Guarantee and warranty limitations

M a n u a lO p e r a t i n g

VestoWIN KlassikFloor heating boiler

04/2010 093022/00

1.1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.2 Appropriate fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.3 Important information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

1.4 Functional test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

1.5 Checking the heating water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

1.6 Combination with automatic boiler (e.g. pellet or oil-fired boiler) . . . . . . . . . . . . . . . . . . .4

2.1 Functional elements and operating controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.2 Combustion controlling mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.3 Fuel economy slider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.4 Throttle flap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.5 Height-adjustable grate with vibration device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.6 Minimum thermostat: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.7 Cleaning equipment and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.8 Ground protection tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.9 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

2.10 Initial start-up of heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

2.11 Comments relating to heating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

2.12 Heating operation heating up or refilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3.1 Cladding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.2 Hot plate, hot plate frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.3 Coasting surfaces and flues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.4 Grate lifting equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

3.5 Checking and servicing the thermal process safeguard . . . . . . . . . . . . . . . . . . . . . . . . . . .14

3.6 At the end of the heating period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.1 Boiler overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

4.2 Flue gas escaping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

4.3 Boiler not getting up to temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

4.4 Very dirty boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Table of contents:Page4.5 High wood consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

10

Dear Heating System Owners,

We would like to congratulate you on your new environmentally friendly boiler system. With the purchase of this high-quality product from WINNDHAGER ZENTRALHEIZUNG, you have selected a system that provides more comfort and optimised fuel consumption 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.The following instructions are available for operation and installation: Heating expert: installation instructions, list of spare partsSystem owner: Operating Manual, heating instructions

On the following pages we have provided specific information and important tips regarding system operation, unit functions and cleaning. Please 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 WINDHA- GER boiler!

Cordially,

WINDHAGER ZENTRALHEIZUNG

1.1 Safety precautions

The boiler and related accessories are state of the art and meet all applicable safety regulations.

Your boiler is fitted as standard with a minimum thermostat to control the heating pump and hot water tank feed pump if fitted. The minimum thermostat operates at a voltage of 230 V AC. Improper installation or repair can pose the danger of life-threatening electric shock. Installation may be performed only by appropriately qua- lified technicians.

Caution symbols

Please take careful note of the following symbols in this Operating Manual.

Ignoring the warnings identified can lead to personal injury.

Ignoring the warnings identified can lead to malfunction of or damage to the boiler or heating system.

1.2 Appropriate fuel

The boiler is suited for the burning of any type of wood in the form of unprocessed firewood. The water con- tent of the fuel must be between 15 25 %. Approximate value: wood stored correctly for around 2 years.

1/3 m split logs: max. 35 cm long, approx. 6 to max. 10 cm edge length;always split round logs with a diameter in excess of 8 cm! Wood briquettes: burning of wood briquettes, according to NORM M7135 and/or DIN 51731 Residual wood: provided that the wood isnt pressure impregnated or coated, e.g. timber, residual building wood, etc. If using large boards, adapted filling should be undertaken!

Do not fill with dusty fuels risk of explosion!

Important information for system operatorsDo 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.

1.3 Important information

The oven must not be modified unless using the tested original accessories we provide or if the work is under- taken by our Customer Service.Only fit original spare parts. These can be obtained from your customer service partner or directly from our- selves.Proper and orderly installation by an expert in compliance with the regulations and specifications applica- ble at the installation site. Observance of information provided in installation instructions and involvement of responsible chimney sweep to assess structural or technical circumstances.Correct operation, observing the details provided in the operating manual and information relating to safety and environmental protection. Correct fuel through use of environmentally-friendly, high-quality and dry types of fuel.Regular care and cleaning of oven, flue gas outlets, connecting piece and flue. If this is not done, malfuncti- ons, faults and damage will automatically increase, resulting in annoyance and costs. Wearing parts, parts subject to high thermal loads or broken oven parts should be replaced as quickly as possible.

Caution: the flue may block if the oven is heated again after a long period of it not being used. Befo- re starting the oven, have the flue checked by a specialist (chimney sweep).

Only open ash door to heat up and remove ash. To prevent heating gas from escaping, the only other rea- son for opening the heating door is to top up fuel. Ensure sufficient supply of fresh air in the installation room when heating. The air must be replaced at least0.8 times an hour through constant and reliable room venting. Fresh air may have to be provided from out- side if the windows and doors in the room where the oven is installed are well sealed or if this room con- tains other equipment, such as extractor hoods, clothes dryer, fan etc. Correct response to fires in the flue:Keep heating doors and ash doors closed. Move fuel economy slider to bottom position and combustion controlling mechanism to position 0. Never try to put out a fire in the flue using water. The sudden appea- rance of huge amounts of steam may cause the flue to burst.

1.4 Functional test

EN 12828 requires that the function of the system and related safety equipment (e.g. safety valve, thermal pro- cess safeguard) be checked and certified yearly by a qualified technician (installer, heating system contractor).

1.5 Checking the heating water

The chemical composition of the heating water must meet the specifications of NORM H 5195 Part 1 or VDI2035 T1. According to NORM M 5195 Part 1, the condition of the heating water must be checked every 2 years by a heating technician in order to avoid corrosion and sediment accumulation in the heating system.The check must be performed once every year in heating systems with more than 1500 litres of heating water.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 guarantee and warranty.

1.6 Combination with automatic boiler (e.g. pellet or oil-fired boiler)

If the VestoWIN and an automatic boiler (e.g. pellet or oil-fired boiler) are connected to one flue, the heating and ash door must be closed when the automatic boiler is operating so that the automatic boiler will be able to operate correctly (leaked in air).

2.1 Functional elements and operating controls

The floor heating boilers of the VestoWIN series are central heating boilers with upper burning, an integrated minimum thermostat and a height-adjustable grate.

1 ..........Insulating cover1 2 ..........Heating door3 ..........Remote thermometer (boiler thermome-ter)4 ..........Ash door5 ..........Combustion controlling mechanism2 6 ..........Fuel economy slider7 ..........Rating plate8 ..........Door catch3 9 ..........Vertical grate10 ........Grate lifting shaft11 .........Ash pan12 ........Grate vibration unit13 ........Ground protection tray

4Supplied as standard:5 Folder containing instructions6 Poker Soot scraper Cleaning brush Operating handle Ash panCrank for grate vibration unit and for grate lifting equipment Wall socket

Fig. 2 VestoWIN Klassik

7

89

10

11

12

13

OperationFig. 3 VestoWIN Klassik; heating and ash door open

2.2 Combustion controlling mechanism

The combustion controlling mechanism is fitted in the ash door and is operated using the rotary knob Fig. 4. It controls the: combustion air supply boiler temperature and therefore performanceunder consideration of the ideal supply of primary air for low emissions.

11 ..........Knob for combustion controlling mechanism2 ..........Mark for combustion controlling mechanism2 3 ..........Knurled screw for fuel economy slider3 4 ..........Scale for fuel economy slider,top = fully open4 bottom = closed

Fig. 4 Ash door with combustion controlling mechanism and fuel economy slider

2.3 Fuel economy slider

The fuel economy slider (Fig. 4) is fitted in the ash door, along with the combustion controlling mechanism. Its job is to: save fuel, extend burning, keep the flue gas temperature low, and therefore improve efficiency.

The fuel economy slider adjusts the combustion air supply to the flue draught present (feed pressure) and to the boiler output required regardless of the combustion controlling mechanism.

A minimum flue draught of 0.15 mbar is needed for the VestoWIN Klassik 170/220. If the flue draught matches this value, adjust the fuel economy slider as described in the heating instructions.

If the flue draught is slightly above 0.15 mbar, close the fuel economy slider a little. If the flue draught is too low, open the fuel economy slider a little.To do this, loosen the knurled nut, move the slider to the corresponding position and retighten the nut. If the flue draught is significantly greater than 0.25 mbar, contact the chimney sweep for advice.

If the flue draught is too high (> 0.25 mbar), the boiler components will be subject to excess thermal load and the warranty invalidated.

2.4 Throttle flap

The throttle flap is located in the flue outlet. The only part visible is the operating knob which protrudes from the flue outlet.

The throttle flap must always be in the open position when heating up Fig. 5. reduces the flue draught if this is too high for too long (set as necessary).

The slot on the operating knob shows you the position of the throttle flap. Slot position = flap position. When heating up the oven, open the throttle flap all the way Fig. 5. Fully rotate the throttle flap once very 14 days to prevent soot deposits.

Fig. 5 Throttle flap open Fig. 6 Throttle flap closed

2.5 Height-adjustable grate with vibration device

Lifting or lowering the grate adapts the filling chamber for normal mode (e.g. heating and cooking in winter and at turn of the seasons, approx. 56 kg of wood) grate lowered economy mode (e.g. cooking in summer, approx. 23 kg of wood) grate raised (around 10cm below the secondary air pipes).

Use the crank for the lifting equipment to adjust the grate.The crankshaft is behind the ash door, below the vertical grate Fig. 7.

Turn clockwise: to raise Turn anticlockwise: to lower

Movement is limited by stops at the top and bottom so do not exercise force. Do not adjust the grate with a cold fuel fill.

Fig. 7 Height-adjustable grate Fig. 8 Vibration device

Give the grate a good shake before repositioning. The vibration shaft is in the bottom right, next to the combu- stion controlling mechanism Fig. 8. The crank for the grate vibration unit is used to operate the vibration grate when the ash door is closed, shake the grate in any position, thereby ensuring convenient handling and optimum air supply.

2.6 Minimum thermostat:

The minimum thermostat only switches on the heating pump and also the hot water tank feed pump above a boiler water temperature of 65 C. This prevents condensate from forming and therefore boiler corrosion, which extends the service life of the floor heating boiler.

The minimum thermostat must be connected to prevent condensation forming. The preset switching temperature of 65 C must not be changed. Failure to observe this requirement may result in boiler cor- rosion and invalidation of the warranty.

2.7 Cleaning equipment and accessories

The following are supplied for each oven:

1 2 3 4 5 6 7

Fig. 9 Cleaning equipment and accessories

1........Wall socket2........Poker3........Soot scraper4........Cleaning brush5........Operating handle6........Crank for grate lifting equipment and grate vibration unit7........Ash pan

You can use the operating handle: to open the smoke hole cover to adjust the throttle flap to open the vertical grate

2.8 Ground protection tray

The ground protection tray is fitted in the boiler base.It is slid out around 5 cm by a spring when the ash door is opened Fig. 10. Pull the ground protection tray all the way out to empty the ash pan or clean the boiler. Its purpose is to collect falling ash.

Fig. 10 Ground protection tray

2.9 Safety information

Do not touch the hot parts of the oven (hot plate, oven frame, oven, flue pipe, insulating cover, grate, ash pan, ash deflector etc.). Do not place combustible objects on the oven or insulating cover. If the grate is in its top position, the hot plate may start to glow. Open the insulating cover when in this grate position. Other than when heating up, the ash door must be kept closed otherwise you cannot control the burning and there is a risk of overheating. The integrated mixer (in the fittings cabinet) should adjust the temperature in the radiators as required. To prevent the risk of overheating, never fully close the mixer. Never cause the hot plate to glow. Do this by replenishing fuel with as small a volume as possible and moving the fuel economy slider to the correct position. Never heat the oven if there is too little or no water in the system or if the heat dissipated is < 6 kW. Do not operate the boiler above a boiler temperature of 90 C. Do not set either the combustion controlling mechanism or the fuel economy slider above the values stated in the heating instructions.

2.10 Initial start-up of heating

The device needs a constant supply of combustion air. The windows and doors at the installation site must not therefore be airtight. This is especially important in installation rooms with less than 4 m3 per kW of nominal heat output.Vapour extraction systems, fans and other fireplaces may have a negative impact on combustion. Provide a supply air opening if necessary.

When the device is installed:

Have the flue draught measured. The correct flue draught (feed pressure) is the basis for setting the fuel eco- nomy slider and for the device functioning perfectly. Fill the system with water. Fully vent the system. Open all barriers (shut-off valves, sliders etc.).Switch on the heating pump. If the minimum thermostat is connected to the heating pump, this only allows the pump to start at a boiler temperature of 65 C. If combined with Vesto 200 fittings cabinet, the heating pump is controlled by this (see operating manual for Vesto 200). Clean all cladding parts to prevent flecks burning in. Unpack the hot plate and remove grease from top.Note: When heated for the first time, the remaining oil will vaporise and a little smoke and odour will be pro- duced. You can remove oil residue with liquid cleaning agents. Ensure that the installation room is therefore well vented.

2.11 Comments relating to heating mode

1) Keep boiler temperature above 70 C at all times by readjusting with the combustion controlling mechanism and mixer.2) We have found the flue draught to be lower in summer than winter.The boiler could therefore produce smoke when heating up or during operation.

Remedy: Close combustion controlling mechanism before opening heating door. Pre-heat flue through cleaning door. Replenish with small amounts of fuel.

2.12 Heating operation heating up or refilling

Check before first heating

System pressure (heating water pressure):The system must be filled and vented. With the system cold, pressure should be at least 1.0 bar (maximum1.8 bar). If you have any questions, your installer will gladly answer them. Ventilation:Please make sure the installation room is well ventilated. The air supply must be as free of dust as possible. Flue:Please have the chimney sweep check the flue regularly, and, if necessary, clean it. Barriers:Check that the barriers installed in the heating system are set correctly. Thermal process safeguard:Discharge funnel check. Outflow must not drip.

2.12.1 Heating up starting heating operation

Proceed as follows:

Make the heating pump ready (voltage supply, any manual switches).Clean ash off grate. The ash can be easily removed by folding up the vertical grate with the grate in its bot- tommost position.First spread screwed up paper over the entire grate area and then add wood chopped into small pieces to a height of around 1520 cm. Fully open combustion controlling mechanism and fuel economy slider to ensure a sufficient supply of air. Open throttle flap. Ignite. The ash door may initially be opened a crack and then closed again after around 12 minutes.Please note: Flue gas may escape if the flue draught is too low. If this happens, the ash door should be closed again and the fuel economy slider moved to the centre position. Wait until the start-up material is fully burnt. Add 1 layer of 33 cm split logs (approx.10 cm high) lengthwise and spread evenly. When the first layer of wood is fully burnt, move the fuel economy slider roughly to the centre.

Settings for heating up:

Fuel1/3 m split logs

Ash doorOpen slightly if necessary, close after 12 min.

Combustion controlling mechanism68

Height-adjustable grateBottom (normal mode) or top (economy or cooking mode)

Heating pumpReady, i.e. minimum thermostat switches on from around 65 C

Throttle flapOpen

Fuel economy sliderCentral position to fully open (depending on flue draught)

2.12.2 Replenishing fuel continuing heating operation

Open heating door with care as flue gas may escape.

For low emissions and high efficiency, we recommend:

replenishing with small volumes replenishing at short intervals (3060 min) briefly (12 min) opening the fuel economy slider all the way for rapid ignition

2.12.3 Settings and burning time

Set fuel economy slider according to flue draught!

Grate positionFillingDurationHeat outputFuel economy sliderCombustion control- ling mechanism

Bottom3 kg35 min.Water and hot plateCentre6-8

Bottom6 kg1 hourWater and hot plateCentre6-8

Top1.8 kg20 minWater and hot plateAlmost closed6

2.12.4 Normal mode

The height-adjustable grate is in the bottommost position (Fig. 11) and the heating-up process is following the description provided in Section 2.11.1.In normal mode you can cook in a similar way to economy or cooking mode!

Fig. 11 Height-adjustable grate at bottom maximum filling chamber

The maximum fill is 6 kg of split logs (33 cm) added lengthwise, but no higher than the bottom edge of the secondary air pipes. Depending on their size, this will be around 57 logs. If wood has been cut too long, it can be added crosswise. This volume of wood will give you a burning time of around 11.5 hours.

2.12.5 Economy or cooking mode

The height-adjustable grate is around 10 cm Fig. 12.The oven starts up as described above. But do use smaller volumes of fuel (approx. 2 kg of wood). The highest oven temperature occurs on the smoke hole cover in the centre. This is the best place for rapid cooking. The areas around the edges are best for slow cooking or keeping warm.

Fig. 12 Height-adjustable grate at top

When in the top grate position, the heat output is not suppressed by the water system! Sufficient dis- sipating heat of at least 6 kW (e.g. hot water tank loading) should also be ensured during cooking mode!

2.12.6 Heating at the turn of the seasons

At outside temperatures above 15 C, there is a risk of only a moderate fire being produced due to the low feed pressure in the flue. This will result in increased formation of soot in the ovens flue gas ducts and in the flue. Increase the primary air supply by opening the fuel economy slider, poking more often and replenishing more frequently and with smaller amounts. This can reduce the formation of soot at the turn of the seasons.

3.1 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 strong cleaners or sharp cleaning instruments).

3.2 Hot plate, hot plate frame

Immediately clean up any spills or grease splashes.The best way to clean a dirty hot plate is with a liquid cleaning agent (burnt in dirt or soot can be removed with fine steel wool). After cleaning, an acid-free oil (e.g. edible oil) should be applied (rub in oil with cloth) to the hot plate (lukewarm is best).

Only use a few drops otherwise odours may be produced when you next heat the hot plate up.

A standard oven paste can also be used for care.Any fine-grain cleaning agent is suitable for the hot plate frame.

3.3 Coasting surfaces and flues

Every millimetre of soot on the coasting surfaces and in the flues means about 5 % more fuel consumption. Aclean boiler saves fuel and protects the environment.Save fuel always clean the boiler in good time!

During the heating period, clean the boiler every 12 months. The specified cleaning intervals are for gui- dance only! The cleaning intervals vary depending on the quality of the fuel, the nature of operation and the different operating phases (e.g. a lot of partial load, long stationary periods during operations).

Cleaning sequence:

1. Remove insulating cover and hot plate and clean Fig. 13.2. Lift flue baffle plates up and out as shown in Fig. 14 and clean.3. Use soot scraper and cleaning brush to shear off and clean boiler walls and side/rear flue gas outlets.4. Scraped off soot is best hoovered up with a vacuum cleaner or removed with the soot scraper.5. Refit flue baffle plates correctly and fit hot plate and insulating cover.

Ensure the flue baffle plates are positioned correctly when assembling.

Care and cleaning

Fig. 13 Cleaning insulating cover and hot plate

Fig. 14 Removing flue baffle plates

3.4 Grate lifting equipment

Lubricate the shafts of the grate vibration unit and grate lifting equipment frequently with a heat-resistant lubri- cant Fig. 15.

Grate lifting equipment

Grate vibration unit

Fig. 15 Lubricating grate vibration unit and grate lifting equipment

3.5 Checking and servicing the thermal process safeguard

The function of the thermal process safeguard must be checked once a year by a technician and the amount of limescale in the thermal safety device must be checked. If there is limescale in the thermal safety device then it must always be removed.

- Press the red cap against the valve (Fig. 16) > Water must flow out into the funnel. Little outflow at funnel > Limescale in thermal safety device (pump limescale remove e.g. formic acid through the thermal safety device). Thermal process safeguard dripping > Clean the seal on the piston and valve seat. If the seal is damaged > Renew the piston.Please note: There is no need to remove the fitting for this pur- pose!

Fig. 16 Thermal process safeguard

3.6 At the end of the heating period

Clean the boiler thoroughly see Section 3.3. Check the flue pipe to the flue for dirt and clean at least once a year. Close all doors and air chokes. Do not drain off the water.If the device remains out of service for a long while during the heating period, the components carrying water may freeze. Fill with antifreeze.

Before calling WINDHAGER Customer Service or your customer service PARTNER due to a malfunction, plea- se first make a note of the following data from the rating plate: Type Factory number Year of manufactureYou will find the rating plate on the inside of the heating door Fig. 17.

Rating plate

Fig. 17 Rating plate

4.1 Boiler overheating

The boiler may overheat if:

there is too little water in the system. the boiler or system are not fully vented. circulation in the radiators and to the hot water tank is interrupted (mixer closed, valve closed). the pump is stationary. the combustion controlling mechanism is set too high. the ash door is open. the fuel economy slider is set too high. the height-adjustable grate is set incorrectly (winder mode at bottom in summer).

If the thermal process safeguard is connected to the built-in thermal safety device, the thermo valve sensor allows coolant to flow at a boiler water temperature of more than 95C. This prevents the boiler from overheating furt- her.

Important note!

Action to take in the event of overheating when the thermal process safeguard is not working:

Open all hydraulic blocking organs (mixers, valves). Close fuel economy slider. Close combustion controlling mechanism (turn shut until strong resistance can be felt). Close the ash door. Open hot water taps.

TroubleshootingIf none of these actions bring the desire result, remove the firebed.

4.2 Flue gas escaping

Flue gas escapes when the flue draught is too low.

Remedy for flue gas escaping when heating up:

Close ash door, set fuel economy slider to centre. In the event of low-pressure weather conditions: use paper to pre-heat the flue (flue cleaning door) to reme- dy overpressure in the flue.

Remedy for flue gas escaping when replenishing:

You were replenishing too soon, i.e. there is still too much material in the boiler it is best to wait until there are just embers. Before opening the filling door, the fuel economy slider can be fully closed, then wait a few minutes before opening the heating doors.

Remedy for flue gas escaping permanently:

Set the fuel economy slider no higher than the centre, and below if necessary. Have the flue draught checked by a chimney sweep during use. This must be > 0.15 mbar. If this draught is not reached during operation, you should talk to your chimney sweep / installer about renovating the chim- ney.With the VestoWIN Klassik 220, a temporary solution is to remove the side draught baffle plates (Fig. 14) (less resistance)

4.3 Boiler not getting up to temperature

Cause: You are not using enough material for ignition (paper, lighter) or the chunks of wood used for heating are too large

The screwed up paper should cover the whole grate area or use wood chopped to a sufficient fineness (edge length < 4 cm)

Cause: The chunks of wood used are too large

In particular when heating up or if only replenishing very infrequently (> 2 hours), the embers present are often insufficient. We would recommend adding a layer of finely chopped wood to the boiler before reple- nishing with larger pieces of wood.The grate should also first be well shaken and the fuel economy slider fully opened after replenishing (depen- ding on the flue) so that the wood ignites quickly.

Cause: he wood used is too damp

Damp wood should be between 1525 %.This usually corresponds to wood that has been stored for 12 years in a well vented place. When burning wood which is too damp, some of the combustion energy first has to be used to dry the wood sufficiently. This cools the burning process and the device produces less output and poor emissions values (serious device contamination).

Cause: The system's heating requirements are too high

With very large systems in particular, it may take several hours for the boiler temperature to increase signi- ficantly above 70 C. This is not a malfunction because the system's entire water content first has to be hea- ted up.If the temperature cannot be seen to have increased after a full day of uninterrupted heating, you should contact the installer and arrange for the heating requirements of the building to be calculated.

4.4 Very dirty boiler

Cause: Insufficient heat consumption

Minimum heating consumption of 6 kW should be ensured in the long term, i.e. open radiators or open any manual mixing valves present. The replenishing intervals should also be extended and the amounts replenished reduced.

Cause: Return temperature too long in the long term

If your system is very large and your heating requirements high, it will take a very long time for the return temperature to rise. If this is a recurring problem, please contact your installer and arrange for the heating requirements to be calculated. If using a VestoWIN boiler to load a buffer tank, a return hold-up group with a return temperature of 55 C is needed.

4.5 High wood consumption

Cause: Flue draught too high

The VestoWIN boilers nominal output is reached at a flue draught of around 0.15 mbar. If the actual flue draught is considerably greater than this (> 0.20 mbar), the device will overheat.In other words, more wood is emitted as gas and burnt, which increases the flue gas temperature and redu- ces efficiency.

Remedy:

The fuel economy slider should be closed further, which will effectively reduce the output and increase devi- ce efficiency again.

for VestoWIN floor heating boiler / central heating cooker range

Issued by: WINDHAGER ZENTRALHEIZUNG Technik GmbH Anton-Windhager-Strasse 20A-5201 Seekirchen

Subject of the declaration: VestoWIN floor heating boiler / central heating cooker rangeWe hereby declare that the series of devices listed above and produced by ourselves satisfy the main protec- tive requirements of the following directives:

Document no.Title

89/106 EEC73/23 EEC89/336 EECConstruction Products DirectiveLow-Voltage DirectiveEMC Directive

Seekirchen, 24 September 2009 Windhager Zentralheizung Technik GmbH

Declaration of conformityJohann Thalmaier, Board of Directors

The guarantee and warranty limitations require that the boiler and all accessories be properly installed other- wise the manufacturers guarantee will not be honoured.Malfunctions resulting from improper operation or adjustment as well as use of poor or not recommended fuel types are not covered by the guarantee and warranty. Further, the warranty shall be void if equipment other than that provided by WINDHAGER is installed. The special warranty restrictions for your system are available in the Warranty Conditions folder supplied with your boiler.

Austria:Windhager Zentralheizung GmbHGermany:Windhager Zentralheizung GmbHSwitzerland:Windhager Zentralheizung Schweiz AG

A-5201 Seekirchen bei SalzburgAnton-Windhager-Str. 20Tel. +43 (0) 62 12/23 41-0Fax +43 (0) 62 12/42 28E-mail: info@at.windhager.comD-86405 Meitingen bei AugsburgDeutzring 2Tel. +49 (0) 82 71/80 56-0Fax +49 (0) 82 71/80 56-30E-mail: info@de.windhager.comCH-6203 Sempach-Station bei LuzernIndustriestrasse 13Tel. +41 (0) 41/46 94 69-0Fax +41 (0) 41/46 94 69-9E-mail: info@ch.windhager.com

www.windhager.com

Subject to technical modifications. AWP-bersetzt aus 024095/01