Orenco AdvanTex AX20-RT User manual

Installation Manual
NIM-ATX-AXRT-1
Rev. 1.0, © 1/10
Orenco Systems®, Inc.
AdvanTex®-AX20-RT
Treatment Systems
An illustrated guide to installing
an Orenco AdvanTex®AX20-RT
Treatment System.
®
800-348-9843
541-459-4449
www.orenco.com
www.vericomm.net
Orenco Systems
Incorporated
Changing the Way the
World Does Wastewater®
Residential Applications

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
Table of Contents
Products described in this manual are covered by one or more of the following U.S. Patents: 6,540,920; 6,372,137; 5,531,894; 5,492,635; 5,480,561; 5,360,556;
4,439,323. Products are also covered by foreign patents.
1
Before You Begin
As the installer of an onsite wastewater treatment
system, you play a crucial role. Homeowners,
neighbors, service providers, regulators, Dealers,
manufacturers ... we all rely on your expertise
and good work. At Orenco, we’ve worked hard to
make your installation as easy and “hassle-free”
as possible.
We’re very proud of this wastewater treatment
system. Like all our products, the AdvanTex®
AX20-RT Treatment Unit has gone through
extensive research, development, and field-test-
ing. Then each component is built to written spec-
ifications and subjected to quality review before
shipping. If this system or any of its components
possesses flaws that would inhibit its proper func-
tioning, please contact your authorized AdvanTex
Dealer. The Dealer can also provide repair and replacement instructions and replacement components. If there is no
authorized AdvanTex Dealer in your area, call Orenco Systems®, Inc. at 800-348-9843 or [phone].
Property owners, neighbors, regulators, Dealers, manufacturers, and
service providers all depend on your careful installation.
Before You Begin ............................................................. Page 1
Overview ..................................................................... Page 3
Installation Steps
Step 1: Review or Sketch Site Plans ............................................. Page 4
Step 2: Excavate and Set Primary Tank ........................................... Page 5
Step 3: Install Risers and Water Test Tank ......................................... Page 5
Step 4: Install Effluent Filter .................................................... Page 6
Step 5: Excavate and Set AX20-RT Unit .......................................... Page 7
Step 6: Prep and Install Counterbuoyancy ......................................... Page 8
Step 7: Partially Backfill AX20-RT Excavation..................................... Page 9
Step 8: Test Watertightness of AX20-RT Unit ...................................... Page 9
Step 9: Connect Transport Line and Passive Air Vent ................................ Page 10
Step 10: Install and Test Control Panel ............................................. Page 11
Step 11: Test System Function ................................................... Page 14
Step 12: Complete Final Backfill ................................................. Page 15

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
2
This manual covers installation of all models of our AdvanTex AX20-RT Treatment Units. In addition to this man-
ual, the installation manual for the system’s electrical control panel describes installation, wiring, and operating
instructions for Orenco control panels. Please read all other control panel documentation, as well.
It’s important that you read through this entire manual before beginning the installation. And make sure you have
the correct equipment, materials, tools, and training to perform this installation. Please note that you must perform
the installation according to the current manual to keep the warranty in force.
Once you become familiar with the installation process, you should be able to install an AdvanTex AX20-RT unit
in less than half a day, not counting the time to install the tank and dispersal system.
Conditions for Using an AX20-RT to Repair an Existing System
Before you install an AX20-RT to repair or upgrade an existing septic system, be sure that the following conditions
are met:
 • The existing primary tank must be Orenco-approved and must meet all applicable regulatory requirements.
(No pour-in-place tanks, no homemade tanks, etc.)
 • Theexistingprimarytankmustbestructurallysound.
 • Theexistingprimarytankmusthaveatleast1000gallons(3800liters)capacityatthenormaloperating
level (1000 gal. or 3800 L below the invert of the outlet).
 • Theexistingprimarytankmusthaveanat-gradeaccesswithasecurableandremovablelid.Ifitdoesn’t,an
at-grade access must be installed onto the primary tank and be made watertight.
 • Theprimarytankmustbetestedforleakagetoaheightofatleast2inchesintotheriser,anditmusthold
water for at least sixty minutes.
 • AnOrencoeffluentfilterwithatleast5ft2of filter area must be installed and accessible in the existing
primary tank (models FT0822-14B, FTW0444-36V, or FTS0444-36V ).
 • Thedepthofburialoftheexistingprimarytankmustallowforafallofatleast1⁄8in. per foot (10 mm per
meter or 1%) from the outlet of the existing primary tank to the inlet of the AX20-RT unit if the primary tank
uses a gravity discharge. If sufficient fall cannot be met, a pumping system will need to be installed in the
existing tank to move the filtered effluent to the AX20-RT unit. (Contact Orenco for assistance.)
Important Notes
 • AlltanksusedwithAX20-RTTreatmentUnitsmustbeprequalified.CallyourlocalDealerforspecifics.
 • Thebackwashdischargefromasalt-typewatersoftenerMUSTNOTbeplumbedintoanAX20-RTTreatment
  Unitortheprecedingseptictank.Failuretofollowthisinstruction,oranyotherinthismanual,willvoidthe
  system’swarranty.ContactyourAdvanTexDealerifyouhaveanyquestionsabouthouseholdplumbing
  arrangementsthatmayinterferewiththefunctioningofthesystem.
 • AllpipediametersgivenareU.S.nominalIPSpipesizes.Ifyouareusingmetricpipe,youmayneed
  adapterstoconnecttotheU.S.fittingssupplied.
 • IfyouarenotatrainedAdvanTexInstaller,contactyourlocalAdvanTexDealerorOrencofortraining
  beforeinstallingthissystem.

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
3
Concrete septic tank and AX20-RT (pump discharge model) shown
Overview
The AdvanTex®AX20-RT Treatment System has 10 main functional areas and components:
1. Septic Tank Inlet Tee 6. Textile Media
2. Biotube®Effluent Filter 7. Tank Baffle
3. Biotube Pump Package 8. Recirculating Treatment Tank (discharge side)
4. Recirculating Treatment Tank (recirc side) 9. Flow Inducer and Discharge Pump Assembly (pump discharge only)
5. Manifold and Laterals 10. Control Panel (not shown)
Raw sewage enters the septic tank through its inlet tee. In the septic tank, the raw sewage separates into three dis-
tinct zones: a scum layer, a sludge layer, and a clear layer. Effluent from the clear layer passes through a Biotube®
effluent filter and is discharged by gravity to the recirculating treatment tank portion of the AX20-RT unit, which
contains a Biotube Pump Package. The Biotube Pump Package pumps filtered effluent from the recirc side of the
AX20-RT unit’s recirculating treatment tank to the distribution manifold in the top of the unit. Effluent percolates
down through the textile media and is distributed — by means of a tank baffle — between the recirculating side
and the discharge side of the AX20-RT recirculating treatment tank.
The operation of the pump on the recirc side of the tank baffle is controlled by a timer in the control panel, which
allows the pump to dose the textile media for short periods (usually a half-minute or less), typically 72 times a day.
This frequent “microdosing,” which optimizes the treatment process, occurs 24 hours a day, to maintain the proper
biological environment.
1
2 3
4
5
6
7
8
9
Inlet
Septic Tank AX20-RT Unit
Outlet

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
4
Step 1: Review or Sketch Site Plans
Before starting the installation, familiarize yourself with the site
plans and specifics of your installation. If you are installing the
AX20-RT unit more than 20 feet (6 meters) away from the tank,
contact your Dealer or Orenco for assistance.
1a) Detailed Site Plans Provided:
If you are installing the AX20-RT according to a set of detailed
plans, we recommend that you make sure that your plans
accurately reflect conditions at the site. If there are differences
between the physical site and the plans, we recommend you con-
tact the Designer before scheduling the installation.
1b) No Site Plans Provided:
If you are installing the AX20-RT without detailed site plans, or
with plans of limited detail, contact your local Dealer or Orenco
for design assistance.
• Determine and sketch the exact positions of the primary tank and
AX20-RT unit on the site. Account for current and likely future land-
scape features in your sketch.
• Be sure to position the tank and unit to allow for a minimum 1⁄8in. per
foot (10 mm per meter or 1%) in the line from the outlet of the primary
tank to the inlet of the AX20-RT unit, if the primary tank uses a gravity
discharge.
• Determine and sketch the layout of your pipes, electrical conduits,
and other critical buried elements. Provide measurements and dis-
tances on the sketch as accurately as possible.
• Sketch the placement of the control panel. (See Panel Installation,
EIN-CP-GEN-1, for installation recommendations.)
Cleanout
Control
panel
Residence
Septic tank
Outlet
riser
AX20-RT
unit
Septic tank
outlet
Conduit
seals
Passive
vent
Discharge to drainfield
Wire
runs
Sample sketch of a possible AX20-RT system layout
5 ft.
2 ft.
21 ft. 13 ft.
6ft.
1b

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
Step 2: Excavate and Set Septic Tank
This section covers excavating a hole for the septic tank and set-
ting the tank. For information on excavating a hole for the AX20-
RT unit, see Step 4.
Consider the necessary elevations and grade requirements for the
tank and the AX20-RT unit before excavating the hole for the
septic tank.
The septic tank must be set deep enough to allow for a minimum
slope of 1⁄8in. per foot (10 mm per meter or 1%) from the outlet
of the septic tank to the inlet of AX20-RT if the septic tank uses a
gravity discharge. Also, keep in mind that the AX20-RT needs to
sit 2 inches (50 mm) above final grade.
Step 2a: Outline an excavation area (with chalk, paint, string, etc.)
for the tank.
Step 2b: Excavate the hole for the septic tank following the
tank manufacturer’s recommendations. Remember that you need
the correct depth for a consistent slope of 1⁄8in. per foot
(10 mm per meter or 1%) from the septic tank outlet to the inlet
of the AX20-RT.
Step 2c: Make sure the bottom of the excavation is free of
debris, especially rocks and other sharp objects. If the bottom of
the excavation is uneven or rocky, lay a 4-in. (100-mm) bed of
sand or pea gravel and compact the material to create an even,
smooth surface.
Step 2d: Set the tank following the manufacturer’s instructions.
Follow the tank manufacturer’s guidelines for watertight testing,
antiflotation measures, and backfilling to the level of the top of
the tank. Do not backfill past the top of the tank at this time.
Step 3: Install Risers and Water Test Septic Tank
NOTE: Thissectioncoversriserinstallationsonseptictanks
usinggravitydischarge .ContactOrencoforriserinstallations
onseptictanksusingpumpdischarge.
Step 3a: Be sure you are installing the right size risers for your
application and the size of the tank opening.
Step 3b: Wipe the areas to be bonded with a clean rag to ensure a
clean, dry bonding surface.
5
2b
2b

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
6
Step 3c: To bond the riser to the riser tank adapter, you can use
either ADH100 or methacrylate adhesive alone. However, because
ADH100 does not provide a structural joint for approximately 24
hours, we recommend the use of both adhesives. If you use both,
apply methacrylate adhesive to the outside surface of the riser
tank adapter for a quick (usually an hour or less) structural joint.
Step 3d: Carefully slide the riser onto the adapter. Correctly ori-
ent the riser before the adhesive starts to set.
Step 3e: Apply a bead of adhesive to the inside of the adapter
and riser joint;then use a putty knife or similar tool to form a con-
tinuous fillet between the tank adapter and the inside of the riser.
Step 3f: After the adhesives have hardened, fill the tank with
clean water to a level 2 in. (50 mm) above the adhesive joint in
the riser, to test the watertightness of the tank and the riser joint.
Do not allow the water level to rise more than 3 in. (76 mm)
into the riser because structural damage to the tank may occur.
The inlet and outlet pipe into the tank needs to be turned up or
plugged to allow the tank to be filled.
CAUTION: Checkthetankmanufacturer’sguidelinesbefore
watertestingthetank.Sometankmanufacturersrequireapartial
orcompletebackfillbeforeatankiswatertested.
Step 3g: When the tank proves watertight, drain the excess water
to the tank manufacturer’s recommended level.
Step 4: Install Effluent Filter
Install the effluent filter after the tank has been water tested.
Step 4a: Test-tthe efuentlterontheseptictank’soutletpipe
withoutgluing.Makesureittsplumb.Makesurethelterwill
tassnugtothetankwallaspossiblewhileensuringsufcient
clearanceforremovingtheltercartridge.
Step 4b: Securetheltertotheoutletpipe.Twoattachment
methods can be used:
• Youcangluethelterontothetankoutletpipeusingappro-
priate primer and glue.
• Youcanuseastainlesssteelsetscrewtosecurethelter.
Step 4c: For easier access when servicing, you can extend the
cartridge handle with a longer length of ¾-in. Sch 40 PVC pipe.
Carefully slide the riser onto the adapter.
Orenco®effluent filter installed on the septic tank outlet
3e
3d
4

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
7
Step 5: Excavate and Set AX20-RT Unit
Before installing the AX20-RT, consider the depth of the septic
tank and the height of the septic tank outlet. Remember that there
must be a minimum 1⁄8in. per foot slope (10 mm per meter or 1%)
from the outlet of the septic tank to the inlet of the AX20-RT, if
the septic tank uses a gravity discharge. Also, remember that the
AX20-RT lid needs to sit 2 in. (50 mm) above finished grade, to
allow for settling and drainage. Take into account any planned
landscaping that might affect the finished grade of the system.
NOTE: Ifyouareinstallingcounterbuoyancyflanges,com-
pletestep6abeforesettingtheAX20-RTunit.
Step 5a: Mark the outline of the excavation. The excavation
needs to extend 18-24 inches beyond all four sides of the unit.
Step 5b: Excavate the hole for the unit. The AX20-RT unit height
is 72 in. (1830 mm). Make sure that the unit will be set deep
enough to facilitate a minimum slope of 1⁄8in. per foot (10 mm per
meter or 1%) from the septic tank if the septic tank uses a gravity
discharge. Also make sure that the lid will be 2 in. (50 mm) above
final grade after the hole for the unit is excavated and after a com-
pacted bed of aggregate or pea gravel — if necessary — is laid.
Step 5c: Make sure the bottom of the excavation is stable and
free of debris, especially rocks and other sharp objects.
 • Ifthe base soil is unstable (peat, quicksand, muck, soft or
highly expansive clay, etc.), overexcavate the site depth and
then set a firm, 6-in. (152-mm) compacted base of ½-in.- to
¾-in.-minus (13- to 19-mm) aggregate or pea gravel. In ex-
tremely unstable soil, a concrete layer may be needed to stabi-
lize the bottom of the excavation. If you have any doubt about
the soil’s ability to support the tank,consult a local civil or
structural engineer.
 • Ifthe base soil is rocky or uneven, lay a 4-in. (100 mm) bed
of sand or pea gravel less than 3⁄8in. (10 mm) in diameter, and
compact the material to create an even, smooth surface.
Step 5d: Use properly sized lifting equipment to attach a chain or
cable to the two lifting brackets on the top of the AX20-RT unit.
Carefully lift and lower the unit into the excavation. When the unit
is set and level in the correct position, remove the chain/cable.
WARNING: Do not allow workers to stand in or near the
excavation while placing the unit!
CAUTION: Usealiftingdevicethatwillnotdamagetheunit
orthelidoftheunit.
2 in. (50 mm)
5a
5b
62 in.
(1.57 m)
102 in.
(2.6 m)
5d
5d
Excavate 18-24 in. (457-610 mm) beyond all four sides of
the unit.
Excavate so that the lid sits at 2 in. (50 mm) above final grade.

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
8
Step 6: Prep and Install Counterbuoyancy
Because of the shallow burial depth of the AX20-RT, you may
need to install counterbuoyancy measures on the unit, especially
if the site has seasonally high groundwater. If you are unsure
whether or not your installation requires counterbuoyancy mea-
sures, contact your Dealer or Orenco.
There are two types of counterbuoyancy offered by Orenco, fac-
tory counterbuoyancy flange kits or counterbuoyancy tie-down
hardware kits.
6a) Counterbuoyancy Flanges:
1: Using properly-sized lifting equipment, Raise the AX20-RT
unit 3-4 in. (75-100 mm) off of a flat, level surface.
2: Lightly sand the contact surfaces on the upper surfaces of the
flanges and the bottom of the AX20-RT, and then clean the sand-
ed surfaces with acetone and clean, dry, lint-free rags.
3. Apply a ¾-in. (19-mm) bead of SS115 or SS140 adhesive
down the length of each flange.
4. Slide the flanges under the AX20-RT unit, and then lower the
unit onto the flanges. Allow the adhesive to set before moving
the AX20-RT.
6b) Counterbuoyancy Tie-Downs:
Orenco’s tie-down counterbuoyancy hardware kits are for use
with concrete forms. Sections of 12-in. diameter PVC half-pipe
or chamber material can be used as forms; simple forms 12 in.
wide × 6 in. high × 4 ft long (305 mm × 152 mm × 1.22 m) can
be built from wood.
NOTE: Tosavetime,werecommendpreparingthecounter-
buoyancymeasuresoffsitebeforeyouinstalltheunit.
1: Fill the forms halfway with concrete, and then place two #4
reinforcing bars in each of the forms.
2: Finish filling the forms with concrete.
NOTE: Waitfortheconcretetosetcompletelybeforelifting
thecounterbuoyancymeasures.
3: Use appropriate lifting equipment to set the pieces in place.
4: Secure the pieces to the unit with the supplied cables and
hardware.
Counterbuoyancy tie-down cables and half-pipe con-
crete forms
Two #4
rebar
Cable
12 in.
(305 mm)
6b
6 in.
(152 mm)
4 ft
(1.22 m)

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
9
Step 7: Partially Backfill AX20-RT Excavation
Step 7a: Fill the AX20-RT unit with about 16 in. (410 mm) of
water for internal support. Be sure to fill on both sides of the tank
baffle.
Step 7b: Backfill around the unit with a 16-in. (410-mm) layer
of backfill material. Native material is acceptable if there are no
large or sharp rocks that may damage the unit walls. If native
material is not usable, backfill with ½-in. aggregate or pea gravel.
Do not backfill with sand. Use a mechanical compactor to thor-
oughly compact the fill, to minimize settlement and provide sup-
port for the walls of the unit.
Step 7c: After the first layer of backfill is complete, fill the tank
with water to just above the midseam flange on both sides of the
tank baffle and then add another 16-in. layer of backfill. Compact
the backfill so that the backfill level is 2-3 in. (50-75 mm) below
the midseam flange.
Step 8: Test Watertightness of AX20-RT Unit
Step 8a: After backfilling the AX20-RT excavation to just below
the midseam flange, make sure that the unit is filled with water
to at least 1 in. (25 mm) above the midseam flange on both sides
of the tank baffle.
Step 8b: Wait at least 15 minutes and then inspect the midseam
of the unit for leaks. There should be no drop in liquid level and
no visible leakage from the seam.
8a
7c
Backfill and compact to 2-3 in. below midseam.

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
10
Step 9: Connect Transport Line and Passive Air Vent
NOTE:DO NOTuseprimeronABSparts.
Step 9a: Dry fit the 4-in. (100-mm) transport line and any fit-
tings between the outlet of the septic tank and the inlet on the
AX20-RT unit. Make sure that you maintain a 1⁄8in. per foot
(10 mm per meter or 1%) slope from the septic tank if the septic
tank uses gravity discharge.
Step 9b: Glue all of the transport line pieces in place.
Step 9c: Use 2-in (50 mm) PVC pipe to plumb the passive air
vent to the 2-in. (50 mm) vent fitting that protrudes from the out-
let side of the AX20-RT unit. Be sure the vent line is sloped to
drain towards the unit and that the passive air vent is within 20 ft
(6 m) of the unit. After installation, the top of the passive air vent
should be a minimum of 3 in. (75 mm) above final grade.
Step 9d: We recommend installing the passive air vent near a
wall or in a similar location where it is less likely to be damaged
byalawnmoweroraccidentalkicking,etc.Youcaneasilyhide
the air vent behind shrubbery or other landscaping and paint it if
another color is desired.
IMPORTANT: Inallcases,thelinebetweenthepassiveair
ventandtheunitmustbeslopedback¼in.perfoot(20mmper
meter) towardtheunit.Topreventaccumulationofwater,donot
allowany“bellies”orlowpointsintheventpiping.Keepthe
2-in.ventpipinglessthan20ft(6m)intotallength.
9a
9c
9
4-in. (100 mm)
transport line
Passive
air vent

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
11
* If the installation instructions are missing from the control panel, find the product model code,
located on a sticker inside the panel door. Then call your local Dealer or log in to our online
Document Library at www.orenco.com and download a copy of the installation instructions
(Category “Instructions, Electrical”). You can also call Orenco for a replacement.
10b
Step 10: Install and Test Control Panel
Install Control Panel:
For complete control panel installation instructions, see the
installation manual for the electrical control panel that comes
with your system. Instructions specific to your control panel ship
inside of the control panel.*
Step 10a: Make sure the the items supplied conform to state and
local regulations.
Step 10b: A qualified and licensed electrician should install and
service the panel and ancillary wiring in compliance with the
National Electrical Code, as well as state and local codes. (Wir-
ing diagrams can be found in the installation manual* that comes
with the panel.) Wiring will include the following items:
a) Incoming power to the panel. One or more circuits may be
required, depending upon the number of pumps and local
electrical codes.
b) Incoming phone line to the panel (for VeriComm®control panels)
c) Wiring from the control panel to the pump and floats
d) Wiring to a discharge pump and floats (if applicable)
NOTE: We do not recommend installing a control panel against
thewallofabedroom,livingroom,orotherlivingspacebecause
itmakesaperiodicthumpduringoperation.Ifitmustbeplaced
nearthehouse,mountiton4×4(100×100mm)pressure-
treatedpost(s)nexttothewall.
Test Control Panel:
VeriComm®(VCOM) telemetry-enabled panels are used for
remote monitoring and control of AX20-RT pumping operations.
Fault conditions are automatically reported to the VeriComm
Monitoring System, making the system virtually invisible to the
homeowner. However, if fault conditions are not responded to, or
if the system cannot communicate with the VeriComm Monitor-
ing System, then local alarms may be activated.
Perform the following procedures to verify proper installation of
the VeriComm panel.
NOTE: Formoredetailedproceduresspecifictoeachpanel
model,refertothedocumentationthatcomeswiththepanel.*
Step 10c: Familiarize yourself with the components of the
telemetry control board.
10c
10c

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
12
10f
Top float:
High water alarm
Float tether
Middle float:
Override timer
Bottom float:
Low water alarm/
redundant off
VeriComm®Recirculating Float Assembly shown
Step 10d: Make sure the panel has been completely and cor-
rectly installed, and verify that the circuit breakers are in the
“On” position. Also check the controller status. The power LED,
located on the control board, will be:
• Blinking,whichindicatesthecontrollerisoperatingnormally,or
• Off(whenpowerisapplied),whichindicatesapossibleproblemwith
~ the input fuse on the PC board;
~ the main fuse located inside the panel;
~ the controls circuit breaker located inside the panel; or
~ the incoming line voltage.
Step 10e: To enable Test Mode, hold the “Push-To-Silence”
button on the front of the panel until the audible alarm sounds
(approximately 15 seconds).
• Theappropriatedigitalinputshouldbeilluminatedwhenthebutton
is held in.
• WhentheaudiblealarmsoundstoindicatethatthepanelisinTest
Mode, release the button.
While in Test Mode, the panel will operate in the following
manner:
• Thecall-infunctionisdisabled;
• Localaudibleandvisualalarmsareactivatedasalarmconditions
occur;
• SystemDataLogsaresuspended;and
• Timercyclesareshortened.
Step 10f: Familiarize yourself with the floats on the system.
Step 10g: Verify that the pump is submerged in water before
continuing. If the bottom float drops, the alarm should sound.
Press down the spring-loaded “AUTO/OFF/MAN” switch locat-
ed inside the panel. The pump should immediately activate. For
verification, the appropriate digital input should illuminate, indi-
cating that the auxiliary contact is on.
Measure the voltage and amperage of the pump.
a) Measure the voltage at the pump terminals in the panel. Measuring
the voltage with the pump off will confirm that the correct voltage is
connected. Then activate the pump by toggling the AUTO/OFF/MAN
switch to MAN, or using a PDA or laptop with the Bluetooth Device,
and measure the voltage while the pump is running. The maximum
recommended voltage drop is 3%. A low voltage condition may indi-
cate that the site wiring is improperly sized.
b) Using a loop ammeter, place the ammeter clamp around the loop of
wire located above the pump circuit breaker and read the amperage
while the pump is running and connected to the discharge assem-
bly with the valves at the end of the laterals closed. The amperage
should be within the specifications of the pump.
10g
Measure voltage
10g
Measure amperage

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
13
Step 10: Install and Test Control Panel (cont.)
Step 10h: Refer to the control panel documentation to test the
floats that activate/deactivate the pump. To perform the float test,
make sure there is enough liquid in the tank. If there isn’t enough
liquid in the tank, turn the pump circuit breaker off.
NOTE: If phoneservicetothepanelisactive,completestep10i.
Ifnot,proceedtostep10j.However,phoneserviceshouldbe
activatedbeforesystemstart-up.
Step 10i: Press and release the “Push-To-Silence” button 15
times within a one-minute period. This instructs the panel to call
the VeriComm Monitoring System.
• AredLED(“ModemActivity”component)shouldilluminate,indicat-
ing that the controller has established communication with the host.
(This may take a few minutes.)
• Oncethecommunicationsessionhasended,themodemwillauto-
matically disconnect.
• IftheLEDdoesnotilluminatewithinthespecifiedtime,verifythatthe
phone line has a dial tone. This can be done by hooking up a phone
to the line that is going into the panel.
Step 10j: The panel will automatically disable Test Mode and
return to normal operation after 30 minutes. To disable Test
Mode manually, hold the “Push-To-Silence” button on the front
of the panel until the audible alarm sounds (approximately 15
seconds). The appropriate digital input should be illuminated
when the “Push-To-Silence” button is held in. When the audible
alarm sounds to indicate that the panel is no longer in Test Mode,
release the button.

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
14
Step 11: Test System Function
Once power is connected to the control panel, follow these steps
to prepare the system for operation.
IMPORTANT: Beforeusingageneratortooperateapump,
contactOrencooryourDealertomakesureitcansupplysuffi-
cientstartingamperage.
NOTE: Whentestingpumps,alwaysmakesurethereisenough
waterintheunittosafelyrunthepumps.
Step 11a: Open the manifold valve and the lateral ball valves
and then toggle the “AUTO/OFF/MAN” switch for the recirc
pump to “MAN” for 5-10 seconds to flush any debris out of
the manifold and laterals. Close the lateral ball valves. With the
recirc pump still in “MAN,” remove several orifice shields and
measure squirt height. Squirt height should measure between
3-5 ft (0.9-1.5 m). Windy conditions will cause a lower squirt
height. When finished, return the “AUTO/OFF/MAN” switch to
“AUTO.”
NOTE: Ifthedesiredsquirtheightisnotachievedortheunit
doesnotpressurize,checkfordebris,breaks,orclosedvalves.
Alsoverifythatthepumpisreceivingsufficientpower.Iftheunit
stilldoesnotpressurizecorrectly,contactyourDealerorOrenco
fortechnicalassistance.
Step 11b: Place the panel in Test Mode. Check the function of
the recirc pump floats by lifting the low-level, mid-level, and
high-level float in turn and verifying that the pump cycles on and
off for each. If the unit is not equipped with a discharge pump,
take the control panel out of Test Mode at this time.
Step 11c: If the unit has a discharge pump, make sure there is
enough water on the discharge side of the tank baffle for the
pump to run. Make sure the panel is in Test Mode. Check the
function of the discharge pump floats by lifting the low-level,
mid-level, and high-level float in turn and verifying that the
pump cycles on and off for each. When you are finished, take the
control panel out of Test Mode.
Step 11d: Close and bolt down the AX20-RT unit lid when you
are finished.
11a
Measure squirt height.
Open the manifold valve and lateral valves.
Manifold
valve
Lateral ball valve
(six total)
11a

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
15
Step 12: Complete Final Backfilling
IMPORTANT: When backfilling,becarefulnottoalterthe
slopeofpipes.Bracethepipesorplacethepipesonacompacted
bedandcarefullyfillaroundthem.
NOTE:Before backfilling,makesuretheAX20-RTunitlidand
allriserlidsarebolteddown.
Step 12a: Backfill the septic tank excavation if it has not yet
been done. Follow the tank manufacturer’s guidelines for back-
filling.
Step12b: Backfill and compact around the AX20-RT unit in
maximum 12-in. (305-mm) lifts. Native material is acceptable if
there are no large or sharp rocks that may damage the unit walls.
If native material is not usable, backfill with sand or pea gravel.
For installations in non-cohesive soils* with high seasonal
watertables,use¼-in.crushedrockasthebackllmaterial.
The top of the AX20-RT lid should sit 2 in. (50 mm) above
nalgrade.
IMPORTANT: Afterbackfilling,callthesystem’sService
ProvidertoarrangefortheofficialSystemStart-up.
*As described in OSHA Standards (29 CFR, Part 1926, Subpart P, Appendix A), noncohesive
soils or granular soils include gravel, sand, or silt with little or no clay content. Granular
soil cannot be molded when moist and crumbles easily when dry. Cohesive soils include
clayey silt, sandy clay, silty clay, clay, and organic clay. Cohesive soil does not crumble,
can be excavated with vertical sideslopes, is hard to break up when dry, and when moist,
can be rolled into threads without crumbling. For example, if at least a 2-in. (51-mm) length
of 1/8-in. (3-mm) thread can be held on one end without tearing, the soil is cohesive.
12b
Backfill the AX20-RT in 12-in. (300 mm) lifts
Maintain minimum 1/8in.
(10 mm or 1%) slope
2 in. (50 mm)
above final grade

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
16
Notes
17

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
Notes
17

Installation Manual: AdvanTex®AX20-RT Treatment Units
NIM-ATX-AXRT-1
Rev. 1.0, 1/10
© 2010 Orenco Systems®Inc.
Notes
18

Installation Guide
NIM-ATX-AXRT-1
Rev. 1.0, © 1/10
Orenco Systems®, Inc.
AdvanTex®-AX
Treatment Systems
Residential Applications
®
800-348-9843
541-459-4449
www.orenco.com
www.vericomm.net
Orenco Systems
Incorporated
Changing the Way the
World Does Wastewater®
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AdvanTex Treatment System AXN Models
meet the requirements of ANSI-NSF
Standard 40 for Class I Systems.