Lochinvar 400-801 service manual Parameter table, Menu

Page 15

Service Manual

1 Service (continued)

Parameter table

Table 1-4This table lists SMART SYSTEM control module parameters and where to access them

Menu

GENERAL

SETTINGSTEMPERATURE

DATALOGGING

FUNCTIONS

SETTINGSDHW

Description

See

User Access

Installer Access

 

Page

Display

Modify

Display

Modify

 

 

 

Time and Date

18

Yes

Yes

Yes

 

Yes

 

Software Version (read only)

18

No

No

Yes

 

No

 

Temperature Units (ºC/ºF)

18

Yes

Yes

Yes

 

Yes

 

SH Night Setback Offset

18

No

No

Yes

 

Yes

 

SH Night Setback On Times

18

No

No

Yes

 

Yes

 

 

 

 

 

 

 

 

 

SH Night Setback Off Times

18

No

No

Yes

 

Yes

 

DHW Night Setback Offset

18

No

No

Yes

 

Yes

 

DHW Night Setback On Times

18

No

No

Yes

 

Yes

 

DHW Night Setback Off Times

18

No

No

Yes

 

Yes

 

Display Timeout

19

No

No

Yes

 

Yes

 

SH1 Set Point

19

Yes

Yes

No

 

No

 

 

 

 

 

 

 

 

 

Minimum SH Set Point

19

No

No

Yes

 

Yes

 

Maximum SH Set Point

19

No

No

Yes

 

Yes

 

SH1 Offset

19

No

No

Yes

 

Yes

 

SH1 Differential

19

No

No

Yes

 

Yes

 

SH2 Set Point

19

Yes

Yes

No

 

No

 

SH2 Offset

19

No

No

Yes

 

Yes

 

SH2 Differential

19

No

No

Yes

 

Yes

 

 

 

 

 

 

 

 

 

SH3 Set Point

19

Yes

Yes

No

 

No

 

SH3 Offset

19

No

No

Yes

 

Yes

 

SH3 Differential

19

No

No

Yes

 

Yes

 

3-Way Valve Time

19

No

No

Yes

 

Yes

 

Reset Log Errors

19

No

No

Yes

 

Yes

 

Service Mode Delay

19

No

No

Yes

 

Yes

 

Freeze Protection Pump On

19

No

No

Yes

 

Yes

 

Freeze Protection Burner On

19

No

No

Yes

 

Yes

 

 

 

 

 

 

 

 

 

Freeze Protection Burner Differential

20

No

No

Yes

 

Yes

 

DHW Boiler Set Point

20

No

No

Yes

 

Yes

 

Tank Set Point

20

Yes

Yes

Yes

 

Yes

 

Tank Set Point Differential

20

No

No

Yes

 

Yes

 

DHW Boiler Offset

20

No

No

Yes

 

Yes

 

DHW Boiler Differential

20

No

No

Yes

 

Yes

 

SH/DHW Switching Time

20

No

No

Yes

 

Yes

 

DHW/SH Switching Time

20

No

No

Yes

 

Yes

 

Tank Minimum Set Point

20

No

No

Yes

 

Yes

 

Tank Maximum Set Point

20

No

No

Yes

 

Yes

 

DHW Type

20

No

No

Yes

 

Yes

 

Fan Speed Limiting for DHW

20

No

No

Yes

 

Yes

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Image 15
Contents Models 400 Contents Please read before proceeding Handling ceramic fiber materialsNiosh stated First Aid When servicing boiler Troubleshooting What is in this manual?Service MaintenanceNear boiler piping ServiceNavigation Dial Knight XL displayLOW Voltage Connection Board Control inputsControl outputs Smart Control ModuleHow the control module operates Access modesGeneral Operation How the boiler operatesOperation Display From previous page Sequence of Operation Button Screen Operation Display Status Display panel menu accessButton Screen Status Operation Display Display panel parameter accessDescription See User Access Installer Access Display Modify Parameter tableMenu Resetoutdoor ANTI-CYCLING Description See User Access Installer Access Display ModifySoftware Version Temperature units C / FViewable and changeable control parameters Time and DateTemperature Settings Data LoggingFunctions DHW Settings Outdoor Reset Anti-Cycling Control modes Cascade Offset Minimum On/Off TimeCirculation pumps DHW Pump Anti-Seize Delay Boiler Pump DelayDHW Pump Delay Boiler Pump Anti-Seize DelayService Notification Maintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Flue vent system and air piping Check water systemCheck expansion tank Check boiler relief valve Inspect ignition and flame sense electrodes Check ignition ground wiringCheck all boiler wiring Check control settingsModel Kit Part Component Number Description Check flame signalCleaning boiler heat exchanger Review with ownerTest low water flow conditions Test procedureCheck control module fuses TroubleshootingBefore troubleshooting Check the followingUnit Does No DisplayNo Burner OperationResistance Temperature Checking temperature sensorsTemperature Resistance Temperature Resistance Wire Color R/BK and Y Wire Color G and YSystem Pump NoisyNo Pump Boiler PumpTroubleshooting Flame Fail Ign Temp SwOpen Anti-cyclingFlame Sequence Cont’dOutlet Mrhl Outlet ArhlGV/Relay Fan Low/HighFan Speed Low HighInlet Sensor FaultSensor Shorted Louver ProvingFlue Temp Diff Flue Sensor FaultFatal Error Memory ErrorFlue Temp High Delta T HighOutlet Temp Rem Ctrl Flt Service BlkWatch Dog Error No Error StoredCombustion Analysis Procedure Gas valve adjustment procedure ModelModels 601
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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.