Sears 390.305001 Installation / Operation / Electrical, Pump Installation, Testing for Ground

INSTALLATION / OPERATION / ELECTRICAL

PUMP INSTALLATION

Set the pump on the bottom of the sump, making sure that it sits solidly and is level. Be sure there is enough space around the pump to allow the switch free movement as the

sump water level changes. Do not install the pump on clay, earth, or sand surface.

IA CAUTION]Risk of flooding. If a flexible discharge

hose is used, pump may move around in sump when motor starts. If it moves far enough so that the switch hits

the side of the sump, the svdtch may stick and prevent pump from starting. Make sure that pro'rip is secured so that it cannot walk around in sump.

Hose Kit No. 27909 can be used as the discharge pipe. Run the discharge pipe to the nearest sewer outlet or other point of disposal. Use the most direct route and the fewest rums and elbows possible.

Use Teflon tape to seal threads in plastic pipe. Hand tighten only.

NOTE: To avoid backflow into sump when pump shuts off, install a Check Valve, SEARS Stock No. 2789, in threaded dis- charge port of pump. A SEARS No. 2789 Check Valve is con- structed with an anti-airlock hole. If you use a SEARSNo. 2792 or any other check valve, drill a 1/8" hole in the discharge pipe just above the pump discharge port and below the Check Valve to prevent pump from airlocking.

Make sure the air-bleed hole is down inside the sltmp so that

it does not rim water on the basement floor when the pump is running.

AUTOMATIC FLOAT SWITCH

INSTALLATION AND OPERATION

Your SEARS Model 390.305001 Submersible Drainer comes

with the automatic float switch mounted on the motor hous-

ing ready for operation. Tether length is factory set at 3" (76ram). Do not change tether length. See Page 7 for verti- cal float switch instructions.

[AWARNING] Risk of electric shock. Always disconnect

the pump and switch from the electrical power source

before doing any maintenance!

Follow instructions below to install pump with factory

mounted switch:

1.Be sure automatic float can swing freely through its entire

arc without interference from pump, piping, sump wall or any other object.

2.Plug the automatic switch cord into a properly grounded

outlet (see "Electrical Connections", Page 4). Plug the pump power cord into the back of the switch plug.

3.Test the installation by adding water to the sump pit until

pump operates normally as folJows:

B.As water comes into the sump, the automatic float switch rises to an upward position and the pump starts.

C.Water will continue to be pumped until the float switch

is hanging in the downward position again, when pump vdll stop.

DO NOT ALLOW PUMP TO RUN DRY_.

Be sure to leave at least 5" (127mm) of water above pump base plate when pump stops. Running pump dry could ruin the pump and will void the warranty.

Figure 2

Switch tether is factory set at 3" ('76ram).

NOTICE: Do not change tether length.

ELECTRICAL CONNECTIONS

The Sump Pump has a 3-prong electric plug. The third prong is used to ground the pump to prevent possible fatal shock.

The third prong should never be removed. Your electrical

outlet should be the 3-prong, polarized type with an inter- nal ground.

An individual branch 15 amp electrical circuit is recom-

mended. DO NOT USE AN EXTENSION CORD.

Testing for Ground

For your safety, check your outlet for ground using an

Underwriters Laboratory Listed Circuit Analyzer (Figure 3A). A Circuit Analyzer v_fll tell you by a pattern of lights ff the

power, neutral, and ground wires are correctly connected

to your outlet. It can also be used to check other outlets in

your home. A Circuit Analyzer is available in the Sears Electrical Department.

UL Listed

Analyzer ._._ _

Outlet_

Figure 3A

665 0194

A. When sump is dry, the watertight automatic float

switch is hanging in a downward position and the pump is off.