Clean Filter Pressure Example; Alert Status - Pentair IntelliFlo WhisperFlo VF Guide D’iNstallation

30
Filter Menu (Continued)

Clean Filter Pressure Example

Pool filters work by trapping dirt. At startup, when a pool filter is still clean, it registers an internal
pressure known as "starting pressure." As dirt builds up in the filter, internal pressure increases.
Eventually, the filter will need a) to be cleaned, or "backwashed", to remove the dirt if it is a sand or
D.E. filter, or b) to have its cartridges cleaned or replaced if it is a cartridge filter. This cleaning should
be done when the filter's internal pressure has reached between 0,6 and 0,7 bar above starting pressure.
NOTE:
"Clean Filter Pressure" is the increase in internal filter pressure (above starting pressure)
necessary to reach the target pressure at which you would like IntelliFlo to alert you that it is time
to backwash the filter, or clean/replace the filter cartridges.
In the example below, the internal pressure of the filter is 0,7 bar at startup when the filter is clean (starting
pressure). The "Clean Filter Pressure" is set to 0,6 bar.
Filter
10m³/h
FLOW
RUNNING Schedule
Pump newly installed and
system run for the first time.
Starting pressure=0,7 bar

Alert Status

Once the "Alert" is triggered, the yellow warning LED is lit and "Alert" is displayed on the screen. At this
point, IntelliFlo will stop managing flow, and will adjust speed to maintain 0,6 bar of head pressure. Note
the following:
• The % clean filter pressure has reached 100%
set the Clean Filter Pressure" on p. 22).
• If parameter is set to 0,6 bar, each increment of 10% on the display equals 0,1 bar
on the filter.
• The filter must be cleaned or backwashed to reduce the pressure. Even if the
system has a cartridge filter, the IntelliFlo must be started in Backwash Mode with
a clean filter to reset the fault and "zero" the IntelliFlo's filter status reading.
Note: For a complete list of IntelliFlo alert warnings, refer to "Alert and Warning" on
page 59.
IntelliFlo VF Installation and User's Guide
®
12:15
Filter
10
0,7
PSI bar
(See "Filter Mode" on p. 14, and "To
®
Alert
Service System Soon
12 months later, internal filter
pressure reaches 1,3 bar—an
increase of 0,6 bar as set in the
Clean Filter Pressure setting—
triggering "Alert"
24 1,3
bar
PSI
Filter
®
Alert
Service System Soon