Vaillant VRT 350f Operating Instructions Manual

Also see for VRT 350f: Installation instructions Installation manual Installation instructions

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Vaillant VRT 350f Operating Instructions Manual Manual pdf 10 page image

4 Operating10 Operating instructions VRT 350f 0020131979_003.5 Frost protection functionThe frost protection function protects the heating systemand apartment from frost damage.The frost protection function monitors the room temperat-ure. If the room temperature– falls below 5 °C, the controller switches the heater onand controls the system to a target room temperature of5 °C.– exceeds 5 °C, the heater is switched off but the roomtemperature monitoring remains active.4 Operating4.1 Operating structure4.1.1 Access level for the operatorThrough the access level for the operator, you access im-portant information and set-up options which do not requireany special prior knowledge. Via a menu structure, you canaccess configurable or read-only values.4.1.2 Access level for the skilled tradesmanThe skilled tradesman will set further values for the heatinginstallation via the access level for the skilled tradesman.The settings may only be made by someone with specialistknowledge; this level is therefore code-protected.4.1.3 Menu structure designThe menu structure of the controller is split into threelevels. There are two selection levels and one setting level.From the basic display, you can access selection level 1 and,from there, you can access the menu structure for one levelup or down. The setting level is accessed from the lowestselection level.