Pentair SC Series User manual

General Information and Precautions
Submersible pumps are precision equipment designed for years of
trouble free service, provided that they are properly installed and maintained.
The pump package includes pump, motor, motor tail lead, and cable splicing
kit on all units. A control box (which contains the start capacitor(s) and thermal
overload relay) is shipped as standard equipment on all three wire, single phase
units. The two wire, single phase units do not require a control box as the start
capacitor and thermal overload is built into the motor. Magnetic starters, equipped
with the correct quick trip thermal overloads, are required for three phase units.
Properly grounded lightning arrestors are recommended on all installations that
do not have built-in lightning protection in the motor.
WARNINGS:
1.
working in accordance with National and Local Electrical Codes. Failure
to comply with these codes could result in serious injury or death from
electrical shock, or cause serious damage to the pump unit.
2. The bore must be clean and straight. Submersible pumps are designed
to allow the passage of a small amount of sand; however, pumping sand
for a prolonged period will shorten the life of any pump.
3. The pump should be installed at least 3 metres (10 feet) above the
bottom of the bore to prevent sediment from covering the motor, which
could result in overheating and damage to the motor windings. Where
possible, the pump should be installed at least 4.5 metres (15 feet)
below the lowest pumping water level. A motor cooling shroud is
recommended.
4. Never support the weight of the pump on the electrical cable. Support
it with the rising main or an auxiliary rope during installation. Throughout
installation, take care not to damage the insulation on the cable.
Instructions for Coupling Pump End Assembly to Motor (if not assembled)
shaft protrusion. To assemble the pump and motor:
1. Make sure that the pump and motor rotors rotate freely.
2. Carefully clean the surfaces to be joined.
3. For motors with separate leads clean and dry any moisture from both the cavity on the motor and the rubber end
of the electrical cable connection. Insert the cable connection (using no lubrication) and tighten with a torque wrench
set at 27Nm (20 ft.lbs).
4. Align cable with cable protector and push the motor lead through the suction inlet and under the cable guard. Do
not slacken nuts on pump straps (all stainless steel SC Series units).
5. Couple the pump to the motor making sure that the motor shaft freely enters the splined slot on pump coupling.
A layer of waterproof grease should be applied to the coupling splines to help with this operation and to protect
against wear caused by any abrasive particles remaining.
6. Tighten the four motor bolts with a torque wrench set at 18Nm (14 ft.lbs).
“SC” Series All Stainless Steel
“SD” Composite/Stainless Steel
Pre-Installation Tests
Complete as many pr e-installation tests as possible prior to taking the pump to the installation site.
1. Be car eful not to damage the motor, pump, and motor lead. Visually inspect for possible damage. Check the lead
for abrasions or cuts. Make certain the check valve operates freely.
2. Check the motor, pump, and control equipment to be certain they are matched. If using a three phase motor, check
quick trip thermal overloads in the magnetic starter against motor requir
3. Mount the pump end on the motor, if needed (see previous section). Splice the cable to the furnished lead with
the supplied splice kit, following the splice kit instructions. Use only the size cable recommended in the Cable
Selection Table (Page 6) to assure adequate voltage at the motor.
Installation and
Operation Manual
Page 1
IMPORTANT
For future reference, record details
of your pump unit here.
Date installed ……/ ……/ ……
Model: ......................
Serial No: .................
Submersible Pump
Q. …... m3/hr (@BEP)
H. …......… m (@BEP)
P. ……… kW ...….…. Hz
RPM ............ Max H .......... m
A division of Pentair Flow Control Pty Ltd
4 Inch (100mm) Submersible Pumps

4. Remove cover fr om control box on magnetic starter. Do
not connect line voltage at this time. Connect cable to
control box. Make certain each lead is connected to the
proper terminal as indicated in the instruction on the control
box (also refer to the section on Wiring the Pump).
5. Submerge the pump in clean water in a test tank. Make
certain that the water is at least ve inches above the inlet
screen.
6. Make certain mains isolation switch is o. Connect line
from disconnect switch to control box. Turn on power at
mains isolating switch. Pump should start immediately.
Do not run pump at wide open discharge in test tank.
Throttle pump down with a gate valve.
7. As soon as the unit is running, line current reading should
be taken and matched against those in the Cable Selection
Table. Run the pump only a few minutes in the test tank.
Stop. After one minute, start pump again.
8. If pump operates satisfactorily, turn o power at the mains
isolation switch. Disconnect power supply from the control
box and the control box from the pump cable.
9. Replace the pump in the shipping carton to protect it during
transportation to the bore site.
Installation in the Bore
1. Recheck the system's electrical ratings. If the cable has
been spliced, make certain that the colour code has been
followed.
2. If there is a possibility the water level will drop enough to
let air into the pump, a low water level electrode protective
relay must be tted to the starter. This can be either a manual
reset type (only two electrodes required) or an automatic
reset type (three electrodes required).
3. Attach rst section of pipe to pump and tighten. If plastic
riser is being used, nylon or stainless steel safety cable
must be attached to support the pump.
4. Connect a pipe vice or collar clamp rmly to the upper end
of the pipe to keep it from slipping and dropping into the
bore. Lower the pipe column into the bore. Do not lower
the unit by its electric cable. A nylon or stainless steel safety
rope may be attached to the pump to aid in lowering it.
NOTE : Where the riser pipe exceeds 100 metres, a non-
return valve should be installed to limit damage caused by
water hammer. This extra valve should be positioned halfway
up the riser pipe, and must always be incorporated if the
pump is being used to supply a pressurised system.
5. Lower the pipe into the well as each section is added.
Make sure that the pump is installed at least 3 metres (10
feet) above the bottom of the bore to prevent sediment from
covering the motor.
NOTE:Motor must be set above level at which water enters
the bore, or above bottom of casing or top of bore screen.
If this is not possible, a “cooling shroud” must be used.
Tape or clamp the electrical cable to the pipe at 3 metre
(10 feet) intervals, being careful not to cut the insulation.
The cable can be checked for insulation breaks as it is
attached to the pipe. Any damaged spots should be cleaned
carefully and repaired using self-amalgamating waterproof
tape or adhesive lined heatshrink tubing. Do not drag cable
over the bore casing or allow it to become pinched. At the
top of the last length of pipe, install a tee, which can be
used for lifting when adjusting the bore seal and when
making nal adjustment of the pump setting. A hose cock
can be installed temporarily for testing bore and pump
capacity.
NOTE : For the motor to function correctly, a specic minimum
ow speed of water over the outside of the motor is
necessary.
(Refer to graph on page 8).
1 Submersible Pump 2 Contr ol Panel
3 Gate Valve 4 Pressure Gauge
5 Non-return Valve 6 Cut-o Device
7 Bore Screen 8 Bottom of Bore
9 Submersible Cable 10 Cable Clips
11 Bore Cap 12 Cooling Shroud
A. Water Level
B. Distance between Water Level & Pump
Outlet - Min. 4.5 metres
C. Distance from Bottom of Bore to Bottom
of Motor - Min. 3 metres
D. Distance between Motor and Bore
Screen (if applic.) - Min. 1 metre
“SC/SD” SERIES 4 Inch Submersible Pump Installation and Operation Manual
10
1
12
8
11
9
5
3
4
2
A
D
B
7
6
C
Page 2

Wiring the Pump - Single Phase
a. Three wire installation for FRANKLIN 0.75kW motor and 1.5kW PSC motor.
1. Make sure power is o at Mains Isolation Switch.
2. Connect the colour coded drop cable to the control
box terminals, making sure the WHITE wire is
connected to the terminal marked "BLK" (Start), the
RED wire to the terminal marked "BRN" (Common),
and the BLUE wire to the terminal marked "BLU"
(Main).
3. If using an Automatic Control Switch (eg. Pressure
Switch), connect the leads from the L and N terminals
in the control box to the Load side of the Automatic
Control Switch, and then connect the leads from the
Line side of the Automatic Control Switch to the two
terminals in the Mains Isolation Switch.
4. If not using an Automatic Control Switch, connect
the leads from the L and N terminals to the two
terminals in the Mains Isolation Switch.
5. Connect Ground Wire from Control Box and motor
drop cable to Steel Bore Casing or steel ground
stake.
6. Replace cover on the Control Box.
b. Three wire installation for FRANKLIN 1.1kW, 1.5kW, 2.2kW and 3.7kW motors.
1. Make sure power is o at Mains Isolation Switch.
2. Connect the colour coded drop cable to the control
box terminals, making sure the WHITE wire is
connected to the terminal marked "BLK" (Start), the
RED wire to the terminal marked "BRN" (Common),
and the BLUE wire to the terminal marked "BLU"
(Main).
3. If using an Automatic Control Switch (eg. Pressure
Switch), connect the leads from the L and N terminals
in the control box to the Load side of the Automatic
Control Switch, and then connect the leads from the
Line side of the Automatic Control Switch to the two
terminals in the Mains Isolation Switch.
4. If not using an Automatic Control Switch, connect
the leads from the L and N terminals to the two
terminals in the Mains Isolation Switch.
5. Connect Ground Wire from Control Box and motor
drop cable to Steel Bore Casing or steel ground
stake.
6. Replace cover on the Control Box.
c. Two wire installation for FRANKLIN 0.37kW, 0.55kW, 0.75kW
and 1.1kW motors.
1. Make sure power is o at Mains Isolation Switch.
2. If using an Automatic Control Switch (eg. Pressure Switch),
connect the two leads from the motor drop cable to the Load
side of the Automatic Control Switch, and then connect the
leads from the Line side of the Automatic Control Switch to
the two terminals in the Mains Isolation Switch.
3. If not using an Automatic Control Switch, connect the two leads
from the motor cable to the two terminals in the Mains Isolation
Switch.
4. Connect Ground Wire from motor drop cable to Steel Bore
Casing or steel ground stake .
d. Overload Protection for FRANKLIN Two and Three Wire Single Phase Motors
1. Two wire motors (0.37 kW to 1.1 kW) have inbuilt automatically resetting overload protection in the motor.
2. Three wire motors (0.75 kW to 3.7 kW) have manual reset overload protection built into the correct Franklin Control
Box.
“SC/SD” SERIES 4 Inch Submersible Pump Installation and Operation Manual
Page 3
LINE LOAD
Automatic Control
Switch (when used)
LINE
Motor Ground Wire
to Steel Riser Pipe
DROP
CABLE
Motor
MOTOR
TAIL
LEAD
A N
Red Black
Black Black
Yellow / Green Yellow / Green
Mains
Isolation
Switch
LINE LOAD
L N
Automatic Control
Switch (when used)
LINE
Control Box
Control Box and
Motor Ground Wire
to Steel Riser Pipe
Yellow/
Green
White
Red
Yellow/
Green
Black
Brown
DROP
CABLE
MOTOR
TAIL LEAD
Motor
N A
Blue Blue
Mains
Isolation
Switch
B
L
K
B
R
N
B
L
U
LINE LOAD
L N
B
L
K
Automatic Control
Switch (when used)
LINE
Mains
Isolation
Switch
Control Box
Control Box and
Motor Ground Wire
to Steel Riser Pipe
Yellow/
Green
Blue
Red
White
Yellow/
Green
Blue
Brown
Black
DROP
CABLE
Motor
N A
MOTOR
TAIL LEAD
B
R
N
B
L
U
All electrical connections must
be performed by qualied
personnel working in
accor dance with National and
Local Electrical Codes.

Wiring the Pump - Single Phase
e. Thr ee wire installation for COVERCO 0.37kW, 0.55kW, 0.75kW,
1.1kW, 1.5kW, 2.2kW, and 3.7kW motors. (CURRENT MODELS)
1. Make sure power is o at Mains Isolation Switch.
2. Connect the colour coded drop cable to the control
box terminals, making sure the RED wire is connected
to the terminal marked "6" (Start), the WHITE wire
to the terminal marked "4" (Common), and the BLUE
wire to the terminal marked "5" (Main).
3. If using an Automatic Control Switch (eg. Pressure
Switch), connect the leads from the L and N terminals
in the control box to the Load side of the Automatic
Control Switch, and then connect the leads from
the Line side of the Automatic Control Switch to the
two terminals in the Mains Isolation Switch.
4. If not using an Automatic Control Switch, connect
the leads from the L and N terminals to the two
terminals in the Mains Isolation Switch.
5. Connect Ground Wire from Control Box and motor
drop cable to Steel Well Casing or steel ground
stake.
6. Replace cover on the Control Box.
f. Three wire installation for COVERCO 1.5kW, 2.2kW and 3.7kW motors (OLDER MODELS ONLY).
1. Make sure power is o at Mains Isolation Switch.
2. Connect the colour coded drop cable to the control
box terminals, making sure the RED wire is
connected to the terminal marked "5" (Start), the
WHITE wire to the terminal marked "3" (Common),
and the BLUE wire to the terminal marked "4" (Main).
3. If using an Automatic Control Switch (eg. Pressure
Switch), connect the leads from the L andN terminals
in the control box to the Load side of the Automatic
Control Switch, and then connect the leads from
the Line side of the Automatic Control Switch to
the two terminals in the Mains Isolation Switch.
4. If not using an Automatic Control Switch, connect
the leads from the L and N terminals to the two
terminals in the Mains Isolation Switch.
5. Connect Ground Wire from Control Box and motor
drop cable to Steel Well Casing or steel ground
stake.
6. Replace cover on the Control Box.
Wiring the Pump - Three Phase
Three wire installation.
1. Make sure the power is turned o at Mains Isolation Switch.
2. Connect the three wires of the motor drop cable to the LOAD terminals in the magnetic starter.
3. The Automatic Control Switch - ie. Pressure Switch, (if used), will be wired to the Magnetic Starter to serve as a
pilot control. See instructions with the magnetic starter. Use correct size quick trip thermal overloads.
4. Connect three leads from the LINE terminals of the three pole magnetic starter to the fused disconnect switch.
Be sure correct size fuses are used to give proper motor protection.
5. Properly grounded lightning arrestors are RECOMMENDED.
6. When power is applied, check for correct rotation. If motor is running in the wrong direction, the pump capacity
will be below rated capacity. With the pump in the bore, rotation can be checked one of two ways:
“SC/SD” SERIES 4 Inch Submersible Pump Installation and Operation Manual
Page 4
LINE LOAD
L N 4 5 6
Automatic Control
Switch (when used)
LINE
Control Box
Control Box and
Motor Ground Wire
to Steel Riser Pipe
Green
Blue
Red
White
Yellow/
Green
Blue
Brown
Black
DROP
CABLE
MOTOR
TAIL LEAD
Motor
N A
Yellow/
Mains
Isolation
Switch
LINE LOAD
Automatic Control
Switch (when used)
LINE
Control Box
Control Box and
Motor Ground Wire
to Steel Riser Pipe
Yellow/
Green
Red
White
Green
Brown
Black
DROP
CABLE
MOTOR
TAIL LEAD
Motor
N A
Blue Blue
L N 3 4 5
Yellow/
Mains
Isolation
Switch
All electrical connections must
be performed by qualied
personnel working in
accor dance with National and
Local Electrical Codes.

a: Dischar ge method - Connect the leads to the
magnetic starter as in Step 2. Run the pump open
discharge. Change any two leads and run the pump
at open discharge again. The larger quantity of
water indicates the correct rotation.
b: Pressure method - Connect the leads to the magnetic
starter as in Step 2. Run unit with closed discharge
and note the maximum pressure reading. Change
any two leads and run pump with closed discharge
again. Note maximum pressure reading. The higher
pressure reading indicates the correct rotation.
7. After the pump has been installed and run,
subsequent electrical work near the installation may
change the rotation. Whenever a three phase pump
does not seem to be performing properly, the rotation
should be checked before the unit is pulled.
Lightning Arrestors
It is highly recommended that lightning arrestors
be installed in the starter or control box to ground
voltage surges. Lightning arrestors should be
grounded to metal riser pipe with ground clamp,
or to other suitable ground if plastic drop pipe is
used. All single phase Franklin motors have built-
in lightning protection and do not need an additional
arrestor. Three phase units require two arrestors,
and should be connected to the control as shown
at right.
If a lightning arrestor has already been installed at
the lead-in power lines and is within 15 metres (50
feet) of the pump installation, additional arrestors
are not necessary. Arrestors should be installed at
the control on overhead supply lines longer than
15 metres (50 feet). If the supply line to the control
is underground, an arrestor is not needed at the control.
System Connections & Operation
1. Thread the cable through the hole in the bore cap. Be careful not to let the cable become pinched or damaged.
Make certain the bore cap is vented. Ample slack should be left in the cable below the bore cap and in the trench
(if the cable is buried underground) to allow for expansion and contraction.
2. Install a shut-o (gate) valve and a union to facilitate installation and servicing. Use of a gate valve also permits
throttling for a weak supply.
3. Start the pump with the gate valve slightly open. If rotation is incorrect, the gauge will show the pressure much
lower than it should be. A single phase motor always rotates in the correct direction. To reverse rotation in a 3-
phase motor, swap over two of the phase wires.
4. Do not let the pump run in the wrong direction for more than 4 minutes. With the pump working, gradually open
the delivery gate valve using an ammeter to check the current does not exceed that shown on the plate. If
necessary, lower the amps by reducing delivery through the gate valve and adjusting the protection relay settings
accordingly. The overload settings should never exceed the those on the plate.
5. With the motor running, check that the power supply voltage is ±5% of the nominal supply.
Final Checks
1. Make certain all connections are properly made.
2. Turn on current at mains isolation switch. Pump should start and water should ow within a few seconds,
depending on depth of setting of pump.
3. Check the amperage with an ammeter and the voltage with a voltmeter. Compare the readings with pre-installation
tests and limits shown in Cable Selection Table.
4. It is also recommended that a resistance reading be made. Power supply must be disconnected to make resistance
readings. These tests will determine if there is damage to the cable when installing or if motor windings are down
to earth.
5. Also check line voltage at the control box or magnetic starter during start and run conditions.
“SC/SD” SERIES 4 Inch Submersible Pump Installation and Operation Manual
Page 5
L1 L2 L3
LIGHTNING
ARRESTOR
T1 T2 T3
MAGNETIC STARTER
GROUND
WIRE
GROUND CLAMP
STEEL RISER PIPE OR STEEL
GROUND STAKE
LIGHTNING
ARRESTOR
TO MOTOR
SCHEMATIC WIRING DIAGRAM FOR MAGNETIC
STARTER. HEAVY LINES INDICATE CONNECTIONS
TO BE MADE BY INSTALLER
L2
L1 L2 L3
GROUND
L1 L3
PUMP
MOTOR
T2
T1 T3 O/L
M
HOLD.
COIL
M
PRESSURE
SWITCH
MAINS
ISOLATION
SWITCH OR
CIRCUIT
BREAKER
MAGNETIC
STARTER
LIGHTNING
ARRESTORS
All electrical connections must be performed by
qualied personnel working in accor dance with
National and Local Electrical Codes.

CABLE SELECTION 4 INCH FRANKLIN SUBMERSIBLE MOTORS
SINGLE PHASE MOTOR - Maximum cable length metres (Motor to service entrance).
2 Wire motors - Cable spec – 2 core with earth, P.V.C. insulated, P.V.C. sheathed, copper conductors.
CABLE SIZE SQ.MM
Motor kW F.L.A. 1.5mm 22.5mm 24mm26mm210mm 216mm 225mm 2
0.37 kW 4.1 101 170 267 400 670 — —
0.55 kW 6.5 63 106 167 245 420 660 —
0.75 kW 7.6 53 89 140 210 350 560 960
1.1 kW 10.8 38 63 100 150 250 400 680
SINGLE PHASE MOTOR - Maximum cable length metres (Motor to service entrance)
3 wire motor - Cable spec – 3 core with earth, P.V.C. insulated, P.V.C. sheathed, copper conductors.
CABLE SIZE SQ.MM
Motor kW F.L.A. 1.5mm 22.5mm 24mm26mm210mm 216mm 225mm 2
0.75kW 7.0 52 86 135 200 340 540 930
1.1 kW 8.9 38 64 100 150 250 400 690
1.5 kW 10.7 35 58 92 135 230 360 630
2.2 kW 15.9 — 37 59 89 150 230 400
3.7 kW 23.4 — — 41 61 100 160 280
THREE PHASE MOTOR - Maximum cable length metres (Motor to service entrance )
Cable spec - 3 core with earth, P.V.C. insulated, P.V.C sheathed, copper conductors.
CABLE SIZE SQ.MM
Motor kW F.L.A. 1.5mm 22.5mm 24mm26mm210mm 216mm 225mm 2
0.37 kW 1.1 680 1150 1810 2710 4570 — —
0.55 kW 1.5 480 810 1280 1910 3220 5120 —
0.75 kW 2 370 620 980 1480 2490 3960 6680
1.1 kW 3 260 440 700 1050 1770 2810 4740
1.5 kW 4 200 330 530 790 1330 2120 3580
2.2 kW 6 140 230 360 550 930 1470 2490
3.0 kW 7.3 100 170 270 410 700 1110 1880
3.7 kW 9 90 150 230 350 600 950 1610
4.0 kW 10.4 80 130 210 320 540 870 1470
5.5 kW 13 60 100 150 230 400 630 1070
7.5 kW 18.7 — 70 110 170 290 470 790
OVERLOAD PROTECTION OF 4 INCH FRANKLIN SUBMERSIBLE MOTORS
SINGLE PHASE MOTORS - Single phase 0.37kW to 1.1kW (2 wire motors) have an inbuilt overload protector in
the motor. Single phase 0.75kW to 3.7kW (3 wire motors) must use the correct Franklin Control Box which includes
overload protection.
THREE PHASE MOTORS 0.37kW TO 7.5kW - When using three phase motors, the installing electrician must
provide for Heinemann CF3 circuit breaker or ambient temperature compensated overload relays to the setting
shown below.
MOTOR kW HEINEMANN CF3 CURVE 2 ADJUSTABLE OVERLOAD RELAYS
NORMAL SET MAX SET
0.37 kW 1.3 amps 1.12 1.2
0.55 kW 1.8 amps 1.58 1.7
0.75 kW 2.4 amps 2.05 2.2
1.1 kW 3.3 amps 2.88 3.1
1.5 kW 4.4 amps 3.81 4.1
2.2 kW 6.3 amps 5.49 5.9
3.0 kW 8.3 amps 7.25 7.8
3.7 kW 9.6 amps 8.46 9.1
4.0 kW 10.6 amps 9.30 10.0
5.5 kW 14.5 amps 12.74 13.7
7.5 kW 19.6 amps 17.21 18.5
“SC/SD” SERIES 4 Inch Submersible Pump Installation and Operation Manual
Page 6
CABLE SELECTION
OVERLOAD PROTECTION
FRANKLIN
MOTOR DA TA

CABLE SELECTION 4 INCH COVERCO SUBMERSIBLE MOTORS
SINGLE PHASE MOTOR - Maximum cable length metres (Motor to service entrance)
3 Wire motors - Cable spec – 3 core with earth, P.V.C. insulated, P.V.C. sheathed, copper conductors.
CABLE SIZE SQ.MM
Motor kW F.L.A. 1.5mm 22.5mm 24mm26mm210mm 216mm 225mm 2
0.37 kW 3.4 140 230 360 550 920 — —
0.55 kW 4.4 100 160 260 390 670 1070 —
0.75 kW 5.6 80 130 210 310 530 850 1460
1.1 kW 8.1 58 96 150 220 380 610 1040
1.5 kW 10.1 44 73 110 170 290 460 790
2.2 kW 14.1 — 50 80 120 200 320 550
3.7 kW 23.4 — — 45 65 110 180 300
THREE PHASE MOTOR - Maximum cable length metres (Motor to service entrance )
Cable spec - 3 core with earth, P.V.C. insulated, P.V.C sheathed, copper conductors.
CABLE SIZE SQ.MM
Motor kW F.L.A. 1.5mm 22.5mm 24mm26mm210mm 216mm 225mm 2
0.37 kW 1.2 680 1150 1810 2710 4570 — —
0.55 kW 1.8 450 760 1200 1810 3040 4840 —
0.75 kW 2.1 410 690 1080 1630 2740 4350 7350
1.1 kW 3 260 440 700 1050 1770 2810 4740
1.5 kW 4.5 200 340 540 810 1370 2170 3670
2.2 kW 6 150 250 390 590 990 1580 2670
3.0 kW 7.7 110 180 290 430 730 1160 1960
4.0 kW 10.3 80 130 210 320 550 880 1480
5.5 kW 13.1 60 100 160 240 400 640 1090
7.5 kW 18.7 — 70 110 170 290 470 790
OVERLOAD PROTECTION OF 4 INCH COVERCO SUBMERSIBLE MOTORS
SINGLE PHASE MOTORS - Single phase motors must use the correct Coverco Control Box which also includes overload
protection.
THREE PHASE MOTORS 0.37kW TO 7.5kW - When using three phase motors, the installing electrician must provide for
Heinemann CF3 circuit breaker or ambient temperature compensated overload relays to the setting shown below.
MOTOR kW HEINEMANN CF3 CURVE 2 ADJUSTABLE OVERLOAD RELAYS
NORMAL SET MAX SET
0.37 kW 1.3 amps 1.12 1.2
0.55 kW 1.9 amps 1.67 1.8
0.75 kW 2.1 amps 1.86 2.0
1.1 kW 3.3 amps 2.88 3.1
1.5 kW 4.3 amps 3.72 4.0
2.2 kW 5.8 amps 5.12 5.5
3.0 kW 8.0 amps 6.98 7.5
4.0 kW 10.5 amps 9.21 9.9
5.5 kW 14.3 amps 12.56 13.5
7.5 kW 19.6 amps 17.21 18.5
Page 7
“SC/SD” SERIES 4 Inch Submersible Pump Installation and Operation Manual
CABLE SELECTION
OVERLOAD PROTECTION
COVERCO
MOTOR DA TA

The following graph shows the minimum required water ow past motor for cooling. For example a 100mm (4")
Franklin motor and pump installed in 200mm inside diameter bor e casing requires a minimum ow past the motor
of 1.9 litres per second. If minimum ow calculated from the graph is not achieved a pump shroud must be tted
to ensure adequate motor cooling.
IMPORTANT: In all cases the water must enter the casing from below the motor, or for bores tted with perforated
casing, or wells where the water enters from above the pump, a cooling shroud MUST be tted to ensure cooling
water continuously ows past the motor.
“SC/SD” SERIES 4 Inch Submersible Pump Installation and Operation Manual
MOTOR
COOLING
Page 8
12
10
8
6
5
320
300
280
260
240
220
200
180
160
140
120
INTERNAL DIAMETER OF BORE CASING
—mm
0.5 1 2 3 4 5 6
FLOW IN LITRES PER SECOND
100mm (4 inch) Franklin Motors
INTERNAL DIAMETER OF BORE CASING
—inches
100mm (4 inch) Coverco Motors

Problem Possible Cause of T rouble & Remedy
Pump will not run. 1. No power. Replace fuses or reset circuit breaker. Contact electrician if required.
2. Incorrect voltage. Contact electrician if necessary.
3. Incorrect fuses. Replace with proper fuses.
4. Defective pressure switch. Clean contact points or replace points.
5. Defective wiring. Check for loose or corroded connections.
6. Control box malfunction. Check wiring circuits and components. Correct wiring
and/or replace defective components. Press prong connectors to assure contact.
7. Bound or defective pump. Sand bound three phase units can sometimes be
corrected by temporarily reversing any two leads (except earth wire), running for 5
to 10 seconds, then returning to normal. Pull pump and repair if unsuccessful.
8. Defective cable or motor winding. Pump must be pulled and the motor or
electrical cable repaired or replaced.
Pump runs, but delivers 1. Check valve. Reverse check valve.
little or no water. 2. Pump rotation wrong. For three phase units, swap any two leads (except earth wire).
3. Incorrect wiring. For three-wire single phase units, check wiring connections.
4. Leak in riser pipe. Raise pipe, check for leak and replace damaged section.
5. Pump screen blocked. Clean screen and reset at less depth. Bore may have to
be cleaned.
6. Air locked pump. Normal delivery may resume if pump is started and stopped at
one minute intervals.
7. Low water level. Throttle pump output or reset pump at lower depth if possible.
8. Worn pump. Pull pump and repair or replace.
9. Loose or broken motor or shaft. Check for damaged shaft if coupling is loose.
Replace worn or defective unit.
Pump will not turn o . 1. Pressure switch. Clean points or replace switch.
(Automatic Control) 2. Low water level. Throttle pump output or reset pump at lower depth if possible.
3. Leak in system. Repair or replace tank or pipe section.
4. Worn pump. Pull pump and repair or replace.
Pump starts too often. 1. Pressure switch. Reset switch limits or replace switch.
(Automatic Control) 2. Check valve. Remove and replace if defective.
3. Leak in system. Repair or replace tank or pipe section.
4. Water logged tank. Clean or replace air volume control. Drain and recharge tank.
WARNINGS & SPECIFICATIONS
nel working in acco rdance with
National and Local Electrical Codes.
Check respond to your order.
Check that the pump has not been damaged during transit, paying particular attention to the electrical cables.
Never support the weight of the pump on the electrical cable.
Do not use these pumps in swimming pools.
Never serious damage.
Only for use with chemically and physically non-aggressive water.
Maximum solid content: 25gr/m3.
Maximum temperature of liquid to be pumped: 30°C.
Maximum time for running pump with gate valve closed: 2 minutes.
Maximum number of starts (at even intervals) per hour: 20.
Maximum
“SC/SD” SERIES 4 Inch Submersible Pump Installation and Operation Manual
Page 9
TROUBLE SHOOTING CHART
If none of the above remedies the problem please contact your local Southern
Cross Dealer or call Pentair Southern Cross on 131 786

“SC/SD” SERIES 4 Inch Submersible Pump Installation and Operation Manual
Page 10
Telephone 131 786
www.southerncross.pentair.com
A division of Pentair Flow Control Pacific Pty Ltd
A.B.N. 83 000 922 690