The Loxone AC Control is a compact interface module for integrating air conditioning units.
For this purpose, a suitable product variant for supported air conditioning systems must be selected.
The different variants vary in the interface used, the connecting cable and the firmware. The AC Control takes over the control of the air conditioning in a Loxone installation instead of a conventional remote control.
For this reason, original remote controls of the AC unit (also IR) can no longer be used.
When adding the AC Control to Loxone Config, some modes, airflow settings, and fan speeds may not be available for certain AC Control models.
Datasheet AC Control Tree for Daikin S21
Table of Contents
Mounting↑
First switch off the air conditioner and then disconnect the mains power supply.
For installation, you need access to electrical connections in the indoor unit of the air conditioner. Refer to the installation or service manual for the air conditioner you are using to determine how to remove the covers and where the various terminals and connectors are located.
On the circuit board of the Daikin indoor unit, locate the S21 connector for the wired remote control. If a remote control is connected here, it must be unplugged and can no longer be used.
Make sure that the connector matches the connector of the enclosed cable of the AC Control in number of pins and shape.
Then connect the AC Control according to the wiring diagram below and connect the power supply (orange/white terminal) as well as the Tree data lines (green/white terminal).
In some air conditioners, the S21 connector on the circuit board is in a smaller format (for example Stylish, Perfera and Emura). In this case, the AC Control is connected to a short adapter cable (EKRS21), which is often already plugged in on the circuit board of the indoor unit. If not, the EKRS21 adapter cable is available from Daikin:
Some air conditioners are not equipped with an S21 connector. In this case, an additional adapter board (KRP980B1 or KRP067A41 depending on AC unit type) from Daikin is required, which provides the S21 connector:
Fasten the AC Control to a suitable place in the device, e.g. with a cable tie.
Make sure that the device cannot come into contact with mains voltage, hot, cold or moving components, or moisture.
For best reception, the AC Control has to be placed outside of metal covers. The supplied connecting cable must not be extended.
Finally, reinstall the housing covers and turn on the mains supply and the air conditioner.
Remember to remove or disable any existing AC unit remote controls as they can no longer be used.
Commissioning↑
For commissioning, the device must be supplied with power and a connection to the Miniserver must be possible via the Tree Interface.
Then follow the pairing procedure on the Tree Interface.
Programming↑
Loxone AC Control is programmed and set up using the AC Control function block in Loxone Config:
Diagnostics↑
In case the communication with an air conditioner does not work (correctly), a diagnostic analysis can be started in the context menu of an AC Control. This enables communication data to be displayed and recorded:
Additionally, you can also start the AC Control Monitor for diagnostic purposes.
1) Activate the AC Control Monitor. 2) Turn the AC unit off. 3) Turn the AC unit on. 4) Cycle through the non-working functions. The recording needs to be at least five minutes. 5) Save the AC Control Monitor data and have them ready for transmission to Loxone.
Actuators↑
| Summary | Description |
|---|---|
| API Connector | Intelligent API based connector. API Commands |
Diagnostic Inputs↑
| Summary | Description | Unit | Value Range |
|---|---|---|---|
| Online Status AC Control Tree | Indicates whether the device can be reached by the Miniserver. Diagnostics for Air devices Diagnostics for Tree devices Diagnostics for Extensions | Digital | 0/1 |
Properties↑
| Summary | Description | Default Value |
|---|---|---|
| Monitor online status | If checked, you will be notified via System Status or the Mailer if the device is no longer available or goes offline. | - |
| Serial number | Specifies the serial number of the device. Enter 'Auto' to automatically pair a Tree device with unknown serial number. This can only be used if there is only one Tree device of the same type on a standalone Miniserver (not in a Client-Gateway setup). Save in the Miniserver to pair the Tree device. Afterwards the program must be loaded from the Miniserver to transfer the actual serial number of the Tree device into the program. | - |
Safety Instructions↑
Installation must be carried out by a qualified electrician in accordance with the applicable regulations.
Documents↑
Datasheet AC Control Tree for Daikin S21