Rain Bird BPUMP1HP User manual

LAWN SPRINKLER
IRRIGATION PUMP
MODEL # : BPUMP1HP, BPUMP1-5HP
RAIN BIRD CORPORATION
6991 E. Southpoint Road
Tucson, AZ 85756
SAFETY INFORMATION
Please read and understand this entire manual before attempting to assemble, operate or install the
product. If you have any questions regarding the product, please call customer service at
1-866-544-1406.
DANGER
ELECTRICAL SHOCK HAZARD.
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.
ELECTRICAL SHOCK HAZARD.
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!
RISK OF ELECTRIC SHOCK.
These pumps have not been investigated for use in
swimming pool areas.
WARNING
ELECTRICAL SHOCK ALERT.
Follow all local electrical and safety codes, as well
as the National Electrical Code (NEC) and the
Occupational Safety and Health Act (OSHA).
ELECTRICAL SHOCK ALERT.
Replace damaged or worn wiring cord immediately.
ELECTRICAL SHOCK ALERT.
Do not kink power cable and never allow the cable
to come in contact with oil, grease, hot surfaces, or
chemicals.
ELECTRICAL SHOCK ALERT.
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.
CHEMICAL ALERT.
This product contains chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm.
CAUTION
ELECTRICAL SHOCK MAY OCCUR
Protect the power cable from coming in contact with
sharp objects.
HOT SURFACE MAY CAUSE BURNS
Be careful when touching the exterior of an operating
motor - It may be hot enough to be painful or cause
injury.
PRODUCT DAMAGE MAY RESULT
Make certain that the power source conforms to the
requirements of your equipment.

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© Copyright 2021. All rights reserved.
PREPARATION
Before beginning installation of product, make
sure all parts are present. Compare parts
with package contents drawing. If any part is
missing or damaged, do not attempt to assemble
the product. Contact customer service for
replacement parts.
Estimated Installation Time: 2 hours.
Tools Required for Assembly:
Hacksaw
Pipe Wrenches (2)
Wire Strippers
Needle-Nose Pliers
Phillips Screwdriver
Wire Cutters
Adjustable Wrench
Parts Required For Assembly:
2” foot valve or 2” suction strainer with check
valve
2 in. Sched 40 PVC pipe
1-1/2 in. Sched 40 PVC pipe
2 in. MPT x 2 in. slip adaptor
1-1/2 in. MPT x 1-1/2 in. slip adaptor
1-1/2 in. pipe tee
1-1/2 in. slip x 1-1/4 in. FPT reducer bushing,
1-1/4 in. MPT plug
2 in. 90º pipe elbow
1-1/2 in. 90º pipe elbow
thread tape
1/4 in. electric wire strain relief
2-step PVC glue system (primer and sealer)
Thread paste.
Optional Parts For Assembly (not included):
1. Priming Plug with Pressure Gauge: Used
instead of a priming plug alone. Helps
determine if the pump is primed, indicates if
the pump is operating properly and what kind
of pressure is in the system when operating.
a. (1) 1-1/4 in. MPT x 1/2 in. FPT reducer
bushing
b. (1) 1/2 in. MPT x 1/4 in. FPT reducer
bushing
c. (1) 100 PSI pressure gauge
2. Unions: Used for easy removal of the pump
from the sprinkler system.
a. (2) 2 in. union
b. (1) 1-1/2 in. union
3. (1) 1-1/2 in. Ball Valve: Prevents back ow
of water from the sprinkler system when the
pump is removed from the system.
4. 1-1/2 in. Couplers: Quantity determined by
the total length of pipe used.
5. 2 in. Couplers: Quantity determined by the
total length of pipe used.
Component Specications
Pump housing Heavy-duty, cast-iron
Di󰀨user Thermoplastic
Impeller Thermoplastic
Rotary seal Carbon/silicon carbide
Mounting ring Heavy-duty, cast-iron
Square cut ring Buna-N
Base Rigid steel
Motor Dual voltage, double-ball
bearing
MOTOR DATA CHART
HP Phase Volts
Code
Letter
Max
Amps
Locked
Rotor
Amps
11
1
115
230 H17.6 8.8
62.0
31.0
1-1/2 1
1
115
230 G18.00 9.00
72.0
36.0

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© Copyright 2021. All rights reserved.
Typical Pump Setup
Typical setups for lawn sprinkler pump systems
include ground water wells (Fig. 1) or surface
water, such as lakes, ponds or streams. (Fig. 3)
Location
For best performance, the pump must be located
as close to the water source as possible and
protected from the elements.
Ventilation
Ventilation and drainage must be provided to
prevent damage to the motor from heat and
moisture.
Freezing
The pump and all piping must be protected from
freezing. If freezing weather is forecast, drain
pump or remove completely from the sprinkler
system.
Water Supply
The water source must be able to supply enough
water to satisfy the capacity of the pump and
water needs. See performance chart.
WARNING: NEVER run pump against a
closed discharge. Doing so can boil water inside
pump, causing hazardous pressure in unit, risk
of explosion and possibly scalding persons
handling pump. (Fig. 2)
Vertical Lift
Vertical lift is the vertical distance from the lowest
level of the water to the pump intake. The pump
will move water as long as the pump is within 25
vertical feet of the water source.
Horizontal Distance
The horizontal distance is the horizontal
measurement between the pump inlet and the
water source. This distance may affect the ability
of the pump to operate. If it is over 60 feet, call
customer service at 1-866-544-1406.
Pipe And Fittings
Use galvanized steel or NSF PW Schedule 40
PVC pipe and fittings. This material is designed
for water pressure and will seal against air
and water under pressure. Do Not Use: DWV
fittings, as these are designed for drains without
pressure and will not seal properly.
GENERAL PUMP INFORMATION
Water Level
25 ft.
max
Vertical
Lift
Outlet
Pipe
Inlet
Pipe
Discharge to
Sprinkler System
60 ft. max.
Inlet pipe to water
Pipe
Support
Fig 2Fig 1
Water Level
25 ft.
max
Vertical
Lift
Outlet Pipe
Inlet
Pipe
Discharge to
Sprinkler System
Inlet pipe to water
Pipe
Support
60 ft. max.
Motor Cover
Foot
Valve
Fig 3
CAUTION: The entire system must be
air and water tight for efficient operation and to
maintain prime.
Wire Size:
The wire size is determined by the distance from
the breaker box to the pump motor, and the
horsepower rating of the motor. See the wire chart
for proper wire size.
1-1/2 in. Discharge
2 in.
Suction
Fig 4

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© Copyright 2021. All rights reserved.
PUMP PREPARATION FOR WELL AND SURFACE WATER
CAUTION: Dry-t entire assembly to
ensure proper t before gluing or taping parts.
CAUTION: Follow all proper gluing
procedures as specied by the glue
manufacturer. Always glue in a vertical direction
whenever possible to prevent glue from
dripping inside pipe or ttings
CAUTION: Use thread tape and a thread
paste compound on all male threads except for
the unions. Tighten securely with a wrench and
add another 1/4 turn to ensure proper seal.
1. Thread 1-1/2 in. MPT x 1-1/2 in. slip adaptor
into the outlet port located at the top of the
pump.
2. Glue a 6 in. piece of 1-1/2 in. pipe into the
adaptor.
3. Glue a 1-1/2 in. tee to the pipe.
4. Glue a 1-1/2 in. slip x 1-1/4 in. adaptor to
the top opening of the 1-1/2 in. tee.
5. Thread in a 1-1/4 in. priming plug or optional
priming plug with pressure gauge.
NOTE: Hand tighten only, as this will be
removed for priming.
6. Glue another 6 in. section of 1-1/2 in. pipe
into the opening in the 1-1/2 in. tee.
7. Glue the male thread side of a 1-1/2 in.
union to the pipe.
8. Thread 2 in. MPT x 2 in. slip adaptor into
the inlet port located on the front of the
pump body.
9. Glue an 8 in. section of 2 in. pipe into the 2
in. adaptor.
10.Glue one side of a 2 in. union to the pipe.
IL1252
IL1253
Fig 2Fig 1
IL1254
IL1255
Fig 4Fig 3
Priming Plug
with Pressure
Gauge
1-1/4 in.
Priming
Plug
Fig 6Fig 5
Fig 8Fig 7
Fig 10Fig 9

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© Copyright 2021. All rights reserved.
PUMP PREPARATION FOR WELL AND SURFACE WATER
For Well Installations
11. Thread a 2 in. MPT x 2 in. slip adaptor into
the foot valve.
12.Glue 2 in. pipe into the adaptor. Glue enough
sections of pipe together using 2 in. couplers
in order for the foot valve to be completely
submerged in water. Be sure inlet pipe
will remain fully submerged at the lowest
expected level of the water source.
13.Install well seal in order to hold the inlet pipe
in position in the well.
14.Glue a 90º elbow when the inlet pipe is in line
with the inlet port of the pump.
For Surface Water Installations
For surface water installations, follow steps 11
and 12 above and then:
15.Glue a 45º elbow when the inlet pipe is in line
with the inlet port of the pump.
16.Support inlet pipe with pipe support.
Fig 12Fig 11
IL1261
Water Level Discharge to
Sprinkler System
Well Seal
Inlet Pipe
Water Level Discharge to
Sprinkler System
Elbow
Fig 14Fig 13
Water
Level
Outlet Pipe
Inlet
Pipe
Discharge to
Sprinkler System
Elbow
Pipe
support Slope pipe upward
from water source
Use a concrete block or
other solid material to
support suction pipe
Water level
Fig 16Fig 15

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© Copyright 2021. All rights reserved.
PUMP INSTALLATION FOR WELL AND SURFACE WATER
1. Mount pump on a solid foundation as close to
the water source as possible.
CAUTION: Support the 2 in. inlet
pipe from the well or lake to the inlet port
to prevent sagging. Sagging will create air
pockets within the pipe that will prevent the
pump from priming and operating correctly.
2. Glue female 2 in. union to the end of inlet
pipe leading from the water source.
3. Connect the 2 in. union together to complete
the inlet line to the pump.
4. Glue a 6 in. piece of 1-1/2 in. pipe to the
female portion of the 1-1/2 in. union.
5. Glue 1-1/2 in. ball valve to the other end of
the 6 in. piece of pipe.
6. Connect the 1-1/2 in. outlet pipe to the
sprinkler system by gluing in additional
sections of pipe as needed.
7. Connect union to ensure proper t. Do not
tighten until after priming.
CAUTION: Do not glue union together.
Water Level Discharge to
Sprinkler System
Well Seal
100 PSI
Pressure
Gauge
Priming Plug
Union Ball
Valve
Outlet
Pipe
Inlet
Pipe
Well
Union
Water
Level
Outlet Pipe
Inlet
Pipe
2 in.
Female
Union
Fig 2Fig 1
Water
Level
Outlet Pipe
Inlet
Pipe
2 in.
Union
1-1/2 in.
Union
Fig 4Fig 3
Ball Valve
IL1123
Outlet Pipe
Inlet
Pipe
Discharge to
Sprinkler System
Fig 6Fig 5
IL1124
Outlet Pipe
Inlet
Pipe
Discharge to
Sprinkler System
Fig 7

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© Copyright 2021. All rights reserved.
WIRE SIZE CHART
Distance From
Motor To Fuse
Box, Meter or
Electrical Outlet
Minimum Copper Wire Size Chart
(Gauge)
Single Phase Motors
1 HP 1-1/2 HP
115
Volt
230
Volt
115
Volt
230
Volt
0-50 Ft.
50-100 Ft.
100-150 Ft.
150-200 Ft.
200-300 Ft.
Fuse Size (Amps)
12
10
8
*
*
30
14
14
12
12
10
15
12
10
8
*
*
30
14
14
12
12
10
20
(*) Not economical to run in 115V, use 230V
PUMP ELECTRICAL INSTRUCTIONS
WARNING
ELECTRICAL SHOCK ALERT.
Under-size wiring can cause motor failure and
even fire. Use proper wire size specified in the
wire size chart.
ELECTRICAL SHOCK ALERT.
Replace damaged or worn wiring cord immediately.
ELECTRICAL SHOCK ALERT.
Do not kink power cable and never allow the cable
to come in contact with oil, grease, hot surfaces, or
chemicals.
ELECTRICAL SHOCK ALERT.
The pump must be properly grounded using
the proper wire cable with ground.
ELECTRICAL SHOCK ALERT.
Always disconnect pump from electricity
before performing any work on the motor.
WARNING
ELECTRICAL SHOCK MAY OCCUR
All wiring should be performed by a qualied
electrician in accordance with the National Electric
Code and local electric codes.
ELECTRICAL SHOCK MAY OCCUR
Connect the pump to a separate electrical circuit
with a dedicated circuit breaker. Reference the wire
size chart below for proper fuse size.
ELECTRICAL SHOCK MAY OCCUR
Protect the power cable from coming in contact with
sharp objects.
PRODUCT DAMAGE MAY RESULT
Make certain that the power source matches
the pump requirements. This pump has a dual
voltage motor and can run on 115 V or 230 V.
This pump is wired from the factory to run on
230 volts; refer to Electrical Instructions if you
want to change the pump to run on 115 volts.

8
© Copyright 2021. All rights reserved.
PUMP ELECTRICAL CONNECTIONS
A B L2
L1
IL1271
Fig 2Fig 1
A B L2
L1
IL1272
A B L2
L1
IL1273
Fig 4Fig 3
A B L2
L1
IL1274
A B
L2L1
G R AY
RED
Fig 6Fig 5
A B
L2L1
G R AY
RED
A B
L2L1
G R AY
RED
Fig 7bFig 7a
Fig 7c
1. Remove rear motor cover on pump by
unscrewing the two screws.
2. Thread electric wire strain relief into wire
opening on the side of the motor of pump.
3. Insert wire through electric wire strain relief
and tighten screws.
4. Connect white power lead to L1 and black
power lead to L2.
5. Connect green ground wire to green
grounding screw. Re-install rear motor cover
to pump.
To change from 230 V to 115 V
6. The motor of pump is dual voltage and
can run on either 115 volts or 230 volts. In
general, 230 volts is more economical to run,
and requires a smaller wire size. The pump is
pre-set in the factory to run at 230 volts.
7. For 115 volts service, change the following
wires on the terminal board:
a. Using a pair of needle nose pliers, pull the
gray wire with the female flag connector
from the “B” terminal spade post. Place it
to the left on the “A” terminal space post.
b. Pull the red wire with the female flag
connector from the “B” terminal. Place it to
the right on the L2 terminal space post.
c. Reinstall the rear motor cover.

9
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PUMP PRIMING & STARTUP
IL1278
Priming Plug
with Pressure
Gauge
Outlet Pipe
Inlet
Pipe
Air Relief Plug
IL1279
Priming Plug with
Pressure Gauge
Air Relief Plug
Fig 2Fig 1
IL1280
Air Relief
Hole
Outlet Pipe
Open Union
Air Relief
Plug
Pipe Tee
Fig 4Fig 3
IL1288
Priming Plug with
Pressure Gauge
Water
Level Pipe Tee
Closed
Open
Fig 6Fig 5
CAUTION: All pumps must be primed by
lling the pump cavity with water before they
are rst operated. This may take several gallons
of water, as the entire inlet line will be lled in
addition to the pump cavity. The longer the inlet
line, the more water is required for priming.
1. Disconnect the 1-1/2 in. outlet union and
separate the pipe.
2. Remove the air relief plug on top of pump and
the 1-1/4 in. priming plug with pressure gauge
or plug. Refer to Pump Preparation Step 5.
3. Slowly ll pump cavity until water comes out
of air relief hole on top of the pump.
4. Replace air relief plug and continue adding
water to pump cavity until water comes out of
the open outlet pipe at the open union.
5. Wait 10 minutes to see if water level drops
below the pipe tee. If level drops, check foot
valve. If level stays constant, replace the
priming plug.
6. Reconnect 1-1/2 in. union on outlet pipe.
Open the ball valve (turn handle to line up
with pipe), and then turn on breaker to start
pump.
IMPORTANT: If the pump fails to prime
within ve minutes:
7. Turn the power o󰀨 at the break box. Check
all pipe connections for leaks, making sure
all connections are water and air tight.
Check the inlet pipe for any sagging, making
sure the inlet pipe is in a straight line to the
pump. Watch for leaks or a milky color in
the discharged water, which indicated an air
leak. Re-prime if necessary, following steps
1 through 6 above. Reset breaker at the
breaker box.
IMPORTANT: If the pump hums instead of
pumping or turns o󰀨 repeatedly, shut pump o󰀨
immediately. Check voltage. Pump is wired to
run on 230 volts. If the pump cuts out or stops,
you may be attempting to connect to 115 volts.
See PUMP ELECTRICAL INSTRUCTIONS to
see how to correctly change the motor voltage to
115 volts.

10
© Copyright 2021. All rights reserved.
MAINTENANCE
LUBRICATION
The pump and motor requires no lubrication. The
ball bearings of the motor have been greased at
the factory. Under normal operating conditions
they should require no further greasing.
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 Letters
1. Disengage pump body Gfrom motor assembly
by removing bolts H.
2. Remove diffuser D.
3. Unthread impeller Cfrom motor shaft and
remove spring.
NOTE: To remove impeller, place screwdriver
within slot in shaft end and hold shaft firmly.
Rotate impeller counterclockwise to remove from
shaft.
4. Use a screwdriver to remove the rotary seal B.
Pry the ceramic seal and rubber gasket from
the recess of the mounting bracket. (Fig 1).
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 (Fig 2):
NOTE: To make installation easier, 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.
a. Insert the ceramic seal and the rubber
gasket into the recess. (Fig 3).
b. Slip the remaining parts of the rotary seal
assembly onto the motor shaft.
7. Replace the spring, impeller, and diffuser
removed in steps 2 and 3.
8. Reassemble the pump body to the motor and
mounting bracket.
Fig 1
Fig 3
Remove
Mechanical
Seal
Press ceramic
and gasket into
housing
Press rotary
seal onto shaft
against ceramic
Ceramic seal and rubber gasket
Rotary seal half
Stainless steel spring
Fig 2 - Rotary Seal Assembly

11
© Copyright 2021. All rights reserved.
TROUBLESHOOTING
Problem Possible Cause Corrective Action
A. Little or no
discharge
1. Casing not initially filled with water 1. Fill pump casing
2. Vertical lift too high, or too long 2. Move pump closer to water source
3. Hole or air leak in inlet line 3. Repair or replace inlet line. Use
thread tape and pipe sealing
compound
4. Foot valve too small 4. Match foot valve to piping or install
one size larger foot valve.
5. Foot valve or inlet line not
submerged deep enough in water
5. Submerge foot valve lower in water
6. Motor wired incorrectly 6. Check wiring diagram
7. Inlet or outlet line valves closed 7. Open valves
B. Pump will not
deliver water
or develop
pressure
1. No priming water in casing 1. Fill pump casing
2. Leak in inlet line 2. Repair or replace
3. Outlet line is closed and priming air
has nowhere to go
3. Open ball valve
4. Inlet line (or valve) is closed 4. Open line or valve
5. Foot valve is leaking 5. Replace foot valve
6. Inlet screen clogged 6. Clean or replace inlet screen
C. Loss of
suction
1. Hole or air leak in inlet line 1. Repair or replace inlet line. Use
thread tape and pipe sealing
compound
2. Vertical lift too high 2. Reduce vertical lift, install foot valve
and prime
3. Insufficient inlet pressure or suction
head
3. Increase inlet pressure by adding
more water to tank or increasing back
pressure
4. Clogged foot valve or strainer 4. Inspect foot valve and/or strainer for
debris, and remove
D. Pump
vibrates and/
or makes
excessive
noise
1. Mounting plate or foundation not
rigid enough
1. Reinforce plate or foundation
2. Foreign material in pump 2. Disassemble pump and clean
3. Impeller damaged 3. Replace impeller
E. Pump will not
start or run
1. Motor wired incorrectly 1. Check wiring diagram
2. Blown fuse or open circuit breaker 2. Replace fuse or close circuit breaker
3. Loose or broken wiring 3. Tighten connections, replace broken
wiring
4. Stone or foreign object lodged in
impeller
4. Disassemble pump and remove
foreign object
5. Motor overheated 5. Allow unit to cool, restart after cooling
F. Pump loses
prime.
1. Clogged foot valve or strainer 1. Inspect foot valve and/or strainer for
debris, and remove.
2. Worn or broken foot valve 2. Inspect and replace
3. Hole or air leak in inlet line 3. Repair or replace inlet line. Use
thread tape and pipe sealing
compound

12
© Copyright 2021. All rights reserved.
REPLACEMENT PARTS LIST
E DCBA F
Motor
Assembly
To order parts, call 1-866-544-1406
HP 1 1-1/2
ITEM SINGLE PHASE MODEL NO. BPUMP1HP BPUMP1-5HP
DESCRIPTION PART NO.
A
B
Ring, Square Cut
Seal, Rotary and Ceramic (with
Spring)
Call for
Replacement
Part Kits
1
1
1
1
C
D
E
F
Impeller
Diffuser
Diffuser Insert
Rubber Diffuser
Call for
Replacement
Part Kits
1
1
1
1
1
1
(*) Standard hardware item
NOTE: Motor assembly not available as a replacement part.
PRODUCT SPECIFICATIONS
Model # HP Suction Lift
(Ft.)
Discharge Pressure (PSI) Shut O󰀨
Pressure
@ 0 Lift (PSI)
Suction
Pipe
Discharge
Pipe
15 20 25 30 35 40 45
Capacity - U.S. Gallons per Minute
BPUMP1HP 1
565 61 53 44 32
39 2 in. 1-1/2 in.
10 64 58 49 39 24
15 62 55 45 34
20 59 51 41 28
25 56 46 36 2
BPUMP1-5HP 1-1/2
5 66 63 59 54 48 40 8
45 2 in. 1-1/2 in.
10 64 61 57 52 45 28
15 63 60 55 49 41 15
20 62 58 53 46 32
25 60 56 50 42 21
Max. Case Pressure: 100 PSI
D41966