For the competent person
Installation manual
Installation manual
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Telefon 021 91 18‑0 Telefax 021 91 18‑28 10
info@vaillant.de www.vaillant.de
auroTHERM, auroTHERM
plus
VFK 145/2 H/V, VFK 155 H/V
GB, IE
Contents
Contents
1 Safety .................................................................... 3
1.1 Action-related warnings ......................................... 3
1.2 General safety information .................................... 3
1.3 Intended use.......................................................... 4
1.4 Regulations (directives, laws, standards) .............. 5
1.5 CE label ................................................................. 6
2 Notes on the documentation .............................. 7
2.1 Observing other applicable documents ................. 7
2.2 Storing documents................................................. 7
2.3 Applicability of the instructions .............................. 7
2.4 Name ..................................................................... 7
3 Description of the unit......................................... 7
3.1 Type overview........................................................ 7
3.2 Information on the identification plate.................... 7
3.3 Purpose of the unit................................................. 7
4 On-roof fitting and installation ........................... 7
4.1 Preparing for fitting and installation ....................... 7
4.2 Carrying out the installation ................................. 12
4.3 Completing and checking the installation ............ 20
5 Flat roof fitting and installation ........................ 22
5.1 Preparing for fitting and installation ..................... 22
5.2 Carrying out the installation ................................. 35
5.3 Completing and checking the installation ............ 41
6 Inspection and maintenance ............................ 43
6.1 Maintenance plan ................................................ 43
6.2 Observing inspection and maintenance
intervals ............................................................... 43
6.3 General inspection and maintenance
instructions........................................................... 43
6.4 Preparing for inspection and maintenance .......... 43
6.5 Checking collectors and connections for
damage, dirt and lack of tightness ....................... 43
6.6 Cleaning collectors .............................................. 43
6.7 Checking brackets and collector components
for firm seating ..................................................... 44
6.8 Check the pipe insulations for damage ............... 44
6.9 Replacing damaged pipe insulations................... 44
6.10 Disposing of damaged pipe insulations ............... 44
7 Troubleshooting ................................................ 44
7.1 Procuring spare parts .......................................... 44
7.2 Carrying out repairs ............................................. 44
8 Decommissioning.............................................. 45
8.1 Temporary decommissioning .............................. 45
8.2 Permanently decommissioning............................ 45
9 Customer service............................................... 46
10 Technical data.................................................... 47
10.1 Technical data table............................................. 47
10.2 Dimensions.......................................................... 48
Index ................................................................................... 49
2 Installation manual auroTHERM, auroTHERM plus 0020100571_03
Safety 1
1 Safety
1.1 Action-related warnings
Classification of action-related warnings
The action-related warnings are classified in
accordance with the severity of the possible
danger using the following warning signs and
signal words:
Warning symbols and signal words
Danger!
Imminent danger to life or risk of
severe personal injury
Danger!
Risk of death from electric shock
Warning.
Risk of minor personal injury
Caution.
Risk of material or environmental
damage
1.2.3 Risk of death due to falling parts
Unsecured collectors can fall from the roof
and create a possible danger to people.
▶ Block off the areas in the fall area below
the place of work to a sufficient extent so
that people cannot be injured by falling
objects.
▶ Indicate the working area, e.g. with inform-
ation signs, in accordance with the applicable regulations.
1.2.4 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.
1.2 General safety information
1.2.1 Risk of death due to improper
fastening systems
The collectors may fall if fastening systems
are incorrectly fitted.
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 approved by Vaillant.
1.2.2 Risk of death due to inadequate
load-bearing 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 con-
firmed the roof as suitable for collector installation.
▶ Only install the collectors on a roof that
has adequate load-bearing capacity.
1.2.5 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 lifethreatening accidents.
▶ Perform all work steps as described in this
manual.
▶ Observe all safety precautions described
in this manual.
▶ In addition, comply with all safety regula-
tions that specifically apply in your region.
1.2.6 Risk of burns due to hot collector
surfaces
In the event of solar radiation inside the units,
collectors can reach 200 °C. If you touch the
collectors without protection, you could burn
yourself.
▶ If a sun protection film has been attached
to the collectors in the factory, remove it
only after the solar plant has been started
up.
▶ Avoid performing installation and mainten-
ance work under direct sunlight.
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in
the morning.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 3
1 Safety
▶ Wear suitable safety gloves.
1.2.7 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.
1.2.8 Material damage caused by a highpressure cleaner
High-pressure cleaners may damage the
collectors due to the extremely high pressure.
▶ Never clean the collectors with a high-
pressure cleaner.
1.2.9 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.
1.2.10 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 anti-
freeze tester.
1.2.11 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.
1.2.13 Material damage due to overvoltage
Overvoltage may damage the solar plant.
▶ Earth the solar circuit to provide equipoten-
tial bonding and overvoltage protection.
▶ Secure earthing pipe clamps to the pipes.
▶ Bond the earthing pipe clamps to a busbar
using 16 mm² copper cable.
1.2.14 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.
1.2.15 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.
1.3 Intended use
There is a risk of injury or death to the user or
others, or of damage to the product and other
property in the event of improper use or use
for which it is not intended.
Vaillant auroTHERM VFK flat collectors are
used for solar heating support and for solarsupported hot water generation.
The collectors must only be operated with
Vaillant ready-mixed solar fluid. Passing
heating water or hot water directly through
the collectors constitutes improper use.
1.2.12 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.
4 Installation manual auroTHERM, auroTHERM plus 0020100571_03
Vaillant auroTHERM VFK flat 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.
Intended use includes the following:
– observance of accompanying operating,
installation and servicing instructions for
Safety 1
the product and any other system components
– compliance with all inspection and main-
tenance conditions listed in the instructions.
Installation of the collector in or on a vehicle
is not permissible and is considered improper. Units that are not classed as vehicles
are those that are installed in a fixed and
permanent location (known as "fixed
installation").
Any other use that is not specified in these
instructions, or use beyond that specified in
this document shall be considered improper
use. Any direct commercial or industrial use
is also deemed to be improper.
Caution.
Improper use of any kind is prohibited.
1.4 Regulations (directives, laws,
standards)
1.4.1 Regulations (directives, laws,
standards)
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 installa-
tions.
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 recom-
mendations 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 cent-
ral heating systems for domestic premises.
Note: only up to 45 kW
– BS. 6880 Low temperature hot water heat-
ing systems of output greater than 45 kW
– Part 1 Fundamental and design consid-
erations.
– Part 2 Selection of equipment
– Part 3 Installation, commissioning and
maintenance
– BS 6114: Expansion vessels using an in-
ternal 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
1.4.2 Accident prevention regulations
▶ Observe all regulations that ensure safe
work when mounting collectors at the appropriate heights.
1.4.3 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
0020100571_03 auroTHERM, auroTHERM plus Installation manual 5
1 Safety
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 (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.
1.5 CE label
The CE label shows that the products comply
with the basic requirements of the applicable
directives as stated on the identification plate.
The declaration of conformity can be viewed
at the manufacturer's site.
6 Installation manual auroTHERM, auroTHERM plus 0020100571_03
Notes on the documentation 2
CSTBat
CSTBat
CSTBat
Serial-No.
2 Notes on the documentation
2.1 Observing other applicable documents
▶ You must observe all the operating and installation in-
structions included with the system components.
2.2 Storing documents
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.
2.3 Applicability of the instructions
These instructions apply for the following only:
Collector types and article numbers
VFK 145/2 H
VFK 145/2 V
VFK 155 H
VFK 155 V
0010004457, 0010008899
0010004455, 0010008898
0010013174
0010013173
2.4 Name
In this manual, flat collectors are referred to as collectors.
3 Description of the unit
Information on the identification plate
VFK 145/2 H
VFK 145/2 V
VFK 155 H
VFK 155 V
VFK Vaillant flat collector
145 (155) Collector output
/2 Unit generation
H Horizontal design
V Vertical design
Flat plate collector Flat collector
A
G
V
F
m Weight
A Dimensions
Q
max
tstgf Stagnation temperature
Pmax Max. permissible operating
Meaning
Type designation
Gross area
Liquid volume
Max. output
pressure
Bar code with serial number,
The 7th to 16th digits of the
serial number form the article
number
3.3 Purpose of the unit
The collectors are used for solar heating support as well as
for solar-supported hot water generation.
3.1 Type overview
– VFK 145/2 H
– VFK 155 H
– VFK 145/2 V
– VFK 155 V
3.2 Information on the identification plate
Information on the identification plate
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.
VFK 155 H and VFK 155 V
only:
CSTBat:
The collectors have been
successfully tested according
to the rules and requirements
for the CSTBat.
Read the installation manual.
4 On-roof fitting and installation
▶ When fitting and installing the collectors, you must ob-
serve the chapter "Safety".
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.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 7
4 On-roof fitting and installation
1
9
7
5
2
10
13
11
12
10
3
6
8
14
15
4
4.1.1.2 Checking the scope of delivery
List of materials for on-roof installation
1 Rail mounting set, vertical, 2 units
Rail mounting set, horizontal, 2 units
2 Flow (outlet with opening for collector sensor) from set of
hydraulic connections, 1 unit
3 Roof bracket type P (for pantile) from the basic set,
4 units
Roof bracket type P (for tile) from extension set, on top of
each other, 2 units
4 Roof bracket type S (for beaver tail, etc.) from the basic
set, 4 units
Roof bracket type S (for beaver tail, etc.) from extension
set, on top of each other, 2 units
5 Roof bracket type S, flat, (for beaver tail, etc.) from the
basic set, 4 units
Roof bracket type S, flat (for beaver tail, etc.) from extension set, on top of each other, 2 units
6 Hanger bolt fastening set from the basic set, 4 units
Hanger bolt fastening set from extension set, on top of
each other, 2 units
7 Hydraulic connections from hydraulic extension set,
2 units
8 Clamp from hydraulic extension set, 4 units
9 Return (inlet) from hydraulic connections set, 1 unit
10 Top and bottom plugs (with vent opening) from set of
hydraulic connections, 2 units
11 Rail connector from hydraulic extension set, 2 units
12 Long base, hook type P, 4 units
13 auroTHERM VFK 145/2 V collector, 1 unit
auroTHERM VFK 145/2 H collector, 1 unit
auroTHERM VFK 155 V collector, 1 unit
auroTHERM VFK 155 H collector, 1 unit
14 Clamp from hydraulic connections set, 4 units
15 Pipe connector (only for horizontal collector), 1 unit
▶ Use the illustration to check that the installation sets are complete.
Note
Not all roof bracket types are available in all countries.
8 Installation manual auroTHERM, auroTHERM plus 0020100571_03
On-roof fitting and installation 4
1
3
4
2
145...
1
12
11
2
...
1
7
6
2
...
8
14
13
9
...
4.1.1.3 Transporting collectors
1. To protect the collectors against damage, always transport them 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.
▶ For the hydraulic connection of the collectors, select one
of the four variants shown in the illustration.
▶ Ensure that the solar fluid always flows through the col-
lectors from the bottom to the top.
Conditions: Number of collectors: 1 … 5
Conditions: Number of collectors: ≥ 13
▶ Always connect as many collectors as possible in series.
▶ Set up several parallel connector rows.
▶ Connect the collector rows hydraulically in parallel.
▶ 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
pipe length in the flow and return (Tichelmann system), in
order to avoid pressure losses in the connection pipes.
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.
▶ Configure the hydraulic connections on top of each other
on one side.
Conditions: Number of collectors: 6 … 12
▶ To guarantee a complete flow through the collector field,
arrange the hydraulic connections diagonally.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 9
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.
4 On-roof fitting and installation
4.1.5 Putting together components
Conditions: Array configuration: Adjacent
▶ Use the following table to put together the components for installation.
Collector
position
Horizontal
Vertical
Components
Hydraulic installation set 1
Hydraulic connection set − 1 2 3 4 5 6 7 8 9
Bracket set 1 type P
Bracket set 2, type S
Bracket set 2 type S flat
Bracket set 3 hanger bolts
Horizontal rail, anodised 1 2 3 4 5 6 7 8 9 10
Hydraulic installation set 1
Hydraulic connection set − 1 2 3 4 5 6 7 8 9
Bracket set 1 type P
Bracket set 2, type S
Bracket set 2 type S flat
Bracket set 3 hanger bolts
Vertical rail, anodised 1 2 3 4 5 6 7 8 9 10
Number of collectors: 1 2 3 4 5 6 7 8 9 10
Required quantity
1 2 3 5 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
Conditions: Array configuration: On top of each other
▶ Use the following table to put together the components for installation.
Collector
position
Horizontal
Vertical
Components
Hydraulic installation set 1 1 − − − − − − − −
Hydraulic connection set − 1 − − − − − − − −
Bracket set 1 type P
Bracket set 2, type S
Bracket set 2 type S flat
Bracket set 3 hanger bolts
Bracket extension set 1 type P
Bracket extension set 2, type S
Bracket extension set 2 type S flat
Bracket extension set 3 hangar screws
Horizontal rail, anodised 1 2 − − − − − − − −
Hydraulic installation set 1 2 − − − − − − − −
Bracket set 1 type P
Bracket set 2, type S
Bracket set 2 type S flat
Bracket set 3 hanger bolts
Bracket extension set 1 type P
Bracket extension set 2, type S
Bracket extension set 2 type S flat
Bracket extension set 3 hanger bolts
Vertical rail, anodised 1 2 − − − − − − − −
Number of collectors: 1 2 3 4 5 6 7 8 9 10
Required quantity
1 1 − − − − − − − −
− 1 − − − − − − − −
1 1 − − − − − − − −
− 1 − − − − − − − −
10 Installation manual auroTHERM, auroTHERM plus 0020100571_03
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 max-
imum 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 1.1
12 1.0 1.2
13 1.0 1.2 1.3
14 1.0 1.2 1.4
15 1.0 1.2 1.4 1.5
16 1.0 1.2 1.4 1.6
17 1.0 1.2 1.4 1.6 1.7
18 1.0 1.2 1.4 1.6 1.8
l
[m]
5 6 7 8 9 10 11 12 13 14 15
10 1.0
11 1.0 1.1
12 1.0 1.2
13 1.0 1.2 1.3
14 1.0 1.2 1.4
15 1.0 1.2 1.4 1.5
16 1.0 1.2 1.4 1.6
17 1.0 1.2 1.4 1.6 1.7
18 1.0 1.2 1.4 1.6 1.8
19 1.0 1.2 1.4 1.6 1.8 1.9
20 1.0 1.2 1.4 1.6 1.8 2.0
h [m]
h [m]
▶ When installing the roof brackets, observe the calculated
edge clearances.
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).
b Building width
h Building height
l Building length
▶ Calculate the building width w, building height h and
building length l.
▶ The values for the edge clearances to be observed, e
and e
0020100571_03 auroTHERM, auroTHERM plus Installation manual 11
can be found in the following tables.
long
short
4 On-roof fitting and installation
n
1245 * / 1220 **
200 - 300
200 - 300200 - 300
200 - 300
1460 - 1660
2045 * / 2020 **
200 - 300
200 - 300200 - 300
200 - 300
660 - 860
1245 * / 1220 **
2500 * / 2480 **
200 - 300
1460 - 1660
1
3
2
4.1.8.1
Conditions: Collector position: Horizontal
Adjacent array configuration
▶ Define the clearances of the roof brackets.
▶ Ensure that the roof brackets have sufficient play.
– Pre-installation dimension (*): = Finished installation
dimension (**) + 20-25 mm
4.1.8.2 Array configuration on top of each
other
Conditions: Collector position: Horizontal
Conditions: Collector position: Vertical
▶ Define the clearances of the roof brackets.
– Pre-installation dimension (*): = Finished installation
dimension (**) + 20-25 mm
4.2 Carrying out the installation
The installation steps and notes in this manual apply to both
collector positions and 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)
▶ Define the clearances of the roof brackets.
– Pre-installation dimension (*): = Finished installation
dimension (**) + 20-25 mm
12 Installation manual auroTHERM, auroTHERM plus 0020100571_03
1 Lower roof bracket
2 Top roof bracket
3 Middle roof bracket
On-roof fitting and installation 4
A
2
1
B
5 mm
1
2
3
4
5
6
A
B
1
3
2
1. Use the top, middle and lower type P roof brackets
shown.
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
▶ Adjust the roof bracket to the height of the pantiles, so
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.
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).
▶ Define the clearances of the roof brackets. (→ Page 12)
▶ 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.
▶ Undo the top bolt until the height of the roof bracket can
be adjusted (3).
– Working materials: SW 13 spanner
Conditions: Fastening type: To roof batten
▶ Define the clearances of the roof brackets. (→ Page 12)
▶ 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.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 13
4 On-roof fitting and installation
4
5
6
A
2
1
4
3
2
1
4
3
▶ 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.
▶ 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)
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)
1. Define the clearances of the roof brackets. (→ Page 12)
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.
1. Define the clearances of the roof brackets. (→ Page 12)
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).
14 Installation manual auroTHERM, auroTHERM plus 0020100571_03
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).
On-roof fitting and installation 4
1
2
3
6
4
5
n
1
2
2
1
4.2.1.4 Installing the hanger bolt type
1. Define the clearances of the roof brackets. (→ Page 12)
2. At the corresponding position, drill a hole in the pantile
(1).
3. Tighten the hanger bolt onto the rafters through the
pantile(2).
4.2.2 Installing collectors
4.2.2.1
Adjacent array configuration
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 moves, 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
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.
2. Use the clamping elements to secure the top and lower
mounting rail for the first collector to the roof brackets
((1) and (2)).
3. Position the lower rail as far as possible downwards on
the roof brackets.
4. Position the top rail on the roof brackets with the pre-
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.
installation clearance dimension from the lower rail (→
chapter "Defining roof bracket clearances").
Taring mounting rails
5. Secure the mounting rails horizontally.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 15
4 On-roof fitting and installation
1
A
B
1
A
B
6. Compensate for any height differences by moving the
clamping elements.
7. To do this, pull the clamping element upwards (1),
move it (2) and release it so that it engages.
Laying and hooking 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.
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in
the morning.
▶ Wear suitable safety gloves.
11. Insert the hydraulic connectors into the provided mounting openings at the side of the previously installed collector until they reach the stop position.
12. Secure the connectors with the clamps, slide the clamp
into the guide from the top for the top connection and
from the bottom for the lower connection.
Connecting mounting rails
13. Insert the connecting elements laterally into the mounting rails until you feel them engage (1).
14. Slide the mounting rails of the next collector onto the
mounting rails of the previously installed collector (1).
15. Secure the mounting rails for the next collector onto the
roof brackets using the clamping elements.
16. Tare the mounting rails. (→ Page 15)
Installing additional collectors
8. Lay the lower edge of the first collector in the lower
mounting rail and hook it in at the clamping elements
(1).
9. Ensure that the top clamping block of the clamping element is positioned above the edge of the collector.
10. Tighten the clamping elements of the lower mounting
rail.
– Working materials: SW 13 spanner
Fitting connectors
Caution.
Risk of damage to the collector.
Improper installation of the pipe connectors
may damage the collector.
▶ Ensure that the clamps (A) slide into the
grooves of the pipe connector (B).
17. Lay the lower edge of the next collector in the lower
mounting rail and hook it in at the clamping elements.
18. Ensure that the top clamping block of the clamping element is above the edge of the collector.
19. Slide the collector to the first collector, observing the
hydraulic connectors.
Caution.
Risk of damage to the collector.
Improper installation of the pipe connectors
may damage the collector.
▶ Ensure that the clamps (A) slide into the
grooves of the pipe connector (B).
20. Secure the hydraulic connectors with the clamps.
21. Tighten the clamping elements of the lower mounting
rail.
– Working materials: SW 13 spanner
16 Installation manual auroTHERM, auroTHERM plus 0020100571_03
On-roof fitting and installation 4
1
1
2
2
1
Completing collector rows
Conditions: Not all collectors of a row have been installed yet.
▶ Fit the connectors. (→ Page 16)
▶ Connect the mounting rails. (→ Page 16)
▶ Install an additional collector. (→ Page 16)
Positioning the top mounting rails
22. Slide all the top mounting rails until they are flush with
the lower collectors, one after the other (1).
23. Ensure that the edges of the mounting rails grip around
the collectors.
24. Slide the clamping elements down to the lower collectors, one after the other (1).
25. Ensure that the clamping block of the clamping elements lies over the collector edges.
26. Tighten the clamping elements of the top mounting
rails.
– Working materials: SW 13 spanner
Completing installation of the collectors
27. Tighten all remaining clamping elements.
– Working materials: SW 13 spanner
28. Check for proper tensioning by shaking the clamping
blocks.
29. If a clamping block can be moved, tighten the nut
again.
Note
Mounting rails and clamping elements cannot
be moved at the same time.
Note
With array configuration on top of each other
and with a vertical collector position, the
collectors must be hydraulically balanced
(Tichelmann System).
Installing mounting rails
2. Use the clamping elements to secure the top and lower
mounting rail for the first collector to the roof brackets
((1) and (2)).
3. Position the lower rail as far as possible downwards on
the roof brackets.
4. Position the top rail on the roof brackets with the preinstallation clearance dimension from the lower rail (→
chapter "Defining clearances of the roof brackets").
Taring mounting rails
4.2.2.2 Array configuration on top of each
other
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 moves, tighten the nut
again.
1. Install the collectors on the roof as specified in the fol-
lowing sections.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 17
5. Secure the mounting rails horizontally.
6. Compensate for any height differences by moving the
clamping elements.
7. To do this, pull the clamping element upwards (1),
move it (2) and release it so that it engages.
4 On-roof fitting and installation
1
2
1
1
A
B
Laying and hooking 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.
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in
the morning.
▶ Wear suitable safety gloves.
8. Lay the lower edge of the first collector in the lower
mounting rail and hook it in at the clamping elements
(1).
9. Ensure that the top clamping block of the clamping element is positioned above the edge of the collector.
10. Tighten the clamping elements of the lower mounting
rail.
– Working materials: SW 13 spanner
Positioning the top mounting rail
Conditions: The last installed collector is the top collector of a column.
▶ Slide the appropriate clamping elements onto the mount-
ing rail (II).
▶ Ensure that the clamping block of the clamping elements
lies over the collector edge.
Installing the next collector
Conditions: Not all collectors of a column have been installed yet.
▶ Repeat all installation steps with the next higher col-
lector.
▶ Ensure that both mounting rails are installed between
the collectors as shown in the illustration ((1) and (2)).
▶ Ensure that the clamping blocks between the collectors
grip around both mounting rails.
Fitting connectors
11. Slide the top mounting rail until it is flush with the col-
lector.
12. Ensure that the edge of the mounting rail grips around
the collector.
Conditions: The last installed collector is not the top collector of a column.
▶ Slide the appropriate clamping elements onto the mount-
ing rail (I).
▶ Ensure that the clamping block of the clamping elements
lies over the collector edge.
18 Installation manual auroTHERM, auroTHERM plus 0020100571_03
13. Connect the collectors with the pipe connectors (1).
Caution.
Risk of damage to the collector.
Improper installation of the pipe connectors
may damage the collector.
▶ Ensure that the clamps (A) slide into the
grooves of the pipe connector (B).
14. Secure the pipe connectors with the clamps.
Completing installation of the collectors
15. Tighten all remaining clamping elements.
– Working materials: SW 13 spanner
16. Check for proper tensioning by shaking the clamping
blocks.
17. If a clamping block can be moved, tighten the nut
again.
4.2.3 Installing hydraulic connections
n
1
2
3
4
1
2
3
4
Caution.
Leak caused by incorrect accessories.
Incorrect accessories may result in a leak in
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.
The hydraulic connections must be installed differently according to the array configuration of the collectors (adjacent
or on top of each other).
4.2.3.1
1. Install the hydraulic connections on the collectors, as
specified in the following sections.
Adjacent array configuration
Note
If you connect six or more collectors one
behind the other, you must arrange the hydraulic connections diagonally in order to
force complete flow.
If you connect six or more collectors one
behind the other, you must arrange the hydraulic connections diagonally in order to
force complete flow. (→ Page 9)
On-roof fitting and installation 4
▶ Install the two plugs with vent openings on the other side
of the collector field at the top and bottom of the collector
((3) and (4)).
▶ Secure the two plugs with the clamps ((3) and (4)).
▶ Connect the collector flow and return to the system with
the connection pipes.
▶ Check the connections for leaks.
Conditions: Number of collectors: ≥ 6
Conditions: Number of collectors: 1 … 5
▶ Insert the return (inlet) on one side in the lower lateral
opening (2).
▶ Secure the return with the clamp (2).
▶ Install the first plug with vent opening at the top lateral
opening (1).
▶ Secure the first plug with the clamp (1).
▶ Connect the flow (outlet with opening for collector
sensor) at the top (1).
▶ Secure the flow with the clamp (1).
▶ Remove the red plug from the opening for the collector
sensor.
▶ Insert the VR 11 collector sensor into the opening (1).
▶ Use a cable tie to secure the VR 11 collector sensor
against slipping out.
▶ Connect the return (inlet) at the bottom (2).
▶ Secure the return with the clamp (2).
▶ Insert the flow (outlet with opening for collector sensor)
diagonally opposite into the upper lateral opening (4).
▶ Secure the flow with the clamp (4).
▶ Remove the red plug from the opening for the collector
sensor.
▶ Insert the VR 11 collector sensor into the opening (4).
▶ Use a cable tie to secure the VR 11 collector sensor
against slipping out.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 19
4 On-roof fitting and installation
2
1
2
1
1. 2.
auroTHER
M
auroTHER
M
auroTHER
M
auroTHERM
auroTHERM auroTHERM
3.
4.
auroTHERM
auroTHER
M
auroTHERM
auroTHER
M
auroTHERM
auroTHER
M
123
456
▶ Install the second plug with vent opening at the lower
lateral opening (3).
▶ Secure the second plug with the clamp (3).
▶ Connect the collector flow and return to the system with
the connection pipes.
▶ Check the connections for leaks.
4.2.3.2 Array configuration on top of each
other
1. Connect the flow (outlet) at the top collector (1).
2. Remove the red plug from the opening for the collector
sensor.
3. Insert the VR 11 collector sensor into the opening (1).
4. Use a cable tie to secure the VR 11 collector sensor
against slipping out.
5. Secure the flow with the clamp (1).
6. Connect the return (inlet) at the lower collector (2).
7. Secure the return with the clamp (2).
4.3 Completing and checking the installation
4.3.1 Using the customer service card
1. Remove the packaging with the serial number sticker
from the transport packaging of the collector.
2. Remove the serial number sticker from the packaging.
3. Remove the customer service card from the hydraulic
installation set.
8. At the opposite side of each collector, install the two
plugs with the vent openings (1) and (2).
9. Secure all four plugs with the clamps (1) and (2).
10. Connect the collector flow and return to the system with
the connection tubes.
11. Check the connections for tightness.
20 Installation manual auroTHERM, auroTHERM plus 0020100571_03
4. Stick the sticker onto the first field in the customer service card.
5. Secure the customer service card in an easily visible
place near the solar system cylinder.
On-roof fitting and installation 4
4.3.2 Checking the installation
Use the following checklist to ensure that all work steps have been performed.
Note
After initial start-up, and in seasons with significant ambient temperature fluctuations, condensate may form in the
collector. This is normal.
Note
Reflections caused by irregularities of the glass are typical of the material.
Operations Yes No Comments
All hydraulic connections secured with clamps
Hydraulic connections routed correctly
Collector sensor VR 11 connected
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
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
0020100571_03 auroTHERM, auroTHERM plus Installation manual 21
5 Flat roof fitting and installation
4.3.3 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.
22 Installation manual auroTHERM, auroTHERM plus 0020100571_03
5.1.1.2 Checking the scope of delivery
1
7
3
2
9
8
10
12
11
4
5
6
Flat roof fitting and installation 5
List of materials for flat roof installation for vertical collectors
1 Rail mounting set, vertical
1 x set
2 Hydraulic connections from the sensor set
2 x connection
3 Frame set, vertical base
2 x set
5 Load plates from load plate set
8 plates
6 Hammer-head bolt and nut from load plate set
4 bolts and nuts
7 Hydraulic inter-connector from the sensor set
2 x connector
List of materials for flat roof installation for horizontal collectors
1 Rail mounting set, horizontal
1 x set
2 Hydraulic connections from the sensor set
2 x connection
4 Frame set, horizontal base
2 x set
5 Load plates from load plate set
8 plates
6 Hammer-head bolt and nut from load plate set
4 bolts and nuts
8 Bolt anchor
4 x anchor
9 Clamp from the sensor set
4 x clamp
10 Plug from the sensor set
2 x plug
11 Rail connector from the sensor set
2 x connector
12 auroTHERM VFK 145/2 V collector
1 x collector
auroTHERM VFK 155 V collector
1 x collector
8 Bolt anchor
4 x anchor
9 Clamp from the sensor set
4 x clamp
10 Plug from the sensor set
2 x plug
12 auroTHERM VFK 145/2 H collector
1 x collector
auroTHERM VFK 155 H collector
1 x collector
▶ Use the image to check that the installation sets are complete.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 23
5 Flat roof fitting and installation
1
3
4
2
145...
1
12
11
2
...
1
7
6
2
...
8
14
13
9
...
5.1.1.3 Transporting collectors
1. To protect the collectors against damage, always transport them horizontally.
2. Transport the collectors to the roof using suitable aids.
5.1.2 Complying with clearances and installation
clearances
During storms, turbulence (swirling) causes strong wind
forces to 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.
▶ For the hydraulic connection of the collectors, select one
of the four variants shown in the illustration.
▶ Ensure that the solar fluid always flows through the col-
lectors from the bottom to the top.
Conditions: Number of collectors: 1 … 5
▶ Configure the hydraulic connections on top of each other
on one side.
Conditions: Number of collectors: 6 … 12
Conditions: Number of collectors: ≥ 13
▶ Always connect as many collectors as possible in series.
▶ Set up several parallel collector rows.
▶ Connect the collector rows hydraulically in parallel.
▶ 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
pipe length in the flow and return (Tichelmann system), in
order to avoid pressure losses in the connection pipes.
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.
▶ To guarantee a complete flow through the collector field,
arrange the hydraulic connections diagonally.
24 Installation manual auroTHERM, auroTHERM plus 0020100571_03
▶ Commission a roofer to prepare the roof duct.
5.1.5 Selecting the installation variant
A
B
C
▶ Make a selection from the three available installation
variants:
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.
Flat roof fitting and installation 5
0020100571_03 auroTHERM, auroTHERM plus Installation manual 25
5 Flat roof fitting and installation
5.1.6 Putting together components
▶ Use the following table to put together the components for installation.
Collector position Number of collectors: 1 2 3 4 5 6 7 8 9 10
Components Required quantity
Load plate set (optional) 2 3 4 5 6 7 8 9 10 11
Hydraulic installation set 1
Horizontal
Vertical
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.
Hydraulic connection set − 1 2 3 4 5 6 7 8 9
Horizontal rack 2 3 4 5 6 7 8 9 10 11
Horizontal rail, aluminium 1 2 3 4 5 6 7 8 9 10
Load plate set (optional) 2 3 4 5 6 7 8 9 10 11
Hydraulic installation set 1
Hydraulic connection set − 1 2 3 4 5 6 7 8 9
Vertical rack 2 3 4 5 6 7 8 9 10 11
Vertical rail, aluminium 1 2 3 4 5 6 7 8 9 10
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.
rack must consist of material capable of
screw connections.
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.
26 Installation manual auroTHERM, auroTHERM plus 0020100571_03
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.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 27
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
28 Installation manual auroTHERM, auroTHERM plus 0020100571_03
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
0020100571_03 auroTHERM, auroTHERM plus Installation manual 29
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
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
30 Installation manual auroTHERM, auroTHERM plus 0020100571_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
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
0020100571_03 auroTHERM, auroTHERM plus Installation manual 31
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°
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
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
297
267
406
372
352
319
516
479
372
339
477
441
460
424
607
566
421
387
522
485
532
494
664
621
To secure only against lifting
(if secured/anchored against
sliding)
30
179
30
246
30
212
35
315
30
225
30
291
30
280
45
372
37
256
35
325
37
325
52
407
32 Installation manual auroTHERM, auroTHERM plus 0020100571_03
Flat roof fitting and installation 5
L
1
L
2
B
D
E
A
C
F
C
D
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
▶ Define the rack clearances.
Number of collectors
[mm]
1 970
2 2200
3 3463
Vertical
1)
Dimension applies to 20° position of the sun and must be checked according to the geographical location.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 33
4 4726
5 5989
6 7252
7 8515
30° 45° 60°
A
B
[mm]
1280 2927 1731 3666 2065 4019 2034
1)
F
[mm]B[mm]
1)
F
[mm]B[mm]
F
[mm]
1)
C
[mm]D[mm]E[mm]
− −
1100
−
1263
5 Flat roof fitting and installation
30° 45° 60°
Number of collectors
A
[mm]
B
[mm]
1)
F
[mm]B[mm]
8 9778
Vertical
9 11041
1280 2927 1731 3666 2065 4019 2034 1100 1263
10 12304
1 1770
2 3800
3 5863
4 7926
Horizontal
5 9989
6 12052
881 1897 1165 2276 1373 2446 1304
7 14115
8 16178
9 18241
10 20304
1)
Dimension applies to 20° position of the sun and must be checked according to the geographical location.
1)
F
[mm]B[mm]
F
[mm]
1)
C
[mm]D[mm]E[mm]
− −
1900
−
2063
34 Installation manual auroTHERM, auroTHERM plus 0020100571_03
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
people.
▶ 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.
Leak caused by destruction of the roof
skin.
In the event of destruction of the roof skin,
water can penetrate the building.
▶ Check the leak tightness of the roof skin
after tightening screw connections.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 35
5 Flat roof fitting and installation
2
3
1
▶ Restore the leak 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 racks using fastenings that are suitable for
underground use.
– Fastening material: Rust-proof
– Diameter of the fastenings: ≥ 10 mm
▶ Carry out an extraction test.
– Extraction force of the anchor bolt: ≥ 9 kN
▶ Mount as many racks as you need to hold the collectors.
Conditions: Type of installation: Floating installation (with load plates)
▶ Connect two load plates as shown in the illustration.
▶ Connect two additional load plates as shown in the illus-
tration.
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.
Preparing load plates
Caution.
Leak caused by 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 load plates,
and use non-slip building protection mats to protect the
roof skin.
▶ 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.
36 Installation manual auroTHERM, auroTHERM plus 0020100571_03
Screwing the rack onto load plates and aligning
▶ Take hold of the first rack already secured in the installa-
tion 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.
▶ 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.
Flat roof fitting and installation 5
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.
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.
▶ 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".
▶ Distribute the load weights evenly over the load plates.
Conditions: Type of installation: Floating installation (without load plates)
Preparing weights
Caution.
Leak caused by 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.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 37
5 Flat roof fitting and installation
1
2
3
▶ 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.
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.
▶ 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.
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 moves, tighten the nut
again.
1. Install the collectors on the roof as specified in the following sections.
Sliding on mounting rails
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.
38 Installation manual auroTHERM, auroTHERM plus 0020100571_03
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.
Flat roof fitting and installation 5
AB
50 - 200
1
2
1
1
1
2
Fitting mounting rails to several racks
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).
Connecting mounting rails
Hooking the collector in at the bottom
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.
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in
the morning.
▶ Wear suitable safety gloves.
13. Lay the collector with the lower edge in the profile of
the mounting rail (1). Ensure that the mounting rail (1)
surrounds the lower edge of the collector.
Securing the collector at the top
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
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.
12. Screw the brackets tightly onto the lower mounting
rails.
– Working materials: 5 mm Allen key
0020100571_03 auroTHERM, auroTHERM plus Installation manual 39
5 Flat roof fitting and installation
A
B
1
2
Installing hydraulic connectors
Caution.
Risk of damage to the collector.
Improper installation of the pipe connectors
may damage the collector.
▶ Ensure that the clamps (A) slide into the
grooves of the pipe connector (B).
18. Remove the delivery plugs from the mounting openings.
19. Insert the top (1) and bottom (2) pipe connectors into
the mounting openings until the stop.
20. Slide the clamps into the rails of the mounting openings
(2).
Installing additional collectors
A
1
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
Completing collector rows
Conditions: Not all collectors in a row have been installed yet.
▶ Install the hydraulic connectors. (→ Page 40)
▶ Install an additional collector. (→ Page 40)
5.2.3 Installing hydraulic connections
Caution.
Leak caused by incorrect accessories.
Incorrect accessories may result in a leak in
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.
1. Install the hydraulic connections on the collectors, as
specified in the following sections.
Note
If you connect six or more collectors one
behind the other, you must arrange the hydraulic connections diagonally in order to
force complete flow. (→ Page 9)
Conditions: Number of collectors: 1 … 5
B
21. Position the next collector on the lower mounting rail.
22. Slide the collector to the first collector.
Caution.
Risk of damage to the collector.
Improper installation of the pipe connectors
may damage the collector.
▶ Ensure that the clamps (A) slide into the
grooves of the pipe connector (B).
23. Secure the top and bottom hydraulic connectors with
the clamps ((1) and (2)).
24. Slide the second top mounting rail until it is flush with
the collector.
1
2
2
▶ Connect the flow (outlet with opening for collector
sensor) at the top (1).
▶ Secure the flow with the clamp (1).
▶ Remove the red plug from the opening for the collector
sensor.
▶ Insert the VR 11 collector sensor into the opening (1).
▶ Use a cable tie to secure the VR 11 collector sensor
against slipping out.
▶ Connect the return (inlet) at the bottom (2).
▶ Secure the return with the clamp (2).
40 Installation manual auroTHERM, auroTHERM plus 0020100571_03
1
2
1
2
1
1. 2.
auroTHER
M
auroTHER
M
auroTHER
M
auroTHERM
auroTHERM auroTHERM
3.
4.
auroTHERM
auroTHER
M
auroTHERM
auroTHER
M
auroTHERM
auroTHER
M
123
456
2
▶ Install the two plugs with vent openings on the other side
of the collector field at the top and bottom of the collector
((1) and (2)).
▶ Secure the two plugs with the clamps ((1) and (2)).
▶ Connect the collector flow and return to the system with
the connection tubes.
▶ Check the connections for tightness.
Conditions: Number of collectors: ≥ 6
Flat roof fitting and installation 5
▶ Install the second plug with vent opening at the lower
lateral opening (2).
▶ Secure the second plug with the clamp (2).
▶ Connect the collector flow and return to the system with
the connection tubes.
▶ Check the connections for tightness.
5.3 Completing and checking the installation
5.3.1 Using the customer service card
1. Remove the packaging with the serial number sticker
from the transport packaging of the collector.
2. Remove the serial number sticker from the packaging.
▶ Insert the return (inlet) on one side in the lower lateral
opening (2).
▶ Secure the return with the clamp (2).
▶ Install the first plug with vent opening at the top lateral
opening (1).
▶ Secure the first plug with the clamp (1).
3. Remove the customer service card from the hydraulic
installation set.
▶ Insert the flow (outlet with opening for collector sensor)
diagonally opposite into the top lateral opening (1).
▶ Secure the flow with the clamp (1).
▶ Remove the red plug from the opening for the collector
sensor.
▶ Insert the VR 11 collector sensor into the opening (1).
▶ Use a cable tie to secure the VR 11 collector sensor
against slipping out.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 41
4. Stick the sticker onto the first field in the customer service card.
5. Secure the customer service card in an easily visible
place near the solar system cylinder.
5 Flat roof fitting and installation
5.3.2 Checking installation
Use the following checklist to ensure that all work steps have been performed.
Note
After initial start-up, and in seasons with significant ambient temperature fluctuations, condensate may form in the
collector. This is normal.
Note
Reflections caused by irregularities of the glass are typical of the material.
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 secured with clamps
Hydraulic connections routed correctly
VR 11 collector sensor connected
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
☐ ☐
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
42 Installation manual auroTHERM, auroTHERM plus 0020100571_03
☐ ☐
☐ ☐
☐ ☐
Inspection and maintenance 6
5.3.3 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.
No. Maintenance work Interval
1 Checking collectors and connec-
tions for damage, dirt and lack of
tightness
2 Cleaning collectors Annually
3 Checking brackets and collector
components for firm seating
4 Check the pipe insulations for
damage
5 Replacing damaged pipe insula-
tions
6 Disposing of damaged pipe insula-
tions
Annually
Annually
Annually
Annually
Annually
Page
43
43
44
44
44
44
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 Procuring spare parts
The original components of the product were also certified
as part of the CE declaration of conformity. If you do not use
certified Vaillant original spare parts for maintenance or repair work, this voids the CE conformity of the product. We
therefore strongly recommend that you fit Vaillant genuine
spare parts. You can find information about the available
Vaillant original spare parts on the back page of these instructions, below the contact address.
▶ If you require spare parts for maintenance or repair work,
use only Vaillant genuine spare parts.
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 43)
3. Check the connections for leaks.
If the connections are not tight:
▶ Seal the leaking connections. (→ Page 44)
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.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 43
7 Troubleshooting
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.
6.8 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 44)
6.9 Replacing damaged pipe insulations
1. Put the solar plant temporarily out of operation
(→ Page 45).
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 Procuring spare parts
The original components of the product were also certified
as part of the CE declaration of conformity. If you do not use
certified Vaillant original spare parts for maintenance or repair work, this voids the CE conformity of the product. We
therefore strongly recommend that you fit Vaillant genuine
spare parts. You can find information about the available
Vaillant original spare parts on the back page of these instructions, below the contact address.
▶ If you require spare parts for maintenance or repair work,
use only Vaillant genuine spare parts.
7.2 Carrying out repairs
7.2.1 Replace leaking 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.
▶ 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 45).
2. Replace the leaking collectors.
3. Start up the solar plant again as described in the operating system instructions.
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 200 °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.
44 Installation manual auroTHERM, auroTHERM plus 0020100571_03
1. Put the solar plant temporarily out of operation
(→ Page 45).
2. Seal the leaking connections.
Decommissioning 8
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 45).
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.
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.
▶ 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 200 °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.
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.
▶ During transport from the roof, seal the
pipe connections of the collector with the
red plugs.
1. Undo the hydraulic connections.
2. Undo the brackets.
3. Remove the collectors from the roof.
4. Remove the hydraulic connections.
5. Drain the collector fully into a canister through two connections.
6. Close the collector connections.
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.
0020100571_03 auroTHERM, auroTHERM plus Installation manual 45
9 Customer service
▶ 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.
9 Customer service
To ensure regular servicing, it is strongly recommended
that arrangements are made for a Maintenance Agreement.
Please contact Vaillant Service Solutions (0207 022 0928)
for further details.
46 Installation manual auroTHERM, auroTHERM plus 0020100571_03
Technical data 10
10 Technical data
10.1 Technical data table
Unit VFK 145/2 H/V VFK 155 H/V
Absorber type − Serpentine horiz./vert.
Dimensions of vertical collectors (L x W x H) mm 2033 x 1233 x 80
Dimensions of horizontal collectors (L x W x H) mm 1233 x 2033 x 80
Weight kg 38
Liquid volume l
Max. permissible operating pressure bar 10
Shutdown temperature °C 170 200
Gross area m² 2.51
Aperture surface area m² 2.35
Absorber surface area m² 2.33
Absorber mm Aluminium (vacuum-coated) 0.4
x 1178 x 1978
Coating −
Glass thickness mm 3.2
Glass type
Transmission % τ = 91 τ = 95
Back wall insulation
Edge insulation − None Available
Efficiency η
Heat loss factor k
Heat loss factor k
Max. wind load kN/m² 1.6
Max. standard snow load kN/m² 5.0
On-roof installation angle ° 15 - 75
Flat roof installation angle ° 30, 45, 60
0
1
2
− Solar safety glass (prismatic
structure)
mm
W/m²K
kg/m³
%
W/m²K
W/m²K²
79.8 (H)
79.0 (V)
3.79 (H)
3.72 (V)
0.016 (H)
0.016 (V)
2.16 (H)
1.85 (V)
Aluminium (vacuum-coated) 0.5
x 1178 x 1978
High selective (blue)
α = 95%
ε = 5%
Solar safety glass (anti-reflective
coating)
40
λ = 0.035
ρ = 55
84.5 (H)
85.0 (V)
3.98 (H)
3.77 (V)
0.013 (H)
0.015 (V)
0020100571_03 auroTHERM, auroTHERM plus Installation manual 47
10 Technical data
80
2033
1178
1233
1978
66,566,5
1100
1223
5
1178
7979
1875
80
80
5
1233
1223
2033
1978
10.2 Dimensions
48 Installation manual auroTHERM, auroTHERM plus 0020100571_03
Index
Index
A
Applicability
Manual.............................................................................7
Article number .......................................................................7
B
Ballast load (floating installation)
Determining ................................................................... 26
Brackets
Checking........................................................................ 44
C
CE label.................................................................................6
Checklist
Installing...................................................................21, 42
Clearances
Complying with .......................................................... 9, 24
Collector components
Checking........................................................................ 44
Collectors
Checking........................................................................ 43
Cleaning.........................................................................43
Disposal.........................................................................44
Installing.............................................................15, 17, 38
Removing.......................................................................45
Replacing....................................................................... 44
Storing ....................................................................... 7, 22
Transporting...............................................................9, 24
Components
Putting together ....................................................... 10, 26
Connection
Selecting....................................................................9, 24
Connection rules ............................................................. 9, 24
Connection schemas....................................................... 9, 24
Connections
Checking........................................................................ 43
Sealing........................................................................... 44
D
Decommissioning................................................................ 45
Disposal
Collectors....................................................................... 45
Packaging................................................................22, 43
Solar fluid....................................................................... 45
F
Final work
Installing...................................................................21, 42
H
Hydraulic connections
Installation......................................................................19
Installing.........................................................................40
I
Identification plate ................................................................. 7
Installation clearances
Complying with .......................................................... 9, 24
Installing
Checking.................................................................. 21, 42
Intended use..........................................................................4
L
Leaking connections
Sealing........................................................................... 44
M
Maintenance
Preparing .......................................................................43
Maintenance plan ................................................................ 43
P
Packaging
Disposal...................................................................22, 43
Pipe insulations
Checking........................................................................ 44
Disposal................................................................... 44–45
Replacing................................................................. 44–45
Purpose
Unit .................................................................................. 7
R
Rack
Defining clearances ....................................................... 33
Installing.........................................................................35
Recycling
Collectors....................................................................... 45
Packaging................................................................22, 43
Solar fluid....................................................................... 45
Regulations ........................................................................... 5
Roof bracket
Defining edge clearances .............................................. 11
Determining the number ................................................ 11
Roof duct
Preparing ...................................................................9, 24
S
Scope of delivery
Checking.................................................................... 8, 23
Select installation variant, flat roof....................................... 25
Spare parts.................................................................... 43–44
T
Technical data ................................................................... 47
Dimensions....................................................................48
Type overview .......................................................................7
U
Unit
Purpose ........................................................................... 7
Use, intended ........................................................................4
0020100571_03 auroTHERM, auroTHERM plus Installation manual 49
0020100571_03 07.07.2014
Vaillant Ltd
Nottingham Road Belper Derbyshire DE56 1JT
Telephone 0330 100 3461 Vaillant Service Solutions 0330 100 3461
Spares Technical Enquiries 017 73 59 66 15
info@vaillant.co.uk technicalspares@groupservice.co.uk
www.vaillant.co.uk
© These instructions, or parts thereof, are protected by copyright and may be reproduced or distributed only with
the manufacturer's written consent.
Loading...