Windhager BIOWIN 2 TOUCH User manual

EN
PELLET BOILER
09 /2020 094896/02
INSTALLATION INSTRUCTIONS
BIOWIN 2 TOUCH
FOR USE IN CANADA / USA
www.firetesting.com

2
Table of contents
TABLE OF CONTENTS
IMPORTANT INFORMATION .............................................................................................. 
1. General information ....................................................................................................................... 4
1.1 Relevant documents ...................................................................................................................................................5
1.2 Safety instructions and other symbols in this documentation...................................................................................5
1.2.1 Structure of safety instructions....................................................................................................................................... 5
1.2.2 Symbols, type of risk or meaning.................................................................................................................................... 5
1.2.3 Keywords.........................................................................................................................................................................6
2. Safety ........................................................................................................................................... 6
2.1 General safety information.........................................................................................................................................6
2.2 Liability exclusion ......................................................................................................................................................7
2.3 Safety instructions .....................................................................................................................................................7
3. Flue .............................................................................................................................................12
3.1 Adjusting the barometric damper............................................................................................................................. 12
4. Boiler room/installation room........................................................................................................13
5. Fuel storage .................................................................................................................................13
6. Initial commissioning and operating instructions........................................................................... 14
7. Disposal/recycling ....................................................................................................................... 14
FOR THE INSTALLER........................................................................................................ 
8. Scope of supply, packaging............................................................................................................15
9. System........................................................................................................................................ 16
9.1 Area of use................................................................................................................................................................16
9.2 Standards .................................................................................................................................................................16
9.3 Return temperature ..................................................................................................................................................16
9.4 Thermal storage (buffer tank) ..................................................................................................................................16
9.5 Operation by control ................................................................................................................................................ 17
9.6 System water ............................................................................................................................................................ 17
9.7 Water-side resistance (pressure loss) ......................................................................................................................19
10. Combustion air ............................................................................................................................ 19
10.1 Combustion air supply directly from the installation room .....................................................................................19
10.2 External combustion air supply................................................................................................................................19
11. Installation sequence................................................................................................................... 20
11.1 Parts designations for installation ...........................................................................................................................20
11.2 Positioning and installation .................................................................................................................................... 21
11.2.1 Removing the crate ........................................................................................................................................................21
11.2.2 Taking the boiler off the installation pallet and transporting it to where it is to be installed...................................... 22
11.3 Remove the desiccant bags ......................................................................................................................................23
11.4 Installation (observe minimum clearances – Section11.5).......................................................................................24
11.5 Minimum clearances for fire protection, cleaning and full service ..........................................................................25
11.6 Installing the drain cock...........................................................................................................................................26
11.7 Moving the flue connection to the rear ....................................................................................................................27
11.8 Installing the integral fuel hopper............................................................................................................................29
11.9 Integral fuel hopper cladding...................................................................................................................................35
11.10 Aligning the boiler horizontally................................................................................................................................39
11.11 Cladding door and side panel.................................................................................................................................. 40
11.12 InfoWIN Touch and operating panel .........................................................................................................................41
11.13 Cladding cover and insulation..................................................................................................................................42
11.14 Ash box and cover below the integral fuel hopper ...................................................................................................43
11.15 Installing the feed and return air hose (BioWIN 2 Touch Premium/Exklusiv only).................................................. 44
11.16 Cleaning and operating implements.........................................................................................................................45
11.17 Installing the connecting flue pipe.......................................................................................................................... 46

3
Table of contents
FOR THE ELECTRICIAN ....................................................................................................
12. Electrical connections .................................................................................................................. 48
13. Connecting the function modules ..................................................................................................49
14. Operating with external control ...................................................................................................49
15. Installing covers .......................................................................................................................... 50
FOR THE SERVICE TECHNICIAN........................................................................................ 
16. Commissioning and operating instructions......................................................................................51
17. Service and repair work ................................................................................................................51
TECHNICAL DATA ............................................................................................................
18. Technical data – function module INFF05W/S/K ........................................................................... 52
19. Technical data for calculating the flue gas system acc. to EN 13384-1 .............................................. 52
20. Technical data – General .............................................................................................................. 53
21. Dimensional drawings .................................................................................................................. 54
ELECTRIC CIRCUIT DIAGRAMS.........................................................................................
22. Basic circuitry – BioWIN 2 Touch................................................................................................... 56
22.1 Plan E1......................................................................................................................................................................56
22.2 Plan E2......................................................................................................................................................................57
22.3 Plan E3......................................................................................................................................................................58
22.4 Plan E4 .....................................................................................................................................................................59
23. Connection diagram – BioWIN 2 Touch...........................................................................................60
24. Connection diagram for pellet feed with buried tank mixer ............................................................. 61
25. Connection diagram function module INF F05 W ............................................................................ 62
26. Connection diagram function module INF F05 S ............................................................................. 63

4
Important information
IMPORTANT INFORMATION
This manual contains data with US units. The units in the original manual are European units. If there is a data conflict
between these units, the data with European units is always valid.
The original manual is written in German – this is an English translation. In case of conflicts, the German version is
always valid.
All content in this document is the property of WINDHAGER and is therefore protected by copyright. Reproducing this
content, passing it on to others or using it for other purposes without the written consent of the owner is strictly pro-
hibited.
1. General information
As required by the United States Department of Environmental Protection the following information is given for the:
BioWIN 2 Touch wood pellet fired central heating boilers. Manufactured by Windhager Zentralheizung Technik Gmbh,
Anton Windhager Strasse 20, Seekirchen 5201, Austria
The BioWIN 2 Touch boilers have the following nominal output levels and comply with EPA 2020 requirements:
– BioWIN 152 51.2 kBTU/hr (15 kW)
– BioWIN 212 71.7 kBTU/hr (21kW)
– BioWIN 262 88.4 kBTU/hr (25.9 kW)
– BioWIN 332 110.9 kBTU/hr (32.5 kW)
The BioWIN 2 Touch system efficiency and the nominal output was measured by a test laboratory using the HHV of the
fuel.
– BioWIN 152: 64.7 % (119 gal thermal storage included)
– BioWIN 212: 57.6 % (238 gal thermal storage included)
– BioWIN 262: 70.7 % (238 gal thermal storage included)
– BioWIN 332: 70.6 % (238 gal thermal storage included)
The system efficiency was determined during performance testing using the IDC protocol. Further technical data can
be found in the Installation manual.
Your BioWIN 2 Touch boiler has a manufacturer-set minimum low burn rate that must not be altered. It is against
federal regulations to alter this setting or otherwise operate this wood heater in a manner inconsistent with operating
instructions in this manual.
Your BioWIN 2 Touch boiler is equipped with automatic fuel loading. There are no further loading instructions. Solely
PFI Premium 100% wood pellets shall be used.
Materials such as trash, plastics, gasoline, rubber, naphtha, household garbage, material treated with petroleum pro-
ducts such as particleboard, railroad ties, and pressure treated wood.
Burning these materials may result in release of toxic fumes or render the heater ineffective and cause smoke.
Your BioWIN 2 Touch is equipped with an automatic ignition and starts itself when required by building load. Thus, no
further ignition procedures are to be followed.
There are no user adjustments for the air controls required.
It is important to have BioWIN 2 TouchNA boiler serviced by a trained professional who is aware of the importance to
ensure that:
– there are no inlet air restrictions in or around your boiler’s combustion blower
– the air passages within your boiler are free of debris(ash, creosote, etc.)
– the Flue pipe and chimney are clean and free of debris / restrictions
– combustion chamber door (when closed and secured) and the ash box seal are airtight.
Ash removal is completely automatic. Ashes should be placed in a metal container with a tight-fitting lid. The closed
container of ashes should be placed on a non-combustible floor or on the ground, away from all combustible materials,
pending final disposal. The ashes should be retained in the closed container until all cinders have thoroughly cooled.
A person or persons responsible for the operation of a hydronic heater must comply with all applicable laws or require-
ments, such as State laws or regulations as well as local ordinances.

5
Important information
A person or persons operating a hydronic heater should be aware that they are responsible for operation in such a man-
ner that does not create a public or private nuisance condition.
The manufacturer’s distance and stack height recommendations and the requirements in any applicable laws or other
requirements may not always be adequate to prevent nuisance conditions due to terrain or other factors.
Your BioWIN 2 Touch should be installed with a minimum stack height of 16 feet. Providing correct draft as given in the
Installation manual.
Draft is the force, which moves air from the appliance up through the chimney. The amount of draft depends on the
length of the chimney, local geography nearby obstructions and other factors.
Too much draft may cause excessive temperatures in the appliance and may damage parts in the catalytic combustor.
Inadequate draft may cause backpuffing into the room and ‘plugging’ of the chimney, or the catalyst.
Inadequate draft will cause the appliance to leak smoke into the room through appliance and chimney connector joints.
Your BioWIN 2 Touch is not a catalytic type burner.
You should never use a combustion appliance in your home without an installed smoke and CO detector.
Your local fire department usually has good advice on placement of these detectors and how many your home needs for
complete coverage.
Complete important installation information is found in the installation manual.
Note.
This wood heating appliance needs periodic inspection and repair for proper operation. It is against fe-
deral law to operate this wood heating appliance in a manner inconsistent with operating instructions in
the manual.
1.1 Relevant documents
– Operating manual and installation instructions BioWIN 2 Touch
– Operating and installation instructions for system components
1.2 Safety instructions and other symbols in this documentation
1.2.1 Structure of safety instructions
KEYWORD Type of risk
Here, possible consequences are listed that may result from failure to observe the safety instructions.
„Steps to prevent the risk are listed.
1.2.2 Symbols, type of risk or meaning
Symbol Type of risk or meaning Symbol Type of risk or meaning
Injury Risk of burns
Electrocution Risk of crushing
Material losses
(appliance damage, consequential losses
and environmental pollution)
Appliance disposal
This symbol means that the parts indica-
ted must not be disposed of with domestic
waste.
Information or tips
„
This symbol indicates that you have to do
something. The action you need to take is
described step by step.

6
Important information
1.2.3 Keywords
KEYWORD Meaning
DANGER Ignoring the warnings identified by this symbol can lead to serious injuries or death.
WARNING Ignoring the warnings identified 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.
Information or tips The blocks of text identified by this symbol provide information and tips for operation.
„Read these texts carefully.
2. Safety
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 (110 V AC). Improper installation or repair can pose the danger of life-thre-
atening electric shock. Installation may be performed only by appropriately qualified technicians.
2.1 General safety information
DANGER Injury
Please follow the safety instructions (symbols) on the appliance!
Please refer to the instructions in chapter 2.3 Safety instructions on side 7!
DANGER Injury
The specified safety requirements are to be followed in accordance with nationally applicable regulations,
standards, and guidelines.
DANGER Electrocution
Turning off the on/off button on the InfoWINTouch does not mean the boiler and its accessories are comple-
tely without power.
„Therefore, you must de-energise the boiler (e.g. by unplugging the main power plug) when carrying out
cleaning or repair work.
WARNING Risk of crushing from rotating auger
„If you have to touch these parts, always de-energise the boiler.
WARNING Risk of burns
„Before touching these surfaces, you must switch off the boiler and let it cool.
DANGER Injury
„Also read and observe the safety information in the operating manual.

7
Important information
2.2 Liability exclusion
All work should be performed exclusively by trained personnel. Local safety regulations must be complied with in
all cases; in the event of a conflict and/or contradiction between these regulations and the working instructions in
this document (e.g., impairment), then the local regulations should be adhered to in any event and the
working instruction should not be carried out; WINDHAGER ZENTRALHEIZUNG GMBH, ÖSTERREICH and WINDHAGER
ZENTRALHEIZUNG TECHNIK GmbH, ÖSTERREICH do not accept any liability for any injury to persons or damage to
property caused by incorrectly following the instructions and/or violating the local safety regulations! Subject to
modifications. No liability is accepted for errors in translation.
2.3 Safety instructions
DANGER Risk of fire or explosion.
Do not use chemicals or fluids to start the fire.
CAUTION Health and environmental hazard.
Do not burn garbage, gasoline, naphtha, engine oil, or other inappropriate materials.
WARNING Opening heating chamber door can crush and cut.
When opening door, never insert hands between the door and frame on the hinge side of the heating chamber.
WARNING Opening heating chamber door can crush and cut.
When closing door, never insert hands between the door and frame of the heating chamber. Be aware of other
people, especially children.
WARNING Entanglement hazard.
Do not open cover of auger conveyor when heating. Handle with care when servicing charging screw.
WARNING Ash tray can crush and cut.
Never insert hands between ash tray and frame.
Never insert hands into closing bracket.
Never insert hands between ash tray and closing bracket.
WARNING Cover plate for pellet chamber can crush and cut.
Use caution when opening the cover plate. Only authorized personnel are allowed to open cover plate.
WARNING Closing pellet chamber door can crush and cut.
Never insert hands between door and frame, or between door and closing bracket of the pellet chamber when
closing the door. Never insert hands into the hinge area when opening door.
WARNING Opening pellet chamber door can crush and cut.
Never insert hands between door and frame on the hinge side of the pellet chamber when opening door. Ne-
ver insert hands between door and closing bracket.

8
Important information
WARNING Removing the ash tray can crush and cut.
Never insert hands between frame of boiler/heater and ash tray when removing the ash tray.
WARNING Mounting the ash tray can crush and cut.
Never insert hands between frame of boiler/heater and ash tray when removing the ash tray.
WARNING Displacing the ash tray can crush and cut.
When moving the ash tray, never insert hands between floor of the heating boiler and ash tray.
WARNING Pinch point hazard.
Never insert hands between the cover plate and housing of heating chamber when opening or closing.
DANGER Smoke gas.
Ensure adequate ventilation in the boiler room. Smoke gas may cause poisoning.
WARNING Hot water and hot steam. Injury hazard.
Safety devices (such as the relief valve) will open automatically and release hot water or hot steam. Keep
away from safety devices. Do not operate safety devices manually when system water is hot or when device
is in operation.
DANGER Attention. Risk of fire.
Lack of water can lead to fire in pellet hopper.
Do not operate this device when water level in water container is below minimum!
Do not use fluids other than pure water.
Monitor the water level monthly and refill to minimum level when necessary.
Always keep water container closed with original lid.- Art. no. 007073 - grip plug.
See BioWIN 2 Touch operating manual for monitoring and refill procedures.
DANGER Risk of fire or explosion.
Exposure may result in severe injury or death.
Do not fill with garbage, waste oil, gasoline, other flammable liquids, or any fuel other than those listed on
the rating plate.
Do not use chemicals to ignite fuel.
Do not use chemicals, sprays, or flammable substances to clean combustion room or any other burner com-
ponent.
Do not use boiler/heater cleaners.
Do not manually fill or light burner.
Do not smoke! Do not expose to open flame.
Do not expose to ignition sources.
Do not open combustion chamber door during operation, power failure, or alarms.
WARNING Fall hazard.
Do not sit, stand, or walk on machine. Keep children away.

9
Important information
DANGER Attention. Risk of fire.
Do not vacuum hot ash - may cause fire in vacuum cleaner.
Prior to vacuuming ash or dirt, wait until unit has shut down completely and has cooled for at least 2 hours.
WARNING Machine starts automatically.
Moving parts can crush and cut.
Do not remove guarding.
Do not touch rotating parts.
Keep children away.
Keep pets away.
DANGER Hazardous voltage.
Do not remove cover.
Keep away from electric components.
Disconnect power before servicing or cleaning.
WARNING Burn hazard – hot surface.
Do not touch frame, cover, or inside of heating chamber during heating.
Allow heating chamber to cool completely before cleaning and servicing.
Keep children and pets away from heating chamber.
Do not touch backside, chimney, or any other pipework during operation.
Maximum draft marked on nameplate.
WARNING Injury hazard.
All components/surfaces remain hot for a long period of time after turning off unit!
Before cleaning or touching combustion chamber or any other components, turn off unit completely and
allow to cool for at least 2 hours
Use heat-resistant gloves.
Use tools provided.
WARNING Health hazard.
Combustion particulates may contain harmful substances.
Use a fine-dust face mask during cleaning.
WARNING Rotating parts can crush and dismember.
Keep hands out of feed opening.
Do not remove cover during normal operation.
WARNING Hand crush hazard.
Automatic start-up if safety switch is activated.
Do not push safety switch.
Moving parts behind the combustion chamber door may start automatically, which can lead to loss of fingers
or other serious bodily injury.
Disconnect power before opening the combustion chamber door.

10
Important information
WARNING Risk of health hazard.
Do not connect to an existing boiler/heater system.
WARNING Crush hazard.
Open the cover of the electronic unit until it is secured in the open position. If not secured, it may fall unex-
pectedly.
WARNING Risk of hand injury.
Use caution when opening the cleaning flap, as it can open suddenly.
When opening the cleaning flap, use the tool provided and wear protective gloves.
WARNING Pinch point hazard.
Use caution when closing the cover of the smoke funnel chamber.
WARNING Crush hazard.
Remain alert and aware of surroundings when moving the machine with crane or fork lift.
DANGER Smoke gas.
Mount a warning plate against smoke gas on the boiler room door.
WARNING Health hazard.
In case of an unexpected fire or if flue pipe turns red, disconnect power if the plug, main switch, or main
circuit breaker is safe to reach. Call the fire department (911) and evacuate the building. Do not enter smo-
ke-filled rooms to disconnect power.
WARNING Injury hazard by hot water or steam.
Safety devices (such as relief or drain valve) will open automatically and relieve hot water or steam. Keep
away from safety devices. Do not manually operate safety devices when the system is hot.
WARNING Health hazard from chemical substances.
Some states list chemical substances known to cause cancer, birth defects, death, serious illness, or other
reproductive harm in propositions. This product may contain such substances, either from the fuel, fuel com-
bustion, or in components of the product itself.
WARNING Necessary tasks.
The heat exchanger, flue pipe, and chimney must be cleaned regularly to remove accumulated creosote and
ash. Ensure that the heat exchanger, flue pipe, and chimney are cleaned at the end of each heating season
to minimize corrosion during the summer months. The appliance, flue pipe, and chimney must be in good
condition. These instructions also apply to a draft inducer, if used.

11
Important information
WARNING Pellet feed system: service, maintenance and rules
The pellet feed system operates automatically. All service and maintenance must be completed by trained
specialists only. Do not alter the equipment or accessories in any way.
For use in combination with Windhager BioWIN 2 Touch pellet-fueled central heating boiler/furnace only.
Do not use to transport any material other than wood pellet fuel listed on the boiler nameplate or in the boiler
manuals.
Do not use for vacuum cleaning.
The pellet feed system starts automatically and will make noise. People who are easily startled or have car-
diac problems should keep away.
DANGER Pellet feed unit: Risk of fire or explosion.
Can lead to serious injury/death! Ground suction hoses must be installed as described in the installation
manual at every connection to avoid static sparking/dust ignition. The pellet feed unit is for use with the day
hopper only. The feed unit must be braced, anchored, or strapped to avoid falling/shifting during an earth-
quake. Instructions can be obtained from your local Windhager dealer or wholesaler.
Pellet feed automatic changeover unit: Risk of fire or explosion.
Risk of fire or explosion. can lead to serious injury or death.
Do not use the pellet feed automatic changeover unit inside pellet storage room or where there is a lot of
dust present. Connect delivery hoses to pellet feed automatic changeover unit as described in the installation
manual to avoid static sparking or dust ignition.
WARNING Pellet feed automatic changeover unit: injury hazard by moving
parts and electricity
Can lead to serious injury or death.
Device starts automatically. Device restarts automatically after power failure.
Do not remove cover.
This part should be serviced by trained personnel only.
WARNING Clearances and installation instructions
Minimum clearances from combustible or noncombustible construction:
2 inches left, 12 inches back, 24 inches top (right),
6 inches right side, 22 inches front.
Access to the back side is required to allow the service of parts such as the drain valve, relief valve, and
inspection fittings.
This unit is for dry indoor installation only. Not for installation on combustible flooring. Not for installation
in manufactured homes or mobile homes.
DANGER Risk of serious bodily injury or death.
This boiler/heater is equipped for one type of wood pellet only. Read the nameplate behind top lid for the cor-
rect type of pellet. Do not use this boiler/heater with any fuel other than the one listed on the name plate. Fai-
lure to use the correct fuel may cause problems resulting in death, serious bodily injury or property damage.
DANGER Attention. Risk of fire.
Do not operate with incorrect draft. Check nameplate behind top lid for correct draft.
Do not operate while refilling the bulk hopper.
Do not operate with door or ash removal covering open or when the ash box is removed.
Do not store fuel or other combustible material in the boiler room.
Regularly inspect and clean flues and chimney.
Have a trained professional regularly inspect safety devices, such as the relief and drain valves.
WARNING
For supply connections, only use 10 AWG or larger wires acceptable for at least 176 °F (80 °C) on a GFCI
circuit!

12
Important information
3. Flue
A properly dimensioned flue is required for the optimal and safe function of this device.
The design of the entire flue system must meet local building codes, and all components must meet
UL 2523 / UL 103. All relevant data to size a flue properly is listed under“technical data for flue gas calculations.“
Because of the device‘s low minimum flue gas temperature, a moisture and water resistant flue gas system is required.
The use of a double wall stainless steel system is required.
A brick chimney may be used if it is damp and water resistant (e.g., refractory brick), properly insulated, and fulfills
the requirements of technical calculations. In the case of an existing chimney that is non-damp and water resistant, a
single wall stainless steel pipe that is properly designed and insulated may be used. In either case, ask a local building
inspector or flue expert for the correct design and flue sizing.
For directions on installing and supporting your chimney, follow instructions provided by your flue system‘s
manufacturer.
A pressure relief valve needs to be installed in the flue gas system. Whenever possible, a barometric damper should be
installed according to local building codes. DO NOT install a barometric damper in sleeping or living areas!
DANGER Injury
The use of galvanized flue gas pipes is at your own risk - this may cause condensation and consequently
damage the pipes.
DANGER Injury
Draft regulators which open inwards and outwards can release fumes which can lead to asphyxiation.
The minimum draft required at the flue gas collar is -0.02 in H2O (-0.05 mbar).
The maximum draft allowed at the flue gas collar is -0.08 in H2O (-0.2 mbar).
The minimum flue pipe diameter required is 5.1 inches / 130 mm. The use of a flue pipe diameter greater than 5.9inches
/ 150 mm first requires a calculation from your local building inspector or flue expert.
CAUTION Material losses
Frequently, overhaul of existing systems involves oversized flue cross-sections or flues not designed for
lowtemperature operation. We suggest an evaluation by the local building inspector before installing the
boiler system. In this way appropriate modifications can be made to the flue before system installation (see
technical data for flue calculation values).
3.1 Adjusting the barometric damper
Adjust barometric damper according to the manufacturer‘s instructions. To access the measurement opening, remove the
back lid and plug at the flue gas collar. Measure the draft with an appropriate analyzer. Adjust for the flue draft listed
on the boiler/heater name plate. Replace the plug and close the lid after measuring the draft.
CAUTION Material losses
Do not alter for increased firing for any reason!
READ and FOLLOW installation instructions for proper flue sizing and flue design! All flue systems must meet UL103. All
flue systems must be water resistant (st ainless steel) and insulated (double wall system).
DO NOT INSTALL BAROMETRIC DAMPER OR PRESSURE RELIEF VALVE IN LIVING OR SLEEPING AREA!

13
Important information
4. Boiler room/installation room
Important information for the design of the boiler house, fuel store.
DANGER Injury
The configuration of the entire system must comply with the requirements of regional legislation, local plan-
ning, applicable regulations, standards and guidelines.
– The minimum clearances for connections, cleaning and full service must be complied with – see section 11.5 Mini-
mum clearances for fire protection, cleaning and full service on side 25.
– Sufficient ventilation of the set-up area must be provided. See section 10. Combustion air on side 19.
– The boiler may only be installed in a dry location.
– The boiler may not be installed in rooms that are dusty or humid.
Permissible limit values: Humidity: max. 85 % at room temperature of 77 °F / 25 °C (non-condensing)
Room temperature: 35.6 °F to 104 °F / +2 to +40 °C
– Do not allow pets or other animals to enter the boiler room or installation room. Install appropriate barriers across
openings.
– In the event of floodwater, switch off the boiler in good time and disconnect it from the mains before water enters
the boiling room or installation room. You must remember to replace all components that come into contact with
water before you put the boiler back into operation.
– Sufficient lighting must be provided for service and full service.
5. Fuel storage
The pellets must be stored in a dry location in order to achieve trouble-free operation with optimum combustion at
maximum efficiency. The pellets can be stored in bulk in a storage room, sheet steel tank, fabric tank or buried tank.
The requirements for pellet storage are defined in ÖNORM M7137 for Austria, the VDI 3464 for Germany, or the Pellets
Fuel Institute (PFI) Standard for the USA/Canada.
See the separate planning documents for planning information about pellet storage.
Maximum transport length and height for pellet feed system:
These maximum values require a stable electricity supply (minimum 110 V AC under load!).
max. 82 ft / 25 m distance at max. 5.9 ft / 1.8 m height difference
max. 50 ft / 15 m distance at max. 9.2 ft / 2.8 m height difference
max. 33 ft / 10 m distance at max. 14.8 ft / 4.5 m height difference
 From the furthest probe to the pellet boiler
Height difference: sum of lengths of all rising pipes belonging to the feed hose
CAUTION Material losses
The pellets must be transported carefully in and out of the storage room in order to maintain good pellet
quality.

14
Important information
BioWIN2 Touch (3 probes):
Furthest probe
Changeover unit
Storage room
Suction turbine
Pellet boiler
Boiler room
Fig. 2 Storage room, boiler room – plan view
6. Initial commissioning and operating instructions
AWindhager representative or one of its partners must commission your new Windhager boiler system. Our
representatives will ensure that all systems are thoroughly checked and can provide additional information at the time
of commissioning. Installation and routine maintenance performed by a qualified Windhager representative will ensure
the optimal performance and service life of your boiler system. This will also ensure that this technologically advanced
system provides the benefits of safe, environmentally friendly, and energy-saving operation.
The following preconditions must be met before scheduling the boiler commissioning:
„Boiler installed correctly.
„System fully wired up electrically.
„System flushed, filled and vented – heat load must be available (e.g. functioning heating system connected).
„Sufficient quantity of fuel available.
„The customer must be present during commissioning.
The commissioning cannot be carried out if any of these points are not complete. The customer will be charged
for any unnecessary costs arising as a result of incorrect commissioning.
Commissioning and maintenance by Windhager Customer Service or a customer service partner are part of the
guarantee requirements of the enclosed “guarantee limitations”.
7. Disposal/recycling
Disposing of the packaging
The packaging material (wooden crate, cardboard boxes, inserts, plastic films and plastic bags, etc.) must be disposed
of correctly in line with the local legal provisions and regulations.
Disposing of components or the boiler
To dispose of defective components or the heating system (e.g. boiler or control system) after the product life has expi-
red, please observe the following information:
„Dispose of the items correctly, i.e. separate the parts to be disposed of into material groups.
„Do not simply dispose of electrical or electronic waste with the general waste under any circumstances; instead, use
the public collection points provided for this purpose.
„As a matter of principle, dispose of items in a way that is as sustainable as possible and that is in line with the cur-
rent environmental protection, reprocessing and disposal technology.

15
For the installer
FOR THE INSTALLER
8. Scope of supply, packaging
DANGER Risk of suffocation from plastic films.
Plastic films, bags and so on can become dangerous ‘toys’ in a child's hands. Therefore, never leave packaging
material unattended or allow children to get hold of it.
When delivered, the boiler and integral fuel hopper are covered in a plastic bag and packed inside a stable crate. Clad-
ding and installation parts are in separate boxes. Cleaning devices are packed inside the boiler.
612 mm
812 mm
1 mm
1
6
1
660 mm
767 mm
6 mm82150.6 in
1 2
30.2 in
32.0 in
24.1 in
63.4 in
26.0 in
1015 mm
820 mm
5 mm1
6
163.6 in
3
32.3 in
40.0 in
1115 mm
225 mm
515 mm
670 mm
235 mm
720 mm
4
5
28.3 in
8.9 in
43.9 in
9.3 in
26.4 in
20.3 in
Fig. 3 BioWIN 2 Touch scope of supply
BioWIN 2Touch
Transport weight including crate/packaging
Klassik Premium Exklusiv Exklusiv-S
BioWIN
152
BioWIN
212/
262/332
BioWIN
152
BioWIN
212/
262/332
BioWIN
152T
BioWIN
212/
262/332
BioWIN
152
BioWIN
212/
262/332
1
Boiler incl. transport crate
lb
(kg)
450 (204) 496 (225) 450 (204) 496 (225) 481 (218) 527 (239) 481 (218) 527 (239)
Net boiler weight 410 (186) 456 (207) 410 (186) 456 (207) 441 (200) 487 (221) 441 (200) 487 (221)
Smallest boiler weight (excl.
heating door, cleaning cover, cone/
pin, coating surface cover)
344 (156) 390 (177) 344 (156) 390 (177) 375 (170) 421 (191) 375 (170) 421 (191)
2
Boiler 236 lb / 107 kg pellet hopper
incl. transport crate lb
(kg)
93 (42) 123 (56) 123 (56) 93 (42)
Net boiler 236 lb / 107 kg pellet
hopper 62 (28) 93 (42) 93 (42) 62 (28)
3
Boiler 441 lb / 200 kg pellet hopper
incl. transport crate lb
(kg)
236 (107) – – 236 (107)
Net boiler 441 lb / 200 kg pellet
hopper 179 (81) – – 179 (81)
4 Cladding lb
(kg) 73 (33)
5 Ash box lb
(kg) – 26 (12)
For diverse accessories for boiler and storage room, see price list.

16
For the installer
9. System
9.1 Area of use
These boilers/heaters are designed and approved as heat generators for hot water heating systems with permissible
flow temperatures of up to 194 °F / 90 °C. The max. boiler temperature is limited in the factory to 167 °F / 75°C. In the
service level, the max. boiler temperature can be increased to 185 °F / 85 °C. To do this, a buffer has to be installed,
which is loaded by the BioWIN 2 Touch.
9.2 Standards
The following UL listed components must be completely unobstructed on the boiler/heater:
– Pressure Relief Valve with 30 psi opening pressure Article no.: 003493
– Low Water Cut-Off with Manual Reset for 110–120 V 15 A Article no.: 003495
– Pressure Gauge Article no.: 003494
– Expansion Tank with at least 15% total system water volume capacity Article no.: 003496, 003497, 003498
– Automatic Air Vent Article no.: 003499
READ and FOLLOW installation instructions for proper flue sizing and flue design!
All flue systems must meet UL103. All flue systems must be water resistant (stainless steel) and insulated (double wall
system).
DO NOT INSTALL BAROMETRIC DAMPER OR PRESSURE RELIEF VALVE IN LIVING OR SLEEPING AREA!
9.3 Return temperature
The standard return flow temperature increase allows the BioWIN 2 Touch to operate with a return temperature down
to a minimum of 68 °F / 20 °C. No external return flow temperature increase is required.
Exception: Systems with a buffer, in which the buffer is loaded directly from BioWIN 2 Touch with a return hold-up group.
The minimum reuired return temperatur is 113 °F (45 °C).
9.4 Thermal storage (buffer tank)
Only commercially available vessels designed as thermal storage tanks may be used. Additionally, all thermal storage
pressure vessels greater than 119 gallons must have American Society of Mechanical Engineering certification.
The BioWIN 2 Touch central heater shall be installed with a minimum thermal storage (buffer):
Boiler model Minimum required thermal storage
BioWIN 2 Touch 152 NA ≥ 119 gal
BioWIN 2 Touch 212 NA ≥ 238 gal
BioWIN 2 Touch 262 NA ≥ 238 gal
BioWIN 2 Touch 332 NA ≥ 238 gal
CAUTION Material losses
If using a buffer or accumulator tank, the BioWIN 2 Touch return flow temperature must be maintained – see
hydraulic diagram in the planning documents.

17
For the installer
9.5 Operation by control
This is only possible with the function module INF F05 W (fitted as standard); the control must fulfil the following
demands:
– Minimum boiler temperature and start-up relief:
The consumer pumps (heating circuit and domestic hot water pumps) may only be switched on at a boiler tempera-
ture of more than 122 °F / 50 °C if the burner is on, and will be switched off when the boiler temperature is less than
113 °F / 45 °C.
– Pump over run:
A over run of at least 10 minutes will be observed for all consumer pumps and a minimum heat load must be ensured
during the burnout phase.
– The system specific control settings must be set so that the boiler runs on average for at least 1.5 hours (shorter
operating times cause more contamination of the boiler and greater wear and tear).
9.6 System water
CAUTION Material losses
The chemical composition of the heating water must conform with local legislation and meet the directives,
guidelines and standards.
Applicable for Austria (excerpt from ÖNORM H 5195):
a) According to ÖNORM H 5195, the condition of the heating water must be checked every 2 years by a heating techni-
cian in order to avoid corrosion and sediment accumulation in the heating system.
b) The pipe lines and heating appliances should be thoroughly rinsed before the boiler is connected.
c) To protect the boiler from contamination from the heating system, installation of a dirt trap is required in old or
existing systems with maintenance cocks installed in the return line.
d) If oxygen diffusion or sludge build-up cannot be prevented, the system must be segregated using a heat exchanger.
e) If antifreeze is used, a minimum volume of 25 % antifreeze is required, otherwise corrosion prevention is not gu-
aranteed.
The heating system must only be filled with fresh, untreated drinking water (pH between 8.2 and 10.0). Observe
the information in the table to avoid any problems with the boiler or system. If one or more of the conditions cannot
be met, it is recommended to treat the heating water. In cases of improperly cleaned systems or poor water quality, the
guarantee and warranty are void.
Heating water quality
Acidity 8.2 – 10.0 pH
Electrical conductivity ≤ 800 μS/cm at 25 °C
Chloride ≤ 30 mg/l
Other substances < 1 mg/l
Water hardness according to ÖNORM H5195-1 (2010 edition)
Highest permissible hardness of filling water for heating systems, heat generator with a water content of > 0.3 l/kW:
Specific water volume of the system < 1.55 gal/kBTU (20 l/kW): *
Overall performance of heat output Total alkaline earth °dH °fH
≤ 170.6 kBTU/hr up to 3.0 mmol/l up to 16.8 30
> 170.6 kBTU/hr to ≤ 682.4 kBTU/hr up to 2.0 mmol/l up to 11.2 20
Specific water volume of the system ≥ 1.55 gal/kBTU (20 l/kW) but < 3.87 gal/kBTU (50 l/kW) : *
Overall performance of heat output Total alkaline earth °dH °fH
≤ 170.6 kBTU/hr up to 2.0 mmol/l up to 11.2 20
> 170.6 kBTU/hr to ≤ 682.4 kBTU/hr up to 1.0 mmol/l up to 5.6 10

18
For the installer
Specific water volume of the system ≥ 3.87 gal/kBTU (50 l/kW) : *
Overall performance of heat output Total alkaline earth °dH °fH
≤ 170.6 kBTU/hr up to 1.0 mmol/l up to 5.6 10
> 170.6 kBTU/hr to ≤ 682.4 kBTU/hr up to 0.5 mmol/l up to 2.8 5
* At an annual replenishment of maximum 5% of the system‘s water content; additionally, we comply with ÖNORM H5195 part 1 and VDI 2035 T1.
Important general comments on water quality
The boilers are intended for operation with clean, good quality tap or drinking water. The water should be clear and
free from visible impurities and suspended matter.
Most heating systems are comprised of different materials. Therefore, a water treatment is recommended to prevent or
limit problems (metal corrosion, calcification and sludge formation, microbiological contamination, chemical changes
in unprepared system water).
Reduce the oxygen volume in the heating circuit as much as possible.
Annually refill a maximum of 5 % of the system‘s water capacity.
Important general comments on water quality for new systems
New systems must be fully cleaned from any residue (plastic waste, lubricants, etc.) by means of a universal cleaning
agent. Rinse with a minimum of three times the installation volume of the central heating system. Cleaning with che-
mical products must be done by a professional. Carefully rinse the system until the rinse water is clear and free from
any impurities.
The water must not be softened to less than 0.5°dH, as water any softer harms the system. An inhibitor must be used
in combination with a water softener.
Important general comments on water quality for existing systems
– De-sludge the system.
– Rinse the system.
– Clean the system with a universal cleaning agent to remove waste material (copper, fiber mass, welding paste).
– Carefully rinse the system until the water is clean and free of any impurities. Check the connection tightness of the
combustion air supply and extraction.
The thorough cleaning of the system must be performed by a professional. A sufficient and controlled flow is required to
remove all impurities and residues from the heating circuit. In the case of cleaning with chemical products, the above
points are especially important for avoiding any residues from corrosive products.
In the event of considerable impurities/clogging (deposits of lime), the boiler must be cleaned by a professional with
appropriate tools.
Circulation filter/dirt trap
The installation of a dirt trap is recommended. In accordance with ÖNORM H5195, a filter size of ≤ 25 μm is required.
Water treatment
The compatibility of the product with all system materials must be checked when using a water treatment system.
Observe the manufacturer’s instructions.
The water must be regularly checked, and if necessary, changed.
Practical advice:
The system‘s water quality must be regularly checked by a professional (at least every two years), especially after filling
or refilling the water. Record all treatment measures in a report to document the maintenance work on the boiler and
system.
CAUTION Material losses
If using a buffer, the BioWIN 2 Touch return flow temperature must be increased – see hydraulic diagram in
the planning documents.

19
For the installer
9.7 Water-side resistance (pressure loss)
90
100 1000 10000
100
1000
1
10
mm/WW
l/h
180
292
5
90
BioWIN 2 Touch 152–332
Diagram 1 Water-side resistance – BioWIN 2 Touch 152–332
10. Combustion air
DANGER Injury
The configuration of the entire system must comply with the requirements of regional legislation, applicable
regulations, standards and guidelines.
An adequate supply of combustion air is essential for the appliance’s safe and efficient operation. The combustion air
must be free from pollutants (gases, vapours and dusts).
CAUTION Material losses
Malfunctions or complaints occasioned by inadequate combustion air will not be covered by the warranty.
10.1 Combustion air supply directly from the installation room
If combustion air is drawn directly by the system from the boiler/heater room, the room must be adequately ventilated.
The combustion air should be directed near the boiler.
The area of the free minimum cross-section must be 0.39 in2 / 2.5 cm per kW of the boiler‘s nominal total output1.
The opening to the outdoors for combustion air should be designed as follows:
– the flow of air must not be restricted in any way by the weather (e.g., snow, leaves),
– the free cross-section area remains the same when taking the cover grille, discs etc. into consideration.
The installation must comply with the requirements of the Authority having jurisdiction over the installation.
10.2 External combustion air supply
See the planning documents or "Adapter for external combustion air supply BIO 060", "Shut-off unit BIO 0602" and
"Switch for integral fuel hopper cover BIO 0601" instructions.

20
For the installer
11. Installation sequence
11.1 Parts designations for installation
1
2
3
4
5
6
17
18
19
7
8
9
11
13
14
15
12
16
10
27 28 29 30 31
20
23
26
24 22
21
25
1........... Drain cock
2........... Integral fuel hopper
3........... Auger motor
4 .......... Rear left side cladding
5........... Top cladding
6 .......... Front cladding
7........... Bottom door hinge
8 .......... Top door hinge
9 .......... Side panel
10 ........ Top part of cladding for side panel
11 ......... Cladding door
12 ......... Heat exchanger insulation
13......... InfoWINTOUCH
14......... Operating panel
15......... Cover
16......... Integral fuel hopper cover
17 ......... Bottom cover for integral fuel hopper (only in Klassik/Premium)
18......... Ash box base (only Exklusiv/Exklusiv-S)
19......... Ash box (only Exklusiv/Exklusiv-S)
Integral fuel hopper L 441 lb / 200 kg:
20 ........ Integral fuel hopper L 441 lb / 200 kg
21 ......... Pedestal
22......... Cover
23......... Left side panel
24 ........ Cladding door
25......... Top door mounting
26 ........ Cover
Cleaning and operating implements
27......... Cleaning brush
28 ........ Spatula
29 ........ Allen key and sponge-rubber holder
30 ........ Scraper (only with Klassik, Klassik-L and Premium)
31......... Pellet chute2(accessory for Premium/Exklusiv only)
 located in the pellet boiler ash chamber
Pellet chute for temporary use only or when manually filling the integral fuel hopper, if feed is not complete.
Fig. 4 Parts for installation