WIKORA Wikosun 2020-Mi User manual

© Wikora GmbH Page 1 Status: Mai 2011
Errors excepted.
WIKORA GmbH
89568 Hermaringen
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Installation manual
In roof mounting
Flat plate collectors
Wikosun 2020-Mi / 2340-Ti
roof angles from 25°to 87°
Installation and commissioning should be
undertaken by a specialist.
General terms and conditions of warranty state that
all installations must be performed by a suitably
trained and qualified plumber by taking into account
local norms and regulations.
Factory warranty will only be covered if the
installation instructions are followed.
Warranty does not cover any damages, caused by
non-observance of this manual.
The correct functioning is only guaranteed if the
installation instructions are followed.
The system is to be checked annually by a
specialized company. Independently, occurring
defects must be repaired immediately.
This document should be handed over to the
client on completion of works.
Index
1 Mounting accessories ...................................................................................................................................................................................3
2 Installation ......................................................................................................................................................................................................4
3 Planning and layout data for collectors ....................................................................................................................................................10
4 Technical data..............................................................................................................................................................................................11
5 General operation and maintenance instruction.....................................................................................................................................11
6 Safety instructions .......................................................................................................................................................................................13
8 Warranties .................................................................................................................................................................................................... 15
9 Installation and maintenance record ........................................................................................................................................................16

© Wikora GmbH Page 2 Status: Mai 2011
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Pos. No. Description
1
2
3
4
5
6
7
8
Collector 2020-Mi / 2340-Ti
Clamp and positioning clip U-shape
Parallel compression fitting 22mm
Compression -T-fitting 22x22x1/2“, collector flow (hot)
Sensor pocket ½“x 100mm, with cable bushing
Compression plug 22mm
Compression-elbow 22mm
Collector support bracket
Chart 1: Part list

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1 Mounting accessories
1.1 Mounting kits
Collector mounting kits are available as follows:
Mounting kit Content Amount
Kit for two collectors
ST-IDM-2Z, tile (2020-Mi)
ST-IDM-2.1Z, tile (2340-Ti)
ST-IDM-2.1S, slate (2340-Ti)
Lower flashing incl. flexible gasket strip, left 1
Lower flashing incl. flexible gasket strip, right 1
Side flashing, left 1
Side flashing, right 1
Upper flashing, left 1
Upper flashing, right 1
Center flashing, middle, long 1
Center flashing, middle, short 1
Sheet metal screw 2
Sheet metal screw 1
Hanger support bracket, VA 4
Fixing hook with nails 8
Clamp and spacer bracket 8
Hex head wood screw 5 x 35 12
Hex head wood screw 6 x 30 8
Extension kit
ST-IDM-1Z, tile (2020-Mi)
ST-IDM-1.1Z, tile (2340-Ti)
ST-IDM-1.1S, slate (2340-Ti)
Lower flashing incl. flexible gasket strip, middle 1
Upper flashing, middle 1
Center flashing, middle, long 1
Center flashing, middle, short 1
Sheet metal screw 1
Hanger support bracket, VA 2
Clamp and spacer bracket 4
Hex head wood screw 5 x 35 6
Hex head wood screw 6 x 30 4
Universal connection kit
ST-ADM-V
Aluminum elbow 2
Hex head screw M8 x 20mm + nut M8 VA 8
Lock washer M8 8
Standard connection kit
ST-AVS-2S
Parallel compression fitting 22 x 22 mm 2
Compression elbow 22 x 22 mm 1
Compression sealing plug 22mm 2
Compression -T-fitting 22x22x1/2“, collector flow (hot) 1
Sensor pocket ½“x 160mm, with cable bushing 1
ST-AVS-1S Compression fittings 22 x 22 mm 2
Flexible tube kit
ST-ADF-1
Flexible stainless steel tube with Cu-joints 22mm 2
Chart 2: Mounting accessories
Prior to installation:
•Check the content of the delivery with the delivery note!
•Read the installation instructions carefully and pay attention to the different steps!
•Respect the safety instructions!
Necessary tools Application
Socket key or ratch with extension SW 13
Combination spanner SW 13
Open-ended spanner SW 21
Open-ended spanner SW 32
Pipe tongs
Drill d=2,0 mm
Angle grinder (hammer and chisel)
Screwdriver, cross
Hammer
Installation of rafter brackets and kiln furniture
Sensor pocket
Parallel compression fitting
Pre-drilling of rafter brackets
Removal of drainage area
Tightening of wood screws
Driving nails
Chart 3: Tool list
1.2 Transport and storage of collectors
Collectors should be transported in their packaging horizontally (glass facing upward) or vertically. It must be ensured that
collectors can at any time be safely put down (e.g. tilting danger by wind, endangering of other people). Collectors should never
be put down over the edge! Please take special precaution while transporting the collectors on the roof. If collectors can not be
put down at any time and/or if a risk of slipping exists, auxiliary material like safety ropes should be used.
Store collectors in closed and sun-protected areas either horizontally with the glass facing upward or in an upright position. Do
not stack collectors on their connectors.

© Wikora GmbH Page 4 Status: Mai 2011
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2 Installation
2.1 Positioning of collectors
In order to protect the roof against entering humidity (snow,
rain) a foil leading into the gutter should be placed below the
collector surface.
Wind loads on roofs can create suction forces on the solar
collectors. In order to minimize suction forces, the distance
between the outer edge of the roof and the collector should
be minimum 70 cm (about 3 tiles). The distance from the
roof ridge should be approx. 2 tile rows.
2.2 Measure and open the roof area
Measure the area of the collector field on the roof and define the position of the collectors.
The supporting area of the collectors must be sufficiently stable. If the distance between the battens or the rafters is too big,
additional battens should be inserted.
Number of collectors 2 3 4
Width of collector field (mm) 2950 4075 5200
Number of tiles to be widened per tile row, covering width 30 cm 11 15 19
Number of tiles to be widened per tile row, covering width 20 cm 16 21 27
2.3 Preparationofthecollectors
To facilitate the work on the roof, following activities should be undertaken on the ground.
Seal the sensor pocket and screw it together with the compression T-fitting. Afterwards, put the compression T-fitting, the
fitting, the sealing plug and the bracket onto the absorber pipes and tighten carefully. Please take care of the immersion depth
and hold it with a second wrench.
The collectors should be lifted onto the roof by taking into consideration the local conditions and safety regulations.

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2.4 Installation of the collectors and the flashings
Mark the left and the right edge of the collector field on the battens.
Depending on the distance of the battens an auxiliary batten must be
installed to support the lower flashings.
Lower flashings incl. flexible gasket strip are installed from the left to the
right and should protrude the collector field on both sides by about 32-35
cm. The lower flashings should be put with the folded edge on the upper
edge of the main batten.
Position the hanger support brackets (distance between the hanger support
brackets of ca. 80 cm) und pre-drill the lower flashing.
Screw the hanger support brackets and the lower flashings to the batten (3
wooden screws 5x35 mm).
Install further lower flashings overlapping and as previously mentioned.
Adjust the flexible gasket strip by hand or with the hammer shaft to the
tiles. Depending on the type of tiles, adjust the tile carefully by using an
angle grinder or a hammer.
Lower the collectors on the hanger brackets (Pos. 8), center them and
tighten the parallel compression fitting between the collectors.

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Mount the flexible tube and tighten the parallel compression fitting. Put the
sensor into the sensor pocket as far as it will go. Screw carefully the cable
sheet on the sensor pocket.
Attention: The collector temperature sensor is not part of the in roof
mounting kit but part of the controller.
Position 2 clamp and spacer brackets between the collectors and the upper
and lower side of each collector and screw it on the batten with wooden
screws 6x60 mm (Pos. 2).
Before installing further flashings, the collectors should be pressure
tested with 6 bar independently from the rest of the solar system!
Position the left side flashing from the side on the collector and nail it with 3 fixing hooks onto the batten. Repeat the same
procedure with the right collector and the right side flashing.
Bend the long center flashing up and slide it down between the collectors. Bend the lower flashing lip and push it under the
collector.

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Bend the upper flashing lip and push it under the collector.
Depending on the distance of the battens, an auxiliary batten must be
installed for the mounting of the upper flashing in order to support the center
flashing.
Position the upper flashings over the side flashings.
Secure upper left and right hand flashings to side flashings with the supplied
screws. Fix it with one hook from the side on the batten.

© Wikora GmbH Page 8 Status: Mai 2011
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Fix the two self adhesive sealing strips and position sealing cover. Press down sealing cover and strip into position. Then
secure strip with screw and fiber washer supplied and fold sealing strip over flashings.
Cover the flashings with the missing tiles and adjust them if necessary.

© Wikora GmbH Page 9 Status: Mai 2011
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2.5 Installation of collector temperature sensor
The collector temperature sensor is part of the controller. It is to be installed at the flow of the system (hot water side). Put the
sensor into the sensor pocket (11) as far as it will go. Apply a heat-conductive paste onto the sensor to improve the heat
transfer. Screw carefully the cable sheet on the sensor pocket.
The 1 m cable is laid with the pipe work through the roofing. The cable can be extended in the interior
(2 x 0,75²). For the connection of the temperature sensor cable with the controller the use of an over voltage protection
(protection against over voltage damages) is recommended.
2.6 Installation of pipe work
Install the pipe work
•on shortest way to minimize losses.
•with a complete high temperature insulation (100% according to EnEv).
•rising to the collector to prevent air cushions.
2.7 Hydraulic pressure test
•After a successful installation, rinse the entire collector circulation with water!
•Before commissioning, the collector circulation must be checked with a water pressure of 6 bar !
•If the solar heating system is not commissioned immediately after installation, the collector area must be covered!
•Before filling the system with heat transfer fluid, the system must be completely purged!
Open the lower plug at the collector field to purge the system.
Subsequently, the system is to be filled with a water-antifreeze-mixture. Please refer to chapter 7 „Antifreeze“ for it’s
preparation. The liquid capacity amounts to 1,4 Liter for Wikosun 2020-Mi and 1,6 Liter for Wikosun 2340-Ti.
Once the mixing is completed (recirculation lasting several hours), the antifreeze concentrate should be checked with an
antifreeze testing tool.
Important:
Please note that only a solar concentrate released by Wikora may be refilled. Solar concentrate must be prepared according to
manufacturer’s specifications with clean, ph-neutral and lime-free water. Please use an antifreeze controller to ensure the
antifreeze capacity. If another solar concentrate is applied, the warranty expires automatically. Moreover, damages that are
due to an insufficient antifreeze protection are not part of the warranty.
The installation instructions of solar stations, solar controllers and connecting kits must be considered separately!
2.8 Regulation of flow rate (Taco-Setter)
The set-up of the flow rate according to our
instructions is important for an efficient
functioning of the system (see chart page 7).
When setting-up the flow rate, please pay
attention to the scale of the taco-setter used (see
sample fig. 11).
Scale WIKORA Solar stations:
WIK-PG 20/12 - floater bottom edge
WIK-PG 25/14 - floater upper edge
WIK-PG 25/30 - floater upper edge
WIK-PS 25/14 - floater upper edge
WIK PS 25/30 - floater upper edge
Fig. 11 : Scale

© Wikora GmbH Page 10 Status: Mai 2011
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3 Planning and layout data for collectors
Recommendation:
System pressure
Primary pressure of expansion vessel
Flow rate
Switch-on temperature difference of controller
Switch-off temperature difference of controller
3,0 bar
2,5 bar
120 l/(h x collector)
7 to 15 K *
3 to 8 K * (*internal to the plant)
Please note that for the layout of the collector circuit, the solar tube circuit and the heat exchanger circuit, the corresponding
pressure losses and the total pressure loss in combination with the desired flow rate must be considered.
Furthermore, please note that the calculation of the piping cross-sections must be carried out under the aspect of the
necessary flow velocity for solar installations from min. 0.4 m/s up to max. 1,5 m/s with the required flow rate liter/h.
Moreover, it must be considered that the hydraulic faulty wiring results in a system specific and demand specific flow rate which
involves a loss of pressure. This again has an influence on the layout of piping cross-sections, solar medium capacities, pump
pressures, flow-meter set-ups and flow-meter configurations as well as on their number.
The values indicated in chart 4 apply only for pipe works up to an overall length of 40 m and heat exchangers with a capacity of
16 l.
Number of collectors 2 3 4 5 6 7 8 9 10
External diameter
of the connection pipe in mm
Flow rate in l/min
Flow rate in l/h
Expansion vessel in l
15
4
240
18
15
6
360
18
18
8
480
25
18
10
600
35
18
12
720
35
18
14
840
35
22
16
960
50
22
18
1080
50
22
20
1200
50
Chart 4: Reference values for pipe work size, flow rates and diaphragm type expansion vessels.
Each solar system needs an adequate and competent planning and execution. Please note that only a specialized
company is responsible for the layout of piping cross-sections, the layout of diaphragm type expansion vessel, the
determination of the solar pump group as well as the necessary flow-meter. Our data do not relieve of a special planning.
3.1 Hydraulic faulty wiring possibilities
Up to 10 collectors can be connected in parallel. The connections between the collectors must be realized with copper tubes of
22 mm. The collector fittings must be prepared with the corresponding compression fittings. This is to guarantee the
exchangeability of the collectors (enlargement of the system or change of system).
Crimp connections in the pipe work system are allowed. Seals must be approved for use in combination with solar systems and
temperatures up to 200°C. In case of a multiple-line installation, the return (cold water connection) should be located at the
collector line on the bottom.
Fig. 6: Installation in one line (6l/min)

© Wikora GmbH Page 11 Status: Mai 2011
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4 Technical data
Description WIKOSUN 2020-Mi WIKOSUN 2340-Ti
System Flat plate collector Flat plate collector
Collector gross surface 2,024 m
2
2,353 m
2
Absorber surface 1,810 m
2
2,138 m
2
Aperture surface 1,837 m
2
2,142 m
2
Frame Aluminum extruded profile Aluminum extruded profile
Dimensions:
Length x width x height 2018 x 1000 x 100 mm 2150 x 1090 x 100 mm
Weight 39 kg 44 kg
Cover 3,2 mm safety glass, super transparent, hailstone safe 3,2 mm safety glass, super transparent, hailstone safe
Connections Cu-tube d=22mm d=22mm
Thermal insulation:
Rear wall 30 mm of mineral wool (70kg/m³) with glass fiber 40 mm of mineral wool (70kg/m³) with glass fiber
Side wall 30 mm of mineral wool 30 mm of mineral wool
Absorber:
Material Copper on aluminum plate Copper on copper plate
Absorber coating Mirotherm Tinox
Pressure loss:
50\,l/h 120 Pa/collector 130 Pa/collector
100\,l/h 250 Pa/collector 275 Pa/collector
150\,l/h 400 Pa/collector 430 Pa/collector
Efficiency η= 79,1 η= 80,2
Peak power 1423 Watt per collector 1713 Watt per collector
Capacity 1,4 Liter 1,6 Liter
Max. working pressure 10 bar 10 bar
Stagnation temperature 206°C 208°C
Installation on-roof, flat-roof ( 20 – 60°)
in-roof (25 – 60°)
on-roof, flat-roof (20 – 60°)
in-roof (25 – 60°)
Return:
Collectors can be returned to Wikora after use. All collector material will be recycled accordingly by Wikora.
5 General operation and maintenance instruction
Present operation and maintenance instruction and the compliance with it in combination with the installation and maintenance
record is part of the guarantee and warranty!
Operation
•Your Wikora solar heating system is preset according to the present installation and maintenance record. In general,
there is no need of changing the preset parameters.
•Please do not change the preset parameters by yourself. You will lose any warranty and guarantee claim.
•If you do not conform to the preset parameters, please let them change and document by a specialist.
•The various system parameters can be accessed according to enclosed instruction manual of the controller.
•It is recommended to vent the solar heating system approx. 4 weeks after the initial operation. This should be
undertaken by a specialist. If you wish to vent the system by yourself, you can do it one-time at the central vent of the
solar pump group.
Venting procedure
•Please switch off your solar heating system in the evening.
•Open the air valve at the central vent by using a radiator vent key. Once liquid pours out, close this air valve. The
procedure is terminated.
•Switch on again your solar heating system.
•Please never vent at sunshine or running pump!
•Please do not undertake an additional venting process. If the system’s working pressure drops later on or if the
system does not give any heat, please call a specialist.
Maintenance of solar heating system
•Your Wikora solar heating system is a closed heating system. It corresponds to the safety regulations of DIN 4751,
DIN 702 and DIN 721.
•Such systems have to be built and maintained exclusively by qualified and specialized companies.
•Please do not refill water in case of pressure loss but call a specialist for assistance.
•Only a solar concentrate released by Wikora may be refilled.
•The valid system working pressure is shown in the installation and maintenance record and corresponds to 3.0 bar, in
general.
•Please do never remove the drain bottle under the exhaust line of the safety valve which is to collect the blast solar
liquid in case of over pressure.
•The solar heating system and the condition of the solar concentrate are to be checked and documented annually by a
specialist. Otherwise, any guarantee and warranty claim expires.

© Wikora GmbH Page 12 Status: Mai 2011
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Setting-up operation
Date: ……………………..
Company: ………………….............................................................................................................
Name: ………………….............................................................................................................
5.1 Evidence of maintenance
Date Name / Company Executed activity Kg refilled sole Color medium
1
□uncolored
□brown
□black
□cloudy
2
□uncolored
□brown
□black
□cloudy
3
□uncolored
□brown
□black
□cloudy
4
□uncolored
□brown
□black
□cloudy
5 □uncolored
□brown
□black
□cloudy
6
□uncolored
□brown
□black
□cloudy
7
□uncolored
□brown
□black
□cloudy
8
□uncolored
□brown
□black
□cloudy
9
□uncolored
□brown
□black
□cloudy
10
□uncolored
□brown
□black
□cloudy
Chart 5: Evidence of maintenance

© Wikora GmbH Page 13 Status: Mai 2011
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6 Safety instructions
The installation of collector and solar components must comply with the local regulations and conditions. Technical
standards and rules have to be respected.
7 Antifreeze
7.1 Product information solar liquid L concentrate (WIK-PE 10)
Long-term antifreeze concentrate with corrosion inhibitors for cooling and heating systems with systems of solar and
heat pump.
Product properties:
SOLARLIQUID L concentrate is an odorless liquid based on monopropylenglykol.
It can be used in the sector of food and DHW as cooling brine or heat transfer liquid.
The special corrosion inhibitors protect the metal and plastic materials which are commonly used in construction against
corrosion, aging and incrusting in order to maintain the efficiency of the system over a long time period and up to 250°.
SOLARLIQUID L concentrate is entirely mixable with water and other antifreeze on basis of propylene glycol. It is delivered
unblended and ensures an antifreeze protection until –50°C.
The product is slightly harmful to water (self classification according VwVwS of May 17, 1999, appendix 4).
It is not hazardous material in the sense of transport regulations.
Gaseous state
Color
Odor
Boiling point
Density
pH-value
Viscosity
Water solubility
Specific humidity
Responsiveness
Flashpoint
Explosion risk
liquid
Purple-blue
odorless
151°C
1,041 g/cm³
8
70mm²/s
any proportion
<4; hygroscopic liquid
reacts with strong oxidizers
develops flammable vapors
none
Chart. 6: Product data of solar concentrate at regular state (20°C; 1 bar)
The concentration must only be diluted with potable water or demineralized water (chloride concentration < 100mg/l). Prepared
mixtures are also available.
Share SOLARLIQUID L
in volumes %
Density
in g/cm³
Freezing point
in °C
25
30
35
40
45
50
55
1,020
1,025
1,029
1,032
1,037
1.040
1,043
-10
-14
-17
-21
-26
-32
-40
Chart. 7: Antifreeze protection with different mixing ratios
The concentrate and the prepared mixtures can be stored up to 5 years. According to the direction of hazardous materials, no
specific labeling is required (see safety data sheet).
The indications mentioned in the product information and the safety data sheet are based on our technical experience. The
data does not represent any mandatory statement concerning specific properties. The suitability of the product fro a specific
application requires prior consultation.
This product information does not relieve of a delivery control according to HGB 377/378.

© Wikora GmbH Page 14 Status: Mai 2011
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7.2 Safety Data Sheet
According to 2001/58/EG – extract
Printing date: 3.06.2008 revised on: 21.04.2008
Product information
Commercial name
Article code
Application
Decomposition products:
Supplier
Solar liquid L Concentrate
391100
Antifreeze / Solar liquid of solar heating systems
Carbon monoxide and carbon dioxide
Staub & Co. Chemiehandelsgesellschaft mbH
Ostendstraße 124
90428 Nürnberg
Tel.: [phone]
Emergency: Giftnotruf Universität Mainz - Tel.: [phone]
General safety and hygienic measures
The usual precautionary measures while handling chemicals are to be considered
•Soiled and soaked clothes should be taken off immediately.
•Wash your hands before breaks and after end of work.
•Don’t eat, drink and smoke during work.
•Don’t inhale gases, vapors and ensure sufficient ventilation.
•Wary protection equipment; unprotected persons should be kept away.
•Eye protection: wear safety glasses during the filling procedure.
•Respiratory protection: wear respiratory protection during aerosol or fog formation.
•Hand protection: Use protection gloves of butyl rubber, nitril rubber/nitrillatex
The product doesn’t require any specific labeling according to the last version of the ,,Allgemeinen Einstufungsrichtlinie für
Zubereitungen der EG''.
Keep the liquid out of the reachability of canalizations or waters. It the product enters the soil, waters or canalization, please
inform the local authority in charge.
Cleaning: clean with liquid binding material (sand, kieselguhr, acid binder or universal binder). Recycle contaminated material
separately.
Keep the concentrate in a cool and dry environment. Protect against humidity and water. Provide sufficient ventilation during
work.
First aid
If the product gets in contact with the eye, a slight irritation can occur.
•After inhalation: take fresh air and consult a doctor in case of medical condition.
•After skin contact: wash immediately with water and soap.
•After eye contact: wash the open eye for several minutes. Consult a doctor in case of medical condition.
•After swallowing: rinse the mouth and drink plenty of water. Consult a doctor in case of medical condition.
•After contact with cloths: remove soiled clothes immediately.
Fire fighting
•Suitable fire extinguishing agents: CO2, solid extinguishing agent or water. Fight larger fire with water jet or alcohol-
steady foam. Cool tanks at risk with water jet. Collect contaminated fire water separately. It must not reach
canalization.
•Combustion products: carbon monoxide (CO); carbon dioxide (CO2).
•Special protection equipment: carry protective respirator that is not depending on the ambient air.
Recycling
Recycling must be carried out according to local regulations. The waste code number (according to AVV) is to be determined
separately.
The product is only designated for commercial processing / use. The data is based on our today’s knowledge but does not
represent any confirmation of product properties and does not constitute a legal position.
All data according to manufacturer data of Fa. Staub & CO Chemiehandelsgesellschaft mbH

© Wikora GmbH Page 15 Status: Mai 2011
Errors excepted.
8 Warranties
Warranty conditions for Wikora flat plate
collectors. All deliveries and services are
carried out according to our general terms
and conditions.
1. The warranty period for the collector function
amounts to 10 years. Within that period, all parts
proven to be useless or considerably reduced in
their usability due to production or material defects
are repaired or replaced ex works. At expiration of
the legal warranty period, we have the choice
between rectification or replacement.
2. The warranty begins with the delivery of the
collectors to the end user and under condition that
the system has been installed and setup by a
specialized company according to our installation
and operating instructions as well as the locally valid
norms and regulations. Further, the warranty is
dependent on a carefully completed installation and
maintenance record which must be filled out by the
installer and kept by the system owner.
3. The guaranteeing implies that
•the collectors are transported, installed, operated
and maintained according to our installation and
operating instructions,
•all system components originate from WIKORA
GmbH,
•the collector system is exclusively operated with our
solar liquid.
4. The guaranteeing does not refer to damages due to
•wear and tear, excessive wear, inappropriate
operation or inappropriate use,
•use of a unsuitable solar fluid or results of corrosion
provoked by a solar fluid,
•chemical or electro-chemical influences,
•incorrect system layout.
5. Moreover, the warranty does not apply for
•damages as a result of an inappropriate storage of
the collectors prior to installation and
•damages that are ascribed to force majeure,
•The warranty regarding the safety glass refers to its
condition, and here only to manufacturing and
material defects. The cullet security is examined in
the context of the inspection requirements for
collectors and ensured only according to these
requirements.
6. The warranty expires
•if arising and obvious defects are not notified in
writing within 10 days after receipt or hidden
defects immediately after emerging. In case of
hidden defects it is only valid for the warranty
exceeding the legal warranty period,
•if the collectors are changed or maintained by non-
specialized persons or companies or undertaken
without our prior agreement,
•if the possibility to peer the entire system is not
granted or if the collectors are removed without our
agreement,
•if original Wikora components are exchanged by
other components or if inappropriate installation
material and system components as well as no
authorized solar fluid are used,
•if the annual inspection is not realized within the
time limit. The proper execution is to be documented
by the specialized company in charge.
7. Transport damages are to be notified immediately,
stipulated on the delivery note and signed by the
sub-contractor. §447b BGB remains untouched.
8. After the expiration of the legal warranty period, the
warrantee must provide the necessary aide in case
of reparation work and is obliged to assume the
necessary services like transport, installation etc. In
the event of warranty, we recompense
•for on-roof installation max. 200,00 € + VAT for
the first collector and max 80,00 € + VAT for
each additional collector, incl. all consumables.
•for in-roof installation max 300.00 € + VAT fort
he first collector and max. 90.00 € + VAT for
each additional collector, incl. all consumables.
9. This warranty does not justify claims exceeding the
legal liability for physical or personal injuries that
have been caused by the defects of the purchased
object. Redhibitory actions and abatements
exceeding legal regulations are not justified either.
10. Other legal claims for warranty and damages in
respect of BGB and ProdHaftG remain untouched by
this warranty.
11. The exchange or rectification of the collectors or
other parts of the solar system must be carried out
by the installer and only after having consulted
Wikora. Otherwise an entitlement to compensation
does not exist.
12. Notifications of claim are to be announced in writing
to WIKORA GmbH and by presenting the installation
and maintenance record as well as the respective
proofs immediately after the damage is occurred.
13. Solar accessories are subject to the legal warranty.

© Wikora GmbH Page 16 Status: Mai 2011
Errors excepted.
9 Installation and maintenance record
Please complete carefully.
The installation and maintenance record is part of the warranty and will be requested in case of complaints with the corresponding invoice.
□Installation □Maintenance
Contact Data
Name
Company
Street No
ZIP / Town
Phone
Mobile
E-mail
Date
Installer
Brand
(designation)
Type
(serial no.)
Material
Yes No Anode type
Vol. l m
2
□□
Vol. l m
2
□□
I II III
Vol. l
Max.
temperature
Difference in
temperature
Hystere =
Delta t off
°C K K
°C K K
°C K K
°C K K
°C
°C Target : l/min Actual: l/min
System working pressure at
°C bar Target : bar Actual : bar
Visual control
Brand / type
Actual value □rinsed
Filling capacity
Liter ph-value □filtered
Mixing ratio
% antifreeze upto □purged
yes / no
yes / no
yes / no
□with AIR-Stop in the solar circuit
□wiht quick vent valve at collectors
Primary pressure exp. vessel
°C
Type
Cooling function * from
□colour unchanged □brown □black □cloudy
Flow rate
Ø , m
System - settings
(Controller setting = *)
Consumer 1* = e.g. DHW
Consumer 2* = e.g. buffer tank 1
System
Minimum value
7
-25°C
Insulation
Thickness mm
Solar liquid
Consumer 3* = e.g. buffer tank 2
Consumer 4* = e.g. swimming pool
Max. collector temperature*
Backup heat target temperature*
Material overview
Characteristics
(dimensions)
Collector
Pipeline (single)
Tank 2
Controller
DHW system
Heat exchanger
Expansion vessel
Installer
First installation Last maintenance
Solar pump
Level
Final customer
Tank 1
For stainless steel tank(s):
Additional corrosion protection needed?
(please consider indications of the local
water supplier)
In case of quick vent valve, please add drawing.
How is the solar ventilation system designed?
Space heating
DHW-mixing valve
Number of collectors
S / SE / SW / E / W ca. Grad
Mounting type
OR / IR / FR / horizontal / vertical
single row / double row / parallel / series
Hydr. connection
Orientation/Pitch

© Wikora GmbH Page 17 Status: Mai 2011
Errors excepted.
□ok □ok
□ok □ok
□ok □ok
□ok □ok
□ok □ok
Meter reading
Pump 1 h Pump 2 kWh
□yes
□yes
□annually
Remark : Please add proof of invoice.
Inspection interval
□no
□no
General checklist
System is grounded
Collector fastening is stable
User has been instructed
Maintenance contract
Operation of pumps checked
Temperature sensores indicate realistic values
Collector interior is not fogged
Collector is clean
Date, signature and stamp of solar company Datum, signature of customer
Return valves
DHW-mixing valve
Solar liquid for re-filling is available
Anode(s) checked
h Heat quantity meter
Drawing of collector array
□every 2 years, no later than