Priming - Pentair INTELLIFLO WHISPERFLOVSD Installation Manual

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Priming

The default setting for Priming is ENABLED. Enabling this feature allows the pump to use its "Flow
Technology" to be sure the pump is primed for startup. This feature will not override the "Max Speed"
setting. The priming feature ramps the pump to 1800 RPM and pauses for three (3) seconds. If there is
sufficient water flow in the pump basket, the pump will go out of priming mode and run its commanded
speed. If the flow in the pump basket is not sufficient, the pump will ramp to the "Max Speed" setting
and stay there for the priming delay time, which is defaulted at 20 seconds. If there is sufficient water
flow in the pump basket at this time, it will go out of priming mode and ramp to the commanded speed.
If there is still insufficient flow in the pump basket, the pump will try to prime at the "Maximum Speed"
for the amount of time set up in the "Maximum Priming Time" menu.
Maximum Priming Time: The Maximum Priming Time can be set from 1 minute to 30 minutes. The
default setting is 11 minutes. This is the maximum amount of time the pump will try to prime before
giving an error. However if the pump does not see a sufficient amount of water in the pump basket this
can cause the pump to report a Priming Dry Alarm within seconds of the beginning of the priming cycle.
Priming Dry Alarm: An insufficient amount of water in the basket during priming will cause the
pump to report a Priming Dry Alarm. The basket should be filled with water and the pump restarted
when this alarm occurs.
Note: When a Priming Dry Alarm takes place it will try to restart after 10 minutes.
Primed Sensitivity: The primed sensitivity can be set from 1% to 100%. The factory default setting
is 1% meaning that the pump is at its most sensitive setting in regards to determining if the pump has
attained a prime or not. Increasing this number will decrease the amount of flow needed for the pump
to sense that it is primed. Making this number too high could cause the pump to think it has attained
a prime and evacuated the air from the system when it has not. If the system is such, that the pump
has trouble coming out of the priming mode and it is evident that the pump basket is full of water and
flowing then the Primed Sensitivity number can be increased.
Priming Delay: The priming delay can be set from 1 second to 10 minutes. The default setting is 20
seconds. This means the pump will ramp to 1800 RPM and stay there for three (3) seconds which it
will always do in the hard Priming Mode. If there is sufficient flow in the pump basket, the pump will
then go out of priming mode and ramp to its commanded speed. If there is insufficient water flow in
the pump basket, the pump will ramp to the Max Speed Setting and stay there for the default time of
20 seconds. It may be necessary to increase the prime delay to allow the system to stabilize before the
pump goes into running mode. If the pump errors out immediately after priming, then increasing the
Priming Delay time may correct the issue.
When the pump is connected to an automation system and the "Maximum Prime Time" feature is
enabled, it will remain active.
Continue to next page for priming MENU information.