5
Sump Depths:
16
’ 0” – 30’ 0” – 1 Guide rail brace required
30-
‘0” – 45’0” – 2 Guide rail braces required
7. Exterior Piping;
Install the inlet hub(s) in the side of basin and install inlet piping in the hub and grout, or install inlet pipe(s)
directly into basin and grout. Install drain pipe form valve box (if required) to basin. Slope pipe to give proper
drainage to basin. Install vent piping in side of basin (if required). Extend piping to a proper elevation above
grade (as required by plans and specifications and/or local codes). All piping furnished by others. See
Installation drawing Data for typical piping arrangement.
8. Pump and Sealing Flange:
Assemble the Sealing Flange to the pump discharge flange using a gasket between the two.
9. Pump Installation:
Check all piping braces and supports for proper installation and tightness. Attach one end of the lifting cable
or chain to the pump eyebolts and the other to hook supplied on the inside of the hatch frame.
Lower the pump into the basin locating rail guide between the two guide rails. Attach the upper end of lifting
assembly to a hook provided on the inside of hatch frame.
10. Float Switches
Mount the float switch mounting bracket to the door and frame assembly using 3/8
–16UNC stainless steel
screws. Include a dielectric gasket
(by others) between dissimilar metals to avoid galvanic corrosion. Allow
excess float cable to loop over mounting bracket. The sump level is controlled by Keen Pump float switch
controls. The float is held in position in the sump by a weight attached to the power cord above the float. The
cord supports the float and is adjusted for height from the surface. Duplex systems use three controls: one at
both pumps off, one set at one pump on, and one set for both pumps on. Pumps alternate operation on each
successive cycle with a Keen Pump Panel. The alarm level is usually set above the override level as it is
possible for one pump to fail and the other to operate on the override level with the sump level never reaching
the alarm level. Do not let floats rest against basin wall or bottom, or entangle with each other or pump(s).
11. Panel Mounted Remote from Basin:
If the Control Panel is remotely located, install conduit coupling through basin wall. Screw protective bushing
from inside basin into coupling (all furnished by others), Make connections outside station using wiring,
conduit seals (potted) and conduit to remotely located Panel (conduit and seals not furnished). Insert the
power and sensor cords through the coupling provided with the bushing. Grout in coupling goes through sump
wall (by others). When installing pump power cords, make certain that cords do not rub against pump or on
bottom of basin. Shorten cords to suit the installation.
