WEG CLIC-02 Manual Del Usuario página 205

The room is equipped with an exhaust fan for contaminated air and an insuflator for
„
fresh air.
Flow sensors monitor the air inlet and outlet.
„
Positive pressure will not be allowed at any time.
„
The air insuflator will work only if the contaminated airflow sensor is running.
„
If any irregularity in the air inlet is detected, the alarm Light Bulb will be lit.
„
The control circuit of the traditional ventilation system is shown below:
L1
SD
S1 MC1
MC5
MC3
MC1 MC2
N
Gas
exhaust fan
The Ventilation system is completely controlled by the airflow. If there is no airflow in the
room after a certain period of time, the system will activate the alarm and the operator will
turn the system off.
Used components:
MC1 main contactor
„
MC2 main contactor
„
S0 (NF contact) off-push button
„
S1 (NA contact) on-push button
„
S2 (NA contact) airflow sensor
„
S3 (NA contact) airflow sensor
„
H1 operating Light Bulb
„
H2 alarm Light Bulb
„
S2
S2 S3
MC3 MC4
Fresh air
- English -
MC2 MC4
H1 MC5
H2
Operation
Application Examples
MC5
Error
CLIC-02 | 205