9
Copyright Orenco Systems
®
, Inc. Property of Orenco Systems
®
, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843. •
AIM-OM-ATX-3, Rev. 2.1, 05/15
AdvanTex
®
O
&
M
MANUAL
C O M M E R C I A L T R E A T M E N T S Y S T E M S
Inspection Points (continued)
6.
Biotube
®
pump vault filter and floats:
Verify the pump vault
filter cartridge and float assembly are easy to remove for service
and maintenance. The ability to easily remove these components is
essential and depends upon careful installation in accordance with the
instructions provided in Appendix B. Set components on a plastic tarp
or sheeting when they are out of the tank.
a. Detach the float assembly from the housing, remove it from the
tank, and lay it aside. Verify there is enough slack in the cord for
easy removal.
b. Pull the filter cartridge out of the pump vault and remove the filter
cartridge from the tank. There should be ample clearance to allow
unhindered removal of the cartridge.
c. Test the floats,
starting with the
lowest float on the
assembly. Raise
each float to the
“up” position and
verify that the signal
is on for the correct
float by the audible
alarm and the alarm
input LED on the
circuit board in the panel. If your panel does not have alarm input
LEDs, check voltage coming into the panel from the float you
believe is activated.
NOTE:
The audible
alarm is delayed for 2
hours in TCOM control
panels.
d. Check the float
settings provided in
the plans against the
actual float settings. If
the plans don’t provide
float settings and the
engineer or system designer is unable to provide settings, set the
floats based on the following rules:
• Demand Dose:
– “Redundant Off” (RO) float is set 3 inches (76 mm) above
the filter cartridge or the minimum liquid level of the pump,
whichever is higher.
– “Pump Off” float is set 2 inches (50 mm) above the “RO” float.
– To calculate the “Pump On” float distance from the “Pump
Off” float, divide the desired dose volume by the gallons per in.
or liters per mm of the tank. Place the “Pump On” float that
many inches above the “Pump Off” float.
– “High Level” or “High Level/Lag Pump Enable” float is set at
2 inches (50 mm) below the invert of the tank inlet.
• Timed Dose:
– “RO” float is set 3 inches
(76 mm) above the filter
cartridge.
– “Timer On/Off” float is
set 2 inches (50 mm)
above the “RO” float.
– “Override Timer” float
is set 3 inches (76 mm)
below “High Level” float.
– “High Level” or “High
Level/Lag Pump Enable”
float is set at 2 inches
(50 mm) below the invert
of the tank inlet.
WARNING:
Pumps
have a 30-second
minimum run time.
We recommend a
drawdown differential
of at least 30 seconds
between the “Pump
Off” float and “RO”
float or the pumps
may continue to run,
resulting in a false low-
level alarm.
NOTE:
If you use the general float settings, you may need
to return at a later time and adjust float settings after the
system is in operation.
2"
50 mm
3"
76 mm
Invert of
tank inlet
Filter cartridge
or minimum
liquid level
2"
50 mm
3"
76 mm
RO
Timer On/Off
Override Timer
High Level
