Manual Vaillant ecoTEC plus 937 (page 2 of 16) (English)

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Operating instructions ecoTEC plus 937 / 0020031573_022

Appliance characteristics ........................................... 2

Recommended accessories......................................... 2

1 Notes on the documentation ........................... 3

1.1 Storage of the documents ...................................... 3

1.2 Symbols used ............................................................. 3

1.3 Validity of the instruction manual ........................ 3

1.4 CE label ........................................................................ 3

1.5 Identification plate .................................................... 3

2 Safety ................................................................. 3

2.1 Setup and adjustment .............................................. 3

2.2 Action in case of emergency ................................. 3

2.3 Safety instructions ................................................... 4

2.4 Modifications to the boiler and its environment 4

2.5 Setup and adjustment .............................................. 4

3 Instructions on operation ................................ 5

3.1 Factory guarantee .................................................... 5

3.1.1 Two years guarantee for ecoTEC plus units ...... 5

3.1.2 Registering with us ................................................... 5

3.1.3 Immediate help .......................................................... 5

3.2 Intended use ............................................................... 5

3.3 Care .............................................................................. 5

3.4 Recycling and disposal ............................................ 5

3.4.1 Equipment ................................................................... 5

3.4.2 Packaging .................................................................... 5

4 Operation ........................................................... 6

4.1 Overview of the operating elements ................... 6

4.2 Measures prior to commissioning ......................... 7

4.2.1 Opening the isolating valves .................................. 7

4.2.2 Checking system pressure ...................................... 7

4.3 Start-up ........................................................................ 7

4.4 Domestic hot water operation ............................... 8

4.4.1 Setting the hot water temperature ...................... 8

4.4.2 Switching on/off the warmstart function ........... 8

4.4.3 Storage tank charging mode ................................. 9

4.4.4 Drawing off the hot water ...................................... 9

4.5 Heating operation ..................................................... 10

4.5.1 Setting the flow temperature ................................ 10

4.5.2 Switching heating mode off (summer mode) .... 10

4.5.3 Setting a room thermostat or weather

compensator .............................................................. 10

4.6 Status displays (for maintenance and

servicing by the engineer) ...................................... 10

4.7 Troubleshooting ........................................................ 11

4.7.1 Faults caused by water pressure too low ........... 11

4.7.2 Faults in ignition ........................................................ 11

4.7.3 Faults in the air/flue gas routing .......................... 11

4.8 De-commissioning ..................................................... 12

4.9 Frost protection......................................................... 12

4.10 Maintenance and customer service ..................... 12

Appliance characteristics

The Vaillant ecoTEC plus 937 is a compact gas wall-

mounted boiler with condensing technology and 15 litre

laminar stainless steel storage tank.

The Vaillant ecoTEC plus 937 provides central heating

and hot water, whereby the hot water is supplied direct

from the boiler. Hot water provision takes place auto-

matically when the hot water tap is opened. This invol-

ves automatic control of the boiler so that the demand

for heating and hot water is automatically covered in the

most economic way.

Recommended accessories

Vaillant have a range of control accessories that can eit-

her push-fit into the boiler fascia or be wall mounted.

Controller Item no.

VRC 400 (1-circuit controller, weather-

controlled)

00 2001 0843

VRT 360 (room temperature controller) 00 2001 0842

VRT 360f (room temperature controller) 00 2001 8258

VRT 230 (room temperature controller) 00 2001 0841

timeSWITCH 140 (timer) 306 760

timeSWITCH 130 (timer) 306 759

VRT 30 (room thermostat) 300 637

VRT 30 (room thermostat) 0020018265

Telecommunication Item no.

vrnetDIALOG 830 (Int) 00 2000 3988

vrnetDIALOG 860/2 (Int) 00 2000 3984

Accessories Item no.

VR 65 control centre for UK cylinder

installation (eBUS)

307 215

vrDIALOG 810/2 00 2002 3370

Table Controller options

Your expert technician will help you with selection of the

suitable controller.

Contents

Appliance characteristics

Recommended accessories

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Vaillant ecoTEC plus 937 Manual

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