Hale FoamLogix 6.5 - Manual (Page 142)

❑ Troubleshooting
142 FoamLogix 3.3 / 5.0 / 6.5 Installer / Operations Manual
p/n: 029-0021-68-0
❑ Hale FoamLogix is activated by pressing the power push button ( i ) on
the control display unit. (See Figure 5-1: “Control Unit Identification,” on
page 121.)
Once all the above conditions are met proceed to the system troubleshoot-
ing section to determine cause of malfunction.
NOTE: Hale FoamLogix system electronic components have no user serviceable
components inside and are replaced as a unit. Opening of Hale FoamLogix
electronic components voids the manufacturer’s warranty.
7.2 SYSTEM OVERVIEW
(See Figure 7-2: “FoamLogix, Closed Loop Flow Diagram.”)
Hale FoamLogix systems consist of individual subsystems working together
to provide finished foam solution at the proper percentage. The system is
designed using modular components simplifying troubleshooting and repair.
The FoamLogix 3.3,
5.0 or 6.5 is a “closed-
loop” system. The
brains behind the sys-
tem is the computer-
controlled FoamLogix
Control Display Unit.
As an electronic sys-
tem, the flow of data
“runs” the system.
Water flow data is fed
to the control unit.
Since the injection rate
(%) is preset, the con-
trol unit calculates the
required motor speed
for the foam pump and
sends this data to the
motor. The output of
the pump is measured
by a foam flow feedback sensor.
The foam flow feedback sensor tells the control unit how much foam is actu-
ally pumped so the control unit can make the required motor speed adjust-
ments. This “closed-loop” runs several times per second for optimum
accuracy.
Figure 7-2: FoamLogix, Closed Loop Flow Diagram