3M 3MAPPM150 User manual

Installation and Operating Instructions For
3M™ Iron Reduction Filtration Systems
MODELS:
3MAPPM150
3MAPPM200
Homeowner: Please retain for operation and future maintenance instructions.

SAFETY INFORMATION
Read, understand, and follow all safety information contained in these instructions prior to installation and use of the 3M™ Series Iron Reduction Filtration System 3MAPPM
Series. Retain these instructions for future reference. Failure to follow installation, operation and maintenance instructions may result in property damage and will void war-
ranty.
This product includes a GAST®component. Please refer to GAST website at www.gastmfg.com for detailed information on GAST LOA-P109-AA compressor or
contact your Dealer/Installer or our Customer Care Team at 855-3M-WATER (855-369-2837).
Intended use:
The 3M™ Series Iron Reduction Filtration System 3MAPPM Series is intended for use in reducing iron in water in homes and has not been evaluated for other uses.
The system must be installed indoors near the point of entry of a home water line, and be installed by qualified professional installers according to these installation
instructions.
EXPLANATION OF SIGNAL WORD CONSEQUENCES
WARNING Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury and/or property damage.
CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury and/or property damage.
CAUTION Indicates a potentially hazardous situation, which, if not avoided, may result in property damage.
WARNING
To reduce the risk associated with choking:
• Do not allow children under 3 years of age to have access to small parts during the installation of this product.
To reduce the risk associated with ingestion of contaminants:
• Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
To reduce the risk of physical injury:
• Shutoffinletwatersupplyanddepressurizesystemasshowninmanualpriortoservice.
• Donotoperatesystemwithairreleasevalve(ARVTA-1X)intheclosedposition.
To reduce the risk associated with a hazardous voltage:
• Ifthehomeelectricalsystemrequiresuseofthecoldwatersystemasanelectricalsafetyground,ajumpermustbeusedtoensureasufcientgroundconnectionacrossthe
filter installation piping — refer installation to qualified personnel.
• Donotusethesystemifthepowercordisdamaged—contactqualiedservicepersonnelforrepair.
To reduce the risk associated with back strain due to the heavy weight of the various system components:
• Followsafeliftingprocedures.
CAUTION
To reduce the risk associated skin, eye, and respiratory tract irritation from gravel and filter media during installation:
• Gravelandseveraltypesofltermediamaybeusedinthisproduct,dependingupontheapplication.Duringinstallation,dustmaycauseirritationtoskin,eyes,andrespiratorytract.
• UtilizeaNIOSH-approveddustltermask,protectivegloves,andappropriateeyeprotectionwhenhandlingandpouringgravelandltermedia.
• TorequestanMSDSrelatingtothisproduct,call203-238-8965orgotowww.3M.com,selectcountry,andusethesearchenginetosearchMSDS.Foremergencies,call
800-364-3577 or 651-737-6501 (24 hours).
CAUTION
To reduce the risk associated with property damage due to water leakage:
• Read and follow Useinstructionsbeforeinstallationanduseofthiswatertreatmentsystem.
• InstallationanduseMUST comply with existing state or local plumbing codes.
• Protect from freezing, relieve pressure and drain system when temperatures are expected to drop below 33°F (0.6°C).
• Do not install on hot water supply lines. The maximum operating water temperature of this filter system is 110°F (43.3°C).
• Do not install if water pressure exceeds 50 psi. If your water pressure exceeds 50 psi (345 kPa), you must install a pressure limiting valve. Contact a plumbing professional
if you are uncertain how to check your water pressure.
• Do not install where water hammer conditions may occur. If water hammer conditions exist you must install a water hammer arrester. Contact a plumbing professional if
you are uncertain how to check for this condition.
• Whereabackowpreventiondeviceisinstalledonawatersystem,adeviceforcontrollingpressureduetothermalexpansionmustbeinstalled.
• Do not use a torch or other high temperature sources near filter system, cartridges, plastic fittings or plastic plumbing.
• Onplasticttings,neverusepipesealantorpipedope.Use PTFE thread tape only, pipe dope properties may deteriorate plastic.
• Takecarewhenusingpliersorpipewrenchestotightenplasticttings,asdamagemayoccurifovertighteningoccurs.
• Do not install in direct sunlight or outdoors.
• Installsysteminsuchapositionastopreventitfrombeingstruckbyotheritemsusedintheareaofinstallation.
• Ensurealltubingandttingsaresecureandfreeofleaks.
• SHUT OFF FUEL OR ELECTRIC POWER SUPPLY TO WATER HEATER after water is shut off.
• Do not install system where water lines could be subjected to vacuum conditions without appropriate measures for vacuum prevention.
• Do not apply heat to any fitting connected to bypass or control valve as damage may result to internal parts or connecting adapters.
To reduce the risk associated with property damage due to plugged water lines:
• Payparticularattentiontocorrectorientationofcontrolvalve.Waterowshouldmatcharrowoncontrolvalve.TheInletandOutletofotherwatertreatmentequipment
products will vary depending on the control valve brand used.
IMPORTANT NOTES
• Failure to follow instructions will void warranty.

SECTION 1: GENERAL INFORMATION
This 3MAPPM Series Iron Reduction Filtration System reduces dissolved, precipitated and bacterial iron from your water supply. Contrary to conventional
methods, the 3MAPPM Series Iron Reduction Filtration System requires NO chemicals (either added to the water supply or the filter). The unique process
requires ONLY periodic backwashing for a few minutes to flush out entrapped iron that has accumulated in the media tank.
The 3MAPPM Series Iron Reduction Filtration System was designed to be used primarily on jet pump applications where the operating pressures do not exceed
50 psi. The MAXIMUM PRESSURE for proper operation of the aeration tank is 50 psi. If you have a private water system, refer to page 2-1 to determine your
system’s capability. If your system produces the required flow rate at 50 psi or higher, contact your Dealer/Installer or our Customer Care Team at 855-3M-
WATER (855-369-2837).
When properly installed, the 3MAPPM Series Iron Reduction Filtration System will provide years of dependable service. Read this manual all the way through
first, and then follow the instruction steps in the proper sequence.
DESCRIPTION AND OPERATION OF THE SYSTEM:
The 3MAPPM Series Iron Reduction Filtration System consists of two major components which are:
1) An aeration tank, with GAST LOA-P109-AA compressor, installed after the existing pressure tank. Every time the well pump runs, the compressor injects
air into the iron laden water.
2) A backwashing type filter containing a special media that causes the iron to precipitate throughout the filter bed (rather than on the surface as in chemi-
cal oxidizing filters). This process produces an iron reduction capacity from 30,000 to 50,000 parts per million (ppm) compared to 6,000 to 8,000 ppm
for chemical oxidation processes. The media DOES NOT require a chemical regenerant (such as potassium permanganate) for oxygen enrichment, salt,
chlorine or any other chemicals.
The 3MAPPM Series Iron Reduction Filtration System automatically adjusts the pH to neutral or higher on acid water WITHOUT an acid neutralizer (a required
piece of equipment with chemical oxidation filters whenever the pH is less than 6.7). The ability to raise pH when it is below neutral (7 or less) greatly en-
hances the filtration system’s ability to reduce iron efficiently.
IMPORTANT NOTE
Replenishment of the component of the filter media that adjusts pH, “pH Plus”, may be required periodically, the frequency of which is dependent on the
raw water pH, the manganese (Mn) concentration in the water (if any) and the water consumption rate.
Periodic backwashing of the filter bed flushes the precipitated iron to the drain and readies the filter for use again. The duration of the backwash procedure is
approximately ten (10) minutes. The frequency of backwashing depends on iron concentration and water usage, and ranges from daily to once every twelve
(12) days.
IMPORTANT NOTE
Due to the aeration process, the water will probably appear milky when drawn from the tap. Allow the water to stand and the air will dissipate.
• Professional Installation Required: Installation requires shutting water off to home, cutting home water supply pipe and using a welding torch
to add piping and fittings. Specialized tools and skills are required. Not a do-it-yourself type of project.
1-1
TABLE OF CONTENTS
SECTION DESCRIPTION
1GENERAL INFORMATION
2BEFORE INSTALLATION
3 INSTALLATION
4BACKWASHING INSTRUCTIONS
5TROUBLESHOOTING
6SPECIFICATIONS AND OPERATING DATA
7MAINTENANCE
8LIMITED WARRANTY

INSPECTING AND HANDLING YOUR FILTRATION SYSTEM:
Inspect the equipment for shipping damage. If damaged, notify the transportation company and request a damage inspection.
Handle the filter unit with care. Damage can result if dropped or if set on sharp, uneven projections on the floor. Do not turn the filter unit upside down.
MAKE SURE YOUR WATER HAS BEEN THOROUGHLY TESTED:
An analysis of your water should be made prior to the selection of your water conditioning equipment and filter media. Enter your water analysis results below
for a permanent record.
IMPORTANT NOTE
Hydrogen sulfide (H2S) must be tested for at the well site. For accuracy, the sample must be drawn with the pump RUNNING, and the test be completed
within ONE minute after the sample is drawn.
Analysis Of Your Water
Hardness gpg Tannins (Humic Acid) ppm
Iron (Fe) ppm Hydrogen Sulfide (H2S) ppm
Manganese (Mn) ppm Other ppm
pH ppm Other ppm
IRON (Fe)
Iron concentrations as low as 0.3 ppm (0.1 ppm under some conditions) will cause staining. The iron concentration, together with the flow rate demand and
the consumption rate of the water determines the basic size filter system. The higher these factors are, the larger the required system. The 3MAPPM Series
Iron Reduction Filtration System is capable of reducing the three main types of iron found in water supplies; Dissolved iron (also known as “clear water” or
ferrous iron), precipitated iron (also known as “red water” or ferric iron) and bacterial iron (also known as iron bacteria). Special care must be taken when
selecting a filter model if your water has a combination of high iron, very low pH and/or manganese levels above 0.2 ppm. The MAXIMUM CONCENTRATION
of iron which can be treated with this system is 10 ppm or less. If your water contains higher concentrations, contact your Dealer/Installer or our Customer
Care Team at 855-3M-WATER (855-369-2837).
The 3MAPPM Series Iron Reduction Filtration System is not bactericidal, i.e. it does not remove or kill “bacterial iron”. It reduces the iron and slime deposits
in your plumbing line and fixtures upon which the bacteria may live, thus minimizing its effects.
pH
The pH of water is a measurement of Hydrogen Ion concentration in water. Water with a pH of less than 7.0 is acidic, above 7.0 it is base, and a pH of 7.0 is
neutral. The lower the pH value the greater the acidity, and the higher the pH value the more base. Acidic water (pH less than 7.0) is corrosive to pipes, ap-
pliances, etc. A pH of 7.0 or higher facilitates iron reduction – which is why the 3MAPPM Series Iron Reduction Filtration System is designed to increase the
pH when it is less than 7.0.
The pH increasing component of the media is “sacrificial,” that is, it slowly dissolves during the process of increasing pH. The rate this occurs is proportional
to the degree of the pH increase and the water consumption rate (i.e., the greater the pH increase and water consumption, the greater the sacrificial rate).
Thus, when the pH is increased to 8.2 or more, as is necessary when manganese is present, the sacrificial rate is even greater. Under the most severe condi-
tions, the MpH component of the media may have to be replenished two to four times per year. On the other hand, if the raw water pH is 7.0 or above and no
manganese is present, the sacrificial rate is very slight.
HYDROGEN SULFIDE (H2S)
Hydrogen sulfide (often referred to as “sulfur”), is easily detectable by its objectionable “rotten egg” odor. Sulfur corrodes iron, brass, copper and silver. While
the 3MAPPM Iron Reduction Filtration System is not intended to be used as a sulfur filter, it is capable of reducing sulfur in concentrations of up to 2 or 3 ppm.
Whenever hydrogen sulfide is present, backwashing must be performed at more frequent intervals.
CHECK YOUR WATER PRESSURE AND PUMPING RATE:
To avoid unsatisfactory operation or equipment damage, the following system condition must be carefully checked.
WATER PRESSURE
Low _____ psi High _____ psi
The pumping rate of your well pump must be sufficient to BACKWASH the filter. To measure the pumping rate of your pump, follow these instructions:
1. Make certain no water is being drawn. Open spigot nearest pressure tank. When pump starts, close spigot and measure time (in seconds) to refill pres-
sure tank (when pump shuts off). This figure represents CYCLE TIME.
2-1
SECTION 2: BEFORE INSTALLATION

2. With the pressure tank full, draw water into a container of known volume, measure the number of gallons drawn until the pump starts again. This is
DRAW-DOWN. Divide this figure by CYCLE TIME and multiply the result by 60 to arrive at the PUMPING RATE in gallons per minute (gpm). To aid in your
calculation, insert the data in the following formula:
DRAW-DOWN _____ ÷ CYCLE TIME _____ x 60 = PUMPING RATE _____
(gals.) (secs.) (gpm)
EXAMPLE: CYCLE TIME is 63 secs.; DRAW-DOWN is 8 gals.; then PUMPING RATE equals: 8 gals. ÷ 63 secs. x 60 = 7.6 gpm
IMPORTANT NOTE
The addition of other water treatment devices (such as an acid neutralizer) may reduce the flow rate at the filter drain to an inadequate level to properly
backwash the filter. If you are uncertain whether your flow rate is adequate, contact your Dealer/Installer or our Customer Care Team at 855-3M-WATER
(855-369-2837) BEFORE installing the 3MAPPM Series Iron Reduction Filtration System, so that corrective action, if required, may be taken.
LOCATE WATER CONDITIONING EQUIPMENT CORRECTLY:
Select the location of your media tank with care. Various conditions which contribute to proper location are as follows:
1) Locate as close as possible to water supply source.
2) Locate as close as possible to a floor or laundry tub drain.
3) Locate in correct relationship to other water conditioning equipment (See Figure 1, in Section 3).
4) Filtration systems and softeners (if applicable) should be located in the supply line BEFORE the water heater. Temperatures above 110°F (43.3°C) damage
filters and softeners and will void the factory warranty.
5) Do NOT install a filtration system or softener (if applicable) in a location where freezing temperatures occur. Freezing may cause permanent damage to
this type of equipment and will also void the factory warranty.
6) Allow sufficient space around the unit for easy servicing.
7) If your water source is a community water supply, a public water supply, OR you wish to bypass water used for a geothermal heat pump, lawn sprinkling, out
buildings or other high demand applications, the purchase of an FS1 Flow Switch is suggested. Instructions accompanying the flow switch will describe the
proper installation for these types of applications.
THE IMPORTANCE OF YOUR PRESSURE TANK:
The 3MAPPM Series Iron Reduction Filtration System will perform satisfactorily with either a captive-air (“bladder”) type pressure tank or a standard air-to-
water type with an air volume control (air-relief valve).
A PROPERLY SIZED PRESSURE TANK OF EITHER STYLE WILL REQUIRE A MINIMUM PUMP CYCLE OF 60 SECONDS TO REFILL FROM THE WELL PUMP ON-TO-OFF
PRESSURE SETTINGS.
IMPORTANT NOTE
If your pressure tank (or any part of your water system) is not functioning properly, corrective action MUST be taken BEFORE installation of the 3MAPPM
Series Iron Reduction Filtration System.
FACTS TO REMEMBER WHILE PLANNING THE INSTALLATION:
WARNING
To reduce the risk associated with a hazardous voltage:
• Ifthehomeelectricalsystemrequiresuseofthecoldwatersystemasanelectricalsafetyground,ajumpermustbeusedtoensureasufcientgroundconnec-
tion across the filter installation piping — refer installation to qualified personnel.
• Donotusethesystemifthepowercordisdamaged—contactqualiedservicepersonnelforrepair.
If lawn sprinkling, geothermal heating/cooling or water for other devices/activities are to be treated by the filter, a larger model filter MUST be selected to
accommodate the higher demands of these items. The pumping rate of the well pump must be sufficient to accommodate these items plus the backwashing
requirement of the softener. Consult yyour Dealer/Installer or our Customer Care Team at 855-3M-WATER (855-369-2837) for alternative instructions if the
pumping rate is insufficient.
Remember that the filter INLET is attached to the pipe that supplies water (i.e. runs to the pump) and OUTLET is the line that runs toward the water heater
or other water treatment equipment device.
Before commencing the installation, it is advisable to study the existing piping system and to determine the size, number and type of fittings required. Typical
system schematics shown in Figure 1 will be of assistance (page 3-1).
2-2

3-1
SECTION 3: INSTALLATION
Proper installation sequence of water conditioning equipment is very important.
Refer to the diagram following for your particular water supply.
BRINE
TANK
SOFTENER
(OPTIONAL)
SOFTENER
(OPTIONAL)
IRON
REDUCTION
FILTRATION
SYSTEM
FILTERED WATER
FILTERED
SOFT WATER
TANK
AERATION
SWITCH
PRESSURE
RAW
WATER
RAW
WATER
FS1 FLOW SWITCH
UNTREATED
WATER
UNTREATED
WATER
UNTREATED
WATER
WATER
RAW
METER
TANK
PUMP
PRESSURE
SWITCH
PRESSURE
TANK
PRESSURE
IRON
REDUCTION
FILTRATION
SYSTEM
PRESSURE
REGULATOR
(NOT SUPPLIED)
PRESSURE
REGULATOR
(NOT SUPPLIED)
FS1 FLOW SWITCH
CHECK VALVE
CHECK VALVE
CHECK VALVE
BRINE
TANK
FILTERED WATER
FILTERED
SOFT WATER
TANK
AERATION
BRINE
TANK
FILTERED WATER
FILTERED
SOFT WATER
TANK
AERATION
FS1 FLOW SWITCH
PRESSURE
REGULATOR
(NOT SUPPLIED)
TYPICAL INSTALLATION
SPLIT STREAM INSTALLATION
PUBLIC WATER SUPPLY INSTALLATION
CAUTION
To reduce the risk associated with property damage due to plugged water lines:
• Payparticularattentiontocorrectorientationofcontrolvalve.Waterowshouldmatcharrowoncontrolvalve.TheInletandOutletofotherwater
treatment equipment products will vary depending on the control valve brand used.
FIGURE 1

3-2
MOUNTING & SET-UP INSTRUCTIONS FOR GAST LOA-P109-AA COMPRESSOR UNIT
Prior to using the system, some assembly and adjustments are required. Please locate these parts and ensure all items are present. These items are required to
mount and set-up the GAST LOA-P109-AA Compressor assembly as well as to connect the tubing to the GAST LOA-P109-AA Compressor and aeration tank.
• GASTLOA-P109-AACompressor/BracketAssembly
• RETROFITKIT
• 1/4”PolyethyleneTubing(10feet)
• A4FE4-MG(1/4”NPTx1/4”QuickConnectElbow)
IMPORTANT NOTE
This product includes a GAST® component. Refer to the GAST’s website @ www.gastmfg.com for their instruction and operation manual for detailed
instructions and safety information related to Model # LOA-P109-AA Oil-less Compressor.
How It Works:
When the GAST LOA-P109-AA Compressor is running, it injects air into the water which causes iron to precipitate. The precipitated iron is then filtered as it
passes through the 3MAPPM Iron Reduction Filtration System. There are two ways to turn the GAST LOA-P109-AA Compressor on.
1. For Private Water Well Systems — The GAST LOA-P109-AA Compressor can be wired to either a pressure switch in the water well system or a flow switch
installed in the service side of the iron reduction filtration system. The GAST LOA-P109-AA Compressor is activated on a standard well pump system by
a pressure switch that senses pressure in the water line. When the preset low pressure side of the switch is met, the GAST LOA-P109-AA Compressor is
turned on and will continue to run until the high pressure setting is reached, at which time the GAST LOA-P109-AA Compressor is turned off. On a flow
switch application the GAST LOA-P109-AA Compressor is wired into the flow switch and is energized when water flows through the flow switch and turns
on the GAST LOA-P109-AA Compressor. The GAST LOA-P109-AA Compressor will continue to run until water flow in no longer detected.
2. For Split Stream or Public Water Supply – An FS1 Flow Switch (sold separately) is installed in the service line and turns on the GAST LOA-P109-AA
Compressor when water flow exceeds 0.5 gpm. See Page 3-1 for installation diagram.
GAST LOA-P109-AA Compressor Mounting Instructions:
1. Locate the GAST LOA-P109-AA Compressor/Bracket Assembly within six (6) feet of the aeration tank.
2. Thread A4FE4-MG onto the brass check valve located on the compressor. The
quick connect end of the elbow should already be plugged with a Plug00007.
Keep the plug installed to set the air release fitting. Fitting should point to the
floor as shown in Figure 2.
3. The mounting bracket should be mounted on a surface that will support vi-
bration, preferably to studs or a concrete wall. The installer must choose and
supply the appropriate fastener for mounting the bracket to the wall.
4. When using the FS1 Flow Switch, the power supply must be connected to a
dedicated 110 VAC, minimum 15 amps, 60 Hz. Power supply. Follow NEC and/
or all relevant codes for your area.
5. If the system is being serviced, insert the Plug00007 plug found in the RET-
ROFIT KIT into the quick connect fitting on top of the air release tank head
to set the air release fitting. This is the only component of the RETROFIT KIT
you will use.
Wiring Instructions:
WARNING
To reduce the risk associated with hazardous voltage:
• Disconnectlinecircuitpowerbeforewiringtheswitchandcompressor.Consultalicensedelectricianforcorrectandsafeconnectionoftheow
switch and GAST LOA-P109-AA Compressor to the home electrical system.
1. For Well Systems – The GAST LOA-P109-AA Compressor can be wired to run in parallel to the well pump pressure switch. The air compressor runs on
110 VAC and has a standard 3 wire connection (black, white, and green wires). The leads of the GAST LOA-P109-AA Compressor must be made on the
well pump motor contacts. All contacts must be made in accordance with NEC and local codes and standards. Use a licensed electrician to perform this
task to ensure safety and correctness.
2. For Use With A Flow Switch – An FS1 Flow Switch should be installed in the service line after all water treatment equipment (e.g. 3MAPPM Iron Reduc-
tion Filtration System, 3MWTS Water Softener, etc.). The FS1 plumbing connection is 1” PVC socket (solvent weld) and must be installed horizontally and
the top in an upright position or it will not function correctly. Make sure the direction of water flow matches the arrows on the FS1 Flow Switch.
The FS1 comes with a power cord installed, but the GAST LOA-P109-AA Compressor power cord must be connected to the flow switch in order to operate.
The GAST LOA-P109-AA Compressor must be wired to run when water flow is detected in the treated water line. The electrical leads must be fed through
the strain relief on the flow switch and attached to the wire leads provided on the micro switch under the cover of the flow switch. Follow the instructions
provided by the manufacturer of the flow switch. The flow switched power cord must be plugged into a 110 volt, 60 hertz circuit with a minimum 15 amp
rating on a non-switched electrical outlet. A licensed electrician must perform the wiring needs for this application to ensure the electrical connections
are made in accordance with the NEC and local codes and standards.
MOUNTING HOLES
LOCATE CORRESPONDING
HOLES ON VALVE
AIR RELEASE FITTING
A4FE4-MG
Figure 2
GAST LOA-P109-AA
Compressor

3-3
IMPORTANT NOTE
It is suggested that a licensed electrician perform the wiring needs for this application to ensure the electrical connections are made in accordance
with the NEC and local codes and standards.
FS1 Specifications: Compressor Specifications
a. 10 Amp Max @ 110 VAC a. 120 VAC
b. 0.5 gpm minimum actuation flow b. 1/16 HP
c. 110˚ F maximum temperature c. 0.05 KW
d. 1575 RPM (@ 60Hz)
GAST LOA-P109-AA Compressor Set-Up:
1. Screw assembly ARVTA-1X into the 1/4” threaded hole on top of air release tank in the tank head. Attach the 3/8” polyethylene tubing to the top of the
air release valve. To be able to do so remove the red cap and slip tubing over the threaded boss of the air release valve. The ARTVA-1X assembly can be
found in its own box in the aeration tank shipping box. This tubing needs to be run to a waste drain to accommodate water that may be expelled during
the venting cycles. It is recommended to keep the tubing as short as possible to ensure proper performance in venting air and water correctly. Ensure the
air release valve is open by examining the side of the air release valve (see Figure 3). It should always remain open.
WARNING
To reduce the risk of physical injury:
• Do not operate system with air release valve (ARVTA-1X) in the closed position.
2. The air release fitting requires adjustment before the system is operational. Your water system operating pressure range
needs to be determined to allow for adjustment of the air release valve. This can be performed by observing the pressure
gauge on your pressure tank while the well pump is running. If you are on a municipal, community or constant pressure /
variable speed pump observe the pressure in the water system on the water line.
3. Locate and install the MAXRETRO kit into the quick connect check valve on the air release tank prior to adjusting the air
release valve mounted on the air compressor, see Figure 4. If you’re replacing the compressor on an older style system with
threaded nut fittings, cut the 1/4” polyethylene tubing about 2 inches above the nut. Care needs to be taken to ensure the
tubing is cut square and clean. Remove the 1/4” polyethylene from the MAXRETRO kit and slide the union connector onto the
1/4” polyethylene tubing left in the threaded nut, see Figure 4. NOTE: Relive any pressure from the aeration tank before cutting the tubing.
4. Connect the GAST LOA-P109-AA Compressor to either the pressure switch or flow switch; please note the compressor is rated for 110 VAC, minimum
15 amps, 60 cycles. Be sure the plug is installed in the Compressor Assembly as shown in Figure 4 during this step. Start the GAST LOA-P109-AA
Compressor. by running water down stream of the pressure tank or flow switch. Open the brass air release mechanism on the side of the compressor.
Control the setting by turning the adjustment nut in or out to set the operating pressure of the GAST LOA-P109-AA Compressor. The correct adjustment
would be when the pressure gauge maintains a pressure of 10 to 15 pounds less than the shut off pressure of the water system. Once the adjustment
is correct, lock the setting by tightening the second nut on the air release mechanism to secure the setting.
5. Once the air release mechanism is adjusted, turn off the GAST LOA-P109-AA Compressor, relieve pressure on the air release tank by opening the air
release valve. Remove the plug from the quick release elbow on the air compressor and the MAXRETRO fitting on air release tank. Connect the 1/4”
polyethylene tubing between the two quick connect fittings. Ensure the tubing is seated correctly into the quick connect fittings. The MAXRETRO will
need to stay in place if you are replacing the compressor on an older style system. In this case, just remove the plug from the MAXRETRO kit.
6. Pressurize the water system and check for leaks, correct
as needed.
Please visit GAST’s website @ www.gastmfg.com for their in-
struction manual and additional information
(http://www.gastmfg.com/pdf/OM/saa_soa_RP_OM.pdf)
Figure 3
Figure 4
AIR RELEASE FITTING
PLUG
AERATION TANK
ARVTA-1X
AIR RELEASE VALVE MAXRETRO
QUICK CONNECT
CHECK VALVE QUICK CONNECT
FITTING

SYSTEM AND PLUMBING SET-UP INSTRUCTIONS
CAUTION
To reduce the risk associated with property damage due to water leakage:
• Installation must comply with existing state or local plumbing codes, even if they are contrary to our instructions.
• Do not use a torch or other high temperature sources near filter system, cartridges, plastic fittings or plastic plumbing.
• Onplasticttings,neverusepipesealantorpipedope.UsePTFEthreadtapeonly,pipedopepropertiesmaydeteriorateplastic.
• Takecarewhenusingpliersorpipewrenchestotightenplasticttings,asdamagemayoccurifovertighteningoccurs.
IMPORTANT NOTES
•Damage due to heat is not covered under the manufacturer’s warranty and will void the warranty.
•The use of flexible drain lines are prohibited in some states, check with your local code officer for requirements. Distance and height affects the
performance of the drain line to discharge at the proper rate to effectively backwash the filter media. The following are guidelines for drain line size
installation. Do not bend the drain line too sharply if using flexible tubing. Secure the drain line over the discharge line to prevent splashing or blow
out during regeneration. Do not use garden hose or vinyl tubing as a drain line as this may cause a failure to regenerate properly.
Step 1
Inspect and open factory sealed box to ensure all components required for installation are present. If media was ordered, verify the amount and type of
filter media (ordered separately) is correct. (See Section 6, page 6-2.)
Step 2
Remove filtration system from shipping carton and inspect to ensure there is no damage to product from shipping. Inspect any packing for components
that have been attached for shipping before discarding. If any items intended for installation are missing at this time contact your Dealer/Installer or our
Customer Care Team at 855-3M-WATER (855-369-2837) to notify them of this situation. Provide the model number and serial number when contacting
your Dealer/Installer or our Customer Care Team.
Step 3
Follow the steps to center the distributor tube and load the filter media into the media tank for successful installation of the 3MAPPM Iron Reduction
Filtration System.
a. Remove the control valve from the media tank by rotating the valve head assembly to the left (counter-clockwise) and set aside to reassemble after
media is loaded into tank.
b. Tilt media tank to a 45 degree angle until gravel shifts to the side of the tank and dimple at bottom of media tank is visible. This will allow you to
place the distributor tube basket assembly in the dimple on the bottom of the media tank.
c. Place media tank back in upright position and ensure gravel at the bottom of the media tank is level. Place red plastic cap on the distributor tube
that is provided in the parts bag.
d. Locate the filter media that will be used in the iron reduction filter and load into the media tank. Note: fill only to the labeled line on the outside of
the media tank. Refer to Section 6 Specification and Operating Data, page 6-1, for the correct quantity for your filter system. Use a clean rag to wipe
the opening of the media tank to remove any dust or sediment before moving to the next step.
CAUTION
To reduce the risk associated skin, eye, and respiratory tract irritation from gravel and filter media during installation:
• Gravelandseveraltypesofltermediamaybeusedinthisproduct,dependingupontheapplication.Duringinstallation,dustmaycauseirritationtoskin,
eyes, and respiratory tract.
• UtilizeaNIOSH-approveddustltermask,protectivegloves,andappropriateeyeprotectionwhenhandlingandpouringgravelandltermedia.
• TorequestanMSDSrelatingtothisproduct,call203-238-8965orgotowww.3M.com,selectcountry,andusethesearchenginetosearchMSDS.For
emergencies, call 800-364-3577 or 651-737-6501 (24 hours).
3-4

Step 4
Once the filter media has been loaded, fill the media tank with water using a pail or water hose to saturate the media and expel any air out of the filtration
system. Remove the centering tool from the distributor tube and the fill funnel from the opening of the mineral tank.
Step 5
Use silicone lubricant to lubricate the distributor tube, control valve o-ring and pilot tube o-ring. Insert the distributor tube into the pilot tube adapter and
attach the valve head to the media tank by rotating the valve head assembly to the right (clockwise). Caution should be taken to prevent cross threading
the valve thread with mineral tank.
Step 6
Locate the installation assembly packet and assemble as the enclosed instructions dictate, refer to Figure 5. Attach the bypass assembly and connec-
tion fitting to the control valve and hand-tighten only. Study the installation drawings provided (Figure 1, page 3-1) to determine the proper location
of the filtration system in relation to the other components of the water system (i.e. 3MWTS water softener, or water heater, if present) and install
appropriately.
Step 7
Shut off all water at main supply. On a PRIVATE WELL SYSTEM, turn off power to pump and drain
pressure tank. Make certain pressure is relieved from complete system by opening nearest faucet
to drain system. SHUT OFF FUEL SUPPLY TO HOT WATER HEATER.
a) Cut main supply line as required to fit plumbing to the INLET and OUTLET of the pressure regu-
lating valve (not supplied). Pressure regulating valve to be set at no greater than 50 psi. Hold
nipples with a wrench while tightening. Use only thread tape on all plastic pipe threads as most
pipe dope compounds can deteriorate plastics. DO NOT apply heat to any plumbing attached to
the pressure regulating valve as damage may result.
b) Cut main supply line as required to fit plumbing to the INLET and OUTLET of the AERATION TANK.
Hold nipples with a wrench while tightening. Use only thread tape on all plastic pipe threads
as most pipe dope compounds can deteriorate plastics. DO NOT apply heat to any plumbing
attached to the AERATION TANK as damage may result. You may consider installing a 3-valve
bypass.
c) Cut main supply line as required to fit plumbing to the INLET and OUTLET of the filtration system. Hold nipples with a wrench while tightening. Use
only thread tape on all plastic pipe threads as most pipe dope compounds can deteriorate plastics. DO NOT apply heat to any plumbing attached to
the filtration system as damage may result.
d) GAST LOA-P109-AA Compressor must be wired to be powered whenever the well pump runs. Suggest a qualified electrician be contacted if there is
any doubt about this procedure. Voltage requirements are 110V/60Hz. Connecting improper voltage may result in damage to the GAST LOA-P109-AA
Compressor. An alternate method to power the air compressor is to use a flow switch, see Page 3-2 “Wiring Instructions” on how to install and wire
the flow switch (Model FS-1).
e) Run air vent line from AERATION TANK to a drain. This is done so any entrained moisture will go to drain when the air release vents.
CAUTION
To reduce the risk associated with property damage due to water leakage:
• Donotinstallsystemwherewaterlinescouldbesubjectedtovacuumconditionswithoutappropriatemeasuresforvacuumprevention;
• SHUT OFF FUEL OR ELECTRIC POWER SUPPLY TO WATER HEATER after water is shut off.
• Do not apply heat to any fitting connected to Bypass or Control Valve as damage may result to internal parts or connecting adapters.
OFF
OFF
OFF
OFF
BYPASS VALVE
OUTLET INLET
CONTROL
VALVE BODY
DRAIN LINE FLOW
CONTROL
ASSEMBLY
Figure 5
3-5

Step 8
The drain line connection can utilize either a 3/4” NPT or a 5/8” COMPRESSION connection. To utilize
the 5/8” connection use the provided nut and insert sleeve with a 5/8” OD rigid or semi-rigid material.
Slide the nut over the tubing or piping first, and then insert the sleeve into the piping or tubing until
flush. Finally insert piping or tubing in the drain elbow and thread the nut onto the elbow and hand
tighten only. To utilize the 3/4” NPT feature for a drain line connection, remove the 5/8” nut from the
elbow and provide your own connection device and piping for a drain line. Ensure the retaining clip is
securely in place before moving on. The discharge end of the drain line requires an air gap to prevent
a cross connection between grey water (sewage) and potable water (domestic). Refer to Figure 6 to
help with the installation.
a. 5/8” ID lengths up to 15 feet and heights lower or slightly higher than the control valve.
b. 3/4” ID length up to 25 feet in length and up to 4 feet above the control valve.
c. For distances higher or longer than previously stated, relocate the filter closer to the desired dis-
charge point or consult factory for advice. Avoid overhead drain lines as it may prevent desirable
performance.
Step 9
Connect the transformer to a suitable power supply that is non-switched to plug the transformer into that meets the local electrical code. The required
power source is 110V 60Hz.
Step 10
Set the time clock for the correct time of day and set the frequency for regeneration appropriately. See “HOW TO SET TIME OF DAY” on page 3-7 for set-
ting the time of day correctly.
Step 11
Determine proper backwashing frequency (See Section 4: Backwashing Instructions, page 4-1). To change the number of days between regenerations
see “HOW TO CHANGE DAYS BETWEEN REGENERATION” on page 3-8.
Step 12
Turn on the power supply to the well pump or open the valve in the water line to pressurize the water system. Check for leaks, correct as required. Locate
the regeneration button on the control valve and initiate a manual regeneration (see “HOW TO MANUALLY INITIATE IMMEDIATE REGENERATION”, shown
on page 3-7), ensure the bypass valve is in the bypass position. Once the control valve stops in the first position, unplug control valve so the valve will
not stage to another position to ensure proper start up and media classification. Open the INLET side of bypass 1/4 turn to allow water to run slowly to
the waste drain until no air is heard in the drain line. Then slowly open the inlet side of bypass fully and let run until the waste water is clear, it should
take about 10 minutes. Then open the OUTLET side of the bypass into the fully open position. During the initial backwash cycle it is normal for a small
amount of “fines” to appear at the drain for proper preparation of media bed. It will subside within a few regeneration cycles and should not alarm you.
Step 13
Plug the control valve into the 110V/60Hz power source once again and ensure the time clock is properly set for time and frequency of regeneration. The
control valve will stage by itself and back to the service position.
Installation is complete and system is ready for use.
3-6
Figure 6

3-7
HOW TO SET TIME OF DAY
Step 1) Press SET
Step 2) Use ▲and ▼to adjust the current time hour. Time display will be 12 hour with PM indicator with 60 Hz line fre-
quency detection on power-up. Time display will be 24 hour without the PM indicator with 50 Hz line frequency on
power-up. Press SET and proceed to step 3.
Step 3) Use ▲and ▼to adjust the current time minutes. Press SET to exit Set Time of Day.
Power Loss
If power is lost for more than 8 hours, the current time of day will need to be reset. If the system is in the middle of regeneration
upon power loss, the control will continue regeneration at the point of interruption when power is restored.
Error Message
Contact the OEM for assistance if the display shows “E1,” “E2,” “E3” or “E4.” These messages are indications the valve did not
function properly.
HOW TO MANUALLY INITIATE IMMEDIATE REGENERATION
If a system needs to be regenerated before the next scheduled time, manual regeneration can be initiated. This may be neces-
sary during times of heavy water usage, including house guests or heavy laundry days.
To initiate an immediate manual regeneration, press ▲and ▼simultaneously for three seconds. This request cannot be can-
celled.
HOW TO MANUALLY INITIATE DELAYED REGENERATION
To initiate a manual regeneration at the preset delay time, press ▲and ▼simultaneously. Release. An arrow will point to REGEN
if regeneration is expected “tonight.” To cancel, press ▲and ▼simultaneously. Release.
STEP 1
SET
STEP 2
SET
Regen
Min. Fill
Regen
Time
Time
PM
Days To
Regen
STEP 3
SET
Regen
Min. Fill
Regen
Time
Time
PM
Days To
Regen
SET
Regen
Min. Fill
Regen
Time
Time
PM
Days To
Regen
Arrow will point to Regen if a
regeneration is expected “Tonight.”
SET
Regen
Min. Fill
Regen
Time
Time
PM
Days To
Regen

3-8
TO SET TIME OF REGENERATION AND DAYS BETWEEN REGENERATION
Follow these steps for inital set-up of or to make adjustments to the time of regeneration and/or the days
between regenerations. The number of days between regenerations may need to be varied based on usage
and water conditions.
STEP 1
Press “SET” and ▲ for approximately 3 seconds. (This step will not appear if the 7-day clock option is
selected.)
STEP 2
Set Regeneration Time Hour. Set the time for regeneration to start using the ▲and ▼arrows. Press SET to
go to the next step.
STEP 3
Set Regeneration Time Minutes using the ▲and ▼arrows. Press SET to go to the next step.
STEP 4
Set Number of Days between regeneration cycles using the ▲and ▼arrows.
STEP 5
Press SET to complete and return to normal operation.
HOW TO CHANGE THE REGENERATION PROGRAM SETTINGS
STEP 1 - Press and hold SET HOUR and buttons simultaneously until the display begins flashing (usually
about three (3) seconds).
STEP 2 - Press and hold SET HOUR and buttons simultaneously until the display begins flashing (usually
about three (3) seconds).
STEP 3 - Press the SET HOUR to change the display to P8 or P9.
STEP 4 - Press the SET HOUR button five (5) times to return to the display mode. The time of day should be in
the display.
STEP 1
SET
STEP 2
SET
Regen
Min. Fill
Regen
Time
Time
PM
Days To
Regen
STEP 3
SET
Regen
Min. Fill
Regen
Time
Time
PM
Days To
Regen
3 seconds
STEP 4
SET
Regen
Min. Fill
Regen
Time
Time
PM
Days To
Regen

3-9
Control Valve Function and Cycles of Operation
The AC adapter comes with a 15 foot power cord that is designed for use with the control valve. The AC adapter is for dry location use only. If the power
goes out, only the time of day needs to be reset. All other settings are permanently stored in the non-volatile memory.
The following chart shows the time for the backwash and rapid rinse cycles for the three available programming options.
Regeneration Cycles and Times for Different Programs
Program Number Length of Cycle Times (Minutes)
BACKWASH (C1) RAPID RINSE (C4)
P7 6 4
P8 10 6
P9 14 8
Note: The 3MAPPM Iron Reduction Filtration System is factory preset to program number P7, changing the setting to P8 or P9 is rarely needed. But if a change
is desired, please refer to “How to Change the Regeneration Program Settings” on page 3-8.
HOW TO SET TIMER CONTROL
SET
HOUR
Regen
Min. Fill
Regen
Hour
Time - Hour
PM
Days To Regen
Power Loss
If the power goes out, current time of day will need to be reset. If the power goes out while the system is
regenerating, the cycle picks up where it was when the power went out.
Error Message
If “E1” “E2” or “E3” appears on the display, contact your Dealer/Installer or our Customer Care Team at
855-3M-WATER (855-369-2837). These are error codes and will need to be resolved before the control
valve will function. These codes indicate that the control valve did not function properly.
USER DISPLAYS
General Operation
When operating, the system will either display the current time of day or the days remaining until the next regen-
eration. Use ▲or ▼ to toggle between the two displays. If the remaining days is at 1, the system will regenerate
at the preset time.
An arrow will appear pointing to REGEN when the system calls for regeneration.
Regeneration Mode
When the system is regenerating, untreated water will be used. Therefore, systems are typically set to regenerate
during times of low water usage—such as when the household is asleep.
During regeneration, the arrow will point to REGEN and the display will change to Regeneration Cycle Display,
indicating the time remaining. The system automatically runs through the steps of regeneration; upon comple-
tion, treated water is ready for use.
SET
Regen
Min. Fill
Regen
Time
Time
PM
Days To
Regen
SET
Regen
Min. Fill
Regen
Time
Time
PM
Days To
Regen
Arrow will point to Regen
if a regeneration is
expected “Tonight.”

CAUTION
To reduce the risk associated with property damage due to water leakage:
• Read and follow Use Instructions before installation and use of this system.
• Installation must comply with existing state or local plumbing codes.
IMPORTANT NOTES
•Failuretofollowinstructionsmayresultinleakageandwillvoidwarranty.
Special Service Instructions:
Under normal circumstances removal of valve should never be required. However, if it must be removed, it can be done by rotating the valve head assembly to
the left (counter-clockwise). Pressure should be relieved before attempting any disassembly. Upon reassembly, all o-rings should be lubricated with silicone
grease.
3-10

3-11
Figure 10 Figure 11
Figure 8 Figure 9
BYPASS VALVE OPERATION
Figure 7 Figure 8
Figure 9 Figure 10

4-1
Section 4: BACKWASHING INSTRUCTIONS
Periodic BACKWASHING of the 3MAPPM Series Iron Reduction Filtration System bed is required to flush out the entrapped iron that has accumulated. This
procedure is performed automatically at 1:00 a.m. for a period of approximately ten (10) minutes, and will not interfere with a softener regeneration which is
usually set for 2:00 a.m.
TO SET BACKWASH FREQUENCY FOR NORMAL HOUSEHOLD APPLICATIONS:
To determine and set BACKWASH FREQUENCY, follow these instructions:
1) Select BACKWASHING FREQUENCY SCHEDULE corresponding to your model (please see next page).
2) Locate box intersected by number of persons in your family and iron concentration of water (if iron concentration is between two numbers in SCHEDULE,
use higher number.)
3) Number in box represents number of times, in 12 days, timer should be set to regenerate. Refer to HOW TO SET TIME CONTROL, page 3-9 to set timer.
EXAMPLE: You have model 3MAPPM150, 4 in family and 8 ppm iron. Refer to SCHEDULE for model 3MAPPM150 and locate box intersected by 4 in family and
8 ppm iron. The figure “2” in box indicates a BACKWASH frequency of two times per 12 days (if a “1”, “3”, “4”, “6”, or “12” were in box, frequencies of once,
three, four, six and twelve times per twelve days, respectively, would be indicated.)
IMPORTANT NOTE
The BACKWASHING FREQUENCY SCHEDULES are based on average water consumption rates and are merely guides. They are NOT intended to be used if
water used by outside spigots, a swimming pool, geothermal heat pump, or other high water usage devices or activities are to be treated by the 3MAPPM
Series Iron Reduction Filtration System. If your application includes any of these, and you have already determined your model 3MAPPM Series Iron Reduction
Filtration System is capable of handling the flow rates involved, refer to the next paragraph for instructions on setting BACKWASH FREQUENCY.
TO SET BACKWASH FREQUENCY FOR NON-STANDARD HOUSEHOLD APPLICATIONS:
If your filter is to be used for reasons covered above, the BACKWASHING FREQUENCY SCHEDULE is not applicable, determine the backwashing frequency as
follows:
1) Estimate DAILY IRON REDUCTION by multiplying iron concentration by estimated daily water consumption (use 75 gals. per person per day for normal
household applications):
Est. Daily Water Usage ______ x Iron Concentration _____ = Daily Iron Reduction ____________
(gals.) (ppm) (ppm - gals.)
2) Calculate BACKWASH FREQUENCY by inserting DAILY IRON REDUCTION from above into following formula (refer to specifications for IRON REDUCTION
CAPACITY of your model):
Iron Reduction Capacity of Your Model _________ ÷ Daily Iron Reduction _________ = Backwash Frequency _________
(ppm-gals) (ppm-gals.) (days)
The resulting number of days between backwashings should be converted to the nearest MORE FREQUENT obtainable timer setting (i.e., a calculated fre-
quency of 3.7 days should be converted to a 3 day interval, and a 9.2 frequency to a 6 day interval). It is not possible, however, to set the timer less frequently
than once every twelve (12) days.
If your water contains a high iron concentration, manganese, tannins or hydrogen sulfide it may be advisable to increase the backwash frequency up to daily,
if necessary. It should be noted, however, that increasing the frequency or duration of backwashing WILL NOT overcome an insufficient pumping rate.

4-2
BACKWASHING FREQUENCY SCHEDULES
MODEL: 3MAPPM150
Persons in
Family
IRON CONTENT (PPM)
246810
111111
211111
311112
411122
511122
611223
MODEL: 3MAPPM200
Persons in
Family
IRON CONTENT (PPM)
246810
111111
211111
311111
411111
511122
611222
711222
811222
912233
1012233

Problem Possible Cause Solution
1. Timer does not display time of day a. AC adapter unplugged a. Connect power
b. No electric power at outlet b. Repair outlet or use working outlet
c. Damaged AC adapter c. Replace AC adapter
d. Damaged PC board d. Replace PC board
2. Timer does not display correct time of
day
a. Switched outlet a. Use an unswitched outlet
b. Time of day not set correctly b. Reset time of day
3. Control Valve regeneration at wrong
time of day
a. Power outages a. Reset control valve to correct time of day
b. Time of day not set correctly b. Reset to correct time of day
c. Time of regeneration incorrect c. Reset regeneration time
4. Error followed by a code number
Error code E1- Unable to recognize
start of regeneration
Error code E2- Unexpected stall
Error code E3- Motor ran too long.
Timed out trying to reach next
cycle position
If other codes appear contact factory
a. Control valve has just been serviced a. Press SET HOUR and DOWN for 3 seconds
or unplug power source jack (black wire)
from the circuit board and plug back in to
reset control valve
b. Foreign matter is lodged in control valve b. Check piston and spacer stack assembly
for foreign matter
c. High drive forces on piston c. Replace piston(s) and spacer stack assembly
d. Control valve piston not in home position d. Press SET HOUR and DOWN for 3
seconds or unplug power source jack
(black wire) from the circuit board and
plug back in to reset control valve.
e. Motor not inserted fully to engage pinion, motor
wires broken or disconnected, motor damaged
e. Check motor and wiring. Replace motor if
necessary
f. Drive gear label dirty or damaged, missing or broken
gear
f. Replace or clean drive gear
g. Drive bracket incorrectly aligned to drive bracket g. Reseat drive bracket properly
h. PC board incorrectly aligned to drive bracket h. Replace PC board
i. PC board incorrectly aligned to drive bracket i. Ensure PC board is correctly snapped on to
drive bracket
5. Control valve stalled in regeneration a. Motor not operating a. Replace motor
b. No electric power at outlet b. Repair outlet or use working outlet
c. Damaged AC adapter c. Replace AC adapter
d. Damaged PC board d. Replace PC board
e. Broken drive gear or drive cap assembly e. Replace drive gear or drive cap assembly
f. Broken piston retainer f. Replace piston retainer
g. Broken main or regenerant piston g. Replace main or regenerant piston
6. Control valve does not regenerate
automatically when UP and DOWN
buttons are depressed and held.
a. AC adapter unplugged a. Connect AC adapter
b. No electric power at outlet b. Repair outlet or use working outlet
c. Broken drive gear or drive cap assembly c. Replace drive gear or drive cap assembly
d. Damaged PC board d. Replace PC board
7. Control valve does not regenerate
automatically, but does when UP and
DOWN buttons are depressed and held
a. Damaged PC board a. Replace PC board
b. Set-up error b. Check control valve set-up procedure
5-1
Section 5: TROUBLESHOOTING - CONTROL VALVE