Operating Manual VRC 430 0020042468_0216The time for the end of the time window 1 should be setaccordingly.The desired comfort temperature for time window 1 isset as follows:⇒ Rotate the right-hand dial until the cursoris infront of the field for the entering comfort tempera-ture for time window 1.⇒ Press the right-hand dial.The input field is highlighted.⇒ Turn the right-hand dial to select the desired com-fort temperature (the temperature jumps by 0.5 °Cfor every click).⇒ When the comfort temperature is displayed, confirmby pressing the right-hand dial.Note!The controller helps the operator to programmethe time windows: You can only enter sequen-tial entries. The timer for a subsequent windowcannot be earlier than a previous one.A time window may only be between 0:00 and24:00.An existing time window can be deleted as fol-lows: Set the start time and the end of a win-dow to the same time.Note!Set the timer for warm water generation andcirculation pump in the same way as for the ex-ample, heating circuit 1. There is no need toenter a comfort temperature for hot water gen-eration and circulation pump.4.7.2 Programming holiday periodsIf you will not be home for an extended period, you canset a lower target room temperature for that period.This will save heating energy. The controller ensuresthat the heater heats up the living rooms to the settemperature only.You can, for example, specify a target room tempera-ture of 15 °C if you are on holiday from the 10th to the24th of February. The rooms will only be heated to15 °C during this period.You can also select the frost protection function insteadof the target room temperature.Proceed as follows to programme a holiday period:⇒ Turn the left-hand dial until screen 7 "holiday pro-gramming for entire system" is displayed.> Set starting dayHoliday programming 7Period:for cpl. systemRoom temp.:10 . 02 . 06 - . .Frost prot.Fig. 4.14 Screen 7 (example)⇒ Turn the right-hand dial until the cursor isat thebeginning of the start date.The comment field contains the text "Set starting day".⇒ Press the right-hand dial.The input field is highlighted.⇒ Turn the right-hand dial until the desired startingday is displayed.⇒ Press the right-hand dial.The start date is set. The display jumps highlighted tonormal.⇒ Set the month and year in which the start date oc-curs in the same way.The comment field contains the text "Set startingmonth" or "Set starting year".⇒ Set the end date for the holiday period in the sameway.Enter the target room temperature as follows:⇒ Turn the right-hand dial until the cursoris in frontof the input field for the target room temperature.4 Operation16