D-EOMOAH00903-21_01EN - 8 / 37
6
Main Menu screen
Through Main Menu screen the user can access to all the information necessary for monitoring the AHU status, in addition
to managing the unit operative mode.
In particular, the user can:
-
Control the AHU operative mode
-
Change the AHU Setpoint
-
Change the Summer/Winter state
-
Access to the I/O overview menu
-
Program the time scheduler
-
Restore alarm conditions
Next chapters will describe any item of the main menu.
6.1 Control Source
This item displays the actual control source of the AHU. All possible control source are reported in the table below.
HMI Path: Main Menu -> Ctrl Source
Main Menu item
Value
Description
Control Source
- Local
- BMS
−
Local:
a.
HMI:
unit control managed directly from the controller interface or
automatically via time scheduler. Refer to
Local Switch
page for
more details.
b.
Room Unit:
when Control Source is set to Local, the unit can be
controlled also through the Room Unit device (POL822), if installed.
Refer
to Appendix
A
for more details on
Room Unit control
.
−
BMS
:
a.
Modbus
:
the unit can be controlled by a Modbus Master device
through Modbus protocol, if the corresponding communication
module is installed (POL902). Refer to D-EOMOCAH202-18EN for
more details.
b.
BACnet:
the unit can be controlled through BACnet communication
if
the
corresponding
communication
module
is
installed
(POL904/POL908). Refer to D-EOMOCAH10009 for more details.