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Vaillant ecoTEC plus 831 Manual

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2 Instructions for use ecoTEC
Contents
Appliance characteristics . . . . . . . . . . . . . . . . . . . . . 2
1 Notes on these instructions . . . . . . . . . . . . . . 3
1.1 Storage of the documents . . . . . . . . . . . . . . . . . . . 3
1.2 Symbols used in this manual . . . . . . . . . . . . . . . . . 3
1.3 CE marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Data badge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Setup and adjustments . . . . . . . . . . . . . . . . . . . . . . 3
2.2 What to do in an emergency . . . . . . . . . . . . . . . . . 3
2.3 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 Modifications in and around the boiler . . . . . . . . 4
3 Instructions on operation . . . . . . . . . . . . . . . . 5
3.1 Factory guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1.1 Two 2 year guarantee for ecoTEC plus
appliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1.2 One year guarantee for ecoTEC pro appliances . 5
3.1.3 Registering with us . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1.4 Immediate help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.3 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.4 Recycling and disposal . . . . . . . . . . . . . . . . . . . . . . 5
3.4.1 The appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.4.2 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1 Overview of controls on ecoTEC plus . . . . . . . . . . 6
4.2 Overview of controls on ecoTEC pro . . . . . . . . . . 7
4.3 Initial checks before turning on . . . . . . . . . . . . . . 8
4.3.1 Opening the service valves . . . . . . . . . . . . . . . . . . 8
4.3.2 Checking the system pressure . . . . . . . . . . . . . . . . 8
4.4 Turning the boiler ON . . . . . . . . . . . . . . . . . . . . . . . 9
4.5 Domestic hot water with ecoTEC combination
boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.5.1 Setting the water temperature . . . . . . . . . . . . . . . 9
4.5.2 Switching the warmstart function on and off . . . 10
4.5.3 Drawing hot water (ecoTEC combination
boilers only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.6 Heating operation . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.6.1 Setting the maximum radiator temperature
control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.6.2 Switching off heating (summer operation) . . . . . 11
4.6.3 Setting a room- or outside temperature
controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.7 Status displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.8.1 Problems due to low system water pressure . . . 13
4.8.2 Ignition problems . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.8.3 Flue problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.9 Turning off the boiler . . . . . . . . . . . . . . . . . . . . . . . 13
4.10 Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.11 Maintenance and customer service . . . . . . . . . . . 14
Instructions for use . . . . . . . . . . . . . . . . . . . . . . . . 17
Contents
Appliance characteristics
Appliance characteristics
The Vaillant ecoTEC plus and ecoTEC pro models are
compact, wall-mounted condensing appliances.
ecoTEC plus and pro combination boilers provides both
central heating and domestic hot water, with the dome-
stic hot water supplied directly from the boiler. The boi-
ler will operate automatically to provide domestic hot
water whenever a hot water tap is opened, and auto-
matically adjusts to meet the demand for both central
heating and domestic hot water in the most economical
way.
ecoTEC system boilers provides central heating and
domestic hot water where a separate indirect hot water
cylinder is also incorporated to the system.
2 …


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