Lochinvar 5 Inspect ignition and flame sense electrodes, Check ignition ground wiring

Page 60

11 Maintenance

Inspect ignition and flame sense electrodes

1.Remove the ignition and flame sense electrodes from the boiler heat exchanger access covers.

2.Remove any deposits accumulated on the ignition/ flame sense electrode using sandpaper. If the electrodes cannot be cleaned satisfactorily, replace with new ones.

3.Replace ignition/flame sense electrodes, making sure the gaskets are in good condition and correctly positioned.

Check ignition ground wiring

1.Inspect boiler ground wire from the heat exchanger access cover to ground terminal strip.

2.Verify all wiring is in good condition and securely attached.

3.Check ground continuity of wiring using continuity meter.

4.Replace ground wires if ground continuity is not satisfactory.

Check all boiler wiring

1.Inspect all boiler wiring, making sure wires are in good condition and securely attached.

Check control settings

1.Set the control module display to Parameter Mode and check all settings. See Section 1 of the SYNC Service Manual. Adjust settings if necessary. See Section 1 of the SYNC Service Manual for adjustment procedures.

2.Check settings of external limit controls (if any) and adjust if necessary.

Perform start-up and checks

1.Start boiler and perform checks and tests specified in Section 9 - Start-up.

2.Verify cold fill pressure is correct and that operating pressure does not go too high.

60

Installation & Operation Manual

Check burner flame

1.Inspect flame through observation window.

2.If the flame is unsatisfactory at either high fire or low fire, turn off boiler and allow boiler to cool down. Remove the burners and clean them thoroughly using a vacuum cleaner or compressed air. Do not use compressed air to clean burners if performed inside a building.

3.Remove the burners, reference FIG. 11-2.

4.When replacing the burners, ensure gaskets are in good condition and positioned correctly (FIG. 11-2).

Figure 11-2Burner Assembly

DOOR FIBER

 

BURNER DOOR

 

 

BURNER DOOR

 

 

HEX NUT (6)

 

 

BURNER

 

AIR/GAS GASKET

 

 

FLAPPER VALVE

 

IGNITER GASKET

SCREW (5X)

IGNITER

FLAME SENSE

 

FLAPPER VALVE

 

 

GASKET

 

FLAME SENSE

 

IGNITER SCREW (2X)

 

FLAME SENSE

 

 

SCREW (2X)

 

Check flame signal

1.At high fire the flame signal shown on the display should be at least 10 microamps.

2.A lower flame signal may indicate a fouled or damaged flame sense electrode. If cleaning the flame sense electrode does not improve, ground wiring is in good condition, and ground continuity is satisfactory, replace the flame sense electrode.

3.See Section 3 - Troubleshooting in the SYNC Service Manual for other procedures to deal with low flame signal.

Review with owner

1.Review the SYNC User’s Information Manual with the owner.

2.Emphasize the need to perform the maintenance schedule specified in the SYNC User’s Information Manual (and in this manual as well).

3.Remind the owner of the need to call a licensed contractor should the boiler or system exhibit any unusual behavior.

4.Remind the owner to follow the proper shutdown procedure and to schedule an annual start-up at the beginning of the next heating season.

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Contents Save this manual for future reference Contents When servicing boiler Please read before proceedingSync How it works BlowersModels 1.0 1.3 Ratings SyncInstallation must comply with Closet and alcove installationsDetermine boiler location Before locating the boiler, check1Closet Installation Minimum Required Clearances Provide air openings to room Prevent combustion air contaminationFlooring and foundation When 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 Remove boiler from wood pallet5Combustion Air Through Ducts Minimum Recommended Combustion AIR Supply to Equipment Room General venting Direct venting options Sidewall VentDirect venting options Vertical Vent Install vent and combustion air piping Air intake/vent connectionsRequirements for installation in Canada SizingMaterials Air inlet pipe materialsOptional room air Material Standard Vent pipeVent fittings PrimerPolypropylene Centrotherm InnoFlue SW Duravent PolyproStainless steel vent Supplied with the vent systemSidewall direct venting Vent/air termination sidewallDetermine location 2B Alternate Clearance to Gravity Air Inlets Prepare wall penetrations Found in this manualPrepare wall penetrations Alternate Field Supplied Options Multiple vent/air terminationsVertical direct venting Vent/air termination verticalPrepare roof penetrations 3Vertical Terminations with Multiple Boilers Hydronic piping Near boiler piping connections Circulator sizingHot Water Generator pump sizing ExampleNear boiler piping components 5Single Boiler Primary/Secondary Piping Model Number of Units Manifold Pipe Sizes in Inches mm Connecting gas supply piping Gas connectionsNatural gas Propane GasGAS Piping Size Chart Check inlet gas supplyGas valve replacement Gas PressureField wiring Installation must comply withLine voltage connections Enable Outdoor temperature sensorLouver proving switch Flow switch field suppliedSystem supply sensor Wiring of the cascade Alarm contactsBoiler management system Runtime contacts3Low Voltage Field Wiring Connections Condensate disposal Condensate drainFreeze protection when used Start-upCheck/control water chemistry Fill and test water systemCheck for gas leaks Check thermostat circuitsInspect/fill condensate system Inspect/check condensate lines and fittingsFinal checks before starting the boiler Start the boilerIf boiler does not start correctly Check system and boilerFor Your Safety Read Before Operating Set space heating operation Natural Gas PropaneConfiguration of the cascade Set Hot Water Generator HW operationOperating information GeneralProtection features Boiler temperature regulation Outdoor reset operation, if usedCascade Sequence of the cascade HW operation with cascadeNight Setback operation with cascade Sequence of operation Sync control module 1Status ScreenOperating information 2Main Menu Screen Maintenance Maintenance and annual startup Service technicianOwner maintenance See the Sync User’s Information Manual for InstructionsMaintenance Flue vent system and air piping Check water systemCheck expansion tank Check boiler relief valveCheck ignition ground wiring Check all boiler wiringCheck control settings Check flame signalCleaning boiler heat exchanger Model Kit Part Component Number DescriptionHandling ceramic fiber materials Niosh stated First AidDiagrams LOW Voltage 120 VAC High Voltage2Ladder DiagramPart 3Wiring Diagram Page
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5 specifications

Lochinvar 5 is a cutting-edge residential boiler designed to meet the heating needs of modern homes while ensuring high efficiency and user convenience. As one of the latest offerings from Lochinvar, a trusted name in the heating industry, the Lochinvar 5 combines advanced technology with robust features that make it a top choice for homeowners and contractors alike.

One of the standout characteristics of the Lochinvar 5 is its impressive energy efficiency. It boasts an AFUE (Annual Fuel Utilization Efficiency) rating of up to 95%, which significantly reduces fuel consumption compared to traditional heating systems. This not only translates to lower energy bills for homeowners but also minimizes the environmental impact, aligning with the growing demand for sustainable energy solutions.

The Lochinvar 5 employs a highly efficient modulating burner technology that optimizes fuel usage based on real-time heating demand. This ensures that the boiler operates at peak efficiency, providing consistent warmth without unnecessary energy waste. The inclusion of advanced controls further enhances its performance, allowing users to adjust settings easily and monitor usage through a user-friendly digital display.

Durability and reliability are also paramount in the design of the Lochinvar 5. Constructed with high-quality materials, this boiler is built to withstand the rigors of daily use and provide long-lasting performance. Its compact design allows for flexible installation options, making it suitable for various residential settings, even where space is limited.

In addition to its impressive performance metrics, Lochinvar 5 is equipped with smart technology features that cater to the needs of modern consumers. Wi-Fi connectivity enables remote monitoring and control via a mobile app, giving homeowners the ability to adjust settings on the go. This feature not only enhances user convenience but also allows for proactive maintenance and alerts, helping to prevent potential issues before they arise.

Safety is a key consideration in the design of Lochinvar 5. It includes multiple safety features, such as a sealed combustion system that minimizes the risk of carbon monoxide leaks and an advanced monitoring system that ensures optimal operating conditions at all times.

In conclusion, the Lochinvar 5 stands out as an exceptional choice for those seeking a reliable, efficient, and smart residential heating solution. Its combination of advanced technologies, user-friendly features, and robust construction make it a leading option in the boiler market, ready to meet the demands of today’s homeowners. With an eye on energy efficiency and ease of use, Lochinvar 5 is well-equipped to provide comfortable, cost-effective heating for years to come.
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