AC Control Tree for Mitsubishi Heavy Industries

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.

If the AC Unit is turned back on after a power interruption, it will be reinitialized. Depending on the device, this can take a few seconds or up to 15 or 30 minutes. During this time, the AC Unit cannot be controlled with the AC Control.

Datasheet AC Control Tree for Mitsubishi Heavy Industries

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.

Locate the screw terminals X/Y for the wired remote control in the Mitsubishi indoor unit. If a remote control is connected, it must be disconnected and can no longer be used.

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).

Some air conditioners are not equipped with X/Y terminals. In this case, the additional adapter board SC-BIKN-E(A) from Mitsubishi Heavy Industries is required, which provides the X/Y terminals.

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

SummaryDescription
API ConnectorIntelligent API based connector.
API Commands




Diagnostic Inputs

SummaryDescriptionUnitValue Range
Online Status AC Control TreeIndicates whether the device can be reached by the Miniserver.
Diagnostics for Air devices
Diagnostics for Tree devices
Diagnostics for Extensions
Digital0/1




Properties

SummaryDescriptionDefault Value
Monitor online statusIf checked, you will be notified via System Status or the Mailer if the device is no longer available or goes offline.-
Serial numberSpecifies 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 Mitsubishi Heavy Industries