Robur Direct Digital Controller User Manual

Direct Digital Controller
Direct Digital Controller fw 4.013 – Ed. 01/2013 11
2.4 COOLING/HEATING SERVICE CONTROL MENU
Select the icon from the main screen, concerning the service to be controlled, to access the “Plant
control” menu. In this screen, on the basis of the configuration carried out, it is possible to select and manage
the buttons that switch on the cooling/heating plants.
The figure below shows how the “Plant control” menu screen appears to give an example of configuration.
Figure 3 – EXAMPLE OF COOLING/HEATING PLANT CONTROL SCREEN
Main ON/OFF switch of cooling/heating services. It permits to switch on/off the
controlled service(s) (cooling and heating or 2-pipe cooling/heating).
 To switch on the service(s) , turn the knob and position the cursor on
and then
press the same. The button will appear thus
to indicate that the switch has been
closed (ON).
 To switch off the service(s), turn the knob and position the cursor on
and then
press the same. The button will appear thus
to indicate that the switch has been
opened (OFF).
The symbol
indicates that the button has been disabled and that it is not possible
to select it. The switch will not affect the switching on of the plant.
Group ON/OFF switch. Use this button to switch on or off only the units that are directly
managed by the specific DDC. This button is enabled only for Multi DDC plants (i.e.
plants that are managed by several Direct Digital Controllers); the activation of those units
requires, however, that the main ON/OFF switch present only on the master DDC is
enabled.
 To enable on the units controlled by the DDC, turn the knob to position the cursor on
, and press the knob. The button will appear thus to indicate that the switch
has been closed (ON).
 To disable the units controlled by the DDC, turn the knob to position the cursor on
, and press the knob. The button will appear thus , indicating that the switch
has been opened (OFF).
The symbol
indicates that the button has been disabled and that it is not possible
to select it.
The switch does not affect the switching on of the units.
KEY:
A Main ON/OFF switch;
B Partial ON/OFF switch (enabled only on Multi
DDC systems)
C Button for enabling General water T timer;
D Button for enabling Partial water T timer (Multi
DDC plants only)
E Button for enabling chronothermostat;
F Heating-cooling switching button (only for the 2-
line heating/cooling systems)
G Exit menu.
A
B C D
E F G

Robur Direct Digital Controller Specifications

General

Brand	Robur
Model	Direct Digital Controller
Category	Controller
Language	English