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TABLE I Performance
Chart/Sears
Diehard
Size 24M or 27M
VERTICAL PUMPING DISTANCE
8 FEET
10 FEET
12 FEET
Battery Size
27M
24M
27M
24M
27M
24M
Gallons Per Minute
18.0
18.0
14.5
14.5
11.5
11.5
Hours Available
9.6
8.3-
9.9
8.3
6.8
5.7
Total Gallons Pumped
7,212
6,0_55
5,557
4,939
3,727
3,189
BATTERY
REQUIREMENTS
[A WARNING] Hazardous
electrical
current.
Can cause se-
vere burns
and start a fire if battery
terminals
are short cir-
cuited.
Install battery
in box. To prevent
accidental
shorting
across battery
terminals,
strap cover securely
on battery box.
Do not leave
battery
uncovered.
Do not allow
children
to
play around
sump
pump
installation.
Your Backup
Sump Pump depends
on the battery
used with
it for power.
The better
the battery,
the better
the perfor-
mance
of the pump.
We recommend
use of a SEARS DieHard
Size 27M or 24M Deep-Cycle
Marine
battery.
This battery
will perform
well for many hours and stands
up well to long
periods
of little or no use.
In an emergency
a SEARS DieHard
Size 27M or 24M standard
automobile
battery
may be used.
However,
an automotive
battery
may require
charging
after only 1 to 2 hours of con-
tinuous
use, and the repeated
charging
cycles
may cause
early plate
failure in the battery.
Use only a new, fully charged
battery
that will fit in the bat-
tery box (maximum
size 12-5/8"
long, 7" wide
and 9-3/8"
high including
terminals).
PUMP
INSTALLATION
and OPERATION
NOTICE:
We recommend
a trial fitting
of all components
before
gluing
anything.
This will allow you to check
pump
mounting
height,
float switch
clearance,
etc., while adjust-
ments
can still be easily made.
1. Mark side of sump six inches
down from top.
2.Fill scamp until primary
sump
pump
starts;
normal
high
water
level should
not be above mark made in step 1. If
it is higher,
backup
float switch may not swing far enough
for proper
operation.
To lower
high water
level, adjust
switch
on
primary
sump
pump.
See
primary
pump
owner's
manual.
3.Drain
sump.
Measure
down
11 inches
from top of sump;
mark this point
on side of sump. Install tee with center
of
threaded
inlet at least this far below
top of sump to allow
sufficient
room for float switch
to swing (see Figure 2A).
4.Make sure that installation
will not interfere
with primary
sump
pump
operation
as follows:
A. Backup pump
installation
must not interfere
with
pri-
mary sump
pump
float switch
swing.
B. Normal
high water
level must never be high enough
to start backup
sump pump.
C. Install a check
valve (SEARS Stock
No. 2789) in the
main sump
pump
discharge
pipe between
the pump
and the backup
mounting
tee (see Figures 2A and 2B).
How through this check valve must be away from the
main
sump
pump;
don't
install
it backwards!
This
check
valve will prevent
recirculation
into the sump
during
battery-powered
pump
operation.
5.Cut
rigid discharge
pipe from
primary
sump
pump
to
length.
Use PVC piping.
Tee supplied
is 1-1/2" slip fit; if
necessary
use 1-1/4" bushings
supplied.
NOTICE:
Use any tee that fits sump pump discharge
line;
the adapter
that is supplied
(Key No. 10, Page 7) will fit
any galvanized
or plastic
1-1/4" tee. Do not glue the tee
until all parts have been trial fitted.
6.Thread
adapter
into
tee (Figure
2B). When
installed,
molded-in
'up' should
be on top.
7.install
backup
pump
check
valve
in adapter.
Tab on
backup
pump
check
valve
fits into
notch
at top
of
adapter.
8.For trial assembly,
slip pump
into backup
pump
check
valve to check pump
mounting
height
and to make sure
that there
is no interference
with float switch
operation
on either
pump;
be sure
floats will not rub on side of
sump,
catch
between
pump
and
sump
wall, interfere
with each other,
etc.
9. Remove
pump
from adapter;
remove
tee.
lO.Using
PVC glue,
permanently
reinstall
tee in primary
sump pump
discharge
pipe.
6" Min. T_
(152mm)1 m
Grounded
Electrical
Outlet
4
__
1380 1194
Figure 2A - Standard
Installation
:
4
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