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SAFETY INFORMATION
Read, understand, and follow all safety information contained in these instructions prior to installation and use of the NWS Series Water Softener. Retain these
instructions for future reference. Failure to follow installation, operation and maintenance instructions may result in property damage and will void warranty.
Intended use:
The NWS Series Water Softener is intended for use in softening water in homes and has not been evaluated for other uses. The system must be installed
indoors near the point of entry of a home water line, and be installed by qualifi ed professional installers according to these installation instructions.
EXPLANATION OF SIGNAL WORD CONSEQUENCES
WARNING
Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury and/or property damage.
CAUTION
Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury and/or property damage.
CAUTION
Indicates a potentially hazardous situation, which, if not avoided, may result in property damage.
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.
To reduce the risk of physical injury:
• Shut off inlet water supply and depressurize system as shown in manual prior to service.
To reduce the risk associated with a hazardous voltage:
• If the home electrical system requires use of the cold water system as an electrical safety ground, a jumper must be used to ensure a suffi cient ground connection across
the fi lter installation piping — refer installation to qualifi ed personnel.
• Do not use the system if the power cord is damaged — contact qualifi ed service personnel for repair.
To reduce the risk associated with back strain due to the heavy weight of the various system components:
• Follow safe lifting procedures.
CAUTION
To reduce the risk associated skin, eye, and respiratory tract irritation from gravel and fi lter media during installation:
• Gravel and several types of fi lter media may be used in this product, depending upon the application. During installation, dust may cause irritation to skin, eyes, and
respiratory tract.
• Utilize a NIOSH-approved dust fi lter mask, protective gloves, and appropriate eye protection when handling and pouring gravel and fi lter media.
• To request an MSDS relating to this product call 203-238-8965 or visit the web at http://solutions.3M.com/WPS/Portal/3M/EN_US/MSDS (click MSDS search). For
emergencies, call 800-364-3577 or 651-737-6501 (24 hours).
CAUTION
To reduce the risk associated with property damage due to water leakage:
• Read and follow Use instructions before installation and use of this water treatment system.
• Installation and use MUST comply with existing state or local plumbing codes.
• Protect from freezing, relieve pressure and drain system when temperatures are expected to drop below 33°F (0.6°C).
• Do not install on hot water supply lines. The maximum operating water temperature of this fi lter system is 110°F (43.3°C).
• Do not install if water pressure exceeds 100 psi. 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 profes-
sional if you are uncertain how to check for this condition.
• Where a backfl ow prevention device is installed on a water system, a device for controlling pressure due to thermal expansion must be installed.
• Do not use a torch or other high temperature sources near fi lter system, cartridges, plastic fi ttings or plastic plumbing.
• On plastic fi ttings, never use pipe sealant or pipe dope. Use PTFE thread tape only, pipe dope properties may deteriorate plastic.
• Take care when using pliers or pipe wrenches to tighten plastic fi ttings, as damage may occur if over tightening occurs.
• Do not install in direct sunlight or outdoors.
• Mount system in such a position as to prevent it from being struck by other items used in the area of installation.
• Ensure all tubing and fi ttings are secure and free of leaks.
• SHUT OFF FUEL OR ELECTRIC POWER SUPPLY TO WATER HEATER after water is shut off.
• Do not install system where water lines could be subjected to vacuum conditions without appropriate measures for vacuum prevention.
• Do not apply heat to any fi tting connected to bypass or control valve as damage may result to internal parts or connecting adapters.
• Install on a fl at/level surface. It is also advisable to sweep the fl oor to eliminate objects that could pierce the brine tank.
To reduce the risk associated with property damage due to plugged water lines:
• Pay particular attention to correct orientation of control valve. Water fl ow should match arrow on control valve. The Inlet and Outlet of other water treatment
equipment products will vary depending on the control valve brand used.
IMPORTANT NOTES
• Failure to follow instructions will void warranty.