30
Filter Menu (Continued)
Clean Filter Pressure Example
Pool fi lters work by trapping dirt. At startup, when a pool fi lter is still clean, it registers an internal
pressure known as "starting pressure." As dirt builds up in the fi lter, internal pressure increases.
Eventually, the fi lter will need a) to be cleaned, or "backwashed", to remove the dirt if it is a sand or
D.E. fi lter, or b) to have its cartridges cleaned or replaced if it is a cartridge fi lter. This cleaning should
be done when the fi lter's internal pressure has reached between 0,6 and 0,7 bar above starting pressure.
NOTE:
"Clean Filter Pressure" is the increase in internal fi lter 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 fi lter, or clean/replace the fi lter cartridges.
In the example below, the internal pressure of the fi lter is 0,7 bar at startup when the fi lter is clean (starting
pressure). The "Clean Filter Pressure" is set to 0,6 bar.
®
Filter
12:15
10m³/h
FLOW
RUNNING Schedule
Pump newly installed and
system run for the fi rst 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 fl ow, and will adjust speed to maintain 0,6 bar of head pressure. Note
the following:
•
The % clean fi lter 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 fi lter.
•
The fi lter must be cleaned or backwashed to reduce the pressure. Even if the
system has a cartridge fi lter, the IntelliFlo must be started in Backwash Mode with
a clean fi lter to reset the fault and "zero" the IntelliFlo's fi lter 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
10
0,7
PSI
bar
Filter
(See "Filter Mode" on p. 14, and "To
®
Alert
Alert
Service System Soon
12 months later, internal fi lter
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
Alert
Service System Soon