Lochinvar 000 through 2, 1 warranty Status Points, Table U, Status Point Operational Modes

Page 43

FIG. 56g Command Display Data Screen

STATUS POINTS

In the screen display for a specific boiler or water heater, there will be a Status indication. The status point details the operational mode of the appliance or in the event of a control sensed failure, a status point alarm. The status point alarm mode indicates the reason for the control sensed shut down of the appliance.

POWER-UP AND NAVIGATION BETWEEN THE SCREENS OF THE COMMAND DISPLAY

The first screen is viewable on the Command Display as it is powered up. This Command Display screen gives the current software version running on the Excel 10. This screen goes away after 60 seconds. The amount of time until this screen changes is displayed on the bottom left of the screen in a numeric count. After the 60 seconds expires or when the user presses any key during this interval, the next screen is displayed. This feature is used for performing factory tests.

After power-up, the Command Display starts acquiring data from the Excel 10. The following screens display the status of the bytes of data received from the Excel 10. After receiving all the data bytes, the Command Display shows the Heat Source(s) and the presence of an Optional Sequencer, if equipped. Note that the Heat Source names can vary but typically they may be Boiler #01 up to Boiler #16 or WtrHtr #01 up to WtrHtr #16, based on the application. At the time an order is placed, the owner may specify a unique name for each appliance if desired. Pressing the Configure softkey will take you to the System Configure screen with two active softkeys. The Setup softkey will take you to a screen which allows you to setup the display in the screen. The Password softkey will take you to the password screen to set the three levels of password required to access the various functions of the Excel 10.

 

TABLE - U

 

Status Point Operational Modes:

 

 

Self Test:

Excel 10 self test period, approximately 5 seconds during power up of Excel 10.

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Standby:

There is no call for heat and the boiler is waiting for a call for heat.

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H2OFlow OK:

Checking operation of flow switch to verify water flow from the pump.

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Air Press OK:

Low air switch verifies operation of combustion air blower.

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Drain OK:

Verifies that the condensate drain flow to the optional Condensate Management System is not

 

blocked.

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GasPress OK:

Verifies gas pressure at optional switch(es) - high and/or low.

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PrePurge:

Pre purge operation of combustion air blower.

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HSI OK:

Hot Surface Igniter On.

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Burner ON:

Burner On.

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Heating:

Temperature is beginning to rise.

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PostPurge:

Post purge combustion blower operation after a call for heat sequence.

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Image 43 Contents
Special Instructions To Owner WarrantyIFB/IFW-i&s-05 Table of Contents Owner Warning Checking EquipmentDo not What to do if YOU Smell GASClearances from Combustible Construction Installation Procedure Location of UnitRecommended Service Clearances Table aCombustion Air Direct from Outside 500 in2 3226 cm2 667 in2 4303 cm2 000 in2 12,903 cm2 Table BMinimum Recommended Combustion AIR Supply to Mechanical RoomConstruction Air Filter Construction AIR FilterCategory IV Flue Pipe Sizes Construction AIR Filter Kits Table CVenting Table DVenting Guidelines for a Category IV Vent Category IV Positive Pressure Venting SystemCategory IV Venting Category IV Flue Pipe MaterialsGeneral Category IV Vent Termination Clearances Drain Tee InstallationExceed a maximum of 100 equivalent feet 30.5 m in length Vertical Venting Terminations Masonry Chimney InstallationsSidewall Vent Sidewall Venting TerminationsTable E Sidewall Vent Cap KitsDirect Vent INTELLI-VENT Systems Location of a Sidewall Vent TerminationLength of Air Inlet Pipe Table FDirect Vent and Intelli-Vent Flue Air Inlet Pipe Sizes Air InletCombined Combustion Air Inlet Points Vertical Direct Vent SystemsHorizontal Direct Vent Multiple Vertical Direct Vent InstallationsTable G Sidewall Combustion AIR InletLocation of a Sidewall Air Inlet Cap These are Multiple Horizontal Direct Vent InstallationsAir Inlet Sidewall Input Flue Pipe Btu/hr Size Table HCombined Air Inlet Points Maximum Length of an Intelli-Vent System500,000 SVK3026 Horizontal INTELLI-VENT with Vertical Combustion AIRAir Inlet Sidewall Input Flue Pipe Btu/hr Size Cap KitLocation of a Rooftop Air Inlet Cap Vertical Combustion Horizontal INTELLI-VENT AIR InletTable J Table L GAS Supply GAS Pressure TestTable K GAS ConnectionTable N Recommended Gas Pipe Size Single Appliance InstallationsMultiple Appliance Installations Gas Pipe Size Chart Table MChecking GAS Supply Pressure GAS Manifold Pressure AdjustmentInstall Piping to Control GAS PipingChecking Manifold GAS Pressure Water Connections Water ConnectionsInlet and Outlet Connections Secondary Heat Exchanger Primary Heat ExchangerMinimum Pipe Size Requirements Bypass Valve Synchronization Integral BypassBypass Initial Set-up of Maximum Water Flow Bypass Piping AssemblyIntegral Circulator Optional Intermittent Pump OperationBypass Operation Minimum Water TemperaturesBtu/hr Input Temperature Rise Table PGAS Train and Controls Water Flow SwitchTable Q LOW Water CutoffDiaphragm GAS Valve Ratio GAS Valve Relief ValveElectrical Connections Jacket AssemblyFront Control Panel Locations Access to Components and ControlsTransformer and Relay Locations Variable Frequency DriveLOW AIR Pressure Switch High GAS Pressure Switch LOW GAS Pressure Switch OptionalExcel Be used as a diagnostic indicator To Activate the Manual Override Temperature AdjustmentDefault Values Pre-programmed in the Excel Table SAccessing the SIX Changeable Points from Command Display Password FunctionConfiguring Command Display Table T Display Default ValuesSequencing Type Calculated Set PointTotal Run Time Set Point TempCommand Display Data Screen Hot Surface Igniter On Status PointsTable U Status Point Operational ModesOptional on Heating Boilers Only Outdoor Reset Function SelectionsEfficiency Optimized with Time Equalization Multiple Appliance InstallationsInterfacing Multiple Appliances Singly Terminated FTT Network Bus Topology SpecificationsTable W Additional Components Used to Interface Multiple Appliances Wire Termination for E-Bus ConnectionTypical Building Management System Diagram High Water Temperature Limit ControlHOT Surface Ignition System Service PartsIgnition Module Lockout Functions Table Z Diagnostic Status IndicationTable Y Ignition and Control TimingsTable AA OPERATION/DIAGNOSTIC LIGHTS, Resets and SwitchesIndicator BurnerCombustion Air Blower and Transition Chamber Combustion AIR BlowerCondensate Drain Location On Rear Condensate ManagementSystem Optional Table BBCondensate Trap Installation Condensate TestingReplenishing the Neutralizer Lighting Instructions Install Condensate TrapIgnition System Checkout To Turn OFF GAS to ApplianceHeat Transfer Process Sequence of OperationEnd of Sequence MaintenanceBurner Maintenance Burner Removal and CleaningLocation of Primary Heat Exchanger Burner Cleaning ProcedureSecondary Heat Exchanger Inspection Lubrication Freeze Protection Water Connections Heating Boilers only Heating Boiler InstallationsFreeze Protection for a Heating Boiler System If Required Water TreatmentCirculator Pump Operation Primary Loop Circulator Pump SpecificationsPiping Lengths Boiler Circulator Pump LimitationsPRIMARY/SECONDARY Boiler Piping Minimum Boiler Water TemperaturesBtu/hr Input Maximum Flow Boiler Temperature Rise Chart Table DDTable CC Maximum Flow for Heating BoilerTypical Heating Boiler Installations TEMPERATURE/PRESSURE GaugePlacing the Boiler Operation Boiler Operating Temperature Control Installation with a Chilled Water SystemBoiler Operation Typical Water Heater Piping with Storage Tank Water Velocity ControlTable FF Table EEMaximum Flow Rate Btu/hr Input Water Chemistry Single Water Heater Piping with Two Storage Tanks Piping Multiple Unit InstallationsCommon Manifold Table GGPump Operation Heat ExchangerTable HH Thermostat SettingsThermal Expansion Optional Relief ValveCathodic Protection Ladder Diagram PWM Wiring Diagram
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