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24 inches above the lower
turn-off con trol.
More distance between turn-on
and turn-off controls can be used,
but sew age may be come septic
and ex ces sive solids may collect
for the pump to han dle. A frequent
pumping cycle is rec om mend ed
for best op er a tion.
If an alarm system is used, this
control is usually set about 6
inches above the over ride control.
Some engineers as de scribed
pre vi ous ly prefer to have the
alarm control set below the
override control.
Making Electrical Connections:
All electrical wiring must be
in ac cor dance with local code,
and only com pe tent elec tri cians
should make the in stal la tions. A
set of prints is in clud ed for use in
making the in stal la tion. All wires
should be checked for grounds
with an ohm me ter or Megger after
the connections are made. This is
important, as one grounded wire
can cause con sid er able trouble.
IMPORTANT: If equipment is
not properly wired and protected
as rec om mend ed, the warranty
is void.
Heat Sensors and Seal Failure
Connections:
Be sure that heat sensor wires
are con nect ed in series with the
starter coil. Connections are
provided on the terminal strip.
If seal failure unit is used,
con nect as shown with seal
fail ure 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.
Pump
Operation
Starting System:
1. Turn
H-O-A
switch
Off position, then turn on
main circuit breakers.
2. Open all discharge valves
and al low water to rise in
sump pump.
3. Turn H-O-A switch to Hand
po si tion on one pump and
notice op er a tion. If pump is
noisy and vi brates, rotation
is wrong. To change rotation
interchange any two line
leads to motor on 3ø. DO
NOT IN TER CHANGE MAIN
IN COM ING
LINES.
duplex sys tem, 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 level drops to
turn-off point.
5. Allow sump level to rise to
start other pump. Notice run
lights on panel; pumps should
alternate on each suc ces sive
cycle of op er a tion.
WARRANTY IS VOID IF HEAT SENSORS ARE NOT
CONNECTED AS SHOWN (IN SERIES WITH CONTACTOR OIL)
TWO WIRE CONTROL OFFERING AUTOMATIC RESET
L1
ON-OFF
COIL
SWITCH
THREE WIRE CONTROL OFFERING AUTOMATIC RESET
L1
START
IN CERTAIN APPLICATIONS THE NEC MAY REQUIRE THREE OVERLOAD RELAYS
6. Turn both H-O-A switch es
to Auto position and allow
sump to fill to the over ride
control level.
7. Turn both switches to Auto
po si tion and both pumps
should start and operate
to
to geth er until level drops to
turn-off point.
8. Repeat this operation cycle
sev er al times before leav ing
job.
9. Check voltage when pumps
are operating and check the
amp draw of each pump.
Check amps on each wire
as sometimes a high leg
will exist. One leg can be
some what higher, 5 to 10%,
without
For excessive amp draw on
If
one leg, the power company
should be consulted.
Pump
Maintenance
As the motors are oil filled no
lu bri ca tion or other main te nance
is required.
If a seal failure unit is used,
no at ten tion is necessary as long
as the seal shows sat is fac to ry
operation.
WARNING
THERMOSTATS
IN SERIES
BLACK
THERMOSTATS
OL
OL
IN SERIES
COIL
BLACK
caus ing
trouble.
L2
WHITE
L2
WHITE
5
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