Table of Contents PAGE Safety Guide Proper Installation Unpacking / Inspection Specification Before Starting Installation General Installation Installation Instructions Start Up Instructions Programming About The Water Softener System System Configuration Maintenance Sanitize Procedure Valve Powerhead Assembly Valve Body Assembly Trouble Shooting Warranty Safety Guide For your safety, the information in this manual must be followed to minimize the risk of...
Be sure to check the entire softener for any shipping damage or parts loss. Also note dam- age to the shipping cartons. Contact US Water Systems within 24 hours for all damage and loss claims. The manufacturer is not responsible for damages in transit.
or other unusual substances, pre-treatment must be added to remove these contami- nants before the US Water Systems Flex Series Softener Systems. Iron In Your Water Supply (Problem Water) Ferrous Iron (sometimes called clear water or dissolved iron) can be removed with a wa- ...
Before Starting Installation Tools, Pipe, and Fittings, Other Materials Pliers Some codes may also allow PVC plastic Screwdriver pipe. Teflon tape ALWAYS install the included bypass valve, Razor knife or 3 shut-off valves. Bypass valves let you ...
General Installation Typical Softener Location You must first decide how to run in and out pipes to the softener. Look at the house main water pipe at the point where you will connect the softener. Is the pipe soldered copper, glued plastic, PEX, or threaded brass/galvanized? What is the pipe size? Now look at the typical installation illustrations below.
Installation Instructions 1. If your hot water tank is electric, turn off the power to it to avoid damage to the element in the tank. 2. If you have a private well, turn the power off to the pump and then shut off the main wa- ter shut off valve.
Page 8
Select the connectors that make the plumbing easiest. The Flex water softener is shipped with both straight and elbow connections. Apply a layer of food grade silicon grease to the connector o-rings. There is a small amount supplied with the unit that should enough for both connectors.
Page 9
Now connect the supplied flexible connector to the water softener. Now connect the flexible connector to your plumbing system. Be sure the in and out connections are correct. The flexible connectore will fit 3/4" CPVC, CTS copper or PEX.
Page 10
Installation Instructions (Continued) 5. Connect the drain hose (10 ft included) to the valve and secure it with a hose clamp (also included). Run the drain hose to the nearest laundry tub or drain pipe. This can be ran up overhead or down along the floor. If running the drain line more than 20 ft overhead, it is recommended to increase the hose size to 3/4”.
Page 11
6. Using the Allen Key (included), place the unit in the bypass position. Slowly turn on the main water supply. At the nearest cold treated water tap nearby remove the faucet screen, open the faucet and let water run a few minutes or until the system is free of any air or foreign material resulting from the plumbing work.
Page 12
8. Open the cabinet salt lid and add water until there is approximately 3" (75 mm) of water (5 gallons) in the cabinet tank. Add at least one bag of salt to the salt tank. 9. Proceed to start up instructions. Note: The unit is not ready for service until you complete the start-up instruc- tions.
Start-Up Instructions Slowly open the inlet valve on the bypass about 1/4 turn. Let the water fill the softener until the flow stops. 2. Now open a laundry sink or garden spigot down stream. Now slowly open the outlet on the bypass valve about 1/4 turn.
System Initialization When power is first supplied, the valve may take up to two minutes to initialize the valve. During this time the valve will show “INTIALIZING WAIT PLEASE”. Do not touch any but- tons at this time. One beep signals the valve has reached the service position. it will dis- play the current date and time.
Setting Vacation Mode 1. Press DOWN to advance to VACATION MODE. 2. Press the SET/REGEN to change the value. Press UP OR DOWN to change the values. Vacation mode is only used when home is left un-occupied for lengthy amounts of time and the owner wishes to have a periodic flush of the softener system.
Automatic Hard Water Bypass During Regeneration For emergency needs, hard water is available to the home during the regeneration cycles. However, you should avoid using HOT water because the water heater will refill with the hard water. System Configuration Valve Set-up VALVE SETTINGS (MINUTES) MUNICIPAL WATER (HIGH EFFICIENCY) MUNICIPAL WATER (HIGH CAPACITY)
Page 17
Automatic Bypass The regeneration cycle can last 30 to 80 minutes, after which soft water service will be re- stored. During regeneration, hard water is automatically bypassed for use in the household. Hot water should be used as little as possible during this time to prevent hard water from filling the water heater.
Maintenance Adding Salt Use only crystal water softener salt. Check the salt level monthly. It is important to main- tain the salt level above the water level. To add salt, simply lift the salt lid and add the salt directly into the brine tank. Be sure the brine well cover is on and fill only to the height of the brine well.
Page 19
Cleaning Injector Assembly Sediment, salt and silt will restrict or clog the injector. A clean water supply and pure salt will prevent this from happening. The injector assembly is located on the right side of the control valve. This assembly is easy to clean.
Sanitizing Procedure Care is taken at the factory to keep your water softener clean and sanitary. Materials used to make the softener will not infect or contaminate your water supply, and will not cause bacteria to form or grow. However, during shipping, storage, installing and operating, bac- teria could get into the softener.
Page 24
Valve Body Assembly Parts List Item No. Part No. Part Description Quantity 05056087 Screw-M5×12(Hexagon) 05056088 Screw-M5×16(Hexagon with Washer) 05056047 End Plug Retainer 05030002 Bnt85 Piston Rod 05056097 Piston Pin 05056023 End Plug 05056070 Quad Ring 05056024 End Plug Washer 05056022 Piston Retainer 05056181 Piston (Electrical)
Page 25
Valve Body Assembly Parts List (Continued) 05056033 BLFC Ferrule 05056108 BLFC Fitting Nut 05056177 Injector Body 05056075 Injector Seat 05056134 O-Ring-φ12×2 05056054 Injector Stem 05056031 Injector Spacer 05056081 O-Ring-φ12.5×1.8 05056030 Injector Cap 05056093 Injector Screen 05010049 Special Washer 05056105 Retaining Ring 05056172 Secure Clip-S 05010082...
Trouble Shooting Issue Possible Cause Possible Solution A. Unit fails to initiate a 1. No power supply. Check electrical service, fuse, etc. regeneration cycle. 2. Defective circuit board. Replace faulty parts. 3. Power failure. Reset time of day. 4. Defective meter. Replace turbine meter.
Need help?
Do you have a question about the Flex ECS-20 and is the answer not in the manual?
Questions and answers