22
AIM-OM-ATX-3, Rev. 2.1, 05/15
• Copyright Orenco Systems
®
, Inc. Property of Orenco Systems
®
, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843.
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
Maintenance (continued)
4. Splice the float wires to the wires from the control panel following
the wiring schematics provided in Appendix F. Attach the common
wire with the other commons using the waterproof wire nut. It may
be necessary to replace this wire nut with a new watertight wire
nut. Always use watertight wire nuts or heat shrink splice kits for all
connections!
5. Replace the float in the collar, using the same tether length, and
return the assembly to the pump vault.
6. Reconnect power and test the unit per the instructions provided in
the “Start-up & Operation” section of this manual.
Removing & Replacing Inoperative Pumps
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. Close the ball valve on the discharge plumbing assembly, disconnect
the union, and carefully remove the pump and attached plumbing
from the tank. Disconnect the pump from the discharge plumbing
assembly.
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 the water with a baster,
sponge, or other appropriate method. Loosen the cord grip at the
splice box and identify the appropriate splice for the pump. Cut out
the splices and label the wires.
3. Remove the inoperative pump and replace it with a new one of the
same type. Push the pump 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 pump.
Tighten the cord grip by hand, not by tool; then test the tightness
of the cord grip by tugging on the cord. A cable 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 easy removal for
future disconnecting and re-splicing.
4. Splice the pump wires to the appropriate wires from the control
panel following the wiring schematics provided in Appendix F. Always
use watertight wire nuts or heat shrink splice kits for all connections!
5. Reattach the discharge plumbing assembly and carefully lower the
pump into the flow inducer alongside the Biotube
®
pump vault. Be
careful not to lower the pump by the cable or to pinch the cable
when lowering it into the flow inducer. Reconnect the union and open
the ball valve.
6. Reconnect power and test the unit per the instructions provided in
the
“
Start-up & Operation” section of this manual.
