Itho-Daalderop Heatpump
Supported Devices
| Device Type | Modbus TCP (Ethernet) | RS485 |
|---|---|---|
| Itho-Daalderop heatpump | ❌ | ✅ |
Warning
Warning
Control is only possible using Boost or Block. Specific Wattage control is not supported!
Connection
The communication between the Sunlight Group EMS and the Itho-Daalderop heatpump operates via RS485.
RS485
Info
RS485 Wiring
- For correct RS485 wiring: Follow the guidelines for RS485 wiring.
- If the wiring shown in the table below is incorrect, please let us know.
- There is no general consensus in the industry about the usage of A and B for the RS485 polarity, so it may be counterintuitive and opposite of what you might expect for some devices.
| Device | Sunlight Group EMS model OM1 | Sunlight Group EMS model IG8 | RS485-USB converter | RS485-Ethernet converter |
|---|---|---|---|---|
| A | RS485 A | RS485_POS | RS485 A | TX+ |
| B | RS485 B | RS485_NEG | RS485 B | TX- |
| GND (if available) | RS GND | GND | Not available | G |
Last updated December 10, 2025Edit this page