7Gas connections

Connecting gas supply piping

1.Remove the top access panel and refer to FIG.’s 7-1 thru 7-3 to pipe gas to the boiler.

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

b.Install a manual shutoff valve in the gas supply piping outside boiler 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 - Model 399

UNION

GAS SUPPLY

Installation & Operation Manual

Figure 7-3Gas Supply Piping - Models 600 - 800

MANUAL SHUTOFF VALVE (FACTORY SUPPLIED)

GAS SUPPLY

DRIP LEG

UNION

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

SEDIMENT TRAP / DRIP LEG

MANUAL

￿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 boiler or its accessories. Failure to comply could result in severe personal injury, death, or substantial property damage.

SHUTOFF VALVE (FIELD SUPPLIED)

Figure 7-2Gas Supply Piping - Model 500

UNION

FIELD SUPPLIED

GAS SUPPLY

SEDIMENT TRAP / DRIP LEG

MANUAL SHUTOFF VALVE (FACTORY SUPPLIED)

4.Purge all air from the gas supply piping.

5.Before placing the boiler in operation, check the boiler 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.

￿WARNING Do not check for gas leaks with an open flame – use the bubble test. Failure to use

the bubble test or check for gas leaks can cause severe personal injury, death, or substantial property damage.

6.Use pipe sealing compound compatible with propane gases. Apply sparingly only to male threads of the pipe joints so that pipe dope does not block gas flow.

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Lochinvar 800 operation manual Gas connections, Connecting gas supply piping
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800 specifications

Lochinvar 800 is a groundbreaking boiler system designed to meet the heating needs of modern residential and commercial buildings. Renowned for its reliability and advanced technology, the Lochinvar 800 promises efficiency and performance that set it apart from conventional heating systems.

One of the standout features of the Lochinvar 800 is its high-efficiency heat exchanger, which enables significantly lower energy consumption compared to traditional units. This efficiency translates to substantial energy savings, making it not only an environmentally friendly choice but also a cost-effective one. The system boasts an impressive thermal efficiency rating, often exceeding 95%, which ensures that a large portion of the energy consumed is converted into usable heat.

Incorporating cutting-edge control technologies, the Lochinvar 800 utilizes smart controls that enable precise temperature regulation. These controls provide users with the ability to program and adjust settings according to specific heating needs, enhancing comfort while minimizing energy waste. The integration of modulating gas burners further optimizes energy usage, continuously adjusting the output based on the current demand, thereby preventing energy loss.

Another key characteristic of the Lochinvar 800 is its compact and sleek design, allowing for easy installation in various spaces, from utility rooms to commercial settings. The boiler's lightweight construction means that it can be mounted in tight areas, providing flexibility that adapts to the needs of the installation site.

Safety features are a top priority for the Lochinvar 800, equipped with advanced diagnostics and monitoring systems that ensure trouble-free operation. These systems continually assess performance and identify potential issues before they can evolve into serious problems, promoting longevity and reliability.

The Lochinvar 800 is also compatible with various heating distribution systems, including radiant floor heating and traditional radiators, making it a versatile choice for a wide range of applications. Coupled with its low emissions profile, the Lochinvar 800 stands out as a sustainable option in today’s market.

In summary, the Lochinvar 800 represents a new era in boiler design, merging efficiency, innovative technology, and adaptability to meet the challenges of contemporary heating needs. Its advanced features ensure optimal performance while maintaining a commitment to environmental responsibility, making it an ideal solution for energy-conscious consumers.
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