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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.

CARE & SAFEGUARDS

INSTALLATION GUIDE

NEED HELP? GIVE US A CALL

 877.333.7108

STEP 1

   Prepare for Installation

STEP 4

   Reattach Sumps

1

 2

1

 2

 3

1

 2

1. 

Turn off COLD water valve (1). 

Release pressure from system by 

turning on dedicated faucet until 

water stops flowing (2).

2. 

Unbox filter cartridge replacements 

and remove plastic.

Reattach sumps to system manifold with 

Stage 1 on the left and Stage 2 on the right. 

Make sure connection points are aligned, 

push top of sump into bottom of system 

housing, and twist to the right. Ensure that 

each sump is fully attached and locked in.

 

Note: Ensure sumps are not on an angle 

while reattaching. This may result in 

damage to the o-ring.

STEP 2

   Remove Filter Cartridges

STEP 5

   Replace Battery

1. 

Remove each sump from the unit 

housing by rotating the sump to the 

left and pulling down.

2. 

Holding the sumps over the sink, 

unscrew the top of the sump from 

the bottom by turning the bottom 

portion to the right. Pour excess 

water down the drain. Then, pull 

down on each filter cartridge to 

disconnect the filter cartridge from 

the top half of the sump.

3. 

Discard both filter cartridges. 

 

Note: If sumps are too tight to 

disconnect by hand, please use 

the plastic wrench included with 

original system. 

Open battery door and remove old battery. 

Insert new battery with the positive side 

facing to the back. When inserted properly, 

the system will beep five times and blink red.

STEP 3

   Insert Filter Cartridges

STEP 6

   Flush and Check for Leaks

1. 

Press new filter with clear 

netting to the top of the Stage 

1 sump. Reattach the bottom of 

the sump by ensuring connection 

points are correctly aligned, then 

turn to the right to tighten. 

2. 

Continue this step for Stage 2 

using the new filter with the 

blue netting. 

 

Note: Do not use tools to 

tighten. Hand tighten only.

Slowly turn on COLD water supply. Turn off 

dedicated faucet and check for leaks. Then, 

turn on dedicated faucet and leave water 

running to flush cartridges for 10 minutes 

or until water is clear of carbon fines. 

 

Note: Do not drink flushed water.

Scan to view AO-US-200 

replacement video.

Summary of Contents for AO-US-200-R

Page 1: ...USAR CON AO US 200 Replacement Manual El manual del repuesto 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 SI NECESITA AYUDA O TIENE ALGUNA CONSULTA LLÁMENOS AL 877 333 7108 NO ES NECESARIO QUE VUELVA A LA TIENDA ...

Page 2: ... in damage to the o ring STEP 2 Remove Filter Cartridges STEP 5 Replace Battery 1 Remove each sump from the unit housing by rotating the sump to the left and pulling down 2 Holding the sumps over the sink unscrew the top of the sump from the bottom by turning the bottom portion to the right Pour excess water down the drain Then pull down on each filter cartridge to disconnect the filter cartridge ...

Page 3: ...ucho de Filtro PASO 5 Reemplazar la Batería 1 Retire cada sumidero de la carcasa de la unidad girando el sumidero hacia la izquierda y tirando hacia abajo 2 Sosteniendo los sumideros sobre el fregadero desenrosque la parte superior del sumidero de la parte inferior girando la parte inferior hacia la derecha Vierta el exceso de agua por el desagüe Luego tire hacia abajo de cada cartucho de filtro p...

Page 4: ...200 is every 6 months or every 500 gallons of use La frecuencia de cambio recomendada para el AO US 200 es cada 6 meses o cada 1 892 litros 500 de uso Use only certified genuine A O Smith replacement filters for continued contaminant removal and system performance Visit AOSmithAtLowes com to find replacements or visit your local Lowe s store Solo use filtros de repuesto originales A O Smith y cert...

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