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5

Electrical

WARNiNG - Reduced risk of electric shock during operation of this pump requires the provision of acceptable 

grounding:

  a.  When the means of connection to the supply-connection box is other than grounded metal conduit, ground the pump 

back to the service by connecting a copper conductor, at least the size of the circuit conductors supplying the pump, to 

the grounding screw provided within the wiring compartment.

  b.  This pump is provided with a means for grounding. To reduce the risk of electric shock from contact with adjacent 

metal parts, bond supply box to the pump-motor-grounding means and to all metal parts accessible at the well head.

1.   

THiS PuMP MuST Be iNSTALLeD BY QuALiFieD PeRSoNNeL. 

Check local electrical and building codes before 

installation. 

2.    The Jet Pump Motors are pre-configured at the factory for 115VAC, 60 Hz operation. If 230V operation is required, the 

Jet Pump Motor can be easily switched from 115 to 230 VAC, 60 Hz. Refer to the Motor Label at the motor. If the motor 

is converted from a 230 VAC to 115 VAC, an electrician should insure the electrical branch circuit can handle the higher 

currents. The Voltage Selector should be reviewed to insure the voltage selected at the motor matches the voltage 

supplied.

   Check the pump label for the proper voltage required. Do not connect to voltage other than that shown on the label. 

Cross check the power supply voltage with a voltmeter and the motor selector knob.

3.    A separate branch circuit is required. The pump should be connected to a separate electrical circuit directly for the main 

electrical service panel. Do not use an extension cord.

4.    It is mandatory that a permanent ground connection be made from the pump motor to the grounding bar at the service 

panel. Do not connect the pump motor to a power supply until the pump is permanently grounded.

   The ground wire should be copper and at least as large as the power supply wire size. The power supply wire should be 

copper.

5.    Recheck the voltage after the pump motor has started. There should be some voltage drop, but voltage drop should be 

no more than 5% of the nominal voltage.

 

CAuTioN: 

Failure to ground this unit properly may result in severe electrical shock.

The motor has been factory connected for 115V. Refer to motor nameplate and instruction sheet for reconfiguration 

to 230V. use copper conductors only for field wiring connections.

CAuTioN: This pump has been evaluated for use with water only.

WARNiNG: To reduce the risk of electric shock, see instruction manual for proper installation procedure. Risk of

electric shock – This pump has not been investigated for use in swimming pool areas.

Wire Selection Guide

NEC allows a 5% voltage drop between the Service 

Panel and the Pump. The table below reflects the 

Maximum Wire length to comply with NEC.

Wiring at Pump

Remove the plate from the motor compartment and wire the motor as shown below.

Pump 

Model

Voltage Name Plate 

Amps

Max. Wire Length in Feet, AWG Size

#14

#12

#10

#8

DCJ 500 

(1/2 HP)

115

11.6

103

163

260

413

230

5.8

411

653

1,038

1,651

DCJ 750 

(3/4 HP)

115

12.8

93

148

235

379

230

6.5

367

582

926

1,473

LINE 1

BLUE

WHITE

LINE 2

115V 60Hz

BLUE

WHITE

LINE 1

LINE 2

230V 60Hz

Summary of Contents for Duro Pumps DCJ500

Page 1: ...pump body or for deep well installation for water level up to 80 feet with 1 1 4 pipes and injector down in the well A pressure switch and pressure gauge are standard features The pump starts when th...

Page 2: ...and void the warranty 10 Do not run the pump dry or damage will occur 11 The unit should be connected to a grounded circuit equipped with a ground fault interrupter device 12 Before installing the pu...

Page 3: ...setting is 30 psi cut in and 50 psi cut out Wells A new well should be pumped clear of sand before installing the pump Sand will damage the pumping parts and seal The drawdown level of the well shoul...

Page 4: ...ating Driven Well or Sandpoint Well 1 Drive the point several feet below the water table Note A packer type foot valve can be installed in the well This type of foot valve allows the well to be filled...

Page 5: ...down in the well This pump is designed for pumping potable water in applications where the water level is up to 80 feet Drilled Well 1 Assemble the foot valve to the ejector The short tube in the eje...

Page 6: ...d The pump should be connected to a separate electrical circuit directly for the main electrical service panel Do not use an extension cord 4 It is mandatory that a permanent ground connection be made...

Page 7: ...oJet Convertible Deep Well Jet Pumps When using DuroJet pumps on deep well applications longer tube for ejector assembly is required WaterGroup s part number for the long tube is 302922 1 Remove prime...

Page 8: ...pen a faucet nearest the tank and allow all water to drain from the tank 2 Measure the tank precharge at the valve stem using a tire gauge 3 If necessary adjust the precharge with an air pump to 2 PSI...

Page 9: ...750 1 10 302911 PLUG DRAIN PRIME DCJ500 750 1 4 18NPT 2 11 302912 O RING DIFFUSER DCJ500 750 OD 34 5 3 5 1 12 302913 O RING HOUSING DCJ500 750 OD 154 5 3 5 1 13 302914 ADAPTER PRESSURE SWITCH DCJ500 7...

Page 10: ...12 2 6 1 0 5 60 0 15 17 3 11 8 5 9 0 5 60 0 16 16 5 11 4 5 7 0 4 60 0 18 15 2 11 1 5 5 0 1 60 0 20 14 7 10 5 5 1 57 0 22 13 4 9 8 4 9 55 0 24 12 9 9 3 4 5 53 0 25 11 5 8 1 4 4 53 0 26 11 1 7 9 4 1 28...

Page 11: ...and impeller b Check water level in well to see actual pumping level Measure vertical distance to pump and compare to tolerance for pump type c See No 2c above d Compare minimum pressure on which capa...

Page 12: ...ill be made or a replacement pump or part will be supplied free of charge The serial number of the pump must be supplied This warranty does not obligate the manufacturer to bear the cost of field labo...

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