Little Giant SPBS Manual page 2

3. Prior to beginning the installation, fill the sump until the primary sump pump activates.
Mark the primary pump "on" level on the discharge pipe. This will be used to help
locate the backup pump and float switch, relative to the primary pump. Mark the
discharge pipe at 4-3/4 and 6-3/8 inches above the "on" line.
4. After the primary pump lowers the water level to normal, disconnect all power supplied
to the sump, including the power for the primary sump pump. BE CERTAIN THE
POWER IS OFF BEFORE PROCEEDING!
5. Disconnect the discharge pipe from the primary pump. The discharge pipe should have a
check valve at or near the connection of the discharge pipe to the pump outlet. If there is
not a check valve already in the discharge pipe, one will need to be installed and should
attach directly to the primary pump discharge, as shown in Figure 3.
In order for a dual pump system, utilizing a common discharge pipe, to function there must
be a check valve in the piping between the primary pump and the backup pump.
Primary Pump Discharge Check Valve
Clapet Anti-Retour de la Pompe Primaire
Válvula de Retención de la Descarga
e la Bomba principal
Figure 3
6. Cut the discharge pipe at the 4-3/4 and 6-3/8 inch marks above the previously
measured "on" level to allow for the installation of the tee adapter. The tee adapter
provided will fit 1-1/4 and 1-1/2 inch discharge piping. If new piping is to be installed,
attach sufficient PVC or ABS discharge pipe to the primary pump check valve, such
that the PVC tee adapter for the backup pump will locate the bottom of the backup
pump a minimum of 1-inch above the top of the primary pump and the top of the
backup pump a minimum of 4-inches below the top of the sump.
7. Attach the PVC tee adapter (included) to the backup pump discharge. Rotate the
backup pump approximately 30 degrees from the vertical, as shown in Figure 4, to
prevent the pump from air-locking. Cement and tighten the joint.
PVC Tee Adaptor
Adaptateur en T en PVC
Adaptador en "T" de PVC
30°
8. Insert the tee adapter with the connected backup pump into the discharge pipe and
attach with cement. See Figure 5.
Backup Pump
Check Valve
Clapet Anti-Retour
de la Pompe Auxiliaire
Válvula de Retención
de la Bomba
de Reserva
PVC Tee Adaptor
Adaptateur en
T en PVC
Adaptador en "T"
de PVC
PVC Discharge Pipe
Conduit d'évacuation
en PVC
PVC Tubería
de Descarga de
Check Valve
Clapet Anti-Retour
Válvula de retención
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Primary Sump Pump
Pompe à Puisard Primaire
Bomba de Sumidero Principal
Backup
Sump Pump
Pompe à
puisard auxiliaire
Bomba
de sumidero
de reserva
Figure 4
4" Minimum
Minimum (4 Po)
(4 Pulgadas) Mínimo
Backup Pump Rotated 30°
Pompe auxiliaire à Un
Angle de 30°
Bomba de Reserva
Volteada 30°
1" Minimum
Minimum (1 Po)
(1 Pulgadas) Mínimo
Figure 5
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9. Attach the mechanical float switch to the discharge pipe using the provided ty-raps to hold the
float switch cable to the pipe. The tether length should be 4 inches. The float switch must not
hang lower than the inlet of the backup pump and must be at least 4 inches below the top of
the sump when the float switch is raised to its maximum vertical position.
See Figure 6. CAUTION: Move the float switch up and down (on and off positions) to make
sure there are no obstructions inside the sump or lid. It may be necessary to lower or raise the
float switch on the discharge pipe. Tether length can be reduced to 3-1/2 inches, minimum.
Discharge Pipe
Conduit D'évacuation
Tubería de Descarga
Plastic Ty-Raps
Ty-Raps en Plastique
Sujetadores de Amarre
de Plástico
Float Switch
Interrupteur à Flotteur
Interruptor de Flotador
Backup Pump
Check Valve
Clapet Anti-Retour
de la Pompe Auxiliaire
Válvula de Retención
de la Bomba de Reserva
10.Attach the ring terminals of the red and black leads from the control unit to the battery terminals,
as shown in Figure 7. Then attach the battery terminal with the red lead to the positive (+) battery
post and attach the battery terminal with the black lead to the negative (-) battery post. Make
sure all connection are tight. NOTE: If the leads are connected to the wrong terminals, the
"LEADS REVERSED" indicator light on the control unit will illuminate. If this happens, the leads
need to be reversed, such that the red lead connects to positive (+) and the black lead connects
to the negative (-). Close the battery box and secure the cover with the provided safety closure
strap.
Bolts
Boulons
Pernos
Retaining Plate
Plaque de Retenue
Placa de Retención
Battery Terminal
Cosse de la Batterie
Terminal de la Batería
11.Plug the backup pump and the float switch into the "PUMP" and "FLOAT SWITCH" sockets,
respectively, on the front of the control unit. Insert the plug of the battery charger into the
"CHARGER" socket of the control unit and plug the charger into a 115 VAC power outlet. On
the control unit, the battery lights will indicate the status of the battery. If the battery is not fully
charged, the "CHARGING" indicator light will turn on. This means that the battery charger is
supplying a trickle charge to the battery. If the battery voltage is below 11 Volts DC, the
"BATTERY LOW" indicator light and alarm system will activate and the battery charger will
attempt to bring the battery to its fully charged state (reference item no. 5 in the Operation
section of these instructions). Once the battery is fully charged, the "CHARGED" light will
turn on. The complete backup sump pump installation, including the primary sump pump, is
shown in Figure 8.
2
3-½" - 4" Tether
3-½" - 4" Longe
3-½" - 4" Trabar
Backup Pump
Rotated 30°
Pompe Auxiliaire à un
Angle de 30°
Bomba de Reserva
Volteada 30°
Figure 6
Control Unit Battery Lead
Câbles à Batterie
du Boîtier de Commande
Cable de la Batería Para
la Unidad de Control
Battery Post
Borne de la Batterie
Borne de la Batería
Figure 7