Installation
All plumbing must conform to local codes.
Inspect unit carefully for carrier shortage or shipping
damage.
Location Selection
1. The distance between the unit and a drain should be
as short as possible.
2. If it is likely that supplementary water treating
equipment will be required, make certain adequate
additional space is available.
3. Since salt must be added periodically to the brine
tank, the location should be easily accessible.
4. Do not install any unit closer to a water heater than
a total run of 10 feet (3 m) of piping between the
outlet of the conditioner and the inlet to the heater.
Water heaters can sometimes overheat to the
extent they will transmit heat back down the cold
pipe into the unit control valve.
Hot water can severely damage the conditioner. A
10-foot (3-m) total pipe run, including bends,
elbows, etc., is a reasonable distance to help
prevent this possibility. A positive way to prevent
hot water from flowing from heat source to the
conditioner, in the event of a negative pressure
situation, is to install a check valve in the soft water
piping from the conditioner. If a check valve is
installed, make certain the water heating unit is
equipped with a properly rated temperature and
pressure safety relief valve. Also, be certain that
local codes are not violated.
5. Do not locate unit where it or its connections
(including the drain and overflow lines) will ever be
subjected to room temperatures under 34
o
F (1
o
C)
or over 120
o
F (49
o
C).
6. Do not install unit near acid or acid fumes.
Water Line Connection
A bypass valve system must be installed since there
will be occasions when the water conditioner must be
bypassed for hard water or for servicing.
The most common bypass systems are the Autotrol
®
Series 256 bypass valve (Figure3) and plumbed-in
globe valves (Figure4). Though both are similar in
function, the 256 Autotrol bypass offers simplicity and
ease of operation.
Figure 3– Autotrol Series 256 Bypass Valve
Figure 4– Typical Globe Valve Bypass System
Drain Line Connection
1. Ideally located, the unit will be above, and not more
than 20 feet (6.1 m) from the drain. For such
installations, using an appropriate adapter fitting
(not supplied), connect 1/2-inch (1.3-cm) plastic
tubing to the drain connection located on the
control.
2. If the unit is located more than 20 feet (6.1 m) from
drain, use 3/4-inch (1.9-cm) tubing for runs up to
40 feet (12.2 m).
3. If the unit is located where the drain line must be
elevated, you may elevate the line up to 6 feet
(1.8 m) providing the run does not exceed 15 feet
(4.6 m) and water pressure at conditioner is not less
than 40 psi (2.3 bar). You may elevate an additional
2 feet (61 cm) for each additional 10 psi (0.69 bar).
4. Where the drain line is elevated but empties into a
drain below the level of the control valve, form a
7-inch (18-cm) loop at the far end of the line so that
the bottom of the loop is level with the drain
connection. This will provide an adequate siphon
trap.
5. Where the drain empties into an overhead sewer
line, a sink-type trap must be used.
Water
Conditioner
Water
Conditioner
Not in Bypass In Bypass
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