Sears 390.304550, Руководство пользователя

Страница: 3 / 9

3
THE SUMP
The sump should be located at the lowest place in the
basement or area to be drained. Floor drains from other
areas in the basement may be tiled into the sump. Drain
tile around a house foundation can also be tiled into the
sump, effectively removing water and relieving pressure
from this area. A suitable sump can be a 20" or 24" (500-
610mm) sewer tile. The minimum size is 12" (305mm) in
diameter for automatic float switch.
A sump cover is desirable to exclude refuse from the
sump. Consult local code for sump cover specifications.
NOTICE: Periodically inspect pump, system components,
and sump for debris and foreign objects. Keep sump free
of all refuse. Perform routine maintenance as required.
PUMP INSTALLATION
Set the pump on the bottom of the sump, making sure that
is sits solidly and is level. Be sure there is enough space
around the pump to allow the switch free movement as
the sump water level changes.
Risk of flooding. If a flexible discharge hose
is used, pump may move around in sump when motor
starts. If it moves far enough so that the switch hits the
side of the sump, the switch may stick and prevent pump
from starting. Make sure that pump is secured so that it
cannot walk around in sump.
Hose Kit No. 2790 includes 1-1/4" flexible plastic pipe for
the discharge pipe. Run discharge pipe to the nearest
sewer outlet or other point of disposal. Use the most direct
route and the fewest turns and elbows possible. Make sure
that pump cannot move around in sump pit.
Use teflon tape to seal threads in plastic pipe. Hand tighten
only.
NOTE: To avoid backflow into sump when pump shuts
off, install a Sears Check Valve, Stock No. 2789, in
threaded discharge port of pump. Be sure arrow on check
valve body points away from the pump.
AUTOMATIC FLOAT SWITCH
INSTALLATION AND OPERATION
The automatic float switch is factory mounted on the
pump and preset for a pumping range of approximately
7". Tether length is factory preset at 3-1/2" (89mm) (see
Figure 3, Page 4). Do not change tether length.
When sump is dry, the watertight automatic float switch is
hanging in a downward position and the pump is off.
As water comes into the sump, the automatic float switch
rises to an upward position and the pump starts.
Water will continue to be pumped until the float switch is
hanging in the downward position again, when pump will stop.
Risk of electric shock. Before installation,
check your local electrical codes. To avoid personal
injury when servicing your pump, be sure that the power
is disconnected from both the pump and the float switch.
To check operation, fill sump with water and observe
operation through one complete cycle.
DO NOT ALLOW PUMP TO RUN DRY
Pump should not be allowed to run dry prior to shutting
off. To do so voids the warranty and could ruin the pump.
Switch Failure
If switch fails, pump can be operated by unplugging motor
cord from switch cord and plugging motor cord directly
into electrical outlet.
Sewer Tile
Concrete
Sewer Tile
Sump Cover
Basement Floor
1/4" (6mm)
24" Min.
(610mm)
20" to 24"
(500 to 610mm)
20" to 24" Diam.
(500 to 610mm)
FIGURE 1
Foundation
Footing
Drain
Check
Valve
Auto
Float
Switch
Grounded
Electrical
Outlet
Make sure
pump cannot
move in sump
FIGURE 2
31/2"
(89mm)
FIGURE 3 – Tether Length