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Samson 5476 manual Functions of the heating circuit, 5.1Weather-compensatedcontrol

Models: 5476

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Functions of the heating circuit

5 Functions of the heating circuit

Which controller functions are available depends on the selected system code number (Anl).

5.1Weather-compensated control

When weather-compensated control is used, the flow temperature is controlled according to the outdoor temperature. The heating characteristic in the controller defines the flow temperature set point as a function of the outdoor temperature (–> Fig. 2). The outdoor temperature required for weather-compensated control is measured at the outdoor sensor or received over a current input.

tVL Flow temperature

tA Outdoor temperature

Fig. 2 · Gradient characteristics

Measured at the outdoor sensor

Function	WE	Configuration
Outdoor temperature – Current input	OFF	FB18 = OFF

Received over (0)4 to 20 mA current input (a 50 Ω resistor must be connect to terminals 7(+) and GND (terminals ½) parallel to the current signal)

40EB 5476 EN

Page 40

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Samson 5476 manual Functions of the heating circuit, 5.1Weather-compensatedcontrol

Contents

Mounting and Operating Instructions EB 5476 EN Automation SystemHeating and District Heating Controller TROVIS Firmware version Edition DecemberDisclaimer of liability Contents ContentsContents 6.9.2Contents 9.1Controller with RS-232-Cport . . . . . . . . . . . . . . . . . . . . .1 Operation 1.1Operating elements1.1.1 Operating keys Operation1.1.2 Operating switches Operation1.2Operating modes Operation1.3Display Operation1 2 3 4 5 6 7 8 Fig. 1 · Icons1.4Displaying data Operation1.5Setting the controller time Operation1.6Setting the times-of-use OperationTime schedule Heating circuitOperation Select datapoint for times-of-use Display1.6.1 Entering public holidays Operation1.6.2 Entering vacation periods Operation1.7Correcting temperature set points Operation2.2Activating and deactivating functions 2 Start-up 2.1Setting the system code numberStart-up Proceed as follows Switch to the parameter level Start-up2.4Enter key number 2.3Changing parametersStart-up 2.5Calibrating sensors Start-up2.6Resetting to default values Start-up3 Manual operation Manual operationSystems SystemsDefault settings SystemsSystem Anl FB13Default settings SystemsFB13 = OFF Without RFSystems FB13 = OFFWithout RF FB20 = ONSystems FB13 = OFFWithout RF FB20 = ONDefault settings SystemsFB13 = OFF Without RFSystems SolarWith RüF1 With SF1Default settings SystemsFB13 = OFF Without RFSetting different from default setting: FB15 = ON SystemsFB13 = OFF Without RFSystems 32EB 5476 ENSystems EB 5476 ENSystems 34EB 5476 ENSystem Anl SystemsEB 5476 EN Systems 36EB 5476 ENSystem Anl SystemsEB 5476 EN Systems 38EB 5476 ENSystem Anl SystemsEB 5476 EN 5.1Weather-compensatedcontrol 5 Functions of the heating circuitFunctions of the heating circuit 5.1.1 Gradient characteristic Functions of the heating circuitFig. 3 · 4-pointcharacteristic 5.1.2 4-pointcharacteristicFunctions of the heating circuit 5.2Fixed set point control 5.3Underfloor heating5.4Deactivation depending on outdoor temperature 5.4.3 Summer mode5.4.1 OT deactivation value in rated operation 5.4.2 OT deactivation value in reduced operation5.5Delayed outdoor temperature adaptation 5.6Remote operationSelection of the operating mode –Automatic mode –Day mode –Night mode5.7Optimization Functions of the heating circuit5.9Adaptation 5.8Flash adaptationFunctions of the heating circuit 5.11 Potentiometer input 5.10 Pump managementFunctions of the heating circuit Functions of the DHW circuit 6.1 DHW heating in the storage tank systemFunctions of the DHW circuit Functions of the DHW circuit Start storage tank chargingFunctions of the DHW circuit Stop storage tank chargingFunctions of the DHW circuit Function6.6Circulation over the heat exchanger 6.7Intermediate heating operation Anl 2, 3 and6.8Parallel pump operation Anl 2, 3 and Functions of the DHW circuit6.9Priority circuit Anl 4, 5, 6, 7, 8 and 6.9.1 Reverse control6.9.2 Set-backoperation Functions of the DHW circuit6.11 Thermal disinfection of the DHW storage tank Functions of the DHW circuit7.4Return flow temperature limitation 7 System-widefunctions7.1Automatic summer time/winter time changeover 7.2Frost protectionSystem-widefunctions –the heating systems have been calibrated7.6Three-stepcontrol 7.5Condensate accumulation controlSystem-widefunctions 7.9Processing of external demand in RK1 7.7On/off controlSystem-widefunctions 7.10 Flow rate/capacity limitation 7.10.1 Limitation using pulse inputSystem-widefunctions 7.11 Locking manual levels 7.10.2 Limitation using 0/4 to 20 mA signalSystem-widefunctions 7.12 Setting a customized key number System-widefunctions8 Operational faults 8.2Collective error alarmOperational faults 8.1Sensor failure8.4Error status register 8.3Temperature monitoringOperational faults 9 Communication Communication9.1Controller with RS-232-Cport Communication9.2Controller with serial RS-485interface CommunicationCommunication Station address ST.-NO9.4Meter bus interface Communication9.4.1 Activating the meter bus CommunicationInstallation Appendix Capacity limitation9.5Memory module 10 InstallationInstallation Controller housing Dimensions in mmInstallation Fig. 9 · Installation11 Electrical connection Electrical connectionConnecting the sensors Electrical connectionElectrical connection Systems Anl 1 toSystem Anl 78EB 5476 ENElectrical connection Systems Anl 5 toSystem Anl EB 5476 ENElectrical connection 80EB 5476 EN12 Appendix 12.1 Function block list AppendixAppendix FunctionSetting only possible after entering key number Setting only possible after entering key numberAppendix FunctionSetting only possible after entering key number Setting only possible after entering key numberAppendix FunctionSetting only possible after entering key number Setting only possible after entering key numberSetting only possible after entering key number Setting only possible after entering key numberSetting only possible after entering key number Setting only possible after entering key numberSetting only possible after entering key number Setting only possible after entering key numberParameter list 12.2Appendix Appendix DisplayAppendix DisplayDisplay AppendixCan only be set after entering the key number Appendix DisplayDisplay AppendixSystem Anl 9, underfloor heating circuit Appendix DisplayDisplay AppendixDHW heating Display AppendixCan only be set after entering the key number Appendix DisplayAppendix EB 5476 ENSTOP ST.-NR12.3 Sensor resistance tables Appendix12.4 Technical data Appendix12.5 Customer data System code number Function block settingsFunction block parameter settings AppendixAppendix Function block parametersParameter settings AppendixParameters Appendix Public holidays and vacationsAppendix Frequently used abbreviationsKey number 1732Appendix 106EB 5476 ENAppendix EB 5476 ENIndex Index Operating levelIndex Three-stepcontrolEB 5476 EN 00:00 00:00Fig. 11 · Level structure of TROVIS 112EB 5476 ENPage EB 5476 EN 2007-09