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18
9.2.2. Through integration to Modbus network (external BMS)
Integration into Modbus networks is incompatible with the use of the remote control. In addition to all-
functionality available through the remote control, through the map of modbus registers it is possible to
obtain the following functionalities and information:
FUNCTIONALITY
Automatic fan speed adjustment in COP (Constant Pressure) mode. Fans vary their speed to maintain a constant
pressure in the ductwork. It is necessary to install an external TDP sensor.
Visualization of functional parameters of the unit, including:
- Outside air temperature
- Supply temperature
- Inside air temperature
- Outside air expulsion temperature
- Current fan speed
- Detailed information alarms
9.3. USE OF REMOTE TERMINAL - USER LEVEL
Using the three buttons on the remote terminal, simple operation settings can be done, as well as obtain
information on its operating status.
Function of the buttons:
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by-pass mode selection manual/automatic
Bypass pass temperature setting (free-cooling mode)
Start / Stop / Speed Adjustment
9.3.1. Fan speed selection (Start / Stop / Speed adjustment)
Pressing the button
both fans start running, the fans increase progressively its speed until reaching
the LOW setpoint speed. Through successive pulsations it is possible to change the fans speed.
The control of this operation mode will be carried out by means of the button of speed selection, fo-
llowing the sequence:
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HIGH
speed
MEDIUM
speed
LOW
speed
Unit
OFF
LOW
speed
Unit
OFF
MEDIUM
speed
AUTO
mode
Previously
confi gured