STIEBEL ELTRON SOL 27 plus Specification sheet

Operating and installatiOn
high perfOrmance flat-plate cOllectOr
sOl 27 plus»
sOl 27 plus c34»

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3
cOntent
1. Operating instructions for users and
contractors 3
1.1 Equipment description 3
1.2 Maintenance and care 3
1.3 Important information 3
1.4 What to do if ..? 3
2. Installation instructions for contractors 5
2.1 Reference to other applicable
documents 5
2.2 Regulations and standards 5
2.3 Safety instructions 5
2.4 Specification 5
2.5 Accessories 6
2.6 Installation 6
2.7 Installation on tiled roofs portrait side-
by-side 9
2.8 Installation on tiled roofs, landscape,
side-by-side 11
2.9 Installation on tiled roofs, landscape,
above each other 13
2.10 Flat roof installation 15
2.11 Wall installation 16
2.12 Installation on corrugated roofs 17
2.13 Frame connection set 19
2.14 Vertical installation 19
2.14 Quick installation on tiled roofs
portrait side-by-side 21
2.16 Lightning protection and earthing 25
2.17 Positioning of and interconnection
between collectors 26
2.18 Filling the heat transfer circuit 27
2.19 Pressure test 27
2.20 Commissioning 27
Start-UP Protocol 28
Guarantee 31
Environment and recycling 31
The installation (water and electrical work)
and commissioning, as well as the mainte-
nance of this equipment, must only be carried
out by an authorised qualified contractor in
accordance with these instructions.
Ursprungsdokument:
267609-34085-8150 SOL 27 plus_de

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1.2 Maintenance and care
Specialists should carry out an annual inspection
of the solar heating system regarding perfect
system function, including the control unit,
safety equipment and cylinder.
System components exposed to the weather
must also be checked for perfect condition
(fixings, thermal insulation, contamination, etc.) .
Specialist contractors must check the pH value
(> 7) and frost protection level (-30 °C) of the
heat transfer medium annually. If required, top
up with H -30 L or H -30 LS , via the SOKI filler.
Where maintenance or repair work necessitates
the heat transfer medium to be drained off, ask
a specialist to carry this out for you.
During such operations, cover the
collectors with opaque material.
Cleaning
Generally, solar collectors require no cleaning,
as they are largely self-cleaning. In case of
severe contamination (e.g. dust or avian
excrement), the surface can be cleaned with
fresh water (not during strong sunlight).
1.1 Equipment description
Flat-plate collector SOL 27 plus
The flat-plate collector converts light
(radiation) into heat. Light penetrates the glass
cover. It is made from pre-stressed, highly
transparent single pane safety glass. The light
strikes the absorber and is converted into heat.
The highly selective vacuum coating of the
absorber and the thermal insulation on the
back of the absorber reduce heat losses to the
ambience to a minimum. The thermal energy
yielded by the collector is transported by the
circulating heat transfer medium and a pump
to the DHW cylinder. The inside of the collector
can mist up under certain operating condition
(e.g. large cylinder with low temperature level
compared to the ambience or high relative
humidity). Vent plugs are provided at the
collector sides for venting purposes.
Installation sets
Generally, the following options are available:
– installation on tiled roofs
– wall mounted installation (at a vertical wall)
– installation on flat roofs or
– installation on corrugated roofs.
1. Operating instructiOns fOr users and cOntractOrs
1.4 What to do if ..?
Fault Cause Remedy
Fault/error message at the controller System fault; sensor faulty or incorrectly
connected.
See installation and operating instructions of the controller.
Pressure fluctuations in the system Immediately after commissioning:
Air pockets in the solar circuit.
Vent the system again.
Collectors mist up Moisture ingress during storage. The internal mist will evaporate after a few weeks in operation by
moisture progressively escaping through the integral ventilation
slots.
The pump does not run, even though
the collector is warmer than the
cylinder (neither motor noise nor
vibrations are discernible).
Maximum cylinder or collector temperature
exceeded. Indicator lamp or display at the
controller activated.
The controller has shut down correctly and restarts again
automatically when the actual temperatures drop below their
selected maximum temperatures.
No electrical power. Check cables and fuses.
Excessive temperature differential (>15 °C)
selected or the controller does not work.
• Check the controller.
• Check the temperature sensor.
• Reduce the temperature differential.
Pump shaft blocked. Briefly switch over to max. speed or insert a screwdriver
into the slot and turn manually.
Pump contaminated. Dismantle and clean the pump. Close the throughput limiter and
pump ball valve.
Sensor not OK or incorrectly installed. Check the sensor position, installation and curves; the collector
sensor must be securely and fully inserted into the sensor well.
The pump is running, but no flow rate
is discernible at the flow meter with
balancing valve. The flow and return
temperatures are identical or the
cylinder temperature does not rise or
rises only slowly.
There is air in the pipework. Check the system pressure. Operate the pump in intervals at
maximum pump rate. Open the air-vent valves at the collector, at
the pump and at the solar cylinder and vent these items.
Should this fail to provide any improvement:
• Flush the system in both directions; clean ttings, such as ow
meters with balancing valve and dirt traps.
• Check the line routing; in case of "up and down", e.g. at balcony
protrusions or around water pipes, change the line routing, if
required or insert additional air vent valves.
• Check the function of the automatic air vent valve. For this, remove
the protective cap and check the float movement with a blunt
needle. If necessary, replace the air vent valve.
System pressure too low.
System contaminated.
1.3 Important information
System pressure
Regularly check the pressure gauge of the heat
transfer circuit at the SOKI; display indication
(set value): 3.5 to 4 bar when the system is cold
(below 30 °C).
Notify your local contractor if actual values
differ from the set values.
Only top up with H -30 L or H -30 LS.
Shutting the equipment down
The Stiebel Eltron solar heating system is
designed so that no special measures are
required, if no hot water is drawn for a
prolonged period (e.g. during a summer
holiday).
Never switch OFF the control unit and the
pump to prevent the system overheating.
The system user must not drain off the heat
transfer medium when the system is shut
down.
Only authorised contractors may carry out the installation and assembly
work.

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Fault Cause Remedy
The pump is running, but no flow
rate is discernible at the flow meter
with balancing valve.
Flow meter with balancing valve stuck or
faulty.
Check the function of the flow meter with balancing valve. A
jammed ring can block the display in the sight glass, even if the
flow rate is correctly adjusted. Start the pump in manual mode;
the pump piston movement should be discernible. Release the
piston through tapping it lightly; in emergencies, replace the
flow meter with balancing valve.
Shut-off valve closed. Open the shut-off valve.
Pump appears to open late and stops
early.
The temperature differential between the
collector and the cylinder is too large.
Reduce the temperature differential at the control unit.
The pump starts and switches itself
off again shortly afterwards. This is
repeated a few times until the system
runs correctly. The same happens in
the evening.
The solar irradiation is still insufficient for
heating up the entire pipework.
Check for faults again when there is strong solar irradiation.
The flow rate is excessive (pump set too
high).
Reduce the pump rate.
The switching temperature differential of the
controller is set too low.
Increase the switching temperature differential at the controller.
Pipework not fully insulated. Insulate the pipework.
The cylinder and collector sensors are
interchanged (problem occurs after
commissioning).
Connect the temperature sensors to the correct sensor terminals
(see the control unit installation and operating instructions).
The pressure gauge indicates a fall in
pressure.
A pressure drop shortly after the system is
filled is quite normal, as air is still escaping
from the system. A subsequent pressure
drop can be caused by an air pocket that
has shifted later on. In standard operation,
the pressure can fluctuate by 0.2 to 0.3 bar,
subject to system temperature. A point
in the system leaks, if the pressure falls
continuously.
• Automatic shut-off valve closed?
• First check the ttings, glands at shut-off valves and all
threaded connections, then all solder fittings.
• Check the expansion vessel inlet pressure and the diaphragm
for leaks.
Fluid loss through opening of the safety
valve, since the expansion vessel is too
small or without pressure or faulty. Collector
damage (leaking) and frost damage through
insufficient frost protection.
• Check the vessel size.
• Check the antifreeze level and the pH value.
The pump runs noisily. Air in the pump. Vent the pump.
Insufficient system pressure. Increase the system pressure.
System is noisy. This is normal in the
first few days after filling the system.
Two possible causes, if this occurs
later:
System pressure too low. The pump draws in
air via the air vent valve.
Increase the system pressure.
The pump rate is set too high. Change to a lower pump rate and check the flow rate at the flow
meter with balancing valve.
The cylinder cools down over
night. After the pump has stopped,
the flow and return operate at
different temperatures; the collector
temperature is higher at night than
the outside temperature.
The gravity brake does not close. • Check the position of the setting handle and check the gravity
brake for leaks (jammed swarf, dirt particle in the sealing
surface).
• Never connect the solar heat exchanger directly, but draw
the supply lines first in a U downwards (a siphon assists the
gravity brake). If required, install a two-way valve that is
switched simultaneously with the pump.
Single pipe circulation for short pipework
with low pressure drop.
Install a gravity brake in the flow or a heat insulating loop.
Re-heating does not work. The
boiler runs for a short while, stops
and restarts again. This repeats
frequently, until the cylinder has
reached its set temperature.
Air in the re-heat heat exchanger. Vent the re-heat heat exchanger.
Heat exchanger area too small. Compare the details supplied by the boiler manufacturer
and those of the cylinder manufacturer. The problem may be
resolved by selecting a higher flow temperature at the boiler.
The cylinder cools down excessively. Insulation faulty or incorrectly fitted. Check the insulation; insulate the cylinder connections.
Re-heating controller setting. Check the boiler controller setting.
DHW circulation runs too frequently and/or
at night.
Check the switching times and interval operation.
The pump does not stop. Sensor or sensor position not OK. Check the sensor position, installation and curves.
Control unit not OK. Note: The variable speed pump does not stop immediately, but
only after it reaches its lowest speed.

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2. installatiOn instructiOns fOr cOntractOrs
2.4 Specification
Type SOL 27 plus SOL 27 plus C34
Part no. 220455 227584
Height mm 2205
Width mm 1195
Depth mm 106
Pattern dimension (incl. connectors) mm 1195 x 2242
Weight (dry) kg 48
Idle temperature (at 1000 W/m2) °C 213
Operating pressure min. bar 3.5
Permiss. operating pressure bar 6
Test pressure (absorber) bar 10 (factory setting)
Test medium water (at the factory)
Pressure testing of the complete system bar 7.8 with WF-30 L
Nominal flow rate l/h 50 – 300
Collector pressure drop (500 l/h) mbar approx. 35 (water, 20 °C)
Collector pressure drop (160 l/h) mbar approx. 5.1 (water, 20 °C)
Connection G ¾“ (male)
Heat transfer medium H-30 L, ready mixed
Heat transfer medium content, incl. distribu-
tion line l 1.72
Total area m² 2.63
Aperture area m² 2.40
Absorber area m² 2.39
Angle of inclination ° 20 to 90
Connection dimensions mm 2010 x 1040
Casing aluminium (salt water resistant)
Cover single pane safety glass, 4 mm
Absorber aluminium, highly selectively coated, copper
tubes, laser welded (> 600 spots per metre)
Pipe copper, manifold diameter 18 x 1, harp-shaped
pipe diameter 8 x 0.4
Thermal insulation mineral wool, black backing paper, low level of
gas release, thermal conductivity class
WLG 040
Gasket EPDM
Connecting pieces corrugated stainless steel pipe
with union nut (brass) G ¾“
Output* W/collector 0 to 2000
Conversion factor h0 0.81
Heat loss value a1 W/(m²K) 3.56
Heat loss value a2 W/(m²K²) 0.0138
* Subject to global radiation levels, installation conditions, heat transfer medium temperature and
system characteristics.
2.1 Reference to other applicable
documents
Observe the detailed operating and control
instructions in the separate installation
instructions of the control units, compact
installations and cylinder.
2.2 Regulations and standards
Observe the following during the installation:
DIN EN 12828 Heating systems in build-
ings - designing hot water
heating systems
DIN EN 12975 Solar heating systems and
their components
DIN 4757 Solar heating systems
DIN 4807 Expansion vessels
DIN 3320 Safety shut-off valves
DIN 1052 Timber structures
DIN 1055 Load assumptions for build-
ing structures
DIN EN 1044 Brazing materials
VDE 0185 General lightning protec-
tion regulations
TRD 802 Steam boilers category III
TRD 402 Equipment for steam boiler
systems with hot water
generators, category IV
DVGW Code of Practice GW 2
Observe the Health & Safety at Work Act and all
other relevant regulations.
2.3 Safety instructions
Collector
A solar collector generates heat from sunlight and all other types of light.
This leads to collector connectors getting
very hot, even when they are not filled. This
creates a risk of burning. Cover the collectors
with opaque material until the installation
has been completed. It is recommended you
leave the collector inside its packaging until
it is installed.
Neither drop the collector nor anything onto the collector.
Never step onto or stand on the collector.
Never leave the collector unsupported or unsecured. The glass could break if
the collector falls over.
Miscellaneous
Setting the maximum cylinder temperature higher than 60 °C at the
control unit is only permissible in conjunction
with a thermostatically controlled DHW mixer.
Otherwise there would be a risk of scalding
at the draw-off point.

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2.5 Accessories
2.5.1 Fixing accessories
Item Standard delivery Part no.
SMR1 Quick mounting frame for one portrait col-
lector. Installation on tiled roofs is feasible with the
quick fixing set SBP.
1 x collector support (top), 1 x collector sup-
port (bottom), 2 x side locking brackets, 2 x
wedges
22 13 67
SMR2 Quick mounting frame for two portrait collec-
tors. Installation on tiled roofs is feasible with the
quick fixing set SBP.
1 x collector support (top), 1 x collector sup-
port (bottom), 2 x side licking brackets, 2 x
wedges, 1 x centre anti-wind lock, 1 x angle
wedge, 1 x compensator, 2 x gaskets
22 13 68
SBP Quick fixing set for tiled roofs. 4 x roof hooks 22 13 66
SRV Quick frame connection set for joining two
quick mounting frames.
1 x centre anti-wind locks, 1 x wedge, 1 x
compensator, 2 x gaskets
22 13 69
R1 Mounting frame for one portrait collector. The
fixing sets BP, BW, BF S and BF W enable mounting
on tiled, corrugated and flat roofs, as well as on the
wall.
2 x profile rails, 4 x locking brackets, 1 set of
nuts and bolts M10
22 04 56
R2 Mounting frame for one landscape collector or
two portrait collectors. The fixing sets BP, BW, BF S
and BF W enable mounting on tiled, corrugated and
flat roofs, as well as on the wall.
2 x profile rails, 8 x locking brackets, 1 set of
nuts and bolts M10, 1 x compensator with air
vent valve, 2 x gaskets
22 04 57
BP Fixing set for mounting on a tiled roof. 2 x roof hooks, 1 x collector strip, 1 set of
nuts,
washers and bolts M10, 6 x washers
18 55 44
BW Fixing set for mounting on a corrugated roof.
2 x channel section, 2 x threaded rod M16 , 1
sets of nuts and bolts M10, 8 x nuts M16, 4 x
washers for M16, 2 x washers large, 2 x ser-
rated washers, 1 set of nuts and bolts M6
18 56 59
BF S Fixing set for portrait mounting on flat roofs
and on walls.
1 x vertical support, 1 x horizontal support, 1
x cross support, 1 x brace, 1 set of nuts and
bolts M10, 1 set of nuts and bolts M6
18 55 43
BF W Fixing set for landscape mounting on flat roofs
and on walls.
1 x vertical support, 1 x horizontal support, 1
x cross support, 1 x brace, 1 set of nuts and
bolts M10, 1 set of nuts and bolts M6
07 43 24
RV Frame connection set for joining several mount-
ing frames in portrait installations.
2 x frame connectors, 1 set of nuts and bolts
M10, 1 x compensator with air vent valve, 2 x
gaskets
18 56 60
RV-W Frame connection set for joining several
mounting frames in landscape installations.
1 x collector strip, 2 x locking brackets, 2 x
gussets, 1 set of nuts and bolts M10
22 06 13
RA Frame support for mounting frames on tiled and
corrugated roofs.
2 x strips, 4 x pivoting bracket, 1 x brace, 1
set of nuts and bolts M10, 1 set of nuts and.
bolts M6
18 56 61
Collector strip required in connection with frame
support RA for installations on corrugated roofs.
1 x collector strip 22 01 94
2.5.2. Solar heating system accessories
Item Part no.
Corrugated stainless steel hose, as roof outlet (2 no.) 07 34 69
SOKI plus, solar compact installation 22 04 58
SOKI 6 plus, solar compact installation with integral SOM 6 plus control unit 22 04 59
SOKI 7 plus, solar compact installation with integral SOM 7 plus control unit 22 04 60
Cylinder connection set SAS SOKI for SOKI plus, SOKI 6 plus and SOKI 7 plus 22 04 63
SOKI SBK-M, solar compact installation for solar heating combi cylinder SBK 600/150 07 42 43
SOM 6 plus, temperature differential controller for one consumer 22 04 62
SOM 7 plus, temperature differential controller for two consumers 22 04 61
SOM 6/3 D, temperature differential controller for three consumers 07 32 23
SOM 8, comfort control unit 07 43 50
Collector sensor well, 1 no. per control unit 18 53 07
H -30 L, heat transfer medium, 10 litre can 07 32 21
H -30 L, heat transfer medium, 20 litre can 07 32 22
Expansion vessel, 18 litres 07 40 30
Expansion vessel, 25 litres 07 40 31
Expansion vessel, 50 litres 18 78 68
SBB 300 plus, vertical solar cylinder for DHW heating 18 78 73
SBB 400 plus, vertical solar cylinder for DHW heating 18 78 74
SBB 600 plus, vertical solar cylinder for DHW heating 18 78 75
SBK 600/150, solar heating combi cylinder 07 40 67
SBP 700 E SOL, buffer cylinder 18 54 60
SBB 400 WP SOL, vertical cylinder for DHW heating by heat pumps in conjunction with solar heat-
ing systems
18 55 21
2.6 Installation
To protect the system against frost and
corrosion, fill the solar heating system
exclusively with H -30 L or H -30 LS (section
2.13). The type-testing is limited to single
hydraulic assemblies of no more than 30
individual collectors. Larger systems require
individual approval.
Commercial systems, the open content of
which exceeds 10 litres and not more than 50
litres (6 to 30 collectors), require notification to
the relevant local authority [in Germany - check
local regulations].
Pipework installation
Use copper pipes, stainless steel pipes or cor-
rugated stainless steel pipes for the flow and
return lines.
Recommended pipe diameter
- up to 4 collectors: Ø 18 x 1
Provide all pipe runs to the building interior on
site. Ventilation tiles are recommended as roof
ducts for tiled roofs with a more severe inclina-
tion; for flat roofs and corrugated roofs with
lesser inclinations routing the pipes through
an external wall is recommended. Prevent
pipes being sawn off (swarf). We recommend
trimming pipes with pipe cutters, that avoid
the creation of swarf. Earth the pipework in
accordance with current regulations. Connect
all pipework with the building earth over the
shortest possible distance.
Solder lines
Solder lines must be brazed. For this, observe
the DVGW Code of Practice GW 2 [or local
regulations]. Use solder to DIN EN 1044: CP105
and CP203; use both without flux. Only solder
gunmetal and brass fittings with flux F-SH-1 to
DIN 8511. Other flux could compromise the cor-
rosion resistance.
Alternative lines
Seal lines made with locking ring fittings, press
fittings and corrugated hoses with suitable
sealants. Seals must be resistant to glycol and
temperatures up to 180 °C.
Roof outlet/duct
Two flexible corrugated stainless steel pipes
are used to connect the collector array with the
pipework installation. These corrugated pipes
can be fitted with flat packing gaskets and
union nuts to the collector fittings or the col-
lector sensor well. These roof outlets are fac-
tory-fitted with temperature and UV-resistant
thermal insulation.
Nominal flow rate
The nominal flow rate for a collector array
(max. 5 collectors) is 100 to 300 l/h.
All collector arrays must be connected in
parallel. The flow rate in every additional
collector array is added to the total, in a system
with 3 x 3 collectors, the flow rate would be
300 to 900 l/h.

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ASystem diagram: Installation example
Controller
SOKI
Cylinder
Safety equipment to DIN 1988
Alterna-
tive re-
heating
(boiler)
HR
Heating circuit shown without
safety equipment
Manual air
vent valve
Temperature sensor inside the collector sensor well
HV
Collector array
Collector vessel
Expansion vessel
Pump with inte-
gral system air
vent valve
Shut-off valve for:
- filling
- draining
- flushing
Temperature sensor
with heat conducting paste
Thermal insulation
Roof outlet/duct
(corrugated hose)
Heat transfer medium
(flow direction)
Collector sensor well
Fitting
Minimum insulation thickness for
pipework to EnEV [Germany]
Internal diameter of the pipework/valves Minimum thickness of the insulating layer, relative
to a thermal resistance of 0.035 W/(mK) at 40 °C
to 20 20
above 20 to 35 30
from 40 to 100 identical DN
in excess of 100 100
For insulation material with a different thermal resistance, re-calculate the thickness of the insu-
lating layer.
C26_05_01_0061
B
26_05_01_0082
Thermal insulation
Use temperature and UV-resistant thermal
insulation to insulate the external pipework,
- mineral wool backed by aluminium mesh foil
- flexible EPDM hose
(e.g. type Aeroflex®, Armaflex®)
A rigid aluminium sheath is recommended
as protection for the mineral wool. The EPDM
hose can be finished with UV-resistant paint.
Where required, protect the thermal insulation
against bird or rodent attack. Insulate all lines
in accordance with EnEV2002, appendix 5; e.g.
relative to a thermal resistance of λ= 0.035
W/(mK) with a pipe diameter of DN 20, select a
minimum thickness of d = 20 mm.
Apply the thermal insulation after pressure
testing and checking the system for leaks.
Cylinder
In a standard solar heating system, the
collectors connected in series are linked to the
solar DHW cylinder 300-600 l.
Observe the cylinder installation instructions.
Cylinder sensor
The cylinder sensor for the SBB ..plus cylinder
is fitted into the sensor well of the lower
internal smooth tube heat exchanger. Coat
the collector sensor with heat conducting
paste and insert it into the sensor well until it
bottoms out.
Secure the sensor and its lead (e.g. cable tie).
Collector sensor well
A B The collector sensor well can be
positioned at the upper l.h. or r.h. side of the
collector. For this, install the sealed-in collector
sensor well on the collector. Coat the collector
sensor of the control unit with heat conducting
paste and insert it into the collector sensor well
until it bottoms out.
Secure the lead.
Provide the collector sensor well and the roof
outlet with thermal insulation, which must be
tightly sealed and must be temperature and
UV-resistant.
Also protect the thermal insulation against bird
attack.
Installation example
AThe system diagram shows the general
system layout of a solar heating system used
for DHW heating.

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Air vent valve
Install a manual air vent valve (lockab- le) at the high points of the system;
alternatively route a ventilation line to a ma-
nual air vent valve. Never use automatic air
vent valves.
Safety
Never install any shut-off valves in the line between the collectors and the
safety valve. The safety valve responds at 6
bar pressure.
The safety valve drain must terminate (in
accordance with DIN 4757) in a container that
can hold the contents of the entire system. For
this, the empty heat transfer medium container
is sufficient in smaller systems.
Non-return valve
As standard, the SOKI is equipped with a non-
return valve (can be reset) designed to prevent
the cylinder losing heat.
Drain facility
Install a drain valve at the lowest point of the
system.
Expansion vessel
The expansion vessels are designed for an
operating pressure of 6 bar and are resistant to
H -30 L or H -30 LS.
The inlet pressure is 3 bar; check it when the
system has not been filled. This pressure must
never be reduced.
Installation information
Check the roof construction for perfect condition (static calculation required,
if necessary check with the builder). All
roofing work must be carried out by a profes-
sional roofing contractor. When working on
roofs, observe all relevant safety regulations,
in particular "Safety regulations for work on
roofs" and "Safety and recovery harnesses"
[or local regulations].
Transport
CThe collector can be pulled onto the roof
over a ladder. For this, place a rope around the
entire collector frame.
Never connect this rope to the collector
connectors.
Installed height
According to DIN 1055, these collector frames
are designed for a maximum installed height
of 20 m and a snow load of 1.25 kN/m² (this
corresponds to a standard snow load of 1.2 kN/
m² according to the ÖNORM B 4000 part 4).
For hydraulic reasons, never link up more than 5 collectors in series. Ar-
range the individual linear arrays parallel to
each other.
Rope
Never secure on the ends of pipes.
When working on roofs: Observe the relevant safety regulations.
a (roof width)
Roof area
a/8
a/16
b/2
Edge region
b (roof length)
a/2
a/8
a/16
Corner region
Required tools
The following tools are required for the in-
stallation:
– drill with 6.5 mm drill bit
– 18 mm drill bit for installations on cor-
rugated roofs
– 2 no. open ended spanners, size 10
– 1 no. open ended spanner, size 15
– 2 no. open ended spanners, size 24 (for
installation on corrugated roofs)
To connect the collectors:
– 1 no. open ended spanner, size 32
– 1 no. open ended spanner, size 28
Standard snow loads for Germany
When installing solar collectors, observe that
different minimum angles of inclination must
be applied to the collectors for snow load
zones 1 to 3. This also assumes that snow can
slide off the roof without hindrance.
Height in
m above
sea level
Snow load zone
11a22a3
100 •••••
200 •••••
300 •••••
400 ••••> 32°
500 •••> 35° > 39°
600 ••>37° > 41° > 44°
700 ••> 41° > 45° > 48°
800 •> 36° > 45° > 48° >50 °
900 > 35° > 40° > 48° > 50° > 52°
1000 > 39° > 43° > 49° > 52° > 53°
1100 > 42° > 46° > 51° > 53° > 54°
1200 > 44° > 48° > 53° > 54° > 55°
1300 > 47° > 49° > 54° > 55° > 56°
•: Any angle of inclination (s. specication)
* : In accordance with relevant Planning Authority
Ice load
The standard snow load must also never be
exceeded through the formation of snow traps,
snow drifts and ice.
Edge and corner regions
DSecure the mounting frame for the
collectors outside the edge and corner regions
in accordance with DIN 1055 part 4 [or local
regulations].
C26_05_01_0237
C
26_05_01_0026
D
Height in m
above sea
level

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E
G
F
2.7 Installation on tiled roofs
portrait side-by-side
(up to 20 m installation height)
ETwo tiled roof fixing kits (18 55 44) are
required when installing a collector in portrait
orientation on a tiled roof; from two collectors
upwards, the BP fixing kit is required in the
same number as that of the collectors to be
installed.
Two mounting frames are available:
FR1 (22 04 56) for 1 collector, portrait
GR2 (22 04 57) for 2 collectors, portrait
Preparations:
For each BP fixing kit, provide at least 4 no.
woodscrews 8/80 on site.
Method:
Select the fixing location; consider later pipe
ducts/outlets through the ventilation tile, etc.
Remove or push aside the tiles to secure the
lower roof hooks (3) down to the next rafter.
Determine the fixing position of the lower roof
hooks (3) on the rafter. For this, the roof hooks
must be located in the valley of the corruga-
tion.
H I The roof hooks should be centred at
approx. 1220 mm (+/- 200), subject to the posi-
tion of the tile valley. The support plates (2) can
be used to compensate for different heights.
Secure the roof hooks (3) on the rafter with at
least two woodscrews 8/80. Tie a guide line
between both external roof hooks on which
the installation of all further roof hooks can be
oriented.
I J Determine the fixing position of the
upper roofs hooks similar to that shown in Fig.
I and J.
KFit the upper roof hook so that a dimension
of 2194 mm (-400 mm) is maintained between
the slots in the roof hooks.
Hook the tiles back into place.
Locking bracket (9)
Expansion joint (11)
Gaskets (10)
Profile rails (7)
Mounting frame R2 (22 04 57)
Nuts M10 (5)
Screws M10 (6)
Collector strip (1)
Roof tile fixing kit BP (18 55 44)
Nuts M10 (5)
Washers M10 (4)
Roof hooks (3)
Screws M10 (6)
Support plate (2)
Roof hooks (3)
Locking bracket (9)
Nuts M10 (5)
Screws M10 (6)
Profile rails (7)
Mounting frame R1 (22 04 56)
R1: 900 mm +/- 200 mm
R2: 1200 mm +/- 200 mm
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10
11
JFit the collector strip (1) to the roof hooks
(3) (set of bolts, washers and screws M10 from
the BP kit, 18 55 44).
JInitially, secure the collector strip (1)
through the second hole to the first lower roof
hook. Secure the upper roof hook is using a
suitable slot to the collector strip.
The first and last holes in the collector strip are
provided for securing the profile rails (7).
JKFit the upper profile rail (7) to both col-
lector strips (1) through the upper hole.
BI For this ensure, that the profile rail is sup-
ported on the wide side of the collector strip.
Fit the lower profile rail to both collector strips
through the lower hole.
Where several mounting frames are used, con-
nect these to each other with frame connection
sets (section 2.13).
Have an expert carry out the lightning protec-
tion measures (section 2.16)
Position and connect the collectors in accord-
ance with the description in chapter 2.17.
Then re-tighten all screws.
Installation situation
Roof hooks (3)
Portrait 1910 mm (-400 mm)
Fitting with roof
hooks (3)
Hole for fixing the
profile rail (1)
Hole for fixing the
profile rail (1)
Fitting with roof
hooks (3)
Profile rail (7)
Roof hooks (3)
Collector strip (1)
Locking bracket (9)
I
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