A.O. Smith SGE service manual Solar heating system configuration, Setting the drain-back tank

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is

•Now set the day and time the same way as described for setting an extra period in the week menu (11.11 "Programming an extra period"). In this case however, the pump will be automatically started.

•Select START to start.

12.9 Solar heating system configuration

Use the solar heating system settings menu to reach the menus shown here:

SETTINGS SOLAR »DRAIN BACK

^TYPE OF FLUID È DELTA T SOLAR

SOLAR DIFFERENCE

SOLAR LIMIT

QT SENSOR

CONTRIBUTION

12.9.1Setting the drain-back tank

Use this menu to specify whether the solar heating system is equipped with a drain-back tank for the heating fluid. Call up the menu as follows:

•:SETTINGS SOLAR DRAIN BACK

The default is NO.

DRAIN BACK YES

»NO

Note

The first time the appliance is started, it is necessary to check whether this setting corresponds with the configuration of the solar heating system.

12.9.2Setting the heating fluid type in the solar heating system

Use this menu to specify the type of heating fluid used to fill the solar heating system (2.6 "Protection for the solar heating system"). Call up the menu as follows:

•: SETTINGS SOLAR TYPE OF FLUID

You can select from Glycol and Water. The default is Glycol.

TYPE OF FLUID »Glycol Water

Note

The first time the appliance is started, it is necessary to check whether this setting corresponds with the configuration of the solar heating system.

Note

The setting Water is currently not possible

12.9.3Setting threshold temperature of pump in solar heating system

The pump of the solar heating system is switched on when the difference (9.3 "The appliance's heating cycle") between the temperature at the top of the solar collector (sensor S1) and that in the appliance (sensor S2) exceeds a certain value. This value can be set to between 5 and 20 °C. Call up this menu as follows:

•: SETTINGS SOLAR DELTA T SOLAR

The default value is 10 °C.

DELTA T SOLAR

10ÉC

12.9.4Setting the solar limit temperature

The solar limit temperature is the maximum water temperature obtained in the appliance via the solar heating system (measured by sensor T1).

This value can be set between 65 ... 80 °C. The default value is 65 °C.

If you set the solar limit higher than the set

point (11.4 "Setting the water temperature"), then once the set point is reached, the solar pump will be started to heat the water further. However, this only makes sense if the solar heating system is actually generating heat. This makes use of the difference between the temperature at the top of the solar collector (S1) and that in the appliance (measured by S2). This value is also adjustable (12.9.3 "Setting threshold temperature of pump in solar heating system").

Call up the menu for the solar limit as follows:

•: SETTINGS SOLAR SOLAR LIMIT SOLAR LIMIT

65ÉC

12.9.5Setting the solar difference

The solar difference is a value that influences how the heating cycle of the appliance proceeds. Call up the menu as follows:

Instruction manual SGE

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Contents Installation User Your installer More information Read this manual carefullyTrademarks LiabilityGis Table of contents Status of the appliance Service programTroubleshooting Maintenance frequencyPerforming maintenance Warranty certificateAppendices Table of contents Introduction About the applianceWhat to do if you smell gas Regulations Target groups Maintenance Forms of notation Symbol Target groupIntroduction Chapter Target groups Description Overview of this documentGis Working principle of the appliance Introduction General working principle of the applianceTopics covered in this chapter Other settings that govern the control behaviour are Appliances heating cycleWorking principle of the appliance Protection for the appliance Introduction = time = Temperature 45 oC = Minimum tap water temperatureAppliance water temperature protection Gas valve Pressure switch Flame probe4 Fan Appliance water temperature protectionPressure switch Gas valveFlame probe Safety of the installationUnvented installation Vented installationPump of the solar heating system Fluid temperatureSafety of the solar heating system Expansion vessel Expansion valveConditions InstallationPackaging EnvironmentalAir humidity and ambient temperature Appliance maximum floor loadWater composition Working clearances See the table Technical specificationsDimensions of the appliance Appliance is supplied without accessories. CheckDime Description SGE Nsion Gas data General and electrical specificationsGas category 3+ G31 37 mbar Installation diagram Circulation pipe See C in the installation diagram 3.5 Installation diagramWater connections, Unvented Cold water side Hot water sideCondensation drainage Water connections, VentedThis section covers the following subjects Gas connectionAir supply and flue Introduction Requirements for flue gas discharge materialsTypes of appliances Concentric connections Specifications Following example illustrates how to use the tablePractical example of concentric chimney flue Total length Bend Parallel connectionsSubject Description Appliance Diameter MaximumAppliance with parallel flue gas discharge material Practical example of parallel chimney flueElectrical connection Preparation Connecting the mains voltageConnecting communication cable to solar heating system Solar heating systemPreparation 11.211.2 Preparation Connecting the mains voltageConnecting continuous pump Isolating transformerConnecting extra head pump Connecting Q/T sensor Connecting a program-controlled pumpConnecting an extra on mode switch Tank on Connecting an extra error signal Alarm OUTConnecting the mains power Connecting pump station modulating pumpConnecting solar collector Connecting Q/T sensor Connecting tank sensorConnecting communication cable Connecting extra head pumpChecking the supply pressure and burner pressure Procedure to check pressures Adjusting the pressure Gas dataFinish off 3.13.4 Finalising Finalising 13.4Conversion to a different gas category Orifice assemblyConversion to a different gas category Burner pressure regulator Blank plate Gas control connectorPage Conversion to a different gas category Filling Filling the appliance Filling unvented installations Filling vented installationsFilling Filling with glycol Flushing with waterGis Draining Position the cursor in front of OFF Draining unvented InstallationsDraining Activate the Menu withDraining vented installations Draining solar heating system Draining glycol-filled systemPosition the cursor in front of OFF Confirm OFF with Gis Meaning of icons Electronic controller ON/OFF switchControl panel ControlsNavigation buttons PC connectionControl panel Operating modes Error conditions Service condition Status of the applianceOperating modes Q/T Sensor warning Service conditionError conditions Collector temperature warningStarting the appliance Appliances heating cycle Open 3.5 Installation diagram the manual gas valveStarting and running Starting the applianceStarting and running Icon is activated Message PRE Purge appearsIcon is activated Message Ignition appears Electrically isolating the appliance Shut the appliance down for a brief period OFF modeShutting down Shutting the appliance down for a long periodShutting down Notational convention for menu-related instructions Switching on the on modeSet the water temperature via Main menuChanging the appliances standard week program Setting water temperature during on modeWeek program Starting and stopping the week programBring the cursor to SU Confirm with Week program setting the switch- on timeWeek program setting the switch- off time Week program setting the water temperatureScroll with to Start Operation Confirm with Week program setting the program- controlled pumpAdding times to a week program Confirm with Display shown in the figure will appearTo delete a period, proceed as follows Confirm with Or use to cancelDeleting times from a week program Extra periodSetting the program-controlled pump Setting the switch-on timeSetting the switch-off time Setting the water temperatureAdjustable settings SettingsSetting menu language Setting day and timeScroll with to Specifications Confirm with Displaying appliance specifications SGEConfirm the minute setting with Table shows the correct settingsAppliance Default Range Service programSetting the hysteresis Displaying the error historySwitching legionella prevention on and off Switching the pump on or offSetting the service interval Setting legionella preventionSetting the solar limit temperature Solar heating system configurationSetting the drain-back tank Setting the heating fluid type in the solar heating systemSetting the QT sensor yes/no Setting the central heating configurationReading the energy contribution of the solar heating system Distinction is made between TroubleshootingGeneral errors Displayed errorsStart the appliance up 9 Starting and running Troubleshooting table for general errorsSymptom Cause Solution Remark Gas smell Display is offInsufficient or absent Symptom Cause Solution Remark Water leakageExplosive ignition Hot water supplySymptom Cause Solution Remark Troubleshooting table for displayed errors Displayed errors S13 blocking error Code + Description Cause Solution RemarkS11 blocking error S12 blocking errorCode + Description Cause Solution Remark S18 blocking error F01 blocking errorF02 lock out error Closing Code + Description Cause Solution Remark F03 lock out errorFails to work correctly Engineer Pressure switch not Maintenance 15.2 Preparation for maintenance. If there isArea Code + Description Cause Solution Remark F04 lock out errorF05 lock out error No gasSafety relay Engineer Code + Description Cause Solution Remark F06 lock out errorF07 lock out error F08 lock out errorF11 blocking error Code + Description Cause Solution Remark F10 lock out errorSelected appliance Code + Description Cause Solution Remark C02 lock out errorC03 blocking error C04 blocking errorE04 lock-out error Code + Description Cause Solution Remark E01 blocking errorTemperature E03 lock-out errorDisplayed warnings Standard setting is 500 burning hours Maintenance frequencyBest maintenance frequency can be determined Maintenance, based on the number of burning hoursMaintenance frequency Performing maintenance Introduction Preparation for maintenanceWait until the fan has stopped. The icon is then dimmed Performing maintenance Following steps must be carried out on the water side Water-side maintenance IntroductionDescaling and cleaning the tank Checking the anodesClean the orifices Cleaning condensation water dischargeGas-side maintenance Introduction Clean the burnersCollector warranty Conditions for Installation and use Warranty certificate16.1 General warranty 16.2 Tank warrantyWarranty certificate Heating system AppendicesThis appendix contains Menu structure of the main menu 17.2 Menu structureAppendices Menu structure101 Electrical diagram Electrical diagram for the applianceTemperature sensor T1 top Extra on mode switchExtra error signal connection Controller 0/I switchElectrical diagram, solar heating system Solar system electrical diagram legend 106 Example Period Week program cardPeriod Tset Pump108 109 IndexIndex 0308
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