Cav Control (Constant Airfl Ow) - S&P UVF ECOWATT Série Manuel D'instructions

8.3. CAV CONTROL (CONSTANT AIRFLOW)
The inverter is used to guarantee an specifi c constant air volume in the duct system, regardless of
the fi lters clogging state.
UVF ECOWATT units are equipped with EC motors. The motors have specifi c terminals to receive a
regulation signal to control fan speed (0-10V).
The 0V signal corresponds to the fan stop, while the 10V signal corresponds to the maximum fan
speed.
To perform speed regulation in pressure or constant airfl ow mode, it is necessary to use the CON-
TROL AERO-REG accessory and the corresponding external TDP-D sensor.
1º Connect the pressure transmitter TDP-D (accessory) to the specifi c pressure taps there are in
the ventilation box. Ensure that pressure taps "+" and "-" of the transmitter pressure match
those of the ventilation box:
2º Perform the electrical connection and regulator confi guration, following the instructions of the
CONTROL AERO-REG accessory.
3º Reconfi gure the pressure transmitter. So that the regulation is correct and the transmitters
correctly visualize the airfl ow, it is necessary that it is confi gured to work in airfl ow mode with a
range of 9,999 m 3 /h.
EN
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