EcoWater ECR3700R20 Owner's Manual

3700 series, 3702 series water conditioner/refiner

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Owner's manual (56 pages)

Table Of Contents

OWNER'S MANUAL

How to operate your EcoWater Systems

Systems tested and certified by NSF International

against NSF/ANSI Standard 44 for hardness reduction

and efficiency and the reduction of barium and radium

226/228, and certified to NSF/ANSI Standard 372.

ERR3700R20, ERR3702R30 & ERR3702R50 are

tested and certified by NSF International against

NSF/ANSI Standard 42 for chlorine taste and odor.

Systems tested and certified by

the Water Quality Association against CSA B483.1.

Ù Model ERRC3702R50 has not been tested or certified

by NSF International or the Water Quality Association.

Designed, Engineered &

Assembled in the U.S.A.

Water Conditioner/Refiner

Chloramine & Chlorine Conditioner (ERRC)

EcoWater Systems LLC

P.O. Box 64420, St. Paul, MN 55164-0420

www.ecowater.com

SERIES 3700 & 3702

HydroLink

& HydroLink Plus

Conditioners (ECR)

Refiners (ERR)

7365150 (Rev. E 11/3/17)

Table of Contents

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Do you have a question about the ECR3700R20 and is the answer not in the manual?

Questions and answers

dennis bragg

April 20, 2025

add salt light is on but salt tank id full

1 comments:

Mr. Anderson

May 10, 2025

The salt light on the EcoWater ECR3700R20 may be on even when the salt tank is full due to a salt bridge—a hard crust that forms in the brine tank, creating an empty space between the salt and the water. This can prevent the sensor from detecting the actual salt level.

This answer is automatically generated

Michelle Marie Hall

June 5, 2025

do i need to turn off my system when I leave for a few months

Summary of Contents for EcoWater ECR3700R20

Page 1 OWNER’S MANUAL How to operate your EcoWater Systems Water Conditioner/Refiner SERIES 3700 & 3702 HydroLink & HydroLink Plus ® ® Conditioners (ECR) Refiners (ERR) Chloramine & Chlorine Conditioner (ERRC) Ù Systems tested and certified by NSF International against NSF/ANSI Standard 44 for hardness reduction and efficiency and the reduction of barium and radium 226/228, and certified to NSF/ANSI Standard 372.
Page 2: Table Of Contents
Consult the dealer or an experienced radio/TV tech- nician for help. Use care when handling the EcoWater Systems condi- Changes or modifications not expressly approved by tioner/refiner. Do not turn upside down, drop, or set on sharp protrusions.
Page 3: Warranty
Should you need service, your local, independent EcoWater Dealer is only a phone call away. PHONE:____________________________________________________________ To obtain warranty service, notice must be given, within thirty (30) days of the discovery of the defect, to your local EcoWater Systems dealer.
Page 4: Guarantee
Satisfied customers are our most valuable asset, and EcoWater has been dedicated to the manufacture of the highest quality water conditioning equipment and to the satisfaction of its customers for over 85 years. When you purchase EcoWater equipment you’re buying quality; and that is exactly what we expect you to receive! The Crest of Excellence Performance Guarantee assures you that satisfying customers is our primary con- cern, and allows you to feel secure and confident with the quality of your purchase.
Page 5: Specifications & Performance Claims
ECOWATER Specifications & Performance Claims S Y S T E M S SPECIFICATIONS ECR3700R20 ERR3700R20 ECR3700R30 ECR3702R30 ERR3702R30 Model Code HR20 HR20+ HR30 2H30 2H30+ 5,500 6,000 8,100 8,100 8,100 Rated Softening Capacity 13,700 14,900 20,100 20,100 20,100 (Grains @ lb. Salt Dose)
Page 6 ECOWATER Specifications & Performance Claims S Y S T E M S These models are efficiency rated. The efficiency rating is valid only at the minimum salt dose and the service flow rate. The softeners have a demand initiated regeneration (D.I.R) feature that complies with specific performance specifications intended to minimize the amount of regenerant brine and water used in their operation.
Page 7: Dimensions
ECOWATER Dimensions S Y S T E M S Cabinet Models 20” 20" Nominal Resin Model Tank Size 3-3/4” ECR3700R20 8” dia. x 35” 14” 3-3/4" 14" ECR3700R30 10” dia. x 35” ERR3700R20 TOP VIEW TOP VIEW IN - OUT IN - OUT 44-7/8”...
Page 8 ECOWATER Dimensions S Y S T E M S Two-Tank Models Nominal Resin Dimension Dimension Model Tank Size ECR3702R30 10” dia. x 35” 45” 39-1/8” ERR3702R30 10” dia. x 47” 57” 51-1/8” ECR3702R40 ECR3702R50S ERR3702R50 14-1/4” 12” dia. x 54”...
Page 9: Planning Installation
A drain is needed for recharge discharge water. A floor A 120V, 60 Hz, grounded, continuously “live” electrical drain is preferred, close to the EcoWater Systems con- outlet is needed, in a dry location near the EcoWater ditioner/refiner. A laundry tub, standpipe, etc., are other Systems conditioner/refiner.
Page 10: Unpacking
Remove and discard (RECYCLE) all packing materials. We a. If installing an EcoWater Systems Bypass Valve, put suggest you keep the small parts in the bag until you are lubricated o-ring seals onto both bypass valve ports (See ready to use them.
Page 11: Installation
6. ASSEMBLE INLET & OUTLET PLUMBING To restore the ground, do either step 8a or 8b following. a. Use the EcoWater ground clamp kit (not included) to make Measure, cut, and loosely assemble pipe and fittings from the a jumper across the inlet and outlet pipes (See Figure 6A).
Page 12 CONDITIONER/REFINER spurting or air bubbles. Care is taken at the factory to keep your EcoWater d. After about three minutes, open a hot water faucet for Systems conditioner/refiner clean and sanitary. However, one minute, or until all air is expelled.
Page 13 “Connected” and gives you a key code. If not, you may need to cancel and use When the EcoWater Systems conditioner/refiner is the browser option. plugged in for the first time, a beep sounds and the dis- play briefly shows a logo, followed by model informa- tion.
Page 14 14. Once the key code is displayed (it may take a few seconds) , write it down. It will be used when you 9. On your laptop, register your system on the EcoWater web site. tablet or phone, NOTE: If the “Connected” message shows “- - - - - -”...
Page 15 ECOWATER Setup Procedure for Wi-Fi Systems S Y S T E M S 22. Press the SELECT (¡) button. System information Wireless information DSN: AC000W000009876 Model information Iron level Wireless information Key: Water available abc123 0.0 PPM FIG. 22 FIG. 24 NOTE: You can look up the current key code on your 23.
Page 16 In the verification screen, click the “logging in” link (or go to http://wifi.ecowater.com). EcoWater Wi-Fi web site. If a system is not shared, the dealer only has access to the “Dealer Communication 7. Log in with the e-mail and password that you entered Preferences”...
Page 17: Wi-Fi Systems: Setup, Connect & Registration . 13-16 Non-Wi-Fi Systems: Setup & Remote
Button Button SETUP PROCEDURE 6. Press the SELECT (¡) button. When the EcoWater Systems conditioner/refiner is plugged in for the first time, a beep sounds and the dis- Hardness play briefly shows a logo, followed by model informa- tion. Next, a series of “wizard” screens prompts you to 25 grains FIG.
Page 18 Notify the trans- 1. Snap one of the support’s two tabs into the rectangu- portation company if damage is present. EcoWater lar slot on the back of the remote’s case (See Figure Systems is not responsible for in-transit damages.
Page 19 ECOWATER Non-Wi-Fi Systems Only: Connecting the Remote S Y S T E M S CONNECTING TO REMOTE Connect to remote When the conditioner/refiner’s electronic control is first powered up, it is not yet in communication with the remote. Do the following to establish a link between Looking for remote...
Page 20 ECOWATER Non-Wi-Fi Systems Only: Remote Operation S Y S T E M S ADDING A DEVICE Photo LEFT RIGHT Display Cell Button Button Button To initiate communication between the remote and a device such as a conditioner/refiner, it is necessary to add the device to the remote by doing the following: 1.
Page 21 REMOTE Active Alerts ® FIG. 50 (if any) The EcoWater Systems HydroLink remote is part of a ® wireless system which monitors multiple water treat- Some screens have more information than can be ment devices in a home. These water treatment...
Page 22 ECOWATER Non-Wi-Fi Systems Only: Remote Operation S Y S T E M S CHECKING RF SIGNAL STRENGTH SETTING THE LANGUAGE During installation of a system, it is useful to check the Language is set independently on the remote and con- strength of the signal from a water treatment device.
Page 23 ECOWATER Non-Wi-Fi Systems Only: Remote Operation S Y S T E M S DRINKING WATER STATUS MESSAGE RECHARGING THE CONDITIONER/REFINER If a communications-capable drinking water filtration This feature may be used to assure an adequate supply of conditioned water at times of unusually high water (RO) system has been added to the remote, it will have use.
Page 24 ECOWATER Non-Wi-Fi Systems Only: Remote Operation S Y S T E M S SETTING CONDITIONER/REFINER CHANGING WHICH DATA ITEMS ARE DIS- RECHARGE TIME PLAYED IN THE STATUS SCREENS When the conditioner/refiner’s electronic control is first Each device added to the remote (conditioner/refiner, powered up, the default time for starting an automatic drinking water system, etc.) has a status screen which...
Page 25 ECOWATER Non-Wi-Fi Systems Only: Remote Operation S Y S T E M S CHANGING THE ORDER OF DATA ITEMS 5. Press the DOWN (6) or UP (5) buttons to scroll DISPLAYED IN THE STATUS SCREENS through the list of display data items. Items with a check mark in the box next to them will be displayed during normal operation.
Page 26 ECOWATER Non-Wi-Fi Systems Only: Remote Operation S Y S T E M S CHANGING WHICH DATA ITEMS MAY BE RENAMING A DEVICE REMOTELY CONTROLLED Each device (conditioner/refiner, drinking water system, etc.) in the system has a default name in the header of Some devices (conditioner/refiners, for example) have a its status screen.
Page 27 ECOWATER Non-Wi-Fi Systems Only: Remote Operation S Y S T E M S DELETING A DEVICE To delete a device from the remote (possible reasons for deleting a device include replacing or upgrading the conditioner/refiner’s electronic control): 1. Press the remote’s LEFT (3) or RIGHT (4) buttons to manually advance to the status screen for the device to delete.
Page 28: Conditioner/Refiner Operation
The conditioner/refiner status screens described in the previous section will not be displayed in a rolling During normal operation, the EcoWater Systems condi- sequence when one of the following items is displayed: tioner/refiner’s display shows up to five status screens.
Page 29 ECOWATER Conditioner/Refiner Operation S Y S T E M S MAIN MENU Recharge (See Page 32) Salt settings Main menu Low salt alarm (See Page 31) Recharge Salt type (See Page 31) Salt settings Basic settings FIG. 84 Current time (See Page 32)
Page 30 ECOWATER Conditioner/Refiner Operation S Y S T E M S LOCKOUT FEATURE A “lockout” feature is available to prevent user modifica- tion of parameters that affect conditioner/refiner per- Setup changes formance. The unit is shipped from the factory with the Redo setup lockout feature off.
Page 31 ECOWATER Conditioner/Refiner Operation S Y S T E M S LOW SALT ALARM SETTING SALT TYPE Use this feature to program when the electronic control Use this feature to program the electronic control with will display a low salt alarm. The number of days can which type of salt is used.
Page 32 ECOWATER Conditioner/Refiner Operation S Y S T E M S RECHARGING THE CONDITIONER/REFINER SETTING THE CURRENT TIME This feature may be used to assure an adequate supply When the conditioner/refiner’s electronic control is first of conditioned water at times of unusually high water powered up, a “wizard”...
Page 33 ECOWATER Conditioner/Refiner Operation S Y S T E M S SETTING RECHARGE TIME SETTING HARDNESS When the conditioner/refiner’s electronic control is first When the conditioner/refiner’s electronic control is first powered up, the default time for starting an automatic powered up, a “wizard” screen prompts you to enter your recharge is 2:00 a.m.
Page 34 ECOWATER Conditioner/Refiner Operation S Y S T E M S MODIFYING ROLLING SCREENS SETTING THE LANGUAGE When the conditioner/refiner’s electronic control is first During normal conditioner/refiner operation, up to five powered up, a “wizard” screen prompts you to set the status screens are shown in sequence (See language (See Page 13-15 or 17).
Page 35 ECOWATER Conditioner/Refiner Operation S Y S T E M S SETTING TIME FORMAT SETTING HARDNESS UNITS Use this feature to select a 12-hour (AM/PM) or 24-hour Use this feature to select grains or parts per million clock. (ppm) as hardness units.
Page 36 ECOWATER Conditioner/Refiner Operation S Y S T E M S SYSTEM INFORMATION Use these features to look up the following information about the condi- Wireless information tioner/refiner and its operations: DSN: AC000W000009876 Model information (model number and software version) Wireless information (only on Wi-Fi systems) FIG.
Page 37 ECOWATER Conditioner/Refiner Operation S Y S T E M S CYCLE TIMES 8a. Backwash time: Press the UP (5) or DOWN Use these features to change the following conditioner/ (6) buttons to change the backwash time. refiner operations: Hold the button down to rapidly advance. The...
Page 38 ECOWATER Conditioner/Refiner Operation S Y S T E M S SPECIAL FEATURES 8a. Efficiency mode: If the desired efficiency mode already has a dot next to it (See Figure Use these features to change the following operations: 138), go to Step 9. Otherwise, press the...
Page 39 For more details on the use of auxiliary controlled equipment in water treatment systems, consult the If the auxiliary control mode has been set to Chemical EcoWater Systems “Problem Water Guide.” feed, as described in the previous section, two addition- To select an auxiliary control mode: al lines (Chemical feed volume and Chemical feed 1.
Page 40 ECOWATER Conditioner/Refiner Operation S Y S T E M S WATER TO DRAIN SENSOR SERVICE REMINDER (set / reset) (Wi-Fi systems only) Use this feature to program the number of months (up to 24) before a “Service overdue” message will appear When this feature is On (the default setting), a sensor instead of the rolling status screens (See Figure 147).
Page 41 ECOWATER Conditioner/Refiner Operation S Y S T E M S DIAGNOSTICS 11. Press the LEFT (3) button three times to return to the rolling status screens (or error code screen if an This feature allows a service technician to check the error condition exists).
Page 42: Service Information
If the conditioner/refiner uses all the salt before more is Sometimes a hard crust or salt “bridge” forms in the added, hard water will result. EcoWater 3700/3702 brine tank. This is usually caused by high humidity or series models have automatic salt level sensing. The the wrong kind of salt.
Page 43 If it should EcoWater Systems, following directions on the contain- become plugged with dirt, silt, sand, etc., the EcoWater er. Clean the resin every six months, or more often if Systems conditioner/refiner will not work and hard water iron appears in the conditioned water supply.
Page 44 S Y S T E M S RELIEVING WATER PRESSURE WITH THE BYPASS VALVE(S) CAUTION: Always relieve water pressure in the EcoWater Systems conditioner/refiner, as described below, before removing parts from the valve or resin tank. DE-PRESSURIZE 1. Put bypass valve(s) into Bypass position.
Page 45: Troubleshooting Guide
If no problem is found after making the initial checks, (See Figure 8 on Page 11)? proceed to “Troubleshooting - Manual Diagnostics” and 7. Are inlet and outlet pipes connected to the EcoWater “Manual Advance Recharge Check” on the next two conditioner/refiner inlet and outlet respectively?
Page 46 ECOWATER Service Information S Y S T E M S AUTOMATIC ELECTRONIC DIAGNOSTICS CHECKING THE TURBINE 1. Display the Diagnostics screen, following the proce- This conditioner/refiner has a self-diagnostic function for dure on Page 41. the electrical system (except for input power and/or water meter).
Page 47 ECOWATER Service Information S Y S T E M S TROUBLESHOOTING - 11. If the unit does not draw brine, check for: MANUAL ADVANCE RECHARGE CHECK Dirty or defective nozzle / venturi (See Page 43) Nozzle / venturi not seated on the gasket or gas-...
Page 48: Schematic
ECOWATER Schematic S Y S T E M S WIRING SCHEMATIC Control Board on Back of Faceplate Position Switch Turbine Water-to-Drain Detector Orange Sensor Green (Wi-Fi systems) Ribbon White Black Black Valve Power Motor Supply 24V DC Power In 120V AC...
Page 49 ECOWATER Notes S Y S T E M S...
Page 50: Repair Parts
ECOWATER Repair Parts S Y S T E M S ECOWATER SYSTEMS CONDITIONER/REFINER ASSEMBLY (Cabinet Models) Valve Assembly See Pages 54 & 55 for parts...
Page 51 Key Nos. 102 & 105) (includes Key Nos. 17 & 18) 7248706 Ground Clamp Kit Ù á Screw á Not included with conditioner/refiner Ù To order parts, call your local EcoWater dealer or go to www.ecowater.com to locate a dealer in your area.
Page 52 ECOWATER Repair Parts S Y S T E M S ECOWATER SYSTEMS CONDITIONER/REFINER ASSEMBLY (Two-Tank Models) Valve Assembly See Pages 54 & 55 for parts...
Page 53 Brinewell Not included with conditioner/refiner Ù Brinewell Mounting Hardware Kit, – 7357822 (includes Key Nos. 70 & 71) To order parts, call your local EcoWater dealer or go to á www.ecowater.com to locate a dealer in your area. Screw á...
Page 54 ECOWATER Repair Parts S Y S T E M S VALVE ASSEMBLY (All Models)
Page 55 Housing, Nozzle & Venturi 7159949 Disc Valve Housing 7095030 Cone Screen 7334133 Outlet End Seal, single 7084607 Flow Plug, 0.15 gpm, ECR3700R20 7353404 Outlet End Seal, pack of 20 7292323 O-Ring, 3/16” x 7/16” 7334125 Inlet End Seal, single 7120526 Elbow, 90°...
Page 56 All sales in Iowa require the following signature before consummation of sale. These signatures must be retained by seller/renter for 2 years minimum. Buyer/Renter __________________________________________________________ Date _________________ Seller ________________________________________________________________ Date _________________ Seller’s Address _______________________________________________________________________________ Seller’s Phone No. _____________________________________________________________________________ EcoWater Systems Digital Demand Water System – ECR / ERR Series 3700 or 3702...

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EcoWater ECR3700R20 Owner's Manual

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