Vaillant ecoTEC exclusive 832 Installation And Maintenance Instructions Manual

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Vaillant ecoTEC exclusive 832 Installation And Maintenance Instructions Manual Manual pdf 36 page image

Adapting the appliance to the heating system36 Installation and maintenance instructions ecoTEC exclusive 0020017768_0777.2.2 Setting the pump overrun timeThe pump overrun time for the heating operation is setin the factory to a value of 5 minutes. It can be setunder diagnosis point “d.1” within the range two minutesto 60 minutes. Under diagnosis point “d.18” you can setthe overrun behaviour of the pump to a different mode.Overrun: After completion of the heat demand the heat-ing pump continues to run for the time set under “d.1”.Continuous: The internal heating pump is switched onwhen the rotary knob for setting the heating feed tem-perature is not in the left-hand stop position and theheat demand is released by an external controller.Winter: The internal heating pump is switched on whenthe rotary knob for setting the heating feed temperatureis not in the left-hand stop position.7.2.3 Setting the maximum flow temperatureThe maximum feed temperature for the heating is set inthe factory to 75 °C. Under diagnosis point “d.71” it canbe set to between 40 and 85 °C.7.2.4 Setting the return temperature controlWhen connecting underfloor heating or wall heating tothe appliance which does not have its own temperatureregulation, the temperature regulation mode can bechanged from feed temperature regulation (factory set-ting) to return temperature regulation under diagnosispoint “d.17”.7.2.5 Setting the burner anti-cycle timeTFeed(target)[°C]Set maximum burner anti-cycle time [min]1 5 10 15 20 25 30 35 40 45 50 55 6020 2,0 5,0 10,0 15,0 20,0 25,0 30,0 35,0 40,0 45,0 50,0 55,0 60,025 2,0 4,5 9,2 14,0 18,5 23,0 27,5 32,0 36,5 41,0 45,0 50,0 54,530 2,0 4,0 8,5 12,5 16,5 20,5 25,0 29,0 33,0 37,0 41,0 45,0 49,535 2,0 4,0 7,5 11,0 15,0 18,5 22,0 25,5 29,5 33,0 36,5 40,5 44,040 2,0 3,5 6,5 10,0 13,0 16,5 19,5 22,5 26,0 29,0 32,0 35,5 38,545 2,0 3,0 6,0 8,5 11,5 14,0 17,0 19,5 22,5 25,0 27,5 30,5 33,050 2,0 3,0 5,0 7,5 9,5 12,0 14,0 16,5 18,5 21,0 23,5 25,5 28,055 2,0 2,5 4,5 6,0 8,0 10,0 11,5 13,5 15,0 17,0 19,0 20,5 22,560 2,0 2,0 3,5 5,0 6,0 7,5 9,0 10,5 11,5 13,0 14,5 15,5 17,065 2,0 1,5 2,5 3,5 4,5 5,5 6,5 7,0 8,0 9,0 10,0 11,0 11,570 2,0 1,5 2,0 2,5 2,5 3,0 3,5 4,0 4,5 5,0 5,5 6,0 6,575 2,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0Table 7.2 Effective burner anti-cycle timeThe burner is electronically locked for a specific timeafter each time it is switched off (“re-start interlock”) toavoid frequent switching on and off of the burner(energy losses).The burner anti-cycle time is only activated for theheating operation. Hot water operation during a burneranti-cycle time does not affect the timer.The individual anti-cycle time can be matched to thehydraulic and thermal properties of the heating installa-tion. In the factory the burner anti-cycle time is set to avalue of 20 minutes. It can be varied under diagnosispoint “d.02” within the range 2 minutes to 60 minutes.The individual effective anti-cycle time is calculatedfrom the momentary target feed temperature and theset maximum burner anti-cycle time.The timer can be reset or cancelled by actuating theappliance main switch. The remaining burner anti-cycletime left after switching off by the controller in heatingoperation can be called up under diagnosis point “d.67”.The individually effective burner anti-cycle times withrespect to the feed temperature and the maximum setburner anti-cycle time can be taken from Table 7.2.