Wolf CFK-1 Installation, Operating And Maintenance Instructions

Brand: Wolf

Model: CFK-1

Type: Installation, Operating And Maintenance Instructions

Installation, operating and

maintenance instructions

Rooftop installation with

AluPlus installation system

Roof integration

Flat roof installation with

AluPlus installation system

High performance solar collector

CFK-1

Art.no.3062815_0110Subjecttotechnicalmodications

Wolf GmbH, Postfach 1380, 84048 Mainburg, Tel. 08751/74-0, Fax 08751/741600, Internet: www.wolf-heiztechnik.de

3062815_0110

Index

Index ..................................................................................................................... Page

1. Specication ..................................................................................................................3

2 Standards and regulations / Safety instructions ............................................................4

3. Information / Pipework examples ..................................................................................5

4. Information regarding the system hydraulics / Expansion vessels ...............................6

5. General preparations ...............................................................................................7 - 8

6. Rooftop installation (interlocking tile, plain tile) .............................................................9

- Standard delivery .......................................................................................................9

- Standard dimensions .................................................................................................9

- Snow loads ................................................................................................................9

7. Rooftop installation (interlocking tile, plain tile) roof hooks on battens .......................10

8. Rooftop installation (interlocking tile, plain tile) roof hooks on rafters ......................... 11

9. Rooftop installation (interlocking tile, plain tile) collector installation ...........................12

10. Special features to be considered for rooftop installation on slate roofs .....................13

11. Special features for rooftop installation

corrugated roof / sheet steel roof with double ended screws ......................................14

12. Supported on pitched roofs ..................................................................................15 - 17

- Information regarding the optimum collector angle of inclination .............................15

- Selection of hole size ...............................................................................................15

- Minimum clearance between several rows of collectors ..........................................16

- Standard dimensions ...............................................................................................17

13. Roof integration (interlocking tile) ........................................................................18 - 22

- Standard delivery .....................................................................................................18

- Standard dimensions ...............................................................................................18

- Collector installation .................................................................................................20

- Mounting intermediate panels/frames ...............................................................21 - 22

14. Roof integration (slate roof) .................................................................................23 - 29

- Standard delivery .....................................................................................................23

- Standard dimensions ...............................................................................................23

- Collector installation .................................................................................................25

- Mounting intermediate panels/frames ...............................................................26 - 29

15. Roof integration, high roof tiles (convex - concave tiles) .....................................30 - 35

- Standard delivery .....................................................................................................30

- Standard dimensions ...............................................................................................30

- Collector installation .................................................................................................32

- Mounting intermediate panels/frames ...............................................................33 - 35

16. Flat roof installation ..............................................................................................36 - 37

- Fixing information ....................................................................................................36

- Minimum clearance between several rows of collectors ..........................................36

- Standard dimensions ...............................................................................................37

- Installation of the support frame ..............................................................................37

17. Pipework / Filling the system / Safety datasheet ........................................................38

18. Leak testing / Commissioning .....................................................................................39

19. Commissioning check list ............................................................................................40

20. Operation / Service .....................................................................................................41

21. Service check list .................................................................................................42 - 43

Declaration of Conformity ..................................................................................................44

3062815_0110

Specication

Collector CFK-1

Casing Deep-drawn aluminium tray, natural,

sea-water resistant.

Dimensions (L x W x H) / (external edge) 2099 x 1099 x 110 mm

Gross surface area/surface exposed to wind

acc. to DIN 1055-4

2.3 m²

Effective absorber area 2.0 m²

Weight (dry) 36 kg

Content 1.1 litres

Absorber: Laser-welded aluminium absorber

Style: Harp, highly selective coating

Cover 3.0 mm solar safety glass, hail-proof *

Thermal insulation Mineral wool

Connections Flat-packing with union nut G ¾"

Angle of inclination 15° to 90°

Opticalefciency* 76.7%

Heatlosscoefcienta

* 3.669 W/(m K²)

Heatlosscoefcienta

* 0.018 W/(m² K²)

Stagnation temperature *

(permiss. operating temp.)

196 °C

Irradiation angle correction factor IAM-50 * 95%

Thermal capacity C * 7.78 kJ/(m² K)

Max. operating pressure 10 bar

Heat transfer medium ANRO ready-mixed (45% by vol.)

Recommended throughput 90 l / (h x number of collectors)

Pressure drop at 90 l/h * 1.5 mbar

Solar keymark register number ????????

* values to EN 12975 relative to the aperture area

1. Specication

3062815_0110

2. Standards and regulations /

Safety instructions

Observe the following regulations, rules and guidelines during

installation and operation.

Installation on roofs. Observe all current Health & Safety regulations

- EN 1991, 2-3 Snow loads

- EN 1991, 2-4 Wind loads

- DIN 1055-5 Snow loads

- DIN 1055-4 Wind loads

- DIN 18338 Roof covering and roof sealing work

- DIN 19339 Plumbing work

- DIN 18451 Scaffolding work

- BGV D 36 Ladders and steps

- BGR 203 Work on roofs

- BGR 198 Use of personal protection against falling

Connection of solar thermal systems

- EN 12976 Solar thermal systems and their components,

prefabricated systems (these include generally applicable

information regarding design and implementation)

- EN 12977 Solar thermal systems and their components,

bespoke systems (including generally applicable

information regarding engineering and implementation)

Installation and implementation of hot water heaters

- EnEV Pipework insulation

- DIN 18380 Heating water and DHW heating systems

- DIN 18381 Gas, water and waste water installation work

- DIN 18421 Heat insulation work on thermal systems

- AVB Water

Electrical connection

- VDE 0100 Installation electrical installations up to 1000 V

- VDE 0185, 1-4 Lightning protection systems

- ENV 61024 Operation of electrical power installations up to 1000 V

- VDE 0105 Cables and lines in buildings

- EN 50164-1 Lightning protection systems

The collectors are tested in accordance with the following standards:

EN 12975-2 Output testing for solar thermal collectors

Standards and regulations

The following symbols are used in conjunction with these important instructions

concerning personal safety, as well as operational reliability.

"Safety instructions" are instructions with which you must comply

exactly, to prevent injury and material losses.

the potentially very high temperatures inside the collector result in a

risk of scalding from the hot heat transfer medium.

"Please note" indicates technical instructions that you must observe

to prevent material losses and equipment malfunctions.

Safety instructions

3062815_0110

3. Information / Pipework examples

Ideally, the collectors should be oriented between south-east and south-west

(optimum: south). Please refer to our technical advisors in case of an alternative

orientation. Trees, neighbouring structures, chimneys, etc. should throw as

little shade over the collectors as possible. Observe the different position of

the sun (summer/winter).

The clearance between the top edge of the solar collectors and the bottom

edgeofthegableshouldbeatleastthreetilesdeeptoenabletheowlineto

be rising inside the attic space.

In areas subject to heavy snow loads ensure that the snow can slide off the

collector. In other words, roof structures below the collector surface must be

avoided. For safety reasons, never damage cross battens or the tile under the

roof hooks (cracked, drilled, aged), otherwise they might break under extreme

snow loads. If in doubt, replace battens and / or tiles in these areas.

It would also be advantageous, when mounting the solar collectors on top of

the roof, if the tiles below the roof hooks were to be replaced by lead tiles.

Observe the snow load in accordance with EN 1991, 2-3 and DIN 1055-5.

Notes

Pipework examples A collector array consists of up to 10 collectors, when connecting pipework on

alternate sides.

Air trap (install at

the highest point)

Pipework on alternate sides

(up to 10 collectors are possible)

Pipework on alternate sides

(up to 10 collectors are possible)

Recommendation:

Piping several collector arrays in

accordance with Tichelmann

3062815_0110

4. System hydraulics expansion vessels

All details are recommendations and may differ from system to system.

Therefore, the diaphragm expansion vessel must be sized specically.

Information regarding the

system hydraulics

Thecollectorscanbeoperatedwithahighspecicthroughput(so-calledHigh-

Flow).Advantages:Thecollectoriswellcooled=highcollectorefciencylevel,

lowheatlossesattheowline.Disadvantages:Highpressuredrop=powerful

pump, large pipe cross-sections.

Throughput: High-Flow (90 l/h x coll), ANRO (45/55) 20 °C

Collector

number

Solar line

length

(m)

Solar

line

Ø (mm)

Pump

assembly

Cylinder

Expansion

vessel 2.5 bar

20 12 x 1 10 SEM-1-300 12

70 15 x 1 10 SEM-1-300 12

15 12 x 1 10 SEM-1-400 12

45 15 x 1 10 SEM-1-400 18

10 12 x 1 10 SEM-1-500 18

30 15 x 1 10 SEM-1-500 18

75 18 x 1 10 SEM-1-500 25

20 15 x 1 10 SEM-1-750 25

45 18 x 1 10 SEM-1-750 25

15 15 x 1 10 SEM-1-750 25

35 18 x 1 10 SEM-1-750 25

100 22 x 1 10 SEM-1-750 35

30 18 x 1 10 SEM-1-1000 35

70 22 x 1 10 SEM-1-1000 35

20 18 x 1 10 SEM-1-1000 35

60 22 x 1 10 SEM-1-1000 35

15 18 x 1 10 SEM-1-1000 35

45 22 x 1 10 SEM-1-1000 50

120 28 x 1.5 10 SEM-1-1000 50

25 22 x 1 10 SEM-1-1000 50

90 28 x 1.5 10 SEM-1-1000 50

3062815_0110

5. General preparations

Only handle and store the collector pile using the packing strips and pallets.

- Never move more than 16 collectors in a single pile and never store more

than 24 collectors in a single pile.

- Never move collectors with the glass facing down.

- To prevent damage, never carry collectors at the collector connectors or put

them down on the connectors.

- Never place the collector back onto uneven surfaces.

- Store collectors only in dry places that are free of dust.

- Cover the glass side of the collectors until the collectors are

commissioned.

- We recommend the use of transport handles (available as accessories).

Transport and storage

The following tasks should be carried out prior to the collectors being moved

onto the roof (exception: Flat roof installation).

NB: Fit compensators only to the short connectors.

Connect the collectors alternately across (up to 10 collectors).

Prior to joining the connections, check whether the collector seals are inside

eachtting.

Whenttingtheconnectionpieces,compensatorsandplugs,alwayscounterhold

the union nut on the collector.

Removethesensorwellfromthecontrolunitcartonandinsertintotheow

connector.

Respectively insert 2 M8x30 grub screws fully into the lower tray edge.

Preparations prior to installation

Compensator

Grub screws

M8x30

Flow connection piece

Return connection

piece (obligatory for

roof integration)

Collector

gaskets

Sensor well

The following materials and tools are required for an easy and safe collector

installation:

1 Hammer

1 Tape measure

1 Pencil / chalk

2 Screwdrivers / spanner SW 13

1 Wood drill bit approx. 5 mm (only roof integration)

1 Angle grinder with stone cutting disc

2 Open-ended spanners SW 30

1 Adjustable pliers

1 Jig saw (where the roof is already planked in)

Roof outlets for the solar lines (e.g. ventilation tile; cut to size with an angle

grinder)

Protective conduits (sensor lead, pipework)

Anti-falling protection(s)

Crosshead bit

Required tools

Installation

The installation and commissioning must only be carried out by authorised contractors.

This contractor will be responsible for the correct installation and commissioning.

The collector connections, even those of dry collectors, can become very hot during the

installation. Wear protective gloves as there is a risk of injury from burns.

3062815_0110

5. General preparations

Roof hook installation in preparation of the rooftop installation

Fitting roof hooks to battens

(pre-assembled)

Fitting roof hooks to rafters

(ret)

Initially tighten the roof hooks

only by hand, as shown in the

diagram.

Top roof hooks Bottom roof hooks

M8x20 coach bolt

When supporting the collectors on supports on pitched roofs, an installation

on battens is compulsory.

Washer nut

Washer nut M8

Short leg

on top

Long leg

on top

Arrangement example: 3 collectors, on end, alternate connection

Flow connection piece

Return connector

(compulsory for

roof integration)

Are all gaskets in place?

1 x plug opposite

the connection

pieces

Grub screws M8x30 at the

bottom of the collectors

Compensators

Sensor well

Whenttingtheconnectionpieces,compensatorsandplugs,always

counterhold the union nut on the collector.

Removethesensorwellfromthecontrolunitcartonandinsertintotheow

connector. Respectively insert 2 M8x30 grub screws fully into the lower tray

edge.

3062815_0110

6. Rooftop installation

(interlocking tile, plain tile)

Distribute all roof hooks supplied evenly over the width of the collector

array to spread the loads applied. For this, position the roof hooks as

near to the rafters as possible.

Positioning the collector

array for rooftop

installation

NB: No consideration has been given to the installation location or the pipe

connections.

Standard dimensions for

determining the width of the

collector array

Standard delivery, xing material subject to the number of:

Top roof hooks

withxingbrackets

Bottom roof hooks

withxingbrackets

Mounting rail

Mounting rail joint

set (if required)

Screws, nuts, grub

screws, woodscrews

in a bag

Compensating

rail set with

woodscrews for

mounting on rafters

Accessories

Number of collectors 1 2 3 4 5 6 7 8 9 10

Width [m] installation on end X 2.23 3.36 4.49 5.62 6.75 7.88 9.01 10.14 11.27

CFK-1 Without snow load extension set With snow load extension set

Max. area loading 2.4 kN/m² 4 kN/m²

Snow load zone 1 1190 m above sea level 1561 m above sea level

Snow load zone 1a 1039 m above sea level 1374 m above sea level

Snow load zone 2 768 m above sea level 1027 m above sea level

Snow load zone 2a 663 m above sea level 896 m above sea level

Snow load zone 3 587 m above sea level 799 m above sea level

Max. snow load when installing at-plate collectors on end with an inclination of 30° to 45°

This calculation takes a factor of 0.8 according to DIN 1055-5 into consideration (corresponding to a roof

inclination of 0° to 30°). We recommend roof integration where higher snow loads prevail.

3062815_0110

1. Assemble the bottom roof hooks as per the diagram and hook them onto

the batten.

Assemble the top roof hooks as per the diagram and hook it onto the batten.

Create the distance between both rails of 2.06 m for collector installation on end at

the top roof hooks using the slot in accordance with the diagram and secure that

position with M8x20 coach bolts.

3. AdjusttheheightofthexingbracketsandsecurewithcoachboltsM8x20,

ensuring that the pressure is evenly distributed over the roof tiles.

4. Thread the coach bolts M8x20 in sufcient numbers into the mounting

rails.

5. Fit the mounting rails with washer nuts onto the roof hooks.

6. Cover the roof hook area with tiles.

7. Rooftop installation (interlocking tile,

plain tile) roof hooks on battens

Collector on end 2.06

Roof hook installation on battens (example for 2 collectors)

Fitted bottom

roof hook

Collector array width

Mounting rail

M8x20

coach bolt

Max. 0.4 m

Rail protrusion

Max. 0.4 m

Rail protrusion

Min. 3

rows

Mounting

rail

Fitted top roof hook

M8x20

coach bolt

Mounting

rail

If required, trim or bend

the roof hook over

Option

Snow load

extension set

Fit hooks bottom/top

approx.

central

Mounting rail

Coach bolt

M8x20

Washer nut

3062815_0110

1. Fit the bottom roof hooks as per the diagram and secure them with 6x60

woodscrews to the rafters.

2. Fit the top roof hooks as per the diagram; adjust the distance between both

rails to 2.06 m when installing collectors on end using the slot according to

the diagram; secure with M8x20 coach bolts and with 6x60 woodscrews to

the rafter.

3. AdjusttheheightofthexingbracketsandsecurewithcoachboltsM8x20,

ensuring that the pressure is evenly distributed over the roof tiles.

4. Thread the coach bolts M8x20 in sufcient numbers into the mounting

rails.

5. Fit the mounting rails onto the roof hooks.

6. Cover the roof hook area with tiles.

8. Rooftop installation (interlocking tile,

plain tile) roof hooks on rafters

Fitting the roof hooks to the rafters

(example for 2 collectors)

Fitted top roof hook

Fitted bottom roof hook

Mounting rail

Collector array width

M8x20

coach bolt

M8x20

coach bolt

Min. 3

rows

Max. 0.4 m

Rail protrusion

Max. 0.4 m

Rail protrusion

Collector on end 2.06

If required, trim or bend

the roof hook over

Mounting rail

Coach bolt

M8x20

Washer nut

approx.

central

Option

Snow load

extension set

Fit hooks bottom/top

- Wherethetilevalleyisnotabovearafter,xcompensatingrails3supplied

above rafter 2. The roof hooks 1 are secured to the compensating rail in

the tile valley.

Secure compensating rail 3 with 6x60 woodscrews and washers on rafter 2.

- Insert the M8x20 coach bolt from below through the compensating rails.

- Position the roof hook and secure tightly with the hexagon nuts.

Fixing on rafters with

compensating rails

M8x20

coach bolt

3062815_0110

9. Rooftop installation (interlocking tile,

plain tile) collector installation

Note:Sometileshapes(e.g.attilesthatareproledatthetopandbottom)mustbecutoutintheareaoftheroof

hookstoenablethettedroofhookstoliecorrectlyandtopreventthetileabovefromliftingup.

Extension of the mounting rail

from 4 collectors

Ifmorethan3collectorsaretted,extendthemountingrailsinaccordance

with the diagram.

One of the three screws can also be used to secure the collector to a roof

hook. For this, the channel rail remains aligned in the centre; the screw can be

manoeuvred via the slot into the correct position above the hook.

Combination

screw

M8x20

Grub screw

Washer

nut M8

Mounting rail,

e.g. for 3 collectors

Mounting rail, e.g. for

2 additional collectors

Mounting rail

joining set

3 coach bolts M8 x 25 with washer nuts M8

Insertthecollectorwiththegrubscrewsrstintothelowermountingrailaccording

to the diagram and initially secure it by hand with the M8 washer nut.

2. Push the combination screws M8x20 through the top mounting rail and

initially tighten by hand into the collector.

3. Fit additional collectors likewise.

4. Securethettingsfortheowandreturn.Checkgaskets.

5. Tighten all screws and nuts to secure the collector.

- Are all gaskets in place?

- Maintain the necessary clearance

- Alignallthreadedttings

- Counterhold with a second

open-ended spanner

(max. torque 20 Nm.)

3062815_0110

10. Special features for rooftop installation

on slate roofs with slate hooks

1. Remove the slates where the hooks

needtobetted.

Collector array width

Crosshead screw 6x70 mm

M8x20 coach bolt

2. Secure the hooks with crosshead screws 6x70 mm.

M8x20 coach bolt

Collector on end 2.06

3. Covertheslatehookswithcommerciallyavailableleadashing.

4. Cover the roof.

Distribute all roof hooks supplied evenly over the width of the collector

array to spread the loads applied.

Option

Snow load

extension set

with hooks

Mounting rail

Coach bolt

M8x20

Washer nut

approx.

central

Max. 0.4 m

3062815_0110

11. Rooftop installation on corrugated / sheet

steel roofs with double ended screws

- Forroofscoveredincorrugatedroongsheets,drillthehole(Ø14)forthe

double ended screws into the roof skin respectively at the apex of the sheet

prole.

- Maintain the vertical clearance between the holes for the special headless

screws to safeguard the rail clearance.

- Ensurethesecurexingonthesub-structure/rafters.Whererequired,create

an auxiliary sub-structure on site.

- Drill the holes for securing the special headless screws in the rafters

(Ø 8.5) before commencing the installation. Insert a suitable rawl plug in

case of concrete or brickwork sub-structure.

- The special headless screws must be inserted to a depth of between 80

and 100 mm. Lubrication makes the insertion easier. The smooth part of the

shank acts as the sealing seat for the contact gasket. It must be located in

the area of the roof skin.

- For improved stability, the mounting plates for the special headless screws

are oriented upwards.

- Theroofskinissealedbylightandcarefultighteningoftheangednut.

Otherwise there is a risk that the corrugated Eternit roong sheets will

fracture.

General notes

Distribute all supplied special headless screws evenly over the width of

the collector array to spread the loads applied.

Double ended screw M12x300

Aluminium mounting plate 6 mm

EPDM gasket, UV-resistant

Tightenangenut

carefully

Risk of

breakage

Fitting the special

headless screw

Corrugated roof

Collector array width

Collector on end 2.06

Option

Snow load

extension set

Max. 0.4 m

Rail protrusion

Max. 0.4 m

Rail protrusion

Special headless

screw with mounting

plate

approx.

central

3062815_0110

12. Supported on pitched roofs

Optimum angle of inclination Toadjusttheangleofinclinationsubjecttothemethodofutilisation,theexible

supporting triangles can be matched to the relevant optimum angle.

Thesupportingtrianglesarettedwithholesat20°,30°and45°andcanbe

trimmed to size subject to the pitch of the roof.

Fixing information The roof hooks must be tted on rafters if the collectors are supported on

pitched roofs. First check the structural suitability of the sub-structure and

the permissible area loading for the roof (if required call on the services of a

structural engineer). Take the height of the building into consideration.

The collectors should be positioned at least 1 m away from the edge of the

roof to make the installation easier and due to the higher wind forces near the

edge of the roof.

Selection of hole size

2.06 m for on end installation

45°

30°

20°

Fit the diagonal leg to the respective hole in the vertical leg, subject to the required

angle.

Mark the vertical leg above the diagonal leg and trim to size (see diagram).

Wind

Wind energy Fw

Wind

Height of

building

Area exposed

to wind

Wind energy

0 – 8 m 2.30 m

2030 N

8 – 20 m 2.30 m

2800 N

> 20 m 2.30 m

Individual calculation acc. to EN 1991,

2-4 and DIN 1055-4 required

Information regarding the

optimum collector angle of

inclination

Solar DHW heating 30° ± 5°

Combined systems for solar DHW heating

and solar central heating backup

45° ± 5°

Solar heating backup 55° ± 5°

The following optimum collector angle of inclination is recommended, subject

to use:

3062815_0110

12. Supported on pitched roofs

Extension of the mounting rail

from 4 collectors

Ifmorethan3collectorsaretted,extendthemountingrailsinaccordance

with the diagram.

Mounting rail,

e.g. for 3 collectors

Mounting rail, e.g. for

2 additional collectors

Mounting rail

joining set

3 coach bolts M8 x 25 with washer nuts M8

Hole dimension "h"

Minimum clearance between

several rows of collectors

>1m

Roof inclination

α(°)

Support angle

δ (°)

Angle of inclination

to the horizontal (°)

Hole dimension "h"

(cm)

Clearance

dimension "d1" (cm)

Clearance

dimension "d" (cm)

15 30 45 117 (existing) 162 336

20 10 30 32 47 245

20 25 45 98 114 296

20 40 60 153 173 327

25 20 45 80 (existing) 77 266

30 15 45 62 49 243

30 30 60 117 (existing) 94 268

40 20 60 80 (existing) 45 234

45 15 60 62 28 222

Minimum clearance and angle for the supports when installing the collector on end (example: Würzburg)

3062815_0110

NB: No consideration has been given to the installation location or the pipe

connections.

Standard dimensions for

determining the width of the

collector array

12. Supported on pitched roofs

Installation of the support frame

Rafter centre

Installation on end:

Diagonal brace

Combination

screw

Washer nut

2.06 on end

installation

M8x20

coach bolt

Washer nut

M8x20

coach bolt

Washer nut

Diagonal brace When supporting collectors on pitched roofs, t

one diagonal brace (snow load rail) per row of

collectors.

Vertical leg

Washer nut M8

M8x20 coach bolt

Diagonal brace

(snow load rail)

Number of collectors 1 2 3 4 5 6 7 8 9 10

Width [m] installation on end X 2.23 3.36 4.49 5.62 6.75 7.88 9.01 10.14 11.27

1. Fit the roof hooks on rafters; for this, observe the vertical and horizontal

hook clearances.

2. Fit the supporting triangles onto the roof hooks.

3. Secure the mounting rails at the bottom / top of the support frame using

M8x50 hexagon nuts.

4. Insertthecollectorwiththegrubscrewsrstintothelowermountingrail

according to the diagram and initially secure it by hand with the M8 nut and

washer.

5. Push the M8x20 hexagon screws with washers through the top mounting

rail and initially tighten by hand into the collector.

6. Fit additional collectors likewise.

7. Securethettingsfortheowandreturn.Checkgaskets.

8. Install 1x snow load rail per collector array as diagonal brace.

9. Tighten all screws and nuts to secure the collector.

- Are all gaskets in place?

- Maintain the necessary

clearance

- Alignallthreadedttings

- Counterhold with a second

open-ended spanner.

(max. torque 20 Nm.)

Max. 0.4 m

Max. 1.2 m

Max. 0.4 m

Further collectors approx. 1.13 m

Max. 1 m

3062815_0110

13. Roof integration, interlocking tile

Forsafetyreasons,the[German]roongcontractor'sassociationspeciesa

covered substrate with bitumen sheeting or other suitable material below the

collector area to prevent the ingress of moisture in case of leaks. This must

terminate in the roof gutter.

Standard dimensions for

determining the position of

the collector array

Collector array width

Min. 3 rows

Min. 2.5 m

X (0.5-12 cm)

Width with cover frame

X (0.5-12 cm)

Collector array width

Width with cover frame

Standard delivery

Installation parts

Top cover panels

Right hand

cover panel

Left hand

cover panel

Top mounting rail

Bottom mounting rail

(withreturnforashingtape)

Flashing tape base, R.h.

Flashing tape

base L.h.

Flashing tape

Triangular

sealing tape

Edge

protector

Timber spacer of 15 to 30 mm

height to match to the battens

Screws, nuts, grub screws,

woodscrews in a bag

Intermediate

panels

Connecting rail

Number of collectors 2 3 4 5 6 *) 7 8 9 10 *)

Width of the collector array [m] 2.36 3.49 4.62 5.75 6.88 8.01 9.14 10.27 11.40

Width with cover frame [m] 2.74 3.87 5.00 6.03 7.26 8.39 9.52 10.65 11.78

*)Tiles to be removed per row of tiles:

Cover width 30 cm 8 14 18 22 25 29 33 37 39

Dim. "X" [cm] 0.5 4 7.5 11 14.5/ 7 3 6.5 10 6

Cover width 20 cm 12 18 24 29 35 41 46 52 58

Dim. "X" [cm] 0.5 4 7.5 1 4.5 8 1.5 5 8.5

*) After "centring" the mounting rail we recommend to shift the rail 7 cm to the left or right. This ensures that on one side half a tile and on the

opposite side a whole tile can be used.

3062815_0110

13. Roof integration, interlocking tile

1. Centrethemountingrailafterttingtheextension,sothatagapof0.5-12cm(dim."X")iscreatedbetweenthe

collectorarraywidthandthenalcover.Wheredim."X"cannotbeachieved,usehalftilesorcuttilestosize.

Dim. "X" must be achieved to ensure a cover that is safe from the ingress of rain.

2. Drill a Ø 5 mm hole and secure the mounting rail with the hexagon head cap wood screw 8x80 and the timber

spacers (batten thickness less 9 mm) to the rafters.

3. Afxtheashingtapeinaccordancewiththediagram.Forthis,removetheprotectivefoilonlyintheareaactuallyto

beusedforthemountingrail.Theashingtapemustprotrudeapprox.35cmontheleftandrightovertheashing

tapebases.Secureseveralashingtapestoeachotherwithanoverlapofatleast5cm.(Donotasyetafxthe

ashingtapetothetilesasthecollectorsmuststillbesecuredtothemountingrail.)

Installation and extension

of the lower mounting rail

(withreturnforashingtape)

Flashing tape

base, L.h.

Flashing tape base, R.h.

Connecting rail

Mounting rail for

2 collectors (2.26 m)

Mounting rail for

1 add. collector (1.13 m)

2 x coach bolt

M8 x 16

4 x coach bolt

M8 x 16

8 x 80

Timber spacer

(batten thickness less 9 mm)

Overlap > 5 cm

Mounting

rail

Flashing tape

Construction

Timber spacers in the thickness of the battens

Triangular sealing tape

Top panel

Collector

Timber spacers in the thickness of

the battens less 9 mm

Mounting rail

Flashing tape

Waterproof subroof

Recommendation:

Stuff the space below the

top panel at the tile contact

point to prevent the tile from

pushing through.

3062815_0110

13. Roof integration, interlocking tile

1. Insertthecollectorwiththegrubscrewsrstintothelowermountingrail

according to the diagram and initially secure by hand with the M8 nut with

washer.

2. Insert additional collectors likewise into the lower mounting rail.

3. Position the timber spacers (batten height) onto the rafters at the top of the

collectors. Position the mounting rail on top of the timber spacers and push

against the top of the collector. Initially secure the mounting rail with the

combination screws M8x20 and washers by hand to the collectors.

4. Drill a Ø 5 mm hole through the mounting rail and the wood spacers into the

rafter and secure to the rafter with hexagon head cap wood screw 8x80.

5. Securethettingsfortheowandreturn.Checkgaskets.

6. Check for leaks in accordance with the section "Leak testing"

Collector installation

Timber spacer

(batten height)

8 x 80

Flashing tape

Washer

nut M8

Timber spacer

(batten height less 9 mm)

Combination screw

M8x20

Bottom mounting rail

Top mounting rail

- Are all gaskets in place?

- Maintain the necessary clearance

- Alignallthreadedttings

- Counterhold with a second open-ended

spanner (max. torque 20 Nm.)

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Wolf CFK-1 Installation, Operating And Maintenance Instructions

Wolf CFK-1 Installation, Operating And Maintenance Instructions

Wolf CFK-1 Installation, Operating And Maintenance Instructions

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