Lochinvar 51 Final checks before starting the boiler, Start the boiler, Check system and boiler

Page 57

Installation & Operation Manual

10 Start-up(continued)

Final checks before starting the boiler

￿Read the Knight Wall Mount Service Manual to familiarize yourself with SMART SYSTEM control module operation. Read this manual, page 58 for proper steps to start boiler.

￿Verify the boiler and system are full of water and all system components are correctly set for operation.

￿Verify the preparation procedures of Section 10, pages 55 and 56 have been completed.

￿Fill the vent condensate trap with water (removing the retaining screw in order to remove the 2 inch PVC cap with the switch located at the top of the trap). Replace the cap. Press the cap onto the trap until the cap makes contact with the drain. Replace the retaining screw.

￿Verify electrical connections are correct and securely attached.

￿Inspect vent piping and air piping for signs of deterioration from corrosion, physical damage or sagging. Verify air piping and vent piping are intact and correctly installed per this manual.

￿Check vent piping and air piping

1.Check for gastight seal at every connection, seam of air piping, and vent piping.

￿WARNING Venting system must be sealed gastight to prevent flue gas spillage and carbon

monoxide emissions, which will result in severe personal injury or death.

￿Check gas piping

1.Check around the boiler for gas odor following the procedure on page 46 of this manual (connecting gas supply piping).

￿ WARNING

If you discover evidence of any gas leak, shut

 

down the boiler at once. Find the leak source

 

with a bubble test and repair immediately.

 

Do not start the boiler again until corrected.

 

Failure to comply could result in severe

 

personal injury, death, or substantial

 

property damage.

￿Propane boilers – verify conversion

1.Verify propane conversion has been completed per the Propane Conversion instructions.

Start the boiler

1.Read and follow the Operating instructions in FIG. 10-2, page 58.

If boiler does not start correctly

1.

Check for loose connections, blown fuse or service switch

 

off?

2.

Is boiler water temperature above 200°F?

3.

Is thermostat set below room temperature?

￿WARNING

DO NOT adjust or attempt to measure gas valve outlet pressure. The gas valve is factory-set for the correct outlet pressure. This setting is suitable for natural gas and propane, requiring no field adjustment. Attempting to alter or measure the gas valve outlet pressure could result in damage to the valve, causing potential severe personal injury, death, or substantial property damage.

4.

Is gas turned on at meter or boiler?

5.

Is incoming gas pressure less than 4 inches w.c.?

If none of the above corrects the problem, refer to the Troubleshooting Section of the Knight Wall Mount Service Manual.

Check system and boiler

￿WARNING

Knight wall mount boilers are typically shipped ready to fire on natural gas. Check boiler rating plate to determine which fuel the boiler is set for. If set to natural gas, it may be converted to LP by installing an orifice (see page 13). In order to operate on LP gas, an orifice MUST BE installed. Failure to comply could result in severe personal injury, death, or substantial property damage.

￿Check water piping

1.Check system piping for leaks. If found, shut down the boiler and repair immediately. (See WARNINGS on pages 55 and 56 (startup) regarding failure to repair leaks.)

2.Vent any remaining air from the system using manual vents. Air in the system will interfere with circulation and cause heat distribution problems and noise.

Check flame and combustion

1.Turn the main power off to the boiler.

2.Remove the flue temperature sensor from the flue pipe connection. Note: Combustion measurements will be made at this point.

3.Turn the main power on to the boiler.

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Contents Models 51 Contents Please read before proceeding When servicing boilerStainless steel heat exchanger Knight Wall Mount Boiler How it worksModels 51 Knight Wall Mount Boiler =B=R Rating RatingsCloset and alcove installations Installation must comply withDetermine boiler location Before locating the boiler, check1Closet Installation Minimum Required Clearances Vent and air piping Provide air openings to roomWall mounting location Prevent combustion air contaminationWhen using an existing vent system to install a new boiler Products to avoidAreas likely to have contaminants When removing a boiler from existing common vent system Prepare boiler Remove boiler from wood palletGas conversions Mounting to a concrete wall Mounting the boilerMounting to a metal studded wall Mounting to a wood studded wallDirect 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 materialsAir inlet pipe materials PVC/CPVC air intake/vent connectionsApproved Stainless Steel Vent Manufacturers MakeBoiler Flue Stainless steel ventBoiler Boiler Flue Intake Air AdapterRemoving from existing vent Stainless steel air intake/vent connectionsVent and air system Vent, air piping and terminationModel Kit Number KIT30051 Air contamination Optional room airSidewall direct venting If using the alternate sidewall terminationVent/air termination sidewall Vent Size2AClearance to Gravity Air Inlets Prepare wall penetrations Alternate Field Supplied Option Prepare wall penetrationsTermination and fittings Multiple vent/air terminationsSidewall termination installation Sidewall termination optional concentric ventDescription and usage Sidewall termination optional concentric vent models 8Concentric Vent Dimensional DrawingMultiventing sidewall terminations 10Concentric Vent Sidewall AttachmentVent/air termination vertical Vertical direct venting2Vertical Terminations with Multiple Boilers Prepare roof penetrationsVertical termination optional concentric vent Vertical termination installationMinimum Combustion AIR Typical Multiventing vertical terminationsConcentric Venting Arrangement Alternate vertical concentric ventingAIR Inlet Flue Exhaust Seal CAP Existing Flue Outlet Existing vent as a chaseHydronic piping Near boiler piping components Circulator sizing Near boiler piping connectionsModel Minimum Pipe Pump Size GrundfosArmstrong Variable speed pump option Variable speed pump setupModel Grundfos 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 Gas connections Connecting gas supply pipingPropane Gas Natural gasNatural Gas Pipe Capacity Chart Check inlet gas supplyLength 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 sensorFlow switch ThermostatWiring of the cascade Alarm contactsSystem supply sensor Boiler management systemInstallation Condensate drain Condensate disposalStart-up Freeze protection when usedCheck/control water chemistry Fill and test water systemCheck for gas leaks Check thermostat circuits Clean/Inspect Trap AssemblyInspect/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 operationVerify DHW mode Configuration of the cascadeSet domestic hot water DHW operation General Operating informationProtection features Boiler temperature regulation Cascade Outdoor reset operation, if usedOperation Display Sequence of operationAccess modes InstallerUser 1Control Panel Knight wall mount boiler control moduleCall for Heat Information Right Select no Maintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Check all boiler wiring Check ignition ground wiringCheck control settings Check expansion tankCleaning boiler heat exchanger Check flame signalReview with owner Oiled bearing circulatorsPC Interface Diagrams2Wiring 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.