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Samson 5476 manual 6.6Circulation over the heat exchanger, 6.8Parallel pump operation Anl 2, 3 and

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6.6Circulation over the heat exchanger

Functions of the DHW circuit

6.5Circulation pump operation during storage tank charging

With the setting FB26 = ON, the circulation pump continues operation according to the pro- grammed time schedule even during storage tank charging.

With the setting FB26 = OFF, the circulation pump is switched off as soon as the storage tank charging pump is activated. The circulation pump returns to operate according to the time schedule when the storage tank charging pump has been switched off again.

Function	WE	Configuration
Circulation pump	OFF	FB26

6.6Circulation over the heat exchanger

In systems, in which the DHW heating takes place in the storage tank charging system from the primary circuit (Anl 5, 11), it is possible to keep the control of the charging temperature even when the active storage tank charges are finished.

Function	WE	Configuration
Circulation over the heat exchanger	OFF	FB32 = ON

6.7Intermediate heating operation (Anl 2, 3 and 9)

With the setting FB9 = OFF, heating operation of the UP1 heating circuit is reactivated for a pe- riod of 10 minutes after 20 minutes of priority (heating deactivated during DHW heating). Dur- ing this time, DHW heating is interrupted.

Function	WE	Configuration
Parallel pump operation	OFF	FB9 = OFF, select “20“

Note!

In system Anl 2 with circulation pump and switchover valve, the Intermediate heating operati- on function, set FB9 = ON and select “US“ and “20“.

6.8Parallel pump operation (Anl 2, 3 and 9)

When the Parallel pump operation function is activated, the circulation pump UP1 remains switched on during DHW heating unless certain operating situations occur. These situations in- clude, for example, those when the boost of the flow temperature exceeds 10 °C, or when the maximum flow temperature is exceeded. In this case, the controller applies priority operation, if necessary with intermediate heating.

54EB 5476 EN

Image 54

Samson 5476 manual 6.6Circulation over the heat exchanger, 6.7Intermediate heating operation Anl 2, 3 and

Contents

Heating and District Heating Controller TROVIS Mounting and Operating Instructions EB 5476 ENAutomation System Firmware version Edition DecemberDisclaimer of liability Contents ContentsContents 6.9.2Contents 9.1Controller with RS-232-Cport . . . . . . . . . . . . . . . . . . . . .1.1.1 Operating keys 1 Operation1.1Operating elements Operation1.1.2 Operating switches Operation1.2Operating modes Operation1 2 3 4 5 6 7 8 1.3DisplayOperation Fig. 1 · Icons1.4Displaying data Operation1.5Setting the controller time OperationTime schedule 1.6Setting the times-of-useOperation 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 Start-up 2.1Setting the system code number 2.2Activating and deactivating functionsStart-up Proceed as follows Switch to the parameter level Start-up2.3Changing parameters 2.4Enter key numberStart-up 2.5Calibrating sensors Start-up2.6Resetting to default values Start-up3 Manual operation Manual operationSystems SystemsSystem Anl Default settingsSystems FB13FB13 = OFF Default settingsSystems Without RFWithout RF SystemsFB13 = OFF FB20 = ONWithout RF SystemsFB13 = OFF FB20 = ONFB13 = OFF Default settingsSystems Without RFWith RüF1 SystemsSolar With SF1FB13 = OFF Default settingsSystems Without RFFB13 = OFF Setting different from default setting: FB15 = ONSystems Without RFSystems 32EB 5476 ENSystems EB 5476 ENSystems 34EB 5476 ENSystems System AnlEB 5476 EN Systems 36EB 5476 ENSystems System AnlEB 5476 EN Systems 38EB 5476 ENSystems System AnlEB 5476 EN 5 Functions of the heating circuit 5.1Weather-compensatedcontrolFunctions of the heating circuit 5.1.1 Gradient characteristic Functions of the heating circuit5.1.2 4-pointcharacteristic Fig. 3 · 4-pointcharacteristicFunctions of the heating circuit 5.2Fixed set point control 5.3Underfloor heating5.4.1 OT deactivation value in rated operation 5.4Deactivation depending on outdoor temperature5.4.3 Summer mode 5.4.2 OT deactivation value in reduced operationSelection of the operating mode –Automatic mode 5.5Delayed outdoor temperature adaptation5.6Remote operation –Day mode –Night mode5.7Optimization Functions of the heating circuit5.8Flash adaptation 5.9AdaptationFunctions of the heating circuit 5.10 Pump management 5.11 Potentiometer inputFunctions 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 Function6.8Parallel pump operation Anl 2, 3 and 6.6Circulation over the heat exchanger6.7Intermediate heating operation Anl 2, 3 and Functions of the DHW circuit6.9.2 Set-backoperation 6.9Priority circuit Anl 4, 5, 6, 7, 8 and6.9.1 Reverse control Functions of the DHW circuit6.11 Thermal disinfection of the DHW storage tank Functions of the DHW circuit7.1Automatic summer time/winter time changeover 7.4Return flow temperature limitation7 System-widefunctions 7.2Frost protectionSystem-widefunctions –the heating systems have been calibrated7.5Condensate accumulation control 7.6Three-stepcontrolSystem-widefunctions 7.7On/off control 7.9Processing of external demand in RK1System-widefunctions 7.10.1 Limitation using pulse input 7.10 Flow rate/capacity limitationSystem-widefunctions 7.10.2 Limitation using 0/4 to 20 mA signal 7.11 Locking manual levelsSystem-widefunctions 7.12 Setting a customized key number System-widefunctionsOperational faults 8 Operational faults8.2Collective error alarm 8.1Sensor failure8.3Temperature monitoring 8.4Error status registerOperational 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 limitation10 Installation 9.5Memory moduleInstallation Installation Controller housingDimensions in mm Fig. 9 · Installation11 Electrical connection Electrical connectionConnecting the sensors Electrical connectionSystem Anl Electrical connectionSystems Anl 1 to 78EB 5476 ENSystem Anl Electrical connectionSystems Anl 5 to EB 5476 ENElectrical connection 80EB 5476 EN12 Appendix 12.1 Function block list AppendixAppendix FunctionAppendix Setting only possible after entering key numberSetting only possible after entering key number FunctionAppendix Setting only possible after entering key numberSetting only possible after entering key number 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 number12.2 Parameter listAppendix Appendix DisplayAppendix DisplayAppendix DisplayCan only be set after entering the key number Appendix DisplayAppendix DisplaySystem Anl 9, underfloor heating circuit Appendix DisplayAppendix DisplayDHW heating Appendix DisplayCan only be set after entering the key number Appendix DisplaySTOP AppendixEB 5476 EN ST.-NR12.3 Sensor resistance tables Appendix12.4 Technical data AppendixFunction block parameter settings 12.5 Customer dataSystem code number Function block settings AppendixAppendix Function block parametersParameter settings AppendixParameters Appendix Public holidays and vacationsAppendix Frequently used abbreviationsAppendix Key number1732 106EB 5476 ENAppendix EB 5476 ENIndex Index Operating levelIndex Three-stepcontrolEB 5476 EN Fig. 11 · Level structure of TROVIS 00:0000:00 112EB 5476 ENPage EB 5476 EN 2007-09