A.O. Smith SGE Solar heating system, Electrical connection, Topics covered in this paragraph

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3.10 Solar heating system

Note

For the solar heating system connections, refer to the electrical diagram (17.4 "Electrical diagram, solar heating system") and the table. ( "Electrical connector block")

1.Connect the supply from the solar collector to the inlet (F) of the heat exchanger (55).

2.Connect the return pipe to the solar collector to the outlet (G) of the heat exchanger (55).

3.Connect the lead from the solar heating system controller to sensor S2, see:

-electrical diagram (17.3 "Electrical diagram for the appliance") and

-connections table (3.11.2 "Preparation").

4.Connect the communication cable between the solar heating system controller and the appliance, see:

-electrical diagram (17.4 "Electrical diagram, solar heating system") and

-connections table (3.11.2 "Preparation").

3.11Electrical connection

Warning

The installation diagram shows a non-return valve in the pump station. This non-return valve may be used solely in closed (pressure) systems. In systems with a drain-back tank, it is prohibited to fit a non-return valve in the solar heating system.

Warning

The installation should be carried out by an authorised installation engineer, in compliance with general and local regulations (1.3 "Regulations").

3.11.1Introduction

Topics covered in this paragraph:

•Preparation

•Connecting the mains voltage

Optionally, it is possible to connect an isolating transformer, a continuous pump, a program-controlled pump, an extra ON mode switch and an extra alarm signal to the appliance. For these options, see:

•Isolating transformer

•Connecting continuous pump

•Connecting a program-controlled pump

•Connecting an extra ON mode switch ("Tank ON")

•Connecting an extra error signal ('Alarm OUT' ) Connecting the solar heating system is also described:

•Connecting communication cable to solar heating system

Note

The optional components are not included in the rating for electrical power consumption stated in the table (3.4.2 "General and electrical specifications").

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 frequencyAppendices Performing maintenanceWarranty certificate Table of contents What to do if you smell gas Regulations IntroductionAbout the appliance Introduction Target groups Maintenance Forms of notationSymbol Target group Chapter Target groups Description Overview of this documentGis Topics covered in this chapter Working principle of the applianceIntroduction General working principle of the appliance Working principle of the appliance Other settings that govern the control behaviour areAppliances heating cycle 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 EnvironmentalWater composition Air humidity and ambient temperatureAppliance maximum floor load 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 Practical example of concentric chimney flue SpecificationsFollowing example illustrates how to use the table 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 solar collector Connecting the mains powerConnecting pump station modulating pump Connecting Q/T sensor Connecting tank sensorConnecting communication cable Connecting extra head pumpChecking the supply pressure and burner pressure Procedure to check pressures Finish off 3.13.4 Finalising Adjusting the pressureGas data 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 Filling the appliance Filling unvented installationsFilling vented installations Filling with glycol Flushing with waterGis Draining Position the cursor in front of OFF Draining unvented InstallationsDraining Activate the Menu withPosition the cursor in front of OFF Confirm OFF with Draining vented installationsDraining solar heating system Draining glycol-filled system Gis Meaning of icons Electronic controller ON/OFF switchControl panel ControlsControl panel Navigation buttonsPC connection Operating modes Operating modes Error conditions Service conditionStatus of the appliance 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 applianceIcon is activated Message Ignition appears Starting and runningIcon is activated Message PRE Purge 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 systemReading the energy contribution of the solar heating system Setting the QT sensor yes/noSetting the central heating configuration 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 errorF02 lock out error Code + Description Cause Solution Remark S18 blocking errorF01 blocking 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 Wait until the fan has stopped. The icon is then dimmed Performing maintenanceIntroduction Preparation for maintenance 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