Wayne SEP5 User Manual

Page of 8
General Information
Sewage Pump Systems: 
Simplex System
A simplex system consists of one pump, 
its control switch, and one basin. It is 
used in applications where less than 
six toilets (units) are discharged into 
a basin. The simplex unit is generally 
operated with a contactor to turn 
the pump ON and OFF. The contactor 
is activated by a single pole float 
switch. The float switch is a wide-angle 
differential switch that rises with the 
liquid level and turns the pump ON. 
As the liquid level decreases, the float 
lowers and turns the pump OFF. The 
switch differential is 120º.
Sewage Pump Systems: 
Duplex System
A duplex system is used in applications 
where more than six toilets (units) are 
discharged into a basin. However, each 
pump should be sized to handle the entire 
flow in case one pump fails. The duplex 
unit is controlled by a NEMA 1 control 
panel that has an automatic alternator, 
run lights, hand-off-auto switches, and 
an alarm bell. The duplex control panel 
is supplied with three float switches. The 
floats are to be positioned so that the 
lower float turns the pumps OFF. The 
second float alternates turning first one 
pump ON and then the other pump ON. 
The third float will turn BOTH pumps ON 
in case one pump cannot handle the flow. 
The third float will also sound the alarm 
(which remains on until the system is reset).
Functionally, the liquid in the basin rises 
and trips the first float, but the pumps do 
not turn ON. As the liquid level rises, it 
trips the second float, activating one of the 
pumps. Once the liquid level recedes and 
no longer trips the second float, the pump 
will turn OFF. If the second float is tripped 
again, the other pump will turn ON.
If for some reason the liquid level 
increases past the second float and trips 
the third float, both pumps turn ON and 
trips the alarm.
Under normal circumstances, the first 
pump will handle the flow after the 
second float is tripped. In those cases, 
the liquid level will recede until it drops 
the lower float. This action turns the 
pump OFF. The next time that the liquid 
level rises, the other pump turns ON. This 
alternates the pumps; this prevents lock-
up and extends the lifer of both pumps.
Available Controls
For 115 volt only, a wide angle float 
switch can be supplied with a plug-thru 
series plug.
For 230 volt Simplex units, a NEMA 1 
Simplex Controller with a hand-off-auto 
switch and run light can be supplied. 
This is supplied with a wide-angle 
switch for automatic operation.
For 230 volt Duplex units, a NEMA 1 
control panel can be supplied with 
a hand-off-auto switches, run lights, 
pump alternator, and an alarm bell. 
This is supplied with a three float switch 
system for automatic operation.
2
Operating Instructions and Parts Manual
www.waynepumps.com
Installation
 Always 
 disconnect 
the power source before 
attempting to install, service, 
relocate or maintain the pump. 
Never touch sump pump, pump motor, 
water or discharge piping when pump is 
connected to electrical power. Never handle 
a pump or pump motor with wet hands or 
when standing on wet or damp surface or 
in water. Fatal electrical shock could occur.
Some models of this product include 
a grounded plug for quick installation 
anywhere a grounded outlet is 
accessible. Some models must be 
incorporated into the building’s  
electrical system. Models without plugs 
must be connected to a grounded 
circuit. The circuit should be equipped 
with a ground fault interrupter device.
All models without plug-in power cords 
systems must be installed by a qualified 
electrician. All models with a plug-in 
power cords system should still have a 
qualified electrician inspect the outlet 
being used to ensure proper wiring.
The control switch is a wide-angle 
system which prevents short cycling of 
the pump motor and the consequential 
problems that short cycling can cause. 
The switch can be mounted on the 
discharge pipe (just above the pump 
discharge flange). See illustrations for 
switch mounting arrangements.
Figure 1 - Simplex System
Figure 2 - Duplex System
Grounding
Blade
Grounded
Outlet
Power
Cord
Switch
Cord
TEST
RESET
Figure 3