---
title: "KNX air conditioning and heating with Link’nX: Daikin and Airzone"
description: "Control Daikin air conditioners and Airzone zones from KNX with Link’nX: on/off, mode, setpoint, fan speed, slats and status feedback."
canonical: https://wiki.can-nx.com/en/usages/climatisation/
language: en
---

# KNX air conditioning and heating with Link’nX: Daikin and Airzone

Link’nX connects two air-conditioning families to the KNX bus: Daikin units, declared by the IPv4 address of their Wi-Fi adapter, and Airzone zones, declared by the IPv4 address of their Airzone box. From a KNX button or a scenario, you control on and off, the mode (heat, cool, fan, dehumidification), the temperature setpoint, the fan speed and the slats. States and measurements can be read back on the bus.

## Solutions for your need

| Need | Application | Guide |
| --- | --- | --- |
| Declare a Daikin unit by the IPv4 address of its Wi-Fi adapter | Link’nX, **Devices → Climate & Energy → Daikin** | [Declare Daikin, Gude or Atmoce](https://wiki.can-nx.com/en/guides/link-dga-devices/) |
| Control a Daikin unit from KNX and read back its mode, temperatures or humidity | Link’nX, Daikin gateway | [Associate Daikin commands and feedback with KNX](https://wiki.can-nx.com/en/guides/link-daikin-knx/) |
| Change the mode, the setpoint or a Daikin special mode in a scenario | Link’nX, **Daikin** actions | [Prepare Daikin actions](https://wiki.can-nx.com/en/guides/link-daikin-actions/) |
| Declare an Airzone box, find it on the network and choose the system and zone | Link’nX, **Airzone** list, **Airzone box** then **Zone to control** steps | [Add an Airzone device and choose its zone](https://wiki.can-nx.com/en/guides/link-aidoo-device/) |
| Control an Airzone zone from KNX group addresses | Link’nX, Airzone gateway, **Actions** tab | [Map Airzone commands to KNX group addresses](https://wiki.can-nx.com/en/guides/link-aidoo-gateway/) |
| Read the room temperature, setpoint, mode or humidity of an Airzone zone | Link’nX, second tab of the Airzone gateway | [Associate Airzone status feedback](https://wiki.can-nx.com/en/guides/link-aidoo-feedback/) |
| Control an Airzone zone in a scenario, with its setpoints and thresholds | Link’nX, **Airzone** actions | [Control an Airzone zone from a scenario](https://wiki.can-nx.com/en/guides/link-aidoo-action/) and [fill in its values](https://wiki.can-nx.com/en/guides/link-aidoo-values/) |

Then add the actions to a [scenario](https://wiki.can-nx.com/en/guides/link-compose-scenario/). For a zone that cannot be found or an action with no effect, see the [Airzone troubleshooting guide](https://wiki.can-nx.com/en/guides/link-aidoo-help/).

## Good to know

- Both brands exchange the mode in DPT 20.105 with the same codes: 0 Auto, 1 Heat, 3 Cool, 6 Off, 9 Fan, 14 Dehumidification; Airzone adds 8 Auxiliary heat. Setpoints use DPT 9.001 and fan speed uses DPT 5.010.
- Setpoints: 10 to 32 °C in half-degree steps for Daikin; for Airzone, in Celsius, 15 to 30 °C (general or heating) and 18 to 30 °C (cooling).
- For a KNX object that distinguishes on and off by 1 and 0, use the **Toggle** row (**Toggle device on or off** for Airzone), DPT 1.001. **Turn on** and **Turn off** are named commands: do not rely on a write of 0 to cancel them.
- In a scenario, choose the mode and speed by their label: the KNX codes are not entered in the **Actions** form.
- Daikin special modes depend on the adapter: **Streamer air purifier** and **Holiday mode** on classic BRP069 adapters, **Comfort mode** and **Outdoor unit quiet mode** with firmware 2.8.0 or later.
- Modes, speeds, slats and ionization must exist on the hardware, and missing feedback does not mean zero. Test each command on the actual unit or zone.

Emergy’nX can also include heating or air conditioning in its energy management: see [the Emergy’nX equipment types](https://wiki.can-nx.com/en/guides/emergy-equipment-types/) and [Energy and metering](https://wiki.can-nx.com/en/usages/energie/).

Brand pages: [Daikin](https://wiki.can-nx.com/en/integrations/daikin/) and [Airzone](https://wiki.can-nx.com/en/integrations/airzone/).

## All Heating and air conditioning guides

### Devices and integrations

- [Control Airzone air conditioning from a Link’nX scenario](https://wiki.can-nx.com/en/guides/link-aidoo-action/)
- [Add an Airzone device in Link’nX and choose its zone](https://wiki.can-nx.com/en/guides/link-aidoo-device/)
- [Airzone status feedback on KNX: temperatures and mode](https://wiki.can-nx.com/en/guides/link-aidoo-feedback/)
- [Airzone and KNX: map commands to group addresses](https://wiki.can-nx.com/en/guides/link-aidoo-gateway/)
- [Temperature setpoints and ionization thresholds of an Airzone action](https://wiki.can-nx.com/en/guides/link-aidoo-values/)
- [Daikin actions: control air conditioning from a Link’nX scenario](https://wiki.can-nx.com/en/guides/link-daikin-actions/)
- [Add Daikin, Gude or Atmoce devices in Link’nX: IP, port and Slave ID](https://wiki.can-nx.com/en/guides/link-dga-devices/)

### Protocols, imports and monitoring

- [Daikin and KNX: map commands and feedback to group addresses](https://wiki.can-nx.com/en/guides/link-daikin-knx/)

### Questions and troubleshooting

- [Airzone in Link’nX: troubleshooting and common questions](https://wiki.can-nx.com/en/guides/link-aidoo-help/)