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SENTRY II 970 Series - Page 6

SENTRY II 970 Series
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Installation
10. Temporary Drain Tube: Now that the water
softener is connected to the existing plumbing,
the drain line may be connected. First, discon-
nect the temporary piece of drain tubing and
remove the polytube insert (#2) from the inside
of the temporary drain tubing. Discard the tem-
porary drain tubing.
11. Connecting the drain line: Slide plastic nut
(#3) over the permanent drain tubing and place
the polytube insert (#2) into the end of the drain
tubing. Insert the drain tubing into the drain
elbow fitting (#4) and tighten plastic nut (#3)
handtight plus 1/2 turn with pliers. Caution:
Do
Not Overtighten. (see Figure 4)
12. Drain Line Specs: If the distance from the
water softener to the drain is greater than 20’
the drain line size must be increased to 3/4”.
The threads on the drain elbow fitting are 3/4”
male NPT and can be used in lieu of the 1/2”
plastic nut and insert. If the drain line must
run overhead, the maximum height of the drain
line should not exceed 8’ above the top of the
water softener.
13. Air Gap: The drain line must have an approved
air gap to prevent the possibility of a cross con-
nection to the sewer. (see Figure 5)
14. Connecting the overflow line: The brine
overflow fitting is located on the outside of the
salt container approximately 12” down from the
top. Connect 1/2” drain tubing to the overflow
fitting and run it to the nearest floor drain. This
line is a gravity flow line and cannot be run
overhead or cannot connect to a drain that is
higher than the overflow fitting.
15. Connecting the brine line: A 3/8” brine line
approximately 4’ long is attached to the salt con-
tainer and is supplied with the tube insert (#2)
in the end of the brine line. (see Figure 6)
Unscrew the brine nut (#3) and slide it over the
end of the brine line. Insert the brine line into
the brine ftg. (#4) and tighten the brine nut (#3)
hand tight plus 1/2 turn with pliers. Caution:
Do Not Overtighten.
16. The water softener is equipped with a 15 foot
power cord with built-in transformer. Plug the
power cord into a standard (120V 60Hz) electri-
cal outlet. It will take approximately 10 seconds
before you will see the display (this is normal).
The water softener is now ready to be pro-
grammed.
Page 6
Figure 4
Wrong
Right
Figure 5
Figure 6