Vaillant ECOTEC PLUS VU 80, ECOTEC PLUS VU 100, ECOTEC PLUS VU 120 Installation And Maintenance Instructions Manual
Installation and maintenance instructions
For the competent person
Installation and maintenance instructions
ecoTEC plus
VU 80, 100, 120kW
GB, IE
Table of contents
Table of contents
1 Notes on the documentation .....................................3
1.1 Storing documents ..........................................................3
1.2 Applicability of the instructions ...................................3
1.3 Identification plate ...........................................................3
1.4 CE label ...............................................................................3
1.5 Type overview ...................................................................4
2 Safety .................................................................................5
2.1 Safety and warning information ..................................5
2.2 Intended use ......................................................................5
2.3 Basic safety information ................................................ 6
2.4 General requirements .....................................................7
3 Unit and functional description ................................11
4 Installation ......................................................................12
4.1 Scope of delivery ............................................................12
4.2 Transporting the unit .....................................................12
4.3 Dimension drawing and connection dimensions .....15
4.4 Requirements for the installation site .......................15
4.5 Wall-mounting the boiler ...............................................16
4.6 Removing/fitting the front casing ..............................16
5 Gas installation ..............................................................17
5.1 Preparing for installation ..............................................17
5.2 Connecting the gas line .................................................17
6 Hydraulic installation ................................................. 18
6.1 Preparing for installation ............................................. 18
6.2 Connecting the heating flow and heating return....19
6.3 Connecting the condensate drain pipework ........... 20
6.4 Connecting the discharge pipe to the expansion
relief valve on the heating installation ......................21
7 Flue gas installation ...................................................22
7.1 Preparing for installation .............................................22
7.2 Installing the flue pipe ..................................................22
7.3 Flue gas guiding opening .............................................22
8 Electrical installation .................................................24
8.1 Preparing for installation .............................................24
8.2 Opening/closing the electronics box .........................24
8.3 Establishing the mains connection and
connecting the pump group ........................................24
8.4 Connecting the controller ............................................26
8.5 Connecting additional units ........................................27
8.6 Connection wiring diagram .........................................28
10 Operation ........................................................................33
10.1 Calling up the installer level ........................................33
10.2 Overview of the menu structure ............................... 34
11 Start-up ...........................................................................36
11.1 Switching on the boiler .................................................36
11.2 Installation assistant .....................................................36
11.3 Appliance configuration and diagnostics menu .....37
11.4 Using test programmes ................................................37
11.5 Checking the function of the boiler ......................... 38
12 Adapting the unit to the heating installation ....39
12.1 Overview of the parameters in the diagnostics
menu .................................................................................39
12.2 Handing the boiler over to the operator ................. 43
13 Inspection and maintenance ................................... 44
13.1 Inspection and maintenance intervals ..................... 44
13.2 Inspection and maintenance work ............................ 48
13.3 Using the function menu ............................................49
13.4 Removing/fitting the upper casing ........................... 50
13.5 Carrying out maintenance work ................................ 50
14 Troubleshooting ........................................................... 55
14.1 Contacting Vaillant customer service ...................... 55
14.2 Performing diagnostics ............................................... 55
14.3 Using the function menu ..............................................61
14.4 Running check programmes ........................................61
14.5 Resetting parameters to factory settings .................61
15 Replacing components ...............................................62
15.1 Preparing for and completing replacement work ..62
15.2 Removing/fitting the side section (ifrequired) .....62
15.3 Replacing the gas valve ................................................63
15.4 Replacing the burner ....................................................63
15.5 Replacing insulating mats ........................................... 64
15.6 Replacing the fan .......................................................... 64
15.7 Replacing the heat exchanger ................................... 64
15.8 Replacing the PCB and/or the display ..................... 65
15.9 Ending repairs ................................................................ 65
16 Decommissioning ........................................................ 66
16.1 Temporarily shutting down the boiler ..................... 66
16.2 Permanently decommissioning the boiler .............. 66
16.3 Disposing of the boiler ................................................66
17 Vaillant Commercial Service ................................... 66
9 Establishing operational readiness ........................29
9.1 Reading the temperature or pressure display ........29
9.2 Preparing the heating water .......................................29
9.3 Filling and purging the heating installation ............29
9.4 Preventing low water pressure .................................. 30
9.5 Filling the condensate siphon ......................................31
9.6 Checking the gas ratio setting .....................................31
2 ecoTEC plus installation and maintenance instructions 0020134823_01
18 Technical data
19 Glo
20 Appendix ........................................................................ 69
Index ...........................................................................................72
ssary ......................................................................... 68
...............................................................67
Notes on the documentation
1
1 Notes on the documentation
The following information is intended to help you throughout the entire documentation. Other documents apply in
addition to these Installation instructions. We accept no liability for any damage caused by failure to observe these
instructions.
Other applicable documents
> During installation, you must observe all the installation
instructions for the assemblies and components of the
system.
These installation instructions are enclosed with the various
system parts and supplementary components.
> Furthermore, observe all operating instructions enclosed
with components of the system.
1.1 Storing documents
> Pass these installation instructions and all other applica-
ble documents and, if necessary, any required tools to
the system operator.
The system operator should retain these instructions and
tools so that they are available when required.
1.2 Applicability of the instructions
These instructions apply for the following products only:
Unit Type designation
ecoTEC plus 806 (VU GB 806/5-5) 0010010767 41-044-68
ecoTEC plus 1006 (VU GB 1006/5-5) 0010010780 41-044-69
Article
number
Gas
Council
Number
1.4 CE label
CE labelling shows that, based on the type
overview, the units comply with the basic
requirements of the following directives:
– Directive 2009/142/EC of the Council with amendments
"Directive for Harmonisation of Legal Regulations of the
Member States for Gas Consumption Appliances"
(GasAppliances Directive)
– Directive 92/42/EC of the Council with amendments
"Directive Concerning the Efficiency of New Hot Water
Heating Boilers Fired by Liquid or Gaseous Fuels"
( Efficiency directive)
– Directive 2006/95/EC of the Council with amendments
"Directive Concerning Electrical Equipment for Use
Within Specific Voltage Limits" (Low voltage directive)
– Directive 2004/108/EC of the Council with amendments
"Directive Concerning Electromagnetic Compatibility"
The boilers comply with the type sample described in the
EC Type testing certificate
PIN no. CE-0085CM0415
The units comply with the following standards:
– EN 12828
– EN 15417
– EN 15420
– EN 50165
– EN 55014
– EN 60335-1
– EN 6100-3-2
– EN 6100-3-3
– prEN 15502-1
– prEN 15502-2
ecoTEC plus 1206 (VU GB 1206/5-5) 0010010791 41-044-70
1.1 Type overview
> The article number of the unit can be found on the iden-
tification plate.
1.3 Identification plate
The identification plate of the Vaillant ecoTEC plus is
attached to the bottom of the boiler at the factory.
The article number of the gas-fired wall-hung boiler can be
found in the serial number. The seventh to sixteenth numbers constitute the article number.
The serial number is also located on a plate, which is placed
in a plastic fish plate behind the front flap on the underside
of the boiler. The serial number can also be shown in the
display of the boiler (¬Operating instructions).
ecoTEC plus installation and maintenance instructions 0020134823_01 3
Notes on the documentation
1
1.5 Type overview
Unit type
ecoTEC plus
806 (VU GB 806/5-5)
1006 (VU GB 1006/5-5)
1206 (VU GB 1206/5-5)
1.2 Type overview
Designated country
(designation in accordance with ISO 3166)
GB (Great Britain)
IE (Ireland)
GB (Great Britain)
IE (Ireland)
GB (Great Britain)
IE (Ireland)
Approval
category
II
2H3P
II
2H3P
II
2H3P
Gas group
Natural gas H - G20 - 2kPa (20mbar)
Propane - G31 - 3.7kPa (37mbar)
Propane - G31 - 5kPa (50mbar)
Natural gas H - G20 - 2kPa (20mbar)
Propane - G31 - 3.7kPa (37mbar)
Propane - G31 - 5kPa (50mbar)
Natural gas H - G20 - 2kPa (20mbar)
Propane - G31 - 3.7kPa (37mbar)
Propane - G31 - 5kPa (50mbar)
Nominal heat output
range [kW]
16 - 80
20 - 100
24 - 120
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Safety
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2 Safety
2.1 Safety and warning information
> When installing the ecoTEC plus, you must observe all
the general safety information and the warning notes
that appear before all of the actions.
2.1.1 Classification of warnings
The warnings are classified in accordance with the severity
of the possible danger using the following warning signs
and signal words:
Warning
symbol
a
Signal
word
Danger!
Danger!
Explanation
Imminent danger to life or
risk of severe personal
injury
Risk of death from electric
shock
e
Warning. Risk of minor personal injury
a
Risk of material or environ-
Caution.
mental damage
b
2.2 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 hot
water/central heating installations and for hot water generation. The products referred to in this manual must only be
installed and operated in conjunction with the accessories
listed in the associated flue pipe installation manual.
Intended use includes the following:
– observance of accompanying operating, installation and
servicing instructions for the Vaillant product, as well as
all other components of the system
– installing and fitting the product in accordance with the
product and system approval
– compliance with all inspection and maintenance condi-
tions listed in the instructions.
The use of the product in vehicles, such as mobile homes
and caravans, is not classed as intended use. Units that are
not classed as vehicles are those that are installed in a
fixed and permanent location (known as "fixed installation").
Installing and using the product in locations where it will be
subject to possible moisture or spray water is considered to
be improper use.
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.
The manufacturer/supplier is not liable for any claims or
damage resulting from improper use. The user alone bears
the risk.
Caution.
Improper use of any kind is prohibited.
2.1 Classification of warnings
2.1.2 Structure of warnings
Warning signs are identified by an upper and lower separating line. and are laid out according to the following basic
principle:
Signal word!
Type and source of danger!
a
ecoTEC plus installation and maintenance instructions 0020134823_01 5
Explanation of the type and source of
danger
> Measures for averting the danger
a
2
Safety
a
2.3 Basic safety information
> Observe the following safety information at all times.
European installation directive
Installation and maintenance of the boiler must only be performed by a competent person with valid accreditation from
the Health and Safety Executive in accordance with the
"Gas Safety (Installation and Use) Regulations 1998" (hereinafter abbreviated to "competent person" or "heating specialist company"). The existing regulations, rules and guidelines must be observed when doing so. The competent person is also responsible for inspection, maintenance and
repairs to the boiler, and alterations to the gas volume setting.
IE only: The installation must comply with the current Version of I.S.813 ‘Domestic Gas Installations’ and current
Building Regulations.
The current ETCI Regulations for installing electrical systems must also be observed.
Risk of poisoning and burns caused by escaping
hot flue gases!
Hot flue gas can escape and cause poisoning and burns if
the boiler is operated with an incompletely installed or flue
pipe or if the boiler is operated with internal leaks with the
front casing open.
> Operate the boiler for start-up and in continuous mode
only when the front casing is fitted and closed and the
flue pipe is completely fitted.
> For test purposes only (such as gas flow pressure test-
ing), the boiler may be operated with the front casing
removed for short durations ONLY but must have a completely installed flue pipe.
What to do in an emergency if you smell gas
Installation errors, damage, tampering, unauthorised installation sites or similar can cause gas to escape and result in
a risk of poisoning and explosion. If there is a smell of gas
in the building, proceed as follows:
> 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, door-
bells, telephones or other communication systems in the
building.
> Close the gas meter isolator device or the main isolator.
> If possible, close the gas isolator cock in the gas supply.
> Warn other occupants in the building by yelling or bang-
ing on doors or walls.
> Leave the building.
> If you can actually hear gas leaking, leave the building
immediately and ensure that others do not enter the
building.
> Alert the fire brigade and police when you are outside
the building.
> Notify the gas supply company or National Grid Transco
0800 111999 by telephone from outside the building!
What to do if you smell flue gas
Installation errors, damage, tampering with the unit, unauthorised installation sites or similar can cause flue gas to
escape and result in a risk of poisoning. If there is a smell of
flue gas in the building, proceed as follows:
> If possible, open doors and windows fully and ensure
adequate ventilation.
> Switch the boiler off.
> Check the flue gas routes in the boiler and the flue gas
pipes.
> In particular, check that the flue gas opening is not
blocked. If required, seek expert assistance for this.
Installation in rooms with ventilation
For open-flued operation, the unit must not be placed in
rooms from which the air is extracted using fans (for example, ventilation systems, extractor hoods, tumble dryer ventilation). These systems create negative pressure in the
room. As a result of the negative pressure, flue gas from
the opening is drawn through the annular gap between the
flue gas pipe and the shaft into the installation room.
The unit may only be operated dependent on the room air,
if simultaneous operation of the unit and fan is not possible.
> To interlock the fan and unit, install the Vaillant acces-
sory multi-functional module 2 from 7.
> Please inform the system operator of the possible risk
from running exhaust fans.
Material damage caused by corrosion
To prevent corrosion on the boiler and also in the flue pipe,
note the following:
> Do not use sprays, solvents, chlorinated cleaning agents,
paint, adhesives or similar substances in the vicinity of
the boiler.
Under unfavourable circumstances, these substances may
cause corrosion.
Material damage due to improper use and/or
unsuitable tools
The use of unsuitable tools or improper use thereof may
cause damage, such as gas or water leaks.
> To tighten or loosen threaded connections, only use a
suitable open-ended spanner (combination wrench) – do
not use pipe wrenches, extensions, etc.
Changes to the surroundings of the boiler
Changes may not be made to the following equipment:
– the boiler
– the gas, air and water pipes and power lines
– the flue pipe
– the drain line and expansion relief valve for the heating
water
– constructional conditions that could affect the opera-
tional safety of the boiler
6 ecoTEC plus installation and maintenance instructions 0020134823_01
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Using the correct gas type
Using the wrong gas type may cause a fault shutdown on
the boiler. Furthermore, ignition and combustion noise may
occur in the boiler.
> Observe the gas setting values in accordance with
¬section1.5.
Risk of death due to lack of safety devices
A lack of safety devices (e.g. expansion relief valve, expansion vessel) can lead to potentially fatal scalding and other
injuries, e.g. due to explosions.
The schematic drawings included in this document do not
show all safety devices required for correct installation.
> Install the necessary safety devices in the system.
> Inform the operator about the function and position of
the safety devices.
> Observe the applicable national and international laws,
standards and guidelines.
2.4 General requirements
2.4.1 Related documents
To ensure the safe installation and continued satisfactory
operation of your appliance, all works shall be carried out
by a competent installer fully conversant with the equired
current and up to date, acts standards, laws and regulations
relevant for this range of equipment at the time of installation. In addition any special requirements of Local Authorities, gas undertakings or insurers must be complied with.
Installers shall carryout a full site risk assessment and put
into place all necessary steps and procedures to comply
with Health and Safety at Work Act and ensure safety of
themselves and others with regard to manual handling and
working at height requirements.
Attention shall be paid to (but not restricted to) the following:
– Gas Safety (Installation and Use) regulations.
– Non Domestic Heating, Cooling and Ventilation Compli-
ance Guide.
– All Building Regulations 2000 for England and Wales,(as
amended).
– (Includes Approved Codes of Practice and Approved Doc-
uments for building regulations e.g. L1, L2A, L2B, L8.)
– The Building Standards, Scotland, and any requirements
determined by the local authorities within.
– BS 7671 Requirements for electrical installations. IEE Wir-
ing Regulations
– The Electricity at Work Regulations.
– The Clean Air Act 1993, 1968 and the 3rd Edition of the
1956 Clean Air Act. (installations exceeding 150kW)
– The Water supply (water fittings) regulations 1999.
– BS 5854 Code of practice for flues and flue structures in
buildings.
– BS EN 12828 Design of water-based heating systems.
– BS 6644 Specification for the installation of gas fired
hot water boilers with rated inputs between 70 kW (net)
and 1.8 MW (net) (2nd and 3rd family gases).
– I.S. 820 Non Domestic gas Installations (Ireland)
– BS 6700 Specification for the design, installation, testing
and maintenance of services supplying water for domes-
tic use within buildings and their curtilages.
– BS 6880 Code of practice for low temperature heating
systems with outputs greater than 45 kW.
Part 1 Fundamental and design considerations.
Part 2 Selection of equipment.
Part 3 Installation, commissioning and maintenance.
– BS 6981 Installation of low pressure gas pipework of up
to 35mm in domestic premises.
– BS 4814 Specification for: Expansion vessels using an
internal diaphragm, for sealed hot water and heating sys-
tems.
– BS 7074 Application, selection and installation of expan-
sion vessels and ancillary equipment for sealed water
systems.
Part 1 Code of practice for domestic heating and hot water.
Part 2 Code of practice for low and medium temperature
hot water systems.
– BS 7593 Code of practice for treatment of water in
domestic hot water central heating systems
– BS EN 13831 Closed expansion vessels with built in dia-
phragm
– BS EN 14336 Heating systems in buildings. Installation
and commissioning of water based heating systems.
Institute of Gas Engineers Publications:
– IGE/UP/1 (Edition 2) Strength testing, tightness testing
and direct purging of industrial and commercial gas
installations.
– IGE/UP/1A (Edition 2) Strength testing, tightness testing
and direct purging of small, low pressure industrial and
commercial natural gas installations.
– IGE/UP/1B (Edition 2) Tightness testing and direct purg-
ing of small natural gas installations.
– IGE/UP/ 7 (Edition 2) Gas in timber and light steel
framed buildings.
IGE/UP/10 Installation of gas appliances in industrial and
–
commercial premises.
Part 1 Flued appliances.
ecoTEC plus installation and maintenance instructions 0020134823_01 7
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Safety
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2.4.2 Installation site
The installation site of the boiler should allow proper connection of the flue pipe to the boiler. In addition, there
should be adequate room for maintenance work and air circulation around the boiler.
The boiler must be set up in a separate installation room.
In case of installation of the boiler in an unusual location,
special procedures may be necessary and BS 5546 and
BS6798 give detailed instructions on this aspect. The boiler
must be installed on a flat, vertical wall, which must be sufficiently robust to take the weight of the boiler. The boiler
may be installed on a combustible wall, subject to the
requirements of the Local Authorities and Building Regulations.
If the boiler is to be installed in a timber frame
house, the installation must be performed in
i
b
> Observe the following when choosing the installation site
and operating the boiler:
> Operate the boiler independently of room air or in a sep-
arate installation room, otherwise this may cause corrosion in the boiler and in the flue gas installation, if
> Do not route the combustion air through an old oil fur-
nace hearth, as this can also cause corrosion.
> When installing the unit, please observe the local con-
densate regulations,
The condensate connection must not be modified or
blocked.
accordance with the Institute of Gas Engineers
Publication IG/UP/7 edition 2 "Guideline for gas
installations in wooden and light metal-clad residences".
Caution.
Risk of damage caused by aggressive
vapours and dust.
Aggressive vapours and dust in the installation room may cause corrosion damage to
the boiler and to the flue gas installation.
> Ensure that the boiler is room-sealed if
the air in the installation room contains
aggressive vapours or dust.
– Do not install the boiler in rooms prone to frost.
– Do not install the boiler in rooms in which the com-
bustion air contains chemical substances, e.g. fluoride,
chlorine, sulphur, dust, etc. (e.g. sprays, solvents,
cleaning agents, paint, adhesives).
– the combustion air supply contains the aforemen-
tioned substances,
– you install the boiler in hairdresser salons, painter's or
joiner's workshops, cleaning businesses or similar.
– avoid horizontal sections in the condensate and flue
gas route.
2.4.3 Gas supply
An existing gas meter should be checked to ensure that it is
capable of passing the rate of gas supply required.
The lines must be fitted in accordance with BS 6891. In IE in
accordance with the current issue of IS813. The lines
between the gas meter and boiler must be of an appropriate size.
Do not use any lines that are smaller than the connection
to the boiler (25mm). The complete system must be tested
for leaks and purged as described in BS 6891.
2.4.4 Electrical connection
Danger!
Risk of death from electric shock!
e
A common, single-phase 230V-, ~50Hz electricity supply
fused to a max. 3 A must be provided for the boiler and its
additional controllers in accordance with the latest edition
of the directive BS7671 (IEE Wiring Regulations) and any
other local regulations that may apply. In IE reference
should be made to the current edition of the ETCI rules. The
method of connection to the power mains must provide a
means of completely isolating the boiler and its ancillary
controllers from the power mains. It is preferable to isolate
the boiler using a two-pin switch with a 3-mm contact opening on both pins. The isolator should be attached and
marked accordingly so that it is easily accessible and adjacent to the boiler.
2.4.5 System of parts through which water flows
Lines which do not form part of the usable heating surface
should be insulated to prevent heat losses and possible
freezing up, especially where the lines run under roofs and
ventilated cellar spaces. The drain connections must be easily accessible, so that the entire system including the boiler
and hot water system can be drained. The drain connections should be at least 1/2" (BSP nominal size) and must be
in accordance with BS2879.
The water pipes must be thoroughly cleaned, especially
when connecting a new boiler to an existing system.
If the boiler is not earthed, it may be electrically live if a defect occurs.
> Earth the boiler and the metal pipes that
are connected to the boiler.
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Safety
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Caution.
Risk of material damage if the heating
b
Mixing additives with the heating water may result in material damage. However, no incompatibility with Vaillant boilers has been detected with proper use of the following
products over a long period.
> When using additives, follow the manufacturer's instruc-
tions without exception.
Vaillant accepts no liability for the compatibility of any additive or its effectiveness in the rest of the heating installation.
Additives for cleaning measures (subsequent
flushing required)
– Fernox F3
– Sentinel X 300
– Sentinel X 400
Additives intended to remain permanently in the
system
– Fernox F1
– Fernox F2
– Sentinel X 100
– Sentinel X 200
Additives for frost protection intended to remain
permanently in the system
– Fernox Antifreeze Alphi 11
– Sentinel X 500
> Inform the operator about the measures required if you
have used these additives.
> Inform the operator about the measures required for
frost protection.
water is treated with unsuitable frost or
corrosion protection agents!
Frost and corrosion protection agents may
cause changes in the seals, noises during
heating and may lead to further damage.
> Do not use any unsuitable frost or corro-
sion protection agents.
Permissible salt content
Heating water
characteristics
Electrical conductivity at
25 °C
Appearance
pH value at 25 °C 8.2 - 10.0
Oxygen mg/l
1) For aluminium and aluminium alloys, the pH value range is
restricted from 6.5 to 8.5.
2.2 Guideline values for heating water: Salt content
Permissible water hardness
Caution.
Heating water that is extremely calcifer-
b
ous or corrosive or contaminated by
chemicals may cause damage to the
boiler.
Unsuitable heating water damages the
seals and diaphragms, blocks components
in the boiler and heating installation
through which the water flows, and causes
noise.
The heating water must fulfil the limit values based on the system volume in accordance with fig.2.1 and, if required, must be
treated.
In addition, the national regulations with
regard to water treatment shall apply.
To treat the water, we recommend treatment plants that work according to the
reverse osmosis process.
> Condition the water for the initial filling
as well as the water for any subsequent
fillings.
Unit Low-salt Saline
1)
100 - 1500
8.2 - 10.0
mS/cm < 100
Free of sedimentary
materials
< 0.1 < 0.02
1)
ecoTEC plus installation and maintenance instructions 0020134823_01 9
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Safety
3,6
3,3
3
2,7
2,4
]
3
2,1
1,8
1,5
y [mol/m
1,2
0,9
0,6
0,3
0,0
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
80 kW
100/120 kW
80 kW: A
B
a
A
100/120 kW: B
x [l]
2.1 Water preparation depending on water hardness and system
volume
Key:
x System volume [l]
y Water hardness [mol/m3]
(1 mol/m3 corresponds to 100 mg/l CaCO3)
A Water treatment required
B Water treatment not required
2.4.6 Expansion relief valve
The boiler is supplied with a 6bar presure relief valve,
which must be fitted to the boiler and drained to a safe but
visible location. The safety discharge pipe must be a minimum of 18mm diameter and must be solely used for this
purpose.
Ensure that all components that are fitted in the heating
installation are suitable for a max. operating pressure of
6bar.
2.4.7 Purging
The boiler is equipped with an automatic air vent. Other
measures need to be taken to allow the heating system to
be purged during filling and during commissioning either
manually or using an automatic air vent.
Risk of damage due to frost
Insufficient frost protection measures may cause frost damage to the heating installation
> Explain to the operator how to protect the heating instal-
lation against frost.
10 ecoTEC plus installation and maintenance instructions 0020134823_01
3 Unit and functional description
Unit and functional description
3
Construction and function
15
14
13
12
11
10
9
8
15
14
1
2
13
12
11
3
10
4
5
6
7
9
8
3.2 Functional elements (VUGB1006/5-5 and
VUGB1206/5-5)
1
2
3
4
5
6
7
3.1 Functional elements (VUGB806/5-5)
Key
1 Connection for the flue pipe
2 Fan
3 Gas valve
4 Connection for air intake pipe
5 Flue gas pressure cartridge
6 Return sensor
7 Water pressure sensor
8 Electronics box
9 Stainless steel heat exchanger
10 Pressure gauge
11 Flow sensor
12 Safety cut-out
13 Ignition electrode
14 Automatic air vent
15 Monitoring electrode
Key
1 Connection for the flue pipe
2 Fan
3 Gas valve
4 Supply air collector
5 Flue gas pressure cartridge
6 Return sensor
7 Water pressure sensor
8 Electronics box
9 Stainless steel heat exchanger
10 Feed sensor
11 Safety cut-out
12 Ignition electrode
13 Automatic air vent
14 Monitoring electrode
ecoTEC plus installation and maintenance instructions 0020134823_01 11
Installation
4
4 Installation
4.1 Scope of delivery
The Vaillant ecoTEC plus is delivered pre-assembled in a
packaging unit.
4.1.1 Unpacking the boiler
> Open the box by pulling on the tear-off strings.
> Remove the boiler from its box.
> Remove the protective film from all parts of the boiler.
> Place the boiler so that it is vertical on the foot pad.
4.1.2 Checking the scope of delivery
> Check that the scope of delivery is complete and intact
(¬ table 4.1).
Number Description
1 Hanging bracket
1 Unit
Enclosed documentation
1
- Installation and maintenance instructions
- Operating instructions
- Flue pipe installation manual
- Installation template
- Guarantee card
- Various stickers
1 Condensate siphon
Bag containing small parts (assembly kit)
1
- 1 x expansion relief valve, 6bar
- 2 x service valves
- 6 x wood screws
- 6 x rawl plug, 10 x 60 mm
- 6 x washers
4.1 Scope of delivery
4.1.3 Disposing of the packaging
> Dispose of the cardboard packaging used on the ecoTEC
plus at a recovered paper collection point.
> Dispose of the plastic film and plastic filling at an appro-
priate plastic recycling site.
> Observe valid national regulations.
4.2 Transporting the unit
Important:
In regard to the regulations of 1992 concerning the manual
handling of loads, the unit exceeds the weight which can be
lifted by a single person.
General handling recommendations
> Clear your path before lifting the unit.
> Use safe lifting techniques – keep your back straight –
and bend your legs at the knee.
> Hold the load as close as possible to your body. Do not
twist your body – instead, reposition your feet.
> If the unit is being lifted by 2 persons, ensure your move-
ments are coordinated during lifting.
> Avoid bending your upper body - do not lean forwards or
to the side.
> Wear appropriate cut resistant and non-slip gloves to
protect yourself against sharp edges and maintain a safe
and secure grip.
> If required, get somebody to assist you in this.
Unloading the box from the delivery van
It is recommended that two people lift the unit together.
> Lift the box using the straps provided.
> Use safe lifting techniques – keep your back straight –
and bend your legs at the knee.
> Hold the load as close as possible to your body.
> If the unit is being lifted by 2 persons, ensure your move-
ments are coordinated during lifting.
> If required, get somebody to assist you in this.
Transporting the box from the delivery point to the
installation site – ground floor
It is recommended that two people lift the unit together.
> Use safe lifting techniques – keep your back straight –
and bend your legs at the knee.
> Hold the load as close as possible to your body.
> If the unit is being lifted by 2 persons, ensure your move-
ments are coordinated during lifting.
> Clear your path before lifting the unit.
> Use safe lifting techniques – keep your back straight –
and bend your legs at the knee.
> Do not twist your body – instead, reposition your feet.
> Avoid tripping hazards, slippery or wet surfaces as well
as steps and stairs.
> If required, get somebody to assist you in this.
12 ecoTEC plus installation and maintenance instructions 0020134823_01
Installation
4
Transporting the box from the delivery point to the
installation site – first or higher floor, cellar
It is recommended that two people lift the unit together.
> Use safe lifting techniques – keep your back straight –
and bend your legs at the knee.
> Hold the load as close as possible to your body.
> If the unit is being lifted by 2 persons, ensure your move-
ments are coordinated during lifting.
> Avoid bending your upper body - do not lean forwards or
to the side.
> Clear your path before lifting the unit.
> Use safe lifting techniques – keep your back straight –
and bend your legs at the knee.
> Do not twist your body – instead, reposition your feet.
> Avoid tripping hazards, slippery or wet surfaces as well
as steps and stairs.
> If required, get somebody to assist you in this.
Transporting the box from the delivery point to the
installation site – roof
> The unit must be lifted by two persons.
> Coordinate your movements.
> Avoid bending your upper body - do not lean forwards or
to the side.
> Clear your path before lifting the unit.
> Avoid tripping hazards, slippery or wet surfaces as well
as steps and stairs.
> If the unit is being transported to an attic storey, one
person must guide the unit from above, while the other
supports the unit from below.
> Use safe lifting techniques – keep your back straight –
and bend your legs at the knee.
> Hold the load as close as possible to your body.
> If required, get somebody to assist you in this.
> The attic storey must be safely accessible and must have
a solid floor and suitable lighting.
> If the attic storey is accessed via a hatch, the hatch must
be secured against falling using a suitable guard rail.
> Before setting up the unit, it is recommended that you
perform a risk assessment of the attic storey, to clarify
access, floor rigidity, lighting and other factors, and any
measures to be undertaken in advance.
Unpacking the unit from the box
> It is recommended that two persons lift the unit out of
the box.
> Always keep the working area free from obstacles.
> Cut through the two straps.
> Open the box flaps.
> Remove the polystyrene parts from the box
> Separate the box in the centre at the pull-out strap.
> Lift the upper part of the box away.
> Lift the unit out of the box.
> Use safe lifting techniques – keep your back straight –
and bend your legs at the knee.
> Hold the load as close as possible to your body.
> If required, get somebody to assist you in this.
> Dispose of the packaging responsibly.
> Wear appropriate cut-resistant and non-slip gloves to
protect yourself against sharp edges and maintain a safe
and secure grip while handling the unpackaged unit.
Positioning the unit for final installation – no
obstacles
> If the unit weighs more than 25 kg, it should always be
transported by two persons, where possible.
> Fix the unit bracket securely to the wall before lifting the
unit and placing it in position.
> Ensure that you hold on to the front and side of the unit
securely, lift it, hold it in a balanced position and then lift
it further upwards and position it on the bracket.
> Use safe lifting techniques – keep your back straight –
and bend your legs at the knee –if you are lifting some-
thing from the floor.
> Do not twist your body – instead, reposition your feet.
> During the entire lifting process, hold the boiler as close
as possible to your body to minimise the strain on your
back.
> Ensure your movements are coordinated so that the
weight of the unit is evenly distributed.
> If required, get somebody to assist you in this.
> Wear appropriate cut-resistant and non-slip gloves to
protect yourself against sharp edges and maintain a safe
and secure grip while handling the unit.
Positioning the unit for final installation – above a
work surface, possible obstacles, etc.
If the unit weighs more than 25 kg, it should always be
transported by two persons, where possible.
> Fix the unit bracket securely to the wall before lifting the
unit and placing it in position.
> If required, provide the work surface with sufficient pro-
tection against damage.
> Ensure that you hold the unit securely at the front and
side and lift it - if available - onto the work surface.
> Hold the unit in a balanced position and then lift it fur-
ther upwards and position it on the bracket.
> If the unit is being positioned on the bracket by two per-
sons, ensure that you have a firm grip on the front and
side/bottom of the boiler.
> Ensure your movements are coordinated if the unit is
being lifted by 2 persons, so that its weight is evenly dis-
tributed.
Use safe lifting techniques – keep your back straight – and
bend your legs at the knee –if you are lifting something
from the floor.
> Do not twist your body – instead, reposition your feet.
> During the entire lifting process, hold the boiler as close
as possible to your body to minimise the strain on your
back.
> Avoid bending your upper body - do not lean forwards or
to the side.
> If required, get somebody to assist you in this.
> Wear appropriate cut-resistant and non-slip gloves to
protect yourself against sharp edges and maintain a safe
and secure grip while handling the unit.
ecoTEC plus installation and maintenance instructions 0020134823_01 13
Installation
4
Positioning the unit for final installation –
restricted installation
> If the unit weighs more than 25 kg, it should always be
transported by two persons, where possible.
> Fix the unit bracket securely to the wall before lifting the
unit and placing it in position.
> If required, provide the work surface with sufficient pro-
tection against damage.
> Ensure that you hold the unit securely at the front and
side and lift it - if available - onto the work surface.
> Hold the unit in a balanced position and then lift it fur-
ther upwards and position it on the bracket.
> If the unit is being positioned on the bracket by two per-
sons, ensure that you have a firm grip on the front and
side/bottom of the boiler.
> Ensure your movements are coordinated if the unit is
being lifted by 2 persons, so that its weight is evenly distributed.
> Use safe lifting techniques – keep your back straight –
and bend your legs at the knee –if you are lifting some-
thing from the floor.
> Do not twist your body – instead, reposition your feet.
> During the entire lifting process, hold the boiler as close
as possible to your body to minimise the strain on your
back.
> If required, get somebody to assist you in this.
> Wear appropriate cut-resistant and non-slip gloves to
protect yourself against sharp edges and maintain a safe
and secure grip while handling the unit.
Positioning the unit for final installation – with
restricted installation position under the roof.
> If the unit weighs more than 25 kg, it should always be
transported by two persons, where possible.
> Ensure that you hold onto the front and side of the unit
securely, lift it, hold it in a balanced position and then lift
it further upwards and position it on the bracket.
> If the unit is being positioned on the bracket by two per-
sons, ensure that you have a firm grip on the front and
side/bottom of the boiler.
> Ensure your movements are coordinated if the unit is
being lifted by 2 persons, so that its weight is evenly distributed.
> If the unit is being positioned on the bracket by one per-
son, ensure that you have a firm grip and lift the boiler
from the bottom.
> Use safe lifting techniques – keep your back straight –
and bend your legs at the knee –if you are lifting some-
thing from the floor.
> Do not twist your body – instead, reposition your feet.
> During the entire lifting process, hold the boiler as close
as possible to your body to minimise the strain on your
back.
> If required, get somebody to assist you in this.
> Wear appropriate cut-resistant and non-slip gloves to
protect yourself against sharp edges and maintain a safe
and secure grip while handling the unit.
> Before setting up the unit, it is recommended that you
perform a risk assessment of the attic storey, in order to
check the access, floor rigidity, lighting, and railing, and
to take all required remedial actions before the unit is
installed.
14 ecoTEC plus installation and maintenance instructions 0020134823_01
4.3 Dimension drawing and connection
dimensions
G 1 1/4
4
7
Ø25
49
482
Installation
Key
1 Wall breakthrough for flue pipe
2 Flue pipe connection
3 Hanging bracket
4 Heating flow
5 Condensate siphon connection
6 Gas connection
7 Heating return
4.4 Requirements for the installation site
4
960
190
287
673
5
70
172 172
480
138
6
1
2
3
22
4.4.1 Required minimum clearances/installation
clearances
AB
477
CC
4.2 Recommended minimum clearances/installation clearances
680,5
Key
A 350 mm (flue pipe diameter 110/160 mm)
450 mm (with cascade design)
B 400 mm
C optional approx. 200 mm
> When using the accessories, observe the minimum clear-
ances/installation clearances.
> Where units are installed in cascade, observe the gradi-
ent of the flue pipe (approx. 50mm/m).
4.1 Connection dimensions in mm
ecoTEC plus installation and maintenance instructions 0020134823_01 15
175
603
When installing the 110/160 mm flue pipe,
observe the minimum clearances in accordance
i
A side gap is not required, however you can remove the
side panels if there is sufficient space at the side
(approx.200 mm) for maintenance.
It is not necessary to ensure sufficient clearance between
the boiler and combustible materials or components as the
temperature of the boiler will always be less than the maximum permissible temperature of 85 °C due to its nominal
heat output.
with ¬fig. 4.1.
Installation
4
4.5 Wall-mounting the boiler
Danger!
Risk of death if the load-bearing capacity
a
of the fixing elements used is insufficient!
If the fixing elements or wall do not have
sufficient load-bearing capacity, the boiler
can come loose and fall down. This may
also cause leaks in the gas line, which is
potentially fatal.
> When installing the boiler, make sure that
the fixing elements have a sufficient
load-bearing capacity.
> Check if the supplied fixing kit may be
used for the wall.
> Check the quality of the wall.
> If required, use individual stands from
the cascade programme which is availa-
ble as an accessory.
4.6 Removing/fitting the front casing
2
1
4.4 Removing the front casing
Removing the front casing
1
> Undo the screw (1)
> Push in both retaining clips (2) so that the front casing is
released.
> Pull the front casing forwards at the bottom edge.
> Lift the front casing upwards from the bracket.
4.3 Wall-mounting the boiler
> Fit the hanging bracket (1) to the wall using the rawl
plugs and screws provided with the unit.
> Hang the boiler (3) on the hanging bracket from above
using the suspension bracket.
Fitting the front casing
> Place the front casing on the upper brackets.
> Push the front casing onto the boiler until the retaining
clips (2) on the front casing snap into place. For support,
you can also pull the retaining clips (2) downwards at the
same time.
> Secure the front casing by tightening the screw (1).
16 ecoTEC plus installation and maintenance instructions 0020134823_01
Gas installation
5
5 Gas installation
The work described in this section must only be carried out
by a competent person.
5.1 Preparing for installation
Danger!
Risk of death caused by improper gas
a
a
b
b
installation!
An incorrect gas installation may result in
leaks and an explosion.
> During installation, the legal directives
and the local regulations for gas supply
companies must be observed.
Danger!
Risk of death caused by improper gas
installation!
Tension in the gas line may result in leaks
or an explosion.
> Make sure there are no stresses in the
gas lines when it is installed.
Caution.
Risk of material damage caused by incorrect gas installation.
Excess test pressure may cause damage to
the gas valve.
> When checking the gas valve for leak-
tightness, use a max. test pressure of
1.1kPa (110mbar).
> During the gas installation, ensure that
the home pressure regulation for the
required gas flow pressure of 5mbar is
maintained in accordance with the technical data (
Caution.
Risk of material damage caused by contaminated lines.
Foreign bodies, such as welding remnants,
sealing residue or dirt in the supply lines
for gas, may cause damage to the boiler.
> Blow the gas line thoroughly clean prior
to installation.
¬section18).
Caution.
Risk of material damage caused by the
b
5.2 Connecting the gas line
5.1 Gas connection
> Fit an approved gas valve to the unit with a screw
connector.
> Fit the gas supply line to the gas valve.
> Purge the gas line before you start up the unit.
> Check the gas connection for leak-tightness.
incorrect gas type.
Using the wrong gas type may cause a fault
shutdown on the boiler. Furthermore, ignition and combustion noise may occur in the
boiler.
> Only use the gas type specified in the
type overview (
¬section1.5).
ecoTEC plus installation and maintenance instructions 0020134823_01 17
Hydraulic installation
6
6 Hydraulic installation
The work described in this section must only be carried out
by a competent person.
6.1 Preparing for installation
Danger!
Risk of personal injury caused by incor-
a
Any condensate that occurs must only be fed in under consideration of the local regulations regarding neutralisation.
b
b
rect installation!
Heating water that leaks from the drain line
of the expansion relief valve can cause
severe burns.
> Install the expansion relief valve to
ensure that there is no danger to other
persons.
> Route a discharge pipe with inlet funnel
and siphon on the customer side from
the discharge line of the expansion relief
valve to a suitable drain.
> Make sure that the drain is visible.
Caution.
Risk of material damage caused by contaminated lines.
Foreign bodies such as welding remnants,
sealing residue or dirt in the water pipes
may cause damage to the boiler.
> Flush the heating installation thoroughly
prior to installation.
Caution.
Risk of damage from corrosion.
If non-diffusion-tight plastic pipes are used
in the heating installation, this may cause
air to enter the heating water and corrosion
of the heat generation circuit and the
boiler.
> If using non-diffusion-tight plastic pipes
in the heating installation, separate the
system by installing an external heat
exchanger between the boiler and the
heating installation.
Danger!
Risk of scalding and/or damage due to
a
b
b
The Vaillant ecoTEC boiler should be connected using a
Vaillant pump group with modulating pumps (available as
an accessory).
This pump group has a connection option for an expansion
vessel (right-hand connection) and an expansion relief valve
(left-hand connection). You can also purchase these as
accessories.
> When installing the pump group, observe the installation
sequence for the insulation and the hydraulic pipes
(¬pump group installation instructions).
> Note that the boiler pump must always be fitted in the
return line. Otherwise, this may lead to a unit fault.
When connecting several units in cascade operation, you
must install a non-return flap from the cascade connection
set for each individual unit in the unit supply.
A non-return flap from a third-party manufacturer must
have no more than 30mbar pressure losses for a volume
flow of 4.5m
leaking water.
Stresses in the supply line may cause leaks.
> Make sure there is no voltage in the sup-
ply lines when they are installed.
Caution.
Risk of damage caused by incorrect
installation.
Stresses in the supply line may cause leaks.
> Make sure there is no voltage in the sup-
ply lines when they are installed.
Caution.
Risk of damage caused by heat transfer
when soldering.
Heat that is transferred during soldering
may cause damage to the seals in the service valves.
> Do not solder the connection pieces if
the connection pieces are screwed to the
service valves.
3
/h.
18 ecoTEC plus installation and maintenance instructions 0020134823_01
Hydraulic installation
6
6.2 Connecting the heating flow and heating
return
Caution.
Risk of material damage caused by incor-
b
b
i
rect installation.
Stresses in the supply line may cause leaks.
> Make sure there is no voltage in the sup-
ply lines when they are installed.
Caution.
Risk of damage to the service valves.
> Do not solder the connection pieces if
the connection pieces are screwed to the
service valves.
Seals made of rubber-like materials may be sub-
ject to plastic deformation, which may lead to
pressure losses.
We recommend using seals made of a paste-like
fibre material.
Hydraulic connection
For connection to the system a hydraulic header has to be
used. In difficult cases a plate to plate heat exchanger is
recommended. In all instances the system water should be
adequately treated.
To this end, various plate heat exchangers are available as
accessories, depending on the output of a unit or in cascade connection. The pressure loss is adjusted to the pump
group that is offered as an accessory. The minimum volume
of circulating water is guaranteed in the unit circuit thanks
to the original plate heat exchangers and pump groups, provided the maximum pressure losses are not exceeded in the
piping.
To prevent contamination, it is recommended that you
install a dirt filter when using plate heat exchangers. This
prevents excessive contamination of the heat exchanger.
Back-purging devices for cleaning the plate heat exchanger
are to be placed on-site.
Ø 1 1/4"
6.2 Diameter of the supply lines
1
6.1 Installing the heating flow and heating return
> Insert a flat gasket in each.
> Screw the service valves onto the flow and return con-
nection (1) of the pump group.
> Screw the service valves to the customer's installation.
The diameter of the line is 1 1/2".
ecoTEC plus installation and maintenance instructions 0020134823_01 19
The following remaining feed heads are available at the unit
supply:
Power Description
80 kW Modulating pump
100 kW
120 kW
6.1 Remaining feed head pump group
If you are using a plate heat exchanger to hydraulically separate the system, the following pressure losses must be
maintained:
Modulating pump
Modulating pump
Remaining feed
head
0.042 MPa
(420mbar)
0.026 MPa
(260mbar)
0.024 MPa
(240mbar)
Hydraulic installation
min.
180
6
Power
< 120 kW
in conjunction with the hydraulic cascade
< 240 kW
< 360 kW
< 480 kW
< 600 kW
< 720 kW
6.2 System separation pressure loss
Max. pressure
loss (mbar)
86
96
76
82
87
92
6.3 Connecting the condensate drain pipework
Danger!
Risk of death from escaping flue gases!
a
An empty or insufficiently filled condensate
siphon may allow flue gases to escape into
the room air.
> Make sure that the condensate siphon is
filled with water when switching on the
boiler.
Danger!
Risk of death from escaping flue gases!
a
If the condensate drain pipework is connected tightly to a fixed connection on the
waste-water piping, the internal condensate
siphon can be fully drained until empty.
> Do not connect the condensate drain
pipework tightly to the waste-water
piping.
> It is recommended that the condensate
is drained into a tundish. The condensate
drain is totally sealed. It may be possible
to empty the trap due to syphonic action
causing leackage of combustion
products:
Condensate forms in the boiler during combustion. The condensate drain pipework routes the condensate to the waste
water connection via a tundish.
The boiler is equipped with a condensate siphon. The filling
height is 145mm. The condensate siphon collects any condensate that occurs and feeds it into the condensate drain
pipework.
1
2
3
6.3 Condensate siphon
Install the enclosed condensate siphon as follows:
> Place the condensate siphon on the underside of the
boiler on the condensate drain pipe and secure it using
the retaining clips.
> Leave an installation space of at least 180mm beneath
the condensate siphon so that you can clean the conden-
sate siphon in the case of service work.
> Check the connection for leaks.
> Check if a neutralising unit is required in accordance
with national regulations.
To connect the condensate drain pipework, proceed as
follows:
> Hang the condensate drain pipework of the boiler in the
pre-installed tundish.
> If required, guide the drain hose (1) of the automatic air
vent into the tundish.
The condensate drain pipework connected to the
condensate discharge of the boiler must have a
i
> The connections for the condensate drain pipework must
not be modified or blocked
> The condensate drain pipework must terminate in a suit-
able location.
downward gradient throughout its entire length
(45mm per metre) and should be installed and
connected within the building to prevent possible freezing.
20 ecoTEC plus installation and maintenance instructions 0020134823_01
Further information can be obtained from "BS 6798 Specification for installation of gas-fired boilers of rated input not
exceeding 70 kW net". Before the boiler is started up, the
condensate siphon (1) must be filled with water as
described in the relevant section.
6.4 Connecting the discharge pipe to the
min.
180
expansion relief valve on the heating
installation
The expansion relief valve for the heating installation can
be connected to the pump group (left-hand side)
> Install the drain line for the expansion relief valve so that
it is not damaged when removing and fitting the lower
part of the condensate siphon.
We do not recommend shortening the discharge
pipe that is supplied.
i
> Leave an installation space of at least 180mm beneath
the condensate siphon.
Hydraulic installation
6
1
2
3
6.4 Install the discharge pipe on the expansion relief valve
> Insert a seal (1) in the cap nut (2).
> Screw the discharge pipe (3) onto the expansion relief
valve.
> Make the drain line routing as short as possible and in a
downward gradient away from the boiler.
> Allow the line to terminate in such a way that nobody
can be injured and no cable or other electrical components can be damaged if water or steam is ejected.
> Please note that the end of the line must be visible.
ecoTEC plus installation and maintenance instructions 0020134823_01 21
Flue gas installation
7
7 Flue gas installation
7.1 Preparing for installation
Danger!
Risk of personal injury and material dam-
a
age due to unapproved flue pipes.
Vaillant boilers are certified only with genuine Vaillant flue pipes. The use of other
accessories may cause personal injury and
material damage as well as operating faults.
> Only use genuine Vaillant flue pipes.
You will find a list of genuine flue pipes in the
Vaillant installation instructions for flue pipes.
i
All ecoTEC plus boilers feature an 110/160mm diameter air/
flue gas connection as standard. Selecting the most suitable system depends on the individual installation and application conditions.
> When installing the flue pipe, observe the provisions of
the applicable national regulations.
> Agree the flue pipe with your chimney sweep.
> Lay the flue pipe with a downward gradient so that any
escaping condensate can easily flow into the drain
(siphon) provided for it without leaving any backwater
residues.
7.2 Installing the flue pipe
> Install the flue pipe using the enclosed installation
instructions.
7.1 Installation example: Vertical roof duct
7.3 Flue gas guiding opening
The following information applies to all flue pipe systems.
a. The terminal must be positioned so that the products
of combustion can disperse freely at all times.
b. Water vapour will sometimes be visible from the ter-
minal of the flue gas system. Fitting locations where
this could be a nuisance should be avoided.
c. If the terminal is installed less than 2 m above a bal-
cony, above ground or above a flat roof to which people have access, a suitable terminal guard must then
be provided and fitted (contact Tower Flue Components, Tonbridge, TN9 1TB).
Vertical flues must not terminate within 600mm
of an openable window, air vent or any other
i
The flue gas system must be attached or shielded in such a
way that ignition (causing fire) or damage to any part of the
building is avoided.
22 ecoTEC plus installation and maintenance instructions 0020134823_01
ventilation opening.
Flue gas installation
7
B
D,E
2m
H
E
7.2 Opening of the flue pipe
Installation site
Horizontal flue gas pipes
A Directly below an opening, air bricks, opening
windows, etc.
(5)
Above an opening, air bricks, opening windows,
B
etc.
C Horizontally to an opening, air bricks, opening
windows, etc.
D Below temperature-sensitive building compo-
nents e.g. plastic gutters, down pipes or wastewater pipes
(4)
Below eaves, adjacent to wastewater pipes 50 mm
E
F Below balconies or car port roofs 25 mm
(4)
G
From a vertical wastewater pipes or down pipes 50 mm
H From internal or external corners 50 mm
(2)
H
From the edges along to a terminal/outside
corner
J Opposite an edge or a terminal 2000 mm
(2)
J
From a surface facing a terminal 1000 mm
L From an opening in the car port (e.g. door,
window) which leads into the dwelling
M Vertical from a terminal 1500 mm
N Horizontal from a terminal 600 mm
Vertical flue gas pipes
P From another terminal 600 mm
Q Above the roof area 600 mm
(3)
R
From adjacent windows that cannot be opened 1000 mm
(2)
From an adjacent wall to the flue gas pipe 300 mm
S
7.1 Position of the opening of a fan-assisted flue gas guiding
Key:
(1)
There should be no ventilation/opening in the eaves within
600mm distance of the terminal.
(2)
These dimensions comply with the building regulations, but they
may need to be increased to avoid wall staining and nuisance
fron pluming depending on site conditions.
(3)
It is recommended that an elbow termination is fitted to direct
the plume away from windows.
(4)
If the pipe is shielded from the heat this dimension may be
reduced to 25mm.
A
S
Minimum
dimen-
sions
600 mm
600 mm
600 mm
25 mm
300 mm
N/A
P
Q
Q
B
C
A
B
C
M
H
H
N
(5)
The flue through the roof should not be located within the
shaded area.
(6)
Is is recommended that the terminal should not be located
below 2m in any occupied space.
BS 5440–1: It is recommended that the fanned flue terminal
should be positioned as follows:
– at least 2 m from an opening in the building directly
opposite, and
– so that the products of combustion are not discharged
directly across a property boundary.
– Dimensions D, E and F:
(1)
These clearances may be reduced to 25 mm without
affecting the performance of the boiler. In order to
ensure that the condensate vapour plume does not damage adjacent surfaces, the terminal should be extended
as shown in ¬fig.7.3.
– Dimension H:
This clearance may be reduced to 25mm without
adversely affecting the performance of the boiler. However, in order to ensure that the condensate vapour
plume does not damage adjacent surfaces, a clearance
of 300mm is preferred.
For IE, recommendations are given in the current issue
of the IS 813.
Balcony/eaves
Adequately secured
air/flue gas pipe
7.3 Opening of the flue gas system under balconies or eaves
The flue pipe must
protrude beyond any overhang
Gutter
ecoTEC plus installation and maintenance instructions 0020134823_01 23
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