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Aquavar IPC Start-Up Genie
CentriPro
• No Water/Loss of Prime Protection Delay: The No Water/Loss of Prime
Delay time sets the time delay between detection of a No Water/Loss of Prime
condition and when the fault is issued. The pump must be running at maximum
speed while the HP is less that the No Water/Loss of Prime Limit to start the
delay timer.
• Under Pressure Function: The Under Pressure alarm/warning is issued when
the system pressure falls below the Under Pressure Limit for longer than the
Under Pressure Delay Time.
• Under Pressure Delay: Under Pressure Delay Time sets the delay before the
action set occurs when an Under Pressure condition in detected.
• Under Pressure Difference: Under Pressure Difference is the difference
between the setpoint and the actual pressure that will trigger the Under Pressure
Function. This value is set as a % of Maximum Reference/Feedback.
Under Pressure Difference Example
Given:
• Under Pressure Delay = 10 seconds
• Under Pressure Difference = 10%
• Setpoint = 50 psi
• High Feedback 1 Value = 300 psi.
When the system pressure falls below 20 psi (50 psi – (10% * 300 psi))
for more than 10 seconds, the controller will issue an Under Pressure Alarm or Warning.
• Setup Pump Protection through Digital Input 19: A pump or system
protection function can be implemented using digital input DI 19 and an
external switch. Pump Protect Alarm is active when this input is ‘O’ or Open.
• Setup Pump Protection through Digital Input 27: A pump or system
protection function can be implemented using digital input DI 27 and an
external switch. Pump Protect Alarm is active when this input is ‘O’ or Open.
• Pump Protect Delay: Pump Protect Delay sets the time between detection of a
Pump Protect Alarm condition and the issue of the Pump Protect Alarm.
CHAPTER 6: PUMP PROTECTION
(continued)
