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Certifications And Testing - Maytag MWF4100AWS Operation And Maintenance Manual

Whole home water filtration system
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Bypass Procedure
1. Close the Inlet and Outlet ball valves (turn handles clockwise). Ball valves are in the
closed position when the handle is positioned perpendicular to the water pipe. (See
Photo 2a and 2b on previous page.)
2. Open Bypass Valve (turn handle counter-clockwise).
3. Unplug controller.
4. To return to filtered water service, in the order listed;
• close bypass valve (turn handle clockwise)
• open inlet and outlet ball valves (turn handles counter-clockwise)
• plug in controller

Certifications and Testing

NSF (National Sanitation Foundation) Testing and Certification
NSF International is the world's leading testing and certification laboratory for water
treatment products.
Models MWF4200AWS and MWF4300AWS:
System Tested and Certified by NSF International
against NSF/ANSI 42 and 53 for:
•Cyst Reduction
•Turbidity Reduction
•Particulate Reduction - Class 1
MAYTAG Whole Home Water Filtration System Owners Manual MA1-5
November 2003
7

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Mwf4200awsMwf4300aws