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Failure to install or operate your filter system in accordance with these use instructions or any 

other installation or use instructions accompanying this product may result in product failure and 

property damage, including water leakage and will void warranty.

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

  • 

Read and follow

 allInstructions before installation and use of this system.

  •  Installation and Use 

MUST

 comply with all state and local plumbing codes.

  • 

Protect from freezing

, remove filter cartridge 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 100 psi (689 kPa).  If your water pressure exceeds 80 psi, 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 

expansion must be installed.  Contact a plumbing professional if you are uncertain how to select/install/maintain a 

thermal expansion device.

  • Where a booster pump is installed on a water system, you must maintain and inspect the attached pressure switch 

regularly in accordance with the booster pump manufacturer’s instructions.  Contact a plumbing professional if you 

are uncertain how to maintain your booster pump system.

  • Where a booster pump is installed on a water system, you must install an appropriate pressure relief valve.  Pres

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sure relief valve must be maintained and inspected every 6 months.  Contact a plumbing professional if you are 

uncertain how select/install/maintain a pressure relief valve.

  • 

Do not

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

  • 

Do not

 install system where water lines could be subjected to vacuum conditions without appropriate measures for 

vacuum prevention.

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

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riorate plastic.

  •  Take care when using pliers or pipe wrenches to tighten plastic fittings, as damage may occur if over tightening occurs.
  • 

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.
  •  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 any fitting if collet is missing. Contact 3M if collets are missing from any fittings.

To reduce the risk of water leakage or flooding, and to ensure optimal filter performance:

  • Change the disposable filter cartridge every 12 months or sooner if you observe a noticeable reduction in water flow rate.
  • Change the disposable filter membrane every 36 months or sooner if you observe a noticeable reduction in mem

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brane production rate.

  • Failure to replace the disposable filter cartridges & membrane at recommended intervals may lead to reduced filter 

performance and cracks in the filter housing, causing water leakage or flooding.

  • For questions or concerns, please contact Customer Service at 1-855-3M-WATER.

NOTICE

Summary of Contents for 3MRO401

Page 1: ...dration Hot and cold beverages Cooking and food preparation Pet hydration Aquatic aquariums Optimized For Reduction Of Select Volatile Organic Compounds VOCs System tested and certified by NSF Interna...

Page 2: ...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...

Page 3: ...system Where a booster pump is installed on a water system you must install an appropriate pressure relief valve Pres sure relief valve must be maintained and inspected every 6 months Contact a plumbi...

Page 4: ...ing location 5 D Make the faucet mounting hole 5 E Mount the faucet 6 F Prepare the system for installation 6 G Install the feed water connection and tubing 7 H Prefill and sanitize the storage tank 7...

Page 5: ...nothing will interfere with mounting the faucet such as reinforcing ribs support brackets or the cabinet construction If drilling a hole in your sink is required the professional installer should foll...

Page 6: ...Gap is provided by hole 1 above faucet base 1 Familiarize yourself with all of the components shown in the air gap faucet diagram See Fig 2 2 Slide the chrome base plate and rubber washer up the thre...

Page 7: ...y and the tank valve Disconnect the orange and yellow tube from the union connector setting the tank aside while proceeding with the rest of the installation the sanitizing solution should be kept in...

Page 8: ...ween the sink basins for ease of access if space permits K MAKE THE TUBING CONNECTIONS With all of the components in place the tubing connections can be made When routing the tubing between the compon...

Page 9: ...The drain line has a loop in it Air is locked in the air gap outlet There is excessive RO reject flow Solutions Check to see that the drain line is clear of any obstruction and remove the drain saddle...

Page 10: ...ed valve Wait five 5 minutes for the filtration assembly to completely depressurize 2 Remove cover 3 Twist the existing filter 1 4 turn to the left so that the ears on the filter are able to disengage...

Page 11: ...ly and are not designed to sanitize systems that have become highly contaminated from misuse When to Sanitize the Storage Tank Upon start up as described in the beginning of this manual After any serv...

Page 12: ...tion Inc will replace the Product or refund your Product purchase price This warranty does not cover labor The remedy stated in this paragraph is Customer s sole remedy and 3M Purification Inc s exclu...

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