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4. Install a full-flow check valve in the discharge line horizontally to prevent back flow of liquid into the
basin.
• A ball check valve is recommended.
NOTE: If installed vertically, solids may settle in the valve and prevent it from opening at start-up.
5. Drill a 1/8- or 3/16-inch diameter relief hole in the discharge pipe below the floor line and between
the pump discharge and check valve.
NOTE: If not provided, the pump could "air lock" and will not pump water even though it will run.
6. Install a shut-off valve following the check valve to allow for maintenance.
7. Secure the pump and switch cords to the discharge line.
8. Place cover over basin.
Electrical Connections
High voltages capable of causing severe injury or death by electrical
shock are present in this unit.
• To reduce risk of electrical shock, disconnect power before working on or around the system. More than one dis-
connect switch may be required to de-energize the equipment before servicing.
• The flexible jacketed cord assembly mounted to the pump must not be modified in any way, with the exception
of shortening the cord to fit into a control panel. Any splice between the pump and the control panel must be
made within a junction box mounted outside of the basin and comply with the National Electrical Code (NEC).
Employ a licensed electrician.
1. Connect the power cord to a constant source of power matching the pump nameplate voltage.
• Connect the pump to its own circuit, with no other electric receptacles or equipment in the cir-
cuit.
• Ensure that the fuses or circuit breaker are of ample capacity in the electrical circuit.
• Plug pumps into a properly grounded receptacle.
2. Control power to the pump by either switching the power ON/OFF or by plugging and unplugging
the cord.
OPERATION TESTING
Risk of damage to pump or other equipment.
• Always check the power cord and electric receptacle for damage or corrosion before each use. The power cord on
these units cannot be replaced. If damaged, replace the pump.
• Do not let the unit run dry (without liquid). It is designed to be cooled by pumping fluid. The seal may be dam-
aged and the motor may fail if the pump is allowed to run dry.
To test pump operation independently of the float switch cord, install the pump and plug the pump
cord directly into the outlet.
1. Plug the pump and piggyback cord assembly into a grounded receptacle.
• Ensure the gate valve in the discharge line is open.
2. Run water into the basin.
OPERATION TESTING
Electrical Connections
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