Hydronic Heating Boilers and Domestic Water Heaters

INSTALLATION

Continued

Figure 21 - Measuring Manifold Gas Pressure

2.Turn the power switch located in the lower left corner behind the control panel access door to the “O” or “OFF” position.

3.Remove the top front jacket access panels to access the gas valve(s).

4.Locate the reference hose on the first gas valve which goes from the vent fitting on the gas valve to the barbed fitting on the deck of the unit (see Figure 21).

5.Remove the flexible cap from the barbed fitting on the "tee" located in this line and hook one side of the manometer, or (-) side of a magnahelic gauge, to this "tee". Retain this cap for future use.

6.Remove the 1/8" hex plug from the manifold pressure tap on the gas valve (see Figure 21). Retain plug for future use.

7.Install a fitting in this tap that is suitable for connection of a hose to a manometer, or (+) side of a magnahelic gauge (see Figure 21).

8.Turn the power switch to the “I” or “ON” position.

9.Push the reset button(s) for the ignition control(s), if necessary.

10.Set the temperature control to call for heat (see Setting Temperature Control, page 29).

11.Once the unit is firing, the manometer/magnahelic will reflect the net manifold gas pressure. Compare this reading to the respective value in TABLE-I for Natural Gas or Propane Gas.

12.If adjustment is necessary, remove the regulator cover screw on the gas valve. Note: If the gas valve under adjustment is located on a manifold assembly monitored by an igniter, the unit may shut down and recycle when the regulator cover screw is removed. This is normal.

13.Turn the regulator adjustment screw “clockwise” to raise the regulator gas pressure. Turn the regulator adjustment screw “counterclockwise” to lower the regulator gas pressure.

14.Replace the regulator cover screw and make sure it is tight for proper operation.

15.Read the value on the manometer/magnahelic and compare it to the values in TABLE-I.

16.Repeat this adjustment procedure for each gas valve as necessary to adjust to the proper manifold gas pressure.

17.Remove hoses, replace and tighten plugs and caps when complete.

18.Replace top front upper jacket access panels and control panel door in reverse order.

19.If proper ignition and burner operation is not achieved after checking gas supply pressure, see Cleaning and Maintenance, page 41 for Combustion Air Fan Adjustment. Follow the procedure to adjust the combustion air fans as necessary.

TABLE - I

NET MANIFOLD PRESSURE

Regulator Pressure Less

Front Chamber Pressure

Nat. Gas (495,000

- 745,000 Btu/hr)

1.8" w.c.

 

 

 

Nat. Gas (985,000

- 2,065,000 Btu/hr)

1.2" w.c.

 

 

LP Gas (495,000 - 2,065,000 Btu/hr)

4.6" w.c.

 

 

 

TABLE-H

CONNECTING TO WATER SUPPLY

Inlet and Outlet Connections

For ease of service, install unions on the water inlet and water outlet of the unit. The connection to the unit marked “Inlet” on the header should be used for return from the system. The connection on the header marked “Outlet” is to be connected to the supply side of the system.

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Lochinvar 000 - 2, 495, 065 service manual NET Manifold Pressure, Regulator Pressure Less Front Chamber Pressure
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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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