GE Autorol 255 Valve / 400 Series - Manual (Page 7)

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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). Also, purchase appropriate fitting to connect
the 3/4-inch tubing to the 1/2-inch NPT drain connection.
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 (2.76 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 line 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.
IMPORTANT: Never insert drain line into a drain, sewer line or trap. Always allow
an air gap between the drain line and the wastewater to prevent the possibility of
sewage being back-siphoned into conditioner.
Figure 6
Note: Standard commercial practices have been expressed here. Local codes may
require changes to these suggestions.
Brine Line Connection
It will be necessary to install the brine tube and line to a fitting installed on the air
check. Teflon
*
tape all threaded connections.
Be sure all fittings and connections are tight so that premature checking does not take
place. Premature checking is when the ball in the air check falls to the bottom before
all brine is drawn out of the brine tank. See Placing Conditioner into Operation
section.
*Teflon is a registered trademark of E.I. DuPont de Nemours and Company, Inc.
Overflow Line Connection
In the absence of a safety overflow and in the event of a malfunction, the BRINE TANK
OVERFLOW will direct “overflow” to the drain instead of spilling on the floor where it
could cause considerable damage. This fitting should be on the side of the cabinet or
brine tank.
Right Way
Drain Line Tube
Drain
Correct Way