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Installation
Guide
EOS 8
©2025

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Summary of Contents for Brunner EOS 8

  • Page 1 Installation Guide EOS 8 ©2025...
  • Page 2 CONTENTS Safety precautions............4 Delivery contents............5 System description............6 System diagrams............9 Dimensions..............14 Connections..............15 Installation of the EOS 8..........23 Encoding of the actuators.......... 29 Connection of damper flap.........30 Generalities on installation.........31 Calibrating flaps on EOS..........37 Commissioning............39 Configuring EOS............42 13.1 Configuration of WLAN access..........52 PIN number to access the Settings......
  • Page 3 © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 4 Before opening the electronics, switch off the power supply (switch off the emergency switch or circuit breaker, and secure them against switching on again!) Be careful when working on valves and sliding mechanisms. Danger of squeezing! Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 5 DELIVERY CONTENTS The EOS 8 is a combustion control device, which can, in different stages of instal- lation development, control the combustion air of a heater for a tiled stove or fire- place, or adjust the burn-up and control the entire system, including the hot water production and the switching valves.
  • Page 6 In connection with a BHZ, for example, it is possible to operate the complete system comfortably from one place. It is possible to connect extra displays to the EOS 8. In this case, the heating sys- tem can be operated from each connected display. If further systems, like BHZ for example, are using the data bus technology, then the entire system can be op- erated from each connected display.
  • Page 7 In the lower navigation bar on the right, the current date and time are displayed. In the same navigation bar, the different applications (EOS 8, BHZ, etc.) can be selected if available. In the field between the two navigation bars, the different menus, diagrams, infor- mations etc.
  • Page 8 Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 9 SYSTEM DIAGRAMS Illustration 2: EOS 8 with flue gas switchover © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 10 Illustration 3: EOS 8 with boiler technology and buffer storage Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 11 Illustration 4: EOS 8 with damper flap © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 12 Illustration 5: EOS 8 with boiler technology and pump assembly Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 13 HS-Air control push rod PT 1000 Buffer sensor middle or top Induced draught fan at the PT 1000 Buffer sensor center or chimney head Moritz damper PT1000 boiler sensor BHZ Thermowire © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 14 In the picture on the left – the wall mount box, and on the right a represen- tation of the installed wall mount box with the EOS 8 display unit. Illustration 6: Wall mount box and the EOS 7 display unit...
  • Page 15 CONNECTIONS Connections on the EOS -7/-8 control unit © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 16 Con- Ter- Cable Function nector minal color gray Connecting cable for the EOS 8 display unit yellow Data cable green white Connecting cable for the EOS 8 display unit Power supply brown Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 17 Connection of the sensor T6 (PT1000) (buffer top or mid or room temperature sensor) brown white Connection of the sensor T8 (PT1000) (buffer top or mid or outdoor temperature sensor) brown © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 18 8A - see brown also chapter “Connection of a pump to the relay out- put PR1” blue green/yel- Mains Connection for the 230 V / 50 Hz power supply brown blue Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 19 F 15 Fuse Relais A1, M2, PR1; T 6,3 A The control unit of the EOS 8 can be installed in a standard wall mount box. In this case, the cables should be kept short inside the wall mount box on connectors side. There’s little room for cables in the standard wall mount box.
  • Page 20 Connections on the EOS 8 display unit Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 21 Con- Terminal Cable color Function nector 12.1 gray Connecting cable for the EOS 8 control unit 12.2 yellow Data cable 12.3 green Connecting cable for the EOS 8 control 13.1 white unit 13.2 brown power supply Network Connection to a home network USB interface for updates ©...
  • Page 22 Hydraulic diagrams and the relevant wiring diagrams can be found in the BRUNNER Hydraulic Manual: The BRUNNER Hydraulic Manual is currently in the craftsmen's area at: https://www.brunner.de BRUNNER Hydraulic Manu- al 2020: https://www.brun- ner.de/11596 BRUNNER Hydraulic Manu- al 2022: https://www.brun- ner.de/11597...
  • Page 23 INSTALLATION OF THE EOS 8 The EOS 8 always consists of a control unit and a display unit. Both units are necessary; however, further display units can be attached at any time, e.g. for op- eration from another room. Each unit can be installed separately in a standard wall mount box. When all con- nectors in the control unit are used, there is not much space left for excessive ca- ble length in the standard wall mount box;...
  • Page 24 Illustration 7: Gap between wall and box. glass front If the gap between wall and glass front is too small, the EOS 8 display unit can- not be removed from the wall mount box. Attention distance Installation Guide EOS 8 (1.15)
  • Page 25 (e.g. wall mount box for EOSR5), washers must be put between the holes and the assembly rails so that the assembly rails do not bend. © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 26 To remove the EOS 8 display unit, insert the provided tool between the wall and the glass front and release the lock with light pressure. ATTENTION: Do not use force. The plastic catch links may not break off. A re- placement can only be supplied including the glass front.
  • Page 27 The air control valve motor is used to adjust the combustion air volume. The air control valve is connected to the heating insert by means of an aluminum flexible hose. Observe the maximum permitted ambient temperature of 60°C. © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 28 EOS 8 control unit. Here the data cable is provided with a connector and connected. The motor has two plug-in contacts. For the EOS only one is needed.
  • Page 29 ENCODING OF THE ACTUATORS Jumper placement with K1 and K2: K1 for combustion air intake flap © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 30 The servomotor is connected to the air intake actuator K1 and included in the EAS/EOS control system. Illustration 14: Damper flap actuator Illustration 13: Air intake flap actuator K1 Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 31 Please note The electronics of the EOS 8 is prepared for connection to a wide selection of heaters and fireplace inserts. Before start-up, the electronics should be adjusted to the available heater and the desired auxiliary functions must be configured.
  • Page 32 If possible, avoid installation of electronic components in exterior walls to prevent risk of • corrosion at temperatures below dew point. Do not install the EOS 8 control and display units into the heated outer lining of the • stove.
  • Page 33 The temperature stability of the thermocouple cable (green) is 180°C. The tem- perature stability of the plug is 105°C. Make sure that the thermocouple cable does not rest on the hot flue gas outlet. © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 34 30m. Connecting cable K1 - K2 damper flap The K1 - K2 connecting cable serves for data exchange between the EOS 8 elec- tronics and the damper flap motor K2 and the power supply to K2. The data cable is equipped on both sides with a 5-pin plug to connect the cable to K1 and K2.
  • Page 35 Door switch wiring The door contact switch cable communicates the position of the firing door to the EOS 8 electronics. With the plug provided on one side, the cable is connected to the door switch sensor. The door switch cable must be led through an electrical conduit pipe to the wall mount box of the EOS -7/-8 control unit, where it has to be connected.
  • Page 36 The maximum permissible ambient temperature of the cables is 70°C Connection of the BHZ, EWP etc. to the EOS 8 If additional devices are connected to the EOS 8, the connection is always made with data or connecting cables. The order of the devices is not important. Dedicat- ed cables are to be used.
  • Page 37 - Switch the EOS power supply on. - Go to Settings and enter access code 0001. - Tap on System(= Anlage). - Tap on Relay test (=Relaistest). -> Drive turns to 100% OPEN (=AUF). © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 38 - Tap OK to confirm; the new CLOSED position is stored and the Service menu is closed. EOS is ready for operation.. For information: By tapping the Default button in Calibration window you can reset the K2 calibration to factory defaults. Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 39 Date setting install myBrunner Configuration of heating sources, con- troller boards of EOS or Natural Power boiler Configuration of heating system / heat management (BHZ, EWP, buffer con- trol board) Service address © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 40 The EOS goes through a starting and initialization phase. The progress is indi- cated under the BRUNNER logo as a red bar. Once the graphic user interface is loaded and displayed, the data of the connected components (control unit, BHZ, etc.) are read.
  • Page 41 © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 42 Architektur-Kamin 38/86 k Architektur-Kamin 38/86 Tunnel Architektur-Kamin 38/86 Boiler Architektur-Kamin 38/86 with Top-mount boiler Architektur Kamin 38/86/36 Architektur Kamin corner 38/86/36 Architektur Kamin 45/101 Architektur Kamin 45/101 Architektur Kamin 45/101 k Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 43 GOT flat 44/55-ZL GOT flat 51/55 GOT flat 51/55-ZL GOT flat 51/67 GOT flat 51/67-ZL GOT flat 52/37 GOT flat 52/37-ZL GOT flat 57/67 GOT flat 57/67-ZL GOT flat 45/101 GOT flat 45/101-ZL © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 44 HF15 HF 15 HF 5 HF 7 HKD 2.2 HKD 2.2 HKD 2.2 Tunnel HKD 2.2 Tunnel HKD 2.2 XL HKD 2.2 XL HKD 2.2 XL Tunnel HKD 2.2 XL Tunnel Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 45 HKD 6 HKD 7 HKD7 HKD 7 Tunnel HKD7 SK HKD 7 SK HKD7 SK Tunnel HKD 7 SK Tunnel HKD 8 HKD8 HKD 8 Tunnel HKD 9 HKD9 HKD 9 Tunnel © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 46 Panorama 42/42/42/42 Panorama-Kamin 42/42/42/42 Panorama 51/25/101/25 Panorama-Kamin 51/25/101/25 Panorama 51/66/50/66 Panorama-Kamin 51/66/50/66 Panorama 51/88/50/88 Panorama-Kamin 51/88/50/88 Panorama 57/25/60/25 Panorama-Kamin 57/25/60/25 Panorama 57/25/85/25 Panorama-Kamin 57/25/85/25 Panorama 57/25/121/25 Panorama-Kamin 57/25/121/25 Panorama 57/40/60/40 Panorama-Kamin 57/40/60/40 Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 47 Stove and Water can be accessed directly by selecting OK/Next. The basic parameters for the stove system function are set in the Service menu only once. Normally, these parameters are not changed during continued opera- tion. © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 48 For all functions of A4 relay - after the relay switches once, no further switching of A4 relay is possible, until A4_runout time is passed. Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 49 T2 sensor is present Position T2 Boiler sensor T2 by boiler sensor with BHZ 3.0 no T4 sensor is present Buffer bot- T4 buffer bottom sensor Position T4 Buffer mid- T4 buffer mid sensor © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 50 T4 is lower by delta_T2_T4 + T2. with BHZ The pump is controlled by BHZ. T2+EWP The pump is controlled by EOS. EWP Ba- B/BHZ* (*BHZ - application-HT). sis or Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 51 Hint: Under item Settings / System / Create Backup you can save the settings on a USB memory. Under Retrieve Backup you can retrieve a previously saved parameter set. © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 52 When the connection is successfully es- tablished, the view displays a valid IP ad- dress and a status field with “WLAN ac- tive” with a valid signal strength and its rating. (Fig.3) Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 53 The access to parameter setting levels is protected by a PIN number. Tap on: Settings and this window will appear: Info PIN code for the stove fitter: 0001 PIN code for the user of the stove: 9999 © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 54 Used to perform updates in the control system. To perform an up- date, follow the instructions in chapter “Software Update” Network to define the network settings my Brunner Activate or deactivate your BRUNNER account. Settings logout You can logout here Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 55 Factory settings testing sequence for connected actuators Relay test Reset of heating output counts Reset outputs Configuration see chapter “Configuration” Firebox parameters Settings / Firebox parameters : © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 56 Temperature for start of damper flap operation °C on device dPplus%K2 Depends control step for increasing damper flap opening on device dPminus%K2 Depends control step for reducing damper flap opening on device Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 57 (T4) is below T2 by dT T2-T4 (only when func- tion PR1 = T2-T4). The boiler pump PR1 is switched off, when the boiler tem- PR1 T2 Off °C perature (T2) is below PR1 T2 Off set value. © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 58 When this period is exceeded, the message will disappear. If during period Glow time the temperature falls be- Glow temp °C low Glow temp - the “Glow” message will disappear. Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 59 Both contacts of the door switch sensor must indicate Door error sec. the correct status within the Door error time period. If this is not the case, an error message is displayed. © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 60 Example: connected EOS, to be displayed on this control unit: = the installed = the installed EOS will not be EOS will be vis- visible on this ible on this par- particular dis- ticular display. play. Installation Guide EOS 8 (1.15) © 2025 Brunner GmbH...
  • Page 61 How often wood was reloaded within Phases Reload Reloading counter from 2 to 4 Heat up er- How often a heat up error was detected when Heat up error counter lighting a fire. © 2025 Brunner GmbH Installation Guide EOS 8 (1.15)
  • Page 62 How often the threshold value was exceeded. CHANGING THE BATTERY If the message “Change battery”, appears on the display, please replace the 9 Volt block battery in the EOS 8 control unit. Note Every time the control unit is discon-...
  • Page 63 DISPOSAL Please follow the applicable national regula- tions for disposal. The Ulrich Brunner GmbH is listed in the EAR- Foundation under the WEEE-Nr. DE75509764. FUSES AND PLUGS Brun- plug plug Brunner Function Pole Function Pole color color Art.Nr. Art.Nr. power supply...
  • Page 64 T6,3A 250V 02550 REMOTE ACCESS TO BRUNNER HEATING For the Registration process on BRUNNER Touch Display and in the Internet see: https://www.mybrunner.de/Home/Info NOTE The initial setup of the system is performed on the Touch Display and on www.mybrunner.de in parallel, in several steps. Therefore, you should have a suitable device with Internet access (e.g.
  • Page 65 (digital or analog clock) selected as the screen saver. The disabled time alignment is displayed with a gray box. The adjustment of the time or date with the Brunner network can be activated at any time. © 2025 Brunner GmbH...
  • Page 66 Ulrich Brunner GmbH BRUNNER products are offered and sold exclusively by quali- fied dealers and service centres. Zellhuber Ring 17-18 Technical and range-related changes as well as errors re- D-84307 Eggenfelden served. All images may contain additional functions or special equip- Tel.: +49 (0) 8721/771-0...