Vaillant ecoTEC plus VU, ecoTEC plus VUW Operating Instructions Manual

For the operator

Operating instructions

ecoTEC plus

VU, VUW

GB, IE

Operating instructions

Publisher/manufacturer
Vaillant GmbH

Berghauser Str. 40 D-42859 Remscheid
Tel. [phone]‑0 Fax [phone]‑28 10
[e-mail] www.vaillant.de

Contents

2 Operating instructions ecoTEC plus 0020220342_01

Contents

1 Safety .................................................................... 3

1.1 Action-related warnings ......................................... 3

1.2 Intended use.......................................................... 3

1.3 General safety information .................................... 3

2 Notes on the documentation .............................. 5

2.1 Observing other applicable documents ................. 5

2.2 Storing documents................................................. 5

2.3 Applicability of the instructions .............................. 5

3 Product description............................................. 5

3.1 Product design....................................................... 5

3.2 Control elements.................................................... 5

3.3 Displayed symbols................................................. 6

3.4 Information on the identification plate.................... 6

3.5 Serial number ........................................................ 7

3.6 CE label ................................................................. 7

3.7 Energy Saving Trust Endorsed Products .............. 7

4 Operation.............................................................. 7

4.1 Operating concept ................................................. 7

4.2 Basic display.......................................................... 7

4.3 Menu display.......................................................... 7

4.4 Operating levels..................................................... 8

4.5 Cabinet-type casing............................................... 8

4.6 Opening the isolator devices ................................. 8

4.7 Starting up the product .......................................... 8

4.8 Switching on the product ....................................... 8

4.9 Setting the heating flow temperature..................... 8

4.10 Setting the hot water temperature ......................... 8

4.11 Switching Comfort mode on and off ...................... 8

4.12 Activating the shift-load cylinder ............................ 9

4.13 Switching off the product's functions ..................... 9

4.14 Guaranteeing the correct filling pressure of the

heating system....................................................... 9

4.15 Protecting the heating installation against

frost...................................................................... 10

5 Troubleshooting ................................................ 10

5.1 Detecting and rectifying faults ............................. 10

5.2 Calling up (Live monitor) status codes ................ 10

6 Care and maintenance ...................................... 10

6.1 Maintenance ........................................................ 10

6.2 Caring for the product .......................................... 10

6.3 Reading maintenance messages ........................ 10

6.4 Checking the condensate drain pipework and

tundish ................................................................. 11

7 Decommissioning.............................................. 11

7.1 Temporarily decommissioning the product.......... 11

7.2 Permanently decommissioning the product......... 11

8 Recycling and disposal..................................... 11

9 Guarantee and customer service..................... 11

9.1 Guarantee............................................................ 11

9.2 Customer service................................................. 11

Appendix ............................................................................ 12

A Operator level – overview ................................. 12

B Status codes – Overview .................................. 12

C Troubleshooting ................................................ 13

Safety 1

0020220342_01 ecoTEC plus Operating instructions 3

1 Safety

1.1 Action-related warnings

Classification of action-related warnings

The action-related warnings are classified in
accordance with the severity of the possible
danger using the following warning signs and
signal words:

Warning symbols and signal words

Danger!

Imminent danger to life or risk of
severe personal injury

Danger!

Risk of death from electric shock

Warning.

Risk of minor personal injury

Caution.

Risk of material or environmental
damage

1.2 Intended use

There is a risk of injury or death to the user or
others, or of damage to the product and other
property in the event of improper use or use
for which it is not intended.

The product is intended as a heat generator
for closed heating installations and for hot
water generation.

Intended use includes the following:

– observance of the operating instructions

included for the product and any other
system components

– compliance with all inspection and main-

tenance conditions listed in the instruc­tions.

This product can be used by children aged
from 8 years and above and persons with
reduced physical, sensory or mental capabil­ities or lack of experience and knowledge if
they have been given supervision or instruc­tion concerning use of the product in a safe
way and understand the hazards involved.
Children must not play with the product.
Cleaning and user maintenance work must
not be carried out by children unless they are
supervised.

Any other use that is not specified in these
instructions, or use beyond that specified in

this document shall be considered improper
use. Any direct commercial or industrial use
is also deemed to be improper.

Caution.

Improper use of any kind is prohibited.

1.3 General safety information

1.3.1 Installation by competent persons
only

The installation, inspection, maintenance
and repair of the product, as well as the gas
ratio settings, must only be carried out by a
competent person.

1.3.2 Danger caused by improper
operation

Improper operation may present a danger to
you and others, and cause material damage.

▶ Carefully read the enclosed instructions

and all other applicable documents, par­ticularly the "Safety" section and the warn­ings.

1.3.3 Risk of death from escaping gas

What to do if you smell gas in the building:

▶ Avoid rooms that smell of gas.
▶ If possible, open doors and windows fully

and ensure adequate ventilation.

▶ Do not use naked flames (e.g. lighters,

matches).

▶ Do not smoke.
▶ Do not use any electrical switches, mains

plugs, doorbells, telephones or other com­munication systems in the building.

▶ If it is safe to do so, close the emergency

control valve or the main isolator.

▶ If possible, close the gas isolator cock on

the product.

▶ Warn other occupants in the building by

yelling or banging on doors or walls.

▶ Leave the building immediately and ensure

that others do not enter the building.

▶ Notify the gas supply company or National

Grid Transco [phone] by tele­phone from outside of the building.

1 Safety

4 Operating instructions ecoTEC plus 0020220342_01

1.3.4 Risk of death due to a blocked or
leaking flue gas pipe

What to do if you smell flue gas in the prop­erty:

▶ Open all accessible doors and windows

fully to provide ventilation.

▶ Switch off the product.
▶ Inform a competent person.

1.3.5 Risk of death from escaping flue
gas

If you operate the product with an empty con­densate siphon, flue gas may escape into the
room air.

▶ In order to operate the product, ensure that

the condensate siphon is always full.

1.3.6 Risk of death due to explosive and
flammable materials

▶ Do not use or store explosive or flammable

materials (e.g. petrol, paper, paint) in the
installation room of the product.

1.3.7 Risk of death due to changes to the
product or the product environment

▶ Never remove, bridge or block the safety

devices.

▶ Do not alter the safety devices in any way.
▶ Do not damage or remove any seals on

components.

▶ Do not make any changes:

– The product itself
– to the gas, air, water and electricity sup-

plies

– to the entire flue gas installation
– to the entire condensate drain system
– to the expansion relief valve
– to the drain lines
– to constructional conditions that may

affect the operational reliability of the
product

1.3.8 Risk of poisoning caused by
insufficient supply of combustion
air

Conditions: Open-flued operation

▶ Ensure that there is a sufficient supply of

combustion air.

1.3.9 Risk of corrosion damage due to
unsuitable combustion and room air

Sprays, solvents, chlorinated cleaning
agents, paint, adhesives, ammonia com­pounds, dust or similar substances may lead
to corrosion on the product and in the air/flue
pipe.

▶ Ensure that the supply of combustion air is

always free of fluorine, chlorine, sulphur,
dust, etc.

▶ Ensure that no chemical substances are

stored at the installation site.

1.3.10 Risk of material damage caused by

frost

▶ Ensure that the heating installation always

remains in operation during freezing con­ditions and that all rooms are sufficiently
heated.

▶ If you cannot ensure the operation, have a

competent person drain the heating install­ation.

1.3.11 Risk of injury and material damage

due to maintenance and repairs
carried out incorrectly or not
carried out at all

▶ Never attempt to carry out maintenance

work or repairs on your product yourself.

▶ Faults and damage should be immediately

rectified by a competent person.

▶ Adhere to the maintenance intervals spe-

cified.

Notes on the documentation 2

0020220342_01 ecoTEC plus Operating instructions 5

2 Notes on the documentation

2.1 Observing other applicable documents

▶ You must observe all operating instructions enclosed with

the system components.

2.2 Storing documents

▶ Keep this manual and all other applicable documents

safe for future use.

2.3 Applicability of the instructions

These instructions apply only to:

Product article number

Article num­ber

Gas Council
Number

612 (VU GB 126/5‑5 A)
ecoTEC plus

0010018531 41-044-78

615 (VU GB 156/5‑5 A)
ecoTEC plus

0010018532 41-044-79

618 (VU GB 186/5‑5 A)
ecoTEC plus

0010018533 41-044-80

618 (VU GB 186/5‑5 A
LPG) ecoTEC plus

0010018534 41-044-81

624 (VU GB 246/5‑5 A)
ecoTEC plus

0010018535 41-044-82

630 (VU GB 306/5‑5 A)
ecoTEC plus

0010018536 41-044-83

630 (VU GB 306/5‑5 A
LPG) ecoTEC plus

0010018537 41-044-84

637 (VU GB 376/5‑5 A)
ecoTEC plus

0010018538 41-044-85

825 (VUW GB 256/5‑5)
ecoTEC plus

0010018353 47-044-57

832 (VUW GB 326/5‑5)
ecoTEC plus

0010018354 47-044-58

832 (VUW GB 326/5‑5
LPG) ecoTEC plus

0010018355 47-044-59

835 (VUW GB 356/5‑5)
ecoTEC plus

0010016540 47-044-53

838 (VUW GB 386/5‑5)
ecoTEC plus

0010018356 47-044-60

3 Product description

3.1 Product design

1

2

3

1 Control elements

2 Plate with serial number

on the rear

3 Front flap

3.2 Control elements

1234

5

1 On/off button

2 Built-in controller (ac-

cessory)

3 Fault clearance button

4 Operating buttons

5 Display