ecoTEC exclusive installation and maintenance instructions / 0020017768_042Contents1 Notes on the documentation........................... 31.1 Storage of the documents ...................................... 31.2 Safety instructions and symbols ........................... 31.3 Validity of the manual ............................................. 32 Description of the appliance ........................... 42.1 Design .......................................................................... 42.2 Type overview ............................................................ 42.3 CE label ........................................................................ 42.4 Gas council numbers ................................................ 52.5 Intended use ............................................................... 52.6 Identification plate .................................................... 53 Safety instructions and regulations .............. 53.1 Safety instructions ................................................... 53.1.1 Installation and setting ............................................ 53.1.2 If you smell gas.......................................................... 53.1.3 Changes to the surroundings of the heatingdevice ........................................................................... 53.2 Related documents ................................................... 64 Assembly ........................................................... 74.1 Scope of delivery ...................................................... 74.1.1 Transporting the appliance .................................... 74.2 Dimensioned drawing and dimensions forconnection .................................................................. 104.3 Installation site .......................................................... 114.4 Required minimum gaps/assembly clearances . 114.5 Mounting the appliance ........................................... 124.6 Removing the front case......................................... 125 Installation......................................................... 125.1 General instructions for heating system ............ 125.2 Gas connection .......................................................... 125.3 Hot water and cold water connections ............... 135.4 Heating connection .................................................. 145.5 Pressure Relief Valve ............................................... 145.6 Flue pipe ...................................................................... 155.6.1 100 mm standard flue pipe ..................................... 155.6.2 Optional 125 mm flue pipe ...................................... 155.7 Termination of the flue pipe .................................. 155.8 Air connection............................................................ 165.9 Condensate discharge ............................................. 175.10 Electrical connection ................................................ 175.10.1 Mains connection ...................................................... 175.10.2 Connection of controllers, accessories andexternal installation components ......................... 185.10.3 External electrical controllers (non eBUS) ......... 185.10.4 Details for the connection of an external timerto the connection rail............................................... 195.10.5 Optional plug-in timers by Vaillant ....................... 195.10.6 Wiring diagrams......................................................... 206 Start-up.............................................................. 226.1 Filling the installation............................................... 226.1.1 Filling and venting from the heating side ........... 236.1.2 First flushing of the system ................................... 246.1.3 Filling and venting from the hot water side ....... 246.1.4 Filling the condense trap ........................................ 246.2 Checking the gas setting ......................................... 246.2.1 Gas pressure statement - Natural gas................. 246.2.2 Checking the connection pressure (gas inletworking pressure) ..................................................... 256.2.3 Checking CO2 content and setting if necessary(setting the air figure) ............................................. 266.3 Checking the equipment function......................... 266.3.1 Heating ........................................................................ 276.3.2 Hot water function.................................................... 276.3.3 Subsequent flushing through of the heatingsystem ("hot") ........................................................... 276.4 Handing over the appliance to the owner .......... 287 Adapting the appliance to the heating system............................................................................. 297.1 Selection and setting the parameters ................. 297.2 Overview of the settable installation parameters ... 307.2.1 Setting the heating partial load ............................ 307.2.2 Setting the pump overrun time ............................. 307.2.3 Setting the maximum flow temperature............. 307.2.4 Setting the return temperature control.............. 307.2.5 Setting the burner anti-cycle time ....................... 317.2.6 Determination of the maintenance interval/maintenance display ................................................ 317.2.7 Setting the pump output ......................................... 327.3 Adjusting the bypass valve ..................................... 328 Inspection and maintenance ........................... 338.1 Inspection and maintenance intervals................. 338.2 General inspection and maintenanceinstructions ................................................................. 338.3 Filling/draining the heating installation .............. 358.3.1 Filling the unit and heating installation............... 358.3.2 Draining the unit ....................................................... 358.3.3 Draining the entire installation.............................. 358.4 Servicing the compact thermal module .............. 358.4.1 Dismantle compact thermal module .................... 358.4.2 Clean the heat exchanger ....................................... 368.4.3 Checking the burner ................................................. 368.4.4 Installing the burner assembly .............................. 368.5 Maintaining the secondary heat exchanger ....... 378.6 Cleaning the condense trap ................................... 378.7 Checking the expansion vessel.............................. 388.8 Checking the gas setting ......................................... 388.8.1 Checking the connection pressure (gas inletworking pressure) ..................................................... 388.8.2 Checking CO2 content and adjusting ifnecessary .................................................................... 388.9 Test operation............................................................ 389 Troubleshooting ................................................ 399.1 Diagnostics ................................................................. 399.1.1 Status codes ............................................................... 399.1.2 Diagnosis codes ......................................................... 409.1.3 Error codes ................................................................. 439.1.4 Error memory ............................................................ 439.2 Test programs............................................................ 449.3 Resetting parameter to factory settings ............ 44