Product overview
The YOBIIQ BC supports several boiler and heating-system interfaces: OpenTherm, on/off control, 0–10 V modulation and RS485 Modbus communication. Use the interface supported by the connected boiler or equipment. OpenTherm installations can report supported temperatures and status, accept supported setpoint changes and use internal heating-curve, room-temperature-compensation and dewpoint-protection functions.
The controller can work with or without an OpenTherm thermostat and can operate locally as a standalone device. A relay output provides on/off control, the 0–10 V analog output supports modulating control, and RS485 Modbus provides wired communication with compatible equipment such as heat pumps. LoRaWAN adds remote reporting and configuration. Available measurements and commands depend on the selected interface and connected equipment.
Why choose the iQ Boiler Controller?
| Capability | Benefit |
|---|
| Multiple heating interfaces | Select OpenTherm, on/off, 0–10 V or RS485 Modbus to match compatible boilers and heating equipment. |
| OpenTherm boiler and thermostat connection | Connect supported OpenTherm equipment with or without a separate OpenTherm thermostat. |
| On/off relay control | Switch compatible boiler or heating-system inputs using the relay output. |
| 0–10 V modulation | Provide an analog control signal to compatible modulating equipment. |
| RS485 Modbus communication | Exchange data and control commands with compatible Modbus equipment, including supported heat pumps. |
| LoRaWAN monitoring and configuration | Add remote reporting and configuration where supported by the selected installation. |
| Internal heating functions | Use a heating curve, room-temperature compensation or dewpoint protection where applicable. |
Applications
| Application | Example uses |
|---|
| Building heating | Adjust heating setpoints to suit occupancy and operation. |
| Boiler service | Review supported status and fault information remotely. |
| OpenTherm boiler control | Monitor and control supported boiler functions, with or without an OpenTherm thermostat. |
| Standard on/off boiler control | Switch compatible boiler inputs through the relay output. |
| Modulating boiler control | Send a 0–10 V signal to compatible equipment that accepts analog modulation. |
| Heat pump integration | Communicate with compatible heat pumps over RS485 Modbus. |
| Building-management integration | Combine the supported wired control interface with LoRaWAN monitoring where appropriate. |
Electrical specifications
| Parameter | Value |
|---|
| External supply | 24 VDC |
| Boiler connection | OpenTherm, two-wire |
| Thermostat connection | OpenTherm, two-wire |
| Analog input | 0–10 VDC |
| Digital output / on-off control | SPDT relay, maximum 230 V / 0.5 A |
| Analog output / modulation | 0–10 V |
| Wired equipment communication | RS485 Modbus |
| Electrical terminals | Terminal block, maximum conductor cross-section 1.0 mm² |
Communication and configuration
| Parameter | Specification |
|---|
| LoRaWAN version | 1.0.4 |
| Device class | Class C by default; configurable to Class A |
| Activation | OTAA |
| Radio regions | EU868, IN865 |
| Maximum transmit power | 14 dBm at 868 MHz, 23 dBm at 865 MHz |
| LoRa antenna | Built-in; external SMA option |
| Local wireless interface | BLE with password authentication |
| Mobile configuration | Kibi Mobile App |
| Device-to-device communication | YOBIIQ D2D |
| Automation | Onboard schedules, event-driven and threshold logic |
| Network security | LoRaWAN AES-128 encryption and OTAA activation |
Integrate with ChirpStack, The Things Network, LORIOT or a private LoRaWAN network server. Match the radio region, device profile and payload decoder to the installed unit.
Internal Temperature Sensor
| Parameter | Value |
|---|
| Temperature Accuracy | +/- 0.2°C |
| Humidity Accuracy | +/- 1.8% rH |
Mechanical and environmental specifications
| Parameter | Value |
|---|
| Enclosure dimensions | 140 x 140 x 20 mm (height × width) |
| Mounting | Wall mounted |
| Enclosure material / colour | ABS UL94-V0 / green |
| Enclosure protection | IP30 |
| Approximate weight | 200 g |
| Operating temperature | −30°C to +55°C |
| Storage temperature | −40°C to +85°C |
| Operating humidity | 0–85% RH, non-condensing |
Certifications & Compliance
| Certification / Compliance | Details |
|---|
| Electromagnetic Compatibility | EMC 2014/30/EU (SS-EN 55032:2015, SS-EN IEC 61000-6-1, -2, -3, -4) |
| Electrical Safety | LVD 2014/35/EU (IEC 62368-1:2018) |
| Radio | RED 2014/53/EU (EN 300 220-1, EN 300 220-2, EN 301 489-1, EN 301 489-3) |
| RoHS | RoHS 2002/95/EG |
| HS Code | 8536 49 00 99 |
| Country of Origin | The Netherlands |
