Whirlpool WHADUS5 Dual Stage Water Filtration System: Installation and Operation Manual

Product Overview

This manual guides you through the installation, operation, and maintenance of your Whirlpool Dual Stage Water Filtration System, Model WHADUS5. It is designed to improve the taste and odor of your drinking water by reducing various chemical contaminants.

For questions or concerns, contact Whirlpool toll-free at 1-866-986-3223 or visit whirlpoolwatersolutions.com. Please have your model number and date code ready when calling.

The system is tested and certified by NSF International against NSF/ANSI Standard 42 for the reduction of chlorine taste and odor, and Standard 53 for the reduction of cysts, lead, MTBE, and VOCs.

Manufactured and warranted by Water Channel Partners, 1890 Woodlane Drive, Woodbury, MN 55125.

Specifications & Performance Claims

SPECIFICATIONS
Supply Water Pressure Min. - Max.	30 - 100 psi (207 - 689 kPa)
Supply Water Temperature Min. - Max.	40 - 100 °F (4 - 38 °C)
Rated Service Flow	0.5 gallons per minute (1.89 liters per minute)
Filter Service Life	270 gallons (1,022 liters)
Inlet - Outlet	3/8" quick connect fittings

This system conforms to NSF/ANSI 42 and 53 for specific performance claims as verified by test data. The faucet indicator monitors filter life and will flash amber when it's time to replace the battery and filters.

PERFORMANCE CLAIMS

Contaminant	Required Influent Level (mg/L)	NSF Max. Permissible Effl. Level (mg/L)	Average Influent Level (mg/L)	Avg. / Max. Effluent Level (mg/L)	Avg. / Min. Percent Removal	EPA Max. Contaminant Level (mg/L)
Cyst	≥50,000 #/mL	99.95%	93,000 #/mL	<1 /<4 #/mL	99.99 / 99.99	None
Lead @ pH 6.5	0.15 ±10%	0.010	0.152	0.001 / 0.001	99.3 / 99.3	0.015
Lead @ pH 8.5	0.15 ±10%	0.010	0.150	0.001 / 0.001	99.3 / 99.3	0.015
Methyl tert-Butyl Ether (MTBE)	0.015 ±20%	0.005	0.01467	0.0005 / 0.0005	96.2 / 96.2	None
Chlorine Taste & Odor	2.0 ±10%	50%	2.0	0.05 / 0.08	97.5 / 96.2	None
Chloroform (VOC Reduction)	0.30 ±10%	95%	0.320	0.0005 / 0.0005	99.8 / 99.8	0.080

¹ Environmental Protection Agency maximum contaminant level. ² Milligrams per liter (PPM). ³ NSF minimum percent reduction requirement. ⁴ Particles per milliliter. ⁵ Microspheres used as surrogate. ⁶ EPA has not determined a maximum contaminant level. ⁷ Chloroform used as surrogate for Organic Chemicals Reduced by Chloroform Surrogate Testing.

ORGANIC CHEMICALS REDUCED BY CHLOROFORM SURROGATE TESTING

Contaminant	Average Influent (µg/L)	Maximum Effluent (µg/L)	Percent Removal	EPA MCL (µg/L)
Alachlor	50	1.0	>98	2.0
Atrazine	100	3.0	>97	3.0
Benzene	81	1.0	99	5.0
Carbofuran	190	1.0	>99	40
Carbon Tetrachloride	78	1.8	98	5.0
Chlorobenzene	77	1.0	99	100
Chloropicrin	15	0.2	99	NA
2,4-D	110	1.7	98	70
Dibromochloropropane (DBCP)	52	0.02	>99	0.2
o-Dichlorobenzene	80	1.0	99	600
p-Dichlorobenzene	40	1.0	98	75
1,2-Dichloroethane	88	4.8	95	5.0
1,1-Dichloroethylene	83	1.0	99	7.0
cis-1,2-Dichloroethylene	170	0.5	>99	70
trans-1,2-Dichloroethylene	86	1.0	99	100
1,2-Dichloropropane	80	1.0	99	5.0
cis-1,3-Dichloropropylene	79	1.0	99	NA
Dinoseb	170	0.2	99	7.0
Endrin	53	0.59	99	2.0
Ethylbenzene	88	1.0	99	700
Ethylene Dibromide (EDB)	44	0.02	>99	0.05
Haloacetonitriles (HAN):
Bromochloroacetonitrile	22	0.5	98	NA
Dibromoacetonitrile	24	0.6	98	NA
Dichloroacetonitrile	9.6	0.2	98	NA
Trichloroacetonitrile	15	0.3	98	NA
Haloketones (HK):
1,1-Dichloro-2-propanone	7.2	0.1	99	NA
1,1,1-Trichloro-2-propanone	8.2	0.3	96	NA
Heptachlor	25	0.013	>99	0.4
Heptachlor Epoxide	10.7	0.2	98	0.2
Hexachlorobutadiene	44	1.0	98	NA
Hexachlorocyclopentadiene	60	0.002	>99	50
Lindane	55	0.01	>99	0.2
Methoxychlor	50	0.1	>99	40
Pentachlorophenol	96	1.0	99	1.0
Simazine	120	4.0	97	4.0
Styrene	150	0.5	>99	100
1,1,2,2-Tetrachloroethane	81	1.0	99	NA
Tetrachloroethylene	81	1.0	99	5.0
Toluene	78	1.0	99	1,000
2,4,5-TP (Silvex)	270	1.6	99	50
Tribromoacetic Acid	42	1.0	98	NA
1,2,4-Trichlorobenzene	160	0.5	>99	70
1,1,1-Trichloroethane	84	4.6	95	200
1,1,2-Trichloroethane	150	0.5	>99	5.0
Trichloroethylene	180	1.0	>99	5.0
Trihalomethanes (incl.):
Chloroform (surrogate chemical)
Bromoform	300	15	95	80
Bromodichloromethane
Chlorodibromomethane
Xylenes (total)	70	1.0	99	10,000

¹ Influent challenge levels are average influent concentrations. ² Micrograms per liter (PPB). ³ Maximum product water level not observed. ⁴ Maximum product water level set at detection limit. ⁵ Chemical reduction percent and maximum product water level calculated at 95% breakthrough point. ⁶ Surrogate test results for Heptachlor Epoxide used for upper occurrence concentration calculation. ⁷ EPA maximum contaminant level.

Important Notice: Compare this data with your water treatment needs. Test your water supply if necessary. Do not use with microbiologically unsafe water without adequate disinfection. Actual performance may vary based on local water conditions.

Before You Start

Read all steps and guides carefully before installation and use.
Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection.
All plumbing must comply with local codes. Consult a licensed plumber if needed.
The system operates on water pressures between 30 psi and 100 psi. Install a pressure reducing valve if your house pressure exceeds the maximum.
Do not install the system outdoors or in extreme hot or cold temperatures. Water supply temperature must be between 40°F and 100°F. Do not install on hot water.

Dimensions

The water filtration unit has the following approximate dimensions: Height: 6-1/4 inches, Length: 11-1/4 inches, Width: 3-1/2 inches.

[Diagram showing the filter unit with dimensions labeled: 6-1/4" height, 11-1/4" length, 3-1/2" width.]

Parts of the System

Filter system assembly
Water supply fitting
Filtered water faucet (for sink or countertop mounting)
Color-coded 3/8" tubing
Filter change drip tray

Materials and Tools Needed

Slotted and Phillips screwdrivers
Pliers and adjustable jaw wrench
Tubing cutter
Electric drill and 1-1/4" drill bit (if mounting hole is needed for the faucet)

IMPORTANT: To avoid damaging sinks (porcelain, stainless steel, granite), consult a qualified plumber or installer for drilling procedures.

Typical Undersink Installation

Locate the water filter housing on the cold water supply pipe under the kitchen or bathroom sink.

[Diagram illustrating an undersink installation: A sink is shown with hot and cold water lines. A shutoff valve is on the cold line. A water supply fitting connects to the shutoff valve, with yellow tubing (WATER IN) going to the filter housing and blue tubing (WATER OUT) going to a filtered water faucet. A filter change drip tray is positioned below the housing.]

Installation Instructions

Step A - Install Cold Water Supply Fitting

Check and comply with local plumbing codes. Install the water supply fitting to ensure a leak-tight connection for the 3/8" tubing.

Included Water Supply Fitting:

Close the cold water shutoff valve and open a faucet to relieve pressure.
Disconnect the existing cold water line from the shutoff valve.
Ensure the gasket is inside the water supply fitting's female threaded portion.
Install the water supply fitting onto the cold water shutoff valve where the old line was removed. Hand tighten, avoiding cross-threading or overtightening.
Connect the existing cold water line to the male threaded portion of the fitting. Hand tighten, avoiding cross-threading or overtightening.

Optional Pipe Fittings (compression type shown):

Turn off water supply and open a faucet to drain. Install a fitting on the cold water pipe to adapt 3/8" OD tubing. Use pipe joint compound or thread sealing tape on threaded fittings.

[Diagram showing two water supply connection methods: Figure 3A illustrates the included fitting connecting to a shutoff valve with 3/8" tubing to the filter inlet. Figure 3B shows an optional compression fitting connection with insert and ferrule.]

Step B - Make Hole For Filtered Water Faucet

IMPORTANT: Consult a qualified plumber or installer for drilling procedures in porcelain, stainless steel, or granite to avoid damage.

Select a location for the faucet: an existing sink spray attachment hole, the sink top, or the countertop next to the sink. Ensure there is room underneath for connections.
If drilling is required, make a 1-1/4" diameter (minimum) hole for the faucet.

Step C - Install Faucet

Insert one end of the 3/8" blue tubing into the push-in fitting on the bottom of the faucet. Push tubing fully into the fitting (3/4" engagement).
Feed the 3/8" tubing through the mounting hole. Slide toggle bolts through the hole and tighten screws to secure the base. Do not overtighten.
Place the faucet onto the base and turn 1/4 clockwise to attach.
Install the battery in the faucet base (refer to "Battery Change" section).

[Diagram illustrating faucet installation: A faucet is shown with blue tubing. Below it, exploded view shows the faucet base, rubber washer, toggle bolt, and screw connecting to a hole in the sink or countertop.]

Step D - Make Tubing Connections

Measure and cut a length of 3/8" tubing to connect the supply fitting to the filter system inlet. Cut tubing ends square.
Insert tubing fully into the supply fitting and filter inlet fitting. Tug gently to ensure a secure connection.
Repeat steps 1 and 2 to connect tubing from the faucet to the filter system outlet.

Tubing Connection (Push-in Fittings):

Use a box cutter or knife to cut tubing ends square.
Inspect the cut end (approx. 1") for nicks, scratches, or rough spots. Recut if necessary.
Push tubing through the collet and fully into the fitting (3/4" engagement).

[Diagrams showing correct and incorrect tubing connections: Figure 5 illustrates tubing cut square and fully engaged (3/4"), contrasted with an incorrectly partially engaged tube. Figure 6 shows how to disconnect tubing by pressing the collet.]

Step E - Turn On Water, Check for Leaks and Rinse Carbon Fines

Open the shutoff valve(s) closed during installation.
Open the sink faucet and filtered water faucet to purge air. Once water runs smoothly without bubbles or spurting, close faucets and check for leaks.
Open the filtered water faucet and let water run for 10 minutes to rinse out carbon fines.

Filter Cartridges

Filter Cartridge Life

Taste and Odor Cartridges contain activated carbon. When new, flush the system by opening the filtered water faucet until fine carbon particles (fines) are no longer visible, or for approximately 10 minutes. It is recommended to replace the battery and filter cartridges every six months.

Cartridge life depends on water usage and the amount of sediment, taste, or odor in the water. You will know it's time to replace a cartridge when you notice the return of the unwanted substance in your water.

The Whirlpool WHADUS5 system with WHEEDF replacement element pack is rated for 270 gallons (1,022 liters) at a service flow of 0.5 gallons per minute.

Filter Cartridge Replacement

Turn filter cartridges counterclockwise to remove them from the manifold.
Dispose of used cartridges properly.
Install new cartridges by turning them clockwise onto the manifold.
Replace the timer battery (see "Battery Change" section).

[Diagram showing filter cartridges being turned counterclockwise to remove and clockwise to attach to the manifold.]

Faucet Electronics

Faucet Timer

The faucet base contains a battery-operated 6-month timer. An amber LED indicator on the faucet base flashes continuously after 6 months, signaling the need to replace the battery and filters.

Battery Change

Loosen the screw on the right side of the faucet base.
Press the battery housing upwards from the base until it releases.
Replace the battery (CR 2032 or equivalent), ensuring the positive (+) side faces the back of the holder.
Upon first replacement, the light flashes six times, indicating a full charge and the start of the 6-month cycle. Repeated two-time flashes indicate a weak battery.
Re-install the battery housing and tighten the mounting screw.

[Diagram showing the battery housing, battery (with negative side facing front), and screw.]

Troubleshooting the System

Problem: Taste and/or Odor

Cause: Pre & Post filter expended. Correction: Replace filter cartridges.
Cause: System contaminated. Correction: Sanitize system. Call 1-866-986-3223 for instructions.

Problem: Faucet LED indicator light does not function after battery change

Cause: Battery dead. Correction: Replace with new battery.
Cause: Battery installed incorrectly. Correction: Install battery correctly.

Problem: Water leaks at push connect fittings

Cause: Tubing not pushed in all the way. Correction: Push tubing fully into fittings.
Cause: Tubing not cut square. Correction: Cut tubing square.
Cause: Tubing nicked. Correction: Remove nicked portion and reinsert tubing.
Cause: Outer tubing surface not smooth. Correction: Remove rough portion and reinsert tubing.

Need help troubleshooting? Call Toll Free 1-866-986-3223 or visit whirlpoolwatersolutions.com.

Parts List

Key No.	Part No.	Description
1	7292674	Faucet, with base & electronics
2	119-8600088	Water Supply Fitting, 3/8" Q.C.
3	1128-03-HD	Repl. Cabinet (incl. Key Nos. 3 & 4)
		Cabinet, Left
4		Cabinet, Right
5	1128-03-HB	Manifold Assembly (includes Key Nos. 3-5)
6	WHEEDF	Repl. Filter Cartridge (2 pack) ★
	7168435	Tubing, 3/8" x 72" long, White
	7387356	Owner's Manual

★ Please purchase replacement cartridges from the retailer where you bought your water filtration system.

To order repair parts, call toll-free 1-866-986-3223.