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For Use With Cold Water Only.

NOTE: Remove items from under the sink. Place catch basin there to collect small amounts of water that may run out 

when disconnecting water supply lines.

1.  Open faucet and turn off cold water supply to relieve pressure. 

 

Install (2) quick connect fittings into head assembly using PTFE thread tape only.

2.   Place a basin or a towel under the cold water supply valve.  Remove cold side 

riser tubing connection at cold water supply valve.  Install feedwater adapter to 

the cold water supply valve and reconnect the riser tubing.

3.  Select and mark a location under the sink that allows access for filter change.

4.  Using filter head assembly as a guide, mark hole locations so that there is 

1 1/2” between the screws (see Figure 2), from center of each screw. 

 

Install screws and washers halfway, so you can easily slip the bracket to wall 

before firmly setting screws.  

NOTE:

 If you are mounting onto sheetrock or 

drywall, use anchors or screws (not included).

 

 

When installed, the bottom of the filter should have a  

minimum clearance of 3” from sink cabinet floor to  

facilitate replacement filter change.  

 

Fasten filter head assembly to wall with Phillips head mounting 

screws supplied. 

5.  Cut tubing straight with a razor knife.  

(See Figure 3). 

 

Determine length of tubing required from filter head assem-

bly to feedwater adapter and from the filter head assembly to 

the mounted Performance Indicator Device (PID) by holding 

tubing in place ensuring it is of appropriate length. Do not kink tubing as this will impede water flow. If necessary, 

loop tubing around to avoid it being kinked.  (Refer to typical installation example found on Page 3).  Install and 

mount PID per PID mounting instructions on page 6, ensuring that the tubing from the bottom of the faucet can 

reach the outlet fitting of the PID.

 

Connect 1/4” tubing from feedwater adapter to inlet side of filter head. (See “Using Push-In Fittings”)

 

You may choose to install the optional Quick Connect 1/4” Ball Valve (included) in the line between the feedwater 

adapter and the filter assembly.   

Correct

Incorrect

Figure 3

Collet

Backstop

“Using Push-In Fittings”

To Attach Tubing

(1)  Push tubing in as far as it will go. 
(2)  Tubing must be inserted past o-ring and hit backstop.  

 

Pull tube to ensure it is secured.

To Release Tubing

(3)  Push in collet to release tubing.  

(4)  With collet held, pull tubing straight out.

IMPORTANT INSTALLATION INSTRUCTIONS

To reduce the risk associated with property damage due to water leakage:

  •  Ensure all tubing and fittings are secure and free of leaks.

5

CAUTION

Figure 2

Summary of Contents for 3MDW301

Page 1: ...Homeowner Please retain for operation and future maintenance instructions Installation and Operating Instructions For 3MDW301 Advanced Drinking Water System 3M Clean Water Solutions...

Page 2: ...risk associated with property damage due to water leakage Read and follow Use Instructions before installation and use of this system Installation and use MUST comply with all state and local plumbing...

Page 3: ...FE tape Drinking water faucet Standard and designer faucet options are available at www 3MCleanerWorld com GETTING STARTED Typical Installation Example Drinking Water Faucet Not Included 1 4 Feedwater...

Page 4: ...T INSTALLATION Metal Bezel Rubber Washer 1 Metal Bezel Rubber Washer Countertop 2 Metal Bezel Rubber Washer Countertop Plastic Backing Spacer Star Washer Hex Nut 3 Metal Bezel Rubber Washer Countertop...

Page 5: ...ting screws supplied 5 Cut tubing straight with a razor knife See Figure 3 Determine length of tubing required from filter head assem bly to feedwater adapter and from the filter head assembly to the...

Page 6: ...ube from head is a filter vent tube outlet DO NOT remove kink or obstruct white tube Push In Push In Figure 4 IMPORTANT INSTALLATION INSTRUCTIONS CONTINUED 6 1 Install batteries included Remove the ba...

Page 7: ...PLACEMENT INSTRUCTIONS CAUTION To reduce the risk associated with property damage due to water leakage The disposable filter cartridge MUST be replaced every 12 months at the rated capacity or sooner...

Page 8: ...r cartridge and membrane which are warranted for one 1 year This warranty does not cover failures resulting from abuse misuse alteration or damage not caused by 3M or failure to follow installation an...

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