Fault Inputs - S&P MULTI-REG CONTROL 2841 Series Manual

6.10.

FAULT INPUTS

External fault switch (SW1)
When the fan is in normal running conditions the switch should be in the closed position. If additional
switches are required then they can be connected in series. During start-up there is a 60 seconds
delay to allow the airflow to increase. When the fault switch opens signifying loss of airflow, the
controller will automatically stop the fan and display "EXTERNAL SW1 FAULT".
Following an "EXTERNAL SW1 FAULT", a manual re-start will be required.
External fire shut-off switch (SW2)
When the fan is in normal running conditions the switch should be in the closed position. When the
fault switch opens signifying the fire alarm has been activated, the controller will automatically stop
the fan and display "FIRE ALARM ACTIVATED".
Following a "FIRE ALARM ACTIVATED" notification, a manual re-start will be required
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