Franklin Water Pump owner manual G. Pump Installation-Performance, Electrical Installation & Tests

ELECTRICAL INSTALLATION & TESTS

Employ a competent electrician to do the wiring in accordance with local electrical codes. Conventional overhead or underground installation is satisfactory for the electrical power transmission to the Well Head.

Check that the power supply corresponds with that shown on the name plates of the motor and control box. NOTE; every installation requires a fused disconnect switch or circuit breaker.

A SINGLE-PHASE unit includes a control box incorporating overload relays, but require a magnetic starter for automatic operation.

A THREE-PHASE unit requires a magnetic starter with three-leg protection having QUICK-TRIP Ambient compensated overload relays.

Note; the Warranty is void if incorrect overload relays are used.

Mount the control equipment vertically on a post or wall, and protect it from direct sunlight and extremes of temperature. Make the connections to the control equipment in accordance with the wiring diagram to avoid damage to the motor.

Preliminary Electrical Test Pump Above Ground

After splicing the motor leads to the power cable, use a 500-volt megohm meter (megger) to test the insulation. Connect the ground lead of the megger to the motor frame, and the line leads to the ends of the cable conductors. Turn the crank of the megger for 5 or 10 seconds, and check that the needle shows a value of at least 50 megohms. Remove the megger and wet down the motor leads and power cable with a hose or bucket. Reconnect the megger and check the resistance again. Should the value be appreciably less than before, it indicates damaged insulation. Locate the damage either by visual inspection or by checking the resistance as each successive section of cable are immersed in water. If the cable is new, it is probably unnecessary to check it thoroughly from above the splice down to the motor.

G. PUMP INSTALLATION-PERFORMANCE

Should the cable get damaged, either cut out the defective length and splice the ends, or repair the damage, as described in the section on cable Repair(F).

INSTALLATION

Thread the first length of riser pipe into the pump discharge and raise the pump and pipe into a vertical position over the well. Being careful neither to drag the pump along the ground, nor let it strike other objects getting it into place over the well.

Lower the pump about 10 ft. into the well and fasten the cable to the riser pipe to prevent tangling and damage. Use electrical tape for light cable and stainless steel bands for heavy cable.

Continue to add lengths in the same manner until the required pump setting is reached. Secure the cable to the riser pipe at regular intervals with tape or bands.

*CAUTION*

TAKE GREAT CARE TO PREVENT DAMAGE TO

THE CABLE DURING INSTALLATION.

Use an Ohmmeter or megger to make continuity and insulation checks on the cable at intervals of 10 to 20 ft. as the pump is lowered. This will locate any fault in the cable.

Where a bleeder type air charging kit is used with a hydro pneumatic tank, install the tee and bleeder valve before adding the last length of riser pipe. This will place the bleeder valve about 20 ft. below the well head.

Place the sanitary well seal, surface plate. Or other adapter on the last length of riser pipe and pass the submersible cable through the opening provided. Then attach the discharge tee or elbow to the riser pipe. Lower the riser pipe to its final position and tighten the well seal or other device to support the installation in the well.

As soon as the splice joint is submerged in the water, take a resistance reading between the power cable conductors and ground to assure that the insulation and the cable or the splice was not damaged during installation process.

Initial Start-up & Performance Check

Make final continuity and insulation (0 megohms or higher) checks before connecting the cable to the control equipment. Check that the supply voltage is within10% of the motor rating. It is preferable for the supply voltage to be on the high side. Check all phases of a three-phase supply.

Check the pump and well performance before making the final connection to the discharge system.

1- Install a pressure gage and gate valve on the end of the pipe. Close the valve.

2- Start the pump, check the pressure developed against the closed valve. If the pressure is substantially less than expected (don’t forget to allow for the depth to the water level), the pump may be running backward. To change the ratation, refer to the section “Preliminary Electrical Test Pump Above Ground”.

3- Open the gate valve to give a low flow until you are certain that the well will not yield sand. Open the gate valve gradually to give full flow.

4- Use a hook-on ammeter to read the current, which should approximate the full-load current given on the motor nameplate, but must not exceed the service factor rating of the motor. The service factor varies with the make and the horsepower of the motor. Consult the factory if insufficient information is given about Service Factor performance.

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