Lochinvar 81-286 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 81 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 boiler 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 startupInstructions 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 Check flame signalCleaning boiler heat exchanger Review with ownerOiled bearing circulators Kit Part Component Number DescriptionTroubleshooting Before troubleshootingCheck control module fuses Check the followingNo Display No BurnerOperation Unit DoesTemperature Resistance Temperature Resistance Checking temperature sensorsResistance Temperature Noisy No PumpBoiler Pump System Pump DHW PumpTroubleshooting Temp Sw OpenApplies to the 286 Model Only Anti-cyclingCont’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 Rem Ctrl Flt Service BlkParameters Progr Combustion Analysis Procedure Gas valve adjustment procedure Gas Valve AdjustmentOr Obstruction Gas Supply Pressure
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81-286 specifications

Lochinvar 81-286 is a highly efficient and innovative heating solution that represents the latest advancements in boiler technology. This model, part of Lochinvar's prestigious line-up, is designed for commercial applications, delivering superior performance while emphasizing energy efficiency and user-friendly operation.

One of the standout features of the Lochinvar 81-286 is its robust construction. Built with high-quality materials, the unit is engineered for durability and reliability, ensuring long-term operation with minimal maintenance. Its compact design allows for versatility in installation, making it suitable for various building layouts and configurations.

The boiler's primary technology is its advanced condensing capability, which optimizes heat transfer and reduces energy consumption. By efficiently using the heat generated during combustion, the 81-286 can achieve higher thermal efficiencies, often surpassing traditional systems. This results in lower operating costs and reduced greenhouse gas emissions, aligning with the growing demand for sustainable energy solutions in commercial buildings.

Lochinvar incorporates intelligent control systems into the 81-286, featuring user-friendly interfaces that facilitate straightforward programming and monitoring. These control systems enable precise regulation of temperature and pressure, ensuring optimal operation while providing real-time feedback that aids in troubleshooting and maintenance. Users can enjoy the convenience of remote monitoring, enhancing the overall user experience.

Another key characteristic of the Lochinvar 81-286 is its capacity range. The model is available in various sizes, allowing it to meet the specific demands of different facilities, from small businesses to large industrial applications. This flexibility makes it a top choice for contractors and engineers seeking reliable heating solutions that cater to diverse needs.

In addition, the Lochinvar 81-286 boasts exceptional safety features, including built-in safeguards that protect against overheating and pressure surges. These aspects ensure that the unit operates within safe parameters, providing peace of mind for facility managers and operators.

In summary, the Lochinvar 81-286 combines durability, efficiency, and advanced technology, making it an ideal solution for commercial heating needs. With its innovative condensing design, intelligent controls, and safety features, this boiler stands out as a reliable choice for those seeking sustainable and effective heating solutions. Its versatility and performance make it a key player in today’s ever-evolving energy landscape.