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SAFETY INFORMATION

IMPORTANT NOTES

Please read and follow all safety information contained in these instructions prior to installation  
and use of the 3MDW301 Advanced Drinking Water System. Retain these instructions for future 
reference.
Intended use:

The 3MDW301 Advanced Drinking Water System is intended for use in filtering potable water in homes and has 
not been evaluated for other uses.  The system is installed at the point of use and typically installed under a 
sink.  System must be installed as specified in the installation instructions by a qualified professional.

EXPLANATION OF SIGNAL WORD CONSEQUENCES

CAUTION

CAUTION

WARNING

  •  Failure to follow instructions will void warranty.

  •  Allow a minimum of 3” (7.6 cm) clear space under filter to facilitate filter change.

  •  Install with the inlet and outlet ports as labeled.  Make sure not to reverse connections.

Indicates a potentially hazardous situation, which, if not avoided, could result in 
death or serious injury and/or property damage.
Indicates a potentially hazardous situation, which, if not avoided, may result in minor 
or moderate injury and/or property damage.
Indicates a potentially hazardous situation, which, if not avoided, may result in 
property damage.

2

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.  Systems certified for cyst reduction may be used on disinfected water that may contain filterable cysts.  EPA 
Establishment #070595-CT-001.

To reduce the risk associated with a hazardous voltage due to an installer drilling through existing electric wiring or 

water pipes in the area of installation:

  • 

Do not

 install near electric wiring or piping which may be in the path of a drilling tool when selecting the position to mount 

the filter bracket.

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 and use 

MUST

 comply with all state and local plumbing codes.

  • 

Protect filter from freezing

, remove replacement filter when temperatures are expected to drop below 40°F (4.4°C).

  • 

Do not

 install systems in areas where ambient temperatures may go above 110°F (43.3°C).

  • 

Do not install on hot water supply lines.

  The maximum operating water temperature of this filter system is 100°F (37.8°C).

  • 

Do not install

 if water pressure exceeds 125 psi (862 kPa).  If your water pressure exceeds 80 psi (552 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 backflow prevention device is installed on a water system, a device for controlling pressure due to thermal expan-

sion must be installed.

  • 

Do not

 use a torch or other high temperature sources near filter system, cartridges, plastic fittings or  

plastic plumbing.

  •  On plastic fittings, never use pipe sealant or pipe dope.  Use PTFE thread tape 

only

, pipe dope properties may deteriorate plastic.

  • 

Do not

 install in direct sunlight or outdoors.

  • 

Do not

 install near water pipes which will be in path of a drilling tool when selecting the position to mount the bracket;

  •  Mount filter in such a position as to prevent it from being struck by other items used in the area of installation (waste baskets, etc.);
  •  Ensure that the location and fasteners will support the weight of the system when installed and full of water.
  •  Ensure all tubing and fittings are secure and free of leaks.
  •  Do not install unit if collet is missing. Contact 3M if collets are missing from any fittings.
  •  The disposable replacement filter 

MUST

 be replaced every 12 months, at the rated capacity or sooner if a noticeable 

reduction in flow rate occurs.

CAUTION

To reduce the risk of eye injury while drilling countertop for faucet installations:

  • 

Safety glasses 

MUST

 be worn during the sink hole drilling operations.

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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