Lochinvar 151 Check water system, Check expansion tank, Check water heater relief valve

Page 69

12 Maintenance (continued)

Installation & Operation Manual

￿WARNING Failure to inspect for the above conditions and have them repaired can result in

severe personal injury or death.

Check water system

1.

Verify all system components are correctly installed and

 

operational.

2.

Check the cold fill pressure for the system. Verify it is

 

correct (must be a minimum of 12 PSI).

3.

Watch the system pressure as the water heater heats up

 

(during testing) to ensure pressure does not rise too high.

 

Excessive pressure rise indicates expansion tank sizing or

 

performance problem.

4.

Inspect automatic air vents and air separators. Remove

 

air vent caps and briefly push valve to flush vent. Replace

￿WARNING

Following installation, the valve lever must be operated AT LEAST ONCE A YEAR to ensure that waterways are clear. Certain naturally occurring mineral deposits may adhere to the valve, rendering it inoperative. When manually operating the lever, water will discharge and precautions must be taken to avoid contact with hot water and to avoid water damage. Before operating lever, check to see that a discharge line is connected to this valve directing the flow of hot water from the valve to a proper place of disposal. Otherwise severe personal injury may result. If no water flows, valve is inoperative. Shut down the water heater until a new relief valve has been installed.

caps. Make sure vents do not leak. Replace any leaking

vents.

Check expansion tank

1.Expansion tanks provide space for water to move in and out as the heating system water expands due to temperature increase or contracts as the water cools. Tanks may be open, closed or diaphragm or bladder type. See Section 6 - System Piping for suggested best location of expansion tanks and air eliminators.

Check water heater relief valve

1.Inspect the relief valve and lift the lever to verify flow. Before operating any relief valve, ensure that it is piped with its discharge in a safe area to avoid severe scald potential. Read Section 6 - System Piping before proceeding further.

2.After following the above warning directions, if the relief valve weeps or will not seat properly, replace the relief valve. Ensure that the reason for relief valve weeping is the valve and not over-pressurization of the system due to expansion tank waterlogging or undersizing.

Inspect ignition and flame sense electrodes

1.Remove the ignition and flame sense electrodes from the water heater heat exchanger access cover.

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 electrode, making sure gasket is in good condition and correctly positioned.

Check ignition ground wiring

￿WARNING

Safety relief valves should be re-inspected

AT LEAST ONCE EVERY THREE YEARS, by a licensed plumbing contractor or authorized inspection agency, to ensure that the product has not been affected by corrosive water conditions and to ensure that the valve and discharge line have not been altered or tampered with illegally. Certain naturally occurring conditions may corrode the valve or its components over time, rendering the valve inoperative. Such conditions are not detectable unless the valve and its components are physically removed and inspected. This inspection must only be conducted by a plumbing contractor or authorized inspection agency

not by the owner. Failure to re-inspect the water heater relief valve as directed could result in unsafe pressure buildup, which can result in severe personal injury, death, or substantial property damage.

1.Inspect water heater 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 water heater wiring

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

Check control settings

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

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

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Contents What to do if YOU Smell GAS Installation&OperationManual Models 151Contents Please read before proceeding When servicing the water heaterStainless steel heat exchanger Armor Water Heater How it worksModels 151 Models 601 Models 400CSA RatingsCloset and alcove installations Installation must comply withDetermine water heater location Before locating the water heater, check1Closet Installation Minimum Required Clearances Provide air openings to room Residential garage installationVent and air piping Flooring and foundationAreas likely to have contaminants Products to avoidDetermine water heater location Gas conversions Prepare water heaterRemove water heater from wood pallet Models 151Model 3Installing Propane Orifice ModelLeveling the water heater Models 601Direct 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 or air piping PVC/CPVC Vent piping materialsVent Pipe, and Fittings PVC/CPVC Air intake/vent connectionsStainless steel vent Air inlet pipe materialsFlue Stainlesssteelairintake/ventconnectionsFlue Intake Air Adapter Termination Model Kit NumberRemoving from existing vent Model Air Intake VentVent and air system Vent, air piping and termination Optional room airModel Kit Number Description Air contaminationSidewall direct venting If using the alternate sidewall terminationVent/air termination sidewall Determine location3AClearance to Gravity Air Inlets Seal all wall cavities Prepare wall penetrationsPrepare wall penetrations Alternate Field Supplied Option Multiple vent/air terminationsTermination and fittings Sidewall termination installation Sidewall termination optional concentric vent Models 151Description and usage 11 Concentric Multiventing sidewall terminations 13Concentric Vent Sidewall AttachmentVent/air termination vertical Vertical direct ventingMultiple vent/air terminations Prepare roof penetrationsVertical termination optional concentric vent Models 151 Vertical termination installationMinimum Combustion AIR Typical Multiventing vertical terminationsConcentric Venting Arrangement Alternate vertical concentric venting10Existing Vent as a Chase Existing vent as a chaseFlow switch adjustment Flow switch and relief valve installationSystem piping System water piping methodsScalding Piping componentsWater chemistry 4Single Heater Single Tank 2 Temperature Cold Water Supply Cold Water Supply Number of Units Model 8Double Heater Double Tank Gas connections Connecting gas supply pipingPropane gas Natural gasSingle Unit Natural 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 Tank thermostat Low gas pressure switchHigh gas pressure switch Flow switchAlarm contacts Wiring of the cascadeRuntime contacts 3Low Voltage Field Wiring Connections Condensate drain Condensate disposalCheck for gas leaks Inspect/fill condensate system Start-upChlorine concentration less than 200 ppm Inspect/check condensate lines and fittingsStart the water heater Final checks before starting the water heaterIf water heater does not start correctly Check system and water heaterFor Your Safety Read Before Operating 3Operating Instructions Models 400 Verify WHR circulator mode Set tank set point temperatureSet water heater operation Natural Gas PropaneSet clock Configuration of the cascadeGeneral Operating informationWater heater temperature regulation Cascade InstallerSequence of the cascade UserOperation Display Sequence of operation1Control Panel Armor water heater control moduleWater heater Information Dial Function Maintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Check all water heater wiring Check ignition ground wiringCheck control settings Check water systemCleaning heat exchanger Check flame signalPerform start-up and checks Check burner flameCheck Delta T Oiled bearing circulatorsModel Kit Part Component Number Description PC Interface Diagrams2Wiring Diagram Page Page AWII-I-O Rev C
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151 specifications

Lochinvar 151,286 is a notable model in the realm of commercial water heating solutions, designed primarily for large-scale applications. This model incorporates advanced technologies and features that set it apart in terms of efficiency, usability, and reliability.

One of the hallmark features of Lochinvar 151,286 is its high-efficiency system that leverages condensing technology. This technology enables the unit to extract additional heat from exhaust gases, allowing it to operate at an impressive annual fuel utilization efficiency (AFUE) rating. This not only reduces energy consumption, but it also significantly lowers operational costs.

The Lochinvar 151,286 is equipped with a robust stainless steel heat exchanger, which provides both durability and enhanced thermal efficiency. This design withstands the rigors of high-demand environments, making it ideal for restaurants, schools, hospitals, or any facility requiring consistent hot water supply. Its compact footprint allows it to be installed in tight spaces without sacrificing performance.

Another standout characteristic is its intelligent control system. The built-in touchscreen interface offers users an intuitive way to manage settings, monitor performance, and troubleshoot issues. This smart technology aids in simplifying maintenance and improves overall system reliability. The unit also features advanced safety protocols, including multiple sensors that monitor operation and provide alerts in case of irregular performance.

In terms of capacity, the Lochinvar 151,286 can deliver an impressive output, accommodating varying demands with ease. Its innovative modulation capabilities allow the unit to adjust its heating output based on real-time hot water needs, ensuring unmatched comfort and efficiency.

Supporting the model’s performance are versatile connectivity options. Lochinvar 151,286 can integrate seamlessly with building management systems, allowing facility managers to monitor and control heating processes remotely. This level of connectivity not only enhances control but also supports energy-saving strategies across the facility.

In conclusion, Lochinvar 151,286 stands out as a premium choice for commercial water heating needs. With its high-efficiency ratings, durable construction, intelligent control system, impressive capacity, and versatile connectivity, it ensures that hot water is delivered reliably and efficiently, meeting the demands of modern businesses while reducing energy costs. This combination of technology and design makes it an essential component for any large-scale facility focused on performance and sustainability.