Hired-Hand System 1000 Power Vent - Manual (Page 15)

System 1000 Power Vent System 1000 Power Vent Alarms Alarms •• 12 12
Alarms Alarms
High Pressure Alarm
The High Pressure Alarm will send a signal to your existing alarm system
when pressure exceeds the High Pressure Setpoint. (High Negative Pressure.)
This alarm warns if the vents did not open for some reason.
Low Pressure Alarm
The Low Pressure alarm will send a signal in the same manner as the High
Pressure alarm, but only if pressure drops below the low pressure setpoint. This
alarm warns if the vents failed to close for some reason.
Cycle Alarm
The cycle alarm is a very important alarm in that it will warn if your timer fans
failed to operate. The controller will look for a pressure surge which would be
caused when the timer fans turn on. If this pressure surge is not sensed within
the timer period you specify, the controller will signal your alarm system, thus
triggering an alarm.
Auto Reset Alarm
This feature allows the controller to reset the cycle alarm if the
alarming condition goes away. For example: If the cycle alarm has
sounded, but 30 seconds later the controller senses the pressure surge,
the controller will stop the alarm, and reset its time clock.