Lochinvar 81-286 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

OUTDOORRESET

-ANTI CYCLING

CONTROL MODES

PUMPSCIRCULATION

Description

Boost Temperature

Boost Time

Anti-Cycling Time

Anti-Cycling Override Differential

Ramp Delay

Ramp Settings

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

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

System Pump Anti-Seize Delay

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

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

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

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Page 16 Page 18
Contents
Models 81 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 boiler 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 DHW Settings Resetoutdoor Description See User Access Installer Access Display ModifyBMS Service Notification Viewable and changeable control parameters Temperature units C / FTime and Date Software VersionFunctions Temperature SettingsData Logging DHW Settings Outdoor Reset Anti-Cycling Control modes Ramp SettingsControlling Sensor BMS Thermostat InputMinimum On/Off Time Cascade OffsetCirculation pumps Service Notification Instructions Maintenance Maintenance and annual startupService technician Maintenance Check water system Flue vent system and air pipingCheck expansion tank Check boiler relief valveCheck all boiler wiring Check ignition ground wiringCheck control settings Check flame signalReview with owner Cleaning boiler heat exchangerOiled bearing circulators Kit Part Component Number DescriptionBefore troubleshooting TroubleshootingCheck control module fuses Check the followingNo Burner No DisplayOperation Unit DoesResistance Temperature Checking temperature sensorsTemperature Resistance Temperature Resistance No Pump NoisyBoiler Pump System Pump DHW PumpTroubleshooting Open Temp SwApplies to the 286 Model Only Anti-cyclingFlame 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 Parameters Progr Service BlkRem Ctrl Flt Combustion Analysis Procedure Gas Valve Adjustment Gas valve adjustment procedureOr Obstruction Gas Supply Pressure
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