Lochinvar 151 operation manual Gas connections, Connecting gas supply piping

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7 Gas connections

Connecting gas supply piping

1.Remove the top access panel and refer to FIG.’s 7-1 thru 7-4 to pipe gas to the water heater.

a.Install ground joint union for servicing, when required.

b.On Models 151 - 400 install a manual shutoff valve in the gas supply piping outside water heater jacket when required by local codes or utility requirements.

c.In Canada – When using manual main shutoff valves, it must be identified by the installer.

2.Install sediment trap / drip leg.

Figure 7-1Gas Supply Piping - Models 151 - 200

UNION

GAS SUPPLY

DRIP LEG

MANUAL

SHUT OFF

VALVE

Installation & Operation Manual

Figure 7-3Gas Supply Piping - Model 501

UNION (FACTORY INSTALLED)

MANUAL SHUTOFF VALVE (FACTORY SUPPLIED)

GAS SUPPLY

SEDIMENT TRAP/

DRIP LEG

Figure 7-4Gas Supply Piping - Models 601 - 801

UNION (FACTORY INSTALLED)

MANUAL SHUTOFF VALVE (FACTORY SUPPLIED)

GAS SUPPLY

SEDIMENT TRAP/

DRIP LEG

3.Support piping with hangers, not by the water heater or its accessories.

Figure 7-2Gas Supply Piping - Models 286 - 400

￿WARNING

The gas valve and blower will not support the weight of the piping. Do not attempt to support the weight of the piping with the water heater or its accessories. Failure to comply could result in severe personal injury, death, or substantial property damage.

SEDIMENT TRAP / DRIP LEG

44

4.Purge all air from the gas supply piping.

5.Before placing the water heater in operation, check the water heater and its gas connection for leaks.

a.The appliance must be disconnected from the gas supply piping system during any pressure testing of that system at a test pressure in excess of 1/2 PSIG (3.5 kPa).

b.The appliance must be isolated from the gas supply piping system by closing a manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 PSIG (3.5 kPa).

c.The appliance and its gas connection must be leak tested before placing it in operation.

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Contents Installation&OperationManual Models 151 What to do if YOU Smell GASContents When servicing the water heater Please read before proceedingArmor Water Heater How it works Stainless steel heat exchangerModels 151 Models 400 Models 601Ratings CSAInstallation must comply with Closet and alcove installationsDetermine water heater location Before locating the water heater, check1Closet Installation Minimum Required Clearances Residential garage installation Provide air openings to roomVent and air piping Flooring and foundationProducts to avoid Areas likely to have contaminantsDetermine water heater location Prepare water heater Gas conversionsRemove water heater from wood pallet Models 1513Installing Propane Orifice Model ModelModels 601 Leveling the water heaterGeneral venting Direct venting options Sidewall VentDirect venting options Vertical Vent Direct venting options Vertical Vent, Sidewall AirInstall vent and combustion air piping Requirements for installation in CanadaInstalling vent or air piping PVC/CPVC Vent piping materialsPVC/CPVC Air intake/vent connections Vent Pipe, and FittingsAir inlet pipe materials Stainless steel ventStainlesssteelairintake/ventconnections FlueFlue Intake Air Adapter Termination Model Kit NumberVent and air system Removing from existing ventModel Air Intake Vent Optional room air Vent, air piping and terminationModel Kit Number Description Air contaminationIf using the alternate sidewall termination Sidewall direct ventingVent/air termination sidewall Determine location3AClearance to Gravity Air Inlets Prepare wall penetrations Seal all wall cavitiesTermination and fittings Prepare wall penetrations Alternate Field Supplied OptionMultiple vent/air terminations Description and usage Sidewall termination installationSidewall termination optional concentric vent Models 151 11 Concentric 13Concentric Vent Sidewall Attachment Multiventing sidewall terminationsVertical direct venting Vent/air termination verticalPrepare roof penetrations Multiple vent/air terminationsVertical termination installation Vertical termination optional concentric vent Models 151Multiventing vertical terminations Minimum Combustion AIR TypicalAlternate vertical concentric venting Concentric Venting ArrangementExisting vent as a chase 10Existing Vent as a ChaseFlow switch and relief valve installation Flow switch adjustmentSystem piping System water piping methodsWater chemistry ScaldingPiping components 4Single Heater Single Tank 2 Temperature Cold Water Supply Cold Water Supply Number of Units Model 8Double Heater Double Tank Connecting gas supply piping Gas connectionsNatural gas Propane gasLength of Pipe in Straight Feet for 1/2 PSI Single Unit Natural Gas Pipe Capacity ChartCheck inlet gas supply Gas valve replacement Gas pressureField wiring Installation must comply withLine voltage connections Low voltage connectionsTank thermostat Low gas pressure switch Louver proving switchHigh gas pressure switch Flow switchRuntime contacts Alarm contactsWiring of the cascade 3Low Voltage Field Wiring Connections Condensate disposal Condensate drainStart-up Check for gas leaks Inspect/fill condensate systemChlorine concentration less than 200 ppm Inspect/check condensate lines and fittingsFinal checks before starting the water heater Start the water heaterIf water heater does not start correctly Check system and water heaterFor Your Safety Read Before Operating 3Operating Instructions Models 400 Set tank set point temperature Verify WHR circulator modeSet water heater operation Natural Gas PropaneConfiguration of the cascade Set clockOperating information GeneralWater heater temperature regulation Installer CascadeSequence of the cascade UserSequence of operation Operation DisplayArmor water heater control module 1Control PanelWater heater Information Dial Function Owner maintenance Maintenance Maintenance and annual startupService technician Maintenance Check ignition ground wiring Check all water heater wiringCheck control settings Check water systemCheck flame signal Cleaning heat exchangerPerform start-up and checks Check burner flameModel Kit Part Component Number Description Check Delta TOiled bearing circulators Diagrams PC Interface2Wiring 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.
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