Windhager LOGWIN PREMIUM TOUCH User manual

EN
OPERATING MANUAL
LOGWIN PREMIUM
TOUCH
WOOD GASIFICATION BOILER
05/2017 095176/02–v1.2.x

2
Table of contents
Table of contents
1. Important information for system operators.................................................................. 4
1.1 General information ......................................................................................................................4
1.1.1 Manufacturer's obligations ........................................................................................................................................4
1.1.2 Installer's obligations ................................................................................................................................................4
1.1.3 Operator's obligations ...............................................................................................................................................4
1.1.4 Spare parts .................................................................................................................................................................5
1.1.5 Software .....................................................................................................................................................................5
1.2 Safety precautions ......................................................................................................................... 5
1.2.1 Caution symbols .........................................................................................................................................................5
1.2.2 General safety information.........................................................................................................................................5
1.3 Sources of danger .......................................................................................................................... 6
1.3.1 Power failure (or if the blower is not running)...........................................................................................................6
1.3.2 Combustion air ...........................................................................................................................................................6
1.4 Fuel .............................................................................................................................................. 6
1.5 Start-up and maintenance............................................................................................................... 7
1.6 Functional test............................................................................................................................... 7
1.7 Combination with automatic boiler (e.g. pellet or oil-fired boiler) ..................................................... 7
2. Operation ................................................................................................................... 8
2.1 Functional elements and operating controls..................................................................................... 8
2.1.1 Control panel..............................................................................................................................................................9
2.2 Check before first heating .............................................................................................................. 9
2.3 Heating mode – preparing, starting or replenishing fuel ................................................................... 9
2.3.1 Preparing heating mode ...........................................................................................................................................10
2.3.2 Starting by hand (no automatic ignition)................................................................................................................. 11
2.3.3 Starting with automatic ignition ............................................................................................................................. 12
2.3.4 Replenishing fuel – continuing heating mode..........................................................................................................14
2.4 End of burning............................................................................................................................. 14
3. Care, cleaning and maintenance .................................................................................. 15
3.1 For each fill ..................................................................................................................................15
3.1.1 Lever for cleaning heating surfaces.......................................................................................................................... 15
3.1.2 Ignition openings on lighting door and vertical grate.............................................................................................. 15
3.2 Weekly........................................................................................................................................ 16
3.2.1 Removing the ash .....................................................................................................................................................16
3.3 Annually...................................................................................................................................... 16
3.3.1 Carburisation gas duct .............................................................................................................................................16
3.3.2 Blower box, blower wheel ........................................................................................................................................ 17
3.3.3 Exhaust pipe .............................................................................................................................................................18
3.3.4 Upper coasting surfaces...........................................................................................................................................18
3.3.5 Draught limiter (swinging draught flap)...................................................................................................................19
3.3.6 Filling, lighting and ash door....................................................................................................................................19
3.3.7 Thermocontrol sensor...............................................................................................................................................19
3.3.8 Primary air and secondary air routes.......................................................................................................................20
3.3.9 Lambda sensor .........................................................................................................................................................20

3
Table of contents
4. Emissions measurement.............................................................................................. 21
4.1 Preparation ..................................................................................................................................21
4.2 Heating ........................................................................................................................................21
4.3 Measurement................................................................................................................................21
5. EC declaration of conformity .......................................................................................22

4
1. Important information for system operators
1. Important information for system operators
Dear Heating System Owner,
We would like to congratulate you on your new environmentally friendly boiler system. With the purchase of this
high-quality product by Windhager, you have selected a system that provides more comfort and optimised fuel consump-
tion while utilising an environmentally friendly means of saving resources. Your boiler was manufactured under strict
ISO 9001-certified standards, was subjected to extensive tests and all its components are recyclable.
On the following pages we have provided specific information and important tips regarding system operation, unit
functions and cleaning.
Note!
Operation of the boiler together with the InfoWINTouch display and operating unit is described in a
separate operating manual. Please also pay close attention to these instructions. Familiarity with the
material in this document will allow you to enjoy long-term operation of the unit. We wish you all the best
with your Windhager boiler!
1.1 General information
1.1.1 Manufacturer's obligations
Our products are manufactured in accordance with the essential requirements of the various applicable guidelines. They
therefore carry the label and are supplied with all the required documentation.
Technical details subject to change.
We as the manufacturer cannot be held liable in the following cases:
– Incorrect use of the unit.
– Failure to perform proper maintenance on the unit.
– Incorrect installation of the unit.
1.1.2 Installer's obligations
The installer is the person responsible for installing the unit. The installer must comply with the following instructions:
– Read and follow all instructions supplied with the unit.
– Carry out installation in accordance with the applicable standards and specifications.
– Explain to the operator how the system works.
– Make the operator aware of his obligation to inspect and maintain the unit.
– Hand over all operating manuals to the operator.
1.1.3 Operator's obligations
To ensure that the unit gives optimum service, the operator must follow these instructions:
– Read and follow the instructions in the operating manual.
– Installation and start-up must be performed by appropriately qualified technicians.
– Make sure the installer explains how the system works.
– Perform all the necessary checks and maintenance.
– Keep the instructions in good condition and store them near the unit.
This unit is not intended for use by persons (including children) who have physical or mental disabilities or sensory
impairment or who have no experience or knowledge of the correct use of the unit, unless supervised or trained by a
person responsible for their safety. Children should be supervised to ensure they do not play with the unit.

5
1. Important information for system operators
1.1.4 Spare parts
For spare parts, please contact the Customer Service partner or send an email to [email protected].com or phone
on +43 (0) 6212/2341-268.
1.1.5 Software
The software for the firing automates uses FreeRTOS. You can find the FreeRTOS source code as well as its licensing
terms on the website www.FreeRTOS.org.
1.2 Safety precautions
The boiler together with its accessories complies with the latest state of the art as well as the relevant safety regula-
tions, and is operated with electric current (230 V AC). Improper installation or repair can pose the danger of life-threat-
ening electric shock. Installation may be performed only by appropriately qualified technicians.
1.2.1 Caution symbols
Please take note of the following safety information levels in this manual.
DANGER Ignoring the warnings identified by this symbol can lead to serious injuries or death.
WARNING Ignoring the warnings identied by this symbol can lead to injury.
CAUTION Ignoring the warnings identified by this symbol can lead to malfunction of or damage
to the boiler or heating system.
Note!
The blocks of text identified by this symbol provide information and tips for operation.
1.2.2 General safety information
DANGER
When performing cleaning or repair work, disconnect the power plug!
When performing cleaning or repair work or before opening the cladding and covers
for electrical and moving parts, the boiler must be de-energised for safety reasons
(e.g. by disconnecting the power plug).

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1. Important information for system operators
1.3 Sources of danger
1.3.1 Power failure (or if the blower is not running)
WARNING
There is an increased risk of deflagration when opening the filling door if the blower
is not running. A self-test is performed following a power failure and then operation is
continued automatically.
1.3.2 Combustion air
Never seal openings that have been provided for letting air in and out!
1.4 Fuel
The boiler is designed to burn unprocessed firewood. The water content of the fuel must be between 15 and 25 %.
Guideline: wood that has been stored properly for around 2 years. The effects of any deviations from this guideline
should be taken into account.
– ½ m split logs: 50–53 cm long, edge length of approx. 8 to max. 15 cm; if lengths deviate a lot, e.g. 1/3m, change lling
to suit wood; always split round logs with a diameter of more than 8 cm.
– Wood briquettes: Burning of wood briquettes according to ÖNORM M7135.
– Residual wood: Burning of residual wood such as timber, boards, posts, etc., as long as the wood has not been treat-
ed with wood preservers or other chemicals containing halogenated organic compounds or heavy
metals (among such excepted residual materials are, in particular, construction and demolition
waste). Fuel wood must be added as appropriate to the material!
Unsuitable fuels:
– Solid fossil fuels: black coal, brown coal, coke, peat, etc.
– Wood chips, wood shavings, pellets, straw, grain, wood from short-rotation forestry, etc.
– Do not heat with plastics, PVC panels, sawdust or impregnated, glued wood residue or similar – these cause boiler
corrosion and are prohibited by the Federal Air Purity Act.
WARNING Do not fill with dusty fuels such as grinding dust or sawdust – risk of explosion!

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1. Important information for system operators
1.5 Start-up and maintenance
Have Windhager Customer Service or one of our customer service partners put your new boiler into service. In this way,
all functions of the new unit will be thoroughly checked; you will also benefit from the detailed information provided by
the system installer. Installation by a qualified technician as well as the maintenance required by the warranty condi-
tions and undertaken by Windhager Customer Service or a customer service partner will guarantee the optimal use and
service life of your boiler system. This is the only way to assure the benefits of this technologically advanced boiler and
guarantee safe, environmentally friendly and energy-saving system operation.
The following preconditions must be met before you order the initial start-up:
1.) Boiler installed correctly.
2.) System fully wired up electrically.
3.) System rinsed, filled and vented – heat consumption must be possible.
4.) Hot water tank connected to domestic water and filled.
5.) Sufficient quantity of fuel available (pellets, split logs, oil or gas).
6.) The customer must be present during start-up.
The initial start-up cannot be carried out if any of these points are neglected. The customer will be charged for
any unnecessary costs arising as a result.
Start-up and maintenance by Windhager Customer Service or a customer service partner are part of the guarantee
requirements of the enclosed "Warranty conditions".
Note!
When the boiler is started for the first time, bad smells may result from gas emissions from insulation or
paint residue being burnt off. Ensure that the boiler room/installation room is therefore well vented. Con-
densation may also form near the coasting surfaces and the combustion chamber temperature may only
increase after a delay.
1.6 Functional test
EN 12828 and ÖNORM B8131 require that the function of the system and related safety equipment be checked and
certified yearly by a qualified technician (installer, heating system contractor).
At two-year intervals, in accordance with ÖNORM H 5195 (2010 edition), the heating water condition must be checked
by a heating expert (installer) (see installation instructions – Heating water) to prevent corrosion and sediment accu-
mulation in the heating system and boiler.
In the event of repair work requiring a change of water in the heating system, the heating water is to be checked within
4 to 6 weeks after such work.
Corrosion and sediment resulting from improper heating water are not covered by the warranty.
1.7 Combination with automatic boiler (e.g. pellet or oil-
fired boiler)
If the LogWIN and an automatic boiler (e.g. pellet or oil-fired boiler) are connected to one flue, the cladding, filling,
lighting and ash doors and all cleaning openings of the LogWIN must be closed when the automatic boiler is operating
in order for the cladding door switch to be released and the automatic boiler to operate correctly (inleaked air).

8
2. Operation
2. Operation
2.1 Functional elements and operating controls
1........... Cladding door
2........... LED stripe (Accumulator charge status)
3........... InfoWINTouch
4.......... Boiler cover at rear – the cleaning cover for
coasting surfaces is underneath
5........... Lever for cleaning heating surfaces
6.......... Cladding door switch
7........... Filling door hook catch
8.......... Filling door
9.......... Lighting door
10 ........ Ash door
Supplied as standard:
– Instruction booklets
– Ash pan
– Hanger (for installation on the wall)
– Scraper
– Spatula
– Cleaning brush
– Poker
Optional accessories:
– Flue gas adapter
– Flue gas sensor
– Automatic ignition
Fig. 2 LogWIN Premium Touch
Fig. 3 LogWIN Premium Touch
3
2
1
4
5
6
7
8
9
10

9
2. Operation
2.2 Check before first heating
a) System pressure (heating water pressure): The system must be filled and vented. With the system cold, pressure
should be at least 1.0 bar (maximum 1.8 bar). If you have any questions, your installer will gladly answer them.
b) Ventilation: Please make sure the boiler room/installation room is well ventilated. The air supply must be as free
of dust as possible.
c) Flue: Please have the chimney sweep check the flue regularly, and, if necessary, clean it.
d) Barriers: Check that the barriers installed in the heating system are set correctly.
e) Buffer tank: If the charge status (see InfoWINTouch operating manual) is already 70 %, do not start or replenish
the fuel.
f) Thermal discharge safeguard: Check discharge funnel. Outflow must not drip.
2.3 Heating mode – preparing, starting or replenishing
fuel
DANGER
If the outside temperature is high of the flue is in direct sunlight, flue gas may discharge
into the boiler room/installation room in the start phase due to a lack of flue draught.
The flue gas may cause serious intoxication or deflagration.
Tip: Set the start times in the cooler morning or evening times and, together with your
chimney sweep, ensure that the flue system is working correctly in line with the con-
ditions listed above.
Fig. 4 LogWIN Premium Touch control panel
2.1.1 Control panel
InfoWIN Touch
See operating manual InfoWN Touch.
LED stripe
The LED stripe shows the charge status of the accumulator from blue (cold) to hot (red).
LED stripe InfoWIN Touch

10
2. Operation
3.) Attach the ash pan at the height of lighting door (central door) and hook in the cladding – Fig.7.
4.) Open the lighting door and vertical grate and evenly distribute the remaining ash in the filling chamber (Fig. 7).
Check to see whether the holes in the lateral hook-in plates and burnthrough opening (Fig.8) are clear.
If they are not, use the installed scraper to unblock them and/or remove excess ash from the filling chamber, but
not all of it as unburned wood charcoal can still be used.
Note!
Under no circumstances should you completely vacuum out the boiler before each start procedure!
2.3.1 Preparing heating mode
1.) Press the lever for cleaning heating surfaces around 5–10 times for each fill – Fig. 5.
2.) Open the cladding door. Blower starts up. Open the filling door (top door) until it makes contact with the lock, lift the
hook catch – (Fig.6), filling door fully open.
Fig. 5 Pressing lever for cleaning heat-
ing surfaces 5–10 times
Fig. 6 Opening the lling door lock
Fig. 7 Attaching the ash pan, removing ash Fig. 8 Filling chamber, holes in hook-in plate,
burnthrough opening
Holes in the
hook-in plates
Burnthrough
opening
Important note before starting or replenishing fuel:
Do not start or replenish fuel unless adequate heat consumption is assured, i.e.:
– Check the charge status of the buffer tank beforehand (see InfoWINTouch operating manual).
– Do not heat up or replenish fuel if this is already showing 70 %.
– Open the manual mixing valve, do not turn off the radiators.
– Correct amount of fuel – i.e. boiler only ¼–½ full at the turn of the seasons.
CAUTION Having a correctly sized buffer tank is essential for correct operation.

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2. Operation
Fig. 9 Section through the lling chamber
Hardwood or softwood logs
Edge length 8–15 cm
Softwood logs
Edge length 3–4 cm
Crumpled newspaper1
Kindling
2.3.2 Starting by hand (no automatic ignition)
1.) Put in a layer of dry kindling and on top of this screwed up paper/cardboard1.
The burnthrough opening must remain clear.
2.) First add smaller then larger split logs of increasing length and fill up filling chamber as required – Fig. 9.
Note!
To ensure clean combustion and quick ignition, fill the filling chamber at least halfway.
Always form the basic firebed with ½m logs.
3.) Close the filling door.
4.) Light the paper1with the lighting door and vertical grate open.
Tip: To simplify lighting, add a little more paper1at the front.
5.) Close the vertical grate.
6.) Press the button on the InfoWINTouch. Scroll to the combustion chamber temperature. Once the temperature in
the combustion chamber reaches 500°C, close the lighting door and the cladding door. This automatically starts
the heating programme.
Tip: If you cannot clearly hear a lighting noise, the burnthrough opening has probably been covered or the fuel has
been placed so as to create excessively large cavities. To improve ignition, clear the burnthrough opening.
1For reasons of air hygiene (LRV), fire-lighters must be used in Switzerland instead of paper/cardboard.
Note!
After starting, do not open the filling door except in order to replenish fuel. This ensures the fuel will burn
evenly without disruptions, and extends the replenishment intervals.

12
2. Operation
Fig. 10 Section through the lling chamber
Hardwood or softwood logs
Edge length 8–15 cm
Hardwood or softwood logs
Edge length 3–4 cm
2.3.3 Starting with automatic ignition1
CAUTIO N Before filling, ensure that there are no embers in the filling chamber – uncontrolled
spontaneous ignition possible!
1.) Close the vertical grate.
2.) First add smaller then larger split logs of increasing length and fill up filling chamber as required – Fig. 10. Before
closing the lighting door, check that there is wood just in front of the ignition opening – Fig. 11.
Note!
For reliable and efficient ignition, it is important that there is wood just in front of the ignition opening.
Always form the basic firebed with ½m logs.
3.) Close lighting door, filling door and cladding door.
is displayed on the InfoWINTouch – Fig.13.
4.) Press the ignition button ; "Ignite now", "With off period" and "Ignite automatically" are shown on the display –
Fig. 13.
5.) Select the required type of ignition – Fig. 14–Fig. 16.
"Ignite now": The ignition phase begins immediately after selection.
"With off period": Press or to set the time and confirm with the confirmation button – Fig.18. The
ignition phase only starts once the set time has elapsed and a heating request has been
generated by the control or an external ignition request.
"Ignite automatically": The ignition phase begins when there is a heating request from the control or an external
ignition request.
1Only for LogWIN with automatic ignition (accessories).
Fig. 11 Log placed in the correct position
in front of the ignition opening
Fig. 12 Log placed in the incorrect position –
NOT in front of the ignition opening

13
2. Operation
Set ignition
Ignite now With off period Ignite automatically
Set ignition
Ignite now With off period Ignite automatically
Set ignition
Ignite now With off period Ignite automatically
Fig. 13
Fig. 14 Fig. 15 Fig. 16
LogWIN
33 °C
Information level Start procedure
Set ignition
Ignite now With off period Ignite automatically
Fig. 17 Fig. 18
Set off period
00 : 00
Set ignition
Ignite now With off period Ignite automatically
Fig. 19
LogWIN
33 °C
Information level Start procedure
LogWIN
33 °C
Information level Ignition phase
Fig. 20 Fig. 21
Fig. 22 Fig. 23 Fig. 24
Fig. 25 Fig. 26 Fig. 27
LogWIN
33 °C
Information level Ignition ready
LogWIN
33 °C
Information level Ignition ready
LogWIN
33 °C
Information level Ignition phase
LogWIN
33 °C
Information level Ignition phase
LogWIN
33 °C
Information level Start procedure
LogWIN
33 °C
Information level Start procedure

14
2. Operation
2.3.4 Replenishing fuel – continuing heating mode
WARNING Open the filling door carefully (due to the risk of deflagration).
1.) Press the lever for cleaning heating surfaces around 5–10 times for each fill.
2.) Open the filling door as far as the stop against the catch, wait at least 15 seconds to allow low-temperature
carburisation gases to be sucked away. Lift the hook catch, open the filling door all the way.
3.) Checking the embers:
We recommend only replenishing fuel once the wood has burnt down.
– If there are still sufficient embers left, spread them evenly throughout the filling chamber and replenish the
fuel as required. Place 1/3 m logs in the same direction as the 1/2 m logs. Place in each layer of logs, alternating
between the front and the rear.
– If there are no embers or only a few, the system will need heating up again – see Section 2.3.1.
4.) Close filling door and cladding door.
2.4 End of burning
At the end of combustion, the blower continues running until the combustion chamber has cooled down, in order to
make best use of the remaining embers depending on the burnout mode selected. Then it turns off (stand-by operating
phase).

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3. Care, cleaning and maintenance
3. Care, cleaning and maintenance
Cladding:
Clean the boiler cladding with a moist cloth as needed. In the event of heavy soiling, use soapy water or diluted suds
(do not use caustic chemicals or sharp cleaning instruments).
Coasting surfaces:
Every millimetre of soot on the coasting surfaces means about 5 % more fuel consumption. A clean boiler saves fuel
and protects the environment.
Save fuel – always clean the boiler in good time
CAUTION
The specified cleaning intervals are for guidance only! The cleaning intervals vary de-
pending on the quality of the fuel, the nature of operation and the different operating
phases (e.g. a lot of partial load, the blower spending a lot of time stationary during
operations).
3.1 For each fill
3.1.1 Lever for cleaning heating surfaces
– Press lever for cleaning heating surfaces 5–10 times – Fig.28.
Fig. 28 Pressing lever for cleaning heating surfaces 5–10 times
3.1.2 Ignition openings on lighting door1and vertical grate
Check ignition openings on lighting door and vertical grate, clear if necessary – Fig.29.
1Only for LogWIN with automatic ignition (accessories).
Fig. 29 Checking the ignition openings
Ignition opening on lighting door
Ignition opening on vertical grate

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3. Care, cleaning and maintenance
3.2 Weekly
3.2.1 Removing the ash
Recommended cleaning implement: Scraper
– Attach ash pan at height of lighting door (central door) in the intended hook-in plate – Fig. 30. Open lighting door
and vertical grate and sweep most of the remaining ash from the filling chamber into the ash pan.
– Place ash pan under ash door (bottom door). Open ash door and carefully take all of the accumulated ash out of the
combustion chamber and ash chamber – Fig.31.
Fig. 30 Attaching the ash pan, removing ash Fig. 31 Removing ash from combustion chamber
and ash chamber
Holes in the
hook-in plates
Combustion
chamber
Ash chamber
3.3 Annually
3.3.1 Carburisation gas duct
Recommended cleaning implement: Cleaning brush and vacuum cleaner
– Clean duct for carburisation gas extraction – Fig.32.
Fig. 32 Cleaning the carburisation gas extraction
DANGER Risk of re if ash has not cooled! Store ash in lockable and non-combustible container on
non-combustible base for at least 48 hours.
CAUTION The ash may be loaded with heavy metals. Heavy metals may affect soil fertility. Ash
is not therefore suitable as a fertiliser and should be disposed of with residual waste.

17
3. Care, cleaning and maintenance
3.3.2 Blower box, blower wheel
DANGER Before cleaning the blower box and blower wheel, de-energise the boiler! Disconnect
the power plug at the rear – Fig.33.
Recommended cleaning implement: Spatula, brush and vacuum cleaner
– Disconnect the blower plug – Fig. 34.
– Remove the wing nuts from the blower unit – Fig. 34.
– Remove the blower unit and clean the blower wheel – Fig. 35.
– Clean the interior of the blower box thoroughly– Fig. 36.
Fig. 33 Disconnecting the power plug
Power plug
Fig.34 Disconnecting the blower plug and
removing the wing nuts
Fig. 35 Cleaning the blower wheel Fig. 36 Cleaning the interior of the blower box
Assembly:
By working through these steps in reverse order.

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3. Care, cleaning and maintenance
3.3.4 Upper coasting surfaces
Recommended cleaning implement: Spatula, brush and vacuum cleaner
– Remove the rear boiler cover – Fig. 37.
– Remove the screw connections on the cleaning cover and remove the cover. Clean the upper parts of the coasting
surface thoroughly – Fig.38.
Fig. 37 Removing the rear boiler cover Fig. 38 Cleaning the upper coasting surfaces
Flue gas sensor
(accessories)
Assembly:
By working through these steps in reverse order.
3.3.3 Exhaust pipe
Recommended cleaning implement: Spatula, cleaning brush, soft cloth
– Clean the exhaust pipe leading to the flue through the cleaning opening provided in the exhaust pipe.
– Use soft cloth to clean flue gas sensor (accessories).
CAUTION
Watch out for the sensors in the flue outlet when cleaning the exhaust pipe. Do not
bend or damage them. No warranty claims will be accepted for damage attributable to
incorrect cleaning!

19
3. Care, cleaning and maintenance
3.3.5 Draught limiter (swinging draught flap)
Recommended cleaning implement: Spatula
If a draught limiter is fitted (by customer in flue or exhaust pipe), check this for ease of movement and if necessary
clean or have adjusted by a specialist.
3.3.6 Filling, lighting and ash door
Recommended cleaning implement: Spatula
– Open the doors. Door seals must leave a clean imprint. Remove any crusting and deposits that could impair the door
seals and ease of movement.
If the door seals do not leave a clean imprint or are not sealed, adjust the doors and/or replace the seals.
– If the doors do not move freely, lubricate the bearings of the door hinges with heat-resistant paste (e.g. graphite
paste).
3.3.7 Thermocontrol sensor
Recommended cleaning implement: Brush, soft cloth
– Clean fly ash off the thermocontrol sensor with a brush or soft cloth – Fig. 39.
Fig. 39 Cleaning the thermocontrol sensor
Thermocontrol sensor

20
3. Care, cleaning and maintenance
3.3.8 Primary air and secondary air routes
These parts are also checked and cleaned during maintenance by Windhager Customer Service or the customer service
partner.
Recommended cleaning implement: Spatula, vacuum cleaner
– Remove hook-in plates from both sides of filling chamber and check the primary air openings under them. Clear if
necessary – Fig. 40.
– Take out both burning plates, vacuum out the ash and check the secondary air openings under them. Clear if neces-
sary – Fig. 41.
Fig. 40 Removing hook-in plate;
checking the primary air openings.
Fig. 41 Taking out the burning plates, checking
the secondary air openings.
Secondary air
openings
Primary air
openings
3.3.9 Lambda sensor
These parts are also checked and cleaned during maintenance by Windhager Customer Service or the customer service
partner.
Recommended cleaning implement: Brush, soft cloth
– Remove the rear panel at the bottom – Fig.42.
– Disconnect the lambda sensor and unscrew it using an open-ended wrench (WAF 22) (Fig. 43). Carefully remove dirt
with a brush or soft cloth.
Fitting the lambda sensor: Screw in sensor until hand-tight and use wrench to tighten around 1/4 of a turn. Connect
the sensor. Screw rear panel back on.
Fig. 42 Unscrewing the rear panel at the bottom Fig. 43 Disconnecting and unscrewing the
lambda sensor
Assembly:
By working through these steps in reverse order.