Daikin EWWQ-AJYNN Service Manual page 54

Functional Control
2.2 ON / OFF Management
1
Introduction
2
Power on
3
On/Off local
4
Remote on/off
5
On/Off network
On/Off time
schedule
Emergency stop
2–48
There are four ways of switching the unit on and off:
■
Through the local key of the controller
■ Through a remote switch
■ Through a supervision system (BMS)
■ Through a time schedule
■ The initialization takes 10 seconds.
■ The controller automatically goes to the first 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 auto restart function can be disabled in the user menu.
Unit shutdown through the controller (on/off key).
If the switch is enabled, "off keypad" will appear on the display of the unit status.
Unit shutdown through a digital contact.
If the panel switch is in the "0" position the unit is off by local switch and on the display "Off Loc/Rem
Sw" will appear.
■ If the switch is in "Loc" position, the unit is on (unless there are other shutdown conditions).
■ If the switch is in the "Rem" position, the digital contact control allows the start up and the shutdown
of the unit from a remote switch. When the unit is stopped from remote, "Off Loc/Rem Sw" will
appear on the display of the unit status.
Remark: The remote on/off switch is field supply.
This function allows the start up and the shutdown of the unit through Supervision System Plant Visor
1.0.
In case this function is enabled, the display of the unit status shows "Off Rem. Comm".
This function, if enabled, allows the start up and the shutdown of the unit based on a user defined time
schedule. In case the function is enabled, "Off Time Schedule" will appear on the display of the unit
status.
In the even of an emergency, switch off the unit by pushing the emergency button.
When the problem is solved, do not forget to reset the emergency button.
ESIE07-05
Part 2 – Functional Description