Read these installation instructions in detail before installing your pump. Be sure to check the following:
1. Be certain the motor is connected for the correct line voltage being used (check motor nameplate).
2. Be certain the pump is completely primed before starting. Otherwise damage may occur to the seal.
Every pump is tested before leaving the factory, and its performance depends largely on the installation.
SPJ SERIES
CENTRIFUGAL, IRRIGATION
PUMP
FW0419
0612
Supersedes
0906
IL0175
GENERAL SAFETY INFORMATION
1. Follow all local electrical and safety codes, as well
as the National Electrical Code (NEC) and the
Occupational Safety and Health Act (OSHA).
2. Replace damaged or worn wiring cord
immediately.
3. Do not kink power cable and never allow the cable
to come in contact with oil, grease, hot surfaces, or
chemicals.
4. Protect the power cable from coming in contact
with sharp objects.
5. Be careful when touching the exterior of an
operating motor - it may be hot enough to be
painful or cause injury.
6. Make certain that the power source conforms to
the requirements of your equipment.
7. Always disconnect power source before
performing any work on or near the motor or
its connected load. If the power disconnect point
is out-of-sight, lock it in the open position and tag
it to prevent unexpected application of power.
Failure to do so could result in fatal electrical
shock.
8. Do not handle the pump with wet hands or when
standing in water as fatal electrical shock could
occur. Disconnect main power before handling
unit for ANY REASON!
9. Unit must be securely and adequately electrically
grounded. This can be accomplished by wiring the
unit to a ground metal-clad raceway system or by
using a separate ground wire connected to the bare
metal of the motor frame or other suitable means.
10.RISK OF ELECTRIC SHOCK. These
pumps have not been investigated for use in swimming pool areas.
11.
to the State of California to cause cancer and birth
defects or other reproductive harm.
NOTE: Pumps with the “UL” Mark and pumps with the
“US” mark are tested to UL Standard UL778.CSA certied
pumps are certied to CSA Standard C22.2 No. 108.
LOCATION
1. Pump can be located at the well or can be offset
some distance away from the well. For best
performance it should be located as close to the
well as possible.
2. Location can be in the basement, a pit below
ground, or in a pump house above ground.
3. Ventilation and drainage must be provided to
prevent damage from moisture to the motor and
pressure switch.
4. The pump and all piping must be protected from
freezing.
5. Pump and pipe line must be drained when not in
use if there is any danger of freezing.
WELL CONDITIONS
1. Wells should be pumped clean of all sand and
foreign matter before installing the pump or
damage may result to the operating parts.
2. The well must be able of supplying enough water
to satisfy the capacity of the pump and water
needs. The water level must not draw down below
the maximum rated suction lift of the pump or loss
of capacity and prime will result.
SUCTION LIMITATIONS
1. Shallow well installation is satisfactory where the
suction lift is less than 25 feet. Suction lift is the
vertical lift plus losses due to friction loss.
2. Suction lift varies depending upon elevation
(altitude) and water temperature.
1
This product contains chemicals known
PERFORMANCE
Model Number
1 Phase3 Phase
SPJ07P1 SPJ07P33/4
SPJ10P1 SPJ10P31
SPJ15P1
SPJ15B1
SPJ20B1 SPJ20B32
SPJ30B1 SPJ30B33
Motor voltage: Single Phase: 3/4 - 2 HP - 115/230V 60Hz; Three Phase: 3/4 - 3 HP - 208-230/460V 50/60Hz
Maximum Case Pressure: 100 PSI
SPJ15B31-1/2
HP
Suction
Lift Ft.
5
15
25
5
15
25
5
15
25
5
15
25
5
15
25
1015202530354045
56
47
43
58
53
48
78
70
47
86
76
52
88
77
54
Discharge Pressure PSI
Capacity - U.S. Gallons per Minute
48
42
37
29
42
37
53
48
44
77
68
46
84
74
51
86
76
53
37
31
48
45
38
74
66
45
81
72
50
85
75
52
29
22
43
37
33
70
62
44
77
69
47
84
74
51
22
10
38
31
25
62
53
42
71
64
45
80
72
50
21
12
32
24
14
53
43
34
62
55
42
73
65
49
Shut-Off
Pressure
PSI
41
37
33
23121148
43303047
52
40
43
25
30
64
53
55
43
45
10
43
39
41
36
50
45
40
54
50
45
Suction
Pipe Tap
2”1-1/2”
2”1-1/2”
2”1-1/2”
2”1-1/2”
2”1-1/2”
SPECIFICATIONS (Figure 2)
Motor
HPType
Volts/
AmpsHzRPM
Voltage
(Factory)
Connected
3/4
1
Single
1-1/221.0 10.5
Ph
115/230
603450
225.0 12.5
115V14.07.0
230V
3230-13.5
34
14.52.25
Three
1-1/25.72.85
27.43.70
20/-230/460 60/50
Ph
3450/
2850
230V--
39.84.90
Suction lift varies, depending upon elevation (altitude) and water temperatures.
ServiceFactorMotor
Amps
Single
Phase
Three
Phase
115V 230V 230V 460V
18.09.0
--180˚F25 Ft.
3.51.75
Max
Liquid
Temp
Max
Suction
Lift
180˚F25 Ft.
Disch.
Pipe
Ta p
PIPING
1. Plastic or galvanized steel pipe may be used
in the installation. Plastic pipe must have a
minimum pressure rating 160 P.S.I. Galvanized
steel pipe must be in good condition free of rust
and scale. Threads should be sharp, cleanly
cut.
2. Both the suction and discharge pipe should be
no smaller than the corresponding tappings
of the pump (See Figure 1). If long runs are
encountered larger pipe should be used.
Smaller pipe will reduce the capacity of the
pump.
3. All joints and connections should have pipe
sealing compound (male threads only) applied
and drawn up tightly.
CAUTION: The entire system must be air and water
tight for efficient operation.
PUMP INSTALLATION
1. Refer to Figures 3, 4, 5, and 6 for typical
installations. If galvanized pipe is used, both the
suction and discharge pipe should be supported
at a point near the pump to avoid strains being
placed on the pump.
2. The suction pipe should slope upwards from the
water source to the pump. Locate the pump
as close to the water as possible keeping the
suction pipe as short as conditions permit.
3 Avoid dips or pockets in offset piping or air
will accumulate at high points which will make
priming difficult.
4. A foot valve located in the water or a check
valve located as close to the water as possible
will reduce priming time of the pump and help
maintain prime. A strainer must be used on the
suction line to filter out dirt and debris.
5. Install a gate valve and union in the discharge
line. For removal of the pump for service, close
the gate valve and disconnect the union.
CAUTION: Do not use a globe valve or other
restricting type of valve at the discharge. This will
seriously restrict the capacity of the pump.
2
TYPICAL INSTALLATIONS
4
3
1
Check
Valve
Water Level
Drive Point
Figure3—FromGroundWater“DrivePoint”
1
Check Valve
5
2
To Sprinkler System
4
3
5
2
7
8
6
7
6
9
1
Well Seal
Figure4—FromGroundWater“Well”
9
3
8
4
3
Well
Water Level
Foot Valve With Screen
4
5
2
To Sprinkler System
5
2
7
8
6
7
8
6
9
9
Pipe Support
Water
Level
Strainer
Figure 5 — From Surface Water “Lake, Stream, Cistern or
CAUTION: To reduce the risk of electric shock the
motor must be securely and adequately grounded
to a grounded metal raceway system, or by using a
separate grounding wire connected to bare metal on
the motor frame, or to the grounding screw located
inside motor terminal box, or other suitable means.
Refer to National Electric Code (NEC Article 250
{Grounding}) for additional information.
CAUTION: All wiring should be performed by a
qualified electrician and in accordance with the
national electric code and local electric codes.
WARNING: Failure to connect the motor frame to
equipment grounding conductor by using green
screw may result in serious electrical shock.
WIRING CONNECTIONS
1. This unit is not water proof and is not intended to
1
To Sprinkler System
Figure6—FromCityWaterMain
used in a clean dry location with access to
an adequate supply of cooling air. Ambient
temperature around the motor should not exceed
104F (40C). For outdoor installations motor
must be protected by a cover that does not block
airflow to and around the motor. This unit is not
weatherproof nor is it able to be submersed in
water, or any other liquid.
2. Single phase motors, 3/4 - 2 HP, are dual
voltage and can be connected for 115V or 230V
service. The 3 HP single phase motor is 230V
only. Single phase motors are factory connected
for 230V at the motor.
3. All three phase motors are 208-230/460 volts
and are factory connected at the motor for 230
volts.
be used in showers, saunas, or other potentially
wet locations. The motor is designed to be
4. If the motor wiring must be changed to conform
to your specific voltage requirements then the
motor should be rewired. For proper electrical
connections, refer to the connection diagram
located on the nameplate of the motor or one of
the following diagrams. Make sure connections
are correct for the voltage being supplied to the
motor.
WARNING: Always disconnect power source before
performing any work on or near the motor or its
power source. Failure to do so could result in
personal injury or fatal electrical shock.
NOTE: To reverse rotation, interchange any two incoming line (power)
leads
Figure 8 — Wiring Diagram for Three Phase
Connections for 3 Phase, 9 Leads
MOTOR PROTECTION
1. All single-phase motors have built-in thermal
protection for all voltages. The overload protects
the motor against burnout from overload of
low voltage, high voltage and other causes.
The device is automatic and resets itself once
the temperature has dropped to a safe point.
Frequent tripping of the device indicates trouble
in the motor or power lines and immediate
attention is needed. The device should never be
tampered with unless the trouble is located and
corrected.
WARNING: Never examine, make wiring changes
or touch the motor before disconnecting the main
electrical supply switch. The thermal device may
have opened the electrical circuit.
2. Three-phase motors do not have built-in
thermal protection. It is recommended that a
properly sized magnetic or manual starter (both
with properly sized heaters) be used with all
three-phase motors. Install starters following
instructions of the starter manufacturer. See
Figure 10 for magnetic starter wiring program.
3. All motors (single and three phase) should be
equipped with a correctly fused disconnect
switch to provide protection. Consult local or
national electric codes for proper fuse protection
based on motor data chart. See Figures 9 & 11.
MOTOR DATA (Figure 9)
HPPhaseVolts
3/4
1
1-1/2
2
3
1
1
3
3
1
1
3
3
1
1
3
3
1
1
3
3
1
3
3
115
230
230
460
115
230
230
460
115
230
230
460
115
230
230
460
230
230
460
Code
Letter
K
L
L
K
K
J
J
K
K
H
H
K
K
H
D
D
Amps
14.00
18.00
21.00
10.50
25.00
12.50
13.50
Max
7.00
3.50
1.75
9.00
4.50
2.25
5.70
2.85
7.40
3.70
9.80
4.90
Locked
Rotor
Amps
52.0
26.0
19.0
9.5
70.0
39.0
26.9
13.5
98.0
49.0
33.5
16.8
116.0
58.0
44.0
22.0
53.0
48.0
24.0
4. Undersize wiring can cause motor failure (low
voltage), frequent cut-out of motor overload
protector, television interference and even fire.
Make certain the wiring is adequately sized
(Figure 11), well insulated and connected to a
separate circuit outside the house in case of fire.
#10 or Heavier
Copper Ground
Wire. Connect to 8
ft. Ground Rod or
Well Casing
1
VM
T1
L2
W
T2
T2
Motor
L1
3
2
Pressure
Switch
T1
Figure 10 — Magnetic Starter Wiring Diagram — Three Phase
OPERATION
1. When installation has been completed, remove
the priming plug from the discharge tee (see
Figures 3-6) and fill the pump body and suction
pipe completely with water. No additional water
will be needed for subsequent start-ups unless
the pump body is drained.
2. After the pump is turned on it will require 2-5
minutes before all air is evacuated from the
suction line and water begins to flow. If there is
no water after 10 minutes turn the pump off and
check the following.
a. Any air leaks on the suction line must be
eliminated.
b. Suction pipe inlet should be a minimum of 5
feet below the water level.
c. Total suction lift cannot be greater than 25
feet.
d. Any restrictions in the discharge line, such as
a closed valve must be eliminated.
NOTE: Unit must be full of liquid before operating.
Never run dry, or against a closed discharge. Dry
running or running unit against a closed discharge
will cause damage to the shaft seal. Do not pump
dirty water or abrasive liquids, otherwise the same
may occur as if running dry.
MOTOR ROTATION
1. Single phase models are one rotation only
(counterclockwise when facing the pump suction
tapping) and cannot be reversed.
2. Proper rotation of pump impeller is critical for
three-phase pumps. Pump motor should turn
counterclockwise (CCW) when facing pump
suction tapping. Momentarily “bump” (apply
power for less than a second) the motor to check
for proper rotation. To change rotation on threephase units, interchange any two incoming line
(power) leads.
MAINTENANCE
Lubrication
1. The pumps and motors require no lubrication.
The ball bearings of the motor have been
greased at the factory. Under normal operating
conditions they should require no further
greasing.
Freezing
1. Drain the entire system if there is danger of
freezing. A drain plug is provided at the bottom
of the pump case for this purpose.
ROTARY SEAL ASSEMBLY REPLACEMENT
CAUTION: Make certain that the power supply is
disconnected before attempting to service the unit!
The rotary seal assembly must be handled carefully
to avoid damaging the precision lapped faces of the
sealing components.
See Parts List For Reference Numbers
1. Disengage pump body (Ref. No. 10) from motor
and mounting ring (Ref. No. 2) by removing bolts
(Ref. No. 11).
4.. The rotary seal (Ref. No. 5) will come loose at this
time. Use a screwdriver (or similar instrument) to
pry the ceramic seal and rubber gasket from the
recess of the mounting bracket.
CAUTION: Be careful not to damage the motor shaft
or recess surface.
5. Clean the recess and motor shaft thoroughly.
6. Install the new rotary seal assembly:
a. Insert the ceramic seal and the rubber gasket
into the recess.
NOTE: To help facilitate installation, apply a drop
of liquid soap to the outside diameter of the rubber
gasket. Make certain that the ceramic seal is kept
clean and free of dirt and/or oil.
b. Slip the remaining parts of the rotary seal
assembly onto the motor shaft.
7. Replace the impeller and diffuser removed in
Step B and C.
8. Reassemble the pump body to the motor and
mounting bracket.
MOTOR REPLACEMENT
1. NEMA J motors can be replaced in the field
SELF-PRIMERPUMPREPAIRPARTS—SPJSERIES
12
with any standard NEMA J jet pump motor by
referring to the following instructions and the
attached parts list.
2. Follow steps A-D as outlined under rotary seal
replacement to remove the pump body, diffuser,
impeller and rotary seal.
3. Remove bolts (Ref. No. 3) that connect the
motor (Ref. No.1) to the mounting ring (Ref. No.
2) and pull motor away.
4. Replace motor with standard NEMA J jet pump
motor by positioning motor against the mounting
frame and assembling with four 3/8” x 3/4” cap
screws. The mounting base is connected at the
bottom of the mounting frame with two 3/8” x
1/2” cap screws.
5. Follow steps 5, 6, 7 & 8 of Rotary Seal Assembly
to reassemble the remainder of the pump.
NOTE: Because damage to the shaft seal is most
likely to occur in disassembly, a new seal will be
necessary.
4
7
3
11
12
ITEMSINGLE PHASEMODEL NO.SPJ15P1
THREE PHASESPJ07P3SPJ10P3SPJ15B3SPJ20B3SPJ30B3
DESCRIPTIONPART NO.QTY
1
Motor, Nema J - 1 PH
1
Motor, Nema J - 3 PH
Motor Cover w/Screws
‡
Screws, Cover
‡
Slinger, Washer
2
Mounting Ring
3
Hex Hd. Cap Screws 3/8 x 3/4”
4
Ring, Square Cut
5
Seal, Rotary w/Spring
6
Impeller, Plastic “P” Models
6
Impeller, Brass “B” Models
7
Diffuser w/ Insert
8
Hex Hd. Cap Screws 1/4 x 1”
9
Rubber Diffuser
1011Pump Body
Hex Hd. Cap Screws 7/16 x 1”
1213Base
Hex Hd. Cap Screws 3/8 x 1/2”
(*) Standard hardware item
(‡) Not shown
(†) Diffuser w/ 134240 Insert