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
2.2Required personnel qualifications
This manual is intended for persons with the following qualifications
2.2.1Authorised competent person
The installation, assembly and removal, start-up, maintenance, repair and decommissioning of Vaillant products and
accessories must only be carried out by authorised competent persons.
Note
Each competent person is qualified for specific
activities on the basis of their training. They must
only work on units if they have the required qualification.
When working on the units, the competent persons must
observe all applicable directives, standards, laws and other
regulations.
2.3General safety information
2.3.1Danger due to improper use
Vaillant auroTHERM VTK tube collectors are constructed
using state-of-the-art technology in accordance with the recognised safety rules and regulations. Nevertheless, there is
still a risk of injury or death to the user or others or of damage to the unit and other property in the event of improper
use or use for which it is not intended.
2.3.2Risk of death due to improper fastening
systems
The collectors may fall due to improper fastening systems.
Only the combination of Vailllant collectors and Vaillant
fastening systems has been tested. This combination can
withstand the forces caused by additional wind and snow
loads.
▶ Only use the collector fastening systems that are ap-
proved by Vaillant.
2.3.3Risk of death due to inadequate loadbearing capacity of the roof
A roof with an insufficient load-bearing capacity may collapse
due to the additional load of the collectors.
Above all, additional wind and snow loads may result in
higher forces which could cause the roof to collapse.
▶ Ensure that a structural engineer has confirmed the roof
as suitable for collector installation.
▶ Only install the collectors on a roof that has adequate
load-bearing capacity.
2.3.4Risk of death due to falling parts
Unsecured collectors can fall from the roof and present a
danger to persons.
▶ Block off the areas in the fall area below the place of
work to a sufficient extent so that persons cannot be injured by falling objects.
▶ Indicate the working area, e.g. with information signs, in
accordance with the applicable regulations.
2.3.5Risk of injury and material damage due to
incorrect maintenance and repairs
If maintenance or repair work is not carried out, or is carried
out incorrectly, this may result in injuries or in damage to the
solar plant.
▶ Ensure that only an approved competent person carries
out maintenance and repair work.
2.3.6Risk of death due to inadequate fastening
of the collectors
Collectors can fall from their anchors if they are not properly
fastened on the roof. Collectors falling from the roof could
cause life-threatening accidents.
▶ Perform all work steps as described in this manual.
▶ Observe all safety precautions described in this manual.
▶ In addition, comply with all safety regulations that spe-
cifically apply in your region.
2.3.7Risk of burns due to hot collector surfaces
In the event of solar radiation inside the units, collectors can
reach 300 °C. If you touch the collectors without protection,
you could burn yourself.
▶ Remove the sun protection film installed at the factory
only after the solar plant has been started up.
▶ Avoid performing installation and maintenance work un-
2.3.9Material damage caused by a high-pressure
cleaner
High-pressure cleaners may damage the collectors due to
the extremely high pressure.
▶ Never clean the collectors with a high-pressure cleaner.
2.3.10 Material damage due to lightning
Lightning can damage the collector system.
▶ Connect the collector system to a lightning protection
device in accordance with applicable regulations.
2.3.11 Frost damage due to water in the solar
circuit
Water residue in the collector may freeze in frosty conditions
and damage the collector.
▶ Never fill or flush the collector with water.
▶ Only fill and flush the collector with Vaillant ready-mixed
solar fluid.
▶ Check the solar fluid regularly with an antifreeze tester.
2.3.12 Material damage due to an unsuitable tool
An unsuitable tool may damage the solar plant.
▶ Only use a suitable tool.
▶ In particular, only use the tool specified in the work steps
of this manual.
▶ Bond the earthing pipe clamps to a busbar using 16 mm²
copper cable.
2.3.15 Risk of death and material damage due to
contact corrosion
For roofs or façade sections made of metals more precious
than aluminium (e.g. copper roof), contact corrosion may
occur on the brackets. Collectors could fall and put persons
at risk.
▶ Use suitable underlays to separate the metals.
2.3.16 Material damage due to snow falling from
roofs
If the collector field is installed below a sloping roof, then
snow falling from the roof may damage the collectors.
▶ Install snow fences above the collectors as protection
against falling snow.
2.4Intended use
2.4.1Intended use
Vaillant auroTHERM VTK tube collectors are used for solar
heating support and for solar-supported hot water generation.
2.4.2Suitability of the equipment
The collectors must only be operated with Vaillant readymixed solar fluid. Passing heating water or hot water directly
through the collectors constitutes improper use.
2.4.3Improper use
Any use which is not explicitly mentioned in the chapter "Intended use" (→ Page 6) is deemed improper.
Any other or additional use does not comply with the intended use. Any direct commercial or industrial use is also
deemed to be improper. The manufacturer/supplier is not liable for any damage resulting from such use. The user alone
bears the risk.
2.3.13 Risk of death from electric shock
Incorrect installation or a faulty power cable can result in a
supply voltage on the pipes, which can cause life-threatening
injuries.
▶ Secure earthing pipe clamps to the pipes.
▶ Connect the earthing pipe clamps to a busbar using 16
mm² copper cable.
2.3.14 Material damage due to overvoltage
Overvoltage may damage the solar plant.
▶ Earth the solar circuit to provide equipotential bonding
Vaillant auroTHERM VTK tube collectors must only be combined with components (fastenings, connections, etc.) and
system parts that are supplied by Vaillant. The use of other
components or system parts shall be considered as improper
use.
Safety 2
2.4.3.2 Installation in or on vehicles
Installation of the Vaillant auroTHERM VTK tube collector in
or on a vehicle is not permissible and is considered improper
use. Units that are not classed as vehicles are those that are
installed in a fixed and permanent location (known as "fixed
installation").
2.4.4Other applicable documents
Intended use includes the following:
– observance of accompanying operating, installation and
servicing instructions for Vaillant products as well as for
other parts and components of the system,
– installing and fitting the unit in accordance with the boiler
and system approval,
– compliance with all inspection and maintenance condi-
tions listed in the instructions.
2.5Regulations (directives, laws, standards)
2.5.1Installation regulations
Applies to: Great Britain
Technical Guidance
The system must be installed in accordance with all relevant
and applicable national regulations, and must be installed to
suit site conditions. Observe all national regulations, including:
– Working at Heights Regulations 2005
– Health and Safety at Work Act 1974
– Electricity at Work Regulations 1989
– IEE Wiring Regulations BS 7671
–
Lightning protection requirements
– Equipotential bonding of electrical installations.
Related documents
The installation of the solar system must be in accordance
with the relevant requirements of Health and Safety Document No. 635 (The Electricity at Work Regulations 1989),
BS7671 (IEE Wiring Regulations) and the Water Supply
(Water Fitting) Regulations 1999, or The Water Bylaws 2000
(Scotland). It should also be in accordance with the relevant
requirements of the Local Authority, Building Regulations,
The Building Regulations (Scotland), The Building Regulations (Northern Ireland) and the relevant recommendations
of the following British Standards:
– BS EN 806: Specification for installations inside buildings
conveying water for human consumption
– BS 6700: Services supplying water for domestic use
within buildings and their curtilages
– BS 5449 Forced circulation hot water central heating
systems for domestic premises. Note: only up to 45 kW
– BS. 6880 Low temperature hot water heating systems of
output greater than 45 kW
– Part 1 Fundamental and design considerations.
– Part 2 Selection of equipment
– Part 3 Installation, commissioning and maintenance
– BS 6114: Expansion vessels using an internal diaphragm
for unvented hot water supply systems
– BS. 4814 Specification for: Expansion vessels using an
internal diaphragm, for sealed hot water heating systems
– Unvented hot water systems must comply with building
regulation G section 3
2.5.2Regulations for the prevention of accidents
Applies to: Great Britain
When carrying out works such as solar installation work it is
necessary to do so in a safe and workman like manner, taking due care of any aspects of the works that could result in
injuries to person in or about the building as well as workers,
passers by and the general public at large. To that end these
works must conform, but not be limited to, the current regulations in force such as the following:
– Health and Safety at Work act 1974
– Work at Height Regulations 2005
– Electricity at Work Regulations 1989
– All necessary Building Regulations
Work should be preceded by a risk assessment covering all
aspects of health and safety risks, or training requirements
that can reasonably be foreseen to be associated with the
work. All scaffolding in the UK, other than prefabricated (zipup) scaffold towers, must be designed and constructed by a
vetted contractor, and have suitable kick boards, hand rails
and where appropriate netting. Areas around the scaffolding
should be zoned off and marked with suitable warning signs
to a suitable distance to protect persons from falling objects.
Workers should have available and use personal protective equipment as necessary. This would include equipment
such as fall protection systems, safety gloves, goggles, dust
masks as well as any specialised equipment that may be in
use such as lifting and handling equipment.
The completed works shall comply with all necessary BS EN
Standards and Codes of practice as well as Building control
or planning requirements and be confirmed where necessary
by notification to building control or the appropriate competence based notification body.
2.6CE label
The CE label documents that the appliances as
described in the type overview satisfy the basic requirements
of the following directives:
– Directive 97/23/EC of the European Parliament and
Council on the approximation of the laws of the member
states regarding pressure equipment
In the case of roof batten clearances greater than 460 mm, the 2-row and 3-row installations are not possible. In
this case, you can install the 2 or 3 rows individually (without using the same central roof anchor).
Conditions: Collector rows: 1
▶ Use the following table to put together the components for installation.
Number of VTK 1140/2 collectors1234567
ComponentsRequired sets
VTK installation set (basic set)
VTK installation set (extension set)
Roof bracket set type P (pantile)
Roof bracket set type S (slate)
Roof bracket set type S, flat (slate)
Roof anchor set, hanger bolt
Rail set (2 pcs), VTK 1140/2
1
1 set for connecting to the pipelines; the collectors are connected together using the extension set
2
valid up to 700 m above sea level
Number of VTK 1140/2 collectors123456
Number of VTK 570/2 collectors111111
ComponentsRequired sets
VTK installation set (basic set)
VTK installation set (extension set)
Roof bracket set type P (pantile)
Roof bracket set type S (slate)
Roof bracket set type S, flat (slate)
Roof anchor set, hanger bolt
−123456
2
1
2
2
2
3
1234567
123456
2
2
2
3
2
4
1
1
2
4
1
1
2
5
2
5
2
6
2
6
2
7
2
7
VTK 1140/2 rail set
VTK 570/2 rail set
1
1 set per row for connecting to the pipelines; the collectors are connected together using the extension set
1.Ask the local building authority for the regional maximum snow load sk.
Conditions: Maximum snow load: ≤ 3 kN/m²
▶ Install 4 roof brackets per collector.
Conditions: Maximum snow load: 3 < × ≤ 4.5 kN/m²
▶ Install 6 roof brackets per collector.
Conditions: Maximum snow load: > 4.5 kN/m²
▶ Compile statistics for the individual case.
▶ Ensure that the maximum permissible snow load per
collector is 5.4 kN/m².
Note
The maximum permissible load per roof
bracket type S/type P is: F
2.If you are using extension sets, ensure that the roof
bracket is positioned centrally with equal clearances.
4.1.7Defining the edge clearances of the roof
brackets
Maximum lift points caused by wind loads can occur at
the cut-away edges of wall and roof areas (e.g. verge and
eaves). These maximum lift points result in high loads on the
collectors and installation systems.
Areas in which lift points occur are called edge areas. Corner
areas are zones in which edge areas overlap and especially
high pull forces occur.
Edge and corner areas must not be used as installation
areas.
= 1.875 kN.
max
b
[m]
56789101112131415
81.0
91.0
101.0
11
1.0
12
1.0
13
1.0 1.2
14
1.0 1.2
15
1.0 1.2 1.4
16
1.0 1.2 1.4
17
1.0 1.2 1.4 1.6
18
1.0 1.2 1.4 1.6
l
[m]
56789101112131415
101.0
11
1.0
12
1.0
13
1.0 1.2
14
1.0 1.2
15
1.0 1.2 1.4
16
1.0 1.2 1.4
17
1.0 1.2 1.4 1.6
18
1.0 1.2 1.4 1.6
19
1.0 1.2 1.4 1.6 1.8
20
1.0 1.2 1.4 1.6 1.8
H [m]
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
h [m]
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
▶ When installing the roof brackets, observe the calculated
edge clearances.
b Building width
h Building height
▶ Calculate the building width w, building height h and
building length l.
▶ The values for the edge clearances to be observed, e
The roof brackets have different clearances depending on
the array configuration of the collectors (adjacent or on top of
each other).
short
4 On-roof fitting and installation
n
A
C
D
BB BB
A
A
E
A
C
D
BB BB
A
E
A
E
4.1.8.1
Adjacent array configuration
4.1.8.2Array configuration on top of each
other
Note
In the case of roof batten clearances greater than
460 mm, the 2-row and 3-row installations are not
possible. In this case, you can install the 2 or 3
rows individually (without using the same central
roof anchor).
Conditions: Collector rows: 2
1.Define the clearances of the roof brackets.
Quantity
VTK
570/2
2.Ensure that there is sufficient play for the anchors.
– Pre-installation dimension (*): = Finished installation