DOMUSA TEKNIK BioClass iC 66 Installation And Operating Instructions Manual
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DOMUSA TEKNIK BioClass iC 66 Installation And Operating Instructions Manual

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Bioclass iC 66
Biomass boiler
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| INSTALLATION AND OPERATING INSTRUCTIONS

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Summary of Contents for DOMUSA TEKNIK BioClass iC 66

  • Page 1 Bioclass iC 66 Biomass boiler | INSTALLATION AND OPERATING INSTRUCTIONS...
  • Page 3 Thank you for choosing a DOMUSA TEKNIK heating boiler. Within the product range offered by DOMUSA TEKNIK you have chosen BioClass iC 66 model. With a suitable hydraulic installation and with a correct fuel, this boiler will provide the ideal level of comfort for your home.

  • Page 4: Table Of Contents

    ..........................47 EED AUGER FILLING 12.2 F ........................48 EED AUGER CALIBRATION 12.3 M .................... 49 ANUAL SETTING OF FEED AUGER CALIBRATION 12.4 M ......................49 ANUAL ASH CLEANING ACTIVATION 12.5 M ....................49 ANUAL CIRCULATION PUMPS ACTIVATION BIOCLASS iC 66...
  • Page 5 23 DIAGRAMS AND MEASUREMENTS ................... 69 24 CONNECTIONS DIAGRAM ....................... 70 24.1 B ............................. 70 OILER 24.2 B ............................71 URNER 24.3 E ..........................72 LECTRICAL DIAGRAM 25 TECHNICAL DATA ........................73 26 ALARM CODES ........................75 BIOCLASS iC 66...

  • Page 6: List Of Components

    2. Sensor housing. 9. Ash drawer. 3. Automatic Air vent. 10. Air pressure sensor. 4. Fan. 11. Burner. 5. Heat exchanger cleaning system. 12. Peephole. 6. Water pressure sensor. 13. External ash box. 7. Fuel entrance safety thermostat. BIOCLASS iC 66...
  • Page 7 Also it is used to the "Setup menu". Touch this button to access exit from any of the menus or parameters of the the settings options. boiler without saving it and to return to the previous menu level. BIOCLASS iC 66...

  • Page 8: Installations Instructions

    You must maintain the minimum distances to the surrounding components: a = mín. 500 mm. b = mín. 500 mm. c = mín. 1000 mm. d = mín. 500 mm. e = mín. 2500 mm. BIOCLASS iC 66...

  • Page 9: Hydraulic Installation

    2.3 Installing a Sanit hot water tank (Optional) For a correct electrical connection of a Sanit DHW hot water tank with BioClass iC 66 boiler, these steps should be followed: Unplug the boiler from the mains power.

  • Page 10: Fuel

    2.4 Fuel BioClass iC 66 boiler must be fuelled by EN Plus-A1 or DIN PLUS certified wood pellet. The DIN PLUS or EN Plus-A1certificate assures that the fuel’s humidity levels and calorific value are ideal for optimum boiler functioning.

  • Page 11: Installing The Hopper

    2.5 Installing the hopper DOMUSA TEKNIK supplies a reserve tank with the boiler with a Fuel suction system for the transport and storage of pellets. It is also equipped with adjustable feet for height regulation. In addition, the tank incorporates an adjustable leg system to adjust its height.

  • Page 12: Installation Of A Room Temperature Sensor Or Thermostat

    For the correct connection of a room sensor to the BioClass iC 66 boiler, proceed as follows: Unplug the boiler from the mains.

  • Page 13: Electrical Connection

    2.8 Combustion product removal BioClass iC 66 boiler is a biomass boiler and it is essential for it to be connected to a flue, i.e. a smoke duct able to create a pressure drop (which in this case should be between 0.10 and 0.20 mbar), in compliance with the applicable laws to this regard.

  • Page 14: Pressure Drop Curves

    2.10 Installation with a BT Buffer Tank (Optional) The BioClass iC 66 boiler can be accompanied by a BT Buffer Tank during the installation from the wide range offered by DOMUSA TEKNIK, which may increase the benefits provided by the boiler in the heating service.
  • Page 15 + DHW After the hydraulic installation of all the system components, proceed as follows to carry out the correct electrical connection of the BT buffer tank to the BioClass iC 66 boiler: Unplug the boiler from the mains power. •...
  • Page 16 After that, if it is necessary, set also the parameter P.28 "BT buffer tank temperature • hysteresis". For the correct hydraulic and electrical installation of a Sanit DHW tank with a BioClass iC 66 boiler, "Installing a Sanit tank" carefully follow the directions in the section in this manual.
  • Page 17 + DHW After the hydraulic installation of all the system components, proceed as follows to carry out the correct electrical connection of the BT buffer tank to the BioClass iC 66 boiler: Unplug the boiler from the mains power. •...
  • Page 18 • Menu") and set the value to "4". For the correct hydraulic and electrical installation of a Sanit DHW tank with a BioClass iC 66 boiler, "Installing a Sanit tank" carefully follow the directions in the section in this manual.

  • Page 19: Installation With Abt-Duo Buffer Tank (Optional )

    2.11 Installation with a BT-DUO buffer tank (Optional) The BioClass iC 66 boiler can be accompanied by a BT-DUO Buffer Tank during the installation from the wide range offered by DOMUSA TEKNIK, which may increase the benefits provided by the boiler in the heating service.
  • Page 20 After the hydraulic installation of all the system components, proceed as follows to carry out the correct electrical connection of the BT-DUO buffer tank to the BioClass iC 66 boiler: Unplug the boiler from the mains power. • Disconnect the electrical resistance (Rbt) connected between terminals 18 and 19 of •...

  • Page 21: Commissioning Of The Boiler

    Switching on the boiler with no water inside could result in serious damage. 3.3 Initial calibration of the feed auger BioClass iC 66 boiler is equipped with a feed auger to supply the fuel. Follow the instructions described "Installing the hopper”...

  • Page 22: Installation Delivery

    Upon delivery of the boiler, the user receives the following documents: The boiler installation and operation manual. • Combustion analysis performed during commissioning. • The commissioning sheet. • BIOCLASS iC 66...

  • Page 23: Digital Display

    4 DIGITAL DISPLAY BioClass iC 66 boiler is equipped with a digital touch display for viewing and adjustment of the different boiler settings. The display has various display areas where different icons and numbers appear to indicate the different status of the boiler.
  • Page 24 3 way mixing valve of the circuit activation mode. The upper arrow indicates that the hot channel of the valve is opening, and the lower arrow indicates that the hot channel of the valve is closing. BIOCLASS iC 66...
  • Page 25 “Menu” It is displayed when any of the is in browse mode. It is displayed when the parameter shown by the numerical digits is adjustable and it is displayed blinking when the parameter is in adjustment mode. BIOCLASS iC 66...

  • Page 26: Operation

    5 OPERATION BioClass iC 66 is set by default as an “Only Heating” boiler. Optionally, to increase the system's performance, a Domestic Hot Water tank (Sanit) offered by DOMUSA TEKNIK may be connected. 5.1 “Only heating” operation In this operation mode, it is needed to set a temperature of the boiler (see “Boiler temperature set point selection”), of the room thermostat (TA...

  • Page 27: Boiler Temperature Set Point Selection

    DHW temperature set point is set by pressing “+” and “-“ buttons. It is possible to disable the DHW service by setting to "OFF" the DHW temperature set point by pressing (19) “-“ for DHW BIOCLASS iC 66...

  • Page 28: Selecting The Set Point Temperature Of The Buffer Tank (Only With Buffer Tank)

    "+" or "-" symbols to select the desired temperature. Summer If you wish to totally disable the central heating function of the installation ( mode), select the set point value "OFF", by touching the "-" symbol until this value appears on the display. BIOCLASS iC 66...

  • Page 29: Operation With A Bt Buffer Tank (Optional)

    6 OPERATION WITH A BT BUFFER TANK (OPTIONAL) The BioClass iC 66 boiler can be accompanied by a BT Buffer tank from the wide range of tanks offered by DOMUSA TEKNIK. This tank accumulates heat energy that improves the performance of the system when switching the boiler on and off.

  • Page 30: Operation With A Control Thermostat In The Bt Buffer Tank (P.08 = 3 Or 4)

    5 to 10 °C higher. The modulating burner of the BioClass iC 66 boiler will start working to heat the water within it. When the boiler temperature exceeds 60 ºC the feed pump for the buffer tank (Bbt) will start up to heat the BT tank, provided that its control thermostat is activated (demanding heating).

  • Page 31: Operation With A Bt-Duo Buffer Tank (Optional)

    BT-DUO buffer tank and it is recommended that it be at least 5 to 10 °C higher. The modulating burner of the BioClass iC 66 boiler will start working to heat the water within it. When the boiler temperature exceeds 60 ºC the feed pump for the buffer tank will start up to heat the BT-DUO tank, provided that its control thermostat is activated (demanding heating).

  • Page 32: Iconnect " Connectivity

    Wi-Fi network in the place where the boiler is installed. In turn, the Wi-Fi module built into the BioClass iC 66 boiler is only compatible with 2.4 GHz frequency Wi-Fi networks. The connection and registration in the iConnect application can be done with any device with an Android 4.4 operating system or later or iOS 13 or later (iPhone 6S terminal or later), and must...

  • Page 33: Boiler Registration In Iconnect

    APP (right part of the APP), the user will be able to select the boiler they want to manage at all times, as well as the desired heating zone, if there is more than one installed. BIOCLASS iC 66...

  • Page 34: Description Of The Iconnect Application

    In addition, the front door or on the back cover of this manual, of the BioClass iC 66 has a visible QR code that can be used to directly access the iConnect area of the DOMUSA TEKNIK website..
  • Page 35 "Privacy Policy" • About: Use this option to access the verify the version of the Application. • Close session: Clicking on this option will close the user session and redirect "Login" you to the screen of the Application. BIOCLASS iC 66...

  • Page 36: Operating With Lago Fb Ot+ Remote Control (Optional)

    DHW service function When BioClass iC 66 boiler is installed together with a DHW tank the desired DHW temperature and the desired periods of time for DHW service must to be set at LAGO FB OT+ remote control. LAGO FB OT+ remote control regulates the DHW tank temperature and enables or disables the DHW service according to the time periods scheduled.

  • Page 37: User Menu

    . Pressing it whilst in programmed mode will deactivate said mode and activate manual mode. (Only with the Bio Hydraulic Kit and room sensor connected). Real room temperature of Zone 3 (Only with the Bio Hydraulic Kit and room sensor connected). BIOCLASS iC 66...
  • Page 38 Actual temperature of the Buffer Tank (only with buffer tank connected and with control by temperature sensor) Actual boiler temperature. Actual boiler water pressure. Actual active boiler temperature set point. BIOCLASS iC 66...

  • Page 39: Ashtray Status

    (18) point setting by means of the tactile button (Only with Bio Hydraulic Kit option, not available for BIOCLASS iC 66) Actual mixing heating circuit nº 1 flow temperature. (Only with Bio Hydraulic Kit option, not available for BIOCLASS iC 66) Mixing heating circuit nº...

  • Page 40: Setup Menu

    Time programming of Zone 3. (Only with the Bio Hydraulic Kit and room sensor connected). Boiler timer programming. CVS Suction System timer programming. (CVS Suction System option only) DHW recirculation function timer programming. (DHW tank option only) Time setting. BIOCLASS iC 66...

  • Page 41: Timers Programming Process

    11.6), to avoid a malfunction of the boiler due to premature fouling and a fire. 11.1 Timers programming process BioClass iC 66 boiler allows setting 3 different timers: boiler timer, Fuel suction system timer (if there “Technical is any connected) and DHW recirculation pump timer (if this function is activated on the Menu”)
  • Page 42 When the period desired is selected, change it state by pressing "+" o "-" of DHW . The function will be switched off if symbol is displayed and it will be switched on if symbol is displayed. “Setup menu” After setting all the periods desired, press to save and return to level. BIOCLASS iC 66...

  • Page 43: Heating Time Schedules

    ( ) and set it to “- - - -“ by pressing (18) "-" of the boiler temperature touch button . The timer will be cancelled and DHW recirculation pump will be switched on permanently. BIOCLASS iC 66...

  • Page 44: Time Setting

    Below shows the default number of kilograms at which the boiler notifies you to empty the ash drawer: Modelo BioClass iC 66 6000 kg “Ashtray empty warning”...

  • Page 45: Manual Setting Of Feed Auger Calibration

    11.10 Screen contrast setting "Setup menu" When this parameter of the is displayed, press (19) access and set the value desired by pressing "+" o "-" of DHW The range of values selectable is 1 - 5. BIOCLASS iC 66...

  • Page 46: Calibration Menu

    In the following table are listed all the parameters and processes included in Nº. Parameter Display Feed auger filling Feed auger calibration Manual setting of feed auger calibration Manual ash cleaning activation Manual circulation pumps activation BIOCLASS iC 66...

  • Page 47: Feed Auger Filling

    Follow the steps shown in the following pictures for a correct filling of the feed auger: IMPORTANT: It is compulsory to fill the feed auger during the commissioning or when the hopper runs out of fuel. BIOCLASS iC 66...

  • Page 48: Feed Auger Calibration

    This process must be carried out at least twice to ensure the correct amount of fuel has been added. Follow the steps shown in the following pictures for a correct calibration of the feed auger: IMPORTANT: Calibrate the feed auger during commissioning of the boiler or whenever the fuel supplier has been changed. BIOCLASS iC 66...

  • Page 49: Manual Setting Of Feed Auger Calibration

    20 minutes. By pressing the circulation pumps can be stopped at any time and “Calibration Menu” by pressing RESET it will return to level. BIOCLASS iC 66...

  • Page 50: Technical Menu

    P.02 Minimum boiler heat output (%) P.03 Maximum boiler heat output (%) General fan speed factor (%) P.04 (Visible only with C.01 = 0 or C.01 = 1) P.05 Fuel for ignition (g) P.06 Fuel consumption (kg/h) BIOCLASS iC 66...
  • Page 51 P.09 (DHW tank option only) OTC operating mode (Only with Bio Hydraulic option, not available P.10 for BIOCLASS iC 66) Heating circuit n. 1 K-factor curve (Only with Bio Hydraulic Kit option, not available P.11 for BIOCLASS iC 66) Heating circuit n. 2 K-factor curve (Only with Bio Hydraulic Kit option, not available P.12...
  • Page 52 (P.20 = 3 option only) P.22 Fuel suction system cycle time (s) BIO Hydraulic Kit direct pump operating mode (Only with Bio Hydraulic Kit option, not available P.23 for BIOCLASS iC 66) P.24 Reset default values P.25 Set access code P.26...
  • Page 53 (Only with buffer tank installed) K curve of the direct circuit (Zone 1) (Only with Bio Hydraulic Kit option, not available P.45 for BIOCLASS iC 66) Type of room temperature device in Zone 1 P.46 (Direct circuit) Type of room temperature device in Zone 2 (Mixed circuit 1) P.47...

  • Page 54: Entry And Set The Access Code ("Cod

    Press the "+" o "-" for heating symbols browse trough the digits and press the "+" o "-" for DHW symbols (19) to set each digit. By default, the access code is “1234”. The P.25 parameter allows to set a new access code. BIOCLASS iC 66...

  • Page 55: Boiler's Setup Parameters

    P.01 = 66 => BioClass iC 66 14.2 Boiler heat output (P.02, P.03) BioClass iC 66 boiler is configured to modulate between a minimum and a maximum burner heat output. By means of parameters P.02 and P.03 the minimum and maximum heat output of the burner may be set at desired value.

  • Page 56: Managing Bt And Bt-Duo Buffer Tanks

    DUO buffer tank. This parameter depends on the installation and must be set by the installer once the buffer tank has been assembled. The factory default value is 0, management function of BT buffer tanks disabled. The electronic control of the BioClass iC 66 boiler is able to manage the operation of 4 different types of installation.

  • Page 57: Heating Circuit's Setup Parameters

    15.3 Minimum boiler water pressure (P.19) BioClass iC 66 is equipped with a water pressure sensor that makes possible to know the pressure of the boiler. If the pressure descends below the value set at P.19 parameter, the electronic controller Safety lock-outs locks out the functioning of the boiler and E-19 alarm code is displayed (see “...

  • Page 58: Room Temperature Hysteresis

    Through these parameters it is possible to compensate the temperature measurements differences in the temperature sensors. Selectable range P.51 (zone 1), P.52 (zone 2) and P.53 (zone 3) is -5,0 - +5,0 ºC and the default value is 0,0 ºC. BIOCLASS iC 66...

  • Page 59: Dhw Circuit's Setup Parameters

    16.1 DHW installation mode (P.09) BioClass iC 66 could be set to be connected to a DHW production installation managed by a 3-way DHW diverter valve or by a hot water tank pump. These two operating modes can be selected by means of P.09 parameter:...

  • Page 60: Additional Functions

    BioClass iC 66 boiler includes the following additional control functions. 17.1 Time of the Fuel suction system cycle (P.22) The BioClass iC 66 boiler includes the installation of a Fuel suction system. Using the P.22 parameter, the activation cycle time of the system can be adjusted.

  • Page 61: Room Thermostat Connection

    In turn, when there is a room sensor connected, the boiler's digital display will allow the programming (see "Configuration Menu") of the operating hours of the corresponding circuit , so the heating system can be adapted to the hours of use of the installation. BIOCLASS iC 66...

  • Page 62: Multi-Functional Relay

    18 MULTI-FUNCTIONAL RELAY (P.20) BioClass iC 66 is equipped with an auxiliary relay output that may be used to select a series of additional functions that increase the boiler performance, features and comfort of the installation. “Technical Menu” "multi- Several operating modes may be set at P.20 parameter of the to define the functional relay"...

  • Page 63: Safety Lock-Outs

    This lock-out occurs when the temperature of boiler's water exceeds 110 ºC. To unlock it, wait until the temperature drops below 100 ºC and press the button of the safety thermostat, located underside of the electrical case of the boiler, after having removed the button cover: BIOCLASS iC 66...

  • Page 64: Fuel Entrance Tube Overheat Safety Cut-Out

    Use the drain cock located on the bottom of the backside of the boiler to empty it of water. Before opening it, connect a flexible pipe leaded to a sewer. After finishing the procedure, close the cock and remove de flexible pipe. BIOCLASS iC 66...

  • Page 65: Boiler Maintenance

    22.2 Burner cleaning procedure The BioClass iC 66 boiler has a burner (combustion chamber) where the combustion of the wood pellets takes place. This burner must be cleaned regularly to avoid premature fouling due to the accumulation of slag (solid combustion residues) adhering to the burner walls.
  • Page 66 Dust can also accumulate at the bottom of the hopper, depending on the quality and humidity of the wood pellets. If there is a large quantity of wood pellet dust in the hopper, DOMUSA TEKNIK-s authorised technical assistance service must be contacted for maintenance.

  • Page 67: Heat Exchanger Cleaning Procedure

    22.3 Heat exchanger cleaning procedure The following procedure is recommended for correctly cleaning the heat exchanger: BIOCLASS iC 66...

  • Page 68: Draining The Condensate Water

    The appliance should be visually inspected regularly for any leaks or malfunctions. It is MANDATORY that maintenance operations be carried out by an approved professional from the DOMUSA TEKNIK network, at least once a year on the boiler and twice a year on the flue, according to the standards in force.

  • Page 69: Diagrams And Measurements

    23 DIAGRAMS AND MEASUREMENTS 1470 1360 IC: Heating flow 1 ¼”. RC: Heating return 1 ¼”. SH: Fume outlet. V: Drainage cock. VS: Pressure relief valve, 1/2" F. BIOCLASS iC 66...

  • Page 70: Connections Diagram

    BA: DHW tank pump or DHW valve. J5: LAGO remote control connector. NO: Multi-functional relay. J6: Room thermostat connector. NC: Multi function relay. J7: Sensors connector. : Room thermostat. J12: Fuel suction system power supply Sc: Boiler temperature sensor. connector. BIOCLASS iC 66...

  • Page 71: Burner

    24.2 Burner Qout: Burner outputs connector. Ignition heater. Burner ash cleaning device. Closed switch. Open switch. Qin: Burner inputs connector. Burner switch. Photocell. Ash cleaning device switch. BIOCLASS iC 66...

  • Page 72: Electrical Diagram

    LCD: Display communication connector. Cv: Fan capacitor. J4: Communication connector. SPW: Water pressure sensor. S1, S2: Boiler model DIP-switch. SPA: Air pressure sensor. J1: Power supply connector. Qout: Burner outputs connector. J12: Fuel suction system power supply connector. BIOCLASS iC 66...

  • Page 73: Technical Data

    25 TECHNICAL DATA MODEL BioClass iC 66 Rated heat output (P 66,6 ‫ח‬ Efficiency at maximum heat output % (NCV) 94,9 Minimum heat output (P Efficiency at minimum heat output % (NCV) 95,2 CO at maximum heat output (10% O...
  • Page 74 MODEL BioClass iC 66 Rated heat output (P 66,6 ‫ח‬ Efficiency at maximum heat output (Ƞ % (GCV) 86,9 Minimum heat output (P 20,0 Efficiency at minimum heat output (Ƞ % (GCV) 87,1 Feeding mode Automatic * Condensing boiler Combined boiler Cogeneration boiler Wood pellet Ø6 - 8 mm.

  • Page 75: Alarm Codes

    26 ALARM CODES BioClass iC 66 boiler is equipped with an electronic controller that performs continuous self-testing to 50detect any boiler malfunctioning. When it detects a functioning error, this is indicated by an alarm code on the display. The table below shows the list of the alarm codes:...
  • Page 76 The fuel suction system will lock out. When the Communication error with the Fuel communication is restored the Fuel suction system will be E-26 suction system. unlocked. If this alarm occurs repeatedly contact the nearest official technical assistance service. BIOCLASS iC 66...
  • Page 77 If this alarm occurs repeatedly contact the nearest official technical assistance service. E-39 Insufficient fan speed. Fan malfunction. E-40 Fan speed fall down. If this alarm occurs repeatedly contact the nearest official technical assistance service. E-41 Lasting fan speed fall down. BIOCLASS iC 66...
  • Page 78 Zone 3 TaM room temperature sensor E-61 The Zone 3 room temperature device is broken or open circuit. disconnected. Please contact your nearest official Technical Zone 3 TaM room temperature sensor Assistance Service to have it replaced. E-62 short-circuited. BIOCLASS iC 66...
  • Page 79 The serial number of the boiler has not been registered on the There is no serial number on the iConnect electronic card. E-65 iConnect module. Please contact your nearest Official Technical Assistance Service to correctly register it. BIOCLASS iC 66...
  • Page 80 Bº San Esteban s/n CDOC002101 15/10/21 20730 AZPEITIA 20737 ERREZIL (Gipuzkoa) Telf: (+34) 943 813 899 Fax: (+34) 943 815 666 www.domusateknik.com DOMUSA TEKNIK reserves the right to make modifications of any kind to its product characteristics without prior notice.

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