Page 1
For the expert technician
Installation manual
auroTHERM
On-roof/flat roof installation
VTK 570/2
VTK 1140/2
GB
Page 2
2
Contents
Contents
1 Notes on the documentation ......................... 3
1.1 Other applicable documents ................................3
1.2 Storage of the documents ....................................3
1.3 Symbols used ...........................................................3
1.4 Applicability of the manual ...................................3
2 Intended use .................................................... 3
2.1 Combination with other components ................3
2.2 Operational conditions ..........................................3
3 Safety instructions ........................................ 4
3.1 Technical Guidance .................................................4
3.2 Related documents .................................................4
3.3 Regulations for the prevention of accidents ...4
3.4 Lightning protection ...............................................5
3.5 Frost protection.......................................................5
4 Before installation ..........................................5
4.1 Safety instructions3 ...............................................5
4.2 Scope of delivery ....................................................6
4.2.1 On-roof mounting ...................................................6
4.2.2 Flat-roof mounting ..................................................7
4.3 Assembling the collector array ...........................8
4.3.1 On-roof mounting ...................................................8
4.3.1.1 Collector arrangement, 1-row ..............................8
4.3.1.2 Collector arrangement, 2-row ........................... 10
4.3.1.3 Collector arrangement, 3-row .............................11
4.3.2 Flat-roof mounting .................................................13
4.4 Interconnection scheme ...................................... 14
4.5 Preparing the hydraulic connection ................. 16
4.5.1 On-roof mounting ................................................. 16
4.5.2 Flat-roof mounting ................................................ 16
4.6 Required tools ........................................................ 16
5 On-roof mounting ...........................................16
5.1 Fitting the brackets ...............................................17
5.2.1 Bracket Type P (pantile) ..................................... 19
Fixing to the roof batten ................................................ 20
5.2.2 Bracket Type S (for high profile pantiles) .......21
5.2.3 Bracket Type S (Low profile for slate/ flat tiles)
21
5.2.3 Hanger bolt fixing kit ...........................................22
5.3 Fitting the collectors ............................................23
6 Flat-roof mounting ...................................... 28
6.2 Weighting and arrangement of the frames ... 28
6.3 Fitting the collectors ............................................32
7 Final operations ............................................37
8 Recycling and disposal ................................ 38
9 Vaillant Customer Service and warranty . 38
9.1 Vaillant warranty.................................................. 38
9.2 Vaillant service ..................................................... 38
10 Technical data ...............................................39
Page 3
1 Notes on the documentation
The instructions below are intended to help you
throughout the entire documentation.
1.1 Other applicable documents
When assembling the tube collectors, pay attention to
all the installation instructions for the components and
assemblies within the solar installation. These instructions are included with the individual components of the
system and the additional components.We accept no li-
ability for any damage caused by failure to observe
these instructions.
1.2 Storage of the documents
Please pass on this installation manual and all other applicable documents and auxiliary equipment to the plant
operator, whose responsibility it is to ensure the manuals and auxiliary equipment are available whenever required.
1.3 Symbols used
Please observe the safety instructions in this installation
manual for the installation of the collector!
d
Danger!
Immediate risk of serious injury or death!
e
Danger!
Risk of death from electric shock!
H
Danger!
Danger of burning and scalding!
a
Caution!
Potentially dangerous situations for the product and the environment!
h
Note
Useful information and instructions.
• Symbol indicating the required action
1.4 Applicability of the manual
This installation manual applies exclusively to tube collectors with the following part numbers:
Collector type Part number
VTK 570/2 0010002227
VTK 1140/2 0010002228
Table 1.1 Collector types and article numbers
Please see the identification plate on the upper edge of
the collector for the part number of the tube collector.
2 Intended use
Vaillant auroTHERM tube collectors are built according
to the state of the art and recognised safety rules and
regulations.
Nevertheless, improper use may cause danger to life
and limb of the user or third parties and could impair
the operation of the unit and other objects.
The unit is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities, or lack of experience and/or knowledge,
unless they have been given supervision or instruction
concerning use of the unit by a person responsible for
their safety.
Children must be watched to ensure that they do not
play with the unit.
Vaillant auroTHERM tube collectors are used for solar
assisted hot water generation and where specially designed can provide additional heating such as pool heating.
The collectors may only be operated with Vaillant readymixed solar fluid. Passing heating water or hot water directly through the collectors is not permitted.
Any other use or use exceeding the above-mentioned
applications shall be considered as improper use. The
manufacturer/supplier shall not be responsible for any
damages resulting from such improper use. The user
alone bears the risk.
Intended use includes observance of the operating and
installation manuals and all other applicable documents,
as well as adherence to the maintenance and inspection
conditions.
a
Caution!
Any improper use is forbidden!
2.1 Combination with other components
Vaillant tube collectors should be combined only with
Vaillant components (fixing, connections) and system
components.
The use of other components or system components
shall be considered as improper use. We accept no liability.
2.2 Operational conditions
a
Caution!
The roof may collapse!
Mount the tube collectors only on roofs with an
adequate load-bearing capacity.
If necessary, call a technician.
3Installation manual auroTHERM 0020077994_00
Notes on the documentation 1
Intended use 2
GB
Page 4
On-roof mounting:
The tube collectors can be mounted at an angle of
15° – 75°.
An installation angle of less than 15° is not permissible.
Flat roof installation:
The tube collectors can be installed on flat roof frames
in the as-delivered condition with an angle of 30°, 45°
or 60°.
An installation angle of less than 15° is not permissible.
3 Safety instructions
The following safety instructions, technical rules and accident prevention regulations must be observed when
installing the flat collectors.
d
Danger!
Risk of death from falls and falling objects!
Observe the national regulations for working at
heights.
H
Danger!
Danger of burning and scalding!
In case of solar irradiation inside the units, collectors can reach 300 °C. Remove the sun protection film installed at the factory only after
the solar energy system has been started up.
H
Danger!
Danger of burning and scalding!
In case of solar irradiation inside the units, collectors can reach 300 °C.
Do not perform maintenance work under direct
sunlight.
a
Caution!
Collector damage!
A qualified engineer is required to install tube
collectors in accordance with this installation
manual.
The installation should thus be performed only
if a qualified engineer is available.
3.1 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.
3.2 Related documents
Designers and installers should refer to current information and standards. A useful reference would be the energy saving trust document CE 131 (this is downloadable
from their web site at www.est.org.uk/housingbuildings)
which lists relevant standards and other documents that
you might refer to. This includes but is not limited to the
following;
Solar Standards
BS 7431, BS 6785: 1986, BS EN 12975 / 6 (Pt1-2), prEN
12977 (1-2-3) BS EN ISO 9488
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 dia-
phragm 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.
3.3 Regulations for the prevention of accidents
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
Installation manual auroTHERM 0020077994_004
2 Intended use
3 Safety instructions
Page 5
associated with the work. All scaffolding in the UK, other
than prefabricated (zip-up) 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.
3.4 Lightning protection
a
Caution!
Damage from lightning!
If the installation height is more than 20 m or
if the collectors are projected above the roof
ridge, electro-conductive components must be
connected to a lightning protection device!
3.5 Frost protection
a
Caution!
Damage due to frost!
Never fill or flush the collector with water. Only
fill and flush the collector with Vaillant readymixed solar fluid.
Check the solar fluid regularly with an antifreeze tester.
4 Before installation
4.1 Safety instructions3
Please note the following instructions before and during
installation:
d
Danger!
Risk of death from falls and falling objects!
Observe the national regulations for working at
heights.
Wear the Vaillant safety belt (article number
302066).
H
Danger!
Danger of burning and scalding!
In case of solar irradiation inside the units, collectors can reach 300 °C. Remove the sun protection film installed at the factory only after
the solar energy system has been started up.
a
Caution!
Collectors may be damaged by incorrect storage!
Always store the collectors in a dry place and
protected from the elements.
Caution!
System error function due to air bubbles!
To fill the system, use the fill trolley (article
number 0020042548) to avoid air bubbles.
Use the manual air vent installed on the collector field.
Alternatively, install the Vaillant Solar automatic air vent (article number 302019) in the
highest point of the system or the automatic
de-aerator (article number 302418) in the solar
circuit.
Observe the relevant installation and operating
manual.
5Installation manual auroTHERM 0020077994_00
Safety instructions 3
Before installation 4
GB
Page 6
4.2 Scope of delivery
• Check the mounting kit for completeness based on the
illustrations and bills of materials.
4.2.1 On-roof mounting
1
3
2
4
8
9
10
5
7
6
12
11
Fig. 4.1 On-roof mounting kit
Pos. Description Quantity Article number (kit)
1 Rail kit VTK 1140/2 2 0020076781
2 Rail kit VTK 570/2 2 0020076780
3 Tube collector VTK 570/2 1 0010002227
4 Tube collector VTK1140/2 1 0010002228
5
Connecting kit VTK (basic module)
- Compression fitting 15 mm x 3/4'' external thread DN16
- Insulation EPDM 13 x 28, 60 mm, split
1 0020076785
6
Connecting kit VTK (expansion module)
- Rail joining pieces
- Double nipple 15 x 15 mm
- Insulation Armeflex HT, 25 x 20 mm, 45lg
- Cover clip
1 0020076779
7 Valve, 2-way VTK for parallel interconnection 1 0020076784
8 Bracket type S 4
0020067275 (for mounting side-by-side)
0020067276 (for mounting on top of one another)
9 Bracket type S flat 4
0020080145 (for mounting side-by-side)
0020080147 (for mounting on top of one another)
10 Bracket type P (for pantile) 4
0020067273 (for mounting side-by-side)
0020067274 (for mounting on top of one another)
11 Long base (accessory, not available in every country) 4 0020080177
12 Stair bolt mounting kit 4 0020067277
Table 4.1 On-roof mounting bill of materials
Installation manual auroTHERM 0020077994_006
4 Before installation
Page 7
7Installation manual auroTHERM 0020077994_00
4.2.2 Flat-roof mounting
1
2
3
6
4
5
7
8
9
Fig. 4.2 Flat roof mounting kit
Pos. Description Quantity Article number (kit)
1 Rail kit VTK 1140/2 2 0020076781
2 Rail kit VTK 570/2 2 0020076780
3 Open air installation, VTK 1 0020076778
4 Gravel tray kit
230020059904 (2 pcs.)
0020059905 (3 pcs.)
5 Tube collector VTK 570/2 1 0010002227
6 Tube collector VTK1140/2 1 0010002228
7 Valve, 2-way VTK for parallel interconnection 1 0020076784
8 Connecting kit VTK (basic module) 1 0020076785
9 Connecting kit VTK (expansion module) 1 0020076779
Table 4.2 Flat roof installation bill of materials
Before installation 4
GB
Page 8
4.3 Assembling the collector array
The following tables list the required components according to the type of installation.
4.3.1 On-roof mounting
When mounted on the roof, Vaillant tube collectors can
be arranged above one another in up to 3 rows.
4.3.1.1 Collector arrangement, 1-row
Fig. 4.3 Installation kit for single row on-roof mounting
(here: VTK 570/2)
Number of collectors 1 2 3 4 5 6 7 8 9 10 11 12 13 14
VTK 570/2
Connecting kit VTK (basic module)
Part No. 0020076785
Required quantity
1
1)
Connecting kit VTK (expansion module)
Part No. 0020076779
- 1 2 3 4 5 6 7 8 9 10 11 12 13
Bracket kit Type P
(pantile)
Part No. 0020067273
12)22)32)42)52)62)72)82)92)102)112)122)132)14
2)
Bracket kit Type S
(shingle)
Part No. 0020067275
Bracket kit Type S flat
Part No. 0020080145
Bracket kit (hanger
bolt)
Part No. 0020067277
Rail kit (2), VTK 570/2
Part No. 0020076780
1234567891011121314
1) 1 each per row
2) applies up to 700 m above sea level
Table 4.3 Components for single row on-roof mounting
Installation manual auroTHERM 0020077994_008
4 Before installation
Page 9
Number of collectors
1234567
VTK 1140/2
Connecting kit VTK (basic module)
Part No. 0020076785
Required quantity
1
1)
Connecting kit VTK (expansion module)
Part No. 0020076779
-123456
Bracket kit Type P (pantile)
Part No. 0020067273
1
2)
2
2)
3
2)
4
2)
5
2)
6
2)
7
2)
Bracket kit Type S
Part No. 0020067275
Bracket kit Type S flat
Part No. 0020080145
Bracket kit (hanger bolt)
Part No. 0020067277
Rail kit (2), VTK 1140/2
Part No. 0020076781
1234567
VTK 1140/2 + VTK 570/2
Number of collectors VTK 1140/2
123456
Number of collectors VTK 570/2
111111
Connecting kit VTK (basic module)
Part No. 0020076785
Required quantity
1
1)
Connecting kit VTK (expansion module)
Part No. 0020076779
123456
Bracket kit Type P
(pantile)
Part No. 0020067273
2
2)
3
2)
4
2)
5
2)
6
2)
7
2)
Bracket kit Type S
Part No. 0020067275
Bracket kit Type S flat
Part No. 0020080145
Bracket kit (hanger bolt)
Part No. 0020067277
Rail kit (2), VTK 1140/2
Part No. 0020076781
123456
Rail kit (2), VTK 570/2
Part No. 0020076780
1
1) 1 each per row
2) applies up to 700 m above sea level
Table 4.3 Components for single row on-roof mounting (contin-
ued)
9Installation manual auroTHERM 0020077994_00
Before installation 4
GB
Page 10
4.3.1.2 Collector arrangement, 2-row
A
B
A
Fig. 4.4 Installation kit for 2-row on-roof mounting
(here: VTK 570/2)
Number of collectors per row 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Number of rows 2
VTK 570/2
Connecting kit VTK (basic module)
Part No. 0020076785
Required quantity
2
1)
Connecting kit VTK (expansion module)
Part No. 0020076779
-2468101214161820222426
Bracket kit Type P
(pantile)
Part No. 0020067273
a
12)22)32)42)52)62)72)82)92)102)112)122)132)14
2)
Bracket kit Type S
Part No. 0020067275
Bracket kit Type S flat
Part No. 0020080145
Bracket kit Type P
(pantile)
Part No. 0020067274
B
1
2)22)32)42)52)62)72)82)92)102)112)122)132)142)
Bracket kit Type S
Part No. 0020067276
Bracket kit Type S flat
Part No. 0020080147
Rail kit (2),
VTK 570/2
Part No. 0020076780
2 4 6 8 10 12 14 16 18 20 22 24 26 28
1) when the connection between the rows is also flat-sealing
2) applies up to 700 m above sea level
Table 4.4 Components for 2-row on-roof mounting
Installation manual auroTHERM 0020077994_0010
4 Before installation
Page 11
11Installation manual auroTHERM 0020077994_00
Number of collectors per row 1 2 3 4 5 6 7
Number of rows 2
VTK 1140/2
Connecting kit VTK (basic module)
Part No. 0020076785
Required quantity
2
1)
Connecting kit VTK (expansion module)
Part No. 0020076779
-24681012
Bracket kit Type P (pantile)
Part No. 0020067273
a 1
2)
2
2)
3
2)
4
2)
5
2)
6
2)
7
2)
Bracket kit Type S
Part No. 0020067275
Bracket kit Type S flat
Part No. 0020080145
Bracket kit, Type P
(pantile) Part No. 0020067274
B 1
2)
2
2)
3
2)
4
2)
5
2)
6
2)
7
2)
Bracket kit Type S
Part No. 0020067276
Bracket kit Type S flat
Part No. 0020080147
Rail kit (2), VTK 1140/2, Part No. 0020076781
2 4 6 8 10 12 14
1) when the connection between the rows is also flat-sealing
2) applies up to 700 m above sea level
Table 4.4 Components for 2-row on-roof mounting (continued)
4.3.1.3 Collector arrangement, 3-row
A
B
B
A
Fig. 4.5 Installation kit for 3-row on-roof mounting
(here: VTK 570/2)
Before installation 4
GB
Page 12
Number of collectors per row 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Number of rows 3
VTK 570/2
Connecting kit VTK (basic module)
Part No. 0020076785
Required quantity
3
1)
Connecting kit VTK (expansion module)
Part No. 0020076779
- 3 6 9 12 15 18 21 24 27 30 33 36 39
Bracket kit Type P
(pantile)
Part No. 0020067273
a 12)22)32)42)52)62)72)82)92)102)112)122)132)14
2)
Bracket kit Type S
Part No. 0020067275
Bracket kit Type S flat
Part No. 0020080145
Bracket kit Type P
(pantile)
Part No. 0020067274
B 22)42)62)82)102)122)142)162)182)202)222)242)262)28
2)
Bracket kit Type S
Part No. 0020067276
Bracket kit Type S flat
Part No. 0020080147
Rail kit (2), VTK 570/2
Part No. 0020076780
3691215182124273033363942
Number of collectors per row 1 2 3 4 5 6 7
Number of rows 3
VTK 1140/2
Connecting kit VTK (basic module)
Part No. 0020076785
Required quantity
3
1)
Connecting kit VTK (expansion module)
Part No. 0020076779
- 3 6 9 12 15 18
Bracket kit Type P
(pantile)
Part No. 0020067273
a 12)22)32)42)52)62)7
2)
Bracket kit Type S
Part No. 0020067275
Bracket kit Type S flat
Part No. 0020080145
Bracket kit, Type P
(pantile)
Part No. 0020067274
B 22)42)62)82)102)122)14
2)
Bracket kit Type S
Part No. 0020067276
Bracket kit Type S flat
Part No. 0020080147
Rail kit (2), VTK 1140/2
Part No. 0020076781
36912151821
1) when the connections between the rows are made by flat seal connection.
2) applies up to 700 m above sea level
Table 4.5 Components for 3-row on-roof mounting
Installation manual auroTHERM 0020077994_0012
4 Before installation
Page 13
13Installation manual auroTHERM 0020077994_00
4.3.2 Flat-roof mounting
Number of collectors 1 2 3 4 5 6 7 8 9 10 11 12 13 14
VTK 570/2
Connecting kit VTK (basic module)
Part No. 0020076785
Required quantity
1
1)
Connecting kit VTK (expansion module)
Part No. 0020076779
- 1 2 3 4 5 6 7 8 9 10 11 12 13
Mounting kit for open-air installation on a
flat roof
Part No. 0020076778
2 3 4 5 6 7 8 9 10 11 12 13 14 15
Gravel trays required 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Gravel tray kit (2 pcs.)
Part No. 0020059904
2-12-12-12- 12-
Gravel tray kit (3 pcs.)
Part No. 0020059905
-22244466688810
Rail kit (2), VTK 570/2
Part No. 0020076780
1234567891011121314
VTK 1140/2
Connecting kit VTK (basic module)
Part No. 0020076785
1
1)
Connecting kit VTK (expansion module)
Part No. 0020076779
-123456
Mounting kit for open-air installation on a
flat roof
Part No. 0020076778
2345678
Gravel trays required 8 12 16 20 24 28 32
Gravel tray (2 pcs.)
Part No. 0020059904
1-21-21
Gravel tray (3 pcs.)
Part No. 0020059905
24468810
Rail kit (2) aluminium, VTK 1140/2
Part No. 0020076781
1234567
VTK 1140/2 + VTK 570/2
Number of collectors VTK 1140/2 - 1 2 3 4 5 6
Number of collectors VTK 570/2 - 111111
Connecting kit VTK (basic module)
Part No. 0020076785
Required quantity
-1
1)
Connecting kit VTK (expansion module)
Part No. 0020076779
-123456
Mounting kit for open-air installation on a
flat roof Part No. 0020076778
-345678
Gravel trays required - 8 12 16 20 24 28
Gravel tray kit (2 pcs.)
Part No. 0020059904
-1-21-2
Gravel tray kit (3 pcs.)
Part No. 0020059905
- 244688
Rail kit (2), VTK 1140/2
Part No. 0020076781
-123456
Rail kit (2), VTK 570/2
Part No. 0020076780
-1
1) 1 each per collector array
Table 4.6 Flat roof installation components
Before installation 4
GB
Page 14
Installation manual auroTHERM 0020077994_0014
4.4 Interconnection scheme
h
Note
Observe the planning information when dimensioning the array volume flow.
Furthermore, observe the following rules:
max. 14
Fig. 4.6 Series connection VTK 570/2
• Connect a maximum of 14x VTK 570/2
(corresponding to an aperture area of 14
m
2
) in series.
max. 7
Fig. 4.7 Series connection VTK 1140/2
• Connect a maximum of 7x VTK 1140/2
(corresponding to an aperture area of 14
m
2
) in series.
Fig. 4.8 Parallel connection (here VTK 570/2)
• For aperture areas greater than 14 m2, you
must configure several collector arrays in
parallel and connect them hydraulically in
parallel.
• Always connect as many collectors as possible in series.
h
Note
You should only connect the collector arrays in parallel if the aperture
area is greater than 7 m
2
(corresponding to 7x VTK 570/2 or 3x 1140/2
+ 1x VTK 570/2).
4 Before installation
Page 15
15Installation manual auroTHERM 0020077994_00
Fig. 4.9 Sizes of the individual arrays
When collector arrays are connected in parallel, each individual array must have the
same aperture area.
Fig. 4.10 Stop valve in the collector supply line
a
Caution!
Danger of air locks!
If 3 or more collector arrays are connected in parallel, a stop valve must
be fitted in the collector supply line
(hot side) of each individual array.
These will be used for venting the individual arrays during commissioning. Only use the Vaillant stop
valve, Part No. 0020076784
a
Caution!
Danger of damage to the material as
a result of incorrect assembly!
With the valve closed or wrong valve
positioning, damaging of the collector
due to excessive pressure will be
possible. Never mount the stop valve
in the collector return. The stop
valve must be open during system
operation.
Before installation 4
GB
Page 16
Installation manual auroTHERM 0020077994_0016
4.5 Preparing the hydraulic connection
4.5.1 On-roof mounting
Fig 4.11 Passing the pipe through the sarking membrane
If there is a sarking membrane, proceed as follows:
• Make a v-shaped cut in the sarking membrane.
• Fold the upper, wider flap on to the roof batten above,
and the lower, narrower flap on to the roof batten
below.
• Fix the sarking membrane tight to the roof batten.
This ensures that the dampness flows away to the
side.
• With board-clad roofs, cut out a hole with a padsaw.
• Work the roofing felt as described for the sarking
membrane.
4.5.2 Flat-roof mounting
a
Caution!
The roof skin can break and cause leaks!
When installing the roof sealing surfaces, make
sure the roof skin is adequately protected.
• Place large protection mats under the system.
• If the frame is screwed directly, check the sealing of
the building shell.
4.6 Required tools
• Have the following tools ready for assembling the
tube collectors.
Fig. 4.12 Assembly tools: spirit level, cordless screwdriver,
Torx bit (TX30, supplied), allen key 5mm,
socket/combination wrench (13 mm), hammer,
measuring tape / folding rule
5 On-roof mounting
With on-roof mounting, the tube collectors are fastened
to horizontal mounting rails quickly and reliably with attachment clips. To ensure a good adaptation to the different roofings, four different brackets are available:
- Type P for standard concrete tiles (e.g. pantile),
- Type S for extremely high protruding tiles (e.g. Mediterranean clay tiles)
- Type S flat (low profile) for flat tiles or slate roofs.
- Stair bolt mounting kit for universal fixing (e.g. corrugated slabs, sheet with trapezoidal corrugations, shingles).
a
Caution!
Risk of corrosion!
On roofs made of metals more noble than aluminium (e.g. on copper roofs) galvanic corrosion
can occur at the anchor points, whereby the attachment of the collectors is no longer guaranteed. Ensure that the metals are separated by
suitable underlays.
When mounted on the roof, the Vaillant tube collectors
in the collector array can be arranged side-by-side or
above each other.
In general, the installation steps and instructions described in this manual are applicable to all collector
arrangements.
Any different installation steps are clearly pointed out:
For collectors arranged side-by-side
For collectors arranged above each other
When arranging the collectors, take note in each case of
the possible interconnection schemes in Section 4.4.
4 Before installation
5 On-roof mounting
Page 17
17Installation manual auroTHERM 0020077994_00
5.1 Fitting the brackets
For collectors arranged side-by-side
• Mount the anchors for the mounting rails at the following distances:
h
Note
During final fixing the pre-assembly dimension
A is reduced by approx. 20 - 25 mm. Take care
that there is adequate clearance on the anchors, therefore.
Number of
collectors
A* B C D
VTK 570/2
1
1663 / 1638
50 - 100
507 - 607
707
2 1414
3 2121
4 2828
5 3535
6 4242
7 4949
8 5656
9 6363
10 7070
11 7777
12 8484
13 9191
14 9898
VTK 1140/2
1
100 - 200
997 - 1197
1397
2 2794
3 4191
4 5588
5 6985
6 8382
7 9779
* Pre-assembly dimension / Finished dimension
During final fixing of the collectors, the pre-assembly dimension
is reduced by approx. 20 - 25 mm.
Table 5.1 Spacings when arranging collectors side-by-side
[in mm]
B
B
B
C
B
A
D
A
A
Fig. 5.1 Spacings when arranging collectors side-by-side
On-roof mounting 5
GB
Page 18
Installation manual auroTHERM 0020077994_0018
For collectors arranged on top of each other
• Mount the anchors for the mounting rails at the following distances:
h
Note
During final fixing the pre-assembly dimension
A is reduced by approx. 20 - 25 mm. Take care
that there is adequate clearance on the anchors, therefore.
Number of
collectors
A* B C D E
2 rowsE3 rows
VTK 570/2
1
1663 / 1638
50 - 100
507 - 607
707
3322 5006
2
1414
3
2121
4
2828
5
3535
6
4242
7
4949
8
5656
9
6363
10
7070
11
7777
12
8484
13
9191
14
9898
VTK 1140/2
1
1663 / 1638
100 - 200
997 - 1197
1397
3322 5006
2
2794
3
4191
4
5588
5
6985
6
8382
7
9779
* Pre-assembly dimension / Finished dimension
During final fixing of the collectors, the pre-assembly dimension
is reduced by approx. 20 - 25 mm.
Table 5.2 Spacings when arranging collectors on top of each
other [in mm]
A
E
B
B
B
C
B
D
A
A
E
E
Fig. 5.2 Spacings when arranging collectors on top of each
other
5 On-roof mounting
Page 19
19Installation manual auroTHERM 0020077994_00
5.2.1 Bracket Type P (pantile)
A
B
1
2
1
2
5 mm
3
Fig. 5.3 Bracket type P
Key
1 Lower bracket
2 Upper bracket
3 Central bracket
The bracket type P can be fixed to the rafters
(Pos. A) or by use of the long rear plate set
0020080177 can be offset to suit tile profile.
Fixing to rafters
5
3
4
6
1
2
A
B
Fig. 5.4 Fixing to rafters
1. Uncover the rafters where needed. For distances
please see Tab. 5.1 and 5.2.
2. Position the bracket. Take note of the correct positions of the upper, central and lower brackets
(see Fig. 5.3).
3. Loosen the upper bolt with the socket/combination
wrench (13 mm) until the height of the bracket can be
adjusted.
4. Position the bracket at the same height of the pantiles, so that the upper part of the anchor is on the
roofing, and tighten the bolt with the socket/combination wrench (13 mm).
5. Screw the bracket to the rafters with the 3 supplied
bolts.
6. Slide the pantiles back to the original position.
If necessary, adapt the water gutter on the lower (A)
or upper side (B) of the pantile with a hammer, or
suitable disk cutter, until the pantiles are tight.
d
Danger!
Risk of injury!
Always wear suitable eye protection and all
necessary personal protective equipment and
ensure the area of work is safe with regard to
other persons.
On-roof mounting 5
GB
Page 20
Installation manual auroTHERM 0020077994_0020
h
Note
With some roof covering it may be necessary to
offset the roof bracket to the left or right of
the rafter, to do this use the accessory:
Part No. 0020080177 (not available in every
country). Observe the appropriate installation
manual.
Fixing to the roof batten
a
Caution!
Only acceptable if roof and battens have been
inspected by a competent roofing contractor /
designer.
Before installation on the roof batten, check
the load capacity of the roof batten!
If necessary, replace the roof batten or provide
additional timber bearers.
Also ensure battens are fixed securely (screw
to rafter each side of brackets).
1
3
2
5
6
4
Fig. 5.5 Fixing to the roof batten
1. Slide upward one or two pantiles above the roof batten.
For distances please see Tab. 5.1 and 5.2.
2. Loosen the upper bolt with the socket/combination
wrench (13 mm) until the height of the bracket can be
adjusted.
3. Hook the bracket to the roof batten. Take note of the
correct positions of the upper, central and lower
brackets when doing this (see Fig. 5.3).
4. Position the bracket at the same height of the pantiles. The upper part is on the roofing, the lower part
is pressed tight against the roof batten from the bottom.
Take care anchor is tightly fixed and pre-tensioned on
the roof batten (toothing engaged).
5. Tighten the bolt with the socket/combination wrench
(13 mm).
6. Slide the pantiles back to the original position. If necessary, adapt the water gutter on the lower side of
the pantile with a hammer, until the pantiles are tight
5 On-roof mounting
Page 21
21Installation manual auroTHERM 0020077994_00
5.2.2 Bracket Type S (for high profile pantiles)
a
Caution!
Before installation on the roof batten, check
the load capacity of the roof batten!
If necessary, replace the roof batten.
4
2
1
3
Fig. 5.6 Fixing the bracket type S
1. Uncover the rafters or the roof batten where needed.
For distances please see Tab. 5.1 and 5.2.
2. Position the bracket. Take note of the correct positions of the upper, central and lower brackets
(see Fig. 5.3).
5.2.3 Bracket Type S (Low profile for slate/ flat
tiles)
a
Caution!
Only acceptable if roof and battens have been
inspected by a competent roofing contractor /
designer.
Before installation on the roof batten, check
the load capacity of the roof batten!
If necessary, replace the roof batten or provide
additional timber bearers.
Also ensure battens are fixed securely (screw
to rafter each side of brackets).
4
2
1
3
Fig. 5.7 Fixing the bracket type S flat
1. Uncover the rafters or the roof batten where needed.
For distances please see Tab. 5.1 and 5.2.
2. Position the bracket. Take note of the correct positions of the upper, central and lower brackets
(see Fig. 5.3).
3. Screw the bracket to the rafters/roof batten with the
3 supplied bolts.
4. Slide the pantiles back to the original position.
3. Screw the bracket to the rafters/roof batten with the
3 supplied bolts.
4. Slide the pantiles back to the original position.
On-roof mounting 5
GB
Page 22
Installation manual auroTHERM 0020077994_0022
5.2.3 Hanger bolt fixing kit
a
Caution!
Before installation check the load-bearing capacity of the wooden substructure!
If necessary, strengthen it.
Only for use on roof structures with timbers
large enough to accept stair bolt.
1
2
3
5
4
6
Fig. 5.8 Fixing with stair bolt
1. Bore a hole in the roof covering in the corresponding
position. For distances please see Tab. 5.1 and 5.2.
2. Tighten the stair bolt to the rafters through the pantile.
3. Screw the lower nut against the roof covering, and
tighten it until the seal sufficiently seals the opening.
4. Position the central nut so that after inserting the anchor upper part the front contact area is on the roofing. Take note of the correct positions of the upper,
central and lower brackets when doing this
(see Fig. 5.3).
5. Screw the second nut and tighten it (17 mm).
6. Cut off the threaded bolt directly above the nut.
Deburr the interface.
5 On-roof mounting
Page 23
23Installation manual auroTHERM 0020077994_00
5.3 Fitting the collectors
Fig. 5.9 Fixing the mounting rails
• Fix the horizontal mounting rails with the
frame clamping elements on the brackets.
h
Note
For the vertical spacing between the
brackets please see Tables 5.1 and
5.2.
h
Note
For a better visual appearance, position the lower rail as low as possible
on the bracket.
Fig. 5.10 Joining the mounting rails
• Insert the connecting elements into the
mounting rails by the side, until they lock
into place.
• Join the mounting rails and fix them with
the clamping elements on the brackets
(see Fig. 5.8).
1
2
Fig. 5.11 Balancing the mounting rails
• Make sure that the mounting rails are fixed
in horizontal position.
• Compensate any difference in height by
moving the clamping elements.
• Pull the clamping element upward, now it
can be moved and it engages again when
released.
On-roof mounting 5
GB
Page 24
Installation manual auroTHERM 0020077994_0024
1
Fig. 5.12 Hooking the collector
• Place the collector with the lower edge on
the mounting rail and hook it to the clamping elements.
• Make sure that the upper part (1) of the
clamping element is above the collector
rail.
• Tighten the clamping elements of the lower
mounting rail with the socket/combination
wrench (13 mm).
a
Caution!
After tightening the clamping elements, make sure the tension is correct by shaking the upper part of the
clamping element. If it can be moved,
retighten the nut.
1
Fig. 5.13 Peeling the film from the edges of the collector
• Lift the film at the edges of the collector.
This will facilitate pulling off the film later,
after commissioning.
H
Danger!
Danger of burning!
In case of solar irradiation inside the
units, collectors can reach
300 °C. Remove the sun protection
film installed at the factory only
after the solar energy system has
been started up.
Fig. 5.14 Removing the carrying straps
• Remove the carrying straps.
5 On-roof mounting
Page 25
25Installation manual auroTHERM 0020077994_00
1
Fig. 5.15 Mounting other collectors
• Place the next collector on the lower
mounting rail.
• Make sure that the upper part (1) of the
clamping element is above the collector
rail.
• Tighten the lower clamping elements on
the collector.
• Slide the upper mounting rails and clamping elements little by little from the top
against the collector.
1
2
A
B
Fig. 5.16 Joining the collectors
• Couple the double nipple (A) (from the VTK
expansion module connecting kit, Part No.
0020076779) to the union nut (B) on the
first collector.
• Push the collectors together.
Fig. 5.17 Tightening the compression fitting
a
Caution!
Danger of damage to the collector as
a result of incorrect assembly!
To prevent damage when tightening
the compression fitting, always use a
second spanner to provide a counter
force.
• Tighten the two union nuts on the double
nipple.
1
Fig. 5.18 Positioning the upper mounting rail
• Slide the upper mounting rails towards the
collector.
• Take care that the upper parts of the clamping elements are over the rails on the
collectors.
On-roof mounting 5
GB
Page 26
Installation manual auroTHERM 0020077994_0026
1
2
3
Fig. 5.19 Central mounting rail for 2 or 3 rows of collectors
For collectors arranged on top of
each other
• Slide the central mounting rail flush with
the lower collector (1).
• Make sure that the hook of the clamping
element (3) is above the edge of the collector.
• Fix the mounting rail (2) for the next row
of collectors to the clamping element.
2
1
3
Fig. 5.20 Central mounting rail for 2 or 3 rows of collectors
For collectors arranged on top of
each other
• Place the upper collector (1) in the central
mounting rail (2).
• Screw the clamping elements (3) on the
central rail tight.
• Fit the second row of collectors as described above.
5 On-roof mounting
Page 27
27Installation manual auroTHERM 0020077994_00
Fig. 5.21 Fitting the hydraulic connections
• For systems with collector sensors: Plug
the collector sensor into the opening provided on the flow side of the collector (hot
side).
With several rows of collectors:
• Connect the rows of collectors in accordance with the interconnection schemes
(cf. Section 4.4).
h
Note
In general it is possible to attach the
collector sensor to the left or the
right side of the collector array, as
the collectors have a corresponding
opening on each side.
Ensure VR11 sensors are fitted to the
hot side of the collector array.
a
Caution!
Danger of damage to the collector as
a result of incorrect assembly!
To prevent damage when tightening
the compression fitting, always use a
second spanner to provide a counter
force.
• Connect the collector supply and return to
the system with the connection pipes.
• To do this, connect the compression fitting
(from the VTK basic module connecting kit,
Part No. 0020076785) to the collector and
connect this to the connecting pipe.
• If necessary check all connections for
leaks.
1
3
2
Fig. 5.22 Insulating the hydraulic connections
After commissioning:
• Insulate the hydraulic connections with the
Armeflex insulation (1) (from the VTK expansion module connecting kit, Part No.
0020076779).
• Cover the insulation with the cover clip (2)
(from the VTK expansion module connecting kit, Part No. 0020076779).
• Insulate the hydraulic system connections
with the EPDM insulation (3) (from the VTK
expansion module connecting kit, Part No.
0020076779).
On-roof mounting 5
GB
Page 28
Installation manual auroTHERM 0020077994_0028
6 Flat-roof mounting
6 Flat-roof mounting
With flat roof installation, the tube collectors are fastened to frames.
The flat roof frames allow for a flexible installation with
an angle of 30 °, 45 ° or 60 °.
Also note that the height of the mounting rails is variable, in order to compensate for small floor irregularities.
6.2 Weighting and arrangement of the frames
First of all, define the necessary load of the frames
based on Tab. 6.1.
Load [kg/collector]
Height above ground
Angle of attack 0-10 m 10-18 m 18-25 m
30° 159 178 197
45° 225 252 279
60° 276 309 342
Table 6.1
Flat roof installation load
a
Caution!
The roof may collapse!
Before installation, check the maximum roof
load!
If necessary, contact a specialist roofing designer/contractor before proceeding.
Consider if the frame can be bolted to the
structure as opposed to weighting.
a
Caution!
For determining the installation location, keep
a distance of 1 m from the roof edge! A different distance causes high wind loads.
Page 29
29Installation manual auroTHERM 0020077994_00
For the required space and the distances between
frames please see Tables 6.2 to 6.4.
VTK 570/2 [distances in mm]
B
E
D
A
C
F
α
1)
C
α
1)
Number of
collectors
A
3)
30°
(28.5°)
45°
(42.5°)
60°
(59.5°)
CD
±30
A
BFB F BF
1 560
4)
1072
2950
2)
1432
3940
2)
1757
4830
2)
2460
-
-
2 1168
584
707
3 1875
4 2582
5 3289
6 3996
7 4703
8 5410
9 6117
10 6824
11 7531
12 8238
13 8945
14 9652
1) Installation angle 30°, 45° oder 60°
2) Solar altitude of 20° (winter sun)
3) Dimension A may vary in conjunction with dimensions D and E by
r30 mm
4) r5 mm
Table 6.2 Dimensions for VTK 570/2 [in mm]
Flat-roof mounting 6
GB
Page 30
Installation manual auroTHERM 0020077994_0030
VTK 1140/2 [distances in mm]
E
D
A
B
C
F
α
1)
C
α
1)
Number of
collectors
A
3)
30° 45° 60°
C
D
±30
A
BFBFBF
1 1170
4)
1072 2950
2)
1432 3940
2)
1757 4830
2)
2460
--
2 2548
1274 1397
3 3945
4 5342
5 6739
6 8136
7 9533
1) Angle of attack 30°, 45° or 60°
2) Solar altitude of 20° (winter sun)
3) Dimension A may vary in conjunction with dimensions D and E by ±30 mm
4) ±5 mm
Table 6.3 Dimensions for VTK 1140/2 [in mm]
6 Flat-roof mounting
Page 31
31Installation manual auroTHERM 0020077994_00
VTK 1140/2 and VTK 570/2 in combination [distances in mm]
E
D
A
B
G
C
F
α
1)
C
α
1)
VTK 570/2
VTK 1140/2
Number of
collectors
A
3)
30° 45° 60°
C
D
±30
AG
BFBFBF
VTK
570/2
VTK
1140/2
1 1 1170
4)
1072 2950
2)
1432 3940
2)
1757 4830
2)
2460 584 1397 1274
1 2 2548
1 3 3945
1 4 5342
1 5 6739
1 6 8136
1) Angle of attack 30°, 45° or 60°
2) Solar altitude of 20° (winter sun)
3) Dimension A may vary in conjunction with dimensions D and E by ±30 mm
4) ±5 mm
Table 6.4 Dimensions for VTK 1140/2 and VTK 570/2 in com-
bination [in mm]
Flat-roof mounting 6
GB
Page 32
Installation manual auroTHERM 0020077994_0032
6.3 Fitting the collectors
1
2
3
Fig. 6.1 Preparing the frame
• Open the frames.
a
Caution!
Follow Tables 6.1 to 6.4 without exception to determine the required
weights!
With screwed connection on the roof:
• Fasten the rear section to the base section
with a retaining pin and locking clip.
1
VTK 570/2
VTK 1140/2
1
Fig. 6.2 Mounting the gravel trays
If gravel trays are used:
• Slide the gravel tray (1) on the base section.
• Fasten the rear section to the base section
with a retaining pin and locking clip.
60°
45°
30°
1
2
Fig. 6.3 Frame assembly
• Insert the telescopic sections into each
other, until the holes of the desired angular
position are placed one above the other.
h
Note
You can choose settings of 30°, 45°
or 60°.
• Insert the retaining pin into the corresponding hole (1).
• Fix the retaining pin with the safety clip (2).
6 Flat-roof mounting
Page 33
33Installation manual auroTHERM 0020077994_00
VTK 570/2
VTK 1140/2
1
1
Fig. 6.4 Frames with gravel trays
If gravel trays are used:
• Place large protection mats under the system.
• Set up the frames (1) according to the number of collectors to be mounted.
h
Note
The weights and distances can be
found in Table 6.1.
a
Caution!
Before mounting the collectors, fill
the gravel trays on the first frame
with gravel or other suitable
weighting material, to give the system stability.
Fig. 6.5 Direct screwed connection
With screwed connection on the roof:
• Assembly frames based on the number of
collectors to be installed.
h
Note
The weights and distances can be
found in Table 6.1.
• Fix the frames on the roof.
a
Caution!
The roof skin can break and cause
lack of tightness!
When installing the roof sealing surfaces, make sure the roof skin is adequately protected.
1
2
Fig. 6.6 Fixing and blocking the mounting rail
• Fasten the horizontal mounting rails (1) to
the clamping elements(2) on the frames.
• Compensate for any difference in height by
moving the clamping elements (2).
• Pull the lower part of the clamping element
(2) upwards; now it can be moved and it
engages again when released.
Flat-roof mounting 6
GB
Page 34
34
20
A B
1
1
2
Fig. 6.7 Positioning the mounting rails
• If multiple collectors are mounted, have the
mounting rails (1) meet in the centre of the
frames (2) (A).
• On the first and last frame, the mounting
rails (1) should project by 20 mm over the
edge (B).
1
Fig. 6.8 Joining the mounting rails
• Insert the connecting elements (1) into the
ends of the mounting rails.
• Join the mounting rails and fix them to the
frame clamping elements.
• Compensate any difference in height by
moving the clamping elements.
1
Fig. 6.9 Hooking the collector
• Place the collector with the lower edge in
the section of the mounting rail.
• Position the upper part (1) of the clamping
element over the rail on the collector.
• Tighten the clamping elements of the lower
mounting rail with the socket/combination
wrench (13 mm AF).
a
Caution!
After tightening the clamping elements, make sure the tension is correct by shaking the upper part of the
clamping element. If it can be moved,
retighten the nut.
1
Fig. 6.10 Peeling the film from the edges of the collector
• Lift the film at the edges of the collector.
This will facilitate pulling off the film later,
after commissioning.
H
Danger!
Danger of burning!
In case of solar irradiation inside the
units, collectors can reach
300 °C. Remove the sun protection
film installed at the factory only
after the solar energy system has
been started up.
Installation manual auroTHERM 0020077994_00
6 Flat-roof mounting
Page 35
35Installation manual auroTHERM 0020077994_00
Fig. 6.11 Removing the carrying straps
• Remove the carrying straps.
1
Fig. 6.12 Mounting other collectors
• Place the next collector on the lower mounting rail at a distance of approx. 10 cm from
the first collector.
1
2
A
B
Fig. 6.13 Joining the collectors
• Couple the double nipple (A) (from the VTK
expansion module connecting kit, Part No.
0020076779) to the union nut (B) on the
first collector.
• Push the collectors together.
Fig. 6.14 Tightening the compression fitting
a
Caution!
Danger of damage to the collector as
a result of incorrect assembly!
To prevent damage when tightening
the compression fitting, always use a
second spanner to provide a counter
force.
• Tighten the two union nuts on the double
nipple.
Flat-roof mounting 6
GB
Page 36
Installation manual auroTHERM 0020077994_0036
1
Fig. 6.15 Positioning the upper mounting rail
• Slide the upper mounting rails towards the
collectors.
• Take care that the upper parts (1) of the
clamping elements are over the rails on the
collectors.
• Tighten the clamping element with the
socket/combination wrench (13 mm AF).
a
Caution!
After tightening the clamping elements, make sure the tension is correct by shaking the upper part of the
clamping element. If it can be moved,
retighten the nut.
Fig. 6.16 Fitting the hydraulic connections
• For systems with collector sensors: Plug
the collector sensor into the opening provided on the flow side of the collector (hot
side).
h
Note
It is possible to attach the collector
sensor to the left or the right side of
the collector array, as the collectors
have a corresponding opening on each
side.
Always ensure the VR11 sensor is fitted to the hot side of the collector
array.
a
Caution!
Danger of damage to the collector as
a result of incorrect assembly!
To prevent damage when tightening
the compression fitting, always use a
second spanner to provide a counter
force.
• Connect the collector supply and return to
the system with the connection pipes.
• To do this, connect the compression fitting
(from the VTK basic module connecting kit,
Part No. 0020076785) to the collector and
connect this to the connecting pipe.
• If necessary check the connections for
leaks.
6 Flat-roof mounting
Page 37
37Installation manual auroTHERM 0020077994_00
1
3
2
Fig. 6.17 Insulating the hydraulic connections
After commissioning:
• Insulate the hydraulic connections with the
Armeflex insulation (1) (from the VTK expansion module connecting kit, Part No.
0020076779).
• Cover the insulation with the cover clip (2)
(from the VTK expansion module connecting kit, Part No. 0020076779).
• Insulate the hydraulic system connections
with the EPDM insulation (3) (from the VTK
expansion module connecting kit, Part No.
0020076779).
7 Final operations
Based on the following table, make sure all work steps
have been performed.
Step
1 For flat roof installation: frames fixed with retaining pin and safety clip
2 For flat roof installation: gravel trays filled/frames anchored
3 All hydraulic connections tightened
4 Hydraulic connections laid correctly
5 VR 11 collector sensors connected (for systems with collector sensors)
6 All clamping elements tightened
7 Collectors connected to lightning protection device (optional with lightning protection device)
8 Pressure test (ideally with air pressure) carried out, all connections tight
Table 7.1 Final operations
Flat-roof mounting 6
Final operations 7
GB
Page 38
Installation manual auroTHERM 0020077994_0038
8 Recycling and disposal
The development of all Vaillant products takes into account the future with regard to use of materials that
can be easily recycled with the least detrimental affects
upon our environment. The packaging makes maximum
use of recycled materials and the appliance itself consists mainly of metals that are readily separated into recyclable raw materials. After many years of reliable operation our appliance can be disposed via recognised recycling and reclamation facilities in a way that will cause
least harm to our environment.
9 Vaillant Customer Service
and warranty
9.1 Vaillant warranty
Vaillant provides a full parts and labour warranty for
this appliance.
The appliance and all associated pipe work and controls
must be installed by suitably competent persons in accordance with all current and relevant safety, building
control and planning regulations and in full compliance
with the manufacturer’s instructions.
All unvented domestic hot water cylinders must be installed by a competent person to the prevailing building
regulations at the time of installation (G3).
Terms and conditions apply to the warranty, details of
which can be found on the warranty registration card included with this appliance.
Failure to install and commission this appliance in compliance with the manufacturer’s instructions may invalidate the warranty (this does not affect the customer’s
statutory rights).
9.2 Vaillant service
To ensure regular servicing, it is strongly recommended
that arrangements are made for a Maintenance Agreement.
Please contact Vaillant Service Solutions
(0870 6060 777) for further details.
8 Disposal
9 Vaillant Customer Service and warranty
Page 39
39Installation manual auroTHERM 0020077994_00
10 Technical data
Units VTK 570/2 VTK 1140/2
Number of vacuum tubes 6 12
η
0
(aperture), DIN4757-4 or EN12975
% 64.2
c
1
with wind, relative to aperture W/(m2k) 0.885
c
2
with wind, relative to aperture W/(m2k2) 0.001
K
θ,trans
(50°), relative to aperture
1
K
θ,long
(50°), relative to aperture
0.9
Predicted energy gain (location Würzburg, 5m
2
aperture, 300l cylinder, 4 persons)
kWh/m2a 586
Peak output per collector module W
peak
w 642 1278
Area-related heat capacity c kJ/(m
2
k) 8.3
Volume flow (per m
2
of collector surface) l/(m2h) 24
Minimum volume flow in solar circuit l/h 180
Absolute pressure in hard vacuum bar 10
-5
mbar (= 10-8 bar)
Absorber absorption alpha > 93.5% (see also ITW test report)
Absorber emission epsilon < 6% (see also ITW test report)
Modular 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 m
2
1.16 2.30
Aperture surface area m
2
1.0 2.0
Absorber surface area m
2
1.0 2.0
Collector capacity l 0.9 1.8
Weight kg 19 37
Operating overpressure, max. permissible bar 10 10
Standstill temperature, max. °C 295
Connection diameter, supply/return mm 15
Collector material Al / Cu / Glass / Silicon / PBT / EPDM / TE
Glass tubing material Borosilicate 3.3
Selective absorber coating material Aluminium nitrite
Glass tubing (outer dia./inner dia./wall thickness/tube
length)
47 / 37 / 1.6 / 1500
Colour (plastic parts) Black
Thermal shock test ITW test number 02COL282
Hail impact test per DIN EN 12975-2 TÜV test number 435/142448
Type approval number 01-228-770
Table 10.1 Technical data
Technical data 10
GB
Page 40
Installation manual auroTHERM 0020077994_0040
VTK 570/2
1652
111
702
Fig. 10.1 Dimensional drawing VTK 570/2
10 Technical data
Page 41
41Installation manual auroTHERM 0020077994_00
VTK 1140/2
1652
111
1392
Fig. 10.2 Dimensional drawing VTK 1140/2
0
0%
10%
20%
30%
40%
50%
60%
70%
80%
5101520253035404550556065707580
ΔT
η
Fig. 10.3 Efficiency of the VTK 570/2 and the 1140/2 at an ir-
radiance Eg of 300 W/m
2
Key
K Efficiency [%]
'T = T
Collector
- T
Ambient air
[K]
Technical data 10
GB
Page 42
Installation manual auroTHERM 0020077994_0042
0
0%
10%
20%
30%
40%
50%
60%
70%
80%
5101520253035404550556065707580
ΔT
η
Fig. 10.4 Efficiency of the VTK 570/2 and the 1140/2 at an ir-
radiance Eg of 800 W/m
2
Key
K Efficiency [%]
'T = T
Collector
- T
Ambient air
[K]
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
Fig. 10.5 Pressure loss graph
Key
Q Mass flow [l/h]
'p Pressure loss [mbar]
10 Technical data
Page 43
Page 44
0020077994_00 GB 022009 – Modifications reserved
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