Rheem RHS42 Installation And Operation Manual

Demand controlled water softener

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Table Of Contents

Model RHS42

How to install, operate

and maintain your Demand

Controlled Water Softener

PRODUCT AND WARRANTY

REGISTRATION

online to validate and

extend your warranty.

See warranty page for

details.

www.rheemwatertreatment.com

If you have any questions or concerns when

installing, operating or maintaining your water

softener, call our toll free number:

1-800-754-7027

www.rheemwatertreatment.com

or visit

When you call, please be prepared to provide

the model and serial number of your product,

found on the rating decal inside the salt lid.

System tested and certified by NSF International

against NSF/ANSI Standard 44

for hardness reduction, efficiency and the

reduction of barium and radium 226/228,

and certified to NSF/ANSI Standard 372.

Manufactured and warranted by

Water Channel Partners

1890 Woodlane Drive

Woodbury, MN 55125

7386473 (Rev. A 11/10/20)

Table of Contents

Summary of Contents for Rheem RHS42

Page 1 Model RHS42 How to install, operate and maintain your Demand Controlled Water Softener PRODUCT AND WARRANTY REGISTRATION Register your product online to validate and extend your warranty. See warranty page for details. www.rheemwatertreatment.com If you have any questions or concerns when...
Page 2: Table Of Contents
TABLE OF CONTENTS Page Specifications & Performance Claims ............3 Before You Start .
Page 3: Specifications & Performance Claims
Operational efficiency is the actual efficiency after the system has been installed. It is typically less than the rated efficiency, due to individual application factors including water hardness, water usage, and other contaminants that reduce a softener's capacity. Model RHS42 Model Code rH42 12,400 @ 2.5 lbs.
Page 4: Before You Start
Before You Start = The water softener requires a minimum water flow of 3 gallons per minute at the inlet. Maximum allowable inlet water pressure is 125 psi. If daytime pressure is over 80 psi, nighttime pressure may exceed the maximum. Use a pressure reducing valve if necessary (Adding a pressure reducing valve may reduce the flow).
Page 5: Inspect Shipment
Inspect Shipment The parts required to assemble and install the water Remove and discard (or recycle) all packing materials. softener are included with the unit. Thoroughly check To avoid loss of small parts, we suggest you keep the the water softener for possible shipping damage and small parts in the parts bag until you are ready to use parts loss.
Page 6: Installation Requirements
Installation Requirements LOCATION REQUIREMENTS PLUMBING CODES Consider all of the following when selecting an installa- All plumbing must be completed in accordance with tion location for the water softener. national, state and local plumbing codes. = Do not locate the water softener where freezing temperatures occur.
Page 7 Installation Requirements VALVE DRAIN REQUIREMENTS 1/4” NPT Thread Barbs for 3/8” Using the flexible drain hose (included), measure and I.D. Tubing cut to the length needed. Flexible drain hose is not Hose Clamp allowed in all localities (check your plumbing codes). If local codes do not allow use of a flexible drain hose, a Drain Hose rigid valve drain run must be used.
Page 8: Installation Instructions
The weight of the tank, when full of ASSEMBLY water and salt, may cause the tank to fracture at the shim. 1. Rheem models are factory assembled. During ® installation, unsnap and remove the top cover, continued on next page together with the salt lid, to expose the softener valve assembly.
Page 9 Installation Instructions continued from previous page Top Cover Nozzle & Venturi 2. Visually check and remove any debris from the Assembly water softener valve inlet and outlet ports. Salt Lid 3. Make sure the turbine assembly spins freely in the "out"...
Page 10 Installation Instructions COLD WATER PIPE GROUNDING INSTALL SALT STORAGE TANK OVERFLOW HOSE CAUTION: The house cold water pipe (metal only) is often used as a ground for the house 1. Measure, cut to needed length and connect the 3/8” electrical system, The 3-valve bypass drain line (provided) to the salt storage tank overflow type of installation, shown in Figure 8, elbow and secure in place with a hose clamp.
Page 11 Installation Instructions SANITIZE THE WATER SOFTENER / SANITIZE AFTER SERVICE Care is taken at the factory to keep your unit clean and If removing sanitary. Materials used to make the unit will not infect clips... or contaminate your water supply, and will not cause bacteria to form or grow.
Page 12: Programming The Water Softener
FIG. 17 NOTE: Press buttons and quickly release to slowly advance the display. Hold the buttons down This is a reminder to use Rheem RHWSC Water for fast advance. ® Softener Cleaner (P/N RHWSC21) three times a 2.
Page 13 Programming the Water Softener STEP 2. SET WATER HARDNESS NUMBER 2. When the desired recharge start time is displayed, press the SELECT button, and the display will If you completed the previous step, the word “HARD - change to show one of the salt type screens in NESS"...
Page 14: Controller Features
Controller Features EXTRA RECHARGE SALT MONITOR SYSTEM Sometimes, a manually initiated recharge (regenera- The water softener has a status light to remind you to tion) may be desired, or needed. Two examples are: add salt to the storage tank. You have used more water than usual (guests visit- NOTE: You must set salt level each time salt is added to the water softener.
Page 15 However, you can ad just this time from 1 to 15 minutes in length. To change this cycle time, use California Efficiency Requirement UP button to increase the time, or the Your Rheem Water Softener has a “High DOWN button to shorten the time. If no change is ®...
Page 16 Controller Features 4. Press SELECT again to display the “Recharge 6. Press SELECT again to display the backwash time Days” screen. “Add” screen. FIG. 34 Default Display Example: Set to 4 days maxi mum between regenerations BACKWASH & FAST RINSE TIMES: If you expe- rience salty tasting water after recharge, you may FIG.
Page 17 Controller Features TANK LIGHT PROGRAM MEMORY To turn on the light inside the salt storage tank, press If electrical power to the softener goes off, the time the TANK LIGHT button on the faceplate. Press this display is blank but the electronic controller keeps the button again to turn the light off.
Page 18: Bypass Blending Valve
Bypass Blending Valve SERVICE POSITION The bypass blending valve works as a typical push- (Normal Softener Operation) pull bypass valve, but has the added ability to finely adjust hardness of the treated water leaving the water softener. If slightly harder water is desired than is Soft Water normally output by the water softener, this bypass Hard...
Page 19: Routine Maintenance
Routine Maintenance ADDING SALT BREAKING A SALT BRIDGE Sometimes, a hard crust or salt “bridge” forms in the Lift the salt lid and check the salt storage level fre- brine tank. It is usually caused by high humidity or quently. If the water softener uses all the salts before you refill it, you will experience hard water.
Page 20 Routine Maintenance CLEANING THE NOZZLE & VENTURI PROTECT THE WATER SOFTENER FROM FREEZING A clean nozzle & venturi (See Figure 44) is a necessity for the water softener to work properly. This small If the softener is installed where it could freeze (sum- component creates the suction to move brine from the mer cabin, lake home, etc.), you must drain all water brine tank, into the resin tank.
Page 21 Troubleshooting Guide PROBLEM CAUSE CORRECTION 1. No salt in the storage tank. Refill with salt and then use RECHARGE NOW feature. No soft water 1. Power supply unplugged at wall outlet, or Check for loss of power and correct. Reset electronic No soft water &...
Page 22: Troubleshooting
Troubleshooting MANUALLY INITIATED ELECTRONIC DIAGNOSTICS Motor 1. To enter diagnostics, press the SELECT button and hold for three seconds. The display will change to show turbine count, valve cycle position, and posi- tion switch status (open or closed). Sensor Position Housing Switch Turbine Count...
Page 23 Troubleshooting MANUAL ADVANCE RECHARGE CHECK Position Markers (valve in service) This check verifies proper operation of the valve motor, brine tank fill, brine draw, recharge flow rates, and other controller functions. Always make the initial checks first, and perform the manually initiated elec- tronic diagnostics.
Page 24: Exploded View & Parts List
Softener Exploded View Softener Exploded View Valve Assembly See Pages 26 & 27 for parts...
Page 25 0502272 Resin, 1 cu. ft. Overflow Hose Adaptor Kit – 7331258 7384659 Repl. Brine Tank (order badge below) (includes Key Nos. 26-28) 7386538 Badge, Rheem Adaptor Elbow 7384641 Grommet 7384633 Support, Faceplate Hose Clamp Repl. Electronic Control Board (PWA), 7310202 Repl.
Page 26 Valve Exploded View Wear Strip Seal Cross-section View...
Page 27 Valve Parts List Part No. Description Part No. Description Motor, Cam & Gear Kit, 1” 7386986 Bypass Blending Valve Assembly, 1” – 7384691 (includes Key Nos. 100-102) Turbine & Support Assembly, Motor – 7290931 including 2 O-Rings (See Key No. 123) &...
Page 28: Warranty
The factory warranty for your water softener is shown below. The one year full warranty period on parts and labor can be extended to five (5) years from the date of purchase if you use Rheem RHWSC Water Softener Cleaner on your sys- ®...

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Rheem RHS42 Installation And Operation Manual

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