Daikin EWYQ230DAYN [333/524] On off management

ESIE06-05 Functional Control for a Standalone Unit

Part 2 – Functional Description 2–107

3.3 On/Off Management

Introduction There are three ways of switching the unit on and off:

■ Through the local key of the controller.

■ Through the BMS.

The last command, of these two, determines the status of the local key.

■ Through a remote switch. The remote switch gives an on/off signal to one of the changeable digital

inputs of the controller.

If the remote switch function is used, then an AND function with the first two commands determines

the on/off status of the unit.

Power on

■ The initialization takes 20 seconds.

■ The controller automatically goes to the menu overview or operation informative screen.

Remark:

An auto restart function is integrated. This means that the on/off status is remembered after a power

failure of the unit. This function can be disabled in the service/advanced menu.

Remote on/off The procedure to switch the unit on/off depends on the settings of the changeable inputs/outputs.

These settings can be made in the service input output menu.

Remark:

■ The remote on/off switch is field supply.

■ When the remote switch is "OFF" it is not possible to switch the unit on with the controller.

On/off status This table gives an overview of the status of the unit and LEDs in applications with a remote switch. In

case there's no remote switch the status of the unit only depends on the status of the local key.

Local key Remote Switch Unit LED

ON ON ON ON

ON OFF OFF Flashing

OFF ON OFF OFF

OFF OFF OFF OFF