26
Installation and Operation Manual
DISPLAY INFORMATION
The five-digit display on the Digital Display Control
Module shows the value of the selected display function
or provides warnings to the operator when the system
is operating. A function is selected by pressing the
black “SELECT” button in the upper right-hand corner
of the Digital Display Control Module. Each time the
button is pressed, a new function mode is selected
and displayed. A LED lamp above the digital display
denotes which function is being displayed. Pressing the
SELECT button changes the value displayed but does
not alter system operation.
The Display Functions include:
Flow
The display shows the current flow rate of water or
foam solution per minute.
Total Water
The display shows the total amounts of water or
foam solution pumped. This totalized value may be
reset. See “Reset Functions” paragraph.
% (Percent)
The display will show the foam concentrate injection
rate setting in the % mode.
Total Foam
The display shows the total amount of foam
concentrate pumped. The value will be in the same
unit of measure as the water flow. This totalized value
may be reset. See “Reset Functions” paragraph.
RESET FUNCTIONS
The totalized values for water and foam concentrate
pumped can be cleared from memory by performing a
RESET function. Using the “SELECT” button, select
either “TOTAL WATER” or “TOTAL FOAM”. By pressing
and holding both the and buttons at the same time,
the value shown is cleared and displayed as zero.
FOAM PERCENTAGE (%)
When the concentrate percentage (%) is selected, the
and buttons will respectively increase or decrease
foam concentrate percentage. The percentage can be
changed anytime during normal operation. Whenever
the or buttons are momentarily pressed, the
display will switch to the “%” display and show the current
percentage that is set, in any display mode. If either
button is held down for a period of 2 seconds, the value
will increase or decrease accordingly. Once released,
the display will return to the last selected display. When
a reset is performed in the % display mode (pressing
both the and buttons at the same time) the foam
concentrate injection rate is returned to the default value.
The default value is set during calibration.
DISPLAY MESSAGES
Several safety features are provided to protect the foam
concentrate pump and the electric motor.
Low Foam Tank Level
The pump is interlocked with the foam concentrate tank
level switch. If the tank is empty, the pump will not run
for more than 2 minutes. A low foam concentrate tank
level is denoted by “Lo Con” blinking on the display.
This code will alternate with the normal display value
shown. If two consecutive minutes of low concentrate
level is detected, the display will show “No Con”, the
pump will stop, and the system will go to Stand By
mode until the foam level is restored and the on button
is depressed.
Pump Error
Motor stall protection is provided. In the event that
the pump motor will not run or stalls for 10 seconds,
the display will show “ERR.EL” to indicate that the
pump is producing no feedback to the control signal.
The system will return to off status to protect the
electric motor and components. Please refer to the
Trouble-Shooting Guide on page 33 for further information.
High/Low Flow Condition
Whenever the foam pump cannot reach the selected
level an indication of the status will blink in the
background as:
“Lo.Flo” – Foam delivery rate is below pump capability.
“Hi.Flo” – The water delivery rate is too high for the
foam pump’s capacity.
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