12 Maintenance (continued)

Figure 12-4Burner Assembly - Models 600 - 800

AIR ARM

BURNER

GASKET

SCREWS

(QTY. 5)

Check flame signal

1.At high fire the flame signal shown on the display should be at least 10 microamps.

2.A lower flame signal may indicate a fouled or damaged flame sense electrode. If cleaning the flame sense electrode does not improve, ground wiring is in good condition, and ground continuity is satisfactory, replace the flame sense electrode.

3.See Section 3 - Troubleshooting in the Knight XL Service Manual for other procedures to deal with low flame signal.

Review with owner

1.Review the Knight XL User’s Information Manual with the owner.

2.Emphasize the need to perform the maintenance schedule specified in the Knight XL User’s Information Manual (and in this manual as well).

3.Remind the owner of the need to call a licensed contractor should the boiler or system exhibit any unusual behavior.

4.Remind the owner to follow the proper shutdown procedure and to schedule an annual start-up at the beginning of the next heating season.

Installation & Operation Manual

Cleaning boiler heat exchanger

1.Shut down boiler:

•Follow the “To Turn Off Gas to Appliance” instructions for the boiler in Section 10 - Startup.

•Do not drain the boiler unless it will be exposed to freezing temperatures. If using freeze prevention fluid in system, do not drain.

2.Allow time for the boiler to cool to room temperature if it has been firing.

3.Remove the blower assembly (gas air/arm) from the heat exchanger access cover. Set bolts aside.

4.Remove the nuts securing the heat exchanger access cover to the heat exchanger and set aside.

5.Remove the heat exchanger access cover, cover gasket(s) and chamber insulation assembly.

￿WARNING The boiler contains ceramic fiber materials. Use care when handling these

materials per instructions in the Handling Ceramic Fibers Section of the Knight XL Service Manual. Failure to comply could result in severe personal injury.

6.Use a vacuum cleaner to remove any accumulation on the boiler heating surfaces. Do not use any solvent.

7.Finish cleaning using a clean cloth dampened with warm water.

8.Install access cover gasket, chamber insulation assembly and cover.

9.Secure nuts on the studs. DO NOT overtighten.

10.Re-install the blower assembly (gas air/arm) using the bolts set aside in Step 3.

11.Close isolation valves on piping to isolate boiler from system. Attach a hose to the boiler drain and flush boiler thoroughly with clean water by using purging valves to allow water to flow through the water make-up line to the boiler.

12.When the boiler has been flushed, restore boiler to operation.

13.Perform start-up and check-out procedures in Section 10 - Startup.

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Lochinvar 800 operation manual Check flame signal, Review with owner, Cleaning boiler heat exchanger
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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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