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Centrometal ZVB II Technical Instructions
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Centrometal ZVB II Technical Instructions

Using of controller for hot water boiler
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Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: +385 40 372 600, fax: +385 40 372 611
ENG
using of CONTROLLER
hot water boiler ZVB II
THE FIRST START-UP MUST BE DONE BY AUTHORIZED
PERSON, OTHERWISE PRODUCT WARRANTY IS NOT
VALID.
TU-R-ZVB-II-9-2024-v1.00g-ENG
H E A T I N G T E C H N I Q U E
H E A T I N G T E C H N I Q U E
TECHNICAL INSTRUCTIONS
You can find the latest technical instructions
for ZVB II by scanning the QR code
or at the web address:
https://www.centrometal.hr/en/portfolio/zvb-ii-eng/
ZVB II
BOOK 2/2

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Summary of Contents for Centrometal ZVB II

  • Page 1 H E A T I N G T E C H N I Q U E H E A T I N G T E C H N I Q U E Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: +385 40 372 600, fax: +385 40 372 611 TECHNICAL INSTRUCTIONS...
  • Page 2 5.8.3.3. TIME SYNCHRONIZATION ..............................59 5.8.3.4. TIME ZONE ....................................59 5.8.3.5. CONNECTION RESET ................................59 INTERNET PORTAL FOR SUPERVISION AND MANAGEMENT ......................59 5.9. CHIMNEY SWEEPER ..................................60 5.9.1. CHIMNEY SWEEPER .................................60 5.9.2. TIME ......................................61 5.9.3. POWER .......................................62 5.X. MAX POWER ....................................62 Technical instructions Controller ZVB II...
  • Page 3 11.1. FEEDER SCREW ..................................74 11.2. FAN ......................................75 12.0. INSTALLATION ...................................75 13.0. MALFUNCTION / IMPROPER BOILER OPERATION .........................76 13.1. SAFETY THERMOSTAT - boiler malfunction ..........................76 OPERATION STAGES (SHOWN ON THE SCREEN) ...........................78 POWER MODULATION PRINCIPLE ..............................79 Technical instructions Controller ZVB II...
  • Page 4 "Firmware update". This setting should be used only by authorized technician. If this happens, it is necessary to switch off "Main switch (0/1)" and switch it on again without touching the screen. Technical instructions Controller ZVB II...
  • Page 5 Shortcuts to Menu Current Errors (Boiler ON/OFF) different screens button boiler (Main screen (ZVB-OE), status Boiler screen (ZVB-KE), (operation Accumulation (buffer) stages) tank screen (ZVB-PE)...) 20.0°C Main screen - Schematic view (ZVB-OE) Main screen (ZVB-OE) Technical instructions Controller ZVB II...
  • Page 6 Shortcut to the previous menu BACK button Menu with submenus Menu without submenus Menu button There are 9 to 12 menus in total (depending on the selected configuration). Technical instructions Controller ZVB II...
  • Page 7 "Main screen (ZVB-OE)" button 20.0°C 20.0°C 20.0°C Main screen - Schematic view (ZVB-OE) Main screen (ZVB-OE) Boiler screen (ZVB-KE) Accumulation (buffer) tank screen (ZVB-PE) Domestic hot water (DHW) tank screen (ZVB-SE) Technical instructions Controller ZVB II...
  • Page 8 flow temperature is pressed) 15 - Room thermostat / Reg. control (thermostat that switches the heating circuit pump on/off) *The symbols will be shown only if corrector is selected in the heating circuit. Technical instructions Controller ZVB II...
  • Page 9 13 - Electric heater symbol (when operating, the symbol changes color) 14 - Burner grate 15 - Boiler pump 16 - Feeder screw symbol (when operating, the symbol moves) 17 - Time till service 18 - Boiler operating time Technical instructions Controller ZVB II...
  • Page 10 Symbols on the boiler screen (ZVB-KE) Flame symbol There is no flame There is a flame in the boiler in the boiler The option is disabled The option is enabled Technical instructions Controller ZVB II...
  • Page 11 Hidraulic crossover the tank 65°C The symbol appears only if recirculation exists in the configuration and if the authorized service technician has switched it on in the Installation menu (option "Recirculation installed"). Technical instructions Controller ZVB II...
  • Page 12 Changing/entering parameters CHANGING / ENTERING PARAMETERS Drag the slider button / press the button to increase/decrease the value Keyboard: Value entry Button for multiplication change (left / right) x1, x10, x100 Technical instructions Controller ZVB II...
  • Page 13 After turning on the option, it is necessary to clean the boiler (described in the Technical instructions - boiler ZVB II). To turn off the fan (after cleaning), it is necessary to press the "OFF" button (3) (the same will happen if the "BACK" button (4) is pressed).
  • Page 14 Filling can be stopped by pressing the ''STOP'' (5) or ''BACK button'' (6). 1.3. AIRVENT By entering the ''Airvent'' submenu and by pressing ''ON'' button (1) next to a pump symbol, the pump starts operating. By pressing the ''OFF'' button (2), the pump stops. Technical instructions Controller ZVB II...
  • Page 15 5 - Temperature sensor (DOWN) - accumulation 3 - Outdoor temperature sensor (buffer) tank 6 - Temperature sensor ((K1) Heating circuit 1 - main flow) 7 - Room corrector CSK ((K1) Heating circuit 1) / CSK-Touch (additional equipment) Technical instructions Controller ZVB II...
  • Page 16 3 units "CM2K module for regulation of 2 heating circuits". If one of the CM2K circuits is configured as DHW, this will affect the determination of the Maximum boiler temperature and a message about this will be shown after pressing "Maximum boiler temperature". Technical instructions Controller ZVB II...
  • Page 17 2. Maximum boiler temperature (manual entry) 3 / 15 °C 3. Boiler difference *By turning on the "Chimney sweeper" option, the "Maximum boiler temperature" is automatically set to 85 °C. By turning off the "Chimney sweeper" option, this condition ceases. Technical instructions Controller ZVB II...
  • Page 18 **Example of maximum boiler temperature setting: Configuration 2. 1. (DHW Temperature) < 65 °C: (pump (P1) START + boiler difference + 5 °C) (pump (P1) START + boiler difference + 5 °C) 2. (DHW Temperature) >/= 65 °C Technical instructions Controller ZVB II...
  • Page 19 2. (DHW Temperature + 5 °C) > Maximum boiler temperature (manual entry): Note, Configuration 23: in these configuration, it is possible to connect up to 3 units "CM2K module for regulation of 2 heating circuits". Technical instructions Controller ZVB II...
  • Page 20 **Example of maximum boiler temperature setting: Configuration 13 1. Buffer tank temperature set to >/= 65 °C: 1a. Buffer tank temperature set to >/= DHW set temperature 1b. Buffer tank temperature set to < DHW set temperature Technical instructions Controller ZVB II...
  • Page 21 2a. Buffer tank temperature set to >/= DHW set temperature 2b. Buffer tank temperature set to < DHW set temperature Note, in these configurations, it is possible to connect up to 3 units "CM2K module for regulation of 2 heating circuits". Technical instructions Controller ZVB II...
  • Page 22 5 °C. - calculated automatically (see **Example of maximum boiler temperature setting: Configuration 21). Boiler difference = Boiler temperature difference **Example of maximum boiler temperature setting: Configuration 21. 1. (DHW Temperature) < 65 °C: Technical instructions Controller ZVB II...
  • Page 23 If one of the CM2K circuits is configured as a heating circuit or the authorized technician has activated the "And another heating controller" option, this will affect the determination of the maximum boiler temperature (Max. boiler temperature (manual entry), and a message about that will be shown by pressing "Maximum boiler temperature". Technical instructions Controller ZVB II...
  • Page 24 (DOWN) sensor) is smaller than the set value "Stop buffer tank difference", the request for heating of the buffer tank is interrupted (the buffer tank pump does not require operation). **Example of maximum boiler temperature setting: Configuration 4. 1. Buffer tank temperature set to >/= 65 °C: Technical instructions Controller ZVB II...
  • Page 25 2. Buffer tank temperature set to <65 °C: Note, Configuration: 4, 5, 6, 7, 8, 9, 10, 11, 12. in these configurations, it is possible to connect up to 3 units "CM2K module for regulation of 2 heating circuits". Technical instructions Controller ZVB II...
  • Page 26 The way of changing the set temperature: - example of changing the default Buffer tank temperature Possible min/max values, factory value and the reasons (descriptions) for some restrictions: Example: Configuration 10, Example: Configuration 12, Buffer tank temperature DHW temperature Technical instructions Controller ZVB II...
  • Page 27 Technical Instructions. Factory: Min/Max Unit 0 / 40 °C 1. Outdoor temperature 2 / 10 °C 2. Outdoor temperature difference 0 / 10080 3. Time (Heating OFF) 0 / 10080 3. Time (Heating ON) Technical instructions Controller ZVB II...
  • Page 28 Table 3 - Table 3 is activated and boiler works according to the settings in Table 3 Example of Table 1 activation. The icon indicates that the "Boiler schedule" is activated (example: Table 1 is activated). Technical instructions Controller ZVB II...
  • Page 29 6:00 p.m. and from 7:00 p.m. to 10:00 p.m. In the periods from 00:00 to 4:59 a.m., from 9:16 a.m. to 1:59 p.m., from 6:01 p.m. to 6:59 p.m. and from 10:01 p.m. to 11:59 p.m. the boiler will not operate. The schedule for Monday is copied to Tuesday, Wednesday, Thursday and Friday. Technical instructions Controller ZVB II...
  • Page 30 "Fuel level" operates when there is no additional equipment - "Pellet level sensor CMSR-100" and "Screw refill". When "Screw refill" is turned on, "Fuel level" disappears automatically. "Screw refill" and "Pellet level sensor CMSR-100" operate together. Technical instructions Controller ZVB II...
  • Page 31 Heating circuit NOTE: All displayed menus are based on configuration 15. 3.0. HEATING CIRCUIT In certain configurations, the menus will be different (with or without the Heating circuit/Domestic hot water menu). Technical instructions Controller ZVB II...
  • Page 32 CSK is placed in a part of the room that is for Measurement correction - Corrector -5.0 / 5.0 °C some reason warmer or colder than the rest of the room) *** Only displayed if the corrector (CSK (2 wires or 3 wires)) is ON. Technical instructions Controller ZVB II...
  • Page 33 * Not displayed when a constant temperature (Heating type) is selected and the corrector is OFF. ** Only displayed if a constant temperature (Heating type) is selected. *** Only displayed if the corrector (CSK (2 wires or 3 wires)) is ON. Technical instructions Controller ZVB II...
  • Page 34 Day temperature - the heating circuit operates according to the set Day temperature Night temperature - the heating circuit operates according to the set Night temperature Table 1/Table 2 - automatically switches between day and night temperatures which are set in the table Technical instructions Controller ZVB II...
  • Page 35 1:31 p.m to 3:14 p.m., 4:16 p.m. to 7:44 p.m. The schedule for Monday is copied to Tuesday. Other days have set Night room temperature mode from 00:00 to 5:59 a.m., 10:01 p.m. to 11:59 p.m. and Day room temperature mode from 6:01 a.m. to 10:00 p.m. Technical instructions Controller ZVB II...
  • Page 36 Heating curve 3.8. HEATING CURVE Setting of the heating curve. Heating curve is one of the parameters for main flow temperature calculation. Coefficient Outdoor temperature Technical instructions Controller ZVB II...
  • Page 37 *Displayed only if the authorized service technician (in the Installation menu) has switched on the option "Recirculation installed". When the option is switched on, on the "Main screen - Schematic view (ZVB-OE)" will be displayed the recirculation symbol. Technical instructions Controller ZVB II...
  • Page 38 *Displayed only if the authorized service technician (in the Installation menu) has switched on the option "Recirculation installed". When the option is switched on, on the "Main screen - Schematic view (ZVB-OE)" will be displayed the recirculation symbol. Technical instructions Controller ZVB II...
  • Page 39 *Displayed only if the authorized service technician (in the Installation menu) has switched on the option "Recirculation installed". When the option is switched on, on the "Main screen - Schematic view (ZVB-OE)" will be displayed the recirculation symbol. Technical instructions Controller ZVB II...
  • Page 40 Submenu 5.1. DHW / Heating is only displayed if the configuration with Domestic hot water (DHW) is selected. Factory: DHW+Heating Possible selection: DHW+Heating, DHW only, Heating only, Auto DHW+Heating - the boiler operates as needed for heating or for domestic hot water (DHW). Technical instructions Controller ZVB II...
  • Page 41 Heating only - boiler operates only when there is demand for heating. Auto - boiler switches automatically between DHW+Heating and DHW only operating mode. Example: factory setting of Outdoor temperature, Outdoor temperature difference, Time (Heating OFF), Time (Heating ON) Technical instructions Controller ZVB II...
  • Page 42 DHW / Heating If the outdoor temperature is >/= 20 °C for more than 30 minutes. If the outdoor temperature is <(20-3) °C for more than 30 minutes. Technical instructions Controller ZVB II...
  • Page 43 Possible choice: ON, OFF Current: OFF Current: ON If the option is active, the domestic hot water (DHW) icon changes color from white to red and changes position in the top bar of the screen. Technical instructions Controller ZVB II...
  • Page 44 DHW is managed by another regulation independent of the boiler regulation. When this option is activated, the authorized technician cannot adjust the boiler to maintain the temperature required by the installation (see "Boiler temperature maintenance"). Technical instructions Controller ZVB II...
  • Page 45 Note: By turning on the "Chimney sweeper" option, the controller is automatically set to "Boiler temperature maintenance: Boiler" and this menu disappears. By turning off the "Chimney sweeper" option, everything returns to its previous state. Technical instructions Controller ZVB II...
  • Page 46 Parts of the boiler that can be tested manually: 1 - Fan 2 - Electric heater 3 - Feeder screw 4 - Screw refill (additional equipment) 5 - Pumps (Px) 6 - 3-way mixing valve Technical instructions Controller ZVB II...
  • Page 47 Fan speed: 800 rpm - fan speed must be 800 rpm Fan speed: 1200 rpm - fan speed must be 1200 rpm Fan speed: 1800 rpm - fan speed must be 1800 rpm Fan speed: MAX - the fan speed must be on maximum Technical instructions Controller ZVB II...
  • Page 48 Press the "ON" button next to the "Feeder screw" and check if operates. Every time you press the "ON" button, it lights up green. When the option is active, an animation of the pellet feeder screw will be displayed on the screen. After pressing the "OFF" button the feeder screw will stop operating. Technical instructions Controller ZVB II...
  • Page 49 "ON" button next to the corresponding symbol and check if the valve is open/closed or if the pump is operating. Every time you press the "ON" button, it lights up green. After pressing the "OFF" button, the valve/pump will stop operating. 70.0°C 62.0°C Pump! 70.0°C 62.0°C Open! 70.0°C 62.0°C Close! Technical instructions Controller ZVB II...
  • Page 50 Every time you press the "ON" button, it lights up green. After pressing the "OFF" button, the valve/pump will stop operating. 70.0°C 62.0°C Pump! 70.0°C Open! 70.0°C 62.0°C Close! Technical instructions Controller ZVB II...
  • Page 51 If currently weighed amount of pellets is 30 % more/less than the ''Last weighing'', it is necessary to call the service technician to adjust the boiler controller. Technical instructions Controller ZVB II...
  • Page 52 NOTE: The boiler must be connected to the power supply and ''Main Switch (0/1)'' must be switched on, for this function to be active. 5.6.1. PUMPS & MIXING VALVE PROTECTION This option enables activation/deactivation of pumps and valves protection. Factory: ON Possible selection: ON, OFF 5.6.2. TIME Technical instructions Controller ZVB II...
  • Page 53 5.7.1. FREEZE GUARD Possibility of activating or deactivating of the ''Freeze guard'' option. When this option is activated, a snowflake icon appears on the top bar of the screen. Factory: OFF Possible selection: ON, OFF Technical instructions Controller ZVB II...
  • Page 54 Possible selection: 1. Boiler, 2. (K0), 3. (K1), 4. (K2) 5.7.4. TEMPERATURES This option allows setting the minimal sensor temperature and minimal sensor difference, as well as the minimal outdoor temperature at which the ''Freeze Guard'' option will be activated. Technical instructions Controller ZVB II...
  • Page 55 Possible selection: 2 - 15 °C (set by an authorized technician) 5.7.4.3. MINIMAL OUTDOOR TEMPERATURE Setting the outdoor temperature at which the ''Freeze guard'' option will be activated. Factory: 0 °C Possible selection: -5 - 5 °C Technical instructions Controller ZVB II...
  • Page 56 Internet supervision. The controller is connected to the web portal. (Internet supervision is possible) The controller is not connected to the web portal. (Internet supervision is not possible) Technical instructions Controller ZVB II...
  • Page 57 "JOIN", enter the password if necessary and confirm with the "OK" button. If you want to disconnect from a Wi-Fi network, press the button "DISCONNECT". 5.8.2. INTERNET SUPERVISION This option is used to set and enable/disable "Internet Supervision". Factory: Supervision+control Possible selection: OFF, Supervision,Supervision+control Technical instructions Controller ZVB II...
  • Page 58 This option allows entering a password for the local Wi-Fi network. The correct password for the local Wi-Fi network must be entered, otherwise the boiler will not be able to connect to the Wi-Fi network. Technical instructions Controller ZVB II...
  • Page 59 (WiFi ID). You can see the registration procedure on the video instructions. Please scan QR code with your smartphone or open web page from link below. https://portal.centrometal.hr Technical instructions Controller ZVB II...
  • Page 60 Flue gas measurement performed while the counter is even briefly red is not valid. Factory: OFF Possible selection: ON, OFF Technical instructions Controller ZVB II...
  • Page 61 Period of time during which the boiler operates at the chosen power (D5/D2). After this time, the text on the counter turns green and only then you can start measuring flue gases. Factory: 600s Possible selection: 600-3600s Technical instructions Controller ZVB II...
  • Page 62 PIN menu). 5.X. MAX POWER The option allows the user to set the maximum boiler power at which the boiler can operate. Factory: 4. D5 Possible selection: 1. D2, 2. D3, 3. D4, 4. D5 Technical instructions Controller ZVB II...
  • Page 63 Possible causes: Interruption on el. connections between ERROR sensor and boiler, connection to the boiler, cold connection or invalid sensor. Boiler status: Remaining in the OFF phase. UNKNOWN Possible causes: Unknown software, incorrect software BOILER POWER configuration. Technical instructions Controller ZVB II...
  • Page 64 Boiler status: Boiler immediately goes to phase OFF. Possible causes: Interruption on el. connections between FUEL SENSOR sensor and boiler, connection to the boiler, cold connection or invalid fuel sensor. Technical instructions Controller ZVB II...
  • Page 65 ON, error E48 will not appear, only warning W9 will appear. When error E48 appears, the boiler goes into the shutdown phase S7 (S7-1). Troubleshooting: It is necessary to replace the battery of the 7" screen (CR 1632) Technical instructions Controller ZVB II...
  • Page 66 CORRECTOR CIRCUIT K1 E30.1 if embedded. CORRECTOR CM2K C1 CIRCUIT E30.3 CORRECTOR CM2K C2 CIRCUIT E30.4 CORRECTOR CM2K C3 CIRCUIT E30.5 CORRECTOR CM2K C4 CIRCUIT E30.6 CORRECTOR CM2K C5 CIRCUIT E30.7 CORRECTOR CM2K C6 CIRCUIT E30.8 Technical instructions Controller ZVB II...
  • Page 67 Power outage during the operation of the boiler for less than 30 seconds, after the return of electricity, the boiler SHORT POWER continued to operate in the operation phase, in which it was FAILURE/ARRIVAL at the time of the power outage. Technical instructions Controller ZVB II...
  • Page 68 Software information (Boiler power, Software version, Wi-Fi ID, Active file, MB). (The active file can be a user (USR) or service (SRV) file that is selected in the File menu by user or authorized service technician). «USR:test2" Technical instructions Controller ZVB II...
  • Page 69 9.0. FILE 9.1. OPEN SERVICE FILE After pressing ''Open service file'', it is possible to choose and open the service file (press the ''Open'' button). Press the ''Cancel'' button to return to the submenu. Technical instructions Controller ZVB II...
  • Page 70 (selected) is marked with a green tick. 1a - Example if service technician did not save the user file. Odustani Spremi korisničku datoteku 1b - Example of saving a user file under a different name. Spremi korisničku datoteku Odustani Spremi kao Technical instructions Controller ZVB II...
  • Page 71 (selected) is marked with a green tick. Example when multiple user files are saved and when was made a change in the active (selected) file. Otvori korisničku datoteku Odustani Active file (selected) is showed in menu 8.1. Software info. «USR:test1" "USR:test1" Technical instructions Controller ZVB II...
  • Page 72 If the screen is not pressed within the set time, the screensaver will be activated to protect the screen against screen burn. When the screen is touched, the screensaver will turn off. Factory: 600 s Possible selection: 10-3600 s Technical instructions Controller ZVB II...
  • Page 73 Possible selection: OFF, Volume 1, Volume 2, Volume 3 10.5. SOUND TYPE This option is used to set sound type. It is possible to choose between 10 different types of sounds. Factory: Type 3 Possible selection: Type 1 - Type 10 Technical instructions Controller ZVB II...
  • Page 74 Option "Correction" is used to correct the operation of the feeder screw and fan by +/- 30%. 11.1. FEEDER SCREW Option is used to correct the operation of the feeder screw. Factory: 0% Possible selection: -30/ +30% Technical instructions Controller ZVB II...
  • Page 75 Fan, Installation 11.2. FAN Option is used to correct the operation of the fan (rpm of the fan). Factory: 0% Possible selection: -30/ +30% 12.0. INSTALLATION MENU FOR AUTHORIZED SERVICE TECHNICIANS ONLY. Technical instructions Controller ZVB II...
  • Page 76 - if the same problem occurs again during the first next boiler firing or if it occurs frequently, ask an advice from the authorized technician. Figure: Safety thermostat Back view Detail A Safety Unscrew thermostat and take (STB) off the lid Detail B Press Main switch (0/1) (ON/OFF el. power supply of boiler) Technical instructions Controller ZVB II...
  • Page 77 1.481 2.328 536,2 1.501 2.348 458,8 1.520 2.367 394,3 1.539 2.386 340,0 1.558 2.405 294,3 1.578 2.425 255,6 1.597 2.444 222,7 1.161 2.463 190,7 1.635 2.482 170,8 1.655 2.502 150,5 1.674 2.521 1.693 2.540 1.712 Technical instructions Controller ZVB II...
  • Page 78 Shutdown stage – power outage (occurs only if the option "Power failure - continued operation" is enabled) "Shutdown stage" after a power outage for more than 30 seconds, after the set time it goes to phase S0 (if it has a demand for operation) or phase OFF. Technical instructions Controller ZVB II...
  • Page 79 Tk - measured water temperature in the boiler D0…D5, S7-1 - operating phases Modulation - power increase: D0==>D1 (Tk=Tkmax – 1,0°C), D1==>D2 (Tk=Tkmax – 2,0°C), D2==>D3 (Tk=Tkmax – 3,0°C), D3==>D4 (Tk=Tkmax – 4,0°C), D4==>D5 (Tk=Tkmax - 5,0°C) Technical instructions Controller ZVB II...
  • Page 80 Company assumes no responsibility for possible inaccuracies in this book originated typographical errors or rewriting, all figures and diagrams are principal and it is necessary to adjust each actual situation on the field, in any case the company reserves the right to enter their own products such modifications as considered necessary. Centrometal d.o.o. Glavna 12, 40306 Macinec, Croatia www.centrometal.hr central tel: +385 40 372 600, fax: +385 40 372 611 e-mail: servis@centrometal.hr...

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