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3 OPERATING MODE
3.1 AUTO MODE
This functioning mode involves the renewal of room air using the maximum ow rate of inow and expulsion fans. In order to activate this procedure the user must press the
Mode/Select key on the interface panel until the “AUTO” icon appears.
The duration of this function depends on the Ct parameters (cleaning time) settable from the user interface panel of the machine. When this time expires, the system goes back
to the functioning mode that was set prior to the room cleaning procedure.
3.2 MANUAL MODE
This functioning mode involves the activations of inow and expulsion fans according to the Po1 and Po2 parameters. In order to activate this procedure the user must press
the Mode/Select key on the interface panel until the “AUTO” and “AUX” icons appear.
The Po1 and Po2 parameters indicate a ow rate percentage (referred to the maximum of the installed fans) to be ensured in a one-hour functioning cycle. These parameters
can, therefore, be linked to the air renewal (moved air volume) that is to be ensured to the room.
The control will provide a constant functioning reference such as to ensure a constant instantaneous ow rate:
PISTx = Pox * PMAX
where
PISTx: inow or expulsion instantaneous ow rate
Pox: it can be Po1 or Po2 depending on whether it is the inow or expulsion fan
PMAX: maximum fan ow rate
3.3 AUX MODE
This functioning mode is entirely similar to manual mode, but allows the user to enable any resistive loads present in the machine for the anti-freeze function and production
of neutral air (the inow air temperature must tend to that of the expelled air). In order to activate this procedure the user must press the Mode/Select key on the interface
panel until the “AUX” icon appears