Lochinvar 801, 400 service manual DHW Settings Resetoutdoor

Page 16

Service Manual

1 Service

Parameter table

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

Menu

DHW SETTINGS

RESETOUTDOOR

Description

See

User Access

Installer Access

 

 

 

 

Page

Display

Modify

Display

Modify

 

DHW Boiler Set Point

21

No

No

Yes

Yes

 

 

 

 

 

 

Tank Set Point

21

Yes

Yes

Yes

Yes

 

 

 

 

 

 

Tank Set Point Differential

21

No

No

Yes

Yes

 

 

 

 

 

 

DHW Boiler Offset

21

No

No

Yes

Yes

 

 

 

 

 

 

DHW Boiler Differential

21

No

No

Yes

Yes

 

 

 

 

 

 

SH/DHW Switching Time

21

No

No

Yes

Yes

 

 

 

 

 

 

DHW/SH Switching Time

21

No

No

Yes

Yes

 

 

 

 

 

 

Tank Minimum Set Point

21

No

No

Yes

Yes

 

 

 

 

 

 

Tank Maximum Set Point

21

No

No

Yes

Yes

 

 

 

 

 

 

DHW Type

21

No

No

Yes

Yes

 

 

 

 

 

 

Fan Speed Limiting for DHW

21

No

No

Yes

Yes

Outdoor 1 Low

22

No

No

Yes

Yes

 

 

 

 

 

 

Outdoor 1 High

22

No

No

Yes

Yes

 

 

 

 

 

 

Set Point 1 at Low Outdoor Temp 1

22

No

No

Yes

Yes

 

 

 

 

 

 

Set Point 1 at High Outdoor Temp 1

22

No

No

Yes

Yes

 

 

 

 

 

 

Outdoor Air Shutdown SH1

22

No

No

Yes

Yes

 

 

 

 

 

 

Outdoor Air Shutdown Differential SH1

23

No

No

Yes

Yes

 

 

 

 

 

 

Shift Reset Curve SH1

23

No

No

Yes

Yes

 

 

 

 

 

 

Outdoor 2 Low

22

No

No

Yes

Yes

 

 

 

 

 

 

Outdoor 2 High

22

No

No

Yes

Yes

 

 

 

 

 

 

Set Point 2 at Low Outdoor Temp 2

22

No

No

Yes

Yes

 

 

 

 

 

 

Set Point 2 at High Outdoor Temp 2

22

No

No

Yes

Yes

 

 

 

 

 

 

Outdoor Air Shutdown SH2

22

No

No

Yes

Yes

 

 

 

 

 

 

Outdoor Air Shutdown Differential SH2

23

No

No

Yes

Yes

 

 

 

 

 

 

Shift Reset Curve SH2

23

No

No

Yes

Yes

 

 

 

 

 

 

Outdoor 3 Low

22

No

No

Yes

Yes

 

 

 

 

 

 

Outdoor 3 High

22

No

No

Yes

Yes

 

 

 

 

 

 

Set Point 3 at Low Outdoor Temp 3

22

No

No

Yes

Yes

 

 

 

 

 

 

Set Point 3 at High Outdoor Temp 3

22

No

No

Yes

Yes

 

 

 

 

 

 

Outdoor Air Shutdown SH3

22

No

No

Yes

Yes

 

 

 

 

 

 

Outdoor Air Shutdown Differential SH3

23

No

No

Yes

Yes

 

 

 

 

 

 

Shift Reset Curve SH3

23

No

No

Yes

Yes

 

 

 

 

 

 

16

Image 16
Contents Models 400 Contents Handling ceramic fiber materials Please read before proceedingNiosh stated First Aid When servicing boiler What is in this manual? ServiceMaintenance TroubleshootingService Near boiler pipingKnight XL display Navigation DialControl inputs LOW Voltage Connection BoardSmart Control Module Control outputsAccess modes General OperationHow the boiler operates How the control module operatesOperation Display From previous page Sequence of Operation Display panel menu access Button Screen Operation Display StatusDisplay panel parameter access Button Screen Status Operation DisplayParameter table Description See User Access Installer Access Display ModifyMenu DHW Settings Resetoutdoor See User Access Installer Access Display Modify DescriptionBMS Service Notification Temperature units C / F Viewable and changeable control parametersTime and Date Software VersionData Logging Temperature SettingsFunctions DHW Settings Outdoor Reset Anti-Cycling Ramp Settings Control modesControlling Sensor BMS Thermostat InputCascade Offset Minimum On/Off TimeCirculation pumps Service Notification Service technician Maintenance Maintenance and annual startupOwner maintenance Maintenance Flue vent system and air piping Check water systemCheck expansion tank Check boiler relief valveCheck ignition ground wiring Check all boiler wiringCheck control settings Inspect ignition and flame sense electrodesCheck flame signal Cleaning boiler heat exchangerReview with owner Model Kit Part Component Number DescriptionTroubleshooting Before troubleshootingCheck control module fuses Check the followingNo Display No BurnerOperation Unit DoesChecking temperature sensors Temperature Resistance Temperature ResistanceWire Color R/BK and Y Wire Color G and Y Resistance TemperatureNoisy No PumpBoiler Pump System PumpTroubleshooting Temp Sw OpenAnti-cycling Flame Fail IgnCont’d Flame SequenceOutlet Arhl Outlet MrhlFan Low/High Fan Speed LowHigh GV/RelayFault Sensor ShortedLouver Proving Inlet SensorFlue Sensor Fault Fatal ErrorMemory Error Flue Temp DiffDelta T High Flue Temp HighOutlet Temp Service Blk Watch Dog ErrorNo Error Stored Rem Ctrl FltCombustion Analysis Procedure Model Gas valve adjustment procedureModels 601
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400, 801 specifications

The Lochinvar 801,400 is a cutting-edge solution in the realm of high-efficiency commercial water heating. This model represents a significant advancement in the design and functionality of water heaters, catering primarily to the demands of large-scale facilities like hotels, hospitals, and large industrial operations.

One of the standout features of the Lochinvar 801,400 is its impressive heating capacity, which can produce up to 801,400 BTUs, making it suitable for high-demand applications. This output is crucial for establishments that require a consistent supply of hot water, such as commercial kitchens and laundry facilities. The robust design ensures that it can handle peak demand periods without compromising performance.

Another significant aspect is the innovative use of advanced technology in its operation. The Lochinvar 801,400 integrates smart controls that enhance its efficiency and ease of operation. These controls allow for precise monitoring and adjustment of water temperatures, ensuring that the system operates within optimal parameters while maximizing energy savings. The intelligent monitoring system can provide real-time updates, making it easier for facility managers to keep track of performance and address maintenance needs proactively.

The construction of the Lochinvar 801,400 incorporates durable materials that not only enhance the longevity of the unit but also offer resistance to corrosion and wear. This durability translates into lower maintenance costs and an extended lifespan for the unit, making it a worthwhile investment for businesses.

Moreover, the Lochinvar 801,400 is designed with energy efficiency in mind. It boasts a high thermal efficiency rating, which reduces operational costs and minimizes the carbon footprint of heating operations. This efficiency is critical in today’s environmentally conscious market, where businesses are seeking to reduce their energy consumption and comply with strict regulations.

The design of the Lochinvar 801,400 also prioritizes safety, featuring innovative safety controls and fail-safes that protect both the unit and the users.

In summary, the Lochinvar 801,400 offers a combination of high capacity, advanced technology, durability, and energy efficiency, making it an excellent choice for commercial water heating solutions. As industries continue to evolve, the demand for reliable and efficient water heating solutions like the Lochinvar 801,400 will only increase.