Lochinvar 399 - 800 service manual Contents

Page 2

Contents

CONTENTS

. 2

2. MAINTENANCE

 

 

Hazard Definitions

. 2

Maintenance and Annual Startup

. . . . . . .

23-27

PLEASE READ BEFORE PROCEEDING

. 3

3. TROUBLESHOOTING

 

 

Handling Ceramic Fiber Materials

. 3

Before Troubleshooting

. . . . . . .

28

When servicing boiler

. 4

Check Control Module Fuses

. . . . . . .

28

Boiler operation

4

Table 3A - Troubleshooting Chart - No Display .

. . . . . . .

29

Boiler water

. 4

Checking Temperature Sensors

. . . . . . .

30

Freeze protection fluids

. 4

Table 3E - Troubleshooting Chart - Noisy System . . . . . 31

WHAT IS IN THIS MANUAL

. 5

Table 3F - Troubleshooting Chart - Fault Messages . . . .

32-39

1. SERVICE

 

Combustion Analysis Procedure

. . . . . . .

40

Near Boiler Piping

. 6

Table 3G - Troubleshooting Chart - Combustion Levels

40

The Knight Boiler Display

. 7

Table 3H - Flue Products

. . . . . . .

40

Control Inputs

. 8

Gas Valve Adjustment Procedure

. . . . . . .

41

Control Outputs

. 9

Revision Notes

Back Cover

General Operation

10

 

 

 

Sequence of Operation

11-12

 

 

 

Display Panel Menu Access

13

 

 

 

Display Panel Parameter Access

14

 

 

 

Parameter Table

15-16

 

 

 

Viewable and Changeable Control Parameters

17-22

 

 

 

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.

2

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Contents Models 399 Contents Niosh stated First Aid Please read before proceedingHandling ceramic fiber materials When servicing boiler Maintenance What is in this manual?Service TroubleshootingService Near boiler pipingKnight XL display Menu / Exit UP DownControl inputs Smart Control Module Control outputsHow the control module operates General OperationHow the boiler operates Sequence of operationSequence of operation BLR IgnitionBLR SH 41% Rate Display panel menu access Use this procedure to access menus from the display panelDisplay panel parameter access Value will appearTemperature Data Parameter tableControl Circulation Service Temperature settings Viewable and changeable control parametersData logging DHW settingsOutdoor air reset FunctionsMaximum SH set point Maximum air temperatureShift reset curve Minimum SH set pointAnti-cycling SH source Control modesSH controlling sensor Boiler cascade addressCirculation pumps Service NotificationCascade offset Owner maintenance Maintenance Maintenance and annual startupService technician Maintenance Check expansion tank Flue vent system and air pipingCheck water system Check boiler relief valveCheck control settings Check ignition ground wiringCheck all boiler wiring Inspect ignition and flame sense electrodesReview with owner Check flame signalCleaning boiler heat exchanger Check control module fuses TroubleshootingBefore troubleshooting Check the followingOperation No DisplayNo Burner Unit Does NotChecking temperature sensors Temperature ResistanceOperation Boiler Pump NoisyNo Pump System PumpFlame Switch/LWCOFlow SequenceAnti-cycling No Flame IgnNo Flame RunningFan Low Adjustable HighLimit w/Manual Fan Speed LowSensor Open Fan HighFan Speed High Sensor ShortedTemp O/Shoot Progr Rem Ctrl FltParameters OpenNo Error Stored Service BlkWatch Dog Error Low 24 VACOr Obstruction Combustion Analysis ProcedureGas Valve Adjustment Gas Supply PressureModels 600 Gas valve adjustment procedureModel Page Page KBX-SER Rev E
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Manual 20 pages 31.65 Kb

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.