MULTIQUIP ST3020B1 Guide

OPERATION AND PARTS MANUAL
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
MODEL ST3020B1/ST3020BCUL
SUBMERSIBLE PUMPS
Revision #2 (10/28/10)
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TABLE OF CONTENTS
Multiquip ST3020B1/BCUL
Submersible Pump
Table Of Contents.................................................... 2
Parts Ordering Procedures...................................... 3
Safety Information ................................................ 4-7
Dimensions.............................................................. 8
Specifications .......................................................... 9
Performance Curve................................................ 10
General Information............................................... 11
Components .......................................................... 12
Direct Power Operation ......................................... 13
Float Switches .................................................. 14-15
Float Switches (CB6 Control Box) ......................... 16
Float Switches (CB200 Control Box Old Style) ..... 17
Float Switches (CB200 Control Box New Style).... 18
Operation.......................................................... 19-24
Maintenance..................................................... 24-26
Troubleshooting ..................................................... 27
CB6 Wiring Diagram.............................................. 28
CB200 Wiring Diagram.......................................... 29
Explanation of Code in Remarks Column.............. 30
Suggested Spare Parts ......................................... 31
Component Drawings
Pump Assembly................................................ 32-33
Motor Assembly. ............................................... 34-35
Terms And Conditions Of Sale — Parts ................ 36
NOTICE
Specifications and part numbers are subject to change
without notice.
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SAFETY INFORMATION
Do not operate or service the equipment before reading
the entire manual. Safety precautions should be followed
at all times when operating this equipment.
Failure to read and understand the safety
messages and operating instructions could
result in injury to yourself and others.

The four safety messages shown below will inform you
about potential hazards that could injure you or others.The
safety messages specifically address the level of exposure
to the operator and are preceded by one of four words:
or 


Indicates a hazardous situation which, if not avoided,
 result in  or 

Indicates a hazardous situation which, if not avoided,
 result in  or 

Indicates a hazardous situation which, if not avoided,
 result in  or 
NOTICE
Addresses practices not related to personal injury.
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.
Burn hazards
Symbol Safety Hazard
Electric shock hazards
Rotating parts hazards
Pressurized fluid hazards
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
SAFETY INFORMATION


 operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.
Avoid wearing jewelry or loose fitting clothes that may
snag on the controls or moving parts as this can cause
serious injury.
 operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
 operate this equipment under the
influence of drugs or alcohol.
 clear the work area of any debris, tools, etc.
that would constitute a hazard while the equipment is
in operation.
No one other than the operator is to be in the working
area when the equipment is in operation.
 use the equipment for any purpose other than
its intended purposes or applications.
NOTICE

This equipment should only be operated by trained and
qualified personnel 18 years of age and older.

Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.
 use accessories or attachments that are not
recommended by Multiquip for this equipment. Damage
to the equipment and/or injury to user may result.
 know the location of the nearest

know the location of the nearest
first aid kit.
 know the location of the nearest phone or
keep
a phone on the job site.
Also, know the phone numbers
of the nearest ambulance, doctor and
fire department.
This information will be invaluable in the case of an
emergency.
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SAFETY INFORMATION


 operate the equipment in an explosive
atmosphere or near combustible materials.An
explosion or fire could result causing severe
bodily harm or even death.

Accidental starting can cause severe injury
or death.  place the ON/OFF
switch in the OFF position.

  place hands or fingers inside
pump when pump is running.

 disconnect any emergency or
safety devices. These devices are intended for operator
safety. Disconnection of these devices can cause severe
injury, bodily harm or even death. Disconnection of any
of these devices will void all warranties.

Risk of Electric Shock - This pump has not been
investigated for use in swimming pool or marine areas.


 restrict the flow of the discharge hose as it may
cause the pump to overheat.

Be careful of discharge hose whipping under pressure.

 check pump oil level only when pump is cool.
Expansion due to heat may cause hot oil to spray from
the oil plug when the oil plug is removed. The possibility
of severe scalding may exist.
NOTICE

 place the pump in an upright position on a
platform before using.The platform will prevent the pump
from burrowing itself on soft sand or mud.

operate pump on its side.

 allow the pump to freeze in water.

 leave an open pump chamber unattended.

 keep the machine in proper running condition.

 attempt to thaw out a frozen pump by using
a torch or other source of flame. Application of heat in
this manner may heat the oil in the seal cavity above the
critical point, causing pump damage.
 pump water with a temperature greater than
104°F.
 pump liquids containing acid or alkali.
 check strainer before pumping. Make sure
strainer is not clogged. Remove any large objects, dirt
or debris from the strainer to prevent clogging.
 use a large basket strainer when pumping
water that contains large debris.
 flush pump (clean) after use when pumping
water concentrated with heavy debris.It is very important
to always flush the pump before turning it off to prevent
clogging.
Fix damage to machine and replace any broken parts
immediately.

store equipment properly when it is not being
used.Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel.
 lubricate components or attempt service on a
running machine.
 run pump dry.

allow the machine a proper amount of time to
cool before servicing.
Keep machine in proper running condition.


The electrical voltage required to operate
pump can cause severe injury or even death
through physical contact with live circuits.
 disconnect electrical power from
pump before performing maintenance on
pump.

To reduce the risk of electric shock, connect only to a
circuit protected by a Ground-Fault Circuit-Interrupter
(GFCI).
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SAFETY INFORMATION
NOTICE
make certain that the voltage supplied to the
pump is correct. Always read the pump’s nameplate to
determine what the power requirements are.
Power Cord/Cable Safety

 let power cords or cables lay in water.
 stand in water while AC power cord is connected
to a live power source.
 use damaged or worn cables or cords. Inspect
for cuts in the insulation.
 grab or touch a live power
cord or cable with wet hands. The
possibility exists of electrical shock,
electrocution or death.
Make sure power cables are securely connected to the
motor's output receptacles. Incorrect connections may
cause electrical shock and damage to the motor.

 attempt to use the power cord as a lifting or
lowering device for the pump.
NOTICE
make certain that proper power or extension
cord has been selected for the job. See Cable Selection
Chart in this manual.
Grounding Safety

 make sure pump is grounded.
use gas piping as an electrical ground.
 make sure that electrical circuits are properly
grounded to a suitable earth ground (ground rod) per
the National Electrical Code (NEC) and local codes
before operating generator. Severe injury or death by
electrocution can result from operating an ungrounded
motor.



have a qualified electrician perform the control
box installation. The possibility exists of electrical shock
or electrocution.
NOTICE
 mount control box in a vertical position
protected from harsh environmental elements.



When raising or lowering of the pump is required, always
attach an adequate rope or lifting device to the correct
lifting point (handle) on the pump.
NOTICE
 lift machine to unnecessary heights.
 lift the equipment while the electric motor is
running.

NOTICE
 shut down pump before transporting.
 tie down equipment during transport by
securing the equipment with rope.

CE
  pour waste or oil directly onto
the ground, down a drain or into any water
source.
Contact your country's Department of Public
Works or recycling agency in your area and arrange for
proper disposal of any electrical components, waste or
oil associated with this equipment.
When the life cycle of this equipment is over it is
recommended that the pump casing and all other metal
parts be sent to a recycling center
Metal recycling involves the collection of metal from
discarded products and its transformation into raw
materials to use in manufacturing a new product.
Recyclers and manufacturers alike promote the process
of recycling metal. Using a metal recycling center
promotes energy cost savings.
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DIMENSIONS
2.0 in
(50 mm)
2.9 in
(75 mm)
3.3 in
(83 mm)
21.6 in
(548 mm)
24.8 in
(631 mm)
6.3 in
(160 mm)
27.9 in
(708 mm)
6.7 in
(170 mm)
6.9 in
(176 mm)
NPT3
NEMA L6-20P PLUG
590.6 in
(15000 mm)
0.9 in
(23 mm)
Figure 1. ST3020B1/BCUL Pump Dimensions
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SPECIFICATIONS
1.  – Upon start-up, the pump "kicks" in the opposite direction of motor rotation. The correct rotation is
counterclockwise (CCW) as viewed from the impeller end of the pump.
2.  – Use ISO VG32 oil grade. Fill oil cavity 75% to 85% full (allow air space for expansion).
3.  - Control box (Table 2) may be required for certain pumping applications.
Table 1. Specifications
Model ST3020B1/BCUL
Type Centrifugal Submersible Pump
Impeller Cast Ductile Iron
Suction & Discharge Size 3 in. (76 mm)
Maximum Pumping Capacity 145 gallons/minute (548 liters/minute)
Max Head 66 ft. (20.1 meters)
Power 2 HP (1.5 kW)
Voltage Phase 1Ø 230 V
Starting Amps 52.2 A
Running Amps 10.5 A
Control Box Required See Note 3
Temperature Range 32°F ~ 86°F (0°C ~ 30°C)
Thermal Overload Protection YES
Rotation CCW (See Note 1)
Mechanical Seal Oil Capacity 18 in3(300 cc) (See Note 2)
Power Cable Length 50 ft (approx.15 m)
Dry Net weight 67 lb (31 kg)
Table 2. 
Model  UL/CSA
Listed

Protection

Capability
CB6 230 VAC, 60 Hz Single Phase YES NO YES
CB200 230 VAC, 60 Hz Single Phase YES YES YES
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PERFORMANCE CURVE
Figure 2. Pump Performance Curve
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