CLIVET ELFORoom2 Série Manuel D'installation Et D'entretien page 70

SC010 - 0-10V modulating fan - 2 pipe system
Fan modulation
(input impendance 25k )
Y1 Water solenoid valve(heating/cooling)
If the S1 input to which the grille safety micro-switch is connected is closed, the 10 V input activates the Y1 solenoid valve and adjusts
the speed of the fan.
The speed "ramp" provides for linear adjustment from the minimum speed (400 RPM) to the maximum (1,400 RPM) with voltages
1.1V - 10 V DC.
The motor is switched off for values less than 1 V DC.
The Y1 solenoid valve is activated for voltages > 1 V DC and is switched off when it falls below 0.9 V DC.
Fan modulation
Fan speed
10v = fan 1400 rpm
1v = fan 450 rpm
<1v = fan off
5 - ELECTRICAL CONNECTIONS
A
M1 = motor
RS Radiant optional (page.74)
LED meaning / alarms
The LED (A) is off if the input signal is lower than 0.9 V.
It is switched on for values greater than 1 V and indica-
tes normal operation.
-
It flashes frequently if the S1 grille safety micro-
switch is activated due to filter cleaning operations.
-
2 flashes + pause for motor alarm (for example,
jamming due to foreign bodies, fault in the rotation
sensor).
2 pipes
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