Vaillant VWL 57/5 IS Operating, Installation And Maintenance Instructions

Also see for VWL 105/5 AS S2: Operating instructions Operating instructions Operating instructions

Contents

7 Start-up36 Installation and maintenance instructions Hydraulic station 0020257319_02NoteIf you fill the heating circuit at an externallocation, you must install an additional mano-meter to check the pressure in the installa-tion.13. Close the filling device.14. Then check the heating installation pressure again (ifrequired, repeat the filling procedure).15. Remove the filling hose from the filling device andscrew the screw cap back on.16. Set automatic mode for the prioritising diverter valveagain (→ Page 34).◁ When the product starts up, the diverter valve auto-matically moves to the "Heating circuit" outlet posi-tion.7.5 Purging1. Open the automatic air vent.2. Start the purge programme for the building circuit P06using: Menu Installer level 17 Test menu Check pro-grammes Purge building circuit P06.3. Allow the P06 function to run for 15 minutes.◁ The programme runs for 15 minutes. For 7.5minutes of that time, the prioritising diverter valveis at the "heating circuit" position. The prioritisingdiverter valve then switches to the "domestic hotwater cylinder" position for 7.5 minutes.4. Once both purge programmes have finished, checkwhether the pressure in the heating circuit is 1.5 bar.◁ Top up with water if the pressure is below 1.5 bar.7.6 Starting up the productCaution.Risk of material damage in the event offrost.If the installation is switched on when there isice in the lines, the installation may be mech-anically damaged.▶ You must observe the frost protectioninstructions.▶ Do not switch the installation on whenthere is a risk of frost.NoteThe product does not have an on/off switch. Theproduct is switched on as soon as it is connectedto the power grid.1. Use the partition that is installed on-site (e.g. fuses orpower switches) to switch on the product.◁ The display shows the basic display.◁ The basic display appears on the system controldisplay.◁ The system's products start up.◁ The heating and domestic hot water demand areactivated by default.2. When you start up the heat pump system for the firsttime after electrical installation, the installation assist-ants for the system components will start automatically.Set the required values on the control panel of the in-door unit first, then on the optional system control andthe other system components.7.7 Running the installation assistantsThe installation assistant is launched when the product isswitched on for the first time. It provides direct access tothe most important check programmes and configurationsettings for starting up the product.Menu → Installer level → 17 → Configuration.Confirm the launch of the installation assistant. All heatingand domestic hot water demands are blocked whilst the in-stallation assistant is active.To access the next item, confirm by pressing Next in eachcase.If you do not confirm the launch of the installation assistant,it is closed 10 seconds after you switch on the unit and thebasic display then appears.7.7.1 Setting the language▶ Press OK twice to confirm the set language and to avoidunintentionally changing it.▽ If you have accidentally set a language that you donot understand:▶ You can change the language as follows:▶ Menu → Basic settings → Language.▶ Select the required language.▶ Confirm the selection by pressing OK.7.7.2 Telephone number for the competent personYou can store your telephone number in the product menu.The end user can display it in the information menu. Thetelephone number can be up to 16 digits long and must notcontain any spaces. If the telephone number is shorter, endthe entry after the last digit by pressing .All of the digits to the right will be deleted.7.7.3 Ending the installation assistant▶ Once you have run through the installation assistant suc-cessfully, confirm by pressing .◁ The installation assistant will close and will not launchagain when the product is next switched on.7.8 Energy balance controlThe energy balance is the integral from the differencebetween the flow temperature actual value and target value,which is added up every minute. If the set heat deficit (WE =-60°min in heating mode) is reached, the heat pump starts.If the supplied heat volume corresponds to the heat deficit(integral = 0°min), the heat pump is switched off.The energy balancing is used for heating and cooling mode.