Table Of Contents - Vaillant ecoFIT sustain Series Installation And Maintenance Instructions Manual

Installation and maintenance
instructions
Contents
1 Safety .................................................................... 3
1.1 Intended use .......................................................... 3
1.2 Qualification ........................................................... 3
1.3 General safety information .................................... 3
1.4 Regulations (directives, laws, standards) .............. 5
1.5 List of relevant standards for Great Britain and
Ireland.................................................................... 5
2 Guarantee and Customer Service...................... 6
3 Technical data...................................................... 7
4 Notes on the documentation .............................. 9
5 Product description............................................. 9
5.1 CE marking ............................................................ 9
5.2 Information on the identification plate.................... 9
5.3 Functional elements: Combi boiler ...................... 10
5.4 Safety Devices..................................................... 10
6 Set-up.................................................................. 11
6.1 Checking the scope of delivery............................ 11
6.2 Dimensions .......................................................... 11
6.3 Installation site ..................................................... 12
6.4 Minimum clearances............................................ 12
6.5 Compartment Ventilation ..................................... 12
6.6 Air/flue pipe.......................................................... 12
6.7 Using the mounting template ............................... 15
6.8 Wall-mounting the product................................... 15
6.9 Removing/installing the front casing.................... 16
6.10 Removing/installing the side section ................... 16
7 Installation.......................................................... 17
7.1 Preparing for installation ...................................... 17
7.2 Descaling the water ............................................. 17
7.3 Check compliance with the local gas group ........ 17
7.4 Gas and water connections ................................. 17
7.5 Connecting the drain pipework for the
expansion relief valve .......................................... 17
7.6 Connecting the condensate discharge pipe ........ 18
7.7 Flue installation.................................................... 20
7.8 Electrical installation ............................................ 20
8 Operation............................................................ 23
8.1 Operating concept ............................................... 23
8.2 Installer level overview......................................... 23
8.3 Calling up the installer level ................................. 23
8.4 Live Monitor (status codes) ................................. 23
8.5 Setting the hot water temperature ....................... 23
8.6 Using check programmes .................................... 23
9 Start-up ............................................................... 24
9.1 Carrying out the initial start-up............................. 24
9.2 Checking and treating the heating water/filling
and supplementary water .................................... 24
9.3 Filling the condensate trap .................................. 25
9.4 Switching on the product ..................................... 25
2
9.5 Avoiding danger arising from insufficient water
pressure............................................................... 25
9.6 Flushing the heating installation for the first
time ("cold") ......................................................... 25
9.7 Filling and purging the heating installation .......... 25
9.8 Filling the domestic hot water circuit.................... 26
9.9 Checking the gas setting ..................................... 26
9.10 Thoroughly flushing the heating installation
("hot")................................................................... 27
9.11 Checking leak-tightness ...................................... 28
10 Adapting the unit to the heating
installation.......................................................... 28
10.1 Setting the burner anti-cycling time ..................... 28
10.2 Setting the pump output....................................... 28
10.3 Setting the bypass valve...................................... 29
10.4 Setting the domestic hot water temperature........ 29
11 Handing over to the end user ........................... 29
12 Inspection and maintenance ............................ 30
12.1 Complete Service Interval Record section .......... 30
12.2 Using original seals.............................................. 30
12.3 Observing inspection and maintenance
intervals ............................................................... 30
12.4 Checking the CO₂ content ................................... 30
12.5 Setting the CO₂ content ....................................... 30
12.6 Removing the gas-air mixture unit....................... 30
12.7 Cleaning the heat exchanger............................... 31
12.8 Checking the burner ............................................ 31
12.9 Checking the ignition electrode ........................... 31
12.10 Cleaning the condensate trap.............................. 32
12.11 Cleaning the strainer in the cold water inlet......... 32
12.12 Cleaning the heating filter .................................... 32
12.13 Installing the gas-air mixture unit ......................... 32
12.14 Draining the product ............................................ 33
12.15 Checking the pre-charge pressure of the
expansion vessel ................................................. 33
12.16 Completing inspection and maintenance work .... 33
13 Troubleshooting ................................................ 33
13.1 Eliminating faults.................................................. 33
13.2 Calling up and clearing the fault memory ............ 33
13.3 Resetting parameters to factory settings ............. 33
13.4 Preparing the repair work .................................... 33
13.5 Replacing defective components......................... 34
13.6 Checking the product for leak-tightness .............. 36
14 Decommissioning the product ......................... 36
15 Recycling and disposal..................................... 36
Appendix ............................................................................ 37
A Inspection and maintenance work ................... 37
B Overview of diagnostics codes ........................ 38
Status codes - Overview .................................. 42
C
D Overview of fault codes .................................... 43
E Wiring diagram: Combi boiler .......................... 45
F Wiring diagram: Combi boiler (35 kW) ............ 46
G Commissioning Checklist................................. 47
H Commissioning Flow Chart .............................. 51
Index ................................................................................... 52
Installation and maintenance instructions ecoFIT sustain 0020230529_06