Page 1
Installation and
maintenance instructions
Vacuum tube
collectors
6 720 647 042-00.1ITL
SKR6.1R, SKR12.1R
Rooftop installation
6 720 647 057 (2011/05) GB
For contractors
Read carefully
prior to installation
and maintenance.
Page 2
Table of contents
Table of contents
1 Key to symbols and safety instructions . . . . . 3
1.1 Explanation of symbols . . . . . . . . . . . . . . . . . 3
1.2 General safety information . . . . . . . . . . . . . . 3
2 Product information . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Components and instructions . . . . . . . . . . . 4
2.2 Correct usage . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 EU Declaration of Conformity . . . . . . . . . . . 5
2.4 Standard delivery . . . . . . . . . . . . . . . . . . . . . 6
2.4.1 Mounting bracket . . . . . . . . . . . . . . . . . . . . . 6
2.4.2 Installation set . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4.3 Connection sets (hydraulic connection) . . . 7
2.4.4 Collector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5 Data plate . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.6 Specification . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Before installation . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Determining space requirements . . . . . . . . 9
4.2 Planning the hydraulic connection . . . . . . 10
4.3 General notes . . . . . . . . . . . . . . . . . . . . . . . 11
4.4 Required tools and accessories . . . . . . . . 11
4.5 Lightning protection . . . . . . . . . . . . . . . . . . 11
4.6 Installation order . . . . . . . . . . . . . . . . . . . . . 11
7 Rail installation . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1 Installing the vertical rails . . . . . . . . . . . . . . 20
7.2 Installing horizontal rails and clamps . . . . . 21
7.3 Installing the clampings onto the
vertical rails . . . . . . . . . . . . . . . . . . . . . . . . . .22
8 Installing the collectors . . . . . . . . . . . . . . . . . . 23
8.1 Fitting the first collector . . . . . . . . . . . . . . . 23
8.2 Fitting the second collector . . . . . . . . . . . . 24
8.3 Installing the collector sensor . . . . . . . . . . 24
8.4 Fitting the bridging set (accessory) . . . . . . 25
9 Hydraulic connection . . . . . . . . . . . . . . . . . . . . 26
10 Final steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10.1 Checking the installation . . . . . . . . . . . . . . 28
10.2 Pressure filling, flushing, venting . . . . . . . . 28
10.3 Adjusting the pre-charge pressure of
the expansion vessel . . . . . . . . . . . . . . . . . .28
10.4 Determining and setting the operating
pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
10.5 Adjusting the flow rate . . . . . . . . . . . . . . . . 28
10.6 Insulating piping . . . . . . . . . . . . . . . . . . . . . 28
11 Replacing individual tubes . . . . . . . . . . . . . . . 29
5 Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6 Fitting the mounting bracket . . . . . . . . . . . . . 13
6.1 Determining distances . . . . . . . . . . . . . . . . 13
6.1.1 Vertical distances for the mounting
brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.1.2 Horizontal distances for the mounting
brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2 Installing mounting brackets on roof
tile roofs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.3 Installing mounting brackets on plain
tile roofs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.4 Installing mounting brackets on roofs
with monk/nun tiles . . . . . . . . . . . . . . . . . . . 17
6.5 Installing mounting brackets on slate
roofs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
12 Environmental protection/disposal . . . . . . . 30
13 Maintenance/inspection . . . . . . . . . . . . . . . . . 31
2
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 3
Key to symbols and safety instructions
1 Key to symbols and safety instructions
1
1.1 Explanation of symbols
Warning symbols
Safety instructions in this document are
framed and identified by a warning triangle
which is printed on a grey background.
Electrical hazards are identified by a lightning
symbol surrounded by a warning triangle.
Signal words indicate the seriousness of the hazard in
terms of the consequences of not following the safety
instructions.
• NOTICE indicates possible damage to property or
equipment, but where there is no risk of injury.
• CAUTION indicates possible injury.
• WARNING indicates possible severe injury.
• DANGER indicates possible risk to life.
Important information
Notes contain important information in cases
where there is no risk of personal injury or
material losses and are identified by the
symbol shown on the left. They are bordered
by horizontal lines above and below the text.
1.2 General safety information
Danger of falling when working on the roof
B If there are no general anti-fall safety devices, wear
personal protective clothing or safety equipment.
B Take appropriate action to prevent accidents during all
work on roofs.
B Observe accident prevention regulations.
Danger when installing collectors above walk/
driveways
Should the glass tubes be shattered, there is a risk of
injury through glass splinters if anyone is below the
collector array.
B Avoid installation above walkways.
Risk of burns on the collectors
Some parts may cause burns, if the vacuum tube collector
and installation materials are exposed to solar radiation for
prolonged periods of time.
B Wear personal safety equipment.
B Protect the collector and installation materials from
solar radiation (e.g. with a tarpaulin).
Installation
Installation and maintenance must only be carried out by
an authorised contractor. Never modify components.
Additional symbols
Symbol Meaning
B a step in an action sequence
Æ a reference to a related part in the
document or to other related documents
• a list entry
– a list entry (second level)
Tab. 1
B Please read these instructions carefully.
B Install the installation set only on roofs with sufficient
load-bearing capacity. If necessary, consult a structural
engineer and/or roofer.
B Collectors must never be walked on and must never be
subject to loads from other objects.
B After completing the installation, check that the
installation set and the collectors are securely
positioned.
Function checks
The operator is responsible for the safety and
environmental compatibility of the system.
B Customers are recommended to arrange a
maintenance and inspection contract with an approved
contractor.
B Only original spare parts must be used.
Instructing the customer
B Instruct customers in the functions and operation of the
appliance as well as the operation of the system as a
whole.
B Inform customers that they must not carry out any
modifications or repairs.
B Hand over the installation instructions to the customer
and inform him/her that these are to be retained and
passed on to any future owner/user.
SKR6.1R, SKR12.1R - Subject to technical modifications.
3
Page 4
2
Product information
2 Product information
Regarding these instructions
On the following pages, the vacuum tube collector will
simply be referred to as the collector. Roofing in the form
of pantiles, roof tiles, stone tiles, etc. will be uniformly
referred to as roof tiles.
These instructions describe the installation of collectors
(including their hydraulic connection) for the following
covers on pitched roofs:
• Roof tiles, plain tiles, monk/nun tiles and slate shingles.
2.1 Components and instructions
A solar thermal system for heating domestic hot water
and/ or central heating backup comprises various
components (Æ Fig. 1). These are supplied with
instructions regarding their installation, operation and
maintenance. Some accessories are supplied with
separate instructions. The following subjects are
described in the component instructions:
Collectors (Æ Fig. 1, [1])
• Installing the roof connections
• Securing collectors
• Hydraulic collector connection
• Collector maintenance
Solar pump station (Æ Fig. 1, [2])
• Installation of the solar pump station
• Pipework installation
• Commissioning the overall system
• Maintenance of the solar pump station
• Maintenance of the overall system
Cylinder (Æ Fig. 1, [3])
• Siting and installing the cylinder
• Commissioning the cylinder
• Cylinder maintenance
Solar controller (Æ Fig. 1, [4])
• Controller installation
• Operation of the controller and the overall system
6 720 647 042-11.1ITL
Fig. 1 Schematic diagram of a solar thermal system
1 Collectors
2 Solar pump station
3 Cylinder
4 Solar controller
4
6 720 647 042-01.1ITL
Fig. 2 Vacuum tube collector layout; here: SKR6.1R =
6 tubes (type SKR12.1R = 12 tubes)
1 Header box
2 CPC mirror for optimum sunlight utilisation
3 Heat transfer medium tubes
4 Double glass tubes with vacuum for optimum thermal
insulation (tubes can be replaced without draining the
system)
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 5
Product information
2
2.2 Correct usage
The collectors are designed as the heat source for DHW
heating and central heating backup.
B Only operate these collectors in conjunction with
suitable solar controllers and in fail-safe sealed
unvented solar thermal systems.
These systems must be equipped with a suitable,
adequately sized expansion vessel.
Permissible roof pitch
The self-cleaning effect for the glass tubes and CPC
mirror will only work if the roof has a pitch of at least 15°.
The maximum roof pitch is 65°.
Permissible loads
The installation set is suitable for the following:
• a standard snow load of 1.5 kN/m
(Æ Tab. 4) and
• wind speeds of max. 129 km/h (corresponds to a
stagnation pressure of 0.8 kN/m
B Find out about the local standard snow loads.
B To determine the maximum wind speed, take into
account the following factors:
– the location of the solar thermal system
– the geographic height [above seal level]
– the topography
– the building height
2
or 2.0 kN/m2
2
)
• The following values in the installation and
maintenance instructions of the solar pump station
refer to flat-plate collectors:
– the pre-charge pressure to be set for the expansion
vessel
– the operating pressure to be set
– the flow rate to be set
For the values applicable to vacuum tube
collectors, see the chapter "Final steps"
(Æ page 28) in these instructions.
Apart from the information in the solar pump station
instructions, observe the following:
• The distance between the solar pump station
(expansion vessel connection) and the bottom edge of
the collector array must be at least 2 m (Æ Fig. 3).
• The minimum pipe length (straight length) between the
solar pump station (expansion vessel connection) and
the collector array must be at least 10 m.
If necessary, consult a building structural engineer.
Heat transfer medium
To protect the collectors against damage through frost
and corrosion, operate them with LS solar heat transfer
medium. This must never be mixed with other fluids.
Other applicable instructions and important notes
The installation and maintenance instructions for the solar
pump station include vital information regarding the use of
collectors in a solar thermal system. Observe particularly
the information on the following subjects:
• Never braze pipework near the collectors.
• If system is used for central heating backup or covers
more than 60 % of the DHW demand, install a precooling vessel upstream of the expansion vessel.
• Install the expansion vessel (EV) with a tee 20-30 cm
above the solar pump station in the return (Æ Fig. 3).
• Flush and fill the system with LS solar heat transfer
fluid, by using a filling pump (never use water, as the
collectors cannot be drained). Consequently, there is
no need for an air vent above the roof.
> 200 cm
20-30 cm
6 720 647 042-14.1ITL
Fig. 3 Minimum clearances
2.3 EU Declaration of Conformity
This product conforms in design and operation to the
European Directives and the supplementary national
requirements. Its conformity is demonstrated by the CE
designation.
The Declaration of Conformity can be requested from the
manufacturer (see the back cover for the address).
SKR6.1R, SKR12.1R - Subject to technical modifications.
5
Page 6
2
Product information
2.4 Standard delivery
B Check that the delivered material is complete and
undamaged.
2.4.1 Mounting bracket
1
4
2.4.2 Installation set
7
4
3
2
3
2
6
Fig. 4 Standard delivery, roof connection for tiles
Item 1 Mounting bracket 4 6 4
Item 2 M10 nut 4 6 4
Item 3 Washer 4 6 4
Item 4 T-head bolt 4 6 4
Item 5 Screw 8 x 120 12 18 12
Item 6 Wooden support
100 x 150 x 8 mm
Tab. 2 Standard delivery, roof connection for roof tiles
subject to number of collectors
5
6 720 647 042-16.1ITL
2 x
SKR6
12 18 12
3 x
SKR6
1 x
SKR12
L
8
9
6 720 647 042-17.1ITL
Fig. 5 Standard delivery for installation set
2 x
SKR6
Item 2 M10 nut 24 36 6
Item 3 Washer 24 36 6
Item 4 T-head bolt 24 36 6
Item 7 Rail L=1300 mm 2 -- --
Item 7 Rail L=1953 mm 2 3 --
Item 7 Rail L=2007 mm -- 2 --
Item 7 Rail L=2022 mm -- -- 2
Item 8 L connector 4 6 --
Item 9 Clamp top/bottom 4 6 2
Tab. 3 Installation set subject to number of collectors
3 x
SKR6
1 x
SKR12
3 x SKR6.1
2 x SKR6.1
1300
1953
Standard snow load: max. 1.5 kN/m2Standard snow load: max. 1.5 kN/m
Tab. 4 Using the rails (Item 7) and maximum standard snow load (dimensions in mm)
6
(or 1xSKR6.1 + 1xSKR12.1)
2007
SKR6.1R, SKR12.1R - Subject to technical modifications.
1 x SKR12.1 or 1 x SKR6.1
1953
2
Standard snow load: max. 2.0 kN/m
2022
2
Page 7
Product information
2
2.4.3 Connection sets (hydraulic connection)
5
6720648182-02.1ST
Fig. 6 Standard delivery, connection set, rooftop
Item 1 Cap, thermal insulation 1 x
Item 2 Installation and maintenance
instructions
Item 3 Return feed bend 1 x
Item 4 Connection pipe, fully assembled
(incl. corrugated stainless steel pipe,
thermal insulation and 18 mm locking
ring fitting for connection to the
common pipeline)
Item 5 Reducer 18 x 15 mm 2 x
Tab. 5 Standard delivery, connection set, rooftop
1 x
2 x
2.5 Data plate
The data plate is mounted on the header box and contains
all important information in the form of symbols.
Symbol Meaning Explanation
A
G
A
a
A
A
Dimensions Measurements
V
f
m mass Weight
t
stg
p
max
p
pr
y
prod
Tab. 7 Data plate information
area
gross
area
aperture
area
absorber
volume
fluid
temperature
pressure
pressure
year
maximum
test
production
stagnation
Gross area
Aperture area
Absorber area
Collector contents
Stagnation
temperature, max.
Max. operating
pressure
Test pressure
Year of manufacture
2.4.4 Collector
6 720 647 042-08.1ITL
Fig. 7 Collector with pre-assembled male connectors
Item 1 Male connectors to join the collectors 2 x
Item 2 Collector SKR6.1R/SKR12.1R
1 x
comprising: vacuum tubes,
CPC mirror and header box
Tab. 6 Standard delivery, collector
SKR6.1R, SKR12.1R - Subject to technical modifications.
7
Page 8
3
Regulations
2.6 Specification
SKR6.1R SKR12.1R
Certificates
Width 0.70 m 1.39 m
Depth 0.10 m 0.10 m
Length 2.08 m 2.08 m
Collector connection,
flow and return
Collector contents 1.19 l 2.36 l
Gross area 1.46 m
Aperture area 1.28 m
Absorber area 1.29 m
Net weight 24 kg 44 kg
Permissible operating
pressure collector (p
max
Test pressure (ppr) 13 bar 13 bar
Stagnation temperature,
max.
Number of glass tubes 6 12
Glass tube: tube length /
external Ø / internal Ø
Tab. 8 Specification
180
160
140
120
100
80
60
40
20
0
012345678
Fig. 8 Collector pressure drop
1 Pressure drop curve for SKR12.1R
2 Pressure drop curve for SKR6.1R
15 mm 15 mm
10 bar 10 bar
)
301 °C 301 °C
1920 mm /
47 mm / 37 mm
2
2
2
2.90 m
2.57 m
2.58 m
6 720 647 042-15.1ITL
DIN
3 Regulations
B Observe all standards and guidelines applicable to the
installation and operation of the system in your country
and region.
• The Health and Safety at Work Act 1974
• Control of substances hazardous to health regulations
(COSHH) 1994
• The pressure equipment regulations 1999
• Construction (Design and Management) Regulation
(CDM) 2007
• The Work at Height Regulations 2005
• Manual Handling Operations Regulations 1992
2
2
2
• The Lifting Operations and Lifting Equipment
Regulations (LOLER) 1999
• Reporting of injuries, diseases or dangerous
occurrences regulations (RIDDOR) 1995
• Confined spaces regulations 1997
• Personal protective equipment at work regulations
1992
• Electricity at work regulations 1989
• Provision and uses of work equipment regulations
(PUWER) 1998
• BS 6795:1986 Code of practice for solar heating
systems for swimming pools for swimming pool
• BS5918: A code of practice for the installation of
DSHW systems for domestic hot water
• BS5546: 2000 Specification for installation of hot
water supplies for domestic purposes, using gas-fired
appliances of rated input not exceeding 70 kW
• BS6700: 2006 Specification for design, installation,
testing and maintenance, of servicing supplying water
for domestic use within buildings and their curtilages
• EN 12976: Thermal solar heating system and their
components (prefabricated systems)
• ENV 12977: Thermal solar heating system and their
components (bespoke systems)
• BS 6920: Suitability of non-metallic products for use in
contact with water intended for human consumption
with regards to their effect on the quality of water
• BSEN 12831:2003: Heating systems in buildings.
Methods for calculation of the design heat load
• BS 8000-15: 1990: Workmanship on building sites.
Code of practice for hot and cold water services
(domestic scale)
8
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 9
4 Before installation
b
a
a
Before installation
4
4.1 Determining space requirements
Also take account of the details concerning the optimum
arrangement of the collectors and the prevention of
shading (Æ chapter 4.3).
The clearance between the collector arrays
must be at least 15 cm to enable the correct
installation of the hydraulic connections.
The space requirement is determined by the installation
area of the collector array (Æ Tab. 9). When siting the
collector array ensure that the minimum are maintained
(Æ Fig. 9).
DANGER: Risk of fatal injury through
collectors that cannot withstand peak wind
and suction values.
B Maintain the minimum clearance to the
edge of the roof.
h
a =
10
C, a
b
a =
b
10
Number of
collectors
1 0.70 m 2.08 m 1.40 m 2.08 m
2 1.40 m 4.32 m* 2.80 m 4.32 m*
3 2.10 m 6.55 m* 4.20 m 6.55 m*
4 2.80 m -- -- --
5 3.50 m -- -- --
6 4.20 m -- -- --
Tab. 9 Space requirement (* for dimension B:
collectors arranged one above the other)
SKR6.1R SKR12.1R
Dim. A Dim. B Dim. A Dim. B
a
a
6720646203-10.1ST
Fig. 9 Minimum clearances of the collector array
• Dimension a: Use a formula, both are possible
• Dimensions A and B: Æ Tab. 9
• Dimension C: At least 3 rows of tiles to ridge or
chimney
• Dimension D: At least 0.5 m to the right and left of the
collector array as well as to the ridge for connection
lines below the roof.
h
SKR6.1R, SKR12.1R - Subject to technical modifications.
9
Page 10
4
Before installation
4.2 Planning the hydraulic connection
Please refer to the solar technology technical
guide for detailed information on planning the
hydraulic system and components.
Before you install the collectors you will need to know
how you can arrange the collectors.
Fit the collector sensor [1] in the collector
connected to the flow and return pipes [2]
and [3].
Maximum number of collectors per row:
• SKR6.1R: 6 collectors
• SKR12.1R: 3 collectors
The following shows two examples of hydraulic layouts for collectors:
1
6 720 647 042-03.1ITL
Fig. 10 Connection in a single row
1 Collector sensor (always on the connection side)
2 Flow pipe (to the cylinder)
3 Return pipe (from the cylinder)
4 Return U-bend
4
32
Fig. 11 Triple row connection (with shut-off valve)
1 Collector sensor (always on the connection side)
2 Flow pipe (to the cylinder)
3 Return pipe (from the cylinder)
4 Shut-off valve (accessory)
5 Return U-bend
6 720 647 042-04.1ITL
10
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 11
Before installation
4
4.3 General notes
We recommend that you engage the
services of a roofing contractor, as they are
experienced in working on roofs and dealing
with the risk of falling.
• Obtain information about on-site conditions and local
regulations.
• Remove and replace broken roof tiles, shingles, etc.
• Always install collectors with the header box on the top
(Æ Fig. 12).
6 720 647 042-23.1ITL
Fig. 12 Permissible installation orientation
• Arrange collectors on the roof in an appealing pattern,
for example, so that the collector array is in line with
windows and doors (Æ Fig. 13). However, observe the
minimum clearances towards the edge of the roof for
this (Æ Fig. 9, page 9).
• Align the collector array facing south, wherever
possible (Æ Fig. 13).
N
WO
S
• Avoid shading from adjacent buildings, trees etc. falling
onto the collector array (Æ Fig. 14).
6720646203-09.1ST
Fig. 14 Avoiding shade
4.4 Required tools and accessories
• Power drill
• 6 mm, 9 mm drill bits for pre-drilling
• Spanner, sizes SW13, 17, 22, 24, 30
• Hammer (for roof tiles and connection set)
4.5 Lightning protection
The requirement for lightning protection can differ from
region to region.
B Check regional regulations as to whether a lightning
protection system is required.
Lightning protection is frequently required for buildings
higher than 20 m.
Lightning protection should be installed by a qualified
electrician.
Where there is a lightning protection system installed,
check the inclusion of the solar thermal system into this
system.
6720646203-08.1ST
Fig. 13 Aligning the collector array to the building's
shape
SKR6.1R, SKR12.1R - Subject to technical modifications.
4.6 Installation order
To secure collectors to the roof, install in the following
order:
1. Determine distances for mounting brackets
2. Install mounting brackets.
3. Install rails and clamps.
4. Fit the collectors and collector sensors.
5. Connect piping to collectors.
11
Page 12
5
Handling
5 Handling
The collectors and installation materials are heavy and
awkward. Observe the following information, as working
on the roof involves potential dangers.
DANGER: Risk to life through falling and
falling parts!
B Do not use a ladder to move components
onto the roof because the installation
materials and collectors are heavy and
difficult to handle.
B For all work on the roof, take appropriate
measures to prevent accidents.
B Secure the roof against parts falling off.
B Always wear your own protective clothing
or safety equipment.
B The installation on the roof must be
performed by at least 2 people.
B During handling and installation, secure
the collectors and installation components
against falling.
B After completing installation, check that
the installation set and collectors are
securely positioned.
DANGER: Risk to life through inadequately
secured collectors during transport.
B Ensure the straps are securely tied to the
collectors.
B To prevent oscillation, observe the wind
force and guide hanging collectors with
guy ropes.
B To make handling collectors and installation materials
easier, use the following aids. They must have sufficient
load bearing capacity:
– Site lift or crane
– Roofing ladder or equipment for roof access
–Lifting belt
– Scaffolding
B Dispose of shipping packaging by environmentally
responsible means.
WARNING: Risk of injury through glass
splinters.
B When handling collectors, always wear
safety gloves and goggles.
NOTICE: Collector damage through
transport.
B We recommend transporting the collector
to the roof in its transportation packaging.
B Use the straps at the top of the collector for transport.
12
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 13
6 Fitting the mounting bracket
Fitting the mounting bracket
6
The collectors are connected to the structural element
using mounting brackets. The distances shown are using
the example of the mounting bracket for roof tiles.
B Ensure there is safe access to the roof in compliance
with current legislation and health and safety
requirements.
NOTICE: Damage to the roof by stepping on
installed mounting brackets and installation
set.
B To prevent damage to the roof, do not
step on installed components.
Pre-assembly on the ground
In order to make installation on the roof easier for you, we
recommend that you pre-assemble the threaded
connections for all mounting brackets at ground level.
B Secure the T-head bolt with washer and M10 nut onto
the mounting bracket.
6.1 Determining distances
An example of the mounting bracket for roof
tiles is shown in the following tables. The
distances also apply to other mounting
brackets.
B In order to install the mounting brackets, you must
determine the distances for them. Please observe the
following guidelines (Æ Fig. 16):
– On tiled roofs, the position of tile valleys are used to
determine the true distance between the mounting
brackets.
– The rafter spacing does not always match the
required spacing for the mounting brackets. For
larger or smaller rafter spacing, you must install
suitable supports on site with adequate loadbearing capacity (in doubt, consult a structural
engineer).
– For multiple rows of collectors, you must choose the
distances for the mounting brackets in such a way
that there is a minimum distance of 150 mm
between the collectors on the top and bottom.
– The mounting brackets must be positioned at right
angles to each other.
6720646203-40.1ST
Fig. 15 Pre-fitting the T-head bolts on the ground
NOTICE: Collector damage through
incorrectly positioned mounting brackets.
B Maintain the distance between the
mounting brackets (Æ Fig. 16).
B Always choose the largest possible
distance between two vertical mounting
brackets (Æ Fig. 16, Dimension b).
B A rafter width of at least 88 mm is required
to fasten the mounting brackets with
3 screws. Provide for on-site
reinforcements in case of narrower rafters.
B Define mounting bracket positions (Æ Fig. 16 to 20
and Tab. 10).
SKR6.1R, SKR12.1R - Subject to technical modifications.
13
Page 14
6
90°
90°
Fitting the mounting bracket
6.1.1 Vertical distances for the mounting brackets
For roof batten spacing of 370 mm (SKR6.1,
SKR12.1) and 450/460/470 mm (SKR6.1),
install the mounting brackets at a distance
from the roof batten. Accurate spacing is
required to achieve the correct dimension b
(Fig. 16).
xx
Dimension a Roof batten spacing
Dimension b For SKR6.1
Dimension b For SKR12.1
320 mm - 340 mm 1520 mm -
1715 mm
350, 430 mm 1715 mm -
1760 mm
370, 470 mm 1895 mm
380 mm - 420 mm 1520 mm -
1520 mm 1840 mm
1715 mm
360, 440, 450 mm 1760 mm -
1810 mm
460 mm 1810 mm
Tab. 10 Vertical distances for the mounting brackets
> 0,15 m
90°
b
0,65-0,8 m 0,65-0,8 m
Fig. 18 3 x SKR6.1 (or 1 x SKR6.1 and 1 x SKR12.1)
for a standard snow load of up to 1.5 kN/m
0,45 m
0,26 m
Fig. 19 2 x SKR6.1 (and others) for a standard snow
load of up to 2.0 kN/m
1,395 m
0,45 m
2
6720646203-03.2ST
2
6720646203-46.1ST
90°
a
6720646203-33.1ST
Fig. 16 Distances to be maintained and rafter width
6.1.2 Horizontal distances for the mounting brackets
Subject to the type of collector and regional snow loads,
you will have to use different distances.
xx
0,70-0,93 m
Fig. 17 2 x SKR6.1 or 1 x SKR12.1) for a standard
snow load of up to 1.5 kN/m
2
6720646203-02.2ST
x x
0,70-1,05 m
Fig. 20 2 x SKR12.1 (and others) for a standard snow
load of up to 2.0 kN/m
x x
0,70-1,05 m
6720646203-26.1ST
2
The Dimension x stands for an identical
distance. The maximum difference between
these dimensions is 100 mm.
14
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 15
Fitting the mounting bracket
6
6.2 Installing mounting brackets on roof tile roofs
B Depending on the distances (Æ page 14), remove 2-3
roof tiles from a row in the area of the rafters.
B Position the mounting bracket:
– The mounting bracket must be in the tile valley.
– The mounting bracket must be installed directly
above the roof tile below it without touching this tile.
B Mark the mounting bracket positions on the roof.
B Place mounting bracket [1] on rafter and pre-drill using
a 6 mm drill bit. Fasten with the screws [3].
1
1.
B If required, use wooden spacer [5] for height
compensation (pre-drill 9 mm).
B Carefully remove the roof tiles' drip edges and profiles
[2] and [4] in the area of the mounting brackets.
B Screw mounting bracket with 3 screws 8 x 120 mm [3]
onto the rafter. Use a SW13 spanner for tightening.
B Put the roof tiles back on.
NOTICE: Roof leaks from fine, wind-driven
snow in the area of the mounting bracket.
B If there is a larger gap between the top
and the bottom roof tiles, close this gap
using UV-resistant sealant.
6
13
9
2
2.
3
3.
5
Fig. 21 Mounting brackets for roof tile roofs
1 Mounting bracket
2 Top roof tile
3 Screws 8 x 120 mm
4 Bottom roof tile
5 Wooden spacer 100 x 150 x 8 mm
4
6720646203-07.1ST
SKR6.1R, SKR12.1R - Subject to technical modifications.
15
Page 16
6
Fitting the mounting bracket
6.3 Installing mounting brackets on plain tile roofs
NOTICE: Roof leaks on plain tile roofs!
B Consult a roofing contractor for advice
and assistance.
B Depending on the distances determined (Æ page 14)
remove 2-3 plain tiles from a row in the area of the
rafters.
B Position the mounting bracket:
– The mounting bracket [1] must be installed in the
middle of the plain tile below.
– The mounting bracket must be installed directly
above the plan tile below it without touching this tile.
1
1.
4
B To make room for the mounting bracket, shorten the
plain tile at the top edge if necessary and/or make a
create a suitable fixing point to the roof.
B Mark the mounting bracket positions on the roof.
B Pre-drill rafter with 6 mm drill bit.
B If required, use wooden spacer [4] supplied for height
compensation (pre-drill 9 mm).
B Screw mounting bracket with 3 screws 8 x 120 mm [2]
onto the rafter. Use a SW13 spanner.
B Cut adjacent plain tiles [3] and re-install them.
NOTICE: Roof leaks from fine, wind-driven
snow in the area of the mounting bracket.
B If there is a larger gap between the top
and the bottom roof tiles, close this gap
using UV-resistant sealant.
6
13
9
3.
3
Fig. 22 Mounting brackets for plain tile roofs
1 Mounting bracket
2 Screws 8 x 120 mm
3 Plain tiles, trimmed
4 Wooden spacer 100 x 150 x 8 mm
2
2.
6720646203-11.1ST
16
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 17
Fitting the mounting bracket
6
6.4 Installing mounting brackets on roofs with monk/nun tiles
B Depending on the distances determined (Æ page 14),
remove 2-3 roof tiles from a row in the area of the
rafters.
B Position the mounting bracket:
– The mounting bracket must be installed in the
middle of the roof tile below.
– The mounting bracket must be installed directly
above the roof tile below it without touching this tile.
B Mark the mounting bracket positions on the roof.
1
2
3
B If required, use wooden spacer [3] supplied for height
compensation (pre-drill 9 mm).
B Screw mounting bracket [1] with 3 screws 8 x 120 mm
[2] onto the rafter. Use a SW13 spanner.
B Re-install the roof tiles.
NOTICE: Roof leaks from fine, wind-driven
snow in the area of the mounting bracket.
B If there is a larger gap between the top
and the bottom roof tiles, close this gap
using UV-resistant sealant.
6
13
9
Fig. 23 Mounting brackets on roofs with monk/nun tiles
1 Mounting bracket
2 Screws 8 x 120 mm
3 Wooden spacer 100 x 150 x 8 mm
SKR6.1R, SKR12.1R - Subject to technical modifications.
6720646203-12.1ST
17
Page 18
6
Fitting the mounting bracket
6.5 Installing mounting brackets on slate roofs
NOTICE: To avoid roof leaks on slate or
shingle roofs, consult a roofer for advice and
assistance.
B A competent person must carry out the
installation.
B Because the mounting bracket can rest on
the panel below, this panel must be
reinforced on-site using a suitable
material.
1
2
B Depending on the distances determined (Æ page 14),
remove sufficient slates in the area of the rafters.
B Position the mounting bracket:
– The mounting bracket must be installed directly
above the slate below it without touching this panel.
B Mark the mounting bracket positions on the roof.
B Screw mounting bracket [2] with 3 screws 8 x 120 mm
[1] onto the rafter. Use a SW13 spanner.
B Re-install slates.
13
6
Fig. 24 Mounting brackets for slate shingle roofs
1 Screws 8 x 120 mm
2 Mounting bracket
6720646203-17.1ST
18
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 19
7 Rail installation
1300
1300
The mounting brackets and the collector are connected
by the rails and clamps.
Examples of how the rails can be used
1 x SKR6.1 2 x SKR6.1 3 x SKR6.1
Rail installation
2007
7
2022
Tab. 11 Dimensions in mm
1 x SKR12.1 1 x SKR12.1 * 1 x SKR6.1 and 1 x SKR12.1
1300
2022
Tab. 12 Dim. in mm
* = appropriate for the combination 2 x SKR12.1 and 1 x SKR6.1
Preassembling on the ground
In order to make installation on the roof easier, we
recommend that you pre-assemble the following parts on
the ground using a SW17 spanner.
1953
1953
1953
2007
1953
B Pre-assemble hammer-head bolts with L connector:
Æ Fig. 29, page 21.
B Pre-assemble lower clamps onto the horizontal rail
(1300 mm or 2007 mm): Æ Fig. 29, page 21.
B Pre-assemble lower clamps onto the horizontal rail
(2022 mm): Æ Fig. 30, page 22.
SKR6.1R, SKR12.1R - Subject to technical modifications.
19
Page 20
7
A
B
Rail installation
7.1 Installing the vertical rails
Aligning the rails
When installing the rails, ensure they are aligned
accurately (Æ Fig. 25):
• perpendicular to the horizontal (i.e. align with battens
[1])
• same overhang on top and bottom (dimension x).
SKR6.1: Installing vertical rails for roof batten clearances of 350-370 mm and 430-470 mm
For these spaces between roof battens, it is necessary to
connect the L-shaped connector and the mounting
bracket with the vertical rail using the hammer-head bolts.
Roof batten
spacing
Position of
L-shaped
connector
Top, bottom of
mounting
bracket
350, 430, 440 mm A bottom only
360, 450 mm B bottom only
460 mm A top
B
bottom
370, 470 mm B top and bottom
Tab. 13 Fastening the L-shaped connector onto the
mounting bracket
B Fit rails as specified by Tab. 13 to L-shaped connector
and mounting bracket (Æ Fig. 27).
17
Fig. 25 Aligning the vertical rails
SKR12.1: Vertical rails for all clearances between roof battens
B Place top and bottom rails on mounting brackets and
fit using the hammer-head bolts (Æ Fig. 26). Use a
SW17 spanner.
SKR6.1: Installing vertical rails for roof batten clearances of 320-340 mm and 380-420 mm
B Place top and bottom rails on mounting brackets and
fit using the hammer-head bolts (Æ Fig. 26). Use a
SW17 spanner.
17
A
B
6720646203-45.1ST
Fig. 27 Screwing to L-shaped connector and mounting
bracket (here: at position A)
Checking correct fit of all hammer-head bolts
B Check correct fit of all hammer-head bolts [1].
1
Fig. 26 Installing rails onto mounting brackets
20
6720646203-21.1ST
6720646203-54.1ST
Fig. 28 Checking correct fit of all hammer-head bolts
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 21
Rail installation
7
7.2 Installing horizontal rails and clamps
Horizontal rails are not required in all cases
(Æ Tab. 11 and 12, page 19).
Pre-assembly of lower clamping brackets on the ground
B Split the top and bottom clamping [2] and [1] at their
pre-determined breaking point.
B Install the lower clamps [1] onto the bottom rail at the
distances indicated (Æ Fig. 29) and fit them using a
nut and a washer. Use a SW17 spanner.
7
x
90°
6
Do not fasten the upper clamps [2] onto the collector and
the top rail until after the collector has been installed.
Installing the rails
When installing the rails, ensure they are aligned
accurately (dimension x: same overhang on the right and
left Æ Fig. 29).
Ensure that the hammer-head bolt is installed correctly
[4].
B Using the L-shaped connector [5], 4 hammer-head
bolts, 4 washers and 4 nuts, install the horizontal rail [6]
onto the vertical rail [7].
17
90°
x
1
5
1953
2
90°
1
450-55020-90 160-
4
260
1300
450-550 20-90
3
450-55020-90 160-
260
450-550 20-90160-
260
2007
450-550
6720646203-19.2ST
Fig. 29 Rails and clips, all dimensions in mm
1 Lower clamp
2 Upper clamps
3 Horizontal rail 2007 mm
4 Hammer-head bolt (fitted)
5 L-shaped connector for connecting the rails
6 Horizontal rail
7 Vertical rail
SKR6.1R, SKR12.1R - Subject to technical modifications.
21
Page 22
7
Rail installation
7.3 Installing the clampings onto the vertical rails
No horizontal rails are installed onto the 2022 mm vertical
rail. Therefore, you must install the upper and lower
clamping brackets on the vertical rails.
Pre-assembly of the lower clamps onto the ground
B Separate the upper and lower clamps [1] and [2] at
their pre-determined breaking point.
Ensure that the hammer-head bolt is securely fastened
[3].
B To fasten the lower clamps [2], push the hammer-head
bolt into the rails as far as it will go. Fasten with a
SW17 spanner.
Do not fasten the upper clamps [1] to the collector and
the rail until after the collector has been installed.
17
1
2
2
2022 mm
6720646203-27.1ST
3
Fig. 30 Fitting clamping brackets
1 Upper clamps
2 Lower clamps
3 T-head bolt
22
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 23
8 Installing the collectors
Installing the collectors
8
Once the mounting brackets and the rails with the
clamping brackets have been installed, the collectors can
be fitted.
DANGER: Risk to life through falling objects!
B Secure the collectors against falling
during handling and installation.
WARNING: Risk of injury through glass
splinters.
B When handling collectors, always wear
protective gear including but not limited to
safety gloves and goggles.
NOTICE: Collector damage through
evaporation in the solar circuit.
B Leave the sun protection film on the
collector until the collector has been
flushed and filled. However, it should not
be exposed to weather for more than
4 weeks.
B Fit a suitable sun protection cover for
longer periods of time.
B Install the upper clamps (Æ Fig. 31, [1 or 2]) onto the
rails in the same way as the lower clamps [3]. Fasten
the upper clamps once the other collectors have been
installed.
6 720 647 042-06.1ITL
8.1 Fitting the first collector
Align the first collector in such a way that during
installation all collectors have the same overhang over the
vertical rails to the right and left.
B Place the collector still packaged onto the rails.
B Open the packaging at the bottom. This allows the
collector to slip into the lower clamps (Æ Fig. 31, [3]).
These clamps must provide secure grip into the
collector profile.
B Align the collector to the horizontal rails, push the
edges of the collectors onto the rails, ensure they
securely rest on the rails.
Once all the collectors are installed, the overhangs on
the sides will have to be identical.
Fig. 31 Collector fitted onto to the horizontal rails
1 Upper clamps for horizontal rail
2 Upper clamps if only vertical rails are available
3 Lower clamps
B Insert the upper clamping brackets [1] in the groove on
the back of the collector [2].
2
1
6 720 647 042-21.1ITL
Fig. 32 Upper clampis at the back of the collector
SKR6.1R, SKR12.1R - Subject to technical modifications.
1 Upper clamps
2 Collector back with groove
23
Page 24
8
Installing the collectors
8.2 Fitting the second collector
The male connectors act as the joining part between two
collectors (Æ Fig. 33).
B Position the second collector on the rails and slide next
to the fitted collector.
B Centre the collectors on the rails so that the overhang
on the left and right hand sides are equal.
NOTICE: Collector damage through twisted
internal pipes.
B Hold the connection nipple using a SW24
spanner.
B Tighten the nuts with a SW24 spanner.
8.3 Installing the collector sensor
The collector sensor is supplied either with the solar
pump station or with the control unit; fit it into the collector
connected to the flow and return pipes (Æ chapter 4.2,
page 10).
NOTICE: System damage through faulty
sensor lead.
B Protect the lead against possible damage
(e.g. rodent attack).
The correct operation of the solar thermal
system requires that the collector sensor is
fitted correctly.
B Push the collector sensor (Æ Fig. 34, [1]) 90 mm into
the sensor well (as far as it will go).
90 mm
6 720 647 042-09.1ITL
Fig. 33 Connecting the collectors hydraulically
1 Left-hand collector
2 Union nut (pre-fitted)
3 Olive 15 mm (pre-fitted)
4 Male connection ½ “
5 Right-hand collector
B Fit all other collectors likewise.
B Fit the return U-bend to the last collector (Æ Fig. 39,
page 26).
B Tighten upper clamps with a SW17 spanner
(Æ Fig. 31).
CAUTION: Risk of scalding through fittings
that have not been tightened.
B Check all fittings for correct tightness.
6 720 647 042-05.1ITL
Fig. 34 Installing the collector sensor
24
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 25
Installing the collectors
8
8.4 Fitting the bridging set (accessory)
To improve the appearance of the space between two
collectors, the bridging set can be fitted as an accessory.
Standard delivery
• 1 x thermal insulation (45 mm wide) with self-adhesive
closure
• 1 x cover panel
• 2 x connection plugs with metal pin
Installation
The installation requires the collectors to be aligned
precisely.
1. Place the thermal insulation over both fittings from
below and seal using the self-adhesive tab.
2. Push on the cover panel from above and lock in place
at the back of the header boxes.
The plug that is part of the bridging set holds both
collector frames together with the correct clearance.
1. Remove the original plugs from the collector frame
profiles.
2. Insert the new connection plugs into the profiles.
3. Drive the metal pin with a hammer into the side of the
plug.
1.
6 720 647 042-13.1ITL
Fig. 35 Top of collector at header box: installing thermal
insulation and cover panel
2.
6720646203-42.1ST
Fig. 36 Collector bottom: replacing the plugs
3.
SKR6.1R, SKR12.1R - Subject to technical modifications.
25
Page 26
9
Hydraulic connection
9 Hydraulic connection
For information regarding the routing of pipework
between the components (collectors, solar pump station,
solar cylinder), see the "Solar pump station" installation
instructions.
NOTICE: Roof leaks through inadequate
weather tightening.
B Use adequate roof fittings when feeding
the connection pipes through the roof.
B If necessary, contact a specialist for
assistance.
Route the sensor lead with the flow pipe to
the collector. On some solar twin pipes, the
sensor lead is already fitted underneath
thermal insulation.
Connecting pipework
The hydraulic connections to the individual pipes under
the roof are made using the 1 m long flexible connection
pipes. These can be bent a maximum of 90°.
NOTICE: Collector damage through twisted
internal pipes..
B Hold connection pipe (Æ Fig. 37, [4])
using a SW24 spanner.
B Use a second SW24 spanner to fasten
the union nuts [2].
B Connect the pipe [1] to the olive fittings of the
connecting pipes (15 mm or 18 mm pipe).
27
30
18
15
6720648182-01.1ST
Fig. 38 Fitted connection pipes and installation of the
pipeline penetrating the roof
B Fit the return U-bend [2] to the last collector.
B Insert the cap [1] with fitted thermal insulation into the
insulation on the collector [4]. By pressing and slightly
turning ensure that the cap fits correctly all around
inside the insulation profile.
42 31
24
6 720 647 042-12.1ITL
Fig. 37 Fitting connecting pipes to collectors
1 Collector
2 Union nut (pre-fitted)
3 Olive 15 mm (pre-fitted)
4 Connection pipe (already insulated)
24
6 720 647 042-18.1ITL
Fig. 39 Fitting the return feed bend and cap
1 Cap with thermal insulation
2 Return U-bend
3 Locking ring (preassembled)
4 Collector
CAUTION: Risk of scalding through fittings
that have not been tightened.
B Check all fittings for correct tightness.
26
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 27
Installing the shut-off valve (accessory)
For collector arrays consisting of several rows of
collectors connected in parallel, each collector array must
be flushed and vented individually. In order to do so, a
shut off valve has to be installed in the flow connection of
each row of collectors.
NOTICE: Collector damage through excess
pressure.
Never shut off the pipe between the collector
and the expansion vessel (EV) or safety valve.
B Fit the shut-off valve with the locking ring fittings
(2 pieces) supplied, into the collector flow.
1
Hydraulic connection
To flush and vent a row of collectors, always
open the shut-off valve for this row only. All
others remain closed. Open all shut-off
valves after flushing and venting.
Observe the information on pressurised
filling in the installation instructions of the
solar pump station and fill station using the
filling pump.
9
4
32
Fig. 40 Triple row connection (with shut-off valve)
1 Collector sensor
2 Flow pipe (to the cylinder)
3 Return pipe (from the cylinder)
4 Shut-off valve
5 Return U-bend
6 720 647 042-04.1ITL
SKR6.1R, SKR12.1R - Subject to technical modifications.
27
Page 28
10
Final steps
10 Final steps
10.1 Checking the installation
Final steps can only be carried out after the
following checks have been made.
Checks
1. Are all connection fittings tightened?
2. Are all threaded fittings on rails, mounting
brackets and clamps tightened?
3. Has the collector sensor been pushed
into the sensor well as far as it will go
(90 mm)?
Tab. 14 Checking the installation
10.2 Pressure filling, flushing, venting
The solar thermal system must be filled by means of
pressure filling, then flushed and vented. Observe the
notes on pressure filling in the installation instructions for
the solar pump station as well as the filling station.
10.4 Determining and setting the operating pressure
Following the pressurised filling and flushing as well as a
pressure test, determine and set the required operating
pressure. For information on how to proceed, please refer
to the instructions for the solar pump station.
The operating pressure is calculated from the
static system head plus 2.0 bar (static
system head = difference in head between
the expansion vessel connection and the top
edge of the collector; 1 metre difference in
head corresponds to 0.1 bar).
Example: 10 m height differential equals
1.0 bar plus 2.0 bar = 3.0 bar.
10.5 Adjusting the flow rate
Observe the information in the installation
and maintenance instructions for the solar
pump station (Æ chapter "Adjusting the flow
rate").
NOTICE: Collector damage through frost.
B Fill solar heat transfer medium LS under
pressure for filling and flushing the
system.
Never use water, as the collectors cannot
be drained.
10.3 Adjusting the pre-charge pressure of the expansion vessel
Prior to filling the solar thermal system, check the
expansion vessel pre-charge pressure (air side).
The expansion vessel pre-charge pressure is
calculated from the static system head plus
1.7 bar (static system head = difference in
head between the expansion vessel
connection and the top edge of the collector;
1 metre difference in head corresponds to
0.1 bar).
Example: 10 m height differential equals
1.0 bar plus 1.7 bar = 2.7 bar.
B If required, correct the expansion vessel pre-charge
pressure.
Flow rate l/min
(at a flow temperature 20 °C)
SKR6.1R
Number of collectors
1--2.0
22.04.0
33.05.5
44.0--
54.5--
65.5--
Tab. 15 Flow rate to be set for solar controllers without
speed control, subject to the number and type of
collectors
(l/min)
SKR12.1R
(l/min)
10.6 Insulating piping
On-site thermal insulation for pipework
B Outdoors, use UV and high temperature-resistant
thermal insulation.
B Use insulation and pipe clips resistant to high
temperatures for indoor piping.
B Make the insulation bird-proof.
28
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 29
Replacing individual tubes
11
11 Replacing individual tubes
You can recognise a faulty tube by the fact that the silver
coating in the lower section of the tube has changed to a
white mist.
WARNING: Risk of injury through glass
splinters.
B When handling collectors, always wear
safety gloves and goggles.
Fitting a tube
Install the new tube [4] in reverse order to the removal of
the old one.
Ensure the silicon ring [1] sits correctly inside the header
box.
B Coat the top of the tube with a soapy solution or
lubricating paste.
B Push the tube through the silicon ring into the header
box whilst turning it slightly.
B Place the tube holder [2] on the end of the tube, push
it in between the notches in the aluminium profile and
engage it in the groove.
B Pull down the tube into the tube holder as far as it will
go.
6 720 647 042-10.1ITL
Fig. 41 Replacing individual tubes
1 Silicone ring
2 Tube holder
3 Release lever
4 Tube
Removing a mechanically damaged tube
B Carefully remove glass splinters without damaging the
CPC mirror surface.
B Remove the bottom tube retainer [2].
Removing a mechanically undamaged tube
B In order to be able to remove the bottom tube retainer
[2],
– push the tube 5 mm upwards into the header box
and
– push down the two release levers [3] on the right
and left using your thumb and index finger.
B Release the tube retainer by lifting towards the header
box.
B Lift the tube slightly and turn it about the longitudinal
axis to pull it straight down and out.
If there is inadequate room to remove the
tube, the coil can be bent upwards up to 20°.
SKR6.1R, SKR12.1R - Subject to technical modifications.
29
Page 30
12
Environmental protection/disposal
12 Environmental protection/
disposal
Environmental protection is one of our principal policies.
Quality of performance, efficiency and environmental
protection are equally important objectives for us.
Statutory and other regulations concerning environmental
protection are strictly applied. To protect the environment,
we use the best possible technology and materials.
Disposal
At the end of their service life, materials should be
recycled using the most environmentally responsible
processes.
30
SKR6.1R, SKR12.1R - Subject to technical modifications.
Page 31
13 Maintenance/inspection
Maintenance/inspection
13
DANGER: Risk to life through falls and
falling parts!
B For all work on the roof, take appropriate
measures to prevent accidents.
B Secure the roof against falls.
B Always wear your own protective clothing
or safety equipment.
The collector array must be checked at regular intervals
(inspection). Defects/faults must be remedied without
delay (maintenance). We recommend conducting the first
maintenance/inspection after about 500 hours run, and
then at intervals of 1-2 years.
Use the table as a copy template so that you will have
documentation available even after the third maintenance.
B Fill out the report and tick off the tasks performed.
Owner: Site location:
Maintenance and inspection tasks Page Maintenance/inspection
Date
1. Visual inspection of the collectors carried out
(correct seating of glass tubes, visual impression)?
2. Collector sensor is positioned correctly and is inserted into
the sensor well as far as it will go?
3. Visual inspection of the installation system carried out?
4. Visual inspection for leaks carried out at points where the
mounting system meets the roof?
24
5. Visual inspection of pipe insulation carried out?
Notes
The collector array has been serviced as specified by these
instructions.
Date, stamp,
signature
Date, stamp,
signature
Tab. 16 Inspection and service report
Date, stamp,
signature
SKR6.1R, SKR12.1R - Subject to technical modifications.
31
Page 32
Buderus
Cotswold Way, Warndon, Worcester WR4 9SW
Customer service: 0844 892 3004
Technical support: 0844 892 4224
www.buderus.co.uk
In the UK and IE, Buderus is a brand name
of Bosch Thermotechnology Ltd.
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