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Dear customer, The FRÖLING S4 Turbo is a state-of-the-art design that conforms to all currently applicable standards and testing guidelines. Please read and follow the assembly instructions. They contain safety instructions and comprehensive information relating to transporting, setting up and assembling the boiler. The continuous development of our products means that there may be minor differences between the illustrations and other content of the document. If you discover any errors, please let us know. Subject to technical change.
Delivery Certificate Keeping a record that the delivery was received correctly and collecting customer-specific data relating to the system allows us to respond quickly should problems arise. We would therefore ask you to confirm that you have received the product in good condition. Please send Fröling a copy of the delivery certificate, filled in and signed by the customer.
Guarantee conditions Our sale and delivery conditions shall always apply. These are made available to customers in advance, and are deemed to have been accepted at the time the contract is concluded. The warranty conditions can also be found in the enclosed guarantee certificate.
Address of manufacturer
FRÖLING Heizkessel- und Behälterbau GesmbH Industriestraße 12 A-4710 Grieskirchen AUSTRIA TEL +43 (0)7248 606 0 FAX +43 (0)7248 606 600 E-MAIL [email protected] INTERNET www.froeling.com
Contents
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1 General information 6
1.1 Notes on standards 6 1.2 Design Information 7
1.2.1 Approval and obligation to report ...................................................................... 7 1.2.2 Requirements for central heating water.............................................................. 7 1.2.3 Ventilation of boiler room................................................................................. 8 1.2.4 Installing the heating system / Standards........................................................... 8
Return feed lift .............................................................................................. 8 Combination with storage tank......................................................................... 9
1.2.5 Chimney connection/chimney system .............................................................. 10 Draught limiter ............................................................................................ 10 Boiler data relating to design of the flue gas system.......................................... 10
2 Technology 11
2.1 Components and connections 11 2.2 Dimensions 12 2.3 Performance data 13
2.3.1 S4 Turbo 15/22/28 ....................................................................................... 13 Test report data........................................................................................... 13
2.3.2 S4 Turbo 34/40 ............................................................................................ 14 Test report data........................................................................................... 14
2.3.3 S4 Turbo 50/60 ............................................................................................ 15 Test report data........................................................................................... 15
3 Installation 16
3.1 Transport 16 3.1.1 Positioning ................................................................................................... 16 3.1.2 Remove boiler from pallet .............................................................................. 16 3.1.3 Temporary storage........................................................................................ 16
3.2 Setting up in the boiler room 17 3.2.1 Moving the boiler in the boiler room................................................................. 17 3.2.2 Minimum distances in the boiler room.............................................................. 17
3.4 Before installation 19 3.4.1 Fitting doors on the left ................................................................................. 19 3.4.2 Fitting the door handles ................................................................................. 21 3.4.3 Positioning doors .......................................................................................... 21
3.5 Installation of S4 Turbo 15/22/28/34/40 22 3.5.1 Fitting the induced draught fan ....................................................................... 22 3.5.2 Installing the flue gas pipe nozzle.................................................................... 22 3.5.3 Installing the WOS system ............................................................................. 22 3.5.4 Installing the air flaps.................................................................................... 24
Air flaps for actuators right (delivery configuration)........................................... 24 Air flaps for actuators left .............................................................................. 25
3.5.5 Installing the insulation.................................................................................. 26
C 3.5.6 Installing the actuators .................................................................................. 29 3.5.7 Installing the Lambda probe ........................................................................... 30 3.5.8 Installing the flue gas sensor .......................................................................... 31 3.5.9 Installing the control unit ............................................................................... 31 3.5.10 Installing the WOS lever................................................................................. 32 3.5.11 Install the insulating door............................................................................... 34 3.5.12 Installing the insulating cover ......................................................................... 35 3.5.13 Installing the floor insulation........................................................................... 35
3.6 Installing the S4 Turbo 50/60 36 3.6.1 Installing the WOS system.............................................................................. 36 3.6.2 Installing the air flaps .................................................................................... 37
Air flaps for actuators right (delivery configuration) ........................................... 37 Air flaps for actuators left .............................................................................. 38
3.6.3 Installing the insulation.................................................................................. 39 3.6.4 Installing the actuators .................................................................................. 42 3.6.5 Installing the flue gas sensor .......................................................................... 43 3.6.6 Installing the Lambda probe ........................................................................... 43 3.6.7 Installing the induced draught fan ................................................................... 44 3.6.8 Installing the control unit ............................................................................... 45 3.6.9 Installing the WOS lever................................................................................. 46 3.6.10 Install the insulating door............................................................................... 47 3.6.11 Installing the insulating cover ......................................................................... 48 3.6.12 Installing the floor insulation........................................................................... 48
Assembly and installation by untrained personnel. Risk of personal injury and damage to property.
The instructions and information provided in the manual must be observed. Assembly and installation must only be carried out by qualified personnel (heating installers or licensed electricians).
1.1 Notes on standards
The boiler must be installed and commissioned in compliance with local fire and building regulations and the following standards:
ÖNORM/DIN EN 303-5 Heating boilers for solid fuels, hand and automatically stocked, nominal heat output of up to 300 kW - Terminology, requirements, testing and marking
ÖNORM M 7510 Guidelines for checking central heating systems
ÖNORM / DIN EN 12828 Heating systems in buildings - design of water-based heating systems
ÖNORM B 8130 Safety devices, open water-heating systems
ÖNORM B 8131 Closed water-heating systems, safety requirements
DIN 4751 Parts 1-4 Heating system safety equipment
ÖNORM / DIN EN 13384-1
Chimneys serving one appliance
ÖNORM M 7515 / DIN 4705-1
Calculating chimney dimensions for combustion systems
ÖNORM H 5170 Requirements related to fire prevention, fire protection and building construction
VDI 2035 Prevention of damage in water heating installations - Scale formation in domestic hot water supply installations and water heating installations (Germany only)
ÖNORM H 5195-1 Prevention of damage by corrosion and scale formation in closed warm-water-heating systems at operating temperatures up to 100 °C (Austria only).
VDI 2035 Prevention of damage in water heating installations - Scale formation in domestic hot water supply installations and water heating installations (Germany only)
SWKI 97-1 Lime scale and corrosion protection in heating systems (Switzerland only)
It is forbidden to carry out modifications to the boiler or to change or deactivate safety equipment. Always comply with all fire, building, and electrical regulations when installing or operating the boiler system, in addition to following the operating instructions and mandatory regulations that apply in the country in which the boiler is operated.
1.2.1 Approval and obligation to report
NOTICE
Each heating system must be officially authorised. The appropriate supervisory authority (inspection agency) must always be informed when installing or modifying a heating system, and authorisation obtained from the building authorities. Austria: Inform the civic/municipal building authorities. Germany: Register with an approved chimney sweep/the building authorities.
1.2.2 Requirements for central heating water
The requirements pertaining to the water used to fill the boiler are based on the following standards and guidelines:
Applicable standards and guidelines: Austria: ÖNORM H 5195-1 Germany: VDI 2035 Switzerland: SWKI 97-1
There are no other special requirements for central heating water.
Note on filling with make-up water: bleed the filling hose before connecting to prevent air from getting into the system.
§
General Standards, Design, Assembly
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1.2.3 Ventilation of boiler room
The openings for the supply air and the exhaust air should be arranged as close to opposite each other as possible to achieve a good thermal draught effect.
The supply air must be drawn in directly from outside. Exhaust air must be discharged directly outside.
Unless otherwise stipulated by the building regulations applicable to the room where the boiler is to be installed, the following standards shall apply:
Applicable standard: - ÖNORM H 5170
1.2.4 Installing the heating system / Standards
The following standards govern the installation of heating systems:
Applicable standards: ÖNORM / DIN EN 12828 Heating Systems in Buildings The following prior standards still apply: Austria: - Closed systems as per ÖNORM B 8131 - Open systems as per ÖNORM B 8130 Germany: - Closed systems as per DIN 4751 Part 2 - Open systems as per DIN 4751 Part 1
Return feed lift If the hot water return feed is below the minimum return feed temperature, some of the hot water outfeed will be mixed in.
CAUTION
Risk of dropping below dew point/condensation formation if operated without return feed lift. Condensation water forms an aggressive condensate when combined with combustion residue, leading to damage to the boiler.
Regulations stipulate the use of a return feed lift.
The minimum return feed temperature is 55 °C. We recommend fitting some kind of control device (e.g. thermometer).
In accordance with the relevant Austrian laws governing energy technology, which are based on Art. 15a B-VG “Agreement on protective measures for small furnaces” dated November 1994, no buffer storage tank is required on manually fed biomass boilers that have been positively tested at both rated load and partial load (below 50% of rated load) to ensure they adhere to the emissions limits specified in that agreement.
Germany has specified its own emissions limits in the “First Ordinance on Implementation of the Federal Emissions Control Act (1st BImSchV)”. Provided that commissioning is carried out by our customer services or an authorised partner company, it can be assumed that these requirements will also be complied with under partial load conditions in accordance with § 6 (3) of the 1st BImSchV. This means that the complete range of firewood boilers can be used in Germany without requiring a mandatory buffer storage tank.
Combining the system with a buffer storage tank does however offer significant advantages when using a firewood boiler, such as better utilisation of the fuel, more user-friendly operation in terms of reloading intervals (which means the greatest possible independence from instantaneous heating requirements), and less soiling of the boiler and flue gas system. In addition to the above, as the manufacturer of the boiler we have to advise on how the heat generated can be dissipated. This is because compliance with the emissions limits and minimum level of efficiency at a minimum heat output of 30% of the rated heat output, as specified in Section 4.2.5 or EN 303-5, has not been demonstrated for all variants of the system.
The opportunities for heat dissipation are particularly good if the central heating system has sufficient capacity for heat uptake, for example through underfloor heating circuits with a suitable water volume or hot water tanks with appropriate reserve capacity. It should also be noted that the integral thermal discharge safety device ensures that the boiler will operate safely even if it is overfilled or has too little load reduction. If, however, the amount of heat that can be temporarily dissipated within the building being heated is limited, then additional heat dissipation can be provided by a buffer storage tank.
The recommend storage volume for each boiler is given in the technical specifications. The specified value applies under the following conditions: the rated heat output of the boiler corresponds to the heating requirements of the building and a maximum of 50% of the rated heat output can be dissipated to the building being heated under partial load conditions. Certain subsidy guidelines also prescribe compulsory requirements for the installation of buffer storage tanks: Some guidelines relate to minimum storage volume in accordance with EN 303-5, as given in the technical specifications. ... In Austria: some subsidy guidelines of Austrian federal states (e.g. those of the Vorarlberg state government) ... In Switzerland: The “Quality Seal for Wood Burning Systems” scheme from Holzenergie Schweiz
General Standards, Design, Assembly
Page 10 M0970208 I
1 Other guidelines are based on tank size, e.g. ... In Austria: Specific subsidy guidelines for Austrian states (e.g.
Styrian state government guidelines: buffer storage tanks of at least 800 L)
... In Germany: “BAFA Förderung” guidelines on measures to promote a better use of renewable energies of the Federal Office of Economics and Export Control (BAFA): buffer storage tanks of at least 55 L/kW
Up to date information relating to specific subsidy guidelines for various regions can be found on our website at www.froeling.com.
1.2.5 Chimney connection/chimney system
EN 303-5 specifies that the entire flue gas system must be designed to prevent, wherever possible, damage caused by seepage, insufficient feed pressure and condensation. It should be noted here that flue gas temperatures of less than 160 K above room temperature can occur within the permitted operating range of the boiler. The flue gas temperatures (for clean systems) and additional flue gas values can be found in the technical specification sheets.
See “Boiler data relating to design of the flue gas system” Connect to the chimney via the shortest path, preferably with a vertical gradient of less than 30–45°. Insulate the connecting piece. The entire flue gas system (chimney and connection) must be calculated as per ÖNORM/DIN EN 13384-1 or prior standards ÖNORM M 7515/DIN 4705-1. Local regulations and other statutory regulations also apply.
The chimney must be authorised by a smoke trap sweeper or chimney sweep.
Draught limiter We recommend that a draught limiter is fitted (1) Install the draught limiter directly under the mouth of the flue line, as the pressure is lower at this location.
Boiler data relating to design of the flue gas system
Fuel loading door dimensions (width / height) mm 380 / 360 380 / 360 380/360
Fuel loading chamber capacity 145 145 145
Water capacity L
115 115 115
Water side resistance (with 10/20 K temperature difference) mbar 6.5 / 2.0 4.0 / 2.0 4.2 / 2.5
Minimum return feed temperature 55
Permitted operating temperature °C
95
Permitted operating pressure bar 3
Permitted fuel Firewood
Combustion time1) Beech Spruce h 9.0 - 13.0
6.3 - 9.2 5.6 - 8.1 3.9 - 5.7
4.4 - 6.4 3.1 - 4.5
Recommended buffer storage tank capacity L 2000 2000 1400
1) The values specified for combustion time are guideline values for firewood at rated load and will vary depending on water content (15-25%) and fill level (80-100%).
1) TÜV Austria, Environment and Chemistry Division, Thalheim bei Wels Test Centre
2) In accordance with ÖNORM / DIN EN 303-5, section 5.1.3 Type Test: for a boiler from a range with a consistent structure it is sufficient, if the ratio of rated heat output from the largest to the smallest boiler ≤ 2 : 1, to carry out the tests with the smallest and the largest boilers. The boiler manufacturer must ensure that all boilers, including those that have not been tested in a range, whose values have been determined depending on rated heat output by interpolation, fulfil the requirements of the norm.
3) Values for the type S4 Turbo 28 are interpolated between the test protocol 07-UWC/Wels-EX-094/2 and 07-UWC/Wels-EX-094/3.
4) Values for the type S4 Turbo 22 are interpolated between the test protocol 07-UWC/Wels-EX-094/1 and 07-UWC/Wels-EX-094/2.
Technology Technical specifications
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2 2.3.2 S4 Turbo 34/40
S4 Turbo
Description Unit 34 40
Rated heat output 34 40
Fuel-heating efficiency at rated heat output kW
37.2 43.8
Boiler class 3
Electrical connection 230 V / 50 Hz / fused 16 A
Electrical output W 110 110
Boiler weight kg 740 740
Fuel loading door dimensions (width / height) mm 380 / 360 380 / 360
Fuel loading chamber capacity 190 190
Water capacity L
175 175
Water side resistance (with 10/20 K temperature difference) mbar 5.1 / 1.7 6.0 / 1.9
Minimum return feed temperature 55
Permitted operating temperature °C
95
Permitted operating pressure bar 3
Permitted fuel Firewood
Combustion time1) Beech Spruce kg/h 4.7 - 6.8
3.3 - 4.8 3.9 - 5.7 2.8 - 4.0
Recommended buffer storage tank capacity L 1400 1400
1) The values specified for combustion time are guideline values for firewood at rated load and will vary depending on water content (15-25%) and fill level (80-100%).
1) TÜV Austria, Environment and Chemistry Division, Thalheim bei Wels Test Centre
2) In accordance with ÖNORM / DIN EN 303-5, section 5.1.3 Type Test: for a boiler from a range with a consistent structure it is sufficient, if the ratio of rated heat output from the largest to the smallest boiler ≤ 2 : 1, to carry out the tests with the smallest and the largest boilers. The boiler manufacturer must ensure that all boilers, including those that have not been tested in a range, whose values have been determined depending on rated heat output by interpolation, fulfil the requirements of the norm.
3) Values for the type S4 Turbo 34 are interpolated between the test protocol 07-UWC/Wels-EX-094/2 and 07-UWC/Wels-EX-094/3.
Technology Connections, dimensions and performance data
Fuel loading door dimensions (width / height) mm 380 / 360 380 / 360
Fuel loading chamber capacity 200 200
Water capacity L
170 170
Water side resistance (with 10/20 K temperature difference) mbar 7.0 / 2.0 8.0 / 2.5
Minimum return feed temperature 55
Permitted operating temperature °C
95
Permitted operating pressure bar 3
Permitted fuel Firewood
Combustion time1) Beech Spruce
kg/h 3.4 - 4.9 2.4 - 3.5
2.8 - 4.1 2.0 - 2.9
Recommended buffer storage tank capacity L 1660 1660
1) The values specified for combustion time are guideline values for firewood at rated load and will vary depending on water content (15-25%) and fill level (80-100%).
1) TÜV Austria, Environment and Chemistry Division, Thalheim bei Wels Test Centre
2) In accordance with ÖNORM / DIN EN 303-5, section 5.1.3 Type Test: for a boiler from a range with a consistent structure it is sufficient, if the ratio of rated heat output from the largest to the smallest boiler ≤ 2 : 1, to carry out the tests with the smallest and the largest boilers. The boiler manufacturer must ensure that all boilers, including those that have not been tested in a range, whose values have been determined depending on rated heat output by interpolation, fulfil the requirements of the norm.
3) Values for the type S4 Turbo 50 are interpolated between the test protocol 07-UWC/Wels-EX-094/3 and 08-UW/Wels-EX-074.
Installation Transport and setup
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3 Installation
3.1 Transport
The boiler comes packed on a pallet. Move the boiler without jarring or jolting Follow the instructions on the packaging when moving the boiler
3.1.1 Positioning
Use a fork-lift or similar lifting device to move the pallet and position the boiler or
Attach a cable winch or similar lifting device to the eyelet on the boiler and position the boiler
3.1.2 Remove boiler from pallet
At the front of the boiler: Remove securing devices used during transportation on the left and
right side of the base. At the back of the boiler:
Remove securing devices used during transportation on the left and right side of the base.
3.1.3 Temporary storage
If the system is to be installed at a later date: Store the boiler, insulation and control unit in a safe, dust-free, and
dry location Moisture and frost reduce the effectiveness of insulation and can destroy electronic components.
Position a fork-lift or similar lifting device at the base frame of the
boiler and move it to the designated position To prevent damage:
Move the boiler without jarring or jolting Risk of damage to firebrick-lined combustion chamber.
Move the packing units carefully Risk of scratching the insulation
Position the boiler at the designated location
The boiler must be positioned so that it rises slightly towards the outfeed
Observe the minimum distances from other objects in the boiler room
3.2.2 Minimum distances in the boiler room
Set up the boiler according to the applicable standards and regulations. The following minimum distances must be observed in all cases:
A Distance between insulated door and wall 800 mm
B Distance between side of boiler and wall 300 mm
C Distance between rear of boiler and wall S4 Turbo 15-40 S4 Turbo 50-60
500 mm 800 mm
Installation Materials supplied
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3.3 Materials supplied
A Boiler
B Insulation
C Flue gas pipe nozzle (S4 Turbo 15-40)
D Induced draught unit housing (S4 Turbo 50-60)
E Induced draught fan
F Cardboard box containing small parts
G Rods for primary and secondary air
H Ash shovel
I Cleaning kit
J Cleaning brush, small
K Cleaning brush, large
L Control unit of the Lambdatronic S3200
M Ash drawer
The following are also included in the materials supplied but not pictured: Lambdatronic control unit, installation instructions, operating instructions, guarantee certificate, identification plate
3.3.1 Tools required
The following tools are required for the installation of the S4 Turbo: - Hexagonal spanners or hexagonal sockets with widths across flats: 8, 10, 13, 17, 22 mm - Flat head and cross-head screw drivers - Hammer, side cutters and half-round file - Power drill or cordless electric screwdriver with Torx 30 bit insert
The boiler doors are attached on the right hand side when delivered. Carry out the following assembly steps if the doors need to be attached on the left:
3.4.1 Fitting doors on the left
Detach the doors Unscrew the hinge and back
plate, swap them over and reattach.
The top and bottom locking cams should be installed in mirrored positions, with the groove of the adjustable area facing the middle of the door hinge in each case.
Position the door hinge on the abutting side of the door Push the cup square bolts through and place the locking cams on
as shown Fix the door hinge finger tight with a hexagonal nut and a spacer
washer Rotate the pre-heating chamber door and the combustion chamber
door and attach them on the left hand side.
Installation Before installation
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Additional steps for the fuel loading chamber door:
Remove the radiation plate together with the seal
Detach the insulating plate from the ceramic fibre seal
Carefully lift out the insulating plate
Turn the insulating plate by 180° and position it so that it lines up with the holes provided
Re-install the radiation plate Fix the seal in place using
Using pliers, turn the pneumatic rods anti-clockwise until the left-hand limit stop is reached
All 4 air flaps must be closed.
Press the safety-release button (1) and turn the actuator anti-clockwise to the “0” position
Turn the selector switch (2) to position “0” using a screw-driver
Install the 2-part cover plate on the same side as the actuators and install the 1-part cover plate opposite with self-tapping screws
Put both actuators onto the pneumatic rods
Insert the torque support at the actuators
Align the actuators horizontally and
fix the torque support to the cover plate with 3 self-tapping screws
Label the cables for the actuators using the stickers provided
Top actuator = primary air Bottom actuator = secondary air
1
2
Installation S4 Turbo 15-40
Page 30 M0970208 I
3 Pull the cable upwards behind the
insulating back panel Screw the insulating back panel into
final position with the insulating side panels
Push on the cable covers and fix in
position using self-tapping screws
Thread the actuator cables into the cable duct on the cable tray as shown and pull forwards
Fit the induced draught cover plates to the insulating back plate
3.5.7 Installing the Lambda probe
Unscrew the pre-installed bushing from the lambda probe Screw the bushing into the flue gas nozzle and tighten gently Screw the lambda probe into the bushing and tighten gently
Screw-in the brass bushing for the flue gas sensor Push in the flue gas sensor until about 20 mm of the sensor
remains protruding from the bushing and fix lightly using the fixing screw
3.5.9 Installing the control unit
Put the control board on the cable tray Ensure that the pins are inserted correctly. Secure the control board to the cable tray with self-tapping screws
Place a contact washer (1) on each screw.
Lay the cable of the lambda probe and the flue gas sensor through
the cable duct to the control unit. Pull the cables for the boiler sensor and the safety temperature
limiter (STL) back and insert them into the right immersion sleeve with a clamp spring (1)
1
1
Installation S4 Turbo 15-40
Page 32 M0970208 I
3 For the S4 Turbo 34/40 also:
Fit additional cover plate to the back of the control board
When carrying this out, ensure that it fits between the guide plate and the insulating side panel.
3.5.10 Installing the WOS lever
On the same side as the brass bushing:
Remove the pre-punched perforation from the insulating side panel using side cutters
File rough edges using a half-
round file and remove burrs
Put the cover plate on the cleaning lever
Raise the turbulators in the flue gas collection chamber and push in the cleaning lever from outside
Pull the cable upwards behind the insulating back panel
Screw the insulating back panel into final position with the insulating side panels
Push on the cable covers and fix in
position using self-tapping screws
Thread the actuator cables into the cable duct on the cable tray as shown and pull forwards
3.6.5 Installing the flue gas sensor
Screw-in the brass bushing for the flue gas sensor Push in the flue gas sensor until about 20 mm of the sensor
remains protruding from the bushing and fix lightly using the fixing screw
3.6.6 Installing the Lambda probe
Unscrew the pre-installed bushing from the lambda probe Screw the bushing into the flue gas nozzle and tighten gently Screw the lambda probe into the bushing and tighten gently
Installation S4 Turbo 50-60
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3 3.6.7 Installing the induced draught fan
Fit the induced draught cover plates to the insulating back plate
Put the ceramic fibre seal onto the induced fan housing
Install the induced draught fan housing at the flange of the flue gas nozzle as shown
Mount and secure the induced draught fan
The straight edge of the flange must be at the top
Put the control board on the cable tray Ensure that the pins are inserted correctly. Secure the control board to the cable tray with self-tapping screws
Place a contact washer (1) on each screw.
Lay the cable of the lambda probe and the flue gas sensor through
the cable duct to the control unit. Pull the cables for the boiler sensor and the safety temperature
limiter (STL) back and insert them into the right immersion sleeve with a clamp spring (1)
Fit additional cover plate to the back of the control board
When carrying this out, ensure that it fits between the guide plate and the insulating side panel.
1
1
Installation S4 Turbo 50-60
Page 46 M0970208 I
3 3.6.9 Installing the WOS lever
On the same side as the brass bushing:
Remove the front pre-punched perforation from the insulating side panel using side cutters
File rough edges using a half-round file and remove burrs
Remove the top cleaning cover Feed the WOS lever through the
cover plate
Raise the turbulators in the flue gas collection chamber and push in the cleaning lever from outside
Secure the WOS lever with 2 bolts Ø6 x 30 (1)
Connect both WOS rods together using the connecting lever
Secure the bolts with split pins
Secure the shutter mask to the insulating side panel
Working on electrical components Risk of serious injuries from electric shocks
Work on electrical components should only be carried out by authorised
technicians
Wire up the components according to the electrical connection
diagram Flexible sheathed cable must be used for the wiring; this must be of the correct size to comply with applicable regional standards and guidelines.
The supply line (mains connection) must be fitted with a maximum 16 A fuse by the customer.
See boiler control unit operating instructions for circuit diagrams
3.8 Connecting the thermal discharge safety device
NOTICE
The thermal discharge safety device must be connected in accordance with ÖNORM/DIN EN 303-5 as shown in the following diagram.
The discharge safety device must be connected to a pressurised mains water supply in such a way that it cannot be shut off.
1 Thermal discharge safety device sensor
2 Thermal discharge safety device (opens at approx. 95 °C)
3 Cleaning valve (T-piece)
4 Dirt trap
5 Pressure reducing valve*
*) Required when the cold water pressure is greater than 6 bar. It must be not be possible to shut off the connection manually. Minimum cold water pressure is 2 bar.
1
2
3
4
5
Initial startup / Decommissioning
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4 Startup
4.1 Initial startup/ configuring the boiler
The boiler must be adjusted to the requirements of the heating system during initial startup
NOTICE
Optimum performance and efficient operation with low emissions can only be guaranteed if the system is set up by a qualified technician and the specified factory settings are observed.
Take the following precautions:
We recommend that the system is commissioned by Fröling customer services or an authorised installer.
Before heating up the boiler for the first time:
Adjust the control unit to the system type The keypad assignment and the steps necessary to modify the control parameters are detailed in the accompanying operating instructions for the boiler control unit.
5 Decommissioning
5.1 Mothballing
The following tasks should be carried out if boiler is to remain out of service for several weeks (e.g. during the summer):
Clean the boiler thoroughly and close the doors fully If the boiler is to remain out of service during the winter:
Have the system completely drained by a qualified technician Protection against frost
5.2 Disassembly
To disassemble the boiler, perform the assembly process in reverse order.
5.3 Disposal
Dispose of all waste in an environmentally-friendly manner and in accordance with waste disposal regulations.
Separate and clean recyclable materials and send them to a recycling centre.
Operating principle and self-checking of safety devices discussed
All technical documentation handed over (documentation, certificates of conformity, ...)
Test heating performed
Commissioning report handed over
Telephone number for manufacturer’s service department indicated
Rating plate attached
Following items checked:
No defects found
Notice: All national and regional regulations relating to initial testing and subsequent testing of the system must be observed. Please be advised that, in Austria, commercial systems with a rated heat output ≥ 50 kW must be regularly tested at yearly intervals in accordance with the Heating Plant Regulations (FeuerungsanlagenVO).
Date Customer Installer
Finally, we ask that you have the customer sign a copy of this confirmation and send it to