KWB Easyfire Wood pellet heating system

Transcription

1 KWB Easyfire Wood pellet heating system Heat simply and cleanly The Biomass Heating System Technology and planning Wood Pellet Heating System KWB Easyfire 8 35 kw Valid as at December 2012 We provide energy for life!

2 2 KWB Headline Easyfire wood pellet heating system Heat simply and cleanly with technology

3 Heat Headline simply 3 Simple operation unlimited comfort Thanks to the efficient combustion, the movable ash container only needs to be emptied simply and effortlessly up to once every two years (depending on the size of the system). The system can be operated easily with the Comfort 3 control with just 2 buttons and a dial all settings can be configured in self-explanatory fashion on the graphic display. approx. 87 cm 0.75 m 2 footprint approx. 87 cm Fits in any boiler room Via the delivery in modules and the minimal footprint of just 0.75 m², the new KWB Easyfire Pellet Heating System fits in any boiler room. The planning, integration and assembly of the pellet heating system is very simple for the heating engineer thanks to the modular system, the lightweight and compact components as well as the lifting and transport aids supplied. Gentle delivery and easy installation thanks to modular construction (delivery in just 7 packages) Works with any heat distribution system The new KWB Easyfire Pellet Heating System is equipped with the first high quality, integrated return flow boost with variable volume flow. This also means that an external return flow boost is not required with buffer mode and the operation of low-temperature heating systems. The key advantage: simple planning and lower installation costs. Energy savings thanks to balanced-flue operation For balanced-flue operation, the combustion air is not extracted from the setup room of the pellet heating system; instead, it is supplied to the pellet heating system directly via an individual combustion air line from outdoors or from an air-flue gas system. The advantage here is that the thermal building envelope is not damaged and there is no cooling off of the setup room. In addition, this model of the pellet heating system fulfills increased insulation requirements and can thus be used simultaneously and safely with room air systems (e. g. controlled living room ventilation system).

4 4 KWB Headline Easyfire wood pellet heating system Broadband lambda probe for precise oxygen measurement; long service life through reference measuring cell and precise probe temperature control 2. Operation and control KWB Comfort 3: Simple operation, modulating capacity adjustment (infinitely adjustable), negative pressure control, speed monitoring of stoker motor, suction air and combustion air fans 3. Integrated return-flow boost with variable volume flow 4. Heat exchangers with automatic cleaning consisting of cleaning springs and high-efficiency turbulators 5. Dust separator with cyclone effect 6. Combustion system: Cast iron and aluminium under-feed burner with stainless steel burner plate and KWB EasyFlex reliable with different fuel qualities 7. Fire protection: Cellular wheel sluice with seven transport chambers, metering screw for controlled pellet feed 8. Automatic ash removal into a dedicated ash container The comfort version offers a movable ash container with an extendible handle

5 Makes heating CLEAN With cleanefficiency Headline technology 5 Simple drive concept saves energy Energy-saving drive motors for pellet and ash transport ensure low power consumption. A large cellular wheel sluice with metering screw permits a safe and efficient pellet feed. Standard variant Optimised variant cold High-efficiency turbulators Whereas the installed special springs clean the heat exchanger, the new high-efficiency turbulators ensure an optimal heat exchange and thus lowest waste gas temperatures. The result is a consistently high efficiency level up to 96 %, both in partial load and nominal load operation. hot Dust separator with cyclone effect Even the combustion concept itself prevents the formation of fine dust in the best possible way. In addition, the cyclone effect of the specially developed dust separator provides much lower dust emissions than with standard pellet heating systems. This achieves low dust values of up to a quarter of the limit value specified by the Blue Angel 2012 Environmental Award. Stress-free combustion The proven and finely-tuned underfeed-firing system provides completely stress-free and quiet processes during combustion (continuous pellet feed from below and thus no dust turbulence in the fuel bed). An above-average size of burner plate area provides a stable fuel bed and gives the pellets sufficient time to fully combust in four clearly delimited combustion zones. Thanks to the automatic burner plate cleaning KWB EasyFlex, the ash is moved smoothly and evenly from the burner plate with no falling ash and thus no dust turbulence. With the help of the new ceramic ignition element with photo cell monitoring, the pellet heating system ignites within the shortest time with the lowest energy consumption and great operational reliability. Emission test nominal load mg/nm 3 based on 13 % O The technologie makes it possible to keep emissions at a threshold where measuring is barely possible, both in partial load and nominal load operation NOx nominal load CO nominal load Dust nominal load Emission threshold value Blauer Engel (Blue Angel), valid starting on Emission values KWB Easyfile 22 kw

6 Safe and efficient pellet feed with low power consumption A large burner plate area ensures a stable fuel bed and stress-free combustion.

7 Generously-dimensioned cellular wheel sluice with metering screw. Highly-efficient turbulators ensure optimal heat exchange and the lowest flue gas temperatures.

8 8 KWB Headline conveyor systems Fully automatic Storage room adjacent to boiler room Fully automatic Storage room further away from the boiler room boiler room boiler room Storage room Storage room Pellet Stirrer Plus with elbow screw Pellet Stirrer Plus with suction conveyor Storage room utilisation p. 10 p. 12 Storage room utilisation KWB Pellet Big Bag and elbow screw KWB Pellet Big Bag with suction conveyor Storage room utilisation p. 14 p. 14 Storage room utilisation Conveyor screw with elbow screw Conveyor screw with suction conveyor Storage room utilisation p. 16 Storage room utilisation p. 18 Sample probes with suction conveyor Storage room utilisation p. 20

9 KWB conveyor Headline systems 9 Fully automatic Storage room outside the building Semi-automatic No storage room boiler room boiler room Storage room KWB Pellet Big Bag with suction conveyor Storage container Storage room utilisation p. 14 p. 23 Suction conveyor with buried tank p. 22 KWB offers varied and flexible possibilities for conveyor systems for nearly every boiler room.

10 10 KWB Headline Comfort control system KWB Comfort 3 control unit KWB Comfort 3 is a modularly designed system that is used to operate and regulate the KWB biomass heating systems. All adjustments can be made using the 2-button control unit together with a dial on the innovative easty to understand graphic display. Parameters for boiler, heating circuit, DHWC, and buffer tank can be easily configured using the logically structured menu system. The control unit adjusts boiler output according to heat demand, fully automatically and infinitely variable from standby to full load. The control concept ensures optimum combustion conditions, lowest emissions and maximum economic efficiency. In addition to regulating the burner, it also provides comprehensive heat management from a single-family house to a district heating network. As a modular, expandable system, the KWB Comfort enables control of up to 34 heating circuits, 17 buffer tanks and 17 DHWCs. It is also possible to link several digital or analogue remote-control devices. Boiler control unit The control unit consists of the following components: 1. Base board: Contains all inputs/outputs for boiler control, incl. sensors and terminal strip for external connections. The master board also includes the activation for one DHWC and one buffer tank with two temperature sensors. 2. Boiler control unit This module is used to operate and regulate the boiler and for purposes of heat management. The boiler control unit can additionally be used as a data display, room thermometer and remote-control unit. Heating circuit expansion module 3. Analogue remote control unit: Easy operation for a heating circuit with room sensor consisting of a dial for adjusting the desired room temperature by ± 5 C and a 4-position slide switch for selecting the heating program: automatic mode, lower mode, frost protection mode or day operation. 4. Digital remote control unit: Enables operation of one or more heating circuits with room sensor as well as configuration and monitoring of heating circuit, DHWC and buffer tank management from the living room. 5. Heating-circuit expansion module: Controls a max. of 2 heating circuits, one DHWC and one buffer tank (with 2 sensors) per module. Operation and monitoring are carried out using the boiler control unit or optionally by digital remote control devices. Analogue remote control unit

11 KWB Comfort control Headline system 11 KWB Comfort SMS Use your own mobile phone to query the actual operating states and actively control your heating system (e. g. holiday program, party operation). In addition to switching the heating system on and off, actual operating states can be queried or adjustments can be made for heating circuits, DHWC, buffer tanks, etc. In addition, alarm messages are sent to the mobile phone. The sender receives acknowledgement of commands that have been executed through an SMS reply. Creation of commands and queries is simplified by the use of SMS templates that can be transmitted by the KWB Comfort 3 to the respective mobile phone. KWB Comfort SMS is available in German, English, Italian, French, Spanish and Slovenian. KWB Comfort Solar Through the KWB Comfort Solar control system, the heating system is controlled in such a manner that free-of-charge solar energy is optimally routed into the buffer tank. In addition to functionality and design, the KWB Comfort Solar control system is primarily characterised by self-explanatory user navigation via 4 entry buttons and a graphic display. The setting menus have help texts or graphics for easy entry. A convenient commissioning wizard is available for the heating engineer. Furthermore, simple queries of the current measured values are possible, as is the monitoring of the system through data recording and evaluation via graphic statistics. Moreover, the control system has the possibility of capturing heat quantity via a simple calculation, or optionally with the aid of measured values. For heat quantity measurement, it is also possible to order Vortex flow meters from KWB for the recording of volume flow as well as flow and return temperature. KWB Comfort Solar

12 12 KWB Headline conveyor systems/installation examples Sample probes with suction conveyor The conveyor system consists of a switchover unit with 2 integrated fire protection collars and 3 sampling probes, which are placed in the storage room and connected to the switchover unit via suction and return hoses. The switchover to pellet removal between the 3 sampling probes takes place automatically. The pellets are extracted from the suction turbine in the storage container via a suction hose. This system is especially well-suited for long storage rooms next to, above or below the boiler room and distinguishes itself through its flexible use, low planning effort and easy installation. Sample probes with suction conveyor Storage room utilisation Ease of planning Ease of installation KWB sampling probes: optimal safety thanks to 3 separate removal points in the storage room Switchover unit: automatic switchover of the sampling probes

13 KWB conveyor systems/installation examples Headline 13 Sample probes with suction conveyor (Storage room adjacent to, above, or below the boiler room possible) 20 P G S M H > <80 <80 M ~20 G K S S U Empa Therm 300 l D EmpaEco 800 l F A Legend P 50 A D F Emergency stop switch: Boiler NOT de-energised, but combustion stopped heat dissipation continues! Wall duct 22 cm, centre axle: Upper floor edge + 15 cm (seal with fire retarding seal) Fire extinguisher P Ventilated filling nozzles (injection & suction nozzles) Place the injection connector in the middle of the room and the suction nozzle 50 cm to the side of the injection connector in the direction of the storage room door. The suction nozzle should always be cut as short as possible with the wall (it must still be possible to mount the earthing clamp!). Both nozzles should be attached 50 cm from side walls and 20 cm from the ceiling. G Hose routing Maximum conveyor lengths/heights (difference between the highest and lowest hose level): - 25 m length with 1.8 m height difference - 15 m length with 2.8 m height difference - <10 m length with 4.5 m height difference with at least 3 m height difference, install step put hoses horizontally for at least 1 m per step All conveyor hose bend radii at least 40 cm H Protective door boards for pressure relief K M Keep access to the chimney free: at least 60 cm Model of smoke pipe and chimney according to Technical data table Install energy-saving damper with explosion door (except for RLU operation, see page 33) Ricochet protection mat C U NOTE Inclined floor If pellet residuals between the sampling probes are not wanted, then inclines can be mounted on the front and foot side of the storage room and wedges placed between the sampling probes. Since in the course of the years pellet dust builds up, with this conveyor system, KWB recommends a cleaning and complete emptying of the storage room every 2 to 3 years. Observe free space (min. 50 x 100 x 100 cm) Provide ventilation of boiler room 400 cm² Prerequisite: stable supply voltage of at least 220 V AC under load. Mount the drives outside of the storage room Heed ceiling load / static loads! Strictly comply with local fire safety regulations and other regulations! Maintain the legally prescribed distances to flammable parts! The pellet heating system KWB Easyfire with suction conveyor (Type EF2 GS) or storage container (Type EF2 V) is only possible as a left-sided model. All dimensions in cm

14 14 KWB Headline conveyor systems/installation examples Pellet Stirrer Plus with elbow screw The Pellet Stirrer Plus consists of the stirrer, the gear unit and a screw that can be custom-shortened on site. The great advantage offered by this conveyor system is maximum capacity utilisation of the storage room volume. This also means that inclined floor construction is not required. Planning and installation efforts are reduced to a minimum for the tradesman. The Pellet Stirrer Plus can be combined with the pellet elbow screw, consisting of ascending screw and screw extensions. This extractor variant is suitable for square, round, as well as rectangular storage rooms that are situated next to the boiler room. For storage rooms that are above the boiler room, the Pellet Stirrer Plus is also available in a drop hose design. Pellet Stirrer Plus with elbow screw Storage room utilisation Ease of planning Ease of installation Stirrer max. 3.0 m Ascending screw with axial deviation B depending on the hopper lowering device max. 242 cm max cm Height-adjustable Height 17 to 25 cm Storage room lowering (mm) B Ascending screw 1 Ascending screw 2 Ascending screw 3 Ascending screw 4 A = 785 mm C = 487 mm A = 910 mm C = 599 mm A = 1,010 mm C = 679 mm A = 1,160 mm C = 808 mm

15 KWB conveyor systems/installation examples Headline 15 Pellet Stirrer Plus with elbow screw (storage room adjacent to or above boiler room possible) 20 M H A F K P 200 D M 210 ~20 Legend A D F Emergency stop switch: Boiler NOT de-energised, but combustion stopped heat dissipation continues! Wall duct 35 x 35 cm: seal after installation, trough is to be acoustically decoupled Fire extinguisher P Ventilated filling nozzles (injection & suction nozzles) Place the injection connector in the middle of the room and the suction nozzle 50 cm to the side of the injection connector in the direction of the storage room door. The suction nozzle should always be cut as short as possible with the wall (it must still be possible to mount the earthing clamp!). Both nozzles should be attached 50 cm from side walls and 20 cm from the ceiling. H K M Protective door boards for pressure relief Keep access to the chimney free: at least 60 cm Model of smoke pipe and chimney according to Technical data table Install energy-saving damper with explosion door (except for RLU operation, see page 33) Ricochet protection mat note Provide ventilation of boiler room 400 cm² Mount the drives outside of the storage room Heed ceiling load / static loads! Must strictly comply with local fire safety regulations and other regulations! Maintain the legally prescribed distances to flammable parts! The pellet heating system KWB Easyfire with suction conveyor (Type EF2 GS) or storage container (Type EF2 V) is only possible as a left-sided model. All dimensions in cm

16 16 KWB Headline conveyor systems/installation examples Pellet Stirrer Plus with suction conveyor The Pellet Stirrer Plus consists of the stirrer, the gear unit and a screw that can be custom-shortened on site. The great advantage offered by this conveyor system is maximum capacity utilisation of the storage room volume. This also means that inclined floor construction is not required. Planning and installation efforts are reduced to a minimum for the tradesman. The Pellet Stirrer Plus in combination with the suction conveyor is particularly well suited for storage rooms that are further removed from the boiler room. Suction lengths of 25 m and height differences of up to 5 m can be realized. Thanks to the sound-technical optimisation of the suction conveyor system as well as generouslydimensioned supply hopper, the system is quiet when operating. Pellet Stirrer Plus with suction conveyor Storage room utilisation Ease of planning Ease of installation Stirrer max. 3.0 m Height-adjustable Height 17 to 25 cm Free space Free space max. 315 cm max. 242 cm All dimensions in cm

17 KWB conveyor systems/installation examples Headline 17 Pellet Stirrer Plus with suction conveyor (Storage room adjacent to, above, or below the boiler room possible) K B B G M H P D A F ~ 20 Legend A B D F G Emergency stop switch: Boiler NOT de-energised, but combustion stopped heat dissipation continues! Fire protection collar 6 cm, bore 7 cm seal after installation Wall duct 35 x 35 cm: seal after installation, trough is to be acoustically decoupled Fire extinguisher Hose routing Maximum length: 25 m Maximum conveyor height without step: 3 m Maximum conveyor height with step: 5 m with at least 3 m height difference, install step put hoses horizontally for at least 1 m per step All conveyor hose bend radii at least 40 cm H Protective door boards for pressure relief K M P note Keep access to the chimney free: at least 60 cm Model of smoke pipe and chimney according to Technical data table Install energy-saving damper with explosion door (except for RLU operation, see page 33) Ricochet protection mat Ventilated filling nozzles (injection & suction nozzles) Place the injection connector in the middle of the room and the suction nozzle 50 cm to the side of the injection connector in the direction of the storage room door. The suction nozzle should always be cut as short as possible with the wall (it must still be possible to mount the earthing clamp!). Both nozzles should be attached 50 cm from side walls and 20 cm from the ceiling. Provide ventilation of boiler room 400 cm² Mount the drives outside of the storage room Heed ceiling load / static loads! Must strictly comply with local fire safety regulations and other regulations! Maintain the legally prescribed distances to flammable parts! The pellet heating system KWB Easyfire with suction conveyor (Type EF2 GS) or storage container (Type EF2 V) is only possible as a left-sided model. All dimensions in cm

18 18 KWB Headline conveyor systems/installation examples KWB Pellet Big Bag with elbow screw or suction conveyor The fuel is extracted from the KWB Pellet Big Bag and transported to the heating system with the Pellet Stirrer Plus in combination with the elbow screw (USP S) or suction conveyor (type USP GS). The KWB Pellet Big Bag scores points in particular because of its optimal space utilisation. Standard sizes of 2.2 to 10.5 tons fill content are available for selection; they are made of dust-proof, anti-static fabric that is supported by a galvanised metal frame. In order to maintain a specific minimum distance to the heating system, the KWB Pellet Big Bag can be set up in the boiler room (depending on the local fire-safety regulations), in the storage room, or it can be set up outdoors, if protected against weather. KWB Pellet Big Bag with suction conveyor Storage room utilisation Ease of planning Ease of installation KWB Pellet Big Bag and elbow screw Storage room utilisation Ease of planning Ease of installation Pivot range on all sides 46 Filling connection: STORZ DN 100 No sharp objects above the fabric tank! KWB Easyfire Seal the 35x35 passage so that it is acoustically de-coupled Pivot range on all sides 46 Entry, installation and maintenance FH (fill height) Room height = FH + 20 cm Pellet Stirrer Plus Access to the conveyor system / wall duct >30 Entry, installation and maintenance Length x width A: [m] 1.5 x 1.5 m 2.0 x 2.0 m 2.5 x 2.5 m 3.0 x 3.0 m Fill quantity* (max.): Injection connector below [t] < 2.2 t < 3.9 t < 6.5 t < 9.3 Fill quantity* (max.): Injection connector above [t] < 2.3 t < 4.1 t < 6.9 t < 10.5 t Fill height FH: [cm] 162 or 177 or 192 Room height (min.) RH: [cm] FH + > 20 cm Fill openings Quantity Pc. 1 pc. 1 pc. 2 pc. 2 pc. Fill distance FD: [cm] 100 cm 140 cm * The capacity depends on: Filling technique, pellet characteristics, available space, container size, and height of the injection connector! ** Depending on the locally applicable fire safety regulations, the KWB Pellet Big Bag can be set up directly in the boiler room if a specified minimum distance to the boiler is maintained. If appropriately protected against weather influences, the KWB Pellet Big Bag can be set up outdoors. Local fire safety regulations must be strictly complied with. The KWB Pellet Big Bag does not require any extraction the air escapes through the fabric and via a window or vent (at least 400 cm 2 ) to the outside. Structural characteristics of the place of installation: dry, horizontal, smooth, clean, able to carry maximum load at least kg/m 2 )

19 KWB conveyor systems/installation examples Headline 19 KWB Pellet Big Bag with elbow screw or suction conveyor (Storage room adjacent to, above, or below the boiler room possible) B Die Biomasseheizung 20 Z Die Biomasseheizung Die Biomasseheizung K 5 5 F A Z K F A KWB Pellet Big Bag 2020 Empa Compact K KWB Pellet Big Bag D B F A P KWB Pellet Big Bag Empa Compact 650 P P 335 P 225 Legend A B Emergency stop switch: Boiler NOT de-energised, but combustion stopped heat dissipation continues! Fire protection collar 6 cm, bore 7 cm seal after installation K Keep access to the chimney free: at least 60 cm Model of smoke pipe and chimney according to Technical data table Install energy-saving damper with explosion door (except for RLU operation, see page 33) D F Wall duct 35 x 35 cm: seal after installation, trough is to be acoustically decoupled Fire extinguisher P Z Pellet injection connector: 1 or 2 injection connectors (depending on size of the KWB Pellet Big Bag) suction is not required Gap G Hose routing Maximum length: 25 m Maximum conveyor height without step: 3 m Maximum conveyor height with step: 5 m with at least 3 m height difference, install step put hoses horizontally for at least 1 m per step All conveyor hose bend radii at least 40 cm note Provide ventilation of boiler room 400 cm² Mount the drives outside of the storage room Heed ceiling load / static loads! Must strictly comply with local fire safety regulations and other regulations! Maintain the legally prescribed distances to flammable parts! The pellet heating system KWB Easyfire with suction conveyor (Type EF2 GS) or storage container (Type EF2 V) is only possible as a left-sided model. All dimensions in cm

20 20 KWB Headline conveyor systems/installation examples Conveyor screw with elbow screw The conveyor screw in combination with an elbow screw is the ideal solution for a long storage room arranged next to the boiler room. The conveyor screw is available in various lengths and can be combined with an ascending screw and conveyor screw extensions if necessary. For storage rooms that are above the boiler room, the conveyor screw is also available in a drop hose design. The extremely quiet conveyor system is maintenancefree, absolutely reliable, and requires minimum power. Conveyor screw with elbow screw Storage room utilisation Ease of planning Ease of installation C A MBL MBDK0002 Conveyor screw Conveyor screw, L = 1,300 mm, room depth at least 1,550 mm Conveyor screw, L = 1,800 mm, room depth at least 2,050 mm Conveyor screw, L = 2,300 mm, room depth at least 2,550 mm Conveyor screw, L = 2,600 mm, room depth at least 2,850 mm Conveyor screw, L = 2,800 mm, room depth at least 3,050 mm Conveyor screw, L = 3,100 mm, room depth at least 3,350 mm Conveyor screw, L = 3,600 mm, room depth at least 3,850 mm Conveyor screw, L = 4,600 mm, room depth at least 4,850 mm Conveyor screw, L = 4,900 mm, room depth at least 5,150 mm Conveyor screw, L = 5,400 mm, room depth at least 5,650 mm Conveyor trough extension Conveyor screw extension L1 = 400 mm Conveyor screw extension L1 = 800 mm Conveyor screw extension L1 = 1,200 mm Conveyor screw extension L1 = 1,600 mm Conveyor screw extension L1 = 2,000 mm Conveyor screw extension L1 = 2,400 mm 1 Ascending screw with axial deviation B depending on the hopper lowering device B B 1 Storage room lowering (mm) Ascending screw 1 A = 785 mm C = 487 mm B Ascending screw 2 Ascending screw 3 A = 910 mm C = 599 mm A = 1,010 mm C = 679 mm Ascending screw 4 A = 1,160 mm C = 808 mm All dimensions in cm 1: Middle of drop hose

21 KWB conveyor systems/installation examples Headline 21 Conveyor screw with elbow screw (Storage room adjacent to boiler room) Conveyor screw with drop hose model (Storage room above boiler room) M H Ø 99 D M L D S F A Empa Compact 800l ,5 K M S S P 50 B ~20 K Legend A B D F Emergency stop switch: Boiler NOT de-energised, but combustion stopped heat dissipation continues! Fire safety sleeve drop hose 7.5 cm Wall duct 35 x 35 cm: seal after installation, trough is to be acoustically decoupled Fire extinguisher H Protective door boards for pressure relief K L M Keep access to the chimney free: at least 60 cm Model of smoke pipe and chimney according to Technical data table Install energy-saving damper with explosion door (except for RLU operation, see page 33) Ceiling duct 10 cm: seal after installation, and decouple acoustically Ricochet protection mat F A D S Ventilated filling nozzles (injection & suction nozzles) Place the injection connector in the middle of the room and the suction nozzle 50 cm to the side of the P injection connector in the direction of the storage room door. The suction nozzle should always be cut as short as possible with the wall (it must still be possible to mount the earthing clamp!). Both nozzles should be attached 50 cm from side 180 walls and 20 cm from the ~20 ceiling. S Inclined floor Note Provide ventilation of boiler room 400 cm² Mount the drives outside of the storage room Heed ceiling load / static loads! Must strictly comply with local fire safety regulations and other regulations! Maintain the legally prescribed distances to flammable parts! The pellet heating system KWB Easyfire with suction conveyor (Type EF2 GS) or storage container (Type EF2 V) is only possible as a left-sided model. M S P 50 All dimensions in cm

22 22 KWB Headline conveyor systems/installation examples Conveyor screw with suction conveyor The suction conveyor system consists of suction turbine, storage tank, suction and return air hose and the modular, expandable conveyor screw. It is particularly well suited for storage rooms that are further removed from the boiler room, as well as for storage rooms adjacent to, above, or below the boiler room. With this variant pellets are extracted from the storage room and transported by suction pressure from the suction turbine into the storage container via a suction hose. Suction lengths of 25 m and height differences of up to 5 m can be realized. The system is absolutely reliable and very quiet when operating due to sound-technical measures. Conveyor screw with suction conveyor Storage room utilisation Ease of planning Ease of installation Free space Free space See page 16 for length and room depth dimensions All dimensions in cm

23 KWB conveyor systems/installation examples Headline 23 Conveyor screw with suction conveyor (Storage room adjacent to, above, or below the boiler room possible) ~20 20 M H P S T B D K B ~20 20 M H P G S T Legend B D G Fire protection collar 6 cm, bore 7 cm seal after installation Wall duct 35 x 35 cm: seal after installation, trough is to be acoustically decoupled Hose routing Maximum length: 25 m Maximum conveyor height without step: 3 m Maximum conveyor height with step: 5 m with at least 3 m height difference, install step put hoses horizontally for at least 1 m per step All conveyor hose bend radii at least 40 cm H Protective door boards for pressure relief Keep access to the chimney free: at least 60 cm K Model of smoke pipe and chimney according to Technical data table Install energy-saving damper with explosion door (except for RLU operation, see page 33) M Ricochet protection mat P S T Note Ventilated filling nozzles (injection & suction nozzles) Place the injection connector in the middle of the room and the suction nozzle 50 cm to the side of the injection connector in the direction of the storage room door. The suction nozzle should always be cut as short as possible with the wall (it must still be possible to mount the earthing clamp!). Both nozzles should be attached 50 cm from side walls and 20 cm from the ceiling. Inclined floor conveyor screw Provide ventilation of boiler room 400 cm² Mount the drives outside of the storage room Heed ceiling load / static loads! Must strictly comply with local fire safety regulations and other regulations! Maintain the legally prescribed distances to flammable parts! The pellet heating system KWB Easyfire with suction conveyor (Type EF2 GS) or storage container (Type EF2 V) is only possible as a left-sided model. All dimensions in cm

24 24 KWB Headline conveyor systems/installation examples Suction conveyor for buried tank If no space at all is available for a storage room inside a building, it is possible to install a buried tank, which is buried in the garden, and from which the pellets are transported to the KWB Easyfire via a suction system. The buried tank itself, as well as extraction from the buried tank, is not included in the KWB product line. KWB recommends the Geotank system from Geoplast Kunststofftechnik GmbH, A-2604 Theresienfeld, Bahnstr. 45, B R E Suction conveyor with buried tank Storage room utilisation Ease of planning Ease of installation Symbol photo Legend B E R Fire protection collar 6 cm, bore 7 cm seal after installation Buried tank A protective pipe ( 150 or 200 mm) for the underground installation of the suction hoses must be provided and laid by the customer. The protective pipe and the wall opening are to be sealed tight to the outside. Note Provide ventilation of boiler room 400 cm² Mount the drives outside of the storage room Heed ceiling load / static loads! Strictly comply with local fire safety regulations and other regulations! Maintain the legally prescribed distances to flammable parts! The pellet heating system KWB Easyfire with suction conveyor (Type EF2 GS) or storage container (Type EF2 V) is only possible as a left-sided model.

25 KWB conveyor systems/installation examples Headline 25 Storage container As entry model, or for customers, who, in spite of insufficient space for a storage room, do not want do without the convenience of a KWB pellet heating system, there is an easy-to-fill storage container variant with container capacity of approximately 107 litres. With this system, it is always possible to change to automatic filling (e. g. suction conveyor) without major effort. Ease of planning Storage container K F A Legend A F K F A Emergency stop switch: Boiler NOT de-energised, but combustion stopped heat dissipation continues! Fire extinguisher Keep access to the chimney free: at least 60 cm Model of smoke pipe and chimney according to Technical data table K 200 Install energy-saving damper with explosion door (except for RLU operation, see page 33) Note Provide ventilation of boiler room 400 cm² Heed ceiling load / static loads! Strictly comply with local fire safety regulations and other regulations! Maintain the legally prescribed distances to flammable parts! The pellet heating system KWB Easyfire with suction conveyor (Type EF2 GS) or storage container (Type EF2 V) is only possible as a left-sided model. All dimensions in cm 220

26 26 Power Headline consumption Simple and optimised drive concept saves energy Decades of expertise, enthusiastic commitment to research and development, as well as economical drive motors for pellet and ash transport make it possible. The power consumption of the new KWB Easyfire pellet heating system has been reduced to a minimum. Average annual power consumption in a single-family household with 3 people Wood Pellet Heating System KWB Easyfire 15 kw Television Washing machine Dishwasher Dryer Refrigerator Lighting Freezer Electric hob 181 kwh 190 kwh 200 kwh kwh kwh 330 kwh 330 kwh kwh 445 kwh Source: Annual energy consumption Stiftung Warentest September 2007; The calculation is based on an average electricity price of 19 cents/kwh. *EFH - Single family home Heating pump kwh kwh 100 kwh 200 kwh 300 kwh 400 kwh 500 kwh 600 kwh 700 kwh 800 kwh 900 kwh Kilowatt Kilowattstunden hours (kwh) (kwh) Electrical Electrical Electrical power requirement for Power costs ment for Power costs ment for Power costs power require- power require- KWB Easyfire Heat flow KWB Easyfire Heat flow KWB Easyfire Heat flow pellet heating [kw] volume pellet heating [kw] volume pellet heating [kw] volume the nominal [ /a] the nominal [ /a] the nominal [ /a] system [kwh/a]** system [kwh/a]** system [kwh/a]** Vthermal output Sthermal output thermal output [%] [%] [%] Type Type EF Type EF EF2 GS Type Type EF Type EF GS EF2 GS Type Type EF Type EF EF2 Type Type EF Type EF EF2 Type Type EF Type EF EF2 Type Type EF Type EF EF2 Type Type EF Type EF EF2 GS The calculation is based on an average electricity price of 19 cents/kwh. ** Assumption 1,320 full-load hours/year, winter operation (7 months) Heating load of the building [kw] Annual consumption [kg/a] Fuel consumption and storage room size pellets Storage room volume annual requirements: modest space utilisation classic storage room with inclined floor ** [m³] [m³] Storage space annual requirements*: modest space utilisation classic storage room with inclined floor ** [m²] Storage room volume annual requirements: maximum storage room utilisation since without inclined floor; e. g. Stirrer Plus [m³] Storage space annual requirements*: maximum storage space requirements since without inclined floor; e. g. Stirrer Plus [m²] 8 3, , , , , , , Factor annual consumption: approx. 380 kg per kw heating load (with optimal model of the heating system and good pellet quality); factor storage room size for annual requirement with inclined floor: 0.9 m³ per kw heating load; factor storage room size for annual requirement without inclined floor: 0.75 m³ per kw heating load; assumption: 1,500 full-load hours, 650 kg/m³ bulk density pellets; *room height 2.5 m; calculation with average losses ** Angle approx. 35

27 6-year comfort guarantee Headline 27 6-year guarantee with the KWB comfort guarantee pass* Convenience and safety are the highest priority for KWB's customers. With the KWB comfort guarantee pass, we offer you a warranty extension to 6 years as well as optimum security, which extends far beyond the legally-prescribed warranty and other normal market warranties. With the comfort guarantee pass, spare parts and wearing parts are also included. What is included with the KWB comfort guarantee pass? 6-year warranty extension 6-year warranty on all spare parts 6 year warranty on all control components 6 year warranty on all wearing parts 6 years no additional service costs for the exchange of spare or wearing parts during maintenance. Thanks to regular maintenance of your KWB biomass heating system, you have many advantages: Reduction of heating costs thanks to optimal emission values and evenly-high efficiency. Cost savings thanks to a high level of operational reliability and maximum service life. On-going optimisation of the heating system thanks to new technical findings. * The KWB comfort guarantee pass is valid for Austria, Germany, France, Italy and Slovenia.

28 Headline KWB Easyfire installation dimensions 28 KWB Easyfire for conveyor screw systems Typ EF2 S 25 / EF2 S 30 / EF2 S 35 Typ EF2 S 15 / EF2 S >167 > > >70 > >10 >195 >70 >230 >70 59 >167 > >139 Typ EF2 S 8 / EF2 S Easyfire 8-12 kw kw Easyfire Typ EF2 GS 25 / EF2 GS 30 / EF2 GS 35 KWB Easyfire with suction conveyor system Typ EF2 GS 15 / EF2 GS > Easyfire 8-12 kw 93 > > > New scale drawing >10 >230 >10 >195 > > kw Easyfire KWB Easyfire with storage container 93 Typ EF2 V 25 / EF2 V 30 / EF2 V 35 Typ EF2 V 15 / EF2 V Typ EF2 V 8 / EF2 V > Easyfire 8-12 kw 93 >167 > >10 >230 > > > > > > > 87 Typ EF2 GS 8 / EF2 GS Easyfire kw 93 KWB Easyfire type EF2 S, GS and V >10 93 >156 >10 >167 > Easyfire kw > > >167 > >156 > Typ EF2 V 87 Typ EF2 GS >139 Typ EF2 S Easyfire kw 93 Easyfire 8-12 kw

29 Headline 29 KWB Easyfire fitting dimensions Connection dimensions KWB Easyfire 8 12 kw 44 A: 1 B: 1 6 D: Ø 13 KWB Easyfire kw 44 A: 1 B: 1 6 D: Ø 13 KWB Easyfire kw 44 A: 5/4 B: 5/4 10 D: Ø RLU RLU RLU C: 1/2 15 C: 1/2 15 C: 1/2 15 A: Forward flow (internal thread) B: Return flow (internal thread) C: Emptying (internal thread) D: Smoke pipe RLU: Connection of combustion air line with room air-dependent operation All dimensions in cm Pellet injection connector installation variants Standard variant If there is a duct through other rooms MBL MBEZ0001 3/4 3 3 MBL MBEZ0001 2/4 1 2 ø100 PE ø150 LR 200 KWB # LS: PE LR MBL MBEZ0001 4/4 3 ø100 ø KWB # NR PE 5 ø100 ø150 Variant for light shaft 90 Variant for light shaft LR KWB # LS: 600 MBL MBEZ0001 4/4 3 KWB # LS: PE ø100 ø150 LR 2 1 PE ø150 LR Legend KWB # Tension ring: connect conductive! LS: 600 Hose coupling system Storz A NW 110 with blind coupling. 2 In the boiler room or garage 2 the coupling must be executed with removable F90 cover! 3 Masonry PE 4 Steel pipe 1 5 Earth clip: Remove paint and ensure conductive connection! 6 Fireproof sheathing EL 90 e. g.: 50 mm rock wool + 15 mm fire safety plate 4 5 ø150 3 LR 7 Pipe bend 45 8 Pipe bend 90 PE Potential Earth LS Light shaft LR Fuel storage room NR Adjacent room Volume flow [m 3 /h] Boiler power [kw] Spread ΔT across the boiler [K]

30 30 Hydraulic Headline system diagrams Implementation recommendation: KWB Easyfire with KWB EmpaCompact stratified storage tank Solar KWB Easyfire 2 Two-way valve with servo motor* 3 Charging pump buffer tank 4 External temperature sensor 5 Remote control digital/analogue 6 KWB EmpaCompact stratification storage tank 7 DHWC temperature sensor 8 Buffer tank temperature sensor 1 9 Buffer tank temperature sensor 2 10 Fresh water module 11 Heating circuit 1 12 Forward flow temperature sensor HC1 13 Pump HC1 14 Mixer HC1 15 Heating circuit 2 Implementation recommendation: KWB Easyfire with KWB EmpaTherm Solar DHWC 5 16 Forward flow temperature sensor HC2 17 Pump HC2 18 Mixer HC2 19 KWB Comfort Solar 20 Buffer tank temperature sensor solar 1 21 Buffer tank temperature sensor solar 2 22 Three-way switchover valve 23 Pump solar circuit Collector temperature sensor * Included in the KWB Easyfire scope of delivery HC=Heating Circuit 19 Depiction of symbols: no liability is assumed for correctness Solar KWB Easyfire 2 Two-way valve with servo motor* 3 External temperature sensor 4 Remote control digital/analogue 5 Heating circuit 1 6 Forward flow temperature sensor HC1 7 Pump HC1 8 Mixer HC1 9 Heating circuit 2 10 Forward flow temperature sensor HC2 11 Pump HC2 12 Mixer HC2 13 DHWC pump 14 KWB EmpaTherm Solar DHWC 15 DHWC temperature sensor 16 KWB Comfort Solar 17 DHWC temperature sensor, solar 18 Pump solar circuit 19 Collector temperature sensor * Included in the KWB Easyfire scope of delivery

31 Technical Headline data 31 EF2 S / EF2 GS / EF2 V Rated power kw 8,0 12,0 15,0 22,0 25,0 30,0 34,9 Partial load kw 2,4 3,5 4,4 6,4 7,3 8,7 10,1 Boiler efficiency at rated power % 92,4 94,0 94,3 95,0 95,2 95,4 95,7 Boiler efficiency at partial load % 91,4 89,4 90,0 91,5 92,4 93,8 95,3 Fuel thermal output at rated load kw 9,1 12,8 15,9 23,2 26,3 31,4 36,5 Fuel thermal output at partial load kw 2,6 4,0 5,0 7,2 8,1 9,6 11 Boiler class according to EN Water side Water content l Water connection, forward/return flow (internal thread) inch mm 1 25,4 1 25,4 1 25,4 1 25,4 1 25,4 1 25,4 1 25,4 Water connection, forward/return flow (internal thread) DN Water connection for filling and/or emptying (internal thread) inch mm 1/2 12,7 Thermal safety valve: no Water-side resistance at 10 K mbar 5, ,0 55,9 39,1 62,2 66,2 Water-side resistance at 20 K mbar 1,7 3,5 9,5 15,4 10,8 17,1 18,1 Boiler-entry temperature (for installation of the KWB-supplied two-way valve with servomotor) C Boiler-entry temperature (for installation of an external return-flow boost device) C Maximum temperature of forward flow C 80 Maximum operating pressure bar 3,5 Exhaust-gas side (for chimney calculation) Combustion chamber temperature C Combustion chamber pressure mbar -0,20 Required draft at rated power/partial load mbar 0,05 / 0,03 Suction available Exhaust-gas temperature at rated power C 120 Exhaust-gas temp. Partial load C 90 Exhaust-gas mass flow at rated power kg/s 0,006 0,009 0,011 0,016 0,018 0,022 0,026 Exhaust-gas mass flow at partial load kg/s 0,002 0,003 0,004 0,005 0,006 0,007 0,008 Exhaust-gas volume at rated power Nm³/h 16,5 24,9 31,1 45,2 51,3 61,4 71,2 Exhaust-gas volume at partial load Nm³/h 5,3 7,9 9,8 14,1 15,9 18,7 21,5 Exhaust-gas connection height boiler side mm Exhaust-gas pipe diameter mm Incline of the smoke-pipe 3 Chimney diameter (approx. values) mm Chimney design: Moisture-resistant Fuel: Pellets of pure wood in accordance with EN Calorific value MJ/kg 16,5 Density kg/m³ 600 Water content % by weight 10 Ash content % by weight 0,7 Length mm 3,15 40 Diameter mm 6±1 Dust proportion before loading % by weight 1 Raw material: Pure wood, bark proportion <15 % Ash Ash container volume l 28 Ash container filled kg 27 Ash removal system Electrical system Connection: CEE 5-pole 230 V AC, 50 Hz / 13 A Connected power EF2 V W Connected power EF2 S W Connected power EF2 GS W Connected power EF2 GS with sample probes W Storage container type EF2 V Contents storage container for type EF2 V l 107 Suction conveyor type EF2 GS Max. suction length m 25 Max. suction head m 5 Contents storage container for type EF2 GS l Weights Boiler weight EF2 V kg Boiler weight EF2 S kg Boiler weight EF2 GS kg

32 32 Technical Headline data EF2 S / EF2 GS / EF2 V Emissions according to test report Test report no. BLT-014/12 BLT-019/10 *** BLT-020/10 *** *** BLT-021/10 O 2 content rated power Vol.-% 7,7 9,2 8,6 7,3 7,0 6,6 6,1 O 2 content partial load Vol.-% 12,4 9,7 9,9 10,3 10,4 10,7 10,9 CO 2 content rated power Vol.-% 11,2 11,4 11,9 13,2 13,4 13,9 14,4 CO 2 content partial load Vol.-% 8,8 10,9 10,7 10,3 10,2 9,9 9,7 Reference 10 % O 2 dry (EN 303-5) CO at rated power mg/nm³ 30,0 33,0 27,6 15,0 13,8 11,9 10,0 CO at partial load mg/nm³ 102,0 20,0 21,5 25,0 25,7 26,8 28,0 NOx at rated power mg/nm³ 124,0 135,0 137,7 144,0 147,5 153,2 159,0 NOx at partial load mg/nm³ 95,0 131,0 131,0 131,0 133,3 137,2 141,0 OGC at rated power mg/nm³ <1 <1 <1 <1 <1 <1 <1 OGC at partial load mg/nm³ <1 <1 <1 <1 <1 <1 <1 Dust at rated power mg/nm³ 19,0 21,0 16,8 7,0 8,4 10,7 13,0 Dust at partial load mg/nm³ 13,0 9,0 11,7 18,0 15,9 12,5 9,0 Reference 11 % O 2 dry CO at rated power mg/nm³ 27,3 30,0 25,1 13,6 12,6 10,8 9,1 CO at partial load mg/nm³ 92,7 18,2 19,5 22,7 23,4 24,4 25,5 NOx at rated power mg/nm³ 112,7 122,7 125,2 130,9 134,1 139,3 144,5 NOx at partial load mg/nm³ 86,4 119,1 119,1 119,1 121,2 124,7 128,2 OGC at rated power mg/nm³ <1 <1 <1 <1 <1 <1 <1 OGC at partial load mg/nm³ <1 <1 <1 <1 <1 <1 <1 Dust at rated power mg/nm³ 17,3 19,1 15,3 6,4 7,6 9,7 11,8 Dust at partial load mg/nm³ 11,8 8,2 10,6 16,4 14,5 11,3 8,2 Reference 13 % O 2 dry (FJ-BLT) CO at rated power mg/nm³ 22,0 24,0 20,1 11,0 10,1 8,5 7,0 CO at partial load mg/nm³ 74,0 15,0 15,9 18,0 18,5 19,2 20,0 NOx at rated power mg/nm³ 90,0 98,0 100,1 105,0 107,3 111,2 115,0 NOx at partial load mg/nm³ 69,0 96,0 95,7 95,0 96,8 99,9 103,0 OGC at rated power mg/nm³ <1 <1 <1 <1 <1 <1 <1 OGC at partial load mg/nm³ <1 <1 <1 <1 <1 <1 <1 Dust at rated power mg/nm³ 14,0 15,0 12,0 5,0 6,2 8,1 10,0 Dust at partial load mg/nm³ 10,0 7,0 8,8 13,0 11,4 8,7 6,0 In accordance with 15a-BVG Austria CO at rated power mg/mj 14,0 15,0 12,6 7,0 6,3 5,2 4,0 CO at partial load mg/mj 48,0 9,0 9,9 12,0 12,2 12,6 13,0 NOx at rated power mg/mj 58,0 63,0 64,2 67,0 68,4 70,7 73,0 NOx at partial load mg/mj 44,0 61,0 61,0 61,0 61,9 63,5 65,0 OGC at rated power mg/mj <1 <1 <1 <1 <1 <1 <1 OGC at partial load mg/mj <1 <1 <1 <1 <1 <1 <1 Dust at rated power mg/mj 9,0 10,0 7,9 3,0 3,7 4,8 6,0 Dust at partial load mg/mj 6,0 4,0 5,2 8,0 7,1 5,5 4,0 *** Drawing inspection, values for intermediate sizes interpolated FJ-BLT Franciso Josephinum Wieselburg Biomass Logistic Technology mg/nm³ Milligram per standard cubic meter (1 Nm³ under hectopascal at 0 C) Bus system conditions QQ Bus cable: CAT.5e, S/FTP; 4 2 AWG24; max. length: 850 m; buried installation: CAT.5e, mm² QQ QQ Laid in a separate conduit (not together with 230 / 400 VAC). Network stations in one line (no branches, no ring) QQ For each heating circuit, an analogue room control unit (ARCU), no bus station can be used independent of the bus stations. Wiring is the same as for a room sensor. Note general constructional conditions QQ QQ If the remote control in the living room is used, it is necessary to install an empty base with bus connector CAT.5e (not possible in combination with the KWBComfort SMS). Max. 2 digital remote control units downstream from a heating circuit expansion module (HCEM) or boiler base board are supplied with power. Each heating circuit module must be supplied with 230 V 50 Hz line voltage for the heating control unit and the connected digital remote control devices (DRCD), pumps, and mixer servomotors. As a KWB system user, you must comply with the locally applicable legal submission, construction and implementation regulations! You can obtain these regulations, for example, from the architect or competent authorities. Adherence to and verification of the local statutory regulations is a condition for our warranties and for insurance coverage. KWB does not accept any liability, nor does it offer any warranties for any type of constructional measures. Proper execution of constructional measures is the sole responsibility of the system owner. As a biomass heating system user, you may be entitled to receive specific regional subsidies. Inquire promptly about time limits and