A.O. Smith SGE service manual Burner pressure regulator Blank plate Gas control connector

Page 46

4

Legend

7.burner pressure regulator

8.blank plate

9.gas control connector

Conversion to a different gas category	is

1.Isolate the water heater from the power supply (10.3 "Electrically isolating the appliance").

2.Shut off the gas supply.

3.Undo the screws of the plastic covers.

4.Carefully remove the covers from the top of the appliance.

5.Detach the connector (1) that connects the leads of the hot surface igniter and the flame probe to the controller.

6.Detach the three-part gas coupling (2) adjacent to the burner.

-Detach the air supply hose (3).

-Detach the pressure switch hose (4).

7.Remove the burner as complete assembly.

8.Place and fit the burner with parts from the conversion kit.

Note

The burner for LP gases can be recognised by the letter 'P' which is stamped into the metal of the gas/air distribution plate (5).

9.Select and fit the correct orifice from the conversion kit, based on the gas table (3.4.3 "Gas data"). The injector diameter is stamped into each injector

(6).

Conversion of gas control

8

9

7

IMD-0079b R2

46	Instruction manual SGE

Image 46

Contents Installation User Your installer Liability Read this manual carefullyTrademarks More informationGis Table of contents Maintenance frequency Service programTroubleshooting Status of the applianceWarranty certificate Performing maintenanceAppendices Table of contents About the appliance IntroductionWhat to do if you smell gas Regulations Symbol Target group Target groups Maintenance Forms of notationIntroduction Overview of this document Chapter Target groups DescriptionGis Introduction General working principle of the appliance Working principle of the applianceTopics covered in this chapter Appliances heating cycle Other settings that govern the control behaviour areWorking principle of the appliance Pressure switch Flame probe = time = Temperature 45 oC = Minimum tap water temperatureAppliance water temperature protection Gas valve Protection for the appliance IntroductionGas valve Appliance water temperature protectionPressure switch 4 FanVented installation Safety of the installationUnvented installation Flame probeExpansion valve Fluid temperatureSafety of the solar heating system Expansion vessel Pump of the solar heating systemEnvironmental InstallationPackaging ConditionsAppliance maximum floor load Air humidity and ambient temperatureWater composition Working clearances Appliance is supplied without accessories. Check Technical specificationsDimensions of the appliance See the tableDime Description SGE Nsion General and electrical specifications Gas dataGas category 3+ G31 37 mbar Installation diagram Hot water side See C in the installation diagram 3.5 Installation diagramWater connections, Unvented Cold water side Circulation pipeWater connections, Vented Condensation drainageRequirements for flue gas discharge materials Gas connectionAir supply and flue Introduction This section covers the following subjectsTypes of appliances Concentric connections Following example illustrates how to use the table SpecificationsPractical example of concentric chimney flue Appliance Diameter Maximum Parallel connectionsSubject Description Total length BendPractical example of parallel chimney flue Appliance with parallel flue gas discharge materialSolar heating system Preparation Connecting the mains voltageConnecting communication cable to solar heating system Electrical connection11.2 PreparationIsolating transformer Connecting the mains voltageConnecting continuous pump 11.2 PreparationConnecting an extra error signal Alarm OUT Connecting a program-controlled pumpConnecting an extra on mode switch Tank on Connecting extra head pump Connecting Q/T sensorConnecting pump station modulating pump Connecting the mains powerConnecting solar collector Connecting extra head pump Connecting tank sensorConnecting communication cable Connecting Q/T sensorChecking the supply pressure and burner pressure Procedure to check pressures Gas data Adjusting the pressureFinish off 3.13.4 Finalising 13.4 FinalisingOrifice assembly Conversion to a different gas categoryBurner pressure regulator Blank plate Gas control connector Conversion to a different gas categoryPage Conversion to a different gas category Filling Filling vented installations Filling the appliance Filling unvented installationsFilling Flushing with water Filling with glycolGis Draining Activate the Menu with Draining unvented InstallationsDraining Position the cursor in front of OFFDraining solar heating system Draining glycol-filled system Draining vented installationsPosition the cursor in front of OFF Confirm OFF with Gis Controls Electronic controller ON/OFF switchControl panel Meaning of iconsPC connection Navigation buttonsControl panel Status of the appliance Operating modes Error conditions Service conditionOperating modes Collector temperature warning Service conditionError conditions Q/T Sensor warningStarting the appliance Open 3.5 Installation diagram the manual gas valveStarting and running Starting the appliance Appliances heating cycleIcon is activated Message PRE Purge appears Starting and runningIcon is activated Message Ignition appears Shutting the appliance down for a long period Shut the appliance down for a brief period OFF modeShutting down Electrically isolating the applianceShutting down Main menu Switching on the on modeSet the water temperature via Notational convention for menu-related instructionsStarting and stopping the week program Setting water temperature during on modeWeek program Changing the appliances standard week programWeek program setting the water temperature Week program setting the switch- on timeWeek program setting the switch- off time Bring the cursor to SU Confirm withConfirm with Display shown in the figure will appear Week program setting the program- controlled pumpAdding times to a week program Scroll with to Start Operation Confirm withExtra period Confirm with Or use to cancelDeleting times from a week program To delete a period, proceed as followsSetting the water temperature Setting the switch-on timeSetting the switch-off time Setting the program-controlled pumpSetting day and time SettingsSetting menu language Adjustable settingsTable shows the correct settings Displaying appliance specifications SGEConfirm the minute setting with Scroll with to Specifications Confirm withDisplaying the error history Service programSetting the hysteresis Appliance Default RangeSetting legionella prevention Switching the pump on or offSetting the service interval Switching legionella prevention on and offSetting the heating fluid type in the solar heating system Solar heating system configurationSetting the drain-back tank Setting the solar limit temperatureSetting the central heating configuration Setting the QT sensor yes/noReading the energy contribution of the solar heating system Displayed errors TroubleshootingGeneral errors Distinction is made betweenDisplay is off Troubleshooting table for general errorsSymptom Cause Solution Remark Gas smell Start the appliance up 9 Starting and runningHot water supply Symptom Cause Solution Remark Water leakageExplosive ignition Insufficient or absentSymptom Cause Solution Remark Troubleshooting table for displayed errors Displayed errors S12 blocking error Code + Description Cause Solution RemarkS11 blocking error S13 blocking errorF01 blocking error Code + Description Cause Solution Remark S18 blocking errorF02 lock out error Maintenance 15.2 Preparation for maintenance. If there is Code + Description Cause Solution Remark F03 lock out errorFails to work correctly Engineer Pressure switch not ClosingNo gas Code + Description Cause Solution Remark F04 lock out errorF05 lock out error AreaF08 lock out error Code + Description Cause Solution Remark F06 lock out errorF07 lock out error Safety relay EngineerCode + Description Cause Solution Remark F10 lock out error F11 blocking errorC04 blocking error Code + Description Cause Solution Remark C02 lock out errorC03 blocking error Selected applianceE03 lock-out error Code + Description Cause Solution Remark E01 blocking errorTemperature E04 lock-out errorDisplayed warnings Maintenance, based on the number of burning hours Maintenance frequencyBest maintenance frequency can be determined Standard setting is 500 burning hoursMaintenance frequency Introduction Preparation for maintenance Performing maintenanceWait until the fan has stopped. The icon is then dimmed Performing maintenance Checking the anodes Water-side maintenance IntroductionDescaling and cleaning the tank Following steps must be carried out on the water sideClean the burners Cleaning condensation water dischargeGas-side maintenance Introduction Clean the orifices16.2 Tank warranty Warranty certificate16.1 General warranty Collector warranty Conditions for Installation and useWarranty certificate Menu structure of the main menu 17.2 Menu structure AppendicesThis appendix contains Heating systemMenu structure Appendices101 Electrical diagram for the appliance Electrical diagramController 0/I switch Extra on mode switchExtra error signal connection Temperature sensor T1 topElectrical diagram, solar heating system Solar system electrical diagram legend 106 Tset Pump Week program cardPeriod Example Period108 Index 1090308 Index