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CONTENTS

Safety ...................................................................................2

Pump Performance/General Information ...........................3

Before You Start/Tools/Materials ........................................4

Installation 

Piping ....................................................................4-5, 8-12

Electrical ........................................................................6-8

Helpful Hints.................................................................11-12

Parts ..............................................................................13-15

INTRODUCTION

Please take a few minutes to read our instructions before in-
stalling your submersible pump. It will help to assure per-
fect installation and help you avoid needless service
expenses.

Carefully read and follow all safety instructions in this man-
ual or on pump. 

This is the safety alert symbol. When you see this sym-

bol on your pump or in this manual, look for one of

the following signal words and be alert to the potential for
personal injury! 

warns about hazards that 

will

cause serious

personal injury, death or major property damage if ignored.

warns about hazards that 

can

cause serious

personal injury, death or major property damage if ignored.

warns about hazards that 

will

or 

can

cause

minor personal in jury or property damage if ignored. 

The word 

NOTICE

indicates special instructions which are

important but not related to hazards. 

To avoid risk of serious bodily injury and property
damage, read safety instructions carefully before in-
stalling pump. 

1.

Under certain conditions, submersible

pumps can develop extremely high pres-
sure. Install a pressure relief valve capable

of passing entire pump flow at 75 PSI (517kPa).

Do not allow pump, pressure tank, piping, or

any other system component containing water

to freeze. Freezing may damage system, leading to in-
jury or flooding. Allowing pump or system compo-

nents to freeze will void warranty.

2. Follow local and/or national plumbing and electrical

codes when installing pump. 

3. Keep well covered while installing pump to prevent

leaves and other foreign material from falling into well,
contaminating the well and possibly damaging the pump. 

4. Protect pump and piping system from freezing. Allowing

pump or water system to freeze could severely damage
pump and voids warranty. 

5. To protect system against over-pressure, install a pressure

relief valve (Stock No. 27220).

6. With a new well, test well water for purity before using.

Consult your local Health Department for procedure. 

Hazardous voltage. Can shock, burn,

cause death, or start fires.

7. Disconnect electrical power source before installing or

working on pump. 

8. Use pump only in a well application. 
9. Correct fusing, wiring and grounding are essential to

proper operation. See Page 6 for electrical instructions. 

10. Line voltage and frequency listed on motor nameplate

must agree with line voltage and frequency of electrical
power supply. 

11. Use of fuses or wire smaller than size recommended in

owner's manual can cause overheating, possible  fires,
and will void warranty. 

2

FULL ONE YEAR WARRANTY ON SUBMERSIBLE PUMPS

For one year from the date of purchase, when pump is installed and maintained according to our instructions and not subjected
to sand or abrasive damage, Sears will furnish and install a new pump, free of charge, if the pump is defective in materials or work-
manship. During the same period, Sears will repair the control center, free of charge, if defective in material or workmanship.

LIMITED WARRANTY ON SUBMERSIBLE PUMPS (NOT INCLUDING CONTROLS)

After one year and through three years from the date of purchase, Sears will furnish, free of charge, a replacement pump (not in-
cluding control center and fittings) if the pump is defective in material or workmanship. You pay for installation.

LIMITATION OF LIABILITY

SEARS WILL NOT BE LIABLE FOR LOSS OR DAMAGE TO PROPERTY OR ANY INCIDENTAL OR CONSEQUENTIAL LOSS OR EX-
PENSE FROM PROPERTY DAMAGE DUE DIRECTLY OR INDIRECTLY FROM THE USE OF THIS PRODUCT.

Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion
may not apply to you.

WARRANTY SERVICE IS AVAILABLE BY SIMPLY CONTACTING THE NEAREST SEARS SERVICE CENTER/DEPARTMENT IN THE
UNITED STATES. 

This warranty applies only while the product is in the United States.

This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

Sears, Roebuck and Co., Dept. 817 WA, Hoffman Estates, IL 60179

RULES FOR SAFE INSTALLATION AND OPERATION

Summary of Contents for 390.284020

Page 1: ...270 2 WIRE SUBMERSIBLE PUMP MODEL Nos 390 285510 390 285520 390 285530 CAUTION Read and Follow All Safety Rules and Operating Instructions Before First Use of This Product Save This Manual For Future...

Page 2: ...relief valve Stock No 27220 6 With a new well test well water for purity before using Consult your local Health Department for procedure Hazardous voltage Can shock burn cause death or start fires 7...

Page 3: ...4 7 9 390 284030 3 4 230 8 40 13 5 12 7 11 9 10 7 9 4 7 9 390 284040 1 230 10 40 13 5 12 9 11 9 10 9 9 8 7 4 390 284050 1 1 2 230 14 40 13 5 12 9 11 7 10 4 8 9 7 1 High Capacity Pumps with 1 1 4 Disch...

Page 4: ...pe Well Seal Purchase Locally Conduit or Sleeve Cable Splices Plastic Pipe Adapter Plastic Pipe Adapter Pump Check Valve Torque Arrester Purchase Locally Centering Guide 1178 0794 Plastic pipe adapter...

Page 5: ...e Air and Standard The Air Volume Control AVC maintains the cushion of air in Standard Tanks No Air Volume Control is needed with a Captive Air Tank Air Volume Control A device mounted on a standard t...

Page 6: ...oltage and frequency of the electrical power supply If in doubt check with your electric power company or a licensed electrician Check Fusing and Wiring Chart before connecting wires from pressure swi...

Page 7: ...lder with a non acid soldering paste to solder the joint After splicing center the body of the insulator over the splice Slide the neoprene sleeves down into the recesses in the body as far as they wi...

Page 8: ...e distance to the water level in the well are not known See page 4 The pump should not be set closer than 5 feet from the bottom of the well and should be submerged 15 to 20 feet below the draw down w...

Page 9: ...in installation draw ings Figure 1 Page 4 Using teflon tape on all male threads Assemble this unit to the plastic pipe in same manner as outlined in Step 6 Assembly may slip through well seal Install...

Page 10: ...om of the well 6 Develop the well See Well Development and Pump Test below 7 Refer to Typical Pump Installation Drawings for proper method of piping depending on the type of pres sure tank used Well d...

Page 11: ...ve to restrict flow until discharge rate does not exceed well recovery rate possibly seriously damaging pump To prevent possibility of dangerous high pressure install a relief valve in discharge pipe...

Page 12: ...color coding of drop cable Pressure switch fails A Voltage too low motor will run slowly A Have a competent electrician verify voltage at electrical disconnect box 2 wire or to shut off pump causing l...

Page 13: ...4270 Description 1 U17 1172 U17 1173 U17 1174 U17 1174 U17 1174 U17 1175 Start Capacitor 2 U17 1184 U17 1185 U17 1186 Solid State Switch 3 U17 1201 U17 1201 U17 1201 Terminal Strip 4 U17 1190 U17 1191...

Page 14: ...U36 197SS U36 197SS U36 197SS Nut 5 16 Hex 4 Required 3 U43 115SS U43 115SS U43 115SS U43 115SS U43 115SS U43 115SS Lockwasher 5 16 4 Required 4 P3 510P P3 510P P3 510P P3 511P P3 512P P3 513P Lead Co...

Page 15: ...U43 115SS Lockwasher 5 16 4 Required 4 P3 517P P3 518P P3 519P P3 546SS Lead Cover 5 U30 840SS U30 840SS U30 840SS U30 840SS Screw 8 32x5 16 4 Required 6 U30 927SS U30 927SS U30 927SS U30 927SS Screw...

Page 16: ...250 390 284130 390 284260 390 284140 390 284270 2 WIRE SUBMERSIBLE PUMP MODEL Nos 390 285510 390 285520 390 285530 The model number of your Submersible Pump will be found on a plate attached to the pu...

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