86
CO
2
VOC
It is present only if the fan speed automatic control is configured with a CO
2
or CO
2
-VOC sensor (Instal-
ler menu).
ok
ko
RH sensor
It is present only if the fan speed automatic control is configured with a relative humidity sensor (Installer
menu).
ok
ko
Ext.signal
It is present only if the fan speed control is configured with an external 0-10V analog signal (Installer
menu).
ok
The external signal source works properly
ko
External signal not present (voltage at the clamps = 0V):
1) check electrical connections of the external source (see electric diagram);
2) if the problem is not solved, check whether the external signal is present (tester) and its
value is greater than 0V;
3) if the problem is not solved, replace the electronic card.
FlowSupply
It is present only if the machine is in the constant flow version with control on both flows.
ok
The supply pressure sensor works properly.
ko
Possible anomaly in the supply pressure sensor.
FlowExhaust
It is present only if the machine is in the constant flow version with control on both flows.
ok
The return pressure sensor works properly.
ko
Possible anomaly in the return pressure sensor.
Flow
It is present only if the machine is in the constant flow version with control on one flow.
ok
The pressure sensor works properly.
ko
Possible anomaly in the pressure sensor.
DpSupply
It is present only if the machine is in the constant pressure version with control on both flows.
ok
The supply pressure sensor works properly.
ko
Possible anomaly in the supply pressure sensor.
DpExhaust
It is present only if the machine is in the constant flow version with control on both flows.
ok
The return pressure sensor works properly.
ko
Possible anomaly in the return pressure sensor.
Dp
It is present only if the machine is in the constant pressure version with control on one flow.
ok
The pressure sensor works properly.
ko
Possible anomaly of the pressure sensor.
Autominutes
It is present only if the fan speed automatic control alarm is configured with a CO
2
or CO
2
-VOC sensor
(Installer menu).
ok
The sensor works properly.
ko
Possible anomaly in the sensor.
