Connecting The Pressure Sensors; Filters Clogging Supervision; Adjusting Of The Fan Speed - S&P UVF ECOWATT Serie Manual Del Usuario

7.9. CONNECTING THE PRESSURE SENSORS

7.9.1. Filters clogging supervision

The unit is equipped with 2 pressure taps on each side of the fi lters which allow the connec-
tion of the pressure switch delivered with the unit.
Connect the pneumatic tubes, respecting the indications "+" and "-" in the pressure switch
and in the pressure taps.
Section 9.3. includes a table with the recommended pressure drop values for each fi lter class.

8. ADJUSTING OF THE FAN SPEED

All models of the UVF-ECOWATT range have a built-in potentiometer inside the electrical
terminals box that allows the manual adjustment of the fan speed.
It is not necessary to open the fan access register during the unit electric connection.
Depending on the position of the jumpers built-in into the electric terminals box, it is possible
to select the type of regulating element between the manual potentiometer integrated in the
PCB, or an external control signal 0-10V type.
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