35
Installation and Operation Manual
SystemsSystems
2001 and 2002
NOTE: ALWAYS REPLACE THE COVER
SCREW AND O-RING TO KEEP WATER AND
DIRT FROM ENTERING THE DIGITAL
DISPLAY CONTROL MODULE BECAUSE IT
CAN CAUSE SERIOUS DAMAGE TO THE
COMPONENTS.
The system will provide a full complement of
diagnostic functions to enable verification of all
system components. Refer to the electrical
diagram in Figure 33.
DIAGNOSTIC MODE FUNCTIONS
On entry to diagnostic mode, the display will
show “
HELLO
”. No other status indicator lights
will be illuminated. “
SELECT
” will select the
various modes, each indicated by the status
indicator light by the label. These diagnostic
modes include:
“None”
Pressing will illuminate all display
segments and status indicator lights.
“Flow”
The value shown is the current number of
flow pulses being received each second. If
no water is flowing, the value should be
zero. This is a function test for the
flowmeter. Removing the flowmeter sensor
from its tee and spinning the paddlewheel
should produce a reading other than zero on
the display. If there is no reading on the
display, connect the sensor directly to the
back of the Digital Display Control Module.
This test will determine if the flowmeter
sensor or extension cable is defective.
“Total Water”
The value shown reflects the level of the
liquid foam concentrate in the tank.
“Lo.Con” indicates that the tank is empty.
“Hi.Con” indicates a satisfactory level for
operation. This is a test of the low tank level
sensor and wiring.
“%” (Percent)
The value shown reflects the duty cycle to
run the foam pump. If “FOAM” is pressed,
the pump will be run at the selected rate and
the “ON” status indicator lamp will be
illuminated. The value may be altered with
or . This is a test of the motor control
box and pump hook up. Depressing the
will increase pump speed, which should be
audible and visible on the “TOTAL FOAM”
display.
“Total Foam”
The value shown is the current number of
pump pulses being received each second.
If the pump is not running, the value should
be zero. Increasing motor speed in "%"
mode should increase displayed value. This
is a test of the pump feedback sensor and
wiring.
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