Connecting a Single XE70 Wall Controller to Multiple High Wall Splits


In some installations, it may be necessary to connect a single XE70 wired wall controller to multiple High Wall Split indoor units (IDUs). This setup requires a configuration change in the XE70 controller.


Step 1: Wiring

Ensure all units are wired correctly according to the electrical wiring schematic provided below.


ELECTRICAL WIRING SCHEMATIC


Step 2: Power-Up Sequence

Once wiring is confirmed:

  • Power up all connected outdoor and indoor units


Step 3: Configure the XE70 Wall Controller

To enable control of multiple IDUs from a single XE70 controller, a parameter must be changed. This can be done either before or after system commissioning.

To change the parameter:

  1. Press the MENU button.
  2. Use the DOWN arrow to highlight Project SET, then press MENU/OK to enter.
  3. Scroll down to NUMBER OF IDU's.
  4. Press MENU/OK to enter the setting (default is 1).
  5. Use the UP/DOWN arrows to select the number of connected indoor units.
  6. Press MENU/OK to save the setting.

The XE70 controller will now be configured to control the selected number of indoor units.