Vaillant ecoTEC plus 937 Operating Manual

Also see for ecoTEC plus 937: Operating manual Instructions for installation and servicing Instructions and maintenance instructions

Contents

Vaillant ecoTEC plus 937 Operating Manual Manual pdf 6 page image

Operating instructions ecoTEC plus 937 / 0020031573_0264 Operation4.1 Overview of the operating elements11098762345Fig. 4.1 Operating elements ecoTECThe operating elements have the following functions:1 Display indicating the current heating flow temperature,the filling pressure of the heating system, the operating modeand other additional information2 Button „i“ for calling up information3 Controller (accessory)4 Pressure gauge showing the filling or operating pressure inthe heating system5 on /off switch6 Button „+“ to move on through the display screens7 Button „-“ to move backwards through the display screensand for displaying the filling pressure of the heating system8 Button „Fault Reset“9 Rotary knob for setting the heating flow temperature10 Rotary knob for setting the domestic hot water temperature,for switching the warmstart function on and off and forswitching the hot water storage function on and offDigital information and analysis system1Fig. 4.2 Display ecoTECThe ecoCTEC plus units are fitted with a digital informa-tion and analysis system. This system provides informa-tion on the operating status of your appliance and helpsyou deal with problems. During normal operation, thedisplay (1) shows the current heating flow temperature(in this example 45 °C). In the event of a fault, an errorcode appears instead of the temperature.You can also see the following information from thesymbols displayed:1 The current heating flow temperature, the heatingsystem filling pressure or a status or error codeFlue problemFlue problemOnly in combination with the vrnetDIALOG:As long as this symbol appears in the display, aheating feed temperature and hot water outlettemperature is set via the vrnetDIALOG accesso-ry, which means the appliance uses temperaturesother than those set using the rotary knobs (9)and (10)This operating mode can only be ended:– via vrnetDIALOG or– by altering the temperature setting onthe rotary knobs (9) or (10) by more than 5 K.This operating mode cannot be ended:– by pushing the button (8) „Fault reset“ or– by switching the unit off or on.Hot water preparation activepermanently on: Operating mode heatingflashes: Burner lockout time activeHot water preparation active (only on VCW)permanently on: Hot water being drawn-offflashing: Hot water storage tank is beingheated, burner onWarmstart function activePermanently on:– Warmstart function is in preparation– Storage tank mode active (only on ac-toSTOR VIH CL 15 S)Flashing – Warmstart in operation,burner on– Storage tank charging mode, burner onHeating pump in operationActuating internal gas valveFlame with cross:Fault during burner operation; Unit is switched offFlame without crossBurner operation normal4 Operation