Vaillant auroTHERM exclusive VTK SERIES, auroTHERM exclusive VTK 570/2, auroTHERM exclusive VTK 1140/2 Installation Manual
Page 1
For the competent person
Installation manual
Installation manual
auroTHERM exclusive
VTK 570/2, VTK 1140/2
GB, IE
Page 2
Legal information
Document type: Installation manual
Product: auroTHERM exclusive
– VTK 570/2
– VTK 1140/2
Target group: Authorised competent person
Language: EN
Document number_version: 0020077994_03
Created on: 26.10.2012
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Telefon +49 21 91 18‑0 Telefax +49 21 91 18‑28 10
info@vaillant.de www.vaillant.de
© Vaillant GmbH 2012
These instructions, or extracts thereof, may only be printed with the written consent of Vaillant GmbH.
All designations of products in these instructions are brand names/trade marks of the companies in question.
We reserve the right to make technical changes.
Page 3
Contents
1 Notes on the documentation .............................. 4
1.1 Symbols used ........................................................ 4
1.2 Observing other applicable documents ................. 4
1.3 Document storage ................................................. 4
1.4 Applicability of the instructions .............................. 4
1.5 Name ..................................................................... 4
2 Safety .................................................................... 5
2.1 Action-related warnings......................................... 5
2.2 Required personnel qualifications ......................... 5
2.3 General safety information .................................... 5
2.4 Intended use.......................................................... 6
2.5 Regulations (directives, laws, standards).............. 7
2.6 CE label ................................................................. 7
3 Description of the unit......................................... 8
3.1 Type overview........................................................ 8
3.2 Information on the identification plate.................... 8
3.3 Purpose of the unit................................................. 8
4 On-roof fitting and installation ........................... 8
4.1 Preparing for fitting and installation ....................... 8
4.2 Carrying out the installation................................. 18
4.3 Completing and checking the installation ............ 25
5 Flat roof fitting and installation........................ 26
5.1 Preparing for fitting and installation ..................... 26
5.2 Carrying out the installation................................. 39
5.3 Completing and checking the installation ............ 46
6 Inspection and maintenance ............................ 47
6.1 Maintenance plan ................................................ 47
6.2 Observing inspection and maintenance
intervals ............................................................... 47
6.3 General inspection and maintenance
instructions........................................................... 47
6.4 Preparing for inspection and maintenance.......... 47
6.5 Checking collectors and connections for
damage, dirt and lack of tightness....................... 47
6.6 Cleaning collectors .............................................. 48
6.7 Checking brackets and collector components
for firm seating..................................................... 48
6.8 Check the pipe insulations for damage ............... 48
6.9 Replacing damaged pipe insulations................... 48
6.10 Disposing of damaged pipe insulations............... 48
7 Troubleshooting ................................................ 48
7.1 Spare parts for repair........................................... 48
7.2 Carrying out repairs ............................................. 48
8 Decommissioning.............................................. 49
8.1 Temporary decommissioning .............................. 49
8.2 Permanently decommissioning............................ 50
9 Customer service............................................... 50
10 Technical data.................................................... 51
10.1 Technical data table............................................. 51
10.2 Dimensions.......................................................... 52
10.3 Efficiency and pressure loss................................ 53
Index ................................................................................... 55
Contents
0020077994_03 auroTHERM exclusive Installation manual 3
Page 4
1 Notes on the documentation
n
1 Notes on the documentation
1.1 Symbols used
Symbols
The following symbols may appear:
Warning symbol (→ Page 5)
Information symbol
Symbol for a required action
Symbol for the result of an action
Symbol for the completion of records and checklists
Symbol for a required qualification
1.3 Document storage
Document handover
▶ Pass this installation manual and all other applicable
documents and, if necessary, any required tools to the
system operator.
Availability of documents
The system operator is responsible for storing the documents so that they are available whenever required.
1.4 Applicability of the instructions
These instructions apply for the following only:
Collector types and article numbers
VTK 570/2
VTK 1140/2
1.5 Name
In this manual, tube collectors are referred to as collectors.
0010002225
0010002226
Symbol for a required tool
Symbol for the specification of a technical value
Symbol for adjacent array configuration
Symbol for array configuration on top of each
other
1.2 Observing other applicable documents
▶ All installation instructions for the component parts and
components of the solar plant must be observed when
installing the collectors.
These installation instructions are enclosed with the various
system parts and supplementary components.
4 Installation manual auroTHERM exclusive 0020077994_03
Page 5
Safety 2
2 Safety
2.1 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
2.2 Required personnel qualifications
This manual is intended for persons with the following qualifications
2.2.1 Authorised 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.
2.3 General safety information
2.3.1 Danger 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.
2.3.2 Risk 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.
2.3.3 Risk 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.
2.3.4 Risk 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.
2.3.5 Risk 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.
2.3.6 Risk 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.
2.3.7 Risk 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-
der direct sunlight.
0020077994_03 auroTHERM exclusive Installation manual 5
Page 6
2 Safety
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in the morning.
▶ Wear suitable safety gloves.
2.3.8 Risk of injury due to breaking glass
The glass of the collectors may break due to mechanical
destruction or torsion.
▶ Wear suitable safety gloves.
▶ Wear suitable protective goggles.
2.3.9 Material 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.
2.4 Intended use
2.4.1 Intended use
Vaillant auroTHERM VTK tube collectors are used for solar
heating support and for solar-supported hot water generation.
2.4.2 Suitability 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.
2.4.3 Improper 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
and overvoltage protection.
▶ Secure earthing pipe clamps to the pipes.
6 Installation manual auroTHERM exclusive 0020077994_03
2.4.3.1 Combination with other components
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.
Page 7
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").
2.4.4 Other 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.
2.5 Regulations (directives, laws, standards)
2.5.1 Installation 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
2.5.2 Regulations 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.
2.6 CE 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
0020077994_03 auroTHERM exclusive Installation manual 7
Page 8
3 Description of the unit
Serial-No.
3 Description of the unit
3.1 Type overview
– VTK 570/2
– VTK 1140/2
3.2 Information on the identification plate
Information on the identification plate
VTK 570/2
VTK 1140/2
VTK Vaillant tube collector
570, (1140) Collector output
/2 Unit generation
auroTHERM exclusive Unit type
Vacuum tube collector Tube collector
AG Gross area
VF Liquid volume
m Weight
l Dimensions
Qmax Max. output
tstgf Stagnation temperature
Pmax Max. permissible operating
Meaning
CE label:
The collectors comply with
the relevant product-specific
European guidelines.
Solar Keymark:
The collectors have been
successfully tested according
to the rules and requirements
for the Solar Keymark.
Read the installation manual.
Type designation
pressure
Bar code with serial number
The 7th to 16th digits of the
serial number form the article
number
4.1 Preparing for fitting and installation
4.1.1 Delivery, transport and positioning
4.1.1.1 Storing collectors
▶ To prevent moisture from penetrating into the collector,
always store the collectors dry and in a weatherproof
area.
3.3 Purpose of the unit
The collectors are used for solar heating support as well as
for solar-supported hot water generation.
4 On-roof fitting and installation
▶ When fitting and installing the collectors, you must ob-
serve the chapter "Safety".
8 Installation manual auroTHERM exclusive 0020077994_03
Page 9
4.1.1.2 Checking the scope of delivery
1
3
2
5
8
9
10
7
11
12
4
6
On-roof fitting and installation 4
List of materials for on-roof installation
1 VTK 1140/2 rail set, 2 units
2 VTK 570/2 rail set, 2 units
3 VTK 570/2 tube collector, 1 unit
4 VTK 1140/2 tube collector, 1 unit
5 VTK installation set (basic set), 1 unit
6 VTK installation set (extension set), 1 unit
7 Stop valve, 2-way VTK for parallel connection, 1 unit
8 Roof bracket type P (for pantile) (basic set), 4 units
Roof bracket type P (for pantile) (extension set, on top of
each other), 2 units
▶ Use the image to check that the installation sets are complete.
9 Roof bracket type S (for beaver tail, etc.) (basic set),
4 units
Roof bracket type S (for beaver tail, etc.) (extension set,
on top of each other), 2 units
10 Roof bracket type S flat (for beaver tail, etc.) (basic set),
4 units
Roof bracket type S flat (for beaver tail, etc.) (extension
set, on top of each other), 2 units
11 Hanger bolt fastening set (basic set), 4 units
Hanger bolt fastening set (extension set, on top of each
other), 2 units
12 Long base, hook type P, 4 units
Note
Not all roof bracket types are available in all countries.
0020077994_03 auroTHERM exclusive Installation manual 9
Page 10
4 On-roof fitting and installation
max. 7 x VTK 1140/2
4.1.1.3 Transporting collectors
1. To protect the collectors against damage, always transport them when they are standing horizontally.
2. Transport the collectors to the roof using suitable aids.
4.1.2 Complying with clearances and installation
clearances
In order to fit the collectors correctly, the specified clearances and installation clearances must be observed.
▶ For the necessary edge clearances, see chapter "Defin-
ing edge clearances of the roof brackets".
4.1.3 Selecting suitable connection
▶ Select the appropriate connection for the collectors.
Conditions: Parallel connection, aperture surface area: ≤ 7 m²
▶ Always connect as many collectors as possible in series,
even when several collector rows are arranged on top of
each other.
Note
Up to an aperture surface area of 7 m²
(accordingly for 3 pcs VTK 1140/2 + 1 pc
VTK 570/2), you must switch the collectors in
series.
▶ Ensure that the solar fluid flows through the collectors
either from left to right or from right to left.
Conditions: Number of VTK 1140/2 collectors: 1 … 7
▶ Switch up to 7 VTK 1140/2 units in series (according to
the 14 m² aperture surface area).
Conditions: Parallel connection, aperture surface area: ≥ 14 m²
▶ Set up several parallel collector rows and connect these
hydraulically in parallel.
▶ Always connect as many collectors (at least 7 m²) as
possible in series.
10 Installation manual auroTHERM exclusive 0020077994_03
Page 11
Conditions: Parallel connection
▶ To avoid pressure losses in the sub-collector fields, only
use parallel connection for collector rows with the same
number of collectors.
▶ Ensure that each sub-collector field has the same total
tube length in the flow and return (Tichelmann system), in
order to avoid pressure losses in the connection tubes.
On-roof fitting and installation 4
4.1.4 Preparing the roof duct
Caution.
Building damage due to penetrating wa-
ter.
If the roof duct is not prepared properly, water
may penetrate the building interior.
▶ Ensure that the roof duct is prepared prop-
erly.
1. Make a v-shaped cut in the roofing felt membrane.
2. Fold the upper, wider flap onto the roof batten above,
and fold the lower, narrower flap onto the roof batten
below.
3. Fix the roofing felt membrane tight to the roof batten, so
that any moisture runs off to the side.
0020077994_03 auroTHERM exclusive Installation manual 11
Page 12
4 On-roof fitting and installation
4.1.5 Putting together components
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: 1
▶ Use the following table to put together the components for installation.
Number of VTK 1140/2 collectors 1 2 3 4 5 6 7
Components Required 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 collectors 1 2 3 4 5 6
Number of VTK 570/2 collectors 1 1 1 1 1 1
Components Required 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
− 1 2 3 4 5 6
2
1
2
2
2
3
1 2 3 4 5 6 7
1 2 3 4 5 6
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
2
Valid up to 700 m above sea level
12 Installation manual auroTHERM exclusive 0020077994_03
1 2 3 4 5 6
1
Page 13
Conditions: Collector rows: 2
A
B
A
On-roof fitting and installation 4
▶ Use the following table to put together the components for installation.
Number of VTK 1140/2 collectors per row 1 2 3 4 5 6 7
Components Required sets
VTK installation set (basic set)
VTK installation set (extension set)
− 2 4 6 8 10 12
Roof bracket set type P (pantile)
Roof bracket set type S (slate)
Roof bracket set type S, flat (slate)
2
1
A
2
2
2
3
Roof anchor set, hanger bolt
Roof bracket set type P (pantile)
Roof bracket set type S (slate)
Roof bracket set type S, flat (slate)
2
1
B
2
2
2
3
Roof anchor set, hanger bolt
Rail set (2 pcs), VTK 1140/2
1
1 set per row for connecting to the pipelines; the collectors are connected together using the extension set – if the rows are also
connected together so that they are flat-sealed.
2
Valid up to 700 m above sea level
2 4 5 6 10 12 14
1
2
2
4
2
4
2
5
2
5
2
6
2
6
2
7
2
7
0020077994_03 auroTHERM exclusive Installation manual 13
Page 14
4 On-roof fitting and installation
A
B
B
A
Conditions: Collector rows: 3
▶ Use the following table to put together the components for installation.
Number of VTK 1140/2 collectors per row 1 2 3 4 5 6 7
Components Required sets
VTK installation set (basic set)
VTK installation set (extension set)
Roof bracket set type P (pantile)
Roof bracket set type S (slate)
− 3 6 9 12 15 18
2
1
A
2
2
2
3
Roof bracket set type S, flat (slate)
Roof bracket set type P (pantile)
2
2
Roof bracket set type S (slate)
Roof bracket set type S, flat (slate)
Rail set (2), VTK 1140/2
1
1 set per row; the collectors are connected together using the extension set – if the rows are also connected together so that
they are flat-sealed.
2
Valid up to 700 m above sea level
B
3 6 9 12 15 18 21
2
4
2
6
1
3
2
4
2
8
10
2
5
2
12
2
6
2
14
2
7
2
14 Installation manual auroTHERM exclusive 0020077994_03
Page 15
On-roof fitting and installation 4
e
lang
e
kurz
h
b
l
4.1.6 Determining the number of required roof
brackets
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.
4.1.7 Defining 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]
5 6 7 8 9 10 11 12 13 14 15
8 1.0
9 1.0
10 1.0
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]
5 6 7 8 9 10 11 12 13 14 15
10 1.0
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
and e
0020077994_03 auroTHERM exclusive Installation manual 15
can be found in the following tables.
long
l Building length
4.1.8 Defining the roof bracket clearances
The roof brackets have different clearances depending on
the array configuration of the collectors (adjacent or on top of
each other).
short
Page 16
4 On-roof fitting and installation
n
A
C
D
B B B B
A
A
E
A
C
D
B B B B
A
E
A
E
4.1.8.1
Adjacent array configuration
4.1.8.2 Array 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
VTK
1140/2
‑ 1
‑ 2
‑ 3
‑ 4
‑ 5
‑ 6
‑ 7
1 1
1 2
1 3
1 4
1 5
1 6
A B C D
VTK
1663 * /
1638 **
100 -
200
VTK
dimension (**) + 20-25 mm
997 1197
‑‑‑‑‑
507 -
607
1140
570
1397
2794
4191
5588
6985
8382
9779
2104
3501
4898
6295
7692
8382
▶ Define the clearances of the roof brackets.
Quantity
VTK
570/2
VTK
1140/2
‑ 1
‑ 2
‑ 3
‑ 4
‑ 5
‑ 6
‑ 7
1 1
1 2
1 3
A B C D E
VTK
1140
997 -
200
1197
‑‑‑‑‑
VTK
507 -
607
570
1663 * /
1638 **
100 -
1397
2794
4191
5588
6985
8382
9779
2104
3501
4898
3322
16 Installation manual auroTHERM exclusive 0020077994_03
Page 17
On-roof fitting and installation 4
E
A
C
D
B B B B
A
E
A
E
Quantity
VTK
570/2
VTK
1140/2
1 4
1 5
1 6
A B C D E
VTK
1140
1663 * /
1638 **
100 -
200
997 1197
VTK
507 -
‑‑‑‑‑
607
6295
7692
570
8382
▶ Ensure that there is sufficient play for the anchors.
– Pre-installation dimension (*): = Finished installation
dimension (**) + 20-25 mm
Conditions: Collector rows: 3
3322
▶ Define the clearances of the roof brackets.
Quantity
VTK
570/2
VTK
1140/2
‑ 1
‑ 2
‑ 3
‑ 4
‑ 5
‑ 6
‑ 7
A B C D E
1397
VTK
1140
1663 * /
1638 **
100 -
200
997 1197
VTK
507 -
‑‑‑‑‑
607
2794
4191
5588
6985
570
8382
9779
5006
0020077994_03 auroTHERM exclusive Installation manual 17
Page 18
4 On-roof fitting and installation
1
3
2
A
2
1
B
5 mm
1
2
3
4
Quantity
VTK
570/2
▶ Ensure that there is sufficient play for the anchors.
– Pre-installation dimension (*): = Finished installation
VTK
1140/2
1 1
1 2
1 3
1 4
1 5
1 6
A B C D E
1663 * /
1638 **
dimension (**) + 20-25 mm
100 -
200
VTK
997 -
1197
‑‑‑‑‑
VTK
507 -
607
1140
570
2104
3501
4898
6295
7692
8382
5006
4.2 Carrying out the installation
The installation steps and notes in these instructions apply
for both array configurations. Any different installation steps
are clearly indicated in individual cases.
4.2.1 Installing roof brackets
4.2.1.1 Installing type P (for pantile)
1 Lower roof bracket
2 Top roof bracket
1. Use the top, middle and lower type P roof brackets
shown.
3 Middle roof bracket
2. Secure the type P roof bracket either to the rafters (A)
or to the roof batten (B).
3. To do this, loosen the bolt (1) on the base of the roof
bracket with the enclosed bit and unscrew the bolt by
approx. 5 mm.
4. If you wish to secure the roof bracket onto the rafters,
turn the base (2) outwards (A).
5. If you wish to secure the roof bracket onto the roof batten, turn the base (2) inwards (B).
Conditions: Fastening type: To rafters
▶ Define the clearances of the roof brackets. (→ Page 16)
▶ Expose the rafters at the corresponding position (1).
▶ Position the roof bracket (2). Ensure the correct position
of the top, middle and lower roof brackets.
18 Installation manual auroTHERM exclusive 0020077994_03
▶ Undo the top bolt until the height of the roof bracket can
be adjusted (3).
– Working materials: SW 13 spanner
Page 19
▶ Adjust the roof bracket to the height of the pantiles, so
5
6
A
B
1
3
2
4
5
6
A
2
1
that the top part of the roof bracket lies on the roofing
(4).
▶ Tighten the top bolt.
– Working materials: SW 13 spanner
▶ Screw the roof bracket onto the rafters using the three
bolts supplied (5).
▶ Slide the pantiles into their original position again (6).
▶ To ensure that the tiles lie tightly together, notch gut-
tering onto the underside (A) or the top side (B) of the
pantile using a hammer, if necessary.
On-roof fitting and installation 4
▶ Adjust the roof bracket to the height of the pantiles, so
that the top part lies on the roofing and the bottom part is
pushed tight against the roof batten from the bottom (4).
▶ Ensure that the roof bracket fits securely around the roof
batten and pantile when it engages.
Note
For some roof types, it may be necessary to
offset the roof bracket laterally opposite the
rafters.
To do this, use the accessory "long base"
article number 0020080177 (not available in
all countries).
Conditions: Fastening type: To roof batten
▶ Tighten the top bolt (5).
– Working materials: SW 13 spanner
▶ Slide the pantiles into their original position again (6).
▶ To ensure that the tiles lie tightly together, notch gutter-
ing onto the underside of the pantiles (A) using a hammer, if necessary.
4.2.1.2 Installing type S (for slate)
▶ Define the clearances of the roof brackets. (→ Page 16)
▶ Slide one to two pantiles upwards at the corresponding
position above the roof batten (1).
▶ Undo the top bolt until the height of the roof bracket can
be adjusted (2).
– Working materials: SW 13 spanner
▶ Hang the roof bracket on the roof batten (3). Ensure that
the top, middle and lower roof brackets are positioned
correctly.
1. Define the clearances of the roof brackets. (→ Page 16)
2. At the appropriate position, expose the rafters or roof
batten (1).
3. Position the roof bracket. Ensure the correct position of
the top, middle and lower roof brackets (2).
0020077994_03 auroTHERM exclusive Installation manual 19
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4 On-roof fitting and installation
4
3
2
1
4
3
1
2
3
6
4
5
4. Screw the roof bracket onto the roof batten or rafters
using the three screws supplied (3).
5. Slide the pantiles into their original position again (4).
4.2.1.3 Installing type S flat (for slate)
4.2.1.4 Installing the hanger bolt type
1. Define the clearances of the roof brackets. (→ Page 16)
2. At the corresponding position, drill a hole in the pantile
(1).
3. Tighten the hanger bolt onto the rafters through the
pantile(2).
1. Define the clearances of the roof brackets. (→ Page 16)
2. At the appropriate position, expose the rafters or roof
batten (1).
3. Position the roof bracket. Ensure that the top, middle
and lower roof brackets (2) are positioned correctly.
4. Screw the roof bracket onto the roof batten or rafters
using the three screws supplied (3).
5. Slide the pantiles into their original position again (4).
4. Position the central nut so that, after inserting the upper
part of the roof bracket, the front contact area lies on
the roofing (3). Ensure the correct positioning of the top,
middle and lower roof brackets.
5. Position the roof bracket on the central nut (4).
6. Screw the second nut on and tighten (5).
– Working materials: SW 17 spanner
7. Disconnect the threaded rod directly above the nut (6).
8. Deburr the interface.
20 Installation manual auroTHERM exclusive 0020077994_03
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On-roof fitting and installation 4
1
2
1
4.2.2 Installing collectors
Danger!
Personal injury and material damage due
to a falling collector.
Improper fastening may cause a collector to
fall.
▶ Tighten the clamping elements.
▶ Check for proper tensioning by shaking
the clamping blocks.
▶ If a clamping block is mobile, tighten the
nut again.
1. Install the collectors on the roof as specified in the following sections.
Note
Mounting rails and clamping elements cannot
be moved at the same time.
Installing mounting rails
Taring mounting rails
7. Secure the mounting rails horizontally.
8. Compensate for any height differences by moving the
clamping elements.
9. To do this, pull the clamping element upwards (1),
move it (2) and release it so that it engages.
Laying and hooking collectors
2. Secure the mounting rails with the clamping elements to
the roof anchors.
3. Position the lower rail as far as possible downwards on
the roof bracket.
Connecting mounting rails
4. Insert the connecting elements laterally into the mounting rails until you feel them engage .
5. Connect the mounting rails underneath each other.
6. Secure the mounting rails with the clamping elements to
the roof anchors.
Danger!
Risk of burns and scalding!
In the event of solar radiation inside the units,
collectors can reach 300 °C.
▶ Avoid working in direct sunlight.
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in
the morning.
▶ Wear suitable safety gloves.
10. Position the collector on the lower mounting rail (top
collector).
11. Hook the collector in on the clamping elements.
12. Ensure that the top clamping block (1) of the clamping
element is above the rail of the collector.
13. Tighten the clamping elements of the lower mounting
rail.
– Working materials: SW 13 spanner
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Page 22
4 On-roof fitting and installation
1
1
1
2
A
B
Loosening the sun protection film
14. To ensure that the sun protection film can be easily removed after starting up the unit, loosen the sun protection film from the edges of the collector.
Removing the carrying strap
Fitting connectors
18. Screw the double nipple (A) (from installation set VTK
extension set, article number 0020076779) in the
thread of the second collector (B) with the cap nut (2) of
the first collector.
19. Push the collectors together.
Tightening the clamping ring connection
15. Remove the carrying strap.
Installing additional collectors
Caution.
Risk of damage to the collectors as a res-
ult of improper installation.
If the hydraulic connections are not installed
properly, the stainless steel tubes inside the
collector may become damaged.
▶ When tightening the clamping ring con-
nection, hold a second spanner against it.
20. Screw the two cap nuts securely onto the double
nipple.
21. Tighten the clamping elements of the lower mounting
16. Position the next collector on the lower mounting rail.
17. Ensure that the upper clamping block (1) of the clamping element is above the rail of the collector.
rail.
– Working materials: SW 13 spanner
Completing collector rows
22. Install an additional collector. (→ Page 22)
23. Fit the connectors. (→ Page 22)
24. Tighten the clamping ring on the connection for both
collectors. (→ Page 22)
22 Installation manual auroTHERM exclusive 0020077994_03
Page 23
On-roof fitting and installation 4
1
3
1
2
2
1
3
Positioning the top mounting rails
25. Slide the upper mounting rails until they are flush with
the collectors.
26. Ensure that the clamping block (1) of the clamping elements lies over the collector rails.
27. Tighten the clamping elements of the top mounting
rails.
– Working materials: SW 13 spanner
Positioning the central mounting rail
Conditions: Collector rows: 2 … 3
Installing the upper collectors
Conditions: Collector rows: 2 … 3
▶ Place the upper collector (1) into the central mounting
rail (2).
▶ Tightly screw in the clamping elements (3) of the central
rail.
– Working materials: SW 13 spanner
▶ Install the collector row in the same way as for the first
collector row.
▶ Complete the collector row. (→ Page 22)
▶ Position the top mounting rails. (→ Page 23)
▶ Slide the central mounting rail until it is flush with the
lower collector (3).
▶ Ensure that the top clamping block of the clamping ele-
ment (2) is above the edge of the collector.
▶ Secure the mounting rail (1) for the next collector row to
the clamping element.
4.2.3 Installing hydraulic connections
Caution.
Lack of tightness due to incorrect ac-
cessories.
Incorrect accessories may result in lack of
tightness of the solar circuit and cause material damage.
▶ Only work in the solar circuit with hard
soldered connections, flat seals, compression fittings or press fittings which have
been approved by the manufacturer for
0020077994_03 auroTHERM exclusive Installation manual 23
Page 24
4 On-roof fitting and installation
13
2
use in solar circuits and at correspondingly high temperatures.
Caution.
Risk of damage to the collectors as a res-
ult of improper installation.
If the hydraulic connections are not installed
properly, the stainless steel tubes inside the
collector may become damaged.
▶ When tightening the clamping ring con-
nection, hold a second spanner against it.
1. Connect the collector flow and return to the system with
the connection tubes.
Conditions: System with collector sensor
▶ Insert the collector sensor into the opening provided on
the collector flow side ("hot side").
Note
In general, the collector sensor can be attached to the right or left side of the collector
field because the collectors on both sides
have a corresponding opening.
Conditions: Collector rows: 2 … 3
▶ Insulate the hydraulic system connections using the in-
sulation (2) (from installation set VTK extension set, article number 0020076779).
▶ Connect the collectors in accordance with the connec-
tion regulations (→ Page 10).
▶ Connect the collector flow and return to the system with
the connection tubes.
▶ To do this, connect the clamping ring connection (from
the installation set VTK basic set, article number
0020076776) to the collector.
▶ Connect the clamping ring connection with the connec-
tion pipework.
▶ Check the connections for tightness.
Insulating hydraulic connections
Conditions: Start-up carried out
▶ Insulate the hydraulic connections using the insulation
(1) (from installation set VTK extension set, article number 0020076779).
▶ Cover the insulation with the cover plate (3) (from
installation set VTK extension set, article number
0020076779).
24 Installation manual auroTHERM exclusive 0020077994_03
Page 25
On-roof fitting and installation 4
4.3 Completing and checking the installation
4.3.1 Checking installation
Use the following checklist to ensure that all work steps have been performed.
Operations Yes No Comments
All hydraulic connections tightened
Hydraulic connections routed correctly
VR 11 collector sensor connected
(Only for systems WITH a collector sensor)
All clamping elements tightened
Collectors connected to lightning protection device
(Optionally for lightning protection device)
Pressure testing performed
(Ideally with compressed air)
All connections tight
Date Signature
All installation work has been
performed correctly. ˍ ˍ . ˍ ˍ . ˍ ˍ ˍ ˍ
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
0020077994_03 auroTHERM exclusive Installation manual 25
Page 26
5 Flat roof fitting and installation
4.3.2 Disposing of the packaging
The transport packaging consists largely of recyclable materials.
▶ Observe the applicable regulations.
▶ Dispose of the transport packaging properly.
5 Flat roof fitting and installation
▶ When fitting and installing the collectors, you must ob-
serve the chapter "Safety".
5.1 Preparing for fitting and installation
5.1.1 Delivery, transport and positioning
5.1.1.1 Storing collectors
▶ To prevent moisture from penetrating into the collector,
always store the collectors dry and in a weatherproof
area.
26 Installation manual auroTHERM exclusive 0020077994_03
Page 27
5.1.1.2 Checking the scope of delivery
1
2
3
7
6
8
9
10
5
4
Flat roof fitting and installation 5
List of materials for flat roof installation
1 VTK 1140/2 rail set, 2 units
2 VTK 570/2 rail set, 2 units
3 Frame set, 1 unit
4 Load plates from load plate set, 4 units
5 Hammer-head bolt and nut from load plate set, 2 units
6 VTK 570/2 tube collector, 1 unit
7 VTK 1140/2 tube collector, 1 unit
8 Stop valve, 2-way VTK for parallel connection, 1 unit
9 VTK installation set (basic set), 1 unit
10 VTK installation set (extension set), 1 unit
▶ Use the image to check that the installation sets are complete.
0020077994_03 auroTHERM exclusive Installation manual 27
Page 28
5 Flat roof fitting and installation
max. 7 x VTK 1140/2
5.1.1.3 Transporting collectors
1. To protect the collectors against damage, always transport them when they are standing horizontally.
2. Transport the collectors to the roof using suitable aids.
5.1.2 Complying with clearances and installation
clearances
During storms, strong wind forces occur along the edges of
flat roofs.
▶ When defining the installation position, maintain an edge
clearance of at least 1 m from the roof edge.
5.1.3 Selecting suitable connection
▶ Select the appropriate connection for the collectors.
Conditions: Parallel connection, aperture surface area: ≤ 7 m²
▶ Always connect as many collectors as possible in series,
even when several collector rows are arranged on top of
each other.
Note
Up to an aperture surface area of 7 m²
(accordingly for 3 pcs VTK 1140/2 + 1 pc
VTK 570/2), you must switch the collectors in
series.
▶ Ensure that the solar fluid flows through the collectors
either from left to right or from right to left.
Conditions: Number of VTK 1140/2 collectors: 1 … 7
▶ Switch up to 7 VTK 1140/2 units in series (according to
the 14 m² aperture surface area).
Conditions: Parallel connection, aperture surface area: ≥ 14 m²
▶ Set up several parallel collector rows and connect these
hydraulically in parallel.
▶ Always connect as many collectors (at least 7 m²) as
possible in series.
28 Installation manual auroTHERM exclusive 0020077994_03
Page 29
Flat roof fitting and installation 5
A
B
C
Conditions: Parallel connection
▶ To avoid pressure losses in the sub-collector fields, only
use parallel connection for collector rows with the same
number of collectors.
▶ Ensure that each sub-collector field has the same total
tube length in the flow and return (Tichelmann system), in
order to avoid pressure losses in the connection tubes.
5.1.4 Preparing the roof duct
Caution.
Lack of tightness due to destruction of the
roof skin.
In the event of destruction of the roof skin,
water may penetrate the building.
▶ Ensure adequate protection of the roof
skin during installation on roof sealing
surfaces.
▶ Place large-area building protection mats
underneath the installation system.
▶ After installation, check the tightness of
the building shell where there are directly
connected racks.
Installation variants Meaning
A
B
C Rack screwed directly onto the roof.
Floating installation with load plates and
load weights.
Floating installation without load plates.
The rack must be screwed onto suitable
load weights.
▶ Commission a roofer to prepare the roof duct.
5.1.5 Selecting the installation variant
▶ Make a selection from the three available installation
variants:
0020077994_03 auroTHERM exclusive Installation manual 29
Page 30
5 Flat roof fitting and installation
5.1.6 Putting together components
▶ Use the following table to put together the components for installation.
Number of VTK 1140/2 collectors 1 2 3 4 5 6 7
Components Required sets/quantity
VTK installation set (basic set)
VTK installation set (basic set)
Installation set for open-air/flat-roof installation
Required rack
Rail set (2 pcs), VTK 1140/2
1)
1 set each per collector field for connecting to the pipelines; the collectors are connected together using the extension set
Number of VTK 1140/2 collectors 1 2 3 4 5 6
Number of VTK 570/2 collectors 1 1 1 1 1 1
Components Required sets/quantity
VTK installation set (basic set)
VTK installation set (extension set)
Installation set for open-air/flat-roof installation
Required rack
Rail set (2 pcs), VTK 1140/2
Rail set (2 pcs), VTK 570/2
1)
1 set each per collector field for connecting to the pipelines; the collectors are connected together using the extension set
− 1 2 3 4 5 6
2 3 4 5 6 7 8
2 3 4 5 6 7 8
1 2 3 4 5 6 7
1 2 3 4 5 6
3 4 5 6 7 8
3 4 5 6 7 8
1 2 3 4 5 6
1)
1
1)
1
1
5.1.7 Determining the ballast load (floating installation)
Danger!
Risk of death and material damage due to excessive basic wind speeds!
The racks are designed for basic wind speeds of up to 108 km/h. If the basic wind speed at the site is
greater than 108 km/h, then there can be no guarantee claim for the system.
▶ Only install the rack in locations where the basic wind speed is a maximum of 108 km/h.
1. Please note the following for floating installation:
Installation variants Please note
Weights that are firmly screwed onto the
B
A and B All weights must be weatherproof.
2. For detailed determination of the basic wind speed at the site and the required weights for the rack, use the Vaillant tool
for dimensioning the wind and snow loads.
3. For quick determination of the basic wind speed at the site, use the following map.
4. For quick dimensioning of the required weights, use the following tables.
Note
The map and tables are used for quick dimensioning of the ballast loads. Detailed dimensioning of the ballast
loads is only possible using the Vaillant tool for dimensioning the wind and snow loads. If you have any questions on this subject, please contact your responsible Vaillant sales partner.
rack must consist of material capable of
screw connections.
30 Installation manual auroTHERM exclusive 0020077994_03
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Flat roof fitting and installation 5
IS
IE
SE
FI
GB
BE DE
PL
CH
AT
CZ
HU
SK
SI
HR
BA
RS
RO
BG
MK
ME
TR
GR
AL
NL
PT
ES
FR
IT
NO
DK
BY
UA
MD
EE RU
LV
LT
LU
AD
< 72 km/h
< 81 km/h
< 90 km/h
< 99 km/h
< 108 km/h
> 108 km/h
5. Use the map to determine the basic wind speed at the site.
0020077994_03 auroTHERM exclusive Installation manual 31
Page 32
5 Flat roof fitting and installation
L
1
L
2
.............
.............
L
1
L
2
L
1
L1½
L
1
½
L
2
½
L
2
½
L
2
L
1
L
2
6. Use the tables to determine the required weights.
Horizontal collector position
Installation angle 30°
To secure against sliding and
Note
When there are at least two collectors in a row, the ballast loads can be reduced by half for the outer rack.
lifting
Weights/rack [kg]
To secure only against lifting
(if secured/anchored against
sliding)
Basic wind speed [km/h] Position
up to 72 Inland
up to 72 Coast and islands
up to 81 Inland
up to 81 Coast and islands
up to 90 Inland
up to 90 Coast and islands
up to 99 Inland
up to 99 Coast and islands
up to 108 Inland
up to 108 Coast and islands
Building height Building height
up to 10m10-18 m 18-25 m up to 10m10-18 m 18-25 m
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
286
184
392
259
339
221
499
334
445
296
586
395
550
370
727
494
656
444
868
593
359
235
461
307
445
296
588
396
550
370
691
469
656
444
833
568
797
543
974
667
407
269
505
345
515
345
643
435
621
419
762
518
762
518
903
617
903
617
1079
741
30
184
43
259
35
221
58
334
50
296
71
395
66
370
91
494
81
444
112
593
38
235
53
307
50
296
71
396
66
370
86
469
81
444
107
568
101
543
127
667
45
269
59
338
61
345
79
435
76
419
96
518
96
518
117
617
117
617
142
741
32 Installation manual auroTHERM exclusive 0020077994_03
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Flat roof fitting and installation 5
L
1
L
2
L
1
L
2
Horizontal collector position
Installation angle 45°
Basic wind speed [km/h] Position
up to 72 Inland
up to 72 Coast and islands
up to 81 Inland
up to 81 Coast and islands
up to 90 Inland
up to 90 Coast and islands
up to 99 Inland
up to 99 Coast and islands
up to 108 Inland
up to 108 Coast and islands
Weights/rack [kg]
To secure against sliding and
lifting
Note
When there are at least two collectors in a row, the ballast loads can be reduced by half for the outer rack.
Building height Building height
up to 10m10-18 m 18-25 m up to 10m18-25 m 18-25 m
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
299
213
406
301
352
257
515
391
459
345
602
462
566
433
745
579
673
521
888
697
372
274
476
359
495
345
604
464
566
433
709
550
673
521
852
667
816
638
995
785
421
314
521
396
531
404
661
510
638
492
781
609
781
609
923
726
923
726
1102
873
To secure only against lifting
(if secured/anchored against
sliding)
30
191
30
265
30
228
30
341
30
303
30
402
30
377
30
502
30
452
30
601
30
242
30
315
30
303
30
404
30
377
30
477
30
452
30
576
30
551
30
675
30
276
30
346
30
352
30
443
30
427
30
526
30
526
30
626
30
626
30
750
Horizontal collector position
Installation angle 60°
Basic wind speed [km/h] Position
up to 72 Inland
0020077994_03 auroTHERM exclusive Installation manual 33
Weights/rack [kg]
To secure against sliding and
lifting
Note
When there are at least two collectors in a row, the ballast loads can be reduced by half for the outer rack.
Building height Building height
up to 10m10-18 m 18-25 m up to 10m10-18 m 18-25 m
L₁
L₂
268
297
334
377
378
430
To secure only against lifting
(if secured/anchored against
sliding)
30
196
37
247
45
281
Page 34
5 Flat roof fitting and installation
L
1
L
2
L
1
L
2
Horizontal collector position
Installation angle 60°
Basic wind speed [km/h] Position
up to 72 Coast and islands
up to 81 Inland
up to 81 Coast and islands
up to 90 Inland
up to 90 Coast and islands
up to 99 Inland
up to 99 Coast and islands
up to 108 Inland
up to 108 Coast and islands
Weights/rack [kg]
To secure against sliding and
lifting
Note
When there are at least two collectors in a row, the ballast loads can be reduced by half for the outer rack.
Building height Building height
up to 10m10-18 m 18-25 m up to 10m10-18 m 18-25 m
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
365
414
316
355
468
532
413
472
555
628
519
589
696
783
625
705
838
939
430
491
413
472
557
630
519
589
661
744
625
705
802
900
767
861
944
1056
474
539
484
550
613
691
590
667
731
822
731
822
873
978
873
978
1050
1172
To secure only against lifting
(if secured/anchored against
sliding)
43
271
33
233
61
346
52
308
76
407
70
382
100
506
88
456
124
605
54
320
52
308
76
408
70
382
94
481
88
456
118
580
112
556
142
680
62
351
64
357
85
448
82
432
106
531
106
531
130
630
130
630
160
754
Vertical collector position
Installation angle 30°
Basic wind speed [km/h] Position
up to 72 Inland
up to 72 Coast and islands
34 Installation manual auroTHERM exclusive 0020077994_03
Weights/rack [kg]
To secure against sliding and
lifting
Note
When there are at least two collectors in a row, the ballast loads can be reduced by half for the outer rack.
Building height Building height
up to 10m10-18 m 18-25 m up to 10m10-18 m 18-25 m
L₁
L₂
L₁
L₂
301
167
413
234
378
213
487
279
429
244
534
307
To secure only against lifting
(if secured/anchored against
sliding)
44
167
67
234
40
213
81
279
70
244
90
307
Page 35
Flat roof fitting and installation 5
L
1
L
2
L
1
L
2
Vertical collector position
Installation angle 30°
Basic wind speed [km/h] Position
up to 81 Inland
up to 81 Coast and islands
up to 90 Inland
up to 90 Coast and islands
up to 99 Inland
up to 99 Coast and islands
up to 108 Inland
up to 108 Coast and islands
Weights/rack [kg]
To secure against sliding and
lifting
Note
When there are at least two collectors in a row, the ballast loads can be reduced by half for the outer rack.
Building height Building height
up to 10m10-18 m 18-25 m up to 10m10-18 m 18-25 m
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
357
201
527
303
469
268
619
358
581
335
768
448
694
403
918
537
469
268
621
359
581
335
731
425
694
403
881
515
843
492
1030
605
544
313
680
395
656
380
806
470
806
470
955
560
955
560
1143
672
To secure only against lifting
(if secured/anchored against
sliding)
56
201
89
303
78
268
107
358
100
335
137
448
122
403
166
537
78
268
108
359
100
335
129
425
122
403
159
515
152
492
188
605
92
313
119
395
115
380
144
470
144
470
174
560
174
560
211
672
Vertical collector position
Installation angle 45°
Basic wind speed [km/h] Position
up to 72 Inland
up to 72 Coast and islands
up to 81 Inland
Weights/rack [kg]
To secure against sliding and
lifting
Note
When there are at least two collectors in a row, the ballast loads can be reduced by half for the outer rack.
Building height Building height
up to 10m10-18 m 18-25 m up to 10m10-18 m 18-25 m
L₁
L₂
L₁
L₂
L₁
L₂
321
191
437
270
379
230
401
245
513
321
495
309
454
281
562
354
572
361
To secure only against lifting
(if secured/anchored against
sliding)
30
173
30
241
30
207
30
220
30
286
30
275
30
251
30
314
30
320
0020077994_03 auroTHERM exclusive Installation manual 35
Page 36
5 Flat roof fitting and installation
L
1
L
2
L
1
L
2
Vertical collector position
Installation angle 45°
Basic wind speed [km/h] Position
up to 81 Coast and islands
up to 90 Inland
up to 90 Coast and islands
up to 99 Inland
up to 99 Coast and islands
up to 108 Inland
up to 108 Coast and islands
Weights/rack [kg]
To secure against sliding and
lifting
Note
When there are at least two collectors in a row, the ballast loads can be reduced by half for the outer rack.
Building height Building height
up to 10m10-18 m 18-25 m up to 10m10-18 m 18-25 m
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
555
350
495
309
650
414
611
388
804
519
727
466
959
624
652
415
611
388
766
493
727
466
920
598
882
571
1075
703
713
4547
688
440
843
545
843
545
998
650
998
650
1191
781
To secure only against lifting
(if secured/anchored against
sliding)
30
310
30
275
30
365
30
342
30
455
30
410
30
546
30
366
30
342
30
433
30
410
30
523
30
500
30
613
30
402
30
388
30
478
30
478
30
568
30
568
34
681
Vertical collector position
Installation angle 60°
To secure against sliding and
lifting
Note
When there are at least two collectors in a row, the ballast loads can be reduced by half for the outer rack.
Building height Building height
Basic wind speed [km/h] Position
up to 72 Inland
up to 72 Coast and islands
up to 81 Inland
up to 81 Coast and islands
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
up to 10m10-18 m 18-25 m up to 10m10-18 m 18-25 m
297
267
406
372
352
319
516
479
372
339
477
441
460
424
607
566
Weights/rack [kg]
To secure only against lifting
(if secured/anchored against
421
387
522
485
532
494
664
621
30
179
30
246
30
212
35
315
sliding)
30
225
30
291
30
280
45
372
37
256
35
325
37
325
52
407
36 Installation manual auroTHERM exclusive 0020077994_03
Page 37
Flat roof fitting and installation 5
L
1
L
2
B
D
E
A
C
F
C
Vertical collector position
Installation angle 60°
Basic wind speed [km/h] Position
up to 90 Inland
up to 90 Coast and islands
up to 99 Inland
up to 99 Coast and islands
up to 108 Inland
up to 108 Coast and islands
Weights/rack [kg]
To secure against sliding and
lifting
Note
When there are at least two collectors in a row, the ballast loads can be reduced by half for the outer rack.
Building height Building height
up to 10m10-18 m 18-25 m up to 10m10-18 m 18-25 m
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
L₁
L₂
460
424
604
564
568
529
749
704
677
634
893
844
568
529
713
669
677
634
857
809
821
774
1002
949
641
599
785
739
785
739
930
879
930
879
1110
1054
To secure only against lifting
(if secured/anchored against
sliding)
30
280
45
370
41
348
62
461
54
415
80
551
41
348
58
438
54
415
75
528
71
506
92
619
49
393
67
483
67
483
84
573
84
573
105
686
5.1.8 Defining the rack clearances
Conditions: Installed collectors: VTK 1140/2
▶ Define the rack clearances.
Quantity A
1 1088
0020077994_03 auroTHERM exclusive Installation manual 37
2 2466
3 3863
4 5260
5 6657
6 8054
1106 2420 1476 3001 1749 3267 1684
30° 45° 60°
1)
B F
1)
B
1)
F
C D EB F
− −
1233 1397
Page 38
5 Flat roof fitting and installation
B
D
E
G
A
C
F
C
30° 45° 60°
Quantity A
7 9451
1)
Sun elevation of 20° (winter sun)
Conditions: Installed collectors: VTK 570/2 and VTK 1140/2 in combination
1106 2420 1476 3001 1749 3267 1684 1233 1397
▶ Define the rack clearances.
Quantity
VTK
570/2
1)
VTK
1140/2 B F
A
1 1 1776
1 2 3173
1 3 4570
1 4 5967
1106 2420 1476 3001 1749 3267 1684 543 1397 1233
1 5 7364
1 6 8761
Sun elevation of 20° (winter sun)
1)
B F
30° 45° 60°
1)
B F
1)
1)
B
B F
1)
F
1)
C D EB F
C D E G
38 Installation manual auroTHERM exclusive 0020077994_03
Page 39
5.2 Carrying out the installation
60°
45°
30°
1
2
1
2
3
1
5.2.1 Installing racks
Danger!
Risk of death due to falling collectors!
Unsecured collectors may fall from the flat
roof due to the wind and present a danger to
persons.
▶ Perform the following safety precautions
according to the installation type.
▶ For direct connection, screw the rack
properly onto the base.
▶ Only use suitable load weights.
▶ Observe the required ballast load of the
load weights.
1. Determine the required number of racks.
– For the first collector: Two racks
– For each additional collector: One additional rack
Flat roof fitting and installation 5
4. Push the locking button (1) on the telescopic rail.
5. Pull the telescopic rail (2) into the desired installation
angle and allow the locking button to engage again.
2. Fold out the first rack.
3. Select the required installation angle.
– Installation angle:
– 30°
– 45°
– 60°
6. Position the crossbeams (1) such that their fastening
holes lie between the corresponding threaded holes in
the telescopic rail.
7. To secure the rack, insert the fixing screw (2) through
all rails.
8. Secure the fixing screw (2) with the self-locking nuts (3).
9. Tighten the nuts.
Conditions: Type of installation: Direct mounting
Screwing on the rack
Caution.
Lack of tightness due to destruction of
the roof skin.
In the event of destruction of the roof skin,
water can penetrate the building.
▶ Check the tightness of the roof skin after
tightening screw connections.
0020077994_03 auroTHERM exclusive Installation manual 39
Page 40
5 Flat roof fitting and installation
2
3
1
▶ Restore the tightness of the roof skin if
necessary.
▶ Define the required rack clearances as described in the
chapter "Defining rack clearances".
▶ Drill the required holes at the defined positions.
▶ Secure the rack with fastenings appropriate to the base
(diameter: at least 10 mm).
▶ Mount as many racks as you need to hold the collectors.
Conditions: Type of installation: Floating installation (with load plates)
Preparing load plates
Caution.
Lack of tightness due to destruction of
the roof skin.
In the event of destruction of the roof skin,
water may penetrate the building.
▶ Ensure adequate protection of the roof
skin during installation on roof sealing
surfaces.
▶ Place large-area, non-slip building pro-
tection mats underneath the installation
system.
Note
For each rack, you will need four load plates:
one pair each for the front and rear rack feet.
▶ Align the load plates approximately in their final position
on the flat roof.
▶ Insert the first hammer-head bolt centrally in the groove
between the first two load plates.
▶ To secure the hammer-head bolt, turn it by 90° in a
clockwise direction.
▶ Secure the second hammer-head bolt in the same way
between the other two load plates.
▶ If the roof is covered with gravel, remove the gravel at
the places where you wish to position the load plates,
and use non-slip building protection mats to protect the
roof skin.
▶ Connect two load plates as shown in the illustration.
▶ Connect two additional load plates as shown in the illus-
tration.
40 Installation manual auroTHERM exclusive 0020077994_03
Screwing the rack onto load plates and aligning
▶ If you install the VTK 570/2 collectors, turn the load
plates by 90° so that the load plates do not overlap.
▶ Take hold of the first rack that is already secured in the
installation angle.
▶ Position the front rack feet above the hammer-head bolt
(1).
▶ When positioning the rack feet, ensure that the anti-
rotation lock (2) engages.
▶ Secure the rack feet with the self-locking nut (3).
▶ Secure the rear rack feet in the same way on the other
two load plates.
◁ The first rack is installed so that it is stable.
Page 41
Flat roof fitting and installation 5
Danger!
Risk of death due to inadequate fastening
of the load weights onto the load plates!
If the load weights are inadequately secured
on the load plates, collectors could fall from
the roof and cause life-threatening accidents.
▶ Secure all load weights on the load plates
adequately against slipping and tilting.
▶ Distribute the load weights evenly over the load plates.
▶ Install the second rack on the load plates as described
above.
▶ Mount as many racks and load plates as you need to
hold the collectors.
Note
For one collector, you will need two racks.
For each additional adjacent collector, you will
need an additional rack.
▶ Align all racks with the load plates in their final position
on the flat roof.
▶ The rack clearances can be found in the chapter "Defin-
ing rack clearances".
Conditions: Type of installation: Floating installation (without load plates)
Preparing weights
Caution.
Lack of tightness due to destruction of
the roof skin.
In the event of destruction of the roof skin,
water may penetrate the building.
▶ Ensure adequate protection of the roof
skin during installation on roof sealing
surfaces.
▶ Place large-area, non-slip building pro-
tection mats underneath the installation
system.
▶ If the roof is covered with gravel, remove the gravel at
the places where you wish to position the weights, and
use non-slip building protection mats to protect the roof
skin.
Placing load weights on load plates
▶ Transport the required number of loading weights to the
flat roof.
▶ Place the load weights on the load plates as shown
above.
▶ Ensure that the distance between the loading weights
and the racks is as small as possible.
0020077994_03 auroTHERM exclusive Installation manual 41
▶ Define the required rack clearances as described in the
chapter "Defining rack clearances".
Note
For each rack, you need two equal weights.
For the first collector, you therefore need four
weights. For each additional collector, you will
need an additional rack.
▶ Transport the required number of weights to the flat roof.
▶ Lay the weights in the final positions of the installation
site.
Page 42
5 Flat roof fitting and installation
1
2
3
AB
50 - 200
1
2
Note
The four weights for holding two racks for
a collector are very heavy. Therefore, it is
advisable to determine the final position and
orientation of the weights before screwing on
the rack and laying the weights there.
▶ Select a suitable fastening material for the weights used
(diameter: at least 10 mm).
▶ Drill a hole into the centre of each weight.
Screwing the rack onto weights
▶ Take hold of the first rack that is already secured in the
installation angle.
▶ Screw the front rack feet onto the first weight.
▶ Screw the rear rack feet onto the second weight.
◁ The first rack is installed so that it is stable.
1. Install the collectors on the roof as specified in the following sections.
Sliding on mounting rails
2. Slide the two mounting rails (top and bottom) onto the
brackets, as shown in the image.
3. Ensure that the open side of the bottom mounting rail is
facing upwards and that the open side of the top mounting rail is facing downwards.
4. First slide the mounting rail onto one bracket (1).
5. Slide the mounting rail a little outwards (2).
6. Then slide the mounting rail back to the other bracket
(3).
7. Perform these steps one after the other for all racks.
Fitting mounting rails to several racks
▶ Install the second rack on the next two weights as de-
scribed above.
▶ Fit as many racks as you need to hold the collectors.
5.2.2 Installing collectors
Danger!
Personal injury and material damage due
to a falling collector.
42 Installation manual auroTHERM exclusive 0020077994_03
Improper fastening may cause a collector to
fall.
▶ Tighten the clamping elements.
▶ Check for proper tensioning by shaking
the clamping blocks.
▶ If a clamping block is mobile, tighten the
nut again.
8. When installing several collectors next to each other, allow the mounting rails to end in the centre of the brackets (A).
9. Allow the mounting rails on the first and last rack to
protrude 50-200 mm over the edge (B).
Page 43
Flat roof fitting and installation 5
1
1
1
2
Connecting mounting rails
10. Clamp the rail connector (1) into the mounting rails.
11. Ensure that the rail connector (1) engages in the holes
of the mounting rails.
Note
After installation, the rail connectors are no
longer accessible.
Securing the mounting rails at the bottom
▶ Avoid working in direct sunlight.
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in
the morning.
▶ Wear suitable safety gloves.
13. Place the collector so that its lower edge is in the profile
of the mounting rail (1) (upper collector). Ensure that
the mounting rail (1) surrounds the lower edge of the
collector.
Securing the collector at the top
14. Slide the left side of the top mounting rail (1) until it is
flush with the collector.
15. Ensure that the mounting rail (1) surrounds the top
edge of the collector.
16. Screw the bracket securely on the top left (2).
– Working materials: 5 mm Allen key
17. Ensure that the mounting rail does not slip while you
are tightening the screw.
Removing the carrying strap
12. Screw the brackets tightly onto the lower mounting
rails.
– Working materials: 5 mm Allen key
Hooking the collector in at the bottom
18. Remove the carrying strap.
Danger!
Risk of burns and scalding!
In the event of solar radiation inside the units,
collectors can reach 300 °C.
0020077994_03 auroTHERM exclusive Installation manual 43
Page 44
5 Flat roof fitting and installation
1
21
BA
Loosening the sun protection film
19. To ensure that the sun protection film can be easily removed after starting up the unit, loosen the sun protection film from the edges of the collector (1).
Installing additional collectors
20. Position the next collector on the lower mounting rail so
that there is a clearance of approx. 10 cm from the first
collector.
Fitting connectors
Tightening the clamping ring connection
Caution.
Risk of damage to the collectors as a res-
ult of improper installation.
If the hydraulic connections are not installed
properly, the stainless steel tubes inside the
collector may become damaged.
▶ When tightening the clamping ring con-
nection, hold a second spanner against it.
23. Screw the two cap nuts securely onto the double
nipple.
Completing the installation of the collector
24. Slide the second top mounting rail until it is flush with
the collector.
25. Screw the second top mounting rail tightly onto the
mounting rail of the first collector using the corresponding bracket.
– Working materials: 5 mm Allen key
26. Remove the carrying strap. (→ Page 43)
27. Loosen the sun protection film from the edges of the
collector. (→ Page 44)
Completing collector rows
Conditions: Not all collectors in a row have been installed yet.
21. Screw the double nipple (A) (from installation set VTK
extension set, article number 0020076779) in the
thread of the second collector (B) with the cap nut of
the first collector ((1) and (2)).
22. Push the collectors together.
44 Installation manual auroTHERM exclusive 0020077994_03
▶ Install an additional collector. (→ Page 44)
▶ Fit the connectors. (→ Page 44)
▶ Tighten the clamping ring connection. (→ Page 44)
Page 45
Flat roof fitting and installation 5
13
2
5.2.3 Installing hydraulic connections
Caution.
Lack of tightness due to incorrect ac-
cessories.
Incorrect accessories may result in lack of
tightness of the solar circuit and cause material damage.
▶ Only work in the solar circuit with hard
soldered connections, flat seals, compression fittings or press fittings which have
been approved by the manufacturer for
use in solar circuits and at correspondingly high temperatures.
Insulating hydraulic connections
Conditions: Start-up carried out
▶ Insulate the hydraulic connections using the insulation
(1) (from installation set VTK extension set, article number 0020076779).
▶ Cover the insulation with the cover plate (3) (from
installation set VTK extension set, article number
0020076779).
▶ Insulate the hydraulic system connections using the in-
sulation (2) (from installation set VTK extension set, article number 0020076779).
Caution.
Risk of damage to the collectors as a res-
ult of improper installation.
If the hydraulic connections are not installed
properly, the stainless steel tubes inside the
collector may become damaged.
▶ When tightening the clamping ring con-
nection, hold a second spanner against it.
1. Connect the collector flow and return to the system with
the connection tubes.
2. To do this, connect the clamping ring connection (from
the installation set VTK basic set, article number
0020076776) to the collector.
3. Connect the clamping ring connection with the connection pipework.
4. Check the connections for tightness.
Conditions: System with collector sensor
▶ Insert the collector sensor into the opening provided on
the collector flow side ("hot side").
Note
In general, the collector sensor can be attached to the right or left side of the collector
field because the collectors on both sides
have a corresponding opening.
0020077994_03 auroTHERM exclusive Installation manual 45
Page 46
5 Flat roof fitting and installation
5.3 Completing and checking the installation
5.3.1 Checking installation
Use the following checklist to ensure that all work steps have been performed.
Operations Yes No Comments
Building statics taken into account during installation of the
system
Clearances from the roof edge complied with in accordance with the specifications
Rack positioned in accordance with the dimensions specifications
All bolts securely tightened
(Installation and telescopic rail)
Adequate ballast weights used
(Only for floating installation)
Load weights adequately secured against slipping and
tilting
(Only for floating installation)
Rack anchored and bolts tightened
(Only for direct connection)
All hydraulic connections tightened
Hydraulic connections routed correctly
VR 11 collector sensor connected
(Only for systems WITH a collector sensor)
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
Collectors connected to lightning protection device
(Optionally for lightning protection device)
Pressure testing performed
(Ideally with compressed air)
All connections tight
Date Signature
All installation work has been
performed correctly. ˍ ˍ . ˍ ˍ . ˍ ˍ ˍ ˍ
☐ ☐
☐ ☐
☐ ☐
46 Installation manual auroTHERM exclusive 0020077994_03
Page 47
Inspection and maintenance 6
5.3.2 Disposing of the packaging
The transport packaging consists largely of recyclable materials.
▶ Observe the applicable regulations.
▶ Dispose of the transport packaging properly.
6 Inspection and maintenance
6.1 Maintenance plan
The following table shows the inspection and maintenance
work that must be carried out at specific intervals.
6.1.1 Calendar-based maintenance intervals
Calendar-based maintenance intervals
Interval Maintenance work Page
Annually Checking collectors and connections
for damage, dirt and lack of tightness 47
Cleaning collectors
Checking brackets and collector components for firm seating 48
Check the pipe insulations for damage
Replacing damaged pipe insulations
Disposing of damaged pipe insulations
48
48
48
48
6.2 Observing inspection and maintenance
intervals
Regular inspection/maintenance of the entire solar plant by a
competent person is a prerequisite for ensuring that the system is constantly ready for operation, reliable and has a long
service life. Vaillant recommends that you sign a maintenance contract.
Danger!
Risk of death, injury and material damage
due to failure to perform maintenance and
repairs work!
Failure to perform maintenance or repair
work, or failure to comply with the specified
maintenance intervals, may impair the operating safety of the unit and cause material
damage and personal injury.
▶ Instruct the operator to observe the spe-
cified maintenance intervals strictly.
▶ Perform maintenance work on the collect-
ors in accordance with the maintenance
plan.
6.3 General inspection and maintenance
instructions
Danger!
Risk of death, injury and material damage
due to improper maintenance and repairs!
Improper maintenance work or repairs can
impair the operating safety of the unit and
result in material damage and personal injury.
▶ Only perform maintenance work and re-
pairs on the collectors if you are a qualified competent person.
6.4 Preparing for inspection and maintenance
6.4.1 Spare parts for maintenance
If you require spare parts for servicing or repair work, use
only Vaillant genuine spare parts.
The original components of the unit were also certified as
part of the CE declaration of conformity. If you do not use
certified Vaillant genuine spare parts, this voids the CE conformity of the unit. We therefore strongly recommend that
you fit Vaillant genuine spare parts.
Applies to: Great Britain
An overview of the available genuine Vaillant spare parts can
be obtained:
– From your parts wholesaler
– Alternatively contact Spares Technical Enquiries
on 01773 596615 or via email: technicalspares@groupservice.co.uk
6.4.2 Preparing for maintenance
▶ Put together all the tools and materials required for the
maintenance work.
6.5 Checking collectors and connections for
damage, dirt and lack of tightness
1. Check the collectors for damage.
If the collectors are damaged:
▶ Replace the collectors.
2. Check the collectors for dirt.
If the collectors are dirty:
▶ Clean the collectors. (→ Page 48)
3. Check the connections for lack of tightness.
If the connections are not tight:
▶ Seal the leaking connections. (→ Page 49)
0020077994_03 auroTHERM exclusive Installation manual 47
Page 48
7 Troubleshooting
6.6 Cleaning collectors
Danger!
Risk of burns and scalding!
In the event of solar radiation inside the units,
collectors can reach 200 °C.
▶ Avoid working in direct sunlight.
▶ You should preferably perform the work in
the morning.
▶ Wear suitable safety gloves.
▶ Wear suitable protective goggles.
Caution.
Material damage due to 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.
Caution.
Material damage due to cleaning agent.
Cleaning agents may damage the surface
structure of the collector and decrease its
efficiency.
▶ Never clean the collector with cleaning
agents.
▶ Clean the collectors with a sponge and water.
6.7 Checking brackets and collector
components for firm seating
▶ Check the firm seating of all threaded connections.
If threaded connections are loose:
▶ Tighten the threaded connections.
6.9 Replacing damaged pipe insulations
1. Put the solar plant temporarily out of operation
(→ Page 49).
2. Replace the damaged pipe insulations.
3. Start the solar plant up again.
6.10 Disposing of damaged pipe insulations
The pipe insulations consist largely of recyclable materials.
The pipe insulations must not be disposed of with normal
household waste.
▶ Observe the applicable regulations.
▶ Dispose of the damaged pipe insulations properly.
7 Troubleshooting
7.1 Spare parts for repair
If you require spare parts for servicing or repair work, use
only Vaillant genuine spare parts.
The original components of the unit were also certified as
part of the CE declaration of conformity. If you do not use
certified Vaillant genuine spare parts, this voids the CE conformity of the unit. We therefore strongly recommend that
you fit Vaillant genuine spare parts.
Applies to: Great Britain
An overview of the available genuine Vaillant spare parts can
be obtained:
– From your parts wholesaler
– Alternatively contact Spares Technical Enquiries
on 01773 596615 or via email: technicalspares@groupservice.co.uk
7.2 Carrying out repairs
7.2.1 Replace leaking collectors
6.8 Check the pipe insulations for damage
▶ Check the pipe insulations for damage.
If the pipe insulations are damaged:
▶ To avoid heat losses, replace any damaged pipe in-
sulations. (→ Page 48)
48 Installation manual auroTHERM exclusive 0020077994_03
Danger!
Risk of burns and scalding!
In the event of solar radiation inside the units,
collectors can reach 300 °C.
▶ Avoid working in direct sunlight.
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in
the morning.
▶ Wear suitable safety gloves.
1. Put the solar plant temporarily out of operation
(→ Page 49).
2. Replace the leaking collectors.
3. Start up the solar plant again as described in the operating system instructions.
Page 49
Decommissioning 8
7.2.2 Disposing of defective collectors
Your Vaillant collector consists largely of recyclable materials.
The Vaillant collector must not be disposed of with normal
household waste.
▶ Observe the applicable regulations.
▶ Dispose of defective Vaillant collectors properly.
7.2.3 Sealing leaking connections
Danger!
Risk of burns and scalding!
In the event of solar radiation inside the units,
collectors can reach 300 °C.
▶ Avoid working in direct sunlight.
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in
the morning.
▶ Wear suitable safety gloves.
1. Put the solar plant temporarily out of operation
(→ Page 49).
2. Seal the leaking connections.
3. Start up the solar plant again as described in the operating system instructions.
7.2.4 Replacing defective pipe insulations
1. Put the solar plant temporarily out of operation
(→ Page 49).
2. To avoid heat losses, replace any defective pipe insulations.
3. Start up the solar plant again as described in the operating system instructions.
7.2.5 Disposing of defective pipe insulations
The pipe insulations consist largely of recyclable materials.
The pipe insulations must not be disposed of with normal
household waste.
▶ Observe the applicable regulations.
▶ Dispose of the defective pipe insulations properly.
7.2.6 Replacing defective tubes
Danger!
Risk of injury caused by damaged vacuum
tubes and sharp-edged components.
Shards and sharp-edged components may
lead to cuts.
▶ Wear suitable safety gloves.
Danger!
Risk of burns from hot components!
The U tube, heat conducting plate and the
interior of the vacuum tubes become warm
as a result of solar radiation and may cause
scalding.
▶ Wear suitable safety gloves.
▶ Wear suitable protective goggles.
1. Only use genuine Vaillant replacement tubes (article
number 0020077347).
Note
If a tube has been damaged by a hailstorm,
for example, the individual tube can be replaced.
The solar plant can remain in operation when
replacing the tube.
2. Observe the relevant installation manual that is enclosed with the replacement tube.
7.2.7 Disposing of defective tubes
The Vaillant tubes consist largely of recyclable materials.
The Vaillant tubes must not be disposed of with normal
household waste.
▶ Observe the applicable regulations.
▶ Dispose of defective Vaillant tubes properly.
8 Decommissioning
8.1 Temporary decommissioning
Caution.
Damage to the collectors.
Collectors that are not in operation may age
more rapidly due to long periods of high idle
temperatures.
▶ Only put the solar plant out of operation if
you are a competent person.
▶ Do not decommission the collectors for
more than four weeks.
▶ Cover any collectors that are not in use.
Make sure that the cover is securely
fastened.
▶ In the event of long periods of decommis-
sioning of the solar plant, dismantle the
collectors.
Caution.
Oxidation of the solar fluid.
If the solar circuit is opened when out of service for a prolonged period of time, the solar
fluid may age more rapidly due to the penetrating oxygen in the air.
0020077994_03 auroTHERM exclusive Installation manual 49
Page 50
9 Customer service
▶ Only decommission the solar plant if you
are a competent person.
▶ Do not decommission the collectors for
more than four weeks.
▶ Before decommissioning the system for a
prolonged period of time, drain the entire
solar plant and dispose of the solar fluid
properly.
▶ In the event of long periods of decommis-
sioning of the solar plant, dismantle the
collectors.
For repair or maintenance work, you can temporarily decommission the solar plant. To do this, you must switch off the
solar pump.
▶ Temporarily decommission the solar plant, as described
in the operating system instructions.
8.2 Permanently decommissioning
8.2.1 Removing collectors
Danger!
Risk of burns and scalding!
In the event of solar radiation inside the units,
collectors can reach 300 °C.
▶ Avoid working in direct sunlight.
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in
the morning.
▶ Wear suitable safety gloves.
Danger!
Risk of burns from hot components!
The U tube, heat conducting plate and the
interior of the vacuum tubes become warm
as a result of solar radiation and may cause
scalding.
▶ Wear suitable safety gloves.
▶ Wear suitable protective goggles.
▶ During transport from the roof, seal the
pipe connections of the collector with the
red plugs.
1. Undo the hydraulic connections.
2. Undo the clamping elements.
3. Remove the collectors from the roof.
Note
Do not use the carrying straps when removing the collectors as these may become
brittle due to prolonged exposure to outside
weather.
4. Remove the sealing plugs.
5. Drain the collector fully into a canister through two connections.
6. Fit the sealing plugs again.
7. Use adequate packing around the collectors.
8. Dispose of the collectors and the solar fluid.
8.2.2 Recycling and disposal
Your Vaillant collector consists largely of recyclable materials.
▶ Observe the applicable regulations.
Disposing of collectors
You must not dispose of your Vaillant collector or any of its
accessories in normal domestic waste.
▶ Dispose of the old unit and any accessories properly.
Disposing of solar fluid
The solar fluid must not be disposed of with normal household waste.
▶ Dispose of the solar fluid in compliance with local regula-
tions through an appropriate disposal company.
▶ Dispose of packaging that cannot be cleaned in the same
way as solar fluid.
Uncontaminated packaging can be reused.
Caution.
Damage to the collector and the solar
plant.
Improper removal may cause damage to the
collector and to the solar plant.
▶ Before removing the collectors, ensure
that a competent person or a Vaillant customer service engineer decommissions
the solar plant.
Caution.
Environmental hazard due to solar fluid.
After the solar plant is decommissioned, the
collector is still filled with solar fluid which can
leak out during removal.
50 Installation manual auroTHERM exclusive 0020077994_03
9 Customer service
Applies to: Great Britain
To ensure regular servicing, it is strongly recommended that
arrangements are made for a Maintenance Agreement.
Please contact Vaillant Service Solutions for further details:
+44 80 70 606 07 77
Page 51
Technical data 10
10 Technical data
10.1 Technical data table
Unit VTK 570/2 VTK 1140/2
Number of tubes − 6 12
η0(Aperture), DIN4757-4 or EN12975 % 64.2
c1with wind, or on aperture W/(m²k) 0.885
c2with wind, or on aperture W/(m²k²) 0.001
K
(50°), or on aperture − 1
θ,trans
K
(50°), or on aperture − 0.9
θ,long
Yield forecast (location: Würzburg, 5 m² aperture,
300 litre cylinder, 4 people)
Peak output per collector module W
peak
Area-related heat capacity c kJ/(m²k) 8.3
Volume flow (per m² of collector surface) l/(m²h) 24
Minimum volume flow in the solar circuit l/h 180
Absolute pressure in the high vacuum bar
Alpha absorber absorption − > 93.5% (see also ITW test report)
Epsilon absorber emission − < 6% (see also ITW test report)
Grid dimensions (length x height x depth) m 0.7 x 1.65 x 0.11 1.39 x 1.65 x 0.11
Gross area m² 1.16 2.30
Aperture surface area m² 1.0 2.0
Absorber surface area m² 1.0 2.0
Collector capacity l 0.9 1.8
Weight kg 19 37
System overpressure, max. permissible bar 10
Shutdown temperature, max. °C 272
Connection width, flow/return mm 15
Material for the tube collector − Al/1.4301/glass/silicone/PBT/EPDM/TE
Material for glass tubes − Borosilicate 3.3
Material for selective absorber layer − Aluminium nitride
Glass tubes (outer diameter/inner diameter/wall
thickness/tube length)
Colour (plastic parts) − Black
Thermal shock test ITW test
Hail impact test in accordance with DIN EN 12975-2 TÜV test
Type approval number − 01-228-770
Max. wind load
Max. standard snow load
On-roof installation angle ° 15-75
Flat roof installation angle ° 30, 45, 60
kWh/m²a 586
W 642 1278
10-5mbar (= 10-8bar)
− 47 / 37 / 1.6 / 1500
02COL282
number
435/142448
number
kg/Nm
kg/Nm
2
2
1.2
5
0020077994_03 auroTHERM exclusive Installation manual 51
Page 52
10 Technical data
1652
111
702
10.2 Dimensions
52 Installation manual auroTHERM exclusive 0020077994_03
Page 53
Technical data 10
1652
111
1392
0
0%
10%
20%
30%
40%
50%
60%
70%
80%
5101520253035404550556065707580
ΔT
η
10.3 Efficiency and pressure loss
Efficiency of the VTK 570/2 and the VTK 1140/2 at a solar energy input EG of 300 W/m
η Efficiency [%] ΔΤ Τ
0020077994_03 auroTHERM exclusive Installation manual 53
collector−ambient air
2
Τ [K]
Page 54
10 Technical data
0
0%
10%
20%
30%
40%
50%
60%
70%
80%
5101520253035404550556065707580
ΔT
η
160
140
120
100
90
60
40
20
0
Q [l/h]
Δp [mbar]
0 50 100 150 200 250 300 350 400 450 500
VTK 1140/2
VTK 570/2
Efficiency of the VTK 570/2 and the VTK1140/2 at a solar energy input EG of 800 W/m
η Efficiency [%] ΔΤ Τ
collector−ambient air
Τ [K]
Pressure loss
2
Q Mass flow [l/h] Δp Pressure loss [mbar]
54 Installation manual auroTHERM exclusive 0020077994_03
Page 55
Index
Index
A
Applicability
Manual.............................................................................4
Article numbers .....................................................................4
B
Ballast load (floating installation)
Determining ...................................................................30
Brackets
Checking........................................................................ 48
C
CE label................................................................................. 7
Checklist
Installing...................................................................25, 46
Clearances
Complying with ........................................................10, 28
Collector components
Checking........................................................................ 48
Collectors
Checking........................................................................ 47
Cleaning.........................................................................48
Disposal.........................................................................49
Installing...................................................................21, 42
Removing.......................................................................50
Replacing....................................................................... 48
Storing .......................................................................8, 26
Transporting.............................................................10, 28
Components
Putting together .......................................................12, 30
Connection
Selecting..................................................................10, 28
Connection rules ...........................................................10, 28
Connection schemas..................................................... 10, 28
Connections
Checking........................................................................ 47
Sealing........................................................................... 49
Customer service ................................................................50
D
Decommissioning................................................................49
Disposal
Collectors....................................................................... 50
Packaging................................................................26, 47
Solar fluid....................................................................... 50
Documents, other applicable................................................. 4
F
Final work
Installing...................................................................25, 46
H
Hydraulic connections
Installing...................................................................23, 45
I
Identification plate .................................................................8
Installation clearances
Complying with ........................................................10, 28
Installing
Checking.................................................................. 25, 46
Intended use..........................................................................6
L
Leaking connections
Sealing........................................................................... 49
M
Maintenance
Preparing ....................................................................... 47
Maintenance plan................................................................47
P
Packaging
Disposal...................................................................26, 47
Pipe insulations
Checking........................................................................ 48
Disposal................................................................... 48–49
Replacing................................................................. 48–49
Purpose
Unit ..................................................................................8
R
Rack
Defining clearances ....................................................... 37
Installing.........................................................................39
Recycling
Collectors....................................................................... 50
Packaging................................................................26, 47
Solar fluid....................................................................... 50
Roof bracket
Defining edge clearances..............................................15
Determining the number................................................15
Roof duct
Preparing ................................................................. 11, 29
S
Scope of delivery
Checking.................................................................... 9, 27
Select installation variant, flat roof.......................................29
Spare parts
Maintenance .................................................................. 47
Troubleshooting.............................................................48
T
Technical data................................................................... 51
Dimensions....................................................................52
Efficiency .......................................................................53
Pressure loss.................................................................53
Tubes
Disposal.........................................................................49
Replacing....................................................................... 49
Type overview ....................................................................... 8
U
Unit
Purpose ...........................................................................8
Use, intended ........................................................................ 6
0020077994_03 auroTHERM exclusive Installation manual 55
Page 56
0020077994_03
Vaillant Ltd
Nottingham Road Belper Derbyshire DE56 1JT
Telephone +44 845 602 29 22 Please contact Vaillant Service Solutions for further details +44 80 70 606 07
77
info@vaillant.co.uk www.vaillant.co.uk
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