Centrometal BioTec Plus 25 Technical Instructions
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Centrometal BioTec Plus 25 Technical Instructions

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Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: +385 40 372 600, fax: +385 40 372 611
ENG
for installation, use and maintenance
of hot water boiler and installation
additional equipment
THE FIRST START-UP MUST BE DONE BY AUTHORIZED PERSON,
OTHERWISE PRODUCT WARRANTY IS NOT VALID.
TU-BTP-05_1-2022-v1.10c-ENG
HEATING TECHNIQUE
TECHNICAL INSTRUCTIONS
BioTec Plus

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  • Page 1 HEATING TECHNIQUE Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: +385 40 372 600, fax: +385 40 372 611 TECHNICAL INSTRUCTIONS for installation, use and maintenance of hot water boiler and installation additional equipment THE FIRST START-UP MUST BE DONE BY AUTHORIZED PERSON, OTHERWISE PRODUCT WARRANTY IS NOT VALID.
  • Page 2 Important These instructions are an integral part of this product. All rights reserved. Reproduction of content of this document and transfer to third parties is not allowed without written approval from manufacturer. Make sure the instructions are always with the device, even if its sale / transfer of another owner to the user or staff authorized for maintenance or repairs to consult.
  • Page 3 Technical data TYPE: BioTec Plus Nominal heat output (kW) Heat output range (wood) (kW) 12,5-25 17 -3 ,5 5 22,5-45 Heat output range (wood pellets) 7,5-25 10,2-35 13,5-45 (kW) Boiler class (wood / wood pellets) Required chimney underpressure (Pa) Water amount in boiler Exhaust gas temperature at nominal heat output (wood) (°C) 90-170...
  • Page 4 Dimensions, basic parts BioTec Plus 25 BioTec Plus 35 BioTec Plus 45 Technical instructions BioTec Plus...
  • Page 5 Dimensions, basic parts INNER PARTS VIEW FOR BOILERS BioTec Plus 25-45 Boiler dimensions BioTec Plus 25 BioTec Plus 35 BioTec Plus 45 Depth 1605 1450 1450 Width 1055 1255 1260 Height 1350 1450 1585 Other dimensions (C1) 1260 Height (C2)
  • Page 6 Basic parts LEGEND: DM - Flue gas tube connection SV - Middle boiler door (wood) DO - Cover of lower openings of the flue gas chamber TI - Heat exchanger output (safety DS - Lower refractory stone (chamotte) (2 parts) cooling system) (pellet) DV - Lower boiler door (wood) TO - Thermal safety valve sensor...
  • Page 7 General, characteristics 1.0. GENERAL Steel hot water boiler BioTec Plus has two separate combustion chambers inside the common boiler water chamber. Boilers BioTec Plus, nominal heat output 25, 35 and 45 kW, are designed for wood log firing in left part and wood pellet firing in right part of the boiler. The wood gasification principle enables a complete fuel burning in left part of the boiler.

  • Page 8: Safety Precautions

    Safety precautions, important informations Concerning the specific need of sanitary hot water, the BioTec Plus boiler can be connected to one of water heaters produced by our company. We suggest the combination with wall hanged SKB Digi or LKB Digi water heaters, as well as with floor standing TB water heaters or accumulation (buffer) tanks CAS-B.
  • Page 9 Wood gasification combustion process (wood side), firing process (pellet side) 1.4. WOOD GASIFICATION COMBUSTION PROCESS (wood side) Combustion process is carried out in double combustion chamber in several phases. After filling the upper chamber with logs, glow dry the logs, and at temperature 100÷300°C logs are beeing gasified. The gases created in such process are mixed with the oxygen from air and burn out completely with high temperature.

  • Page 10: Delivery Package

    Delivery package 2.0. DELIVERY PACKAGE Boiler BioTec Plus is delivered in parts for easier transportation and mounting to boiler room. Basic equipment is delivered seperately: - left part of the boiler for wood firing with mounted thermal insulation (on wood pallet) with inbuilt: - color touch screen display control unit - combustion chamber sensor - Temperature sensor - Thermocouple (32728)

  • Page 11: Additional Equipment

    Additional equipment 2.1. ADDITIONAL EQUIPMENT Additional equipment is not included in basic delivery. Obligatory additional equipment must be purchased seperately. Other additional equipment can be purchased optionally. 1) OBLIGATORY ADDITIONAL EQUIPMENT: - accumulation (buffer) tank for heating system (CAS (min. liter according to local regulation), inimum 50 litres / kW of boiler - return flow protection - 3-way mixing valve with actuator (protection valve) or 3-way thermostat valve (60°C) (like ESBE VTC 512, VTC 531, LTC 261, LTC 271).
  • Page 12 Boiler / additional equipment positioning and assembly 3.0. BOILER / ADDITIONAL EQUIPMENT POSITIONING AND ASSEMBLY The positioning of the boiler has to be carried out the authorized person. We suggest the positioning on the solid concrete basis, which height is between 50-100 mm. The boiler room has to be absolutely protected from freezing and properly ventilated.
  • Page 13 Installation of delivered parts 3.1. INSTALLATION OF DELIVERED PARTS BioTec Plus is delivered on two wooden pallets. It must be mounted like is described on next pages of these technical instructions. After the boiler is mounted, should be positioned in the boiler room (see point 2.0.).
  • Page 14 Connecting CONNECTING LEFT AND RIGHT SIDE OF THE BOILER Detail 1 Detail 2 Right part of the boiler Left part of the boiler (fuel: wood pellets) (fuel: wood) Detail 1 Detail 2 Prepared flange with holes on left part Prepared flange on right side of the of the boiler.
  • Page 15 Connecting STEP 1: BioTec Plus - left part of the boiler section view Sheet metal protection cover Remove sheet metal protection cover through the upper boiler door. STEP 2: 0° It’s necessary draw closer left side of the boiler to right side of the boiler. Screws from flange on right side of the boiler must get into flange holes on left side of the boiler.
  • Page 16 Connecting Flange has 1 fixed hole and 5 bigger holes - fixed hole to be able to level righ part of the boiler body. - bigger holes BioTec Plus - left part of the boiler section view A - hole with circle shape; other holes are slitted for height niveling possibility. Screws from flange on right side of the boiler must get into flange holes on left side of the boiler like is shown on figure below.
  • Page 17 Connecting STEP 3: BioTec Plus - left part of the boiler section view Put washer, toothed washer and nut on screw like is showned on figure above (B). Tight nut but not completely tight. Level the body of the right part of the boiler with 4 leveling screws. STEP 4: BioTec Plus - left part of the boiler section view Put washers, toothed washers and nuts on all other screws and start tigth them.
  • Page 18 Connecting STEP 5: - Leveling screw - fixed - Leveling screws - adjustable Left and right side of the boiler have adjustable foots. Adjust it if is necessary. Boiler foots must touching boileroom floor. Level left part of the boiler (wood) front right screw is fixed and leveling must be done by other 3 adjusting screws.
  • Page 19 Connecting In some cases there are 3 screws on the left and rigt lover adjusting positions (B). Remove the middle screws and unscrew the upper and lower screw (don’t remove this 2 screws). Also in some cases there can be 2 screws in the upper adjusting position (C).
  • Page 20 Connecting Push the left boiler part cover to the right boiler part cover and fix them together with L-profile part and 4 screws (D). PELLET SIDE COVER ADJUSTMENT - COVER DOOR Front cover door of right boiler part can be Unscrew M8 screw (don’t remove it) to be able to adjusted with the lower adjusting screw so it is adjust lower porter of the cover door (left-right).
  • Page 21 Connecting STEP 6: prepared sockets on left side prepared plugs on right side of the boiler (wood) of the boiler (wood pellets) On left side of the boiler (wood) are prepared sockets, on right side of the boiler (wood pellets) are prepared plugs. Cabels must be connected in right order: 1-1;...
  • Page 22 Connecting Figure 2.a Base protection with mineral wool Push base protection under the boiler Figure 2.b Delivered parts Sensor set Cleaning set Position od cleaning set - on the boiler. Position od cleaning set - on the wall. Technical instructions BioTec Plus...

  • Page 23: Connection To The Chimney

    Figure 3. - Possible connecting of the BioTec Plus boiler to the chimney Possible way of connecting to the Possible way of connecting chimney of the BioTec Plus 25-35 boiler to the chimney of the Bio-Tec Plus boiler (recommendation) (Only BioTec Plus 45 because of position...
  • Page 24 Figure 4. Figure 4. Incorrect connecting the boiler to the chimney - not possible cleaning of the fan BioTec Plus 45 BioTec Plus 25 / 35 Flue gas elbow Flue gas tube Figure 5.
  • Page 25 Fresh air opening 4.1. FRESH AIR OPENING Boiler room must be equipped with an opening for supply of fresh air which is dimensioned in accordance with boiler thermal output (minimum opening area according to below shown equation). Such opening must be protected with a net or grate. All installation works have to be performed in accordance with valid national and European standards.

  • Page 26: Connection To The Central Heating System

    Figure 6a. Examples of main flow contructions (good) cover PL - Main flow min.680 mm min.680 mm min.680 mm BioTec Plus 25 BioTec Plus 35 BioTec Plus 45 min. 830 mm min. 740 mm min. 740 mm BioTec Plus 25...
  • Page 27 Figure 6b. Examples of main flow contructions (bad) PD - Top back casing cover PL - Main flow < 680 mm < 680 mm < 680 mm BioTec Plus 25 BioTec Plus 35 BioTec Plus 45 < 830 mm <...
  • Page 28 Connection to the central heating system Scheme 1a. - Basic scheme for boiler instalation on closed central heating system with return flow protection with thermic valve (group) (electrical connections and sensor are not drawn, for details see general schemes) 05:08 xx°C -°C 20.0°C...
  • Page 29 Connection to the central heating system 5.1. CONNECTION TO THE OPEN CENTRAL HEATING SYSTEM If the boiler is aimed to be integrated into an open central heating system, one of possible way how to connect the boiler to the system is shown on Scheme 1b. In case of BioTec Plus boilers, the boiler pump obligatory has to be connected to the boiler control unit, in order to make turning on and off of the pump depending on the temperature of the water in the boiler, to avoid boiler condensation.

  • Page 30: Boiler Thermal Protection

    Boiler thermal protection 5.2.1. BOILER THERMAL PROTECTION According to European EN standards, boiler thermal protection must be installed in closed heating system. Boiler is factory prepared for installation of thermal protection. Heat exchanger is factory installed on left side of the boiler (wood), and thermal safety valve (7) should be installed according to Scheme 2.
  • Page 31 Thermal valve Scheme 2. - Thermal protection in an closed heating system 1 - Heat exchanger connection (to thermal safety valve) (left side of the boiler - wood) 2 - Connection for the thermal safety valve sensor (left side of the boiler - wood) 3 - Heat exchanger connection (to the sewerage) (left side of the boiler - wood) 4 - Thermal safety valve connection...
  • Page 32 General connection schemes 5.3. GENERAL CONNECTION SCHEMES Each heating scheme with BioTec Plus has option of installing up to 4 pcs CM2K modules (additional heating circuits management, DHW preparation and recirculation). Scheme 3. - General scheme of closed central heating system with 2 or more accumulation (buffer) tanks.
  • Page 33 General connection schemes Scheme 4. - General scheme of closed central heating system with 1 accumulation (buffer) tank, boiler return flow protection with 3 - way mixing valve with electric actuator. 1 - Boiler "BioTec Plus". P1 - Pump P1 (boiler pump) 2 - "CAS"...
  • Page 34 General connection schemes Scheme 5.- General scheme of closed central heating system with 1 accumulation (buffer) tank and DHW preparation in front behin accumulation (buffer) tank IMPORTANT! This way of connecting DHW tank is neccesary if in some part of the year we only want to use pellets for heat DHW tank. 1 - Boiler "BioTec Plus".
  • Page 35 General connection schemes Scheme 6. - General scheme of closed central heating system with 1 accumulation (buffer) tank, heating system behind accumulation (buffer) tank, 1 heating circuit with 3-way mixing valve with actuator (or without actuator), and DHW preparation. P1 - Pump P1 (boiler pump) 1 - Boiler "BioTec Plus".
  • Page 36 General connection schemes Scheme 7. - General scheme of closed central heating system with 1 accumulation (buffer) tank, heating system in front of accumulation (buffer) tank, 1 heating circuit with 3-way mixing valve with actuator, room corrector, and DHW preparing. 1 - Boiler "BioTec Plus ".
  • Page 37 General connection schemes Scheme 8. - General scheme of closed central heating system with 1 accumulation (buffer) tank, heating system behind accumulation (buffer) tank, 2 heating circuit with 3-way mixing valve (one with actuator, other manually operated). P1 - Pump P1 (boiler pump) 1 - Boiler "BioTec Plus".
  • Page 38 General connection schemes Scheme 9. - General scheme of closed central heating system with 1 accumulation (buffer) tank, heating system behind accumulation (buffer) tank, 3 heating circuit with 3-way mixing valve and DHW preparing. 1 - Boiler "BioTec Plus". F - CM2K module (can be expanded to P1 - Pump P1 (boiler pump) 2 - "CAS"...
  • Page 39 General connection schemes Scheme 10. - General scheme of closed central heating system with 1 accumulation (buffer) tank, hydraulic crossover behind accumulation (buffer) tank, 2 heating circuits with 3-way mixing valve with actuator managed by CM2K module, DHW preparing. 1 - Boiler "BioTec Plus". P1 - Pump P1 (boiler pump) F - CM2K module (can be expanded to 2 - "CAS"...
  • Page 40 General connection schemes Scheme 11. - General scheme of closed central heating system with 1 accumulation (buffer) tank, hydraulic crossover behind accumulation (buffer) tank, 3 heating circuits with 3-way mixing valve with actuator (1 direct heating circuit and 2 circuits managed by CM2K module).
  • Page 41 General connection schemes Scheme 12. - General scheme of closed central heating system with 1 accumulation (buffer) tank, custom heating system 1 - Boiler "BioTec Plus". P1 - Pump P1 (boiler pump) 2 - "CAS" accumulation (buffer) tank A - Accumulation tank sensor (upper) 3 - Return flow protection (3-way mixing valve with actuator B - Accumulation tank sensor (lower) (protection valve) or 3-way thermic valve (60°C),...
  • Page 42 Boiler controller, fuses 6.0. BOILER CONTROLLER (REGULATION) 6.1. BOILER CONTROLLER POSITIONING Figure 7. Boiler electronic Boiler electronic position (Wood side) STB - Safety thermostat Main switch Control unit display Boiler electronic STB - Safety position (Pellets side) thermostat 6.2. FUSES Wood side: can be installed 32861XXXXXXX or BIOPELTEC-D-G (32861XXXXXXX G) PCB (printed circuit board).
  • Page 43 Fuses PCB: BIOPELTEC-D-G (32861XXXXXXX "G") Lambda - PCB Mark: F1 3,15 A, M label board: BIOPELTEC-D-G Mark: F2 Mark: F1 (32861XXXXXXX "G") 3,15 A, M 3,15 A, M Pellet side: can be installed 51229XXXXXXX or BIOPELTEC-D-G (51229XXXXXXX "G") PCB (printed circuit board). PCB: 51229XXXXXXX label board: 51229XXXXXXX...
  • Page 44 Fuses PCB: BIOPELTEC-D-G (51229XXXXXXX "G") label board: BIOPELTEC-D-G (51229XXXXXXX "G") Mark: F2 Mark: F1 3,15 A, M 3,15 A, M PCB: 32861XXXXXXX MARK FUSE DEVICES - pumps P1, P2, P3 3,15 A, M - controller (power supply) - secondary air control motor - primary air control motor 1,6 A, M - mixing valve motor...
  • Page 45 Fuses PCB: 51229XXXXXXX MARK FUSE DEVICES - Screw refill 3,15 A, M - electromagnetic valve - Feeder screw motor device - Rotary valve (RSE) - grate cleaner motor 1 6 , A, M - Automatic flue gas tubes cleaning (Flue pass. Cleaner) - electric heater 3 15 A, M...

  • Page 46: Electric Connection

    Electric connection 7.0. ELECTRIC CONNECTION All electrical works must be performed by a certified professional in accordance with valid national and European standards. A device for switching of all power supply poles must be installed in electrical installation in accordance with the national regulations on electrical installations. When connecting any electrical part be sure to unplug the boiler at the main switch and disconnect the power supply.
  • Page 47 Electric connection 7.1. ELECTRICAL SCHEME INSTALLATION - built-in 32861XXXXXXX and 51229XXXXXXX PCB (printed circuit board) Technical instructions BioTec Plus...
  • Page 48 Electric connection Technical instructions BioTec Plus...
  • Page 49 Electric connection Technical instructions BioTec Plus...
  • Page 50 Electric connection S9 - Room thermostat (voltage-freecontact) S10 - Alarm output 1 (Additional equipment) S11 - Alarm output 2 (Additional equipment) Technical instructions BioTec Plus...
  • Page 51 Electric connection Technical instructions BioTec Plus...
  • Page 52 Electric connection Technical instructions BioTec Plus...
  • Page 53 Electric connection Technical instructions BioTec Plus...
  • Page 54 Electric connection 7.2. ELECTRICAL SCHEME INSTALLATION - built-in BIOPELTEC-D-G (32861XXXXXXX G) and 51229XXXXXXX PCB (printed circuit board) Technical instructions BioTec Plus...
  • Page 55 Electric connection Technical instructions BioTec Plus...
  • Page 56 Electric connection Technical instructions BioTec Plus...
  • Page 57 Electric connection Technical instructions BioTec Plus...
  • Page 58 Electric connection Technical instructions BioTec Plus...
  • Page 59 Electric connection Technical instructions BioTec Plus...
  • Page 60 Electric connection Technical instructions BioTec Plus...
  • Page 61 Electric connection 7.3. ELECTRICAL SCHEME INSTALLATION - built-in BIOPELTEC-D-G 32861XXXXXXX "G" and 51229XXXXXXX "G" PCB (printed circuit board) Technical instructions BioTec Plus...
  • Page 62 Electric connection Technical instructions BioTec Plus...
  • Page 63 Electric connection Technical instructions BioTec Plus...
  • Page 64 Electric connection Technical instructions BioTec Plus...
  • Page 65 Electric connection Technical instructions BioTec Plus...
  • Page 66 Electric connection Technical instructions BioTec Plus...
  • Page 67 Electric connection Technical instructions BioTec Plus...
  • Page 68 Boiler sensors and probes 7.4. BOILER SENSORS AND PROBES BioTec Plus 25-35 BioTec Plus 45 - Boiler temperature sensor (left side of the boiler; fuel: wood) - Temperature sensor NTC 5K - PVC l=1000 (12041) - Boiler temperature sensor (right side of the boiler; fuel: wood pellets) -...
  • Page 69 Boiler sensors and probes RESISTANCE LIST NTC Pt1000 SENSOR RESISTANCE LIST NTC 5k/25°C SENSOR (measuring field -30 - +400 °C) (measuring field from -20 - +130 °C) Temperature Temperature Resis. Temperature Resis. Resistance (°C) (°C) (°C) ( W ) ( W ) 48.534 1.866 36.465...

  • Page 70: Boiler Use

    Boiler use 8.0. BOILER USE Boiler must not be used in flammable and explosive environment. It must not be used by children or disabled persons (either physically or mentally), as well as by person without knowledge or experience, unless they are under control or trained by s person responsible for their safety.
  • Page 71 Boiler control unit use, buttons 8.1. BOILER CONTROL UNIT USE 8.1.1. BUTTONS Button ’’ON / OFF’’ Button ’’OK’’ options: on / off boiler operation’’ Button ’’DISPLAY SELECTION’’ Button ’’START’’/’’STOP’’ options: main menu / work Button ’’BOILER OPERATION DISPLAY’’ Navigation buttons: options: graphic / numeric ’’LEFT’’, ’’RIGHT’’, ’’UP’’, ’’DOWN’’...
  • Page 72 Symbols 8.1.2. SYMBOLS Pump (when pump is working symbol is rotating, otherwise idle) The pump has a request for work (next to the pump symbol bright yellow square when the consumer given the demand for work the pump, the pump does not work if you have not met all the conditions for work, for example.

  • Page 73: Main Screen

    Main screen 8.1.3. MAIN SCREEN 13 14 19 20 1a - Boiler (Wood firing side) 11 - Combustion chamber temperature 1b - Boiler (Pellet firing side) 12 - Flue gas temperature 2 - Buffer tank 13 - The percentage of oxygen in the flue gases 3 - Boiler pump P1 (lambda probe) 4 - 3 - way protection valve...
  • Page 74 Main menu 8.1.4. MAIN MENU Main menu on BioTec Plus boiler control unit is composed of two parts - changeable part (1a and 1b) and static part (2). By pressing button for change fuel (see image below) displayed parameter will be changed.
  • Page 75 Choosing boiler side (choosing fuel) 8.1.5. CHOOSING BOILER SIDE (choosing fuel) Using of BioTec Plus boiler are consist of using of left part of the boiler (fuel: wood) and using of right part of the boiler (fuel: wood pellets). On boiler control unit is necessary to choose which side of the boiler will be used (which fuel will be used).
  • Page 76 Taking over 8.1.6. TAKING OVER Note: Option „Taking over” is possible only from left side of the boiler (fuel: wood) to right side of the boiler (fuel: wood pellets) (wood pellets taking over wood). „Taking over” option is used for automatic switching operation from one fuel to another fuel. Automatic switch is possible only from wood to wood pellets.
  • Page 77 Taking over b) activating „Taking over” option through main screen (boiler side activity indicator) Hold this button for 3s! Hold this button for 3s! Press green activity indicator on right boiler side (fuel: wood) and hold it for 3 seconds. On display will be desplayed „Do you want to ENABLE „pellets take over?”.
  • Page 78 Operation phases (stages) - shown on the screen 8.1.7. OPERATION PHASES (STAGES) - SHOWN ON THE SCREEN IMPORTANT! Automatically resume boiler operation after the disappearance of electric power (PF phases) is not possible if language selection option is turned on. For disabling option „Language selection“...
  • Page 79 Operation phases (stages) - shown on the screen Exceptions: 1. If upper boiler door is opened, there is no possibility of manual confirmation of the message "IGNITION 2/3" either is not possible to automatically move to the next message "IGNITION 3/3". Closing the upper boiler door, boiler moves to above described (normal) procedure phase "S1".
  • Page 80 Operation phases (stages) - shown on the screen Operat. Description phase - Shutting down the boiler for keeping the glow. GLW1 - Phase of keeping the glow. GLW2 - Glow blowout in phase of keeping the glow. GLW3 - Start a new filling, set the primary / secondary. GLW4 - Shutting down after which the boiler goes into phase „OFF“.
  • Page 81 Operation phases (stages) - shown on the screen Power D0 Power D1 Power D2 Power D3 Power D4 Power D5 Power D6 Shuting down stage 1st stage of shuting down stage, waiting for flame to dissapear and additional blowing for set time, after which S7-2 stage starts.

  • Page 82: Ignition Phase

    Use the left side of the boiler - Fuel: wood, ignition 8.2. USE THE LEFT SIDE OF THE BOILER - FUEL: WOOD 8.2.1. IGNITION Boiler must not be used in flammable and explosive environment. It must not be used by children or disabled persons (either physically or mentally), as well as by person without knowledge or experience, unless they are under control or trained by s person responsible for their safety.
  • Page 83 Use the left side of the boiler - Fuel: wood, ignition - if this message is shown on display than wait for primary and secondary air actuators Primary and secondary wings - primary and secondary air is ready for work when indicator seeking initial position.
  • Page 84 Use the left side of the boiler - Fuel: wood, ignition - on display is displayed message "IGNITION 2/3" - on this step is neccessary to wait until flue gas temperature raise 50°C - middle boiler door must be opened all time - when is flue gas temperature higher than 50°C press ”enter“...
  • Page 85 Use the left side of the boiler - Fuel: wood, ignition Additional: During ignition phase is possible to see main display. It is neccessary to press button. Because ignition phase is on proces, display will be displayed current ignition step to (1). By pressing button we return to full preview of ignition phase.
  • Page 86 Refilling 8.2.2. REFILLING Boiler must not be used in flammable and explosive environment. It must not be used by children or disabled persons (either physically or mentally), as well as by person without knowledge or experience, unless they are under control or trained by s person responsible for their safety. Children must be supervised in the vicinity of the product.
  • Page 87 Refilling ACTION: Press button „START / STOP“, on display will be displayed window with offered options „NEW LOADING“ and „OFF“. Press button NEW LOADING „NEW LOADING“. GLW2 On display is displaying boiler operating phase „SP1". Description of the refilling wood loading chamber: - open upper boiler door (see pages 4 and 5 in this technical instructions).
  • Page 88 Refilling PROCEDURE IF GLOW IS NOT ENOUGH GOOD If glow is not enough good for fuel refilling folow the next steps: ACTION: Press button „START / STOP“, on display will be displayed window with offered options NEW LOADING „NEW LOADING“ and „OFF“. Press button „OFF.

  • Page 89: Boiler Start

    Use the right side of the boiler - Fuel: Wood pellets 8.3. USE THE RIGHT SIDE OF THE BOILER - FUEL: WOOD PELLETS Boiler must not be used in flammable and explosive environment. It must not be used by children or disabled persons (either physically or mentally), as well as by person without knowledge or experience, unless they are under control or trained by s person responsible for their safety.

  • Page 90: Boiler Stop

    Use the right side of the boiler - Fuel: Wood pellets BOILER STOP: For boiler stop is neccesary to press ON / OFF button. After pressing ON / OFF button on display will be displayed window for boiler stop confirmation. Press „OK” to confirm boiler stop. Technical instructions BioTec Plus...
  • Page 91 Use the right side of the boiler - Fuel: Wood pellets 8.3.1. REFFILING OF WOOD PELLETS Wood pellet is manual filling on right upper side of the boiler (pellet part) (see figure below). It’s necessary to open casing cover using the handle. IMPORTANT: At filling wood pellet tank it must be filled at least 2/3 of capacity for correct work of wood pellet level sensor!
  • Page 92 Temperature adjustment x.x.x. TEMPERATURE ADJUSTMENT 8.4. TEMPERATURE ADJUSTMENT Temperature adjustment are performed seperately for left (fuel: wood) and right (fuel: wood pellets) side of the boiler. For adjustment left side of the boiler (fuel: wood) temperature it’s necessary to choose menu for wood firing (WOOD(w)). For adjustment right side of the boiler (fuel: wood pellets) temperature it’s necessary to choose menu for wood pellet firing (PELLETS(p)).
  • Page 93 Temperature adjustment 4. DHW temperature (depend about DHW configuration) In this submenu is possible to adjust domestic hot water temperature. - Factory adjusted: 50°C - Adjustment range: 40°C - 80°C 5. Differential of DHW (depend about DHW configuration) In this submenu is possible to adjust differential of domestic hot water temperature. - Factory adjusted: 5°C - Adjustment range: 4°C - 40°C Technical instructions BioTec Plus...
  • Page 94 Temperature adjustment TEMPERATURE ADJUSTMENT FOR WOOD PELLET FIRING Fuel: Wood pellets This submenus depend about DHW configuration Submenus: 1. p.Maximal boiler temperature In this submenu is possible to adjust maximal boiler working temperature. - Factory adjusted: 80°C - Adjustment range: 70°C - 90°C 2.
  • Page 95 Temperature adjustment 5. Minimal buffer tank temperature In this submenu is possible to adjust buffer tank temperature. - Factory adjusted: 20°C - Adjustment range: 5°C - 85°C 6. DHW temperature (depend about DHW configuration) In this submenu is possible to adjust domestic hot water temperature. - Factory adjusted: 50°C - Adjustment range: 40°C - 80°C 7.

  • Page 96: Operation

    Operation 8.6. OPERATION Submenus in ’’Operation’’ menu depend of the enabled options in "Installation" menu and depend of the select side of the boiler (wood or pellet). Fuel: WOOD (w) Fuel: Pellets (p) Technical instructions BioTec Plus...

  • Page 97: Manual Test

    Operation 8.6.1. MANUAL TEST Manual test is an option which enables testing of all parts of the boiler in order to check their function. Submenus in ’’Manual test’’ menu depend of the enabled options in "Installation" menu and depend of the select side of the boiler (wood or pellet). MANUAL TEST IS POSSIBLE ONLY WHEN THE BOILER IS SWITCHED OFF! Technical instructions BioTec Plus...
  • Page 98 Operation 8.6.1.1. SCREW REFILL (ADDITIONAL EQUIPMENT) This option allows you to check the motor device of screw refill. It is necessary to press the ''START'' next to the corresponding symbol and check that the motor device of the srew refill is working. After pressing the ''STOP'' engine will stop working.
  • Page 99 Operation This option is used to ON or OFF the screw refill. Factory: ON Possible selection: ON, OFF This option is used to set the time of the screw refill. See technical manual "PELLET TANK / CPSP-BP 800" for details. Technical instructions BioTec Plus...
  • Page 100 Internet supervision x.x.x. TEMPERATURE ADJUSTMENT 8.6.3. INTERNET SUPERVISION - avaible only from firmware version "v1.09a" IMPORTANT NOTES: CM WiFi-box requires active DHCP server of Access Point (e.g. router) because manual setting of network parameters is not possible. For more informations contact administrator of your home network.
  • Page 101 Internet supervision Factory: Supervision + control This option allows you to enter the name of WiFi OFF, Supervision, Supervision + control home network to which you want to connect the "Cm WiFi box" and the boiler. You must enter exact WiFi This option is used to set and enable/disable internet supervision.
  • Page 102 CSK-Touch (additional equipment) 8.7. CSK-Touch (additional equipment) - only for authorized service technicians - possible from the software version "v1.10" The CSK-Touch digital room corrector enables room temperature control and the heating circuit is switched ON and OFF according to the set room temperature and schedules. In addition to measuring and correcting the room temperature, this room corrector allows you to set the min.
  • Page 103 CSK-Touch (additional equipment) After configuring the heating circuits on the CM2K module, it is necessary to open the INFO menu in the CSK-Touch menu and Wired copy/remeber the CSK-Touch WiFi ID (1) Router 42dB and Address Codes (2) (depending on the Addr.

  • Page 104: Cleaning And Maintenance Of The Boiler

    Cleaning and maintenance of the boiler 9.0. CLEANING AND MAINTENANCE OF THE BOILER NOTE: For any electrical connections, be sure to turn off the boiler at the main switch and disconnect the power supply cable. Every millimeter of soot and dirt on the surfaces of the boiler surface means approx. 5% higher fuel consumption.
  • Page 105 Cleaning and maintenance of the boiler Boiler type Description Cleaning / maintenance interval Cleaning ash in firebox and under firebox (through middle and lower door - left part Before each ignition 25, 35 and 45 kW of the boiler) and ash tray emptying from right part of the boiler.
  • Page 106 Cleaning and maintenance of the boiler Cleaning / maintenance interval Boiler power Description Check the correctness of security Every 6 months 25, 35 and 45 kW valve Checking the correctness of security valve By briefly turning the cap of safety valve (C) check whether water coming out from the safety valve.
  • Page 107 Cleaning and maintenance of the boiler Cleaning / maintenance interval Boiler power Description Cleaning of area over heat At least once per year 25, 35 and 45 kW exchanger pipes with turbulators 1 - Switch off the boiler and disconnect from electric. power. 2 - Take out last upper cover side.
  • Page 108 25, 35 and 45 kW At least once per year the fan BioTec Plus 25, 35 1. Switch off the boiler and disconnect from electric. power. 2. Unscrew nuts (A) shown in Image 1. 3. Relase screws (B) shown in Image 2.
  • Page 109 Cleaning and maintenance of the boiler Red photocell Boiler type Description Cleaning interval At least once a year (or if you have problems 25, 35 and 45 kW Photocell cleaning with the ignition) Dirty photocell which can result error in Valid photocell ignition or flame dissapear error Carefully remove the photocell from the box and then gently with a cotton swab clean the...
  • Page 110 Cleaning and maintenance of the boiler New photocell Boiler type Description Cleaning interval At least once a year (or if you have problems 25, 35 and 45 kW Photocell cleaning with the ignition) Dirty photocell which can result error in Valid photocell ignition or flame dissapear error Carefully remove the photocell from the box and then gently with a cotton swab clean the...
  • Page 111 Extraction of turbulatos Cover side intended for removal due to access to electrical appliances (side: wood pellets) - remove 1. Unlock the cover on the right side of the boiler with a key in a clockwise direction. 2. Lift the cover slightly upwards (2a) to separate it from the upper hooks (A) and pull it towards you (2b) to separate the upper part of the cover.
  • Page 112 Extraction of turbulatos Cover side intended for removal due to access to electrical appliances (side: wood pellets) - installation 1. Place the cover on the lower hooks (A) as shown in the figure. Detail A Detail A 2. Once the cover is firmly on the lower hooks, it should be lifted and attached to the upper hooks (B). After that, just put the cover onto the upper hooks.
  • Page 113 Extraction of turbulatos 9.2. EXTRACTION OF TURBULATORS 1 - Switch off the boiler and disconnect from electric. power. 2 - Take out last upper cover side. 3 - Release 4 nuts and open the flue gas chamber. 4 - Release 2 screws of turbulator axle and pull out turbulators.
  • Page 114 Replacement of the electric heater 9.4. REPLACEMENT OF THE ELECTRIC HEATER NOTE: For any electrical connections, be sure to turn off the boiler at the main switch and disconnect the power supply cable. The upper part of the heater clamp diameter Ø20mm The lower part of the heater clamp diameter Ø20mm The heater holder...
  • Page 115 Replacement of the electric heater 1. Disconnect the wires of the electric heater from the terminal block (Detail A), to be able to remove the primary air regulation. primary air regulation Detail A 2. Unscrew the 4 screws and remove the primary air regulation. Then unscrew the 2 heater holder screw and pull out heaters holder together with the el.
  • Page 116 Replacement of the electric heater 4. Place the el. heater with the holder in place and fasten it with two screws. Set the heater to the inner edge of the burner hole (see detail C). If necessary, loosen the clamp of the heater holder and push the holder until the edge of the burner hole and then tighten the clamp.
  • Page 117 Malfunctions, errors/warnings/informations on the main screen 10.0. MALFUNCTIONS 10.1 ERRORS/WARNINGS/INFORMATIONS ON THE MAIN SCREEN When the error/warning still present, error/warning name and code is painted red, and when error/warning is resolved, text turns green Error / Warning / Information code Error / Warning / Information name Date and time of error / warning / information occurrence Number of errors / warnings / informations...
  • Page 118 History 10.2. HISTORY By pressing on „History” button will be opened menu for choosing history list. It can be choosen between error list and warning list. Informations history are placed with error list. Written is: - time of occurrence errors / warnings / informations - error / warning / information code - description of the error / warning / information.

  • Page 119: Error List

    Error list 10.3. ERROR LIST MUTUAL ERRORS (WOOD / WOOD PELLETS): ERROR NAME DESCRIPTION Boiler status: Boiler go to phases S7, C0 and OFF. Possible causes:Interruption on el. connections between DHW sensor error sensor and boiler, connection to the boiler, cold connection or DHW sensor is invalid.
  • Page 120 Error list Boiler status: Boiler immediate go to phase OFF. Communication error with Possible causes: Call service man! motherboard Boiler status: Boiler go to phases S7, C0 and OFF. Communication error with Possible causes: Call service man! sensor board a) Error occurs in the phase of "OFF" The problem is with el.
  • Page 121 Error list Boiler status: Boiler work normally. Hydraulic crossover Possible causes: Interruption on el. connections between sensor error room corrector and boiler, connection to the boiler or hydraulic crossover sensor is invalid. Boiler status: Boiler work normally. Communication error with Possible causes:Interruption in el.
  • Page 122 Error list Boiler status: Pump of 6+ heating circuit work in intervention mode by heating curve. Boiler work normally. Corrector CM2K 6. circuit Possible causes: E20_2 Error on room corrector of 6+ heating circuit (CM2K regulator), bad corrector connection to the CM2K or room corrector failure.
  • Page 123 Error list WOOD FIRING ERRORS: ERROR NAME DESCRIPTION Boiler status: Boiler work normally. Intervention mode: Boiler work to content heating demand Firebox sensor Ew21 but boiler has reduced possibilities. Possible causes: Invalid firebox sensor. WOOD PELLETS FIRING ERRORS: ERROR NAME DESCRIPTION Boiler status: Boiler go to phase OFF after ending phase S0 (retry start is allowed).
  • Page 124 Error list Boiler status: Boiler work normally. Possible causes: Check the pellet level in the big Ep41 No pellets tank/room , check if the flexible tubes are blocked, check if the turbine net is full with dust. Boiler status: Boiler work normally. Possible causes: Check the electric connections on the Ep42 Mole or screw not working...

  • Page 125: Warning List

    Warning list 10.4. WARNING LIST MUTUAL WARNINGS (WOOD / WOOD PELLETS): WARNING NAME DESCRIPTION Factory settings loaded. Factory setting loaded Appear always when fan decrease rotating speed or if Fan protection turning ”OFF“ itself because of high flue gas temperature. Intervention work The boiler operates without using the firebox sensor.
  • Page 126 Warning list Fan is OFF, flue gas Too high flue gas temperature with the open upper boiler temperature is to high. door. Close the uper door and restart the boiler (load fuel if is Close the upper door! necessary). No fuel. Out of fuel Ww11 WOOD PELLETS FIRING WARNINGS:...

  • Page 127: Information List

    Information list 10.5. INFORMATION LIST MUTUAL INFORMATIONS (WOOD / WOOD PELLETS): INFO. NAME POWER UP: Electricity back again (POWER DOWN): after power failure WOOD FIRING INFORMATIONS: INFO. NAME Off during ignition Ignition automaticly proceeded Bad ignition Off during stabilization Glow after power up Off...
  • Page 128 Date & time, info, display 11. DATE & TIME This option is used to set the date and time. This option is used to set the date and time. It is necessary for starting times, and the recording of errors / warnings (for the occurrence of errors / warnings, remembers the date and time of occurrence).

  • Page 129: Load Factory

    File, installation, CM2K 14. FILE Pressing this option will open a menu with: - LOAD FACTORY - SAVE - LOAD SERVICE - LOAD 14.1. LOAD FACTORY After pressing ''LOAD FACTORY'' you will see a message ''Load FACTORY settings?''. Pressing button ''OK'' will load the default settings of regulation. IMPORTANT: All settings will return to the factory settings.
  • Page 130 Centrometal d.o.o. Glavna 12, 40306 Macinec, Croatia central tel: +385 40 372 600, fax: +385 40 372 611 service tel: +385 40 372 622, fax: +385 40 372 621 www.centrometal.hr...

This manual is also suitable for:

Biotec plus 35Biotec plus 45

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