Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 400-801 Inspect ignition and flame sense electrodes, Check ignition ground wiring

Models: 400-801

1 56
Download 56 pages 37.3 Kb
Page 52
Image 52

9 Maintenance

Inspect ignition and flame sense electrodes

1.Remove the ignition and flame sense electrodes from the boiler heat exchanger access cover.

2.Remove any deposits accumulated on the ignition/flame sense electrode using sandpaper. If the electrodes cannot be cleaned satisfactorily, replace with new ones.

3.Replace ignition/flame sense electrode, making sure gasket is in good condition and correctly positioned.

Check ignition ground wiring

1.Inspect boiler ground wire from the heat exchanger access cover to ground terminal strip.

2.Verify all wiring is in good condition and securely attached.

3.Check ground continuity of wiring using continuity meter.

4.Replace ground wires if ground continuity is not satisfactory.

Check all boiler wiring

1.Inspect all boiler wiring, making sure wires are in good condition and securely attached.

Check control settings

1.Set the SMART SYSTEM control module display to Parameter Mode and check all settings. See Section 1 of the Outdoor Knight XL Service Manual. Adjust settings if necessary. See Section 1 of the Outdoor Knight XL Service Manual for adjustment procedures.

2.Check settings of external limit controls (if any) and adjust if necessary.

Perform start-up and checks

1.Start boiler and perform checks and tests specified in Section 7 - Start-up.

2.Verify cold fill pressure is correct and that operating pressure does not go too high.

Check burner flame

1.Inspect flame through observation window.

2.If the flame is unsatisfactory at either high fire or low fire, turn off boiler and allow boiler to cool down. Remove the burner and clean it thoroughly using a vacuum cleaner or compressed air. Do not use compressed air to clean burner if performed inside a building.

3.Remove the burner, reference FIG.’s 9-2 thru 9-4.

4.When replacing the burner, ensure gasket is in good condition and positioned correctly (FIG.’s 9-2 thru 9-4).

52

Outdoor Knight XL Installation & Operation Manual

Figure 9-2Burner Assembly - Model 400

AIR / GAS

ARM

SCREWS

(5)

IMG00437

BURNER

GASKET

Figure 9-3Burner Assembly - Model 501

AIR / GAS

ARM

SCREWS

(5)

IMG00438

BURNER

GASKET

Figure 9-4Burner Assembly - Models 601 - 801

AIR / GAS

ARM

IMG00439

BURNER

GASKET

SCREWS

(5)

Page 51 Page 53
Page 52
Image 52
Lochinvar 400-801 Inspect ignition and flame sense electrodes, Check ignition ground wiring, Check all boiler wiring
Page 51 Page 53

400-801 specifications

The Lochinvar 400-801 is a high-efficiency commercial boiler that embodies advanced engineering and cutting-edge technology. Designed for a variety of commercial applications, this boiler is known for its reliability, efficiency, and robust performance.

One of the standout features of the Lochinvar 400-801 is its high thermal efficiency, which can reach up to 99%. This efficiency not only reduces fuel consumption but also lowers operating costs, making it an economical choice for businesses seeking to minimize overhead. The boiler employs a stainless steel fire-tube heat exchanger that ensures optimal heat transfer and durability. This construction allows for enhanced resistance to corrosion, thereby extending the boiler's lifespan.

The Lochinvar 400-801 is equipped with advanced control technologies that enhance its performance. With its built-in SMART SYSTEM control, users can easily monitor and manage the boiler’s operations, optimizing performance while ensuring ease of use. This control system features a user-friendly interface that provides real-time data, including temperature settings, pressure readings, and operational status, allowing for quick diagnostics and efficient troubleshooting.

Safety is paramount in the design of the Lochinvar 400-801. The boiler includes a comprehensive safety system that incorporates multiple safety interlocks and a venting system that prevents backflow and ensures safe exhaust. Moreover, the unit is designed to operate with minimal noise, making it suitable for environments where noise reduction is crucial.

Installation and maintenance of the Lochinvar 400-801 are straightforward, thanks to its compact design and multiple venting options. The low-profile construction allows for flexibility in placement, making it an ideal fit for tight spaces. Maintenance tasks are simplified with accessible components, minimizing downtime and ensuring the system operates efficiently over its lifespan.

In conclusion, the Lochinvar 400-801 stands out in the commercial boiler market with its blend of efficiency, reliability, and innovation. With its advanced technologies and features, businesses can achieve significant energy savings while ensuring comfortable and consistent heat for various applications. The Lochinvar 400-801 is an investment in quality and performance, backed by a well-established brand in the heating industry. Whether for a new installation or a replacement, this boiler offers a comprehensive solution for commercial heating needs.