MAYTAG M-550 Drinking Water System User Manual

User Manual for MAYTAG models including: M-550 Drinking Water System, M-550, Drinking Water System, Water System

DRINKING WATER SYSTEM MODEL: M-550

File Info : application/pdf, 16 Pages, 2.40MB

installation-instruction-w11292123-revB

INSTALLATION, OPERATION,

AND SERVICE MANUAL

THANK YOU for purchasing this high-quality product.

DRINKING WATER SYSTEM MODEL: M-550

Tested and certified by NSF International against NSF/ANSI Standard 58 for the reduction of the claims specified on the
Performance Data Sheet.

This drinking water system contains replaceable treatment components critical for effective performance. It is the user's responsibility to, and the manufacturer strongly recommends that the user, periodically test the product water to verify that system is performing satisfactorily.

W11292123B

If MAYTAG® replacement filters and modules are not used, health related contaminant reduction claims are invalid.

TABLE OF CONTENTS
DRINKING WATER SYSTEM SAFETY................................................................................................................................................................ 3 INTRODUCTION................................................................................................................................................................................................... 4
MECHANICAL FILTRATION/ACTIVATED CARBON .......................................................................................................................................... 4 MEMBRANE....................................................................................................................................................................................................... 4 ACTIVATED CARBON ........................................................................................................................................................................................ 4 IN-LINE ACTIVATED CARBON POST FILTER ................................................................................................................................................... 4 AUTOMATIC SHUT-OFF VALVE......................................................................................................................................................................... 4 SYSTEM SPECIFICATIONS................................................................................................................................................................................. 6 QUALIFIED SYSTEM PERFORMANCE............................................................................................................................................................. 6 RECOMMENDED OPERATING LIMITS FOR FEED WATER ............................................................................................................................. 6 SYSTEM LAYOUT................................................................................................................................................................................................. 7 MAJOR SYSTEM COMPONENTS .................................................................................................................................................................... 7 TOOLS RECOMMENDED FOR INSTALLATION................................................................................................................................................ 7 SITE SELECTION FOR MAJOR SYSTEM COMPONENTS .............................................................................................................................. 7 INSTALLATION INSTRUCTIONS......................................................................................................................................................................... 8 OPERATION AND MAINTENANCE..................................................................................................................................................................... 9 NORMAL OPERATION....................................................................................................................................................................................... 9 CHANGING MODULES ................................................................................................................................................................................... 10 IN-LINE ACTIVATED CARBON POST FILTER ASSEMBLY............................................................................................................................. 10 CHANGING THE IN-LINE ACTIVATED CARBON POST FILTER..................................................................................................................... 10 EXPLODED VIEW AND PARTS LIST ................................................................................................................................................................ 11 PARTS LIST...................................................................................................................................................................................................... 12 OTHER COMPONENTS................................................................................................................................................................................... 12 TROUBLESHOOTING GUIDE............................................................................................................................................................................ 13 WARRANTY ........................................................................................................................................................................................................ 15

DRINKING WATER SYSTEM SAFETY
NOTE: This drinking water system contains replaceable treatment components critical for effective performance. It is the user's responsibility to, and the manufacturer strongly recommends that the user, periodically test the product water to verify the system is performing satisfactorily. See the test kit(s) for sampling instructions. NOTE: This system is acceptable for treatment of influent concentrations of no more than 27 mg/L nitrate and 3 mg/L nitrite in combination measured as N and is certified for nitrate/nitrite reduction only for water supplies with a pressure of 40 PSIG (280 KPa) or greater. NOTE: This system confirms to NSF/ANSI Standard 58 for pentavalent arsenic reduction. See the Performance Data Sheet and Arsenic Facts section for an explanation of reduction performance.
Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system. Systems certified for cyst reduction may be used on disinfected waters that may contain filterable cysts.
3

INTRODUCTION
The Drinking Water System M-550, uses combination of filtration technologies to reduce unwanted contaminations in water supply. Refer to these below properties of the water system which provide the best and sparkling drinking water:

MECHANICAL FILTRATION/ACTIVATED CARBON
The Sediment/Carbon module is designed to reduce the larger particles such as silt, rust and scale. Its 5 micron [equal to 0.0002" (0.0005 cm)] nominal rating helps to give maximum life to the Membrane. The activated carbon in the module is designed to reduce any chlorine that can be present in the Feed Water. This pre-treatment is also necessary for the protection of membrane.
MEMBRANE
The Membrane is the heart of the filtration system. It is designed to reduce the dissolved mineral content of the water. Minerals picked up in the environment by the water are measured as Total Dissolved Solids (TDS). In this process, dissolved minerals are separated from the incoming water (Feed Water) to produce the Product water (Permeate). The excess minerals are rinsed to drain pipe (Reject Water).
The membrane is specially constructed, a fully aromatic polyamide film and classified as Thin Film Composite (T.F.C). The spiral wound structure of the Membrane provides maximum surface area for water production and is less susceptible to fouling by particulate matter, turbidity and colloidal materials.

ACTIVATED CARBON
The Activated Carbon module contains carbon particles with a vast network of pores. The tremendous surface area of these pores (typically 800-1200 g/m² of carbon) gives the carbon very good adsorptive sites for substances that contribute to tastes and odors.
IN-LINE ACTIVATED CARBON POST FILTER
The In-Line Activated Carbon Post Filter is located after the Holding Tank and designed to reduce the tastes and odors that can pass through the system. It adds a final polish to the water.
AUTOMATIC SHUT-OFF VALVE
The Automatic Shut-Off (ASO) Valve closes the Feed Water supply when Holding Tank is full and unit is not producing water. This avoid excess Reject Water from entering into the drain.

Close-up of Manifold 1

See Page 8

DRAIN (3/8" Black)

PRODUCT

(3/8" Blue)

9 8

LOCATE DRAIN CLAMP ABOVE
"P" TRAP
TANK (3/8" Yellow)

DRAIN (1/4" Black)
INLET (1/4" Red)
(1/4" Yellow)

ACTIVATED MEMBRANE SEDIMENT/

CARBON MODULE CARBON

MODULE

4" (10.16 cm) MIN

NOTE: DISPENSING FAUCET, DRAIN CLAMP AND FEED WATER VALVE ARE NOT PART OF THIS CERTIFIED SYSTEM

1. Dispensing Faucet with

5. In-line Activated Carbon Post Filter

Air Gap 2. Cover

6. Drain Clamp 7. Feed Water Valve (cold water line only)

3. Manifold 4. Polytube Tee

8. Drinking Water Holding Tank 9. Holding Tank Shutoff Valve (Open Position)

Figure 1: Typical M-550 under sink Installation Diagram

FLOOR

Close-up of Manifold
1
Refer to section "Manifold Assembly Instructions" on Page 8

PRODUCT

(3/8" Blue)

TANK (3/8" Yellow)

5 (1/4" Yellow)

7 8
INLET (1/4" Red)
DRAIN (1/4" Black)
1" AIR GAP REQUIRED

MEMBRANE

MODULE

ACTIVATED SEDIMENT/

CARBON

MODULE

MOUNT HOLDING TANK ON SHELF OR
STRAP BETWEEN FLOOR JOISTS
(shelf or straps not included)

BASEMENT FLOOR

NOTE: FOR REFRIGERATOR WATER DISPENSER OR ICE MAKER HOOKUP, TEE INTO 3/8" BLUE TUBING TO DISPENSING FAUCET. NOTE: DISPENSING FAUCET AND FEED WATER VALVE ARE NOT PART OF THIS CERTIFIED SYSTEM NOTE: IF AIR GAP IN FAUCET IS NOT USED IN BASEMENT INSTALLATIONS, A PROPER AIR GAP MUST BE CREATED. PLEASE CHECK WITH LOCAL PLUMBING CODES. SEE EXAMPLE ABOVE.

1. Dispensing Faucet 2. Cover 3. Holding Tank Shutoff Valve (Open Position) 4. Drinking Water Holding Tank

5. Manifold 6. In-line Activated Carbon Post Filter 7. Polytube Tee 8. Feed Water Valve (cold water line only)

Figure 2: Optional M-550 Basement Installation Diagram

SYSTEM SPECIFICATIONS

QUALIFIED SYSTEM PERFORMANCE

For good performance of a Membrane consider the pressure, temperature, pH and TDS. The below Table 1 must be used for comparison purposes only.

Specifications

U.S.

Metric

Membrane Production1

41 - 53 gallons/day

155 - 201 (L/day)

Membrane TDS Reduction1 System Production²

96% minimum 11 gallons/day

96% minimum 41 (L/day)

Recovery Rating² Efficiency Rating²

26% 12%

TDS Reduction²

90%+ typical

Drain (reject water) Flow

3-5 x product flow

Empty Storage Tank Pre-charge

5 - 7 PSIG air

35 - 48 kPa air

Storage Tank Capacity2

1.7 gallons

Table 1: Qualified System Performance

6.4 L

1Industry standards measure membrane performance with no back pressure on the product water, at 65 PSIG (448 kPa) and 77 °F (25 °C). Further conditions on the above are 250 ppm TDS. Production rate and TDS reduction figures are for a new Membrane that has been rinsed for 24 hours. The production rate of a new Membrane can decrease by 10% per year or more if the scaling and fouling tendencies of the Feed Water increase.

2Measured at 50 PSIG (345 kPa), 77 °F ± 2 °F, 750±40 mg/l TDS per section 6 of NSF/ANSI Standard 58. Recovery rating means the percentage of the influent water to the membrane portion of the system that is available to the user as reverse osmosis treated water when the system is operated without a storage tank or when the storage tank is bypassed. Efficiency rating means the percentage of the influent water to the system that is available to the user as reverse osmosis treated water under operating conditions that approximate typical daily usage. This reverse osmosis system contains a replaceable component critical to the efficiency of the system. Replacement of the membrane should be with one of identical specifications, as defined by the manufacturer, to assure the same efficiency and contaminant reduction performance.

RECOMMENDED OPERATING LIMITS FOR FEED WATER

Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system. Systems certified for cyst reduction may be used on disinfected waters that may contain filterable cysts.

Specifications

T.F.C. Membrane

Water Pressure

40 - 100 PSIG (280 - 690 kPa)

TDS

2000 ppm (also mg/l) max.

Temperature

40-100 °F (4-38 °C)

4-11 (optimum rejection at pH 7.0 - 7.5)

Hardness

Less than 10 gpg (170 mg/l) or soften

Iron

Less than 0.1 ppm (also mg/l)

Manganese

Less than 0.05 ppm (also mg/l)

Hydrogen Sulfide

None

Chlorine

See note

Bacteria

Must be potable**

Table 2: Recommended Operating Limits

NOTE: Chlorine will damage a T.F.C. Membrane. The Sediment/Carbon module is designed to reduce chlorine from the Feed Water. Make sure to change the filter every 6 - 12 months or more often if the water contains more than 1 PPM chlorine.

SYSTEM LAYOUT

MAJOR SYSTEM COMPONENTS
These components comprise the Drinking Water System: (Refer to Figure 1 for general system layout) Manifold assembly Housings and Housing O-rings Drinking Water Holding Tank Dispensing Faucet* Feed Water Valve* Drain Clamp* Plastic Tubing and tube connectors Membrane sealed in a plastic bag Sediment/Carbon Module, shrink wrapped Activated Carbon Module, shrink wrapped In-Line Activated Carbon Post Filter, shrink wrapped System Cover Water Quality Test Kit Other items which are necessary for installation can include:
Wood screws or machine screws,
Nuts for mounting the manifold,
Concrete anchors for hanging on basement wall,
Additional tubing or tube connectors,
Plastic wire ties for organizing tubing. * Not part of this certified system.
Tools Recommended for Installation
Gather the required tools as mentioned below before starting installation. Read and follow the instructions provided with any tools listed here: 3/8" variable speed electric drill Extension work light with outlet
Safety glasses (See section "Drinking Water System Safety" on page 3)
Porcelain hole cutter kit Greenlee hole punch and 1/8" (2.5 cm) and 1/2" (1.3 cm)
metal drill bits for pilot hole. Center punch and hammer 1¼" wood bit Concrete drill bits Assorted wood and metal drill bits including 7/32" metal drill
bit. Phillips head and flat blade screwdrivers 1/2" (1.3 cm), 9/16" (1.4 cm) and 5/8" (1.6 cm) open end
wrenches Teflon tape Wide masking tape or duct tape Plastic tubing cutter Extra plastic tubing Low range air pressure gauge Bicycle hand air pump Small bottle of liquid Chlorine bleach Graduated measuring cylinder Paper towels, whisk broom and assorted clean up materials. ®TEFLON is a registered trademark of Chemours

Site Selection for Major System Components
IMPORTANT: Install tubing only in areas where temperatures will remain
above freezing. Connect to a portable water supply only. The system was designed to fit under a sink, however because of space limitations or other reasons, the system's flexible design allows for other locations. While determining the location, the access to a cold water tap line, the household drain, and ease of filter replacement are important considerations. If winter temperatures are severe, the area should be above the minimum temperature listed in Table 2 for proper performance. Do not expose unit or tubing to direct sunlight. 1. Dispensing Faucet: The faucet should be placed near the
sink where drinking water is normally obtained. Convenience of use (filling of water pitchers and glasses), and an open area beneath the faucet under the sink for attaching tubing are considerations. 2. Drinking Water Holding Tank: Place the Holding Tank where it is convenient within 10 feet of the faucet, under the sink or in an adjacent cabinet are the best choices. If a longer run of tubing is required,the tubing must be the 3/8" (1 cm) outside diameter (OD) size, to prevent the high pressure drop. Remember that these tanks can weigh up to 30 pounds when full of water. A firm, level area is required. 3. Manifold Assembly: The manifold can be installed on either the right or left side of the under sink area or a cabinet. The right side is recommended because all the tubing will be to the back of the cabinet and out of the way. Installation in the basement is also an option, one location is near the laundry/utility sink where cold potable water and drain access is handy. The mounting location should allow adequate clearance and accessibility for cartridge changes. 4. Feed Water Connection: The Feed Water valve must be located close to the manifold assembly as much as possible. Softened water is preferred as it will extend the life of the Membrane. 5. Drain Connection: The Reject Water must go to drain through an anti-siphon air gap. The air gap can be provided in the base of some faucets. If discharging into a utility sink or standpipe, an air gap of greater than 1" (2.54 cm) above the flood rim must be provided. Do not connect the system drain line to the dishwasher drain or near the garbage disposal. Back pressure from these units can cause overflow to air gap.
7

INSTALLATION INSTRUCTIONS

IMPORTANT:
Plumbing shall be installed in accordance with the International Plumbing Code and any local codes and ordinances.
Connect to a portable water supply only.
Some codes can require installation by a licensed plumber; check with the local plumbing authority prior to installation.
In restricted under-sink areas, it is easier to install the faucet first. Allow adequate tubing lengths for any final component position.
Faucet Installation: This certified system does not include a faucet. Select a faucet that has a 3/8" (1 cm) tubing connection and install as per faucet manufacturer's instructions. Connect 3/8" (1 cm) blue tubing to faucet treated water port and if using air gap faucet connect 1/4" (0.6 cm) and 3/8" (1 cm) black tubing. In order to maintain integrity of this NSF/ANSI Standards 58 listed Drinking Water System, faucet shall meet NSF/ANSI Standards 61/372, material and structural integrity requirements of NSF/ANSI Standards 42 or 58, and have an air gap with connections complying to local plumbing codes. Consult factory for approved faucets.
Feed Water Valve Installation: In order to maintain integrity of this NSF/ANSI Standard 58 listed Drinking Water System, the feed water valve hardware connecting the 1/4" (0.6 cm) red tubing to the plumbing system shall meet NSF/ANSI Standards 51 and 61/372. Consult factory for approved hardware. Decide on location. Do not connect to a hot water feed line. If you are not sure of the supply, run the hot water and feel the supply piping. Water over 100 °F (37.8 °C) can cause permanent damage to the Membrane. 1. Shut off the water supply and drain the line. 2. Hardware to connect the 1/4" (0.6 cm) red tubing to the plumbing system is not part of this certified system. Install hardware in accordance with plumbing codes that will allow connection of 1/4" (0.6 cm) red tubing.
Drain Clamp Installation: Choose the drain outlet location as per the section "Site Selection for the Major System Components". Refer to the below instructions for discharging into the sink drain pipe. (Refer to Figure 1.):

1. Position the Drain Clamp on the sink drain pipe above the drain trap. Allow room for drilling. Tighten securely.
2. Use the Clamp port as a drill guide, drill a 7/32" hole through the wall of the drain pipe. Do not penetrate the opposite side of the pipe.
3. Locate the 3/8" (1 cm) Black Drain Tubing connected to the Dispensing Faucet. Route tubing to the Drain Clamp and trim to length.
NOTE: Cut the Polytube clean and square. Failing to do so can cause poor connections and possible leaks.
IMPORTANT: The lowest point of the line must be the point of connection to the Drain Clamp. Make sure that there is no sag in the line as this can cause excessive noise when reject water is flowing to drain.
* Refer to Figure 3: Insert the tubing into the Drain Clamp. Make sure that the tubing is inserted correctly and tightly to create a pressure-tight connection.
NOTE: If you want to pull the tubing out for some reason then push the ring around the tubing in and pull the tubing out.
Manifold Assembly Instructions: Locate the site as per the section "Site Selection for the Major System Components". Various installation sites will require different types of mounting fasteners; make sure that the selected fastener provides a tight, solid mounting. A support panel can be necessary on thin cabinet walls or to span between wall studs on particle board or drywall. Do not drill through exterior cabinet walls or leave sharp wood screw points exposed in readily accessible cabinet interiors. The close proximity of a dishwasher or a trash compactor may require special fabrication of a mounting plate. 1. The mounting bracket will accept either #10 or #12 mounting screws spaced on 6" (15 cm) centers. Allow at least 4" (10 cm) of clearance beneath the filter housings to accommodate filter changes. Mark the two locations (the bracket can be used as a template). Install the screws and tighten them until the heads are about 5/8" (1.5 cm) from the wall.

6
5 3

1. Drain Pipe

4. Black Drain Tubing

2. 1/4" (0.6 cm) Nut

5. 1/4" (0.6 cm) Screw

3. Drain Clamp Black Plate

6. Drain Clamp Front Plate

Figure 3: 3/8" (1 cm) Drain Clamp Assembly

REDSRTARIINCTOR

DRAIN

OUT

RED

BLACK

YELLOW

Figure 4: Feed Water Tubing

2. Locate the 1/4" (0.6 cm) Red Feed Water Tubing as shown in Figure 4. Remove the red plug from the fitting labeled "In" on the manifold and insert the tubing. Reference the special supplement sheet in the carton for proper connection of all tubing and removal of plugs. Run the tubing along its course to the Feed Water connection, trim to length.

3. Locate the 1/4" (0.6 cm) Black Drain Tubing connected to the Dispensing Faucet as shown in Figure 1. The end of the Black Drain Tubing that must be inserted into the "Drain" port on the manifold will have a "Drain Restrictor" in it. Remove the black plug from the fitting labeled "Drain" on the manifold and insert the tubing. Allow the tubing to relax, then press firmly again to insure proper seating.
4. Locate the 1/4" (0.6 cm) yellow tubing with the tee attached to one end as shown in Figure 4. Remove the yellow plug from the fitting labeled "Out" on the manifold and insert the tubing.
5. Locate the 3/8" (1 cm) Blue Product Water Tubing connected to the Dispensing Faucet. Firmly press one end into the tee. (Refer to Figure 1.) The fittings will grab the tubing and seal it in place. Make sure that the tubing is pressed all the way in to create a pressure tight connection.
NOTE: If you want to pull the tubing out for some reason, push the ring around the tubing in and pull the tubing out.
6. Hang the Manifold Assembly on the mounting screws and tighten. Do not over tighten.
7. Remove the wrapping from the In-Line Activated Carbon Post Filter. Slice 3/8" (1 cm) Blue Polytube where it would be convenient to install and change the In-Line Filter. Make a clean straight cut to insure proper connections. The "Out" port on the In-Line Filter should be toward the faucet. Firmly press in the tubing. The fitting will grab the tubing and seal it in place. Make sure that the tubing is pressed all the way in to create a pressure tight connection.
Position the Drinking Water Holding Tank and Make the Final Hose Connections:
1. Check the tank precharge pressure. Make sure that it is between 5 - 7 PSIG (34 - 48 kPa). If not, use a bicycle hand pump or other pump to bring the pressure up to the 5 - 7 PSIG (34 - 48 kPa) range.
2. Pull the cap/plug off the top of the tank where the Tank Shut-Off should go. (Refer to Figure 1)
3. Wrap Teflon tape three times around the 1/4" (0.6 cm) male outlet thread. Wrap in the direction of the threads (clockwise when looking down on the Holding Tank). The Teflon tape will act as a thread sealant. Screw on the Holding Tank Shut-Off Valve.
4. Locate the 3/8" (1 cm) Yellow Tubing. Firmly press one end into the Holding Tank Shut-Off Valve and the other end into the tee. (Refer to Figure 1.) The fittings will grab the tubing and seal it in place. Make sure that the tubing is pressed all the way in to create a pressure tight connection.
Start Up:
Installing the modules and membrane and sanitizing the holding tank:
1. Open the Dispensing Faucet and close the Holding Tank Shut-Off Valve (the handle should be perpendicular to the valve body).
2. Remove the plug on the underside of the manifold labeled "SEDIMENT/CARBON". Unwrap the Sediment/carbon Module. Make sure that the module O-ring is pressed firmly in the groove. Engage and firmly tighten the module by hand only.
3. Remove the plug labeled "MEMBRANE" from the underside of the manifold. Trim the top of membrane bag, exposing the white plastic seal. While holding onto bag, insert membrane into manifold. (The O-rings must be up towards the manifold.) Take the remaining housing and insert housing O-ring into its groove. Engage and firmly tighten housing by hand only.
®TEFLON is a registered trademark of Chemours

4. Remove the plug labeled "ACTIVATED CARBON" from the underside of the manifold. Unwrap Activated Carbon Module. Make sure that the module O-ring is firmly pressed in groove. Engage and firmly tighten the module by hand only.
5. Close the Holding Tank Valve.
6. Disconnect the yellow product water tubing that runs from the Holding Tank to the Elbow on top of the Manifold (see Fig. 1, page 3). Put 50 drops of bleach [this is equal to 1/2 tsp. or 3 ml (0.003 L)] into the tubing and reconnect the Elbow.
Rinsing the system:
1. Slowly open the Feed Water Valve fully counter clockwise. 2. Open the Holding Tank Valve. 3. Check the Air Gap Window on the Dispensing Faucet to
make sure that the drain water is flowing. The system is now making water. 4. Do not open the Faucet for at least 8 hours. 5. Do not use the first three full tanks of water. IMPORTANT: The Membrane is shipped with a preservative in it. To ensure proper rinsing of the Membrane it is important to wait at least 8 hours before emptying each tank. When the Faucet is first opened, expect air and carbon fines (very fine black powder) from the Activated Carbon Module to be rinsed out. This is normal for the first tank of water or after the Activated Carbon Module is changed.
OPERATION AND MAINTENANCE
Normal Operation
1. It is normal for the Total Dissolved Solids (TDS) of the water to be higher than normal during the first 5 gallons (19 L) of operation; this is due to the sanitizing solution and the new Post Filters. After this water is rinsed to drain, the removal rate should stabilize at a value of greater than 75%. Water pressure affects the production rate and quality.
2. Systems produce drinking water at relatively slow rates; it can take up to 5 hours or more to fill the Holding Tank. Normal operation is to let the Holding Tank fill with water and then draw water as needed. When the pressure in the Holding Tank falls to a given pressure (as the water is being used) the ASO Valve will start water production and the system will refill the Holding Tank. When the Holding Tank is full and no water is being used, the ASO Valve will automatically shut off the feed water to conserve water. The more water that is used (up to the capacity of the system) the better the system will function. Other uses for the water are flowers, pets and rinsing glassware. With each use it is recommended that you run the faucet for at least 10 seconds prior to using water. This is especially important if the system has not been used daily. After periods of non-use, such as a week of vacation, it is better to empty the Holding Tank and allow the system to produce fresh water for use. If the system is not used for 3 - 4 weeks or longer, it is a good idea to re-sanitize the system and to change the pre-filter and post filters.
9

Changing Modules
IMPORTANT: This System contains modules which must be replaced at regular intervals to maintain proper performance. Use only factory approved modules.
All individuals should take adequate precautions when changing the filters, including wearing protective gloves, to avoid direct contact with the exhausted filters. See section "Drinking Water System Safety" on page 3. Recommended interval for changing the modules (not the Membrane) is every 6 - 12 months. Typical T.F.C. Membrane life expectancy is three years. Local conditions may dictate more frequent changes.
NOTE: If the Membrane is to be replaced, refer to "Start Up" in section "Installation Instruction" for the proper procedure.
Use a drip pan to catch any water that may spill when the Filter Modules are removed. Refer to Figure 1 for component location. 1. Close the Feed Water Valve by opening the Dispensing
Faucet. Allow the Holding Tank to empty. 2. Loosen and remove the Sediment/Carbon Module and the
Activated Carbon Module. 3. Discard the modules. 4. To sanitize the system and replace the modules:
Unwrap the new Sediment/Carbon Module.
Using an eyedropper put 5 ml (0.005 L) (this is approximately 1 tsp) of a good quality unscented 5¼% liquid household chlorine bleach down the center tube of the Module.
Check the Module O-ring for proper position in its groove, engage and tighten the Module by hand only.
Unwrap the new Activated Carbon Module.
Check the Module O-ring for proper position in its groove, engage and tighten the Module by hand only.
Close the Holding Tank Valve.
Disconnect the yellow product water tubing that runs from the Holding Tank to the Tee (see Figure 1). Put 50 drops of bleach [this is equal to 1/2 tsp. or 3 ml (0.003 L)] into the tubing and reconnect it to the Tee.
NOTE: Now is the convenient time to change the In-Line Activated Carbon Post Filter, (Refer to the section "Changing the In-Line Activated Carbon Post Filter").
Slowly open the Feed Water Valve. When water begins dripping out of the Dispensing Faucet, in the following order, close the Faucet and then open the Holding Tank Valve.
Do not open the Faucet for at least 8 hours.
Discard the first three full tanks of water produced, they will contain chlorine.

IN-LINE ACTIVATED CARBON POST FILTER
ASSEMBLY
Changing the In-Line Activated Carbon Post Filter
To Dispensing Faucet

3/8" (9.7 cm) Blue

OUT

3/8" (9.7 cm) Blue

In-Line Activated Carbon Post Filter

Figure 5: In-Line Activated Carbon Post Filter

1. Close the Feed Water Valve by turning fully clockwise. 2. Close the Holding Tank Valve and then open the Dispensing
Faucet to release the pressure. 3. Remove the In-Line Activated Carbon Post Filter. Disconnect
the used Post Filter by pressing in the connector's collar and at the same time pulling the tube out of the fitting. 4. Firmly reconnect the Polytube to new Post Filter. (Refer to Figure 5). Make sure that the tubing is pressed all the way in to create a pressure tight connection.
NOTE: If tubing needs to be pulled out for some reason, push the ring around the tubing in then pull the tubing out. 5. When water begins dripping out of the Faucet in the following
order: Close the Faucet and open the Holding Tank Valve.
When the Faucet is first opened, expect air and carbon fines (very fine black powder), from the new Post Filter to be rinsed out. This is normal for the first tank of water.

EXPLODED VIEW AND PARTS LIST

OUT

INLINE ACTIVATED CARBON POST FILTER ASSEMBLY

1
2 3 4
5 6 7
8

16 12
15
17 11
Figure 6: Exploded View
11

PARTS LIST

DRAWING NO. 1 2 3 4 5 6 7 8

PART NO. S2009 S2005 S2013 S2011 S2007 S2006 S2010
NSCTA0405MNGDRLD

S1276

S1277

S1340RSX-LEM

S7228X-M

S2116-6

14*

S1580

S7225X-M

S3072

S1405

18*

S1447

S7206W-JG

3PETJG14BLK

3PETJG14YEL

3PETJG14RED

3PETJG38YEL

3PETJG38BLU

3PETJG38BLK

*Not illustrated in Figure 6 "Exploded View"

DESCRIPTION
Self Tapping Screw ASO Cap ASO Cap O-Ring ASO Diaphragm-Large ASO Piston ASO Piston Ring ASO Diaphragm-Small Manifold Plate Assembly without Monitor (Includes item numbers 1 through 10 and 16.) Check Valve Check Valve Retainer T.F.C. Membrane Module 50 gallons/day (189 liter/day) Sediment/Carbon Module Drain Restrictor 60 gallons/day (227 liter/day) Water Quality Test Kit Activated Carbon Module Wrench for Housing 1/4"-3/8" Fitting Wrench Nitrate/Nitrite Test Kit In-Line Activated Carbon Post Filter 1/4" Black Poly Tube (5ft) 1/4" Yellow Poly Tube (5ft) 1/4" Red Poly Tube (5ft) 3/8" Yellow Poly Tube (5ft) 3/8" Blue Poly Tube (3ft) 3/8" Black Poly Tube (5ft)

Table 3: Part List

OTHER COMPONENTS (Refer to Figure 1)

DRAWING NO. 2 4 6 8 9

PART NO. S2123-CGRSLTD JG-PI301208S
S1117-01 C2000F JG-PPSV501222W

DESCRIPTION Cover MAYTAG® Cool Gray slotted 3/8" x 3/8" x 1/4" Union Tee 3/8" Drain Clamp Assembly Steel Holding Tank Holding Tank Shut-Off Valve

Table 4: Part List Typical M-550 under sink Installation Diagram

NOTE: Dispensing Faucet, Drain Clamp and Feed Water Valve are not part of this certified system.

TROUBLESHOOTING GUIDE

Problem Low quantity of Product Water from Holding Tank.
Low pressure at the Dispensing Faucet.
High Total Dissolved Solids (TDS) in the Product Water.

Possible Cause Feed Water Valve is plugged or closed. Clogged Sediment Module or Activated Carbon Module. Low water pressure.
Membrane is fouled.
Plugged In-Line Activated Carbon Post Filter. Air precharge pressure in Holding Tank is too high. Air precharge is too low. Air bladder in the Holding Tank is ruptured. Holding Tank Valve is closed. No drain flow, the Drain Restrictor is plugged. No drain flow, the drain orifice in the Dispensing Faucet is plugged. The Check Valve is stuck. The ASO Valve is malfunctioning. In-Line Activated Carbon Post Filter is plugged. Air precharge in the Holding Tank is too low.
Holding Tank Valve is partially closed. The Dispensing Faucet is out of adjustment or faulty. Heavy water use, Holding Tank is depleted. Low Water Production.
Clogged Sediment Module or Activated Carbon Module. Low Water Pressure.
Membrane O-ring is crimped. Membrane brine seal is not sealing up into the manifold head. Membrane is expended.

Solution Open Valve or unclog. Replace modules.
Feed Water pressure must be above 40 PSIG (276 kPa). See Feed Water operating limits. Correct reason of fouling, Replace Membrane. Replace Post Filter
Empty water from Holding Tank, and with the faucet open, adjust air pressure to 5 - 7 PSIG (35 - 48 kPa) range.
Replace tank.
Open Valve. Clear or replace the Drain Restrictor.
Clear or replace the Dispensing Faucet.
Free check. Replace ASO Valve components. Replace Post Filter.
Empty water from Holding Tank and with the faucet open, Adjust the air pressure to 5 - 7 PSIG (35 - 48 kPa) range. Check for leakage at the Air Valve Stem. Open Valve. Repair or replace Dispensing Faucet.
Allow Holding Tank to refill (adding a second Holding Tank will increase storage capacity). See Low Quantity of Product Water from Holding Tank section above. Replace Modules.
Feed Water Pressure must be above 40 PSIG (276 kPa). Check Feed Water Valve. Check O-ring. Check the brine seal.
If Membrane life is unusually short, find and correct the problem. Replace Membrane.

Problem High Total Dissolved Solids (TDS) in the Product Water (continued).
Tastes and odors in the Product Water
Drain Water overflows at the Dispensing Faucet
Faucet leaks or drips Fitting leaks in general

Possible Cause

Solution

The Product Water and Drain Water lines Correct plumbing. are reversed.

No drain flow, Drain Restrictor is clogged. Clear or replace Drain Restrictor.

No drain flow, the drain orifice in the Dispensing Faucet is plugged.

Clear or replace Dispensing Faucet.

The ASO Valve is not closing.

Repair or replace the ASO Valve Components.

New In-Line Post Filter or Activated Carbon Module not rinsed completely.

Flush with several full tanks of Product Water.

The Feed Water TDS has increased.

An increase in Feed Water TDS will give a corresponding increase in Product Water TDS.

The In-Line Post Filter or Activated Carbon Module is exhausted.

Replace Filters.

There is foreign matter in the Holding Tank.

Clean, flush and sanitize the system. Replace the filters.

The Product Water and Drain Water lines Correct plumbing. are reversed.

Dissolved gases in the Feed Water.

Pre-treat Feed Water to remove dissolved gases.

Increase in Product Water TDS.

See high TDS in the Product Water section.

Air Gap is blocked.

Clear air gap.

Rinse with vinegar for removal of calcium buildup.

Drain tubing is clogged.

Clear tubing.

Drain Clamp hole is misaligned.

Align with hole in the drain pipe.

Excessive drain flow rate.

Replace Drain Restrictor.

Leaks from base of the delivery tube.

O-ring is bad, replace O-ring.

Close the Feed Water Valve and relieve pressure before disconnecting any tubing or replacing any fitting. Before replacing a fitting, re-cut the tubing and re-insert into the fitting to see if that solves the leak. If pipe threads are leaking, remove and re-tape with Teflon tape.

®TEFLON is a registered trademark of Chemours 14

Warranty 35

W11292123B

®/TM ©2023 MAYTAG. All rights reserved. Manufactured under license by LeverEdge. Limited warranty provided by the manufacturer. 1423 Gunn Highway Odessa, FL 33556
Phone: (866) 910-8351 l maytagwater.com/maytag-m550

01/19 Rev. 04/2023

References

Maytag® M550 | Maytag

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