Models 7180 and 7380
Owner’s Manual
and Installation Guide
5/22/2019
8
Installation Steps and Start-Up Procedures, Cont.
Step 5
Connect Drain Line
The drain line carries away the backwash water as part of the
regeneration cycle.
A.
Screw the drain fitting into the drain end cap using
suitable jointing tape.
B.
Connect the drain line to the drain end cap
with a minimum 1/2-inch I.D. tubing (supplied) and apply
the clip. The size cannot be reduced. (See Figure 4.)
C.
Route the drain line to a floor drain or suitable waste
outlet, maintaining a minimum 2-inch (50-mm) air gap
between the drain line and the flood level rim of the
waste receptor to prevent back-siphoning. This drain
line should make the shortest run to the suitable drain.
D.
The drain line may be elevated up to 8 feet (2.4 m) from
the discharge on the appliance as long as the water
pressure in your system is 40 psi (2.8 bar) or more. The
maximum length for the drain line is 25 feet (7.6 m).
Caution:
The drain line must NOT be kinked, crimped,
or restricted in any way.
Step 6
Flush Lines
A.
Place the appliance in the Bypass position.
B.
Turn on the main water supply.
C.
Open the nearest cold water tap to flush the plumbing of
any excess soldering flux, air, or any other foreign
material.
D.
Return the appliance to Normal Operation.
Step 7
Check for Leaks
A.
Turn on the water supply.
B.
Slowly open the inlet valve to slowly fill the media tank.
C.
Open the outlet valve and allow the air to purge out of
the media tank to the nearest cold mains water draw
off point.
Note:
This water may be discolored at first. This is quite
normal and nothing to worry about.
D.
Run until the water runs clear.
E.
Close the tap and recheck for leaks.
Figure 4: Connect Drain Line
Figure 5: Bypass Position
