A O Smith AO-US-RO-MB-4000 Reverse Osmosis Membrane Instruction Manual
- June 12, 2024
- A O Smith
Table of Contents
AO-US-RO-MB-4000 Reverse Osmosis Membrane
Instruction Manual
IF YOU NEED HELP OR HAVE A QUESTION, WE’VE GOT YOU COVERED. GIVE US A CALL AT 877.333.7108 PLEASE DO NOT RETURN TO THE STORE.
INSTALLATION GUIDE
STEP 1 Prepare for Installation
- Turn off COLD water valve. Release pressure from system by turning on dedicated faucet until water stops flowing.
- Unbox membrane replacement and remove plastic.
STEP 2 Disconnect and Remove Flow Restrictor
- Disconnect the 1/4″ red hose from the drain port on membrane filter elbow by pushing down on the collar while pulling plug with your other hand.
- Remove and discard the flow restrictor.
STEP 3 Remove Cartridges
- Remove the membrate cartridge from the system manifold by rotating the sump to the left and pulling down.
- Discard the old membrane cartridge.
STEP 4 Attach Cartridges
- Take the new membrane cartridge from the packaging and remove the protective cap from the head of the membrane.
- Attach membrane cartridge to the bottom of the system manifold, making sure all connection points are aligned. Push the top of the sump up and into the bottom of the manifold and turn the sump towards the right. Ensure the sump is fully attached and locked.
STEP 5 Insert Flow Restrictor
- Insert the new flow restrictor into the red 1/4″ tubing. Push red tubing into the drain port elbow on membrane filter.
Note: Be sure red tube and elbow are inserted all the way.
STEP 6 Flush and Check for Leaks
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Turn on the cold water valve. Flush system by opening the dedicated faucet and letting water flow through the system for 24 hours.
Note: Do not drink flushed water. -
Once the system has been flushed, turn off the dedicated faucet. Allow 2 hours for pressure to build up in the system. During this time, check for leaks. After the tank has filled, system is ready to use.
CARE & SAFEGUARDS
Care
To clean system manifold, wipe exterior with a damp cloth. Do not use any
strong abrasive cleaning agent or solvent cleaner.
NOTICE
Safeguards
- If you experience a hose connection leak, disconnect and re-set the hose.
- Must replace filter housings every 5 years or risk property damage from leaks. Call 800.821.2017 to order.
- Do not use with water that is microbiologically unsafe or of unknown water quality without adequate disinfection before or after the system.
- Systems certified for cyst reduction may be used on disinfected waters that may contain filterable cysts.
Scan to view the AO-US-RO-MEM replacement video.
System certified by IAPMO R&T against NSF/ANSI Standard 58 for the reduction of claims specified on Performance Data Sheet and at www.IAPMO.com.
- Rated capacity: 12 months depending on contaminant levels & usage.
- Systems certified for cyst reduction may be used on disinfected water that may contain filterable cysts.
For the full list of contaminants filtered, scan to view the AO-US-RO-MB-4000 Performance Data Sheet.
A. O. Smith Corporation
11270 W Park Pl #170, Milwaukee, WI 53224
877.333.7108