Tecalor TTL / TTF / THZ (+ ISG plus)
Heat pumps Hot water Fully supported
What Franzl can do with this device
| Measure live power | ✓ |
| Meter energy (kWh) | ✓ |
| Read state of charge (SoC) | — |
| Read temperature | ✓ |
| Control power | — |
| Control operating mode | — |
| Set target temperature | ✓ |
How it connects
Franzl reads this device through the Home Assistant integration stiebel_eltron. If your device is already set up there, Franzl finds it automatically.
Setup
Tecalor is Stiebel Eltron's sales brand (TTL = WPL, TTF = WPF, THZ = LWZ); the connection works technically identically: through Home Assistant, either the built-in stiebel_eltron integration or, recommended, the HACS integration stiebel_eltron_isg.
Requirements
- An ISG plus (paid accessory)
- With ISG + EMI: current ISG firmware (≥ v12.1.2 confirmed)
- In the ISG SERVICEWELT, set the signal source to "Modbus"
Device fits? Then nothing stands between you and getting started.
Install Franzl