Installation and Service Manual

Water Chemistry

The required temperature rise and the standard pump sizing are based on the heating of potable water with a hardness of 5 to 25 grains per gallon and a total dissolved solids not exceeding 350 ppm. Consult the appliance manufacturer when heating potable water exceeding these specifications. Heating of high hardness and/or high total dissolved solids water will require a larger circulating pump, an optional cupro-nickel heat exchanger and a revised temperature rise specification based on the water chemistry of the water to be heated. Water with a hardness of less than 5 grains per gallon will usually have a low pH which can be aggressive and corrosive causing non- warrantable damage to the heater, pump and associated piping. Corrosion due to water chemistry generally shows up first in the hot water system because heated water increases the rate of corrosive chemical reactions.

COLD WATER

SUPPLY

EXPANSION TANK

TABLE - R

Pipe Sizing Chart

495,000 - 745,000 985,000 - 2,065,000

Number

Common

Number

Common

of

Pipe

of

Pipe

Units

Size (Min)

Units

Size (Min)

1

2"

1

2 1/2"

2

3"

2

4"

3

3"

3

4"

4

4"

4

5"

5

5"

5

6"

6

5"

6

6"

Circulating Pump

MIXING VALVE

HOT WATER

SUPPLY

(IF REQUIRED)

1.The water heater must be connected to a properly sized pump that circulates water between the heater and storage tank.

RELIEF

VALVE

RELIEF VALVE

LOCK-TEMP

STORAGE

TANK

CIRCULATING

PUMP 2. The pump is sized to heater input and water hardness. Care should be taken to size the pump correctly. See Water Chemistry on this page.

3.The water heater is equipped with a factory-supplied pump delay system in accordance with the requirements of the latest edition of ASHRAE 90.1.

DRAIN

BUILDING

RETURN

Figure 41 - Typical Water Heater Piping with Storage Tank

4.Lubricate the pump to the manufacturer’s recommendations. Pump damage due to inadequate lubrication is non-warrantable.

5.Standard water heaters are furnished with the following circulating pump. Mount the pump on the unit's inlet water connection.

Pipe Size Requirements

Table-R, pipe sizing chart provides the minimum pipe size for common manifold piping to ensure adequate flow.

495,000 -745,000 Btu/hr Models

1/4 HP, 120 VAC, 5.8 Amps

985,000 -2,065,000 Btu/hr Models

1/2 HP, 120 VAC, 7.4 Amps

ABLE-P

Pipe Sizing Chart

This pump is sized based on installation of a single storage tank and heater in close proximity. If the number of fittings and straight pipe exceeds the quantities shown in this section, a larger pump will be required.

The standard pump selection is based on the following pipe and fittings from the unit to the storage tank:

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Lochinvar 065, 495, 000 - 2 service manual Water Chemistry, Circulating Pump, Table R, Pipe Sizing Chart
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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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