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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
f. Pump failure or bad electrical connection – Check the panel to
verify the motor contactor engages. If it engages but the pump
doesn’t operate, then it is either a pump failure or a bad electrical
connection.
g. Water in splice box or loose wires – Remove the access riser
lid and the stainless steel screws from the splice box lid, being
careful not to drop the screws into the tank. If the splice box was
submerged, or if there is a crack in the conduit, there may be
water in the splice box. If this is the case, remove the water with
a baster, sponge, or other appropriate method. Carefully check
the splices to ensure they are intact and remain watertight. If all
splices are found to be watertight, replace the splice box lid. In the
control panel, carefully tug on each wire going to the splice box.
Correct any wires that are loose. Reactivate and retest the system.
h. Leaks in tank or system – If the system operates but can’t keep
up with the flow, check the system for watertightness. A leaking
tank can infiltrate enough water to overcome the pump. Also
check for leaking fixtures in the facility or home, though it is
unlikely a leaky fixture could provide enough liquid to overcome
the pump.
Low Liquid Level Alarm
1. Determine the actual flows in the system. If the flows are
considerably less than the timer is set for, then adjust the timer
settings to match current flows. If a low level exists in the drainfield
pump basin, then ensure the minimum run time is appropriately set.
2. When a low liquid level condition exists, the source of the problem is
likely to be one of the following:
a. Ball valve mechanism jammed – Visually inspect the recirculating
valve and verify the liquid level in the tank is within the normal
range. Consult the design plans for proper operating level. If low,
the ball mechanism could be jammed in the seated position.
Remove, disassemble, and inspect.
b. Tank siphoning – Inspect the liquid level in the tank. If the liquid
level is below the “Redundant Off/Low Level Alarm” float, then
it is likely that the problem is either a leaky tank or siphoning.
Siphoning typically occurs when the system is pumping downhill.
A system will not necessarily siphon every time it operates. It is
dependent on the system design. A siphoning system can be
retrofitted with an anti-siphon valve. Most siphoning problems will
manifest in the first months of operation.
c. Tank leaks – If the hydraulics of the system do not allow for
siphoning, it is likely that the tank is leaking. Fill the tank to a
normal operating level and return to inspect the tank at a later
time. If the liquid level is below the normal operating level, the
tank is leaking and needs to be repaired or replaced.
d. Clogged pump vault cartridge – If the pump vault cartridge is
clogged, the pump may be high cycling, causing the liquid level in
the vault to drop faster than the liquid level in the tank. Remove
the filter cartridge and clean it in accordance with the instructions
provided in Appendix B.
Removing & Replacing Inoperative Floats
IMPORTANT!
Before doing any work on either the wiring to the
level control floats and pump or inside the control panel, switch off
the power to the system at the service entrance panel and set the
circuit breakers in the panel to their “OFF” positions.
1. Remove the float assembly from the vault. There is no need to move
the settings of the floats to remove and replace a float. After noting
the tether length, snap the inoperative float out of the holding collar.
2. Remove the stainless steel screws from the splice box lid, being
careful not to drop the screws into the tank. If the splice box was
submerged, or if there is a crack in the conduit, there may be water
in the splice box. If this is the case, remove water with a baster,
sponge, or other appropriate method. Loosen the cord grip at the
splice box and identify the appropriate splice for the float. Cut out
the splice and, if using a watertight wire nut for the common wires,
remove the appropriate common wire.
3. Remove the inoperative float and replace it with a new one. Push the
float cable through the watertight cord grip into the electrical splice
box. Leave an adequate length of electrical cord coiled inside the
riser to allow for easy removal of the float assembly. Do not remove
the colored markers or the paper tags from the float cords, and do
not try to thread the markers and tag through the cord grip. Tighten
the cord grip by hand, then test the tightness of the cord grip by
tugging on the cord. A cord is secure when the cord grip is tight
enough to prevent slippage. An adequate length of cord should be
left within the splice box to allow for future disconnecting and re-
splicing.
Maintenance (continued)
