# Drexel und Weiss
STABLE NYMEA
Connect to Drexel und Weiss HVAC systems.
_Installation guide coming soon._
## Reference
!!! info "Application labels"
The keys and labels below are the ones the application shows,
**in English**. They are left verbatim so that you find them
word for word on screen.
**Manufacturer:** Drexel und Weiss
**Plugin:** `DrexelUndWeiss`
#### Supported models
| Model | Role | Transport | Pairing | Quantities |
| --- | --- | --- | --- | --- |
| **X2 LU** | ventilation, co2sensor | Modbus RTU | Auto-discovery | 5 |
| **X2 WP** | thermostat, Consumption meter | Modbus RTU | Auto-discovery | 19 |
#### Per-model detail
??? abstract "X2 LU — `x2lu`"
_Discovery parameters:_
| Key | Label | Type | Range | Default |
| --- | --- | --- | --- | --- |
| `slaveAddress` | Slave address | int | — | `1` |
_Settings:_
| Key | Label | Type | Range | Default | Read-only |
| --- | --- | --- | --- | --- | --- |
| `slaveAddress` | Slave address | uint | 0–250 | `0` | no |
| `modbusMasterUuid` | Modbus RTU master | QUuid | — | — | no |
_Measured quantities:_
| Key | Quantity | Type | Unit |
| --- | --- | --- | --- |
| `connected` | Connected | bool | — |
| `power` | Power | bool | — |
| `co2` | CO2 | double | PartsPerMillion |
| `ventilationMode` | Ventilation mode | QString | — |
| `activeVentilationLevel` | Ventilation level | int | — |
??? abstract "X2 WP — `x2wp`"
_Discovery parameters:_
| Key | Label | Type | Range | Default |
| --- | --- | --- | --- | --- |
| `slaveAddress` | Slave address | int | — | `1` |
_Settings:_
| Key | Label | Type | Range | Default | Read-only |
| --- | --- | --- | --- | --- | --- |
| `slaveAddress` | Slave address | uint | 0–250 | `0` | no |
| `modbusMasterUuid` | Modbus RTU master | QUuid | — | — | no |
_Measured quantities:_
| Key | Quantity | Type | Unit |
| --- | --- | --- | --- |
| `connected` | Connected | bool | — |
| `power` | Power | bool | — |
| `temperature` | Room temperature | double | DegreeCelsius |
| `waterTemperature` | Water temperature | double | DegreeCelsius |
| `outsideAirTemperature` | Outside air temperature | double | DegreeCelsius |
| `targetTemperature` | Target room temperature | double | DegreeCelsius |
| `targetWaterTemperature` | Target water temperature | double | DegreeCelsius |
| `heatPumpMode` | Heat pump mode | QString | — |
| `error` | Error | QString | — |
| `currentPower` | Total power consumption | double | Watt |
| `powerCompressor` | Power consumption compressor | double | Watt |
| `powerAirPreheating` | Power consumption air preheating | double | Watt |
| `powerRoomHeating` | Power consumption room heating | double | Watt |
| `powerWaterHeating` | Power consumption water heating | double | Watt |
| `totalEnergyConsumed` | Total energy consumed | double | KiloWattHour |
| `energyCompressor` | Energy compressor | double | KiloWattHour |
| `energyAirPreheating` | Energy air preheating | double | KiloWattHour |
| `energyWaterHeating` | Energy water heating | double | KiloWattHour |
| `energyRoomHeating` | Energy room heating | double | KiloWattHour |