Vaillant ecoFIT sustain 835 Operating Instructions Manual

Also see for ecoFIT sustain 825: Installation and maintenance instructions Installation and maintenance instructions Installation and maintenance instructions

Contents2 Operating instructions ecoFIT sustain 0020230530_01Contents1 Safety ............................................ 31.1 Action-related warnings ................. 31.2 Intended use .................................. 31.3 General safety information............. 42 Notes on the documentation ...... 72.1 Observing other applicabledocuments ..................................... 72.2 Storing documents......................... 72.3 Applicability of the instructions....... 73 Product description..................... 73.1 Front view ...................................... 73.2 Control elements............................ 73.3 Displayed symbols......................... 83.4 Information on the identificationplate ............................................... 83.5 Serial number ................................ 93.6 CE label ......................................... 93.7 Benchmark..................................... 94 Operation.................................... 104.1 Operating concept ....................... 104.2 Basic display................................ 104.3 Adjustment and display levels ..... 104.4 Cabinet-type casing ..................... 114.5 Opening the isolator devices ....... 114.6 Starting up the product ................ 114.7 Switching on the product ............. 114.8 Setting the heating flowtemperature ................................. 114.9 Setting the hot watertemperature ................................. 114.10 Switching Comfort mode on andoff................................................. 124.11 Switching off the product'sfunctions ...................................... 124.12 Guaranteeing the correctfilling pressure of the heatingsystem ......................................... 124.13 Protecting the heatinginstallation against frost ............... 134.14 Switching the product tostandby mode .............................. 145 Troubleshooting ........................ 145.1 Detecting and rectifying faults...... 145.2 Calling up (Live monitor) statuscodes ........................................... 146 Care and maintenance .............. 146.1 Maintenance ................................ 146.2 Caring for the product .................. 146.3 Reading maintenancemessages .................................... 146.4 Checking the condensate drainpipework and tundish................... 147 Decommissioning...................... 157.1 Temporarily decommissioningthe product................................... 157.2 Permanently decommissioningthe product................................... 158 Recycling and disposal............. 159 Guarantee and customerservice ........................................ 159.1 Guarantee.................................... 159.2 Customer service......................... 15Appendix ............................................... 16A Status codes – Overview........... 16B Troubleshooting ........................ 16