20
WFS 1545 Operations Manual
This type of alarm indicate that some corrective action may need to be taken. But there is
not imminent likelihood of damage.
•
Illuminates the beacon
•
Illuminates the panel mounted alarm indicating light.
•
Sounds the audible alarm tone
•
Does not
stop the pumps and chiller
iii.
Class 1 Triggers
•
Leak
A leak has been detected and may indicate a serious problem.
•
Low Water Level
The water level in either the Dirty Side or the Clean Side has been below the sensors
for more than 6 seconds. This can result in pump damage.
NOTE: A low water fault will not clear unless the water level has been above the sensors for more than 3
seconds.
iv.
Class 2 Triggers
•
High Water Temperature
The temperature of the Process Water exceed 80
o
F. This may indicate a problem with
the chiller.
•
High Recirculating Pressure
Total head pressure at the recirculating pump exceeds 70 PSI. This may indicate the
need to change out the filter cartridges in one or more filters.
•
High Process Pressure
Total head pressure at the process pump exceeds 70 PSI. This may indicate the need
to change out the filter cartridges in one or more of the filters. It may also indicate an
obstruction to flow someplace in the line such as a partially closed valve.
b.
HMI Touch Screen
The HMI has three different screens where different information can be displayed or different
functions can be accessed. The different screens and functions can be selected using the
F
buttons.
i.
F1 ALM (Alarm Silence)
Pressing the F1 button on the screen will call up the Alarm Silence screen. Touching the
ALARM SILENCE button will stop the audible tone for 60 seconds. The button image will
change indicating that the silence mode has been selected. The beacon and panel light will
remain ill
u
minated. The alarm message on the F3 screen will remain displayed and the fault
will not clear until the Reset Button is pressed.
