Gas Pressure Test, Gas Piping, Input Max Min

Hydronic Heating Boilers and Domestic Water Heaters

INSTALLATION

Continued

CONNECTING TO GAS SUPPLY

Only supply the gas type specified on the unit's rating plate. This unit is orificed for operation up to 2000 feet altitude. If installing above 2000 feet elevation, consult the appliance manufacturer.

INLET PRESSURE: Measure inlet pressure at the inlet pressure tap located upstream of the combination gas valve(s).

See TABLE-E for maximum and minimum inlet pressures. Do not exceed the maximum. Minimum inlet pressure is for the purposes of input adjustment.

TABLE - E

Inlet Pressure

Input	Max.	Min.
495,000 - 745,000 Btu/hr
Nat. Gas	10.5" w.c.	4" w.c.
LP Gas	13" w.c.	8" w.c.

985,000 - 2,065,000 Btu/hr
Nat. Gas	10.5" w.c.	4.5" w.c.
LP Gas	13" w.c.	8" w.c.

MANIFOLD PRESSURE: Measure manifold pressure at the pressure tap on the downstream side of the combination gas valves. The gas regulator on the unit's combination gas valve is adjustable to supply proper manifold pressure for normal operation. See TABLE-I for net manifold pressure settings.

If you must adjust regulator pressure, follow the instructions under Gas Manifold Pressure Adjustment, page 19. Do not increase regulator pressure beyond the specified pressure setting.

Gas Pressure Test

1.Disconnect the unit from the gas supply piping system during any piping system pressure testing greater than 1/2 PSIG (3.5kPa).

2.Isolate the unit from the gas supply piping system by closing a manual shutoff valve during any piping system pressure testing that is equal to or less than 1/2 PSIG (3.5kPa).

3.Test all gas connections for gas leaks before placing unit in operation.

Gas Piping

To safely operate this unit, you must properly size the gas supply piping. See TABLES- F, G, & H for piping and fitting requirements. Gas pipe size may be larger than heater connection.

The gas connection for models 495,000 to 745,000 Btu/hr is 1 1/4" NPT and on models 985,000 to 2,065,000 Btu/hr the gas connection to these units is 2" NPT.

For ease of service, install a union.

Install a manual main gas shutoff valve, outside of the unit gas connection within six feet of the unit in accordance with the requirements of the National Fuel Gas Code, ANSI Z223.1.

You must provide a sediment trap (drip leg) in the inlet of the gas connection to the unit.

Figure 17 - 495,000 - 745,000 Btu/hr Gas Line Connection Example

Figure 18 - 985,000 - 2,065,000 Btu/hr Gas Line Connection Example

IMPORTANT: Do not block access to the electrical cover plate when installing the sediment trap. The sediment trap must be a minimum of 12 inches from the appliance.

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.

Lochinvar 065, 495, 000 - 2 service manual Gas Pressure Test, Gas Piping, Input Max Min

Models: 000 - 2 065 495