Contents

HAZARD DEFINITIONS

2

3. OPERATING INSTRUCTIONS

. . . . . . . . 9

PLEASE READ BEFORE PROCEEDING

3

4. SMART SYSTEM CONTROL MODULE

 

1. PREVENT COMBUSTION AIR CONTAMINATION . . . 4

Knight XL Control Module

. . . . . . . 10

2. MAINTENANCE SCHEDULE

5

Access Modes

. . . . . . . 11

Maintenance Procedures

6

Saving Parameters

. . . . . . . 11

Boiler Must Be Serviced and Maintained

6

Parameter Table

. . . . . . . 12

Check Boiler Area

6

A: General

. . . . . . . 13

Check Pressure Temperature Gauge

6

B: Temperature Settings

. . . . . . . 13

Check Vent Piping

6

C: Data Logging

. . . . . . . 13

Check Air Piping

6

E: DHW Settings

. . . . . . . 14

Check Relief Valve

6

F: Outdoor Air Reset

. . . . . . . 14

Check Condensate Drain System

6-7

Status Display Screens

. . . . . . . 15-18

Check Air Vents

8

NOTES

. . . . . . . 19

Test Low Water Cutoff (if installed)

8

Revision Notes

Back Cover

Reset Button (low water cutoff)

8

 

 

Check Boiler Piping (gas and water)

8

 

 

Operate Relief Valve

8

 

 

Shut Boiler Down

8

 

 

Hazard definitions

The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product.

￿DANGER

￿WARNING

￿CAUTION

CAUTION

NOTICE

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

NOTICE indicates special instructions on installation, operation, or maintenance that are important but not related to personal injury or property damage.

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Lochinvar 399 - 800 manual Contents

399 - 800 specifications

Lochinvar is known for its cutting-edge water heating and boiler systems, and the Lochinvar 399 - 800 series is no exception. Specifically designed for commercial applications, this series brings advanced technology and engineering to the forefront of hydronic heating solutions.

One of the standout features of the Lochinvar 399 - 800 series is its impressive efficiency. Equipped with a condensing design, these boilers utilize high-efficiency stainless steel heat exchangers that allow for maximum heat transfer while minimizing energy consumption. With an impressive thermal efficiency of up to 96%, the Lochinvar 399 - 800 series stands out in its class, offering significant energy savings and reduced operational costs over time.

Another key characteristic of this series is its robust construction. Designed with longevity in mind, the boilers are built using high-quality materials that withstand extreme temperatures and pressures. The stainless steel design not only enhances durability but also combats corrosion, ensuring a long service life and reduced maintenance costs for users.

The Lochinvar 399 - 800 series also incorporates advanced control technologies. With its intuitive control system, users can easily adjust and monitor heating parameters, ensuring optimal performance and comfort. The integrated Control Wizard feature simplifies the setup process, allowing for quick commissioning and troubleshooting. Additionally, the optional Lochinvar SMART CONTROL technology provides remote monitoring capabilities, allowing operators to keep track of system performance from anywhere.

Versatility is another hallmark of the Lochinvar 399 - 800 series. These boilers come in a range of sizes, with the ability to modulate output based on real-time heating demands. This flexibility ensures that systems can operate efficiently under varying load conditions, making them ideal for schools, hospitals, and commercial buildings requiring consistent hot water availability.

In summary, the Lochinvar 399 - 800 series exemplifies modern boiler technology, combining energy efficiency, durability, advanced controls, and versatility. As businesses and facilities seek to enhance their heating systems, the Lochinvar 399 - 800 offers a reliable and forward-thinking solution for today's energy-conscious environment. Investing in this state-of-the-art boiler system not only improves comfort but also fosters sustainability and cost-effectiveness in commercial heating applications.