Berkeley LT Series User manual

OWNER’S MANUAL
Self-Priming
Centrifugal Pumps
©2004 PRINTED IN U.S.A. BE976 (Rev. 8/23/04)
“LT” Series
Installation/Operation/Parts
For further operating, installation, or maintenance assistance:
Call 1-262-728-9181
293 Wright Street, Delavan, WI 53115

Safety 2
READ AND FOLLOW
SAFETY INSTRUCTIONS!
This is the safety alert symbol. When you see this
symbol on your pump or in this manual, look for
one of the following signal words and be alert to the
potential for personal injury:
warns about hazards that will cause serious
personal injury, death or major property damage if
ignored.
warns about hazards that can cause serious
personal injury, death or major property damage if
ignored.
warns about hazards that will or can cause
minor personal injury or property damage if ignored.
The label NOTICE indicates special instructions which
are important but not related to hazards.
Carefully read and follow all safety instructions in this
manual and on pump.
Keep safety labels in good condition.
Replace missing or damaged safety labels.
Make workshops childproof; use padlocks and master
switches; remove keys.
GENERAL SAFETY
Do not touch an operating motor. Modern
motors can operate at high temperatures. To avoid burns
when servicing pump, allow it to cool for 20 minutes
after shut-down before handling.
Do not allow pump or any system component to freeze.
To do so will void warranty.
Pump water only with this pump.
Periodically inspect pump and system components.
Wear safety glasses at all times when working on pumps.
Keep work area clean, uncluttered and properly lighted;
store properly all unused tools and equipment.
Keep visitors at a safe distance from the work areas.
Pump body may explode if used as a
booster pump unless relief valve capable of passing full
pump flow at 75 psi is installed.
WARNING
Hazardous pressure!
Install pressure relief
valve in discharge pipe.
Release all pressure on
system before working on
any component.
WARNING
Hazardous voltage.
Can shock, burn, or
cause death.
Ground pump before
connecting to power
supply. Disconnect power
before working on pump,
motor or tank.
Wire motor for correct
voltage. See “Electri-
cal” section of this manual
and motor nameplate.
Ground motor before
connecting to power
supply.
Meet National Electri-
cal Code, Canadian
Electrical Code, and local
codes for all wiring.
Follow wiring instruc-
tions in this manual
when connecting motor to
power lines.

Ta b le of Contents 3
Thank you for purchasing a top quality, factory tested pump.
Page
General Safety .....................................................................................................2
Warranty ..............................................................................................................3
Installation........................................................................................................4-5
Electrical...........................................................................................................5-6
Service .............................................................................................................6-8
Repair Parts ...................................................................................................9-10
BERKELEY LIMITED WARRANTY
Berkeley/Wicor Canada Company (“Wicor”) warrants to the original consumer purchaser (“Purchaser”) of its products that
they are free from defects in material or workmanship.
If within twelve (12) months from the date of installation or twenty-four (24) months from the date of manufacture any such
product shall prove to be defective, it shall be repaired or replaced at Berkeley’s/Wicor’s option, subject to the terms and
conditions set forth below.
General Terms and Conditions
Purchaser must pay all labor and shipping charges necessary to replace product covered by this warranty. This warranty
shall not apply to products which, in the sole judgement of Berkeley/Wicor, have been subject to negligence, abuse, acci-
dent, misapplication, tampering, alteration; nor due to improper installation, operation, maintenance or storage; nor to other
than normal application, use or service, including but not limited to, operational failures caused by corrosion, rust or other
foreign materials in the system, or operation at pressures in excess of recommended maximums.
Requests for service under this warranty shall be made by contacting the installing Berkeley/Wicor dealer as soon as pos-
sible after the discovery of any alleged defect. Berkeley/Wicor will subsequently take corrective action as promptly as rea-
sonably possible. No requests for service under this warranty will be accepted if received more than 30 days after the term
of the warranty.
The warranty on all three phase submersible motors is void if three-leg overload protection of recommended size is not used.
This warranty sets forth Berkeley’s/Wicor’s sole obligation and purchaser’s exclusive remedy for defective products.
BERKELEY/WICOR SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL, INCIDENTAL, OR CONTINGENT DAMAGES
WHATSOEVER.
THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS WARRANTIES. IMPLIED
WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, SHALL NOT EXTEND BEYOND THE DURATION OF THE APPLICABLE EXPRESS WAR-
RANTIES PROVIDED HEREIN.
Some states do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long an
implied warranty lasts, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal
rights and you may also have other rights which vary from state to state.
In the U.S.: Berkeley, 293 Wright St., Delavan, WI 53115
In Canada: Wicor Canada Company, 1800 Courtney Park Drive East, Unit 5-7,
Mississauga, Ontario L5T 1W1

Installation 4
Support suction pipe
as required Support discharge
pipe as required
As close
as possible
4 x "D"
minimum
Pipe diameter "D"
at least as large as
pump suction connection
Important:
All connections must
be air tight
Solid, level
base
Priming
Plug
Gate
Valve
Union
Discharge
to service
Recommended pump suction
and discharge connections
Not recommended pump suction
and discharge connections
Elbow immediately
in front of pump
suction.
High
lift
Pipe diameter "D"
insufficient size
Pipe submerged
less than 4 x "D"
will cause vortexing
Long suction
run
Valve
Unsupported
Pipe
Misaligned pipe causes
air leaks;
high spots along the suction line
result in
air pockets.
Offset suction flange adapter
keeps suction water level
above impeller eye to aid priming.
Use of excess fittings
means potential air leaks
Straight run, short as
possible but at least 6
times pipe diameter ("D");
slope is down going away
from pump.
1239 0894
Some models have top
discharge; these require
a priming tee.
On the discharge avoid:
Quick closing valves.
Small I.D. pipe.
Numerous fittings.
Misalignment.
Sharp turns in piping run.
Figure 1
Figure 2

Installation / Electrical 5
LOCATION OF UNIT
Locate the pump as near the liquid source as possible,
using a short, direct suction pipe. Keep the static suction
lift (vertical distance between the center line of the pump
and the liquid level) to a minimum. Mount the pump on
a solid, level foundation, which provides a rigid and
vibration-free support. It should be located where the
unit is readily accessible for service and maintenance.
The pump should be protected against flooding and
excessive moisture.
PIPING
Both suction and discharge piping should be indepen-
dently supported at a point near the pump to avoid
strains being placed on the pump. Start all piping at
pump to avoid strains left by a gap at last connection.
SUCTION PIPING
The suction pipe must be kept free of leaks. The suction
pipe must have a gradual slope upward to the pump.
Avoid any fittings which may cause an air trap. On units
that have a suction fitting, a check valve is a built-in fea-
ture and no foot valve is required.
DISCHARGE PIPING
Agate valve and union should be installed in the dis-
charge line. For removal of the pump for service, close
the gate valve, and disconnect at union.
ELECTRICAL INFORMATION
Disconnect power at service panel before
connecting motor. Single phase motors come factory
wired for 230 volt operation. Do not alter wiring in sin-
gle phase motors. Match motor voltage to power supply
voltage. Do not connect three phase motors to single
phase power supply or single phase motors to three
phase power supply.
Ground motor before
connecting to electrical
power supply.
Failure to ground motor
can cause severe or
fatal electrical shock hazard.
Do not ground to a gas
supply line.
To avoid dangerous or
fatal electrical shock,
turn OFF power to motor
before working on electrical
connections.
Supply voltage must be
within ±10% of name-
plate voltage. Incorrect volt-
age can cause fire or seriously damage motor and voids
warranty. If in doubt consult a licensed electrician.
Use wire size specified in Wiring Chart. If possi-
ble, connect pump to a separate branch circuit
with no other appliances on it.
WIRING
Step 1. Install, ground, wire and maintain this pump in
accordance with your local electrical code and
all other codes and ordinances that apply.
Consult your local building inspector for local
code information.
Step 2. Ground the pump permanently using a wire of
size and type specified by local or National
Electrical Code.
Do not ground to a gas supply line.
Step 3. Connect ground wire first. Connect to ground
first, then to green grounding terminal provided
(identified as GRD or ). Make ground connec-
tion to this terminal. Do not connect motor to
electrical power supply until unit is permanently
grounded; otherwise serious or fatal electrical
shock hazard may be caused.
WARNING
Hazardous voltage.
Can shock, burn, or
cause death.
Ground pump before
connecting to power
supply.

Electrical / Service 6
Step 4. For best ground connection, connect to a ground-
ed lead in the service panel or to a metal under-
ground water pipe or well casing at least 10 ft.
long. If plastic pipe or insulated fittings are used,
run ground wire directly to the metal well casing
or use ground electrode furnished by the power
company.
Before using pump, check your motor
nameplate for voltage. Your electric supply voltage and
the stamped nameplate voltage must agree. Motors
stamped 200 volts only or 230 volts only, must be used
with that voltage only. Motors stamped with two volt-
ages (for example 230/460 volts), may be used with
either supply voltage. For these motors check connec-
tions against wiring diagram on motor nameplate and
make any changes necessary to agree with your supply
voltage. If in doubt, call a licensed electrician. Incorrect
voltage will cause serious damage to the motor.
Some models are equipped with three phase motors.
Three phase motors require magnetic starters.
To check motors for proper rotation: The shaft can be
seen through the motor - pump adapter bracket. A mark
can be made on the shaft to make it easier to notice rota-
tion. Jog the motor (start it briefly) and note the rotation. It
should rotate clockwise when viewed from the motor-end.
If rotation is not clockwise, see motor nameplate for
hookup information. BE SURE power is off to the motor
when working on electrical connections.
Motor normally operates at high tempera-
ture and will be too hot to touch. Before handling pump
or motor, stop motor and allow it to cool for 20 minutes.
SERVICE
Never run pump dry. Running pump with-
out water may cause pump to overheat, damaging seal
and possibly causing burns to persons handling pump.
Fill pump with water before starting.
Never run pump against closed discharge.
To do so can boil water inside pump, causing hazardous
pressure in unit, risk of explosion and possibly scalding
persons handling pump.
PRIMING THE PUMP
Atee installed in the discharge opening of the pump, and
provided with a priming plug at the top position, will
enable you to fill the pump with liquid. Once filled and
the priming plug replaced, the pump will prime. The
pump should prime itself time after time, as long as the
built-in check valve functions.
MAINTENANCE
Little or no maintenance to pump is required other than
possible replacement of shaft seal after a reasonable peri-
od of operation (see Page 8).
Lubricate motor according to motor manufacturer’s in-
structions. Periodic greasing is required for most motors.
TABLE I – Recommended Wire and Fuse Sizes
DIAMETER IN FEET FROM MOTOR TO METER
BRANCH 0’ 51’ 101’ 201’ 301’ 401’
MAX. FUSE* TO TO TO TO TO TO
MOTOR LOAD RATING 50’ 100’ 200’ 300’ 400’ 500’
HP PHASE VOLTS AMPS AMPS
WIRE SIZE
31230 17.0 25 12 12 12 10 8 8
33230 9.6 15 14 14 14 12 12 10
33460 4.8 15 14 14 14 14 14 14
51230 28.0 40 8 8 8 8 6 6
51200 32.2 50 8 8 8 8 6 6
53200 17.5 25 10 10 10 10 8 8
53230 15.2 20 12 12 12 10 10 8
53460 7.6 15 14 14 14 14 14 14
*A Fusetron is recommended instead of a fuse in any motor circuit.
IMPORTANT: BE SURE lead wire opening on end of motor is fully sealed when conduit or a pressure switch is not
used. Failure to seal it properly will allow dirt, rain, bugs, etc. to enter back compartment of motor through conduit
opening and cause switch malfunction.

Service 7
PUMP STORAGE
Drain pump to prevent freezing.
Keep motor dry and loosely covered. Do not wrap with
plastic sheeting; trapped moisture could cause corrosion
or insulation deterioration.
NOTE: Agood rust inhibitor in the liquid end of cast iron
pumps is recommended to prevent excessive corrosion.
PUMP START-UP AFTER STORAGE
Replace all drain plugs and close all drain valves in
system.
Be sure all connections are tightly sealed.
After initial check is made, fill pump according to
“Priming the Pump,” above.
SHAFT SEAL REPLACEMENT
IMPORTANT: The highly polished and lapped faces of
the seal are easily damaged. Follow instructions and
handle the seal with care.
Be sure unit is grounded and power discon-
nected before attempting any work on
pump or motor.
REMOVAL OF OLD SEAL
Refer to Figure 3 for Mechanical Seal parts indentification.
Step 1. Disconnect all power to pump.
Step 2. Close isolation valves to cut pump off from
system.
Step 3. Drain pump; be sure to vent pump.
Step 4. Remove motor hold down bolts and bolts hold-
ing adapter/seal plate (Key No. 6, Page 9) to
pump body (Key No. 20). Slide motor, adapter/
seal plate and impeller (Key No. 12) backward
to clear pump body.
Step 5. Remove impeller screw and washer from end of
shaft and slide impeller off of shaft.
Step 6. Unbolt adapter/seal plate from motor.
Step 7. Use two screwdrivers (Figure 4) or bearing
puller to carefully separate motor from
adapter/seal plate, bringing rotating half of seal
(Key No. 10) off with adapter/seal plate. Shaft
sleeve (Key No. 2A) may come off with seal.
Step 8. Use hammer, if necessary, to drive shaft sleeve
out of seal. Clean up shaft sleeve with emery
paper if necessary.
Step 9. Place adapter/seal plate face down on bench
and drive old stationary half of seal out of
adapter/seal plate by carefully taping with
screwdriver and hammer (Figure 5).
Step 10. Use a wire brush to thoroughly clean
adapter/seal plate cavity. Be sure all dust and
grime are out of seal cavity before installing
new seal.
Hazardous
voltage
Stationary
Seat
Rotating
Seal
Spring
1419 1294
Figure 3
1421 1294
Figure 5
If Gear Puller is used,
place jackscrew here.
Rotating Seat will come off
with adapter/sealplate.
1420 1294
Figure 4

Service 8
INSTALLING NEW SEAL
Step 1. IMPORTANT: Seal faces are highly polished and
lapped. Handle with care. Any mar, nick or
scratch on seal face will cause it to leak. BE
SURE to install with polished faces toward each
other.
Step 2. Clean polished surface of ceramic seat with
clean cloth.
Step 3. Wet O-Ring around ceramic seat with liquid
soap.
Step 4. Press stationary (ceramic) half of seal into cavity
firmly and squarely with thumb pressure. If it
does not seal properly, remove and place face
up on bench. Re-clean adapter/seal plate cavity.
Seal should now seat correctly.
Step 5. If seal does not seat after recleaning adapter/seal
plate cavity, place a cardboard washer over pol-
ished face of seal and carefully press into place
using a piece of 1” standard pipe as a press.
(Figure 6). NOTE: BE SURE you do not scratch
seal face.
Step 6. Dispose of cardboard washer and recheck seal
face to be sure it is free of dirt, foreign particles,
scratches and grease.
Step 7. Inspect shaft and shaft sleeve to be sure they are
clean.
Step 8. Re-install O-Ring, shaft sleeve and slinger (Key
No. 4) on shaft.
NOTE: Asmall amount of grease or Never-Seez
under shaft sleeve will help prevent shaft and
sleeve from freezing together when pump is in
service.
Step 9. Remount adapter/seal plate to motor, being
careful not to scratch seal face.
Step 10. Apply liquid soap to inside diameter and out-
side face of rubber drive ring on rotating half of
seal.
Step 11. Slide seal assembly onto shaft sleeve (sealing
face first) far enough so that seal spring is locat-
ed on shaft sleeve. NOTE: Be careful not to
nick carbon seal face when passing it over end
of shaft sleeve.
Step 12. Slide impeller and gaskets (Key Nos. 12 and 11)
onto shaft with key (Key No. 3) in position. Be
sure to maintain proper order as shown in
Exploded View, Page 11.
Step 13. Install washer, gaskets, and impeller screw (Key
Nos. 14, 15, 16, 17) on end of shaft and tighten
screw until it is snug. This should locate seal in
place and bring seal faces together.
Step 14. Re-install motor, adapter and impeller assembly
on volute, using new gasket (Key No. 7).
Step 15. Re-install motor hold-down bolts.
Step 16. Check all bolts for tightness.
Step 17. Pumps below water level: Close drains; open
isolation valves to fill pump. Pumps above
water level: Prime pump. Open isolation valves
if they were closed at disassembly.
Step 18. When pump is full, close air vents.
Step 19. Reconnect power to pump and system is ready
for operation.
1" Standard Pipe
Stationary Seat
Cardboard
Washer
(Supplied with seal)
1422 1294
Figure 6

1
3
4
5
6
7
8
9
10 11
12
13 14 15
16 17
18
19 20
21
22
21
22A
1362 1094
Repair Parts 9
3 HP 5 HP 3 HP 5 HP
LTM-3 LTM-5 LTH-3 LTH-5
Key Part No. S40099 S40102 S40093 S40196
No. Description Used S40100 S40103 S40094 S40197
1Motor - 60 Cycle - 230V, Single Phase 1 C218-177 C218-180 C218-177 C218-180
1Motor - 60 Cycle - 230/460V, Three Phase 1 C218-179 C218-182 C218-179 C218-182
2O-Ring 1 U9-265 U9-265 U9-265 U9-265
2A Sleeve 1 C23-58 C23-58 C23-58 C23-58
3Key - Square 1 U65-42A U65-42A U65-42A U65-42A
4Water Slinger - Single Phase 1 C69-15 C69-15 C69-15 C69-15
4Water Slinger - 230/460V, Three Phase 1 C69-16 C69-15 C69-16 C69-15
5Capscrew - 3/8 - 16 x 7/8” Lg. 8 * * * *
6Adapter 1 C2-66 C2-66 C2-66 C2-66
7Gasket - Adapter 1 C20-46 C20-46 C20-46 C20-46
8Lockwasher - 3/8” 4 * * * *
9Capscrew - 3/8 - 16 x 1” Lg. 4 * * * *
10 Shaft Seal 1 U9-433SS U9-433SS U9-433SS U9-433SS
11 Gasket - Seal 1 C20-101 C20-101 C20-101 C20-101
12 Impeller 1 C5-246 C5-247 C5-248 C5-249
13 Wear Ring 1 J23-5 C23-14 J23-5 J23-5
14 Gasket 1 C20-100 C20-100 C20-100 C20-100
15 Washer - Impeller 1 C43-45SS C43-45SS C43-45SS C43-45SS
16 Gasket 1 C43-46 C43-46 C43-46 C43-46
17 Screw - Impeller - 3/8 - 16 x 3/4” Lg. 1 U30-72SS U30-72SS U30-72SS U30-72SS
18 Volute Diffuser (w/Wear Ring, Key No. 13) 1 C101-126 C101-126B C101-132 C101-132
19 Diffuser Ring 1 C21-2 C21-2 C21-2 C21-2
20 Pump Body 1 C76-12 C76-12C C76-12B C76-12
21 Pipe Plug - 1/4” NPT 2 * * * *
22 Capscrew - 5/16 - 18 x 3/4” Lg. 4 * * * *
* Purchase locally.

Repair Parts 10
1238 0894
1
23
45
6
SUCTION FLANGE ASSEMBLY
Key Part No. Part
No. Description Used Symbol
1Valve Plate 1 C61-5SS
2Gasket - Flange 1 C20-15
3Valve Washer 1 C43-15SS
4Machine Screw 1/4-20 x 1/2” 1 *
5Pipe Plug - 1/4” NPT Sq. Hd. 1 *
6Suction Flange 2” NPT 1 C3-22A
6Suction Flange 2-1/2” NPT 1 C3-74
6Suction Flange 3” NPT 1 C3-74B
•Nut, 1/4-20, Hex 1 35407-0071
Suction Flange Assembly-
Complete 1-1/2” NPT C203-22
Suction Flange Assembly-
Complete 2” NPT C203-22A
* Purchase locally.

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