Vaillant VRT 350 Operating Instructions Manual
Also see for VRT 350: Installation instructionsOperating instructionsOperating instructionsInstallation instructions
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5 Operating and display functions24 Operating instructions VRT 350 0020135485_005.3.1 Operating modes for the heating circuit5.3.1.1 Automatic mode«Operating mode» → «Automatic mode»– The automatic mode controls the heating circuit in ac-cordance with the set desired temperature and the settime periods.Within the time periods, the controller brings the room tem-perature to the set desired «Day» temperature (Comfortmode).Outside the time period, the controller brings the roomtemperature to the set desired «Set-back» temperature(Set-back mode).5.3.1.2 Summer mode«Operating mode» → «Summer mode »– The heating function is switched off for the heating cir-cuit and the frost protection function is active.The hot water generation controls the controller in accord-ance with the time period that has been set for this pur-pose.5.3.1.3 Comfort mode«Operating mode» → «Comfort mode »– The «Comfort mode» operating mode brings the heatingcircuit to the set desired «day temperature», withouttaking account of a time period.5.3.1.4 Set-back mode«Operating mode» → «Set-back mode»– The «Set-back mode» operating mode controls the heat-ing circuit to the set desired «Set-back» temperature,without taking time periods into consideration.5.3.1.5 System OFF«Operating mode» → «System OFF»– The heating function is switched off. The frost protectionfunction is activated.5.3.2 Modes for hot water productionThe operating mode for hot water generation correspondsto the heating circuit operating mode that has been set.You cannot set a deviating operating mode.5.3.2.1 Automatic modeThe automatic mode controls the hot water generationin accordance with the set desired temperature for «Hotwater circuit» and the set time periods. In the «Timer pro-grams» function, you have set time periods for hot watergeneration. If you have not set any time periods, the con-troller uses the time period set in the factory settings forhot water generation.Within the time period, hot water generation is switched onand maintains the hot water in the DHW cylinder at the pre-set temperature. Outside the period, hot water generationis switched off.5.3.2.2 Summer modeThe summer mode controls the hot water generation in ac-cordance with the set desired temperature for «Hot watercircuit» and the set time periods. In the «Timer programs»function, you have set time periods for hot water gener-ation. If you have not set any time periods, the controlleruses the time period set in the factory settings for hot wa-ter generation.Within the time period, hot water generation is switched onand maintains the hot water in the DHW cylinder at the pre-set temperature. Outside the period, hot water generationis switched off.5.3.2.3 Comfort modeThe comfort mode controls the hot water generation in ac-cordance with the set desired temperature for «Hot watercircuit» without taking time periods into account.5.3.2.4 Set-back modeHot water generation is switched off and the frost protec-tion function is activated.5.3.2.5 System offHot water generation is switched off and the Frost protec-tion function is active. |
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