Lochinvar 400-801 service manual Description, See User Access Installer Access Display Modify

Page 17

Service Manual

1 Service (continued)

Parameter table

Table 1-4(continued from previous page) This table lists SMART SYSTEM control module parameters and where to access them

Menu

CONTROL MODES

PUMPSCIRCULATION

BMS

SERVICE

NOTIFICATION

Description

Controlling Sensor

BMS Tstat Input

BMS

ModBus

ModBus T/O

Cascade Address

Cascade Type

Max Cascade Set Point

Cascade Offset

Cascade Differential

Min On/Off Time

Min Next On Time

Boiler Size

System Pump Delay

Boiler Pump Delay

DHW Pump Delay

Boiler Pump Anti-Seize Delay

Boiler Pump Min Voltage

System Pump Type

DHW Pump Anti-Seize Delay

DHW Blocks Sys Pump

DHW Forces Sys Pump

System Pump Anti-Seize Delay

BMS Type

Volts at Min

Volts at Max

Rate at Min Volts

Rate at Max Volts

Set Point at Min Volts

Set Point at Max Volts

On Volts

Off Differential Volts

Service Notification Months

Service Notification Running Time

Service Notification Cycles

Reset Maintenance Reminder

Service Name and Phone Number

See

User Access

Installer Access

Page

Display

Modify

Display

Modify

23

No

No

Yes

 

Yes

23

No

No

Yes

 

Yes

23

No

No

Yes

 

Yes

23

No

No

Yes

 

Yes

23

No

No

Yes

 

Yes

23

No

No

Yes

 

Yes

23

No

No

Yes

 

Yes

24

No

No

Yes

 

Yes

24

No

No

Yes

 

Yes

24

No

No

Yes

 

Yes

24

No

No

Yes

 

Yes

24

No

No

Yes

 

Yes

24

No

No

Yes

 

Yes

24

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

25

No

No

Yes

 

Yes

26

No

No

Yes

 

Yes

26

No

No

Yes

 

Yes

26

No

No

Yes

 

Yes

26

No

No

Yes

 

Yes

26

No

No

Yes

 

Yes

26

No

No

Yes

 

Yes

26

No

No

Yes

 

Yes

26

No

No

Yes

 

Yes

26

No

No

Yes

 

Yes

 

 

 

 

 

 

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Image 17
Contents Models 400 Contents Niosh stated First Aid Please read before proceedingHandling ceramic fiber materials When servicing boiler Service What is in this manual?Maintenance TroubleshootingNear boiler piping ServiceNavigation Dial Knight XL displayLOW Voltage Connection Board Control inputsControl outputs Smart Control ModuleGeneral Operation Access modesHow the boiler operates How the control module operatesOperation Display From previous page Sequence of Operation Button Screen Operation Display Status Display panel menu accessButton Screen Status Operation Display Display panel parameter accessMenu Description See User Access Installer Access Display ModifyParameter table Resetoutdoor ANTI-CYCLING Description See User Access Installer Access Display ModifyViewable and changeable control parameters Temperature units C / FTime and Date Software VersionFunctions Temperature SettingsData Logging DHW Settings Outdoor Reset Anti-Cycling Control modes Circulation pumps Cascade OffsetMinimum On/Off Time DHW Pump Delay Boiler Pump DelayBoiler Pump Anti-Seize Delay DHW Pump Anti-Seize DelayService Notification Owner maintenance Maintenance Maintenance and annual startupService technician Maintenance Check expansion tank Check boiler relief valve Flue vent system and air pipingCheck water system Check all boiler wiring Check ignition ground wiringCheck control settings Inspect ignition and flame sense electrodesCleaning boiler heat exchanger Check flame signalReview with owner Model Kit Part Component Number DescriptionTest low water flow conditions Test procedureBefore troubleshooting TroubleshootingCheck the following Check control module fusesNo Burner No DisplayOperation Unit DoesTemperature Resistance Temperature Resistance Checking temperature sensorsWire Color R/BK and Y Wire Color G and Y Resistance TemperatureNo Pump NoisyBoiler Pump System PumpTroubleshooting Open Temp SwAnti-cycling Flame Fail IgnFlame Sequence Cont’dOutlet Mrhl Outlet ArhlFan Speed Low Fan Low/HighHigh GV/RelaySensor Shorted FaultLouver Proving Inlet SensorFatal Error Flue Sensor FaultMemory Error Flue Temp DiffOutlet Temp Flue Temp HighDelta T High Watch Dog Error Service BlkNo Error Stored Rem Ctrl FltCombustion Analysis Procedure Models 601 Gas valve adjustment procedureModel
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Manual 56 pages 37.3 Kb

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.