Sears, EcoWater, GE, Northstar Filter Change Instructions & Manuals

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Sears/Ecowater/GE/Northstar
Filter Replacement Instructions
All these systems are made by EcoWater Systems. 
Although the name may be different for your system, the manuals are all the same.
Sears® 625.343920 2-Stage Undercounter Drinking Water System
Sears® 625.343921 2-Stage Undercounter Drinking Water System
Sears® 625.345500 Countertop 1-Stage System.
Sears® 625.345510 Countertop 1-Stage System.
Sears® 625.347001 Reverse Osmosis System
Sears® 625.384700 UltraFilter 100 Reverse Osmosis System

Use These Manuals For:

EcoWater ERO200    EcoWater ERO 300
Northstar NSRO2SF       Northstar NSRO
Northstar NSROWF

Video On How To Replace The Filters and Reverse Osmosis System. Also Shows How To Re-Pressurize The System.

GE® PN RV18ZBB01, GE® RV18ZBL01, 
GE® RV18ZWW01, GE® RV18ZWH01

EcoWater® EcoElite, EcoWater® ERO 292, 
EcoWater® ERO 392, EcoWater® ERO 494

Sears® 625.75639 Countertop 1-Stage System.
EcoWater ERO B524
Installation & Service Manual (Zip File)
 
CAUTION: BEFORE WORKING ON THE SYSTEM, DO THE FOLLOWING TO RELIEVE WATER PRESSURE IN THE RO TANK.
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1a. Turn off the water supply to the RO.
b. Close the tank shutoff valve.
c. Open the product water faucet and keep it open.
d. Disconnect the postfilter.
e. Using a 2 gallon container to catch the water, open the tank shutoff valve to empty the storage bladder.

2. Looking at FIG 1, remove the protective cap and depress the relief valve stem, allowing air to ENTER the tank (do not block valve passage). Release the valve stem AFTER flow from the shutoff valve slows to a slight drip. Replace the protective cap.

CAUTION: This valve is for vacuum relief only. DO NOT attempt to pressurize the tank with air.

3. Reconnect the postfilter.
 
To Replace The Postfilter

CAUTION: BE SURE TO RELIEVE THE PRESSURE, STEPS 1, 2, AND 3 ABOVE!

1. Disconnect the tubing at both ends (FIG 1).

2. Pull the filter from the holder and remove the fittings from both ends.

3. Observing the FLOW ARROW on the new filter, install the fittings (using teflon tape) into the ends of the new filter.

4. Replace the filter into the holder and reconnect the tubing at both ends.

FIG 1
 
To Replace The Prefilter Cartridge and RO Membrane

CAUTION: BE SURE TO RELIEVE THE PRESSURE, STEPS 1, 2, AND 3 ABOVE!

IMPORTANT: Be sure your hands are clean before working on RO system internal parts!

1. Remove the clamp retainers and clamp sections (FIG 1).

2. Separate the cap from the RO housing (you do not have to disconnect the tubing) and set aside.

NOTE: If the cap o-ring seal remained in the RO housing, replace it on the cap.

3. Lift the RO cartridge and prefilter cartridge from the housing, then separate and dispose of the prefilter cartridge.

4. Dump out the remaining water in the RO housing.

5. Slide the RO cartridge INTO THE TOP END of the new prefilter cartridge and then place into the RO housing.

NOTE: BE SURE THE BOTTOM END OF THE PREFILTER IS AT THE BOTTOM, AND THE O-RINGS OF THE RO MEMBRANE ARE AT THE BOTTOM.

6. Be sure the cap o-ring has lubrication. Then push into position and install clamp sections and retainers.

7. If you have the Electronic Monitor, replace the batteries.

8. Turn on the water supply and if you have replaced the RO Membrane, you need to PURGE THE RO MEMBRANE.
 
Returning System To Service, Purging Instructions

1. Open the water supply valve to the system. Be sure the tank shutoff valve is open.

2. In about 4 hours, pressure will start to build in the RO System. At that time, check your work to be sure there are no water leaks.

3. If the RO membrane was replaced, do the following purging instructions:

NOTE: DO NOT drink the water until after the system has been purged.

After the storage tank has filled (usually about 8 hours), open the drinking water faucet until the system is empty. Allow to fill again and drain system once more. Allow the system to fill and you are ready to use the water.
 
 


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