Lochinvar 000 - 2, 495, 065 service manual Connecting Gas Piping to Unit, Gas Train and Controls

Page 17

Installation and Service Manual

The combination gas valves have an integral vent limiting device and does not require venting to atmosphere outside the building. The unit will not operate properly if the reference hose is removed or a vent to atmosphere is installed.

Optional gas controls may require routing of bleeds and vents to the atmosphere outside the building when required by local codes.

COMBINATION VALVE

DOWNSTREAM

TEST VALVE

Connecting Gas Piping to Unit

All gas connections must be made with pipe joint compound resistant to the action of liquefied petroleum (L.P.) and natural gases. All piping must comply with local codes and ordinances. Piping installations must comply with approved standards and practices.

1.Make sure gas line is a separate line direct from the meter unless the existing gas line is of sufficient capacity. Verify pipe size with your gas supplier.

2.Use new, properly threaded black iron pipe free from chips. If you use tubing, make sure the ends are square, deburred and clean. Make all tubing bends smooth and without deformation. Avoid flexible gas connections. Internal diameter of flexible lines may not provide unit with proper volume of gas.

3.Install a manual main gas shutoff valve at the unit's gas inlet, outside of the unit.

4.Run pipe or tubing to the unit's gas inlet. If you use tubing, obtain a tube to pipe coupling to connect the tubing to the unit's gas inlet.

5.Install a sediment trap in the supply line to the unit's gas inlet (see Figure 17).

6.Apply a moderate amount of good quality pipe compound (do not use Teflon tape) to pipe only, leaving two end threads bare.

7.Remove seal over gas inlet to unit.

8.Connect gas pipe to inlet of unit. Use wrench to support gas manifold on the unit.

9.For L.P. gas, consult your L.P. gas supplier for expert installation.

 

 

 

 

TO BURNERS

ADDITIONAL VALVES BASED

 

 

 

 

 

 

 

ON UNIT INPUTS

Figure 19 - Gas Train Drawing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TABLE-F

 

 

 

 

Suggested Gas Pipe Size for Single Unit Installations

 

 

 

 

 

 

Btu/hr

 

Distance From Meter (in feet)

Input

0-50

51-100 101-200

201-300

301-500

495,000

 

1 1/4"

 

1 1/2"

 

2"

 

2"

1 1/4"

 

 

 

 

 

 

 

 

 

 

 

 

645,000

1 1/4"

1 1/2"

 

2"

 

2"

 

2 1/2"

 

 

 

 

 

 

 

 

745,000

1 1/2"

2"

 

2"

 

2 1/2"

2 1/2"

 

 

 

 

 

 

 

 

 

985,000

2"

2"

 

2 1/2"

 

2 1/2"

 

3"

 

 

 

 

 

 

 

 

 

1,255,000

2"

2 1/2"

 

2 1/2"

 

3"

 

3"

 

 

 

 

 

 

 

 

 

1,435,000

2 1/2"

2 1/2"

 

3"

 

3"

 

3 1/2"

 

 

 

 

 

 

 

 

 

1,795,000

2 1/2"

3"

 

3"

 

3 1/2"

 

3 1/2"

 

 

 

 

 

 

 

 

 

2,065,000

2 1/2"

3"

 

3"

 

3 1/2"

 

4"

 

 

 

 

 

 

 

 

 

For each elbow or tee, add equivalent straight pipe to total length from table below.

Gas Train and Controls

Note: The gas train and controls assembly provided on this unit have been tested under the applicable American National Standard to meet minimum safety and performance criteria such as safe lighting, combustion and safety shutdown operation.

Figure 19 shows a typical gas train.

10.Ensure that all air is properly bled from the gas line before starting the ignition sequence. Start up without properly bleeding air from the gas line may require multiple reset functions of the ignition control module to achieve proper ignition.

￿WARNING: Do not have any open flame in proximity to the gas line when bleeding air from the gas line. Gas may be present.

TABLE-G

Fittings to Equivalent Straight Pipe

 

 

Diameter Pipe (inches)

 

 

 

3/4

1

1 1/4

1 1/2

2

3

4

5

 

 

 

 

Equivalent Length of Straight Pipe (feet)

 

2

2

3

4

5

10

14

20

 

 

 

 

 

 

 

 

TABLE-F

17

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Contents Save this manual for future reference Domestic Water HeatersHydronic Heating Boilers and Domestic Water Heaters General Product Information Safety InformationHydronic Heating Boilers and Domestic Water Heaters Front and Rear View Product IdentificationBase for Combustible Floors InstallationClearances from Combustible Construction Hydronic System Antifreeze Outdoor Boiler InstallationShut-Down and Draining Pump OperationCombustion Air Filter Installing Combustion Air FilterFreeze Protection for a Heating Boiler System if required One Opening Combustion Air OptionsGeneral Information Installation VentingExhaust Fans Venting SupportTABLE-A Table B Vent System OptionsFlue Pipe Sizes TABLE-CNegative Draft Conventional Negative Draft VentingFlue Outlet Piping Common Venting SystemsMasonry Chimney Installations Outdoor Installation VentingOutdoor Vent Kits Table DOutdoor Vent/Air Inlet Location Outdoor Vent KitInput Max Min Gas Pressure TestGas Piping Gas Train and Controls Connecting Gas Piping to UnitVenting of Combination Gas Valves Combination Gas ValvesChecking Gas Supply Pressure Measuring Gas Supply Pressure at Combination Gas Valve Gas Manifold Pressure AdjustmentRegulator Pressure Less Front Chamber Pressure NET Manifold PressureLow Water Cutoff Water Flow SwitchRelief Valve If EquippedNominal AMP Draw Data Terminal Strip Connection OptionsTable J General Plumbing Rules Water Connections Heating Boilers OnlyPrimary/Secondary Boiler Piping Input LTV Valve Kit Btu/hr Low Temperature Return Water SystemsRadiant Floor and Snow Melt Heating Systems System Temperature Rise Chart Based on Btu/hr Input Installation with a Chilled Water SystemTable L 10ºF 20ºF 30ºF 40ºF 50ºF 60ºFBoiler Flow Rate Temperature/Pressure GaugeBoiler Bypass Requirements Filling the SystemLighting Instructions OperationTo Turn Off Gas To Appliance Locating Temperature ControlTable M Temperature Control SettingsSet Point Maximum Set Point DeterminationHigh-Fire Offset Outdoor Air Reset OptionShutdown Outdoor Air Max O.A. MaxPlacement of Sensors Temperature Control SensorsBoiler Application Water Heater ApplicationWire Maximum Gauge Remote Wire ConnectionHot Surface Igniter and Ignition Control Module Table NHot Surface Ignition Control Module Diagnostic Status IndicationIgnition and Control Timings Ignition Module Lockout FunctionsTable P Status LED Diagnostic CodesTable O Temperature Rise Chart Required Temperature RiseDomestic Water Heaters Water Velocity ControlWater Chemistry Pipe Sizing ChartCirculating Pump Table RDomestic Water Temperatures Potable Hot Water Temperature Control SettingsDomestic Water Minimum Pump PerformanceLocation of Cold Water Supply Piping Connections High Water Temperature Limit ControlOptional Relief Valve Thermal ExpansionFlue Gas Passageways Cleaning Procedures Cleaning MaintenanceCombustion and Ventilation Air Heat Exchanger CleaningElectrical Adjustment Procedure 495,000 1,255,000 Btu/hr Models Cleaning and MaintenanceSet Up Procedure Servicing Hot Surface Igniter and Ignition Module Ignition System Checkout Sequence of OperationON/OFF Rocker Switch Power SupplyManual Reset High-Limit Thermostat Safety Device TerminalsHeat Transfer Process Gas Valves, Burner Electronic Temperature ControllerIgnition Module BTU/HR Schematic DiagramHI-LIMITS PWR SW Main Unit GAS Valves Blower Pressure Switch 15AMPS Wiring DiagramControl BOX Connections Control BOX Connections

000 - 2, 065, 495 specifications

Lochinvar 000 - 2,495,065 is a cutting-edge water heating solution designed to meet the needs of modern residential and commercial applications. This high-efficiency unit combines advanced engineering with robust technologies, providing unmatched performance and reliability.

One of the standout features of the Lochinvar 000 - 2,495,065 is its high thermal efficiency, which often exceeds 95%. Utilizing condensing technology, the unit harnesses heat from exhaust gases, allowing it to recover otherwise lost energy, thereby reducing operational costs significantly. This efficiency not only lowers energy bills for users but also lessens the environmental impact by minimizing greenhouse gas emissions.

The Lochinvar 000 - 2,495,065 is equipped with a lightweight stainless steel heat exchanger. This construction ensures exceptional corrosion resistance and longevity, extending the lifespan of the unit while maintaining optimal performance. The stainless steel design also contributes to faster heating times, making it ideal for high-demand environments.

In terms of control technologies, the Lochinvar 000 - 2,495,065 features an intuitive touchscreen interface. This user-friendly design allows for seamless operation, real-time monitoring, and easy adjustments to temperature settings. Additionally, it facilitates remote diagnostics, promoting efficient maintenance and reducing downtime, which is crucial for busy facilities.

For enhanced safety, the Lochinvar 000 - 2,495,065 includes multiple safety mechanisms, such as over-temperature protection, flame safeguard, and leak detection systems. These safety features ensure secure operation and give users peace of mind.

Moreover, the unit is compatible with various fuel sources, including natural gas and propane, making it versatile and adaptable to different infrastructure requirements. This flexibility ensures that the Lochinvar 000 - 2,495,065 can be integrated into various settings, from residential homes to large commercial buildings.

Another significant characteristic is its compact design, allowing for easy installation in tight spaces. The footprint of the Lochinvar 000 - 2,495,065 makes it an ideal solution for applications where space is at a premium, without compromising on performance.

In summary, Lochinvar 000 - 2,495,065 represents a premium choice for water heating solutions, merging advanced technologies, high efficiency, and user-friendly design to cater to a wide range of heating needs while ensuring safety and sustainability.
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