Vaillant ecoTEC plus Operating Instructions Manual

Also see for ecoTEC plus SERIES: Instructions for use Instructions for use Instructions for installation and servicing Instructions for use Instructions for installation and servicing

Vaillant ecoTEC plus Operating Instructions Manual Manual pdf 19 page image

OperationOperating instructions ecoTEC plus 0020116701_00 195> Use the plus button to set your requiredheating flow temperature.> Confirm the change by pressing the right-hand selectionbutton ("OK").5.7 Temporarily shutting down the boilerb Caution!Risk of damage caused by frost.Anti-freeze and monitoring devices are onlyactive while the boiler is connected up tothe power mains and the on/off switch ison.> Do not isolate the boiler from the powermains.> Leave your boiler switched on at the on/off switch.> Only switch the boiler on and off in nor-mal mode using the controller.> Make sure that the boiler cannot becomedamaged by frost.50125.13 Switching off the boiler> Press the on/off switch (1) to switch the boiler off.If the boiler is switched off, the display (2) turns off.i If the boiler is going to be unused for longerperiods (e.g. holiday), you should also close thegas isolator cock and the cold water stop valve,but only if there is no risk of frost.5.8 Protecting the heating system against frost5.8.1 Activating the frost protection functionYour Vaillant ecoTEC plus boiler is fitted with a frost protec-tion function:If the heating flow temperature falls below 5 °C when theon/off switch is on, the boiler comes into operation andheats the heat generation circuit to approx. 30 °C on boththe heating side and the hot water side (if available).b Caution!Risk of damage caused by frost.The frost protection function cannot guar-antee flow through the entire heating sys-tem, which means that parts of the heatingsystem may freeze and become damaged.> Make sure that the boiler remains onwhilst you are away.> Make sure that the rooms are heated suf-ficiently.5.8.2 Draining the heating systemAnother way to protect the heating system and the boilerfrom frost when they are switched off for a very long timeis to drain them. You must ensure that the heating systemand boiler are completely drained.All the cold and hot water pipes in the house and in theboiler must also be drained.> Ask your heating engineer to drain the heating system.