Sterling OXY3 Series, OXY3-15, OXY3-10, OXY3-20, OXY3-30 Installation Instructions And Owner's Manual
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Installation Instructions and Owner’s Manual
OXY3 Series
Iron Reduction System
Sterling Water Treatment
12630 US Highway 33 N
Churubusco, IN 46723
Phone (260) 693-1972 Fax (260) 693-0602
www.sterlingwatertreatment.com
OXY3 Instruction Manual 112310.docx
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Preinstallation Instructions
Description of the iron filtration system
The OXY3 iron filtration syst em includes an aeration tank , a filtration tank and a backwashing control
valve. Incoming water flo ws into the c ontro l val ve and is direc ted into t he aer ation tan k . Exposur e to the air i n
this tank will start oxidizing the iron. The water then flows through the back connector tube and into the filtration
tank where the oxidi zed iron is trapped by the media. T he iron-free water then returns to the control valve
where it is directed into the service lines.
Periodically the contr ol valve will go through a back wash cycle. This cycle will t ypically begin at 1:00
A.M. flushing the accum ulated iron to the drain. Part of this backwashing proc ess includes an air dra w cycle
which will replenish the pocket of air in the aeration tank and prepare the unit for the next period of service.
Water Quality
While the OXY3 filter will perf orm under a variet y of water qualities there are a fe w things that need to
be considered to ensur e s ati sfactory performance. The water should be t es ted t o determine the conc entration,
or levels of the items listed below.
pH - A measurement of the acidity of the water. pH is r eported on a scale from 0 to 14. Neutr al water
has a pH of 7.0, lower values indicate ac idic water. The OX Y3 iron filt er perform s best when the pH is 7.0, or
higher. pH values below 7. 0 r equire a s pec ia l media blend in the filter in order to ele v ate the pH for proper iron
oxidation.
Iron - A naturally oc c urr ing metallic element. Iron c onc e ntr ations in excess of 0.3 milligram s/liter (mg/l)
combine with oxygen causing or ange or red (rust) stains on plumbing fix tures. Iron naturally exists in some
water sources in either clear water ( f errous ) state, red wat er (f er ric ) state or bac terial f orm. The OXY3 iron filter
can reduce any of these forms of iron.
Manganese - A naturally occurring metallic element. Manganese concentrations as low as 0.05
milligrams/liter (m g/l) can com bine with oxygen t o cause dark br own or black staining on f ixtures . Additiona lly,
manganese can cause an odor in the water similar to a “rotten egg” smell. The OXY3 iron filter reduces
manganese as well as iron, however, manganese oxidation requires the pH of the water to be elevated to 8.2 or
higher. Special OXY3 media blends are available to elevate the pH of manganese bearing waters.
Tannin - A naturally occurring humic acid. Tannin is an acid caused by water passing through decaying
vegetation. Coffee and Tea are prime examples of tannin in water. As hot water passes over the coffee beans,
or tea leaves, the tannin is extracted causing color and flavor in the water. Tannin concentrations as low as 0.3
milligrams per liter c an cause a yellow discoloration in th e water and may interfere with the OXY3 iron f ilter’s
long-term ability to remove the iron as the media becomes coated with the tannic acid.
Hydrogen Sulfide - A natur ally occurring gas. Hydrogen sulfide, more comm only referred to as sulfur
gas, causes a distinct odor similar to “rotten eggs.” Due to its gaseous nature, h ydrogen sulfide must be tested
at the well site within 1 m inute of drawing the sam ple. If a water s ample has been s itting for a while the sulf ur
gas will dissipate a nd cause the hydrogen sulfide test to be lower than the ac tual concentration. If s ulfur is
present, the filter should be set to backwash m ore frequently to prevent the gas from building up. T he OXY3
iron filter can typically treat up to 2 to 3 milligrams per liter of sulfur gas.
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Water Supply
Draw Down (gallons)
X
60 = Pumping Rate (gallons per minute)
Cycle Time (seconds)
8 gallons
X
60
=
7.4
65 seconds
Unlike other iron filters that do not use chemicals to oxidize the iron, the OXY3 iron filter does not require
additional plumbing such as solenoid valves, pressure switches or pressure tanks. This filter will function
properly when the water supply is furnished by a jet pump, submersible pump, variable speed (constant
pressure) pump or com munity water supply. As with all other f ilter systems , however, it is imperative t hat the
well pump provides enough flow rate for the filter to adequately backwash. In order to ensure sufficient
backwash flow rate the following pumping rate test should be performed prior to installing the iron filter.
1. Make certain no water is being drawn in the house.
2. Open spigot nearest pressure tank.
3. When well pump starts, close spigot and measure time (in seconds) to refill pressure tank (well pump
turns back off). This is Cycle Time.
4. Using a container of known volume, draw water from pressure tank and measure how many gallons
until the pump turns back on again. This is Draw Down.
5. Calculate pumping rate by dividing draw down by cycle time and multiplying by 60.
Example: Draw down is 8 gallons
Cycle time is 65 seconds
gpm (gallons per minute)
Location Considerations
The proper location to instal l the OXY3 filter will ensure optimum filter per formance and satisfactory
water quality. The following factors should be considered in selecting the location of the iron filter.
1. The filter should be installed after the pressure tank (private well system only).
2. The filter should be installed as close as possible (preferably within 15’) to an adequate floor or
laundry drain capable of handling the backwash cycle volume and flow rate (refer to unit
specifications).
3. All water conditioning equipment should be installed prior to the water heater. Water temperatures
exceeding 100°F can damage the internal components of the control valve and filter tank.
4. The filter should not be subject to freezing temperatures.
5. The filter should be installed before a water softener (if required).
6. Never install a cartridge type filter pr ior to the OXY3 iron filter. Any cartridge or in-line filter (if
desired) should be installe d after the OXY3 filter. T his will prevent restricting the water flow and
pressure available for backwash.
7. Appliances requiring extend ed periods of continu ous or high flow water use (i.e. ge othermal heat
pumps, swimm ing pools, lawn irrigation, outside hose bibs, etc.) should bypass the filter and a
spring check valve s hould be installed on the filter inlet to prevent backflow from the filter (see
installation diagram Fig. 1).
8. An expansion tank m ay need to be installed in the line to the water heater in order to allow for
thermal expansion and comply with local plumbing codes.
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Water
Heater
Water Softener
OXY3 Filter
Untreated Water
Untreated Water for
geothermal heat pumps,
swimming pools lawn
irrigation, e t c.
Cold softened water
Hot softened water
Filtered Hard Water
FIGURE 1: Typical Installation
Installation Instructions
Aeration Tank
Filter Tank
Fillport Cap
FIGURE 2: Tank Positioning and Fillport Location
Spring Che ck
Valve
STEP 1: If media is already loaded in f ilter tank proceed to Step 4. Other wise, use the fillport wrench
provided to remove the fillport cap (Refer to Figure 2) by turning it counter-clockwise.
STEP 2: DO NOT REMOVE T HE WHITE FILLPORT SCREEN! Use the fill f unnel provided and add
the required amount of media (see unit specifications) to the filter tank. Do not overfill the tank.
At least 14” of freeboard (em pty space) is required at the top of the m edia tank to allow for
proper bed expansion during backwash. Any excess media may be saved for future
replenishment.
STEP 3: Clean any media out of the fillport cap threads. Do not reinstall the fillport cap until Step 9.
STEP 4: Place filter tank on right side with inlet/outlet facing left. Place aeration tank on left with
inlet/outlet facing right.
STEP 5: Attach the control valve assem bly to the front inlet opening of the aeration tank and outlet
opening of the filter tank . Attach the straight pipe adapter to the back outlet of the aeration
tank and inlet of the filter tank. HAND TIGHTEN UNION NUTS ONLY. DO NOT
OVERTIGHTEN .
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Inlet from water supp ly
Outlet to service
STEP 6: Shut off water at main supply. Relieve pressure b y opening nearest faucet. On private well
systems, turn off power to pum p and drain pressure tank. SHUT OFF POWER OR FUEL
SUPPLY TO WATER HEATER.
STEP 7: Cut m ain supply line as required to fit plumbing t o inlet and o utlet of bypas s valve . DO NOT
PLUMB INLET AND OUTLET BACKWARDS. Piping should support control valve in an
upright position. Do not apply heat to any fitting attached to the bypass or control valve.
STEP 8: Use rigid drai n line or polyet hylene tubing ( NO VINYL TUBING) to run drain line from control
valve discharge fitting to f loor drain or sum p pit capable of handling the bac kwash rate of the
filter (refer to specifications and flow rate on page 8). DISCHARGE END OF THE DRAIN
LINE MUST BE FIRMLY SECURED! Failure to properly secure the drain line will result in the
drain line “whipping” and possibly flooding the area causing water damage. There must be an
air gap at the end of the drain line to prevent siphonin g of waste water and meet plumbing
code. Total length of drain line should be 15’ or less. AVOID OVERHEAD DRAINS.
STEP 9: Use a garden hos e or bucket to fill the media tank with water through the fillport. Ensure
media has been cleaned from fillport threads and install cap securely with wrench provided.
STEP 10: Be sure the control valve is in the “Service” pos ition (refer to tim er operation for inst ructions).
The bypass valve should be in the “Bypass” position. Open main supply valve o r turn on
power to pump on private well systems.
STEP 11: Open bypass valve ¼ of the way allowing unit to pressuri ze slowly. It is norm al for air to b e
trapped in the top part of th e aeration tank. Once tanks are pres surized, fully open bypass
valve to the “Service” position.
STEP 12: Set the backwash frequency for every third day (refer to timer operation for instruction).
Ensure that the skipper wheel is set so that the filter will not backwash for two more days. This
will allow the filter media time to saturate with water. Depending on the media used, subjecting
the filter to backwash flow rates within 24 hours of installation may flush media to the drain.
STEP 13: Set the current time of day on the timer (note AM and PM).
STEP 14: Check for leaks and correct as necessary.
STEP 15: Turn power or fuel supply back on to water heater.
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Timer Operation
FIGURE 3: Front of Timer Assembly
How to set Time of Day:
1. Press and hold the red button to disengage the drive gear.
2. Turn the large 24 hour gear until the actual time of day is at the time of day pointer.
3. Release the red button to again engage the drive gear.
How to set the Days of Backwash:
1. Rotate the skipper wheel until the number 1 is at the red pointer.
2. Each number represents a day. The number by the red pointer is tonight.
3. Slide the metal tabs outward on the desired days of regeneration.
The OXY3 Filter should be set to backwash a minimum of every third day. Ensure the filter does not
backwash for the first two days of operation to prevent media from being backwashed to the drain.
How to Manually Initiate a B ackwash Cy cle:
1. Grab the manual regeneration knob and turn clockwise.
2. The drive gear will engage the program wheel and make a complete revolution through the
backwash cycle.
3. The backwash knob will make a complete revolution and return to the home position after the
backwash cycle.
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FIGURE 4: Back of Timer Assembly
How to Change the Le ngth of Back wash Cy cles:
All cycles have been factory set and should not need adjustment. If local conditions require different
cycle lengths, however, the following procedures should be followed. The end of the program wheel has been
used for backwash cycles to minimize the amount of time that pressure will be applied to the air draw check
valve.
1. Grasp top left corner of timer assembly and pull to swing timer open and expose the program
wheel.
2. Remove program wheel from timer by squeezing retaining lugs in center of program wheel.
Maneuver program wheel away from micro switch arms and timer assembly.
3. BACKWASH cycle may be lengthened by adding pins to first set of pins on program wheel. Each
pin will equal 2 minutes of backwash time. Ensure that adding pins does not decrease air draw
time.
4. AIR DRAW cycle may be lengthened by increasing the number of holes between the two sets of
pins. Each hole represents 2 minutes of air draw time. The air draw time should only be increased
by moving the backwash pins to an earlier point on the program wheel. Ensure that lengthening
the air draw time does not decrease either the backwash or rapid rinse times.
5. RAPID RINSE cycle may be lengthened by increasing the number of pins at the end of the
program wheel. Each pin represents 2 minutes of rapid rinse time. The rapid rinse time can only
be increased by shifting both the backwash pins and air draw holes an equal number of positions
earlier on the program wheel.
6. Reinstall the program wheel on the retaining lugs by maneuvering past the micro switch arms.
7. Close and latch the timer assembly. Ensure that the retainer snaps into the hole in the backplate
and all electrical wiring is ABOVE the timer post.
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Control Valve Wiring
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GENERAL REQUIREMENTS:
Water Temperature
33°F - 100°F
Water Pressure
25 - 100 psi
Electrical Requirements
110v/60hz
UNIT MODEL NUMBER
OXY3-10
OXY3-15
OXY3-20
OXY3-30
OXY3-40
MEDIA VOLUME (ft3)
1.0
1.5
2.0
3.0
4.0
GRAVEL (lbs)
20
20
25
35
50
SERVICE FLOW RATES (gpm)
Continuous (6 gpm/ft2)
3 4 5 6 8
Peak (20 gpm/ft2)
10
12
12
15
18
PRESSURE LOSS (psi)1
@ Continuous Flow Rate
5 7 7 8 9
@ Peak Flow Rate
10
15
13
20
20
REGENERATION FLOW RATES (gpm)
Backwash
5.0
5.0
7.0
9.0
10.0
Air Draw and Slow Rinse
0.9
0.9
0.9
0.9
0.9
Rapid Rinse
5.0
5.0
7.0
9.0
10.0
FACTORY REGENERATION SETTINGS
Backwash (minutes)
8 8 8 8 8
Air Draw & Rinse (minutes)
14
14
14
14
14
Rapid Rinse (minutes)
8 8 8 8 8
Total Water Used (gallons)
93
93
125
157
173
DIMENSIONS (in.)
Mineral Tank (diameter x height)
10 x 54
10 x 54
12 x 48
14 x 65
16 x 65
Overall (length x width x height)
24x 12 x 68
24 x 12 x 68
26 x 12 x 62
35 x 16 x 79
37 x 18 x 79
1. Pressure loss information is approximate and may vary based on frequency and efficiency of backwash, water
quality, and water use since last backwash cycle.
Specifications
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Component Parts Breakdown
A B C
D
2
8
9
1
3
4
5
6
9
7
5
9
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Ref #
Part Number
Description
A
CV3105
O-Ring, -215
B
CV3151
Nut, 1” Quick Connect
OX-7
Back Tube Adaptor (OXY3-10, OXY3-15 & OXY3-20)
OX-15
Back Tube Adaptor (OXY3-30 & OXY3-40)
D
CV3150
Split Ring Retainer
OXY3-10/15 Valve Assembly
Complete Control Valve includes backtube assy
(ref #9
-
15)
OXY3
Complete Control Valve (includes backtube assy)
for OXY3 -20
OXY3-30/40 Valve Assembly
Complete Control Valve (includes backtube assy)
for OXY3-30 and OXY3-40
2
CD1400
Distributor Head
3
CD1220-01
Distributor Head w/Fillport
D100S-54
Distributor Tube, 1” x 54” (OXY3-10 & OXY3-15)
D100S-48
Distributor Tube, 1” x 48” (OXY3-20)
D100S-65
Distributor Tube, 1” x 65” (OXY3-30 & OXY3-40)
MTP1054N
Mineral Tank, 10” x 54” (OXY3-10 & OXY3-15)
MTP1248N
Mineral Tank, 12” x 48” (OXY3-20)
MTP1465N
Mineral Tank, 14” x 65” (OXY3-30)
MTP1665N
Mineral Tank, 16” x 65” (OXY3-40)
OXY10P
OXY Media Blend
IP10
Iron Pro Media Blend
IP10M
Iron Pro Media “M” Blend
QC20
20 pounds ¼” x 1/8” gravel (OXY3-10 & OXY3-15)
QC25
25 pounds ¼” x 1/8” gravel ( OXY3-20)
QC35
35 pounds ¼” x 1/8” gravel ( OXY3-30)
QC50
50 pounds ¼” x 1/8” gravel ( OXY3-40)
8
JG-38CV
3/8” Check Valve
OX
Back Tube Assembly , include s 2 ea ch o-ri ngs (A ),
quick release nuts (B), and retainers (D) and 1
back tube (C) (OXY3-10, OXY3-15 and OXY3-20)
OX
Back Tube Assembly , include s 2 ea ch o-ri ngs (A ),
quick release nuts (B), and retainers (D) and 1
back tube (C) (OXY3-30 and OXY3-40)
Component Parts List
C
) and bypass valve (OXY3-10 and OXY3
1
-20 Valve Assembly
4
5
6*
7
-7 Assembly
9
-15 Assembly
*
Refer to unit specifications for quantity of media required.
OXY10P media is recommeded when incoming water pH is 7.0 or greater and no manganese is
present.
IP10 media is recommended when incoming water pH is less than 7.0 and no manganese is present.
IP10M media is recommended when manganese is present in water supply.
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Control Valve Breakdown
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REF #
Part
Number
REF #
Part
Number
A
60041SS
Stainless Steel Bypass, 1” FPT
11
14805
Injector Body Gasket
90 Degree Elbow (1/4 Pipe x 3/8
Tube)
C
JG-38CV
Check Valve, 3/8” Tube
12092
5.0 DLFC (OXY3-10 &OXY3-15)
Brine Valve, 1650 Short Stem, 0.5
BLFC Less Tube
7.0 DLFC (OXY3
5.0 gpm DLFC Housing (OXY3-10
& OXY3-15)
Not used
and larger units
20)
Drain Fitting, Hose Barb, 90
Degree Elbow, 1/2" x 1/2"
Blank DLFC Housing (larger than
3 ft
)
Base Seal (2510)
F
60121
Seal and Spacer Kit
16
19322
2510 Adapter Base
G
60090
Piston Assembly
17
19197
Slip Ring
Tank O
J
60160-10
Drive Cam Assembly, STF
20
13030
Distributor Retainer
Timer Assembly, 3200, 12 Day,
STF, 120/60
1
14105
Bypass Valve Seal, Single Lever
22
13911
Main Drive Gear
Timer Motor, 120v/60Hz,
2510/5600 Valve
Micro Switch, Homing
4
10692
Injector cover screw 2510 valve
25
10896
Micro Switch, Step
5
11893
Injector Cover
26
10218
Micro Switch, Drive Motor
6
10229
Injector Cover Gasket
27
10909
Connecting Link Pin
7
10913-2
Injector Nozzle, #2, Blue
28
10338
Roll Pin
Brine Cam, STF
Injector Screen
Valve Cover Designer Black
10
17776
Injector Body Plastic
Control Valve Parts List
Description
B 60900-41 Coupling Kit
D 60011-020
60705-50
E
H FV2510-1PH
I 60050-21 Drive Motor Assembly
K 60304-13
2 13305 Coupling O-Ring, -019
60705-70 7.0 gpm DLFC Housing (OXY3-
60705-00
3
Powerhead Assembly, 2510 TC
Description
12 10328
13
14 12338
15 19936
18 18303
19 13304 Distributor O-Ring, -121
21 40027 J tube for 2510 valve
23 18743-1
12408
-Ring, 2510 Valve
-20)
on 3 ft3
3 19228-01 Coupling, Adapter S/ASSY
8 10914-2 Injector Throat, #2, Blue
9 10227
24 15320
29 12777
30 60232-110
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13
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14 15
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TEN YEAR LIMITED WARRANTY
WARRANTY – First Sales, LLC. warrants this water conditioner against any defects that
are due to faulty material or workmanship during the warranty period. This warranty does
not include damage to the product resulting from accident, neglect, misuse,
misapplication, alteration, installation or operation contrary to printed instructions, or
damage caused by freezing, fire, flood, or Acts of God. From the original date of
consumer purchase, we will repair or replace, at our discretion, any part found to be
defective within the warran ty period described below. Purchaser is responsible for any
shipping cost to our facility and any local labor charges.
x One year on the entire wate r conditioner
x Five years on the control valve
x Ten years on the mineral tank
GENERAL CONDITIONS – Should a defect or malfunction occur, contact the dealer that
you purchased the product from. If you are unable to contact the dealer, contact First
Sales, LLC. @ (260)693-1972. We will require a full description of the problem, model
number, date of purchase, and selling dealer’s business name and address.
We assume no warranty liability in connection with this water conditioner other than
specified herein. This warranty is in lieu of all other warranties, expressed or implied,
including warranties of fitness for a particular purpose. We do not authorize any person
or representative to assume for us any other obligations on the sale of this water
conditioner.
FILL IN AND KEEP FOR YOUR RECORDS
______________________________________________________________________
Original Purchaser Date of Purchase Model #
Address of Original Installation City State
Dealer Purchased From Dealer Address City State
Sterling Water Treatment Systems
First Sales, LLC.
12630 U.S. 33 North, Churubusco, IN 46723
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