Installation - A.O. Smith Pro AOW-S400 Owner's Manual

INSTALLATION

INSTALLATION GUIDE
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1 Prepare the Appliance
Remove all packaging or installation
materials from brine cabinet.
2 Prepare the Placement Area
1 Ensure the placement area is clean.
2 Turn off electricity and water supply to
the water heater. For gas water heaters,
turn the gas cock to "Pilot".
3 Examine inlet plumbing to ensure that
the pipe is not plugged with lime, iron,
or any other substance. Clean or replace
plugged plumbing.
NOTICE: A minimum 3/4" pipe is required between
the pressure tank and the water softener for it to
function properly. This note does not apply to city
water, only to well water.
Ensure inlet/outlet and drain connections
meet the applicable state and local codes.
Check arrows on bypass valve to ensure the
water flows in the proper direction. (see
Bypass Valve Overview)
NOTICE: Do not install water
softener backwards.
Turn Off Water Supply
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1 Turn off the water supply.
2 Open the hot and cold water taps to
depressurize the lines.
Place water softener in desired location
using the system configuration diagram
as a guide. The diagram applies to a
basement, slab, crawl space, and outside
installations.
For most installations, install appliance
after the pressure tank and any water
filter appliance or water meter; and
before the water heater unless otherwise
recommended. When installing additional
filters, such as a carbon filter for well water,
place the filter after any water conditioning
appliance unless otherwise recommended.
Water Heaters: If less than 10' (3 m) of pipe
connects the water treatment appliance(s)
to the water heater, install a check valve
between water treatment appliance and
water heater as close to the water heater
as possible. An expansion tank may also
be used. Ensure the water heater has an
adequately rated temperature and pressure
safety relief valve.
NOTICE: It is strongly recommended to cover
the unit if installed outdoors.
Connect Water Lines
4
Connect water lines in compliance with
all state, local, building, plumbing, and
electrical codes. Valve connection fittings
on the back of the unit are 1" MNPT. They
can be connected to your home's plumbing
supply with a variety of connectors or
fittings (sold separately). You can plumb
your softener to CPVC, PEX, or copper. If
using copper fittings do not allow solder
torch to melt the plastic threads on valve.
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