EVCO EPK4BHQ1AH Installer manual - Manual (Page 87)

EVCO S.p.A. c-pro 3 NODE kilo AHU | Application manual ver. 1.0
page 87 of 114
Note: each time the unit is in ON status (for turning on the card, for restoration of an alarm block, or to restore the
feed after a black-out), the dampers will re-align; for the entire run time (plus eventual time PS09), the shutter will
close and the control will be interrupted.
Once the run time has elapsed the control will return to its normal operating state. This is necessary because there is
no feedback for controlling the position of the shutter.
6.16.7 Damper status
In the user interface you can identify the operating status of the shutters which will present you with one of the
following:
1. Disabled: the shutter is not managed by the controller. In the user interface you will see the symbol “ – “.
when in this state.
2. Closed: the shutter is closed. In the user interface you will see written “CLOSED” and a value of 0.0%. when
in this status.
3. Opening: the shutter is in the process of opening. In the user interface you will see written “OPENING”
flashing with the corresponding value when in this state.
4. Open: the shutter is open and still at the determined value. In the user interface you will see written “OPEN”
and the corresponding value of opening when in this state.
5. Closing: the shutter is in the process of closing. In the user interface you will see written “CLOSING” flashing
with the corresponding value when in this state.
6. Alignment: the shutter is in the process of moving in order to align in response to the start-up of the unit or
because the tension is restoring. In the user interface you will see written “ALIGNMENT.” with the value 0.0%
flashing.
6.17 Heat recovery devices
When the quantity of renewed air is substantive the air treatment centres provide a system which recovers the
exhaust air for a better exercise of energy costs.
Using the parameter (PG13>0) it is possible to utilize the heat recovery by selecting one of the following different heat
recovery devices:
- PG13 = 0: Management disabled
- PG13 = 1: Heat recovery devices at cross flow
- PG13 = 2: Heat recovery devices with double coil
- PG13 = 3: Heat recovery device rotating On/Off
- PG13 = 4: Heat recovery device rotating modulating
Recovery management presupposes that the exhaust air temperature sensor is present, therefore in order to utilize
the recovery the sensor will need to be enabled by setting parameter PH42=1.