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Installing Float Switch
Controls:
The  controls  are  supported  by  a
mounting  bracket  that  is  attached
to  sump  wall  or  cover  or  to  the
NEMA 4 junction box.

Cord  snubbers  are  used  to  hold
the  cord  in  place.  Control  lever
can  be  changed  at  any  time
by  loosening  the  snubber  and
readjusting cord length.

In either simplex or duplex system
the  lower  or  turn-off  control  is
set  just  above  the  top  of  volute
so  that  the  volute  will  always  be
submerged  during  the  pumping
cycle.  The  second  or  turn-on
control  is  set  about  24  inches
above the lower turn-off control.

More  distance  between  turn-on
and turn-off controls can be used,
but  sewage  may  become  septic
and  excessive  solids  may  collect
for the pump to handle. A frequent
pumping  cycle  is  recommended
for best operation.

If an alarm system is used, this
control is usually set about 6 inches
above the override control.

Some  engineers  as  described
previously  prefer  to  have  the
alarm  control  set  below  the
override control.

Making Electrical Connections:
ALL ELECTRICAL WIRING
MUST BE IN ACCORDANCE
WITH

LOCAL

CODE,

AND

ONLY

COMPETENT

ELECTRICIANS

SHOULD

MAKE  THE  INSTALLATIONS.
Complete  wiring  diagrams  are
glued  to  the  inside  cover  of  the
panel,  and  an  additional  set  of
prints  is  included  for  use  in
making  the  installation. All  wires
should  be  checked  for  grounds
with an ohmmeter or Megger after
the connections are made.

this is

important, as one grounded wire

Pump
Operations

can cause considerable trouble.
(See Fig. 1.)

IMPORTANT: If equipment is
not properly wired and protected
as recommended, the motor
guarantee is void.

NOTE: For wiring diagram for
wye delta see Addendum
S4LRC-701.

Heat Sensors and Seal Failure
Connections:
Be  sure  that  heat  sensor  wires
are  connected  in  series  with
the  starter  coil.  Connections  are
provided on the terminal strip; see
wiring diagram.

If seal failure unit is used, connect
as shown with seal failure system.
If seal failure unit is not used, the
two seal failure wires are left
open.

Do not connect

power to these lines at
any time. (See Figures 2 and 3.)

Starting System:
1. Turn H-O-A switch to Off

position, then turn on main
circuit breakers.

2. Open all discharge valves and

allow water to rise in sump pump.

3. Turn H-O-A switch to Hand

position  on  one  pump  and
notice  operation.  If  pump  is
noisy  and  vibrates,  rotation  is
wrong.  To  change  rotation
interchange  any  two  line
leads to motor on 3ø only. DO
NOT INTERCHANGE MAIN
INCOMING LINES. If duplex
system, check second pump in
the same manner.

4. Now set both H-O-A switches

to  Auto  position  and  allow
water to rise in sump until one
pump  starts.  Allow  pump  to
operate  until  the  level  drops
to turn-off point.

5. Allow sump level to rise to

start other pump. Notice run
lights on panel; pumps should

WARNING

BLACK

COIL

ON-OFF

SWITCH

THERMOSTATS

IN SERIES

WHITE