Vaillant aroTHERM VWL 55/2 A Operating Instructions Manual

Contents

3 Product description10 Operating instructions aroTHERM 0020172515_053.2 Type designation and serialnumberApplicability: ItalyOR Switzerland11The type designation and serial numberare on the identification plate (1).3.3 Overview of the operatorcontrol elements of the VWZAI heat pump control module1231 Fault clearancekeyThe fault clear-ance key is usedto reset the heatpump faults andheat pump ac-cessory faults.2 Operating but-tons3 Display3.4 Digital Information andAnalysis System (DIA)The product is equipped with a Digital In-formation and Analysis System (DIA sys-tem). This system provides informationon the operating status of the product andhelps you to rectify faults.The display lights up– if you switch on the product or– if you press a button in the DIA systemwhile the product is switched on. At first,pressing this button does not trigger anyother function.The light goes out after one minute if youdo not press any button.50kWh/d12347561 Display of thedaily energyyield2 Display of thecurrent configur-ation of the right-hand selectionbutton3 Left- and right-hand selectionbuttons4 Minus and plusbuttons