

23-24

Knight Wall Mount Boiler Control Module

. . . . . . . 67

Sidewall Termination - Optional Concentric Vent

24-26

Status Display Screens

. . . . . . . 68-70

5. VERTICAL DIRECT VENTING

 

12. MAINTENANCE

 

Vent/Air Termination - Vertical

27-28

Maintenance and Annual Startup

. . . . . . . 71-74

Determine Location

27

13. DIAGRAMS

 

Prepare Roof Penetrations

28

Ladder Diagram

. . . . . . . 75

Termination and Fittings

28

Wiring Diagram

. . . . . . . 76

Multiple Vent/Air Terminations

28

Revision Notes

Back Cover

Hazard definitions

The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product.

￿DANGER

￿WARNING

￿CAUTION CAUTION NOTICE

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

NOTICE indicates special instructions on installation, operation, or maintenance that are important but not related to personal injury or property damage.

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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 RatingDetermine boiler location Installation must comply withCloset and alcove installations Before locating the boiler, check1Closet Installation Minimum Required Clearances Wall mounting location Provide air openings to roomVent and air piping 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 to a metal studded wall Mounting the boilerMounting to a concrete wall Mounting to a wood studded wallGeneral 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 materialsApproved Stainless Steel Vent Manufacturers PVC/CPVC air intake/vent connectionsAir inlet pipe materials MakeBoiler Stainless steel ventBoiler Flue Boiler Flue Intake Air AdapterVent and air system Stainless steel air intake/vent connectionsRemoving from existing vent Vent, air piping and terminationOptional room air Model Kit Number KIT30051 Air contaminationVent/air termination sidewall If using the alternate sidewall terminationSidewall direct venting Vent Size2AClearance to Gravity Air Inlets Termination and fittings Prepare wall penetrationsPrepare wall penetrations Alternate Field Supplied Option 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 Model Grundfos Variable speed pump setupVariable speed pump option 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 PressureLine voltage connections Field wiringInstallation must comply with Low voltage connectionsFlow switch Outdoor temperature sensorLouver proving switch ThermostatSystem supply sensor Alarm contactsWiring of the cascade Boiler management systemInstallation Condensate disposal Condensate drainCheck/control water chemistry Freeze protection when usedStart-up Fill and test water systemInspect/fill condensate system Clean/Inspect Trap AssemblyCheck for gas leaks Check 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 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 control settings Check ignition ground wiringCheck all boiler wiring Check expansion tankReview with owner Check flame signalCleaning boiler heat exchanger 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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