Multiquip ST-2005 User Manual

OPERATION AND PARTS MANUAL

Submersible Pumps

Model ST-2005 Series

Revision #3 (09/21/04)

THIS MANUAL MUST ACCOMPANY

THE EQUIPMENT AT ALL TIMES.

HERE'S HOW TO GET HELP

PLEASE HAVE THE MODEL AND SERIAL

NUMBER

MULTIQUIP CORPORATE OFFICE

18910 Wilmington Ave. 800-421-1244 Carson, CA 90746 Email: mq@multiquip.com Internet: www.multiquip.com

PARTS DEPARTMENT

800-427-1244 310-537-3700

MAYCO PARTS

800-306-2926 310-537-3700

SERVICE DEPARTMENT

800-421-1244 310-537-3700

TECHNICAL ASSISTANCE

800-478-1244

WARRANTY DEPARTMENT

800-421-1244, 310-537-3700,

ON-HAND

EXT.

279

EXT.

279

WHEN CALLING

FAX:

310-537-3927

FAX:

800-672-7877

FAX:

310-637-3284

FAX:

800-672-7877

FAX:

310-637-3284

FAX:

310-537-4259

FAX:

310-631-5032

FAX:

310-537-1173

permission. All other trademarks are the property of thier respective owners and used with permission. This manual

remain with the unit if resold. The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations are

based on the this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifications, design or the information published in this publication at any time without notice and without incurring any obligations.

MUST accompany the equipment at all times. This manual is considered a permanent part of the equipment and should

MQ Model ST-2005 Series Submersible Pumps.

Illustrations, descriptions, references and technical data contained in

To find the latest revision of this

publication, visit our website at:

www.multiquip.com

PAGE 2 — ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04)

ST-2005 SERIES SUB. PUMP — TABLE OF CONTENTS

Multiquip ST-2005 Series Submersible Pumps

Here's How To Get Help ............................................ 2

Table Of Contents ..................................................... 3

Parts Ordering Procedures ....................................... 4

Safety Message Alert Symbols ................................. 5

Rules For Safe Operation ...................................... 6-7

Dimensions ............................................................... 8

Specifications (Pump/Control Box) ...........................9

General Information ................................................ 10

Components............................................................ 11

Float Switches .........................................................12

Float Switch (Piggy-Back) .......................................13

Float Switch (Control Box) ......................................14

Operation ................................................................15

Control Box Installation ..................................... 16-17

Clean-up .................................................................18

Maintenance ........................................................... 19

Troubleshooting (Pump).......................................... 20

Performance Curves ...............................................21

Wiring Diagrams (Electric Motor/Control Box) ........22

Explanation Of Codes In Remarks Column ............24

Suggested Spare Parts ........................................... 25

Submersible Pump Component Drawings

ST-2005T& ST-2005TCUL Pump Assemblies ... 26-27 ST-2005, ST-2005A, & ST-2005CUL Pump

Assemblies ......................................................... 28-31

ST-2005SB Pump Assembly ............................. 32-33

ST-2005T Electric Motor Assembly ................... 34-35

ST-2005TCUL Electric Motor Assembly ............ 36-37

ST-2005CUL Electric Motor Assembly .............. 38-39

ST-2005SB Electric Motor Assembly ................ 40-41

Terms and Condition of Sale

As a continuing effort to update

NOTE

our parts book, contact the MULTIQUIP literature department for the latest revision of your "Operation and Parts Manual"

— Parts .....................42

ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04) — PAGE 3

ST-2005 SERIES SUB. PUMP — PARTS ORDERING PROCEDURES

When ordering parts,

please supply the following information:

❒❒

❒ Dealer account number

❒❒ ❒❒

❒ Dealer name and address

❒❒ ❒❒

❒ Shipping address (if different than billing address)

❒❒ ❒❒

❒ Return fax number

❒❒ ❒❒

❒ Applicable model number

❒❒ ❒❒

❒ Quantity, part number and description of each part

❒❒ ❒❒

❒ Specify preferred method of shipment:

❒❒

✓ FedEx or UPS Ground ✓ FedEx or UPS Second Day or Third Day ✓ FedEx or UPS Next Day ✓ Federal Express Priority One ✓ DHL ✓ Tr u c k

Note: Unless otherwise indicated by customer, all orders are treated as “Standard Orders”, and will ship within 24 hours. We will make every effort to ship “Air Shipments” the same day that the order is received, if prior to 2PM west coast time. “Stock Orders” must be so noted on fax or web forms.

Here’s how to get help...

Please have the model and serial number on hand when calling.

MULTIQUIP CORPORATE OFFICE

18910 Wilmington Ave. 800-421-1244

FAX:

Carson, CA 90746 Email: mq@multiquip.com Internet: www.multiquip.com

PARTS DEPARTMENT

800-427-1244 310-537-3700

MAYCO PARTS

800-306-2926 310-537-3700

SERVICE DEPARTMENT

800-421-1244 310-537-3700

TECHNICAL ASSISTANCE

800-478-1244

WARRANTY DEPARTMENT

800-421-1244, 310-537-3700,

EXT. EXT.

279 279

310-537-3927

FAX:

800-672-7877

FAX:

310-637-3284

FAX:

800-672-7877

FAX:

310-637-3284

FAX:

310-537-4259

FAX:

310-631-5032

FAX:

310-537-1173

Place Your Parts Order Via Web or Fax

For Even More Savings!

(Domestic USA Dealers Only)

Extra Discounts!

All parts orders which include complete part numbers and are received by our automated web parts order system, or by fax qualify for the following extra discounts:

Ordered Standard Stock orders

via orders ($750 list and above)

Fax 3% 10%

Web 5% 10%

Special freight allowances when you order 10 or more line items via Web or Fax!**

FedEx Ground Service

No other allowances on freight shipped by any other carrier. **Common nuts, bolts and washers (all items under $1.00

list price) do not count towards the 10+ line items.

NOTE: DISCOUNTS ARE SUBJECT TO CHANGE

at no charge for freight

MULTIQUIP INC.

18910 WILMINGTON AVENUE POST OFFICE BOX 6254 CARSON, CALIFORNIA 90749 310-537-3700 • 800-421-1244 FAX: 310-537-3927 E-MAIL: mq@multiquip.com INTERNET: www.multiquip.com

PAGE 4 — ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04)

Direct TOLL-FREE access

to our Parts Department:

Toll-free nationwide — 800-427-1244

Toll-free FAX — 800-6-PARTS-7

(800/672-7877)

ST-2005 SERIES SUB. PUMP — SAFETY MESSAGE ALERT SYMBOLS

FOR YOUR SAFETY AND THE SAFETY OF OTHERS!

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.

This Owner's Manual has been developed to provide complete instructions for the safe and efficient

NOTE

SAFETY MESSAGE ALERT SYMBOLS

The three (3) 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 three words: DANGER, WARNING, or CAUTION.

operation of the Multiquip

2005 Series Submersible Pumps.

Before using these pumps, ensure that the operating individual has read and understands all instructions in this manual.

Model ST-

HAZARD SYMBOLS

Rotating Parts

NEVER operate equipment with covers,

or guards removed. Keep fingers, hands, hair and clothing away from all moving parts to prevent injury.

Accidental Starting

ALWAYS place the power source circuit

breaker or ON/OFF switch in the OFF position, when the pump is not in use.

Sight and Hearing hazard

DANGERDANGER

DANGER

DANGERDANGER

You WILL be NOT follow directions.

WARNINGWARNING

WARNING

WARNINGWARNING

You CAN be NOT follow directions.

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

You CAN be

Potential hazards associated with the ST-2005 series submersible pumps operation will be referenced with Hazard Symbols which appear throughout this manual, and will be referenced in conjunction with Safety Message Alert Symbols.

KILLED

INJURED

if you DO NOT follow directions.

SERIOUSLY

injured if you DO

Other important messages are provided throughout this manual to help prevent damage to your submersible pump, other property, or the surrounding environment.

ALWAYS wear approved eye and hearing protection, if required.

Respiratory Hazard

ALWAYS wear approved respiratory

protection, if required.

Equipment Damage Messages

This submersible pump, other property, or the surrounding

NOTE

environment could be damaged if you do not follow instructions.

ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04) — PAGE 5

ST-2005 SERIES SUB. PUMP — RULES FOR SAFE OPERATION

■

ALWAYS make sure submersible pump is grounded.

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Failure to follow instructions in this manual may lead to serious injury or even death! This equipment is to be operated by trained and qualified personnel only! This equipment is for industrial use only.

The following safety guidelines should always be used when operating the ST- 2005 Series Submersible Pumps:

GENERAL SAFETY

■

DO NOT operate or servicing this equipment before reading this entire manual.

■

This equipment should not be operated by persons under 18 years of age.

■

NEVER operate this equipment without proper protective clothing, shatterproof glasses, steel-toed boots and other protective devices required by the job.

■

NEVER use gas piping as an electrical ground.

■

DO NOT place hands or fingers inside pump when pump is running.

■

ALWAYS make certain that the voltage supplied to the pump is correct. Always read the pump's nameplate to determine what the power requirements are. The ST-2005 series submersible pumps require 115 VAC, 60 Hz (single-phase) for normal operation.

■

DO NOT restrict the flow of the discharge hose as it may cause overheating.

■

Be careful of discharge whipping under pressure.

■

Make sure pump installation is accordance with national and local electrical codes.

■

ALWAYS have a qualified electrician perform the pump wiring installation.

■

ALWAYS mount the control box in a vertical position protected from the elements.

■

NEVER operate this equipment when not feeling well due to fatigue, illness or taking medicine.

■

NEVER operate this equipment under the influence or drugs or alcohol.

■

NEVER use accessories or attachments, which are not recommended by Multiquip for this equipment. Damage to the equipment and/or injury to user may result.

■

Manufacturer does not assume responsibility for any accident due to equipment modifications.

■

Whenever necessary, replace nameplate, operation and safety decals when they become difficult read.

■

ALWAYS check the machine for loosened threads or bolts before starting.

■

NEVER operate the submersible pump in an explosive atmosphere or near combustible materials. An explosion or fire could result causing severe

bodily harm or even death.

■

NEVER handle pump's AC power cord with NEVER let an extension cord or plug connection NEVER

to a power source. NEVER use a pump with a defective, frayed power cord.

Check the power cord on the pump for cuts in the insulation. NEVER use a extension cord that is frayed or damaged

where the insulation has been cut. ALWAYS make certain that proper extension cord has been

selected for the job. See Table 4. NEVER attempt to use the power cord as a lifting or lowering

device for the submersible pump. When raising or lowering of the submersible pump is

required, always attach an adequate rope or lifting device to the correct lifting point (handle) on the pump.

ALWAYS place the pump in an up-right position on a platform before using. The platform will prevent the pump from burrowing itself on soft sand or mud.

NEVER operate pump on its side. DO NOT allow the pump to freeze in water. NEVER leave an open pump chamber unattended.

The electrical voltage required to operate the pump can cause severe injury or even death through physical contact with live circuits. from the pump before performing maintenance on the pump.

stand in water

while AC power cord is connected

ALWAYS

disconnect the electrical power

wet hands

lay in wate

PAGE 6 — ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04)

ST-2005 SERIES SUB. PUMP — RULES FOR SAFE OPERATION

■

ALWAYS make sure that electrical circuits are properly

grounded

local codes before operating pump. by

electrocution

per the

National Electrical Code

Severe injury

can result from operating an

(NEC) and

death

ungrounded

pump.

■

NEVER use this pump to remove water from a swimming pool when

people are in the water

■

ALWAYS be sure the operator is familiar with proper safety precautions and operations techniques before using submersible pump.

■

ALWAYS 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.

■

DO NOT 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.

■

DO NOT pump water greater than 104° Fahrenheit. Also DO NOT pump liquids containing acid or alkali.

. Emergencies

■

ALWAYS know the location of the nearest

ALWAYS know the location of the nearest and

fire extinguisher

first aid kit

■

ALWAYS check strainer before pumping. Make sure strainer is not clogged. Remove any large objects, dirt or debris from the strainer to prevent clogging.

■

ALWAYS use a large basket strainer when pumping water that contain large debris.

■

ALWAYS flush pump after use when pumping water concentrated with heavy debris.

water

. It is very important to always flush the pump before

turning it off to prevent clogging.

■

ALWAYS store equipment properly when it is not being used. Equipment should be stored in a clean, dry location out of the reach of children.

■

ALWAYS read, understand, and follow procedures in Operator’s Manual before attempting to operate equipment.

Flush with clean fresh

■

Maintenance Safety

■

NEVER lubricate components or attempt service on a running machine.

■

ALWAYS allow the machine a proper amount of time to cool before servicing.

■

Keep the machinery in proper running condition.

In emergencies

nearest phone or

always

know the location of the

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.

■

Fix damage to the machine immediately and always replace broken parts.

ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04) — PAGE 7

ST-2005 SERIES SUB. PUMP — DIMENSIONS

Figure 1. ST-2005T Dimensions

PAGE 8 — ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04)

ST-2005 SERIES SUB. PUMP — SPECIFICATIONS

SNOITACIFICEPS.1ELBAT

ledoMT5002-TSC5002-TSS5002-TSLUC5002-TSLUCT5002-TS

epyT

rellepmIelitcuDnorItsaCelitcuDnorItsaCleetSsselniatSelitcuDnorItsaCelitcuDnorItsaC

eziSegrahcsiD&noitcuS)mm15(.ni00.2)mm15(.ni00.2)mm15(.ni00.2)mm15(.ni00.2)mm15(.ni00.2

yticapaCgnipmuPmumixaM

retemaiDsdiloS.xaM).mm52(.ni00.1A/NA/NA/N).mm52(.ni00.1

daeHxaM)sretem3.01(.tf43)sretem8.21(tf24)s

rewoP)wk73.0(PH5.0)wk73.0(PH5.0)wk73.0(PH5.0wk73.0(PH5.0)wk73.0(PH5.0

esahPegatloVV511Ø1V511Ø1V511Ø1V511Ø1V511Ø1

spmAgnitratS5214711452

spmAgninnuR2.68 7.682.6

deriuqeRxoBlortnoC)3eto

noitcetorPdoalrevOlamrehTSEYSEYSEYSEYSEY

noitatoR)1etoN(WCC)1etoN(WCC)1eto

yticapaClaesliOlacinahceM)2etoN(.cc081)2etoN(.cc051)2etoN(.cc032)2etoN(.cc081)2etoN(.cc081

ycneuqerFkcehC).srh003(ylhtnoM).srh003(ylhtnoM).srh003(ylhtnoM).srh003(ylhtnoM).srh003(ylhtnoM

N(ON)3etoN(ON)3etoN(ON)3etoN(ON)3etoN(ON

hsarTelbisrembuS

pmuP

etunim/snollag27

)etunim/sretil372(

lagufirtneC

pmuPelbisrembuS

etunim/snollag58

)etunim/sretil223(

lagufi

rtneC

pmuPelbisrembuS

etunim/snollag07

)etunim/sretil562(

retem9.01(.tf63sretem8.21(tf24)sretem3.01(.tf43

N(WCC)1etoN(WCC)1etoN(WCC

lagufirtneC

pmuPelbisrembuS

etunim/snollag58

)etunim/sretil223(

hsarTelbisrembuS

pmuP

etunim/snollag27

)etunim/sretil372(

)deep

S(PMR03-/+055303-/+055303-/+055303-/+055303-/+0553

htgneLelbaCrewoP).mc6.7(.TF52).mc6.7(.TF52).mc6.7(.TF52).mc6.7(.TF52).mc6.7(.TF52

thgiewteNyrD).gK62(.sbl75).gK71(.sbl83).gK81(.sbl93).gK71(.sbl83).gK62(.sbl75

1. Motor Rotation – 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. Mechanical Oil Seal – Use a good grade 10 weight non-detergent hydraulic oil (i.e. Shell Turbo 32 or equivalent). Fill oil cavity 75% to 85% full (allow air space for expansion).

3. Control Box - Control box (Table 2) may be required for certain pumping applications.

snoitacificepSxoBlortnoC.2elbaT

.oNledoMepyTegatloV

3BC

ASC/LU

detsiL

-elgniSzH06,CAV511

esahP

SEYSEYSEY

lamrehT

daolrevO

noitcetorP

taolF

hctiwS

ibapaC

ytil

ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04) — PAGE 9

ST-2005 SERIES SUB. PUMP — GENERAL INFORMATION

Introduction

The Multiquip Model ST-2005 series submersible pumps are designed to pump water and is used for the draining (dewatering) of swimming pools, well casings construction sites, cofferdams, manholes, transformer vaults and excavations.

A cast iron ductile type impeller is attached to the output shaft of a 0.5 HP electric motor which provides adequate power for general purpose pumping. This submersible pump is supplied complete with an electric power cable, and a discharge port located at the top of the pump which accepts a 2-inch hose.

This pump is ideal for portability because of its light weight and carrying handle. For reliability and long life, a mechanical seal provides shaft sealing, with an oil chamber separating the pump section from the motor.

The pump when in use, should be installed as free standing (upright position) on its strainer base. A 2-inch discharge hose (not supplied) should be connected to the discharge port located on top of the pump. The discharge hose should be adequately supported to avoid stress on the pump.

For maximum water flow, the discharge hose should be kept as short as possible, and with minimum elevation above the pump. Remember as the length and/or height of the discharge hose is increased, the flow of water will be reduced. Also any reduction in the hose size, and any fittings such as valves or outlet nozzles, will restrict the water flow.

To avoid back-siphonage when the pump is switched off, ensure that the end of the discharge hose is installed above the water level at the final discharge point.

When the pump is switched off, the water remaining in the hose will run back through the pump. This can be avoided by placing a non-return valve in the hose nearest the pump.

NEVER use this submersible pump to pump flammable liquids or operate in a explosive or flammable environment.

Avoid using this pump in conditions where mud, grit, silt or other debris are present. These conditions could cause blockage and cause excessive pump wear.

DO NOT install the pump directly into an area where there is a heavy build-up of mud, grit, silt or debris. If this condition is present, install the pump on a platform before operating.

This pump must always be positioned on a platform in an upright position. NEVER operate the pump by a suspended rope. To prevent large solids from entering the pump, install a wire mesh screen or similar barrier around the pump.

If the pump was used to pump water containing mud, silt, use clean water to flush out the pump after each use.

DO NOT allow the pump to run dry, as this will damage the pump. During maintenance, dry running is permissible but only for a few seconds.

NEVER lift the pump by its electrical power cord. ALWAYS lift the pump by its carrying handle or attach a rope to the carrying handle.

A pump fully submerged pump in liquid will not freeze, unless the liquid freezes. DO NOT allow a partially submerged pump to freeze. The expansion of water freezing in the volute may crack the pump, causing expensive repairs. If there is any danger of the pump being subjected to freezing temperatures, Lift the pump from water and allow it to drain thoroughly.

If the pump jams or the pump rotor locks for any reason, disconnect the pump from the power source immediately. Allowing the pump motor to cycle ON and OFF under an overload condition can burn out the motor.

When replacement of nuts and bolts is required, use only recommended parts as referenced in the parts section of this manual. This pump uses measurement threads.

Control Box Installation Warnings

When installing the CB3 control box, the possibility exists of

electrocution

untrained personnel perform the installation. ALWAYS have qualified service personnel (licensed electrician) perform the installation.

Explosion or Fire Hazard exists if this pump is used with

NOT use this pump with

liquids

hazardous locations as defined by the National Electrical Code, ANSI/NFPA 70.

Failure to follow the above referenced precautions could result in serious injury or death! Replace pump cord immediately if cord becomes damaged or severed. This pump must be installed in accordance with National Electric Code ANSI/NFPA 70 so as to prevent moisture from entering or accumulating with the boxes, conduit bodies fittings, float housing or cable.

metric

threads. DO NOT use english

DANGERDANGER

DANGER

DANGERDANGER

electrical shock

and possibly

WARNINGWARNING

WARNING

WARNINGWARNING

flammable liquids

. DO NOT install this pump in

death!

NEVER have

. DO

flammable

PAGE 10 — ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04)

ST-2005 SERIES SUB. PUMP — COMPONENTS

Figure 2. Submersible Pump Components

Figures 2 shows the location of the basic components, for the ST-2005 series submersible pumps. Listed below is a brief explanation of each component.

1. Strainer Base – This strainer base is made of stainless steel which is resistant to hardware corrosion. DO NOT pump large objects or debris with this pump. This pump is for pumping water only. For de-watering purposes, always place the strainer base on a platform.

2. Volute/Impeller – Impellers are constructed of high-chrome ductile iron to minimizes wear and prolong service life.

3. Electric Motor – All 2005 series submersible pumps utilizes a 60 Hz, single-phase, 115 VAC, 0.5 HP electric motor. Consult with a connecting motor to a power source. Observe all city and local safety codes.

4. Discharge Port – Connect a 2-inch hose to this port. Remember to adequately support the discharge hose to avoid stress on the pump.

5. AC Power Cable – This unit is supplied with a 25 ft. (7.6 meters) AC power cable. Always check the cable for signs of wear. NEVER! use a defective power cable. Replace the cable immediately if the cable is worn or defective.

licensed electrician

before

6. Carrying Handle – Always carry the submersible pump by its handle. NEVER! carry the pump by its power cord. Carrying or lifting the pump by the power cord, will cause undue stress on the cord, and ultimately the cord will become dislodged from the pump.

7. Thermal Overload Protection – This pump is equipped with a thermal overload protection device that will shutdown the motor in the event of high operating temperatures. The motor will automatically restart once the temperature returns to an acceptable operating temperature.

8. Mechanical Oil Seal – This oil filled seal provides lubrication when running the pump dry. NEVER! run the pump dry. Running the pump dry will cause severe damage to the pump.

9. Mechanical Oil Seal Plug – Remove this plug to check and add hydraulic oil (Shell 32 or equivalent) to the oil cavity. This oil protects the mechanical seal. Oil cavity should be full enough to cover seal spring.

ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04) — PAGE 11

ST-2005 SERIES SUB. PUMP — FLOAT SWITCHES

Float Switch Theory

Mercury monitoring is a mercury-switch actuated, liquid level control that has proven to be more economical and longer lasting than other types of liquid-level control systems, easily replacing and improving upon diaphram switches, air bubble systems and electro-mechanical switches most often relied upon in the past.

How It Works

There is a tilt-sensitive mercury switch hermetically sealed within each float. As the liquid level (water) rises or falls, the float changes its angle until the mercury switch makes (close, Figure 4) or breaks (open, Figure 5) the circuit. Maximum pumping range is

Design Features

Constructed of rigid, durable ABS polymer ultrasonically welded. The all-steel mercury switch is held by positioning pins. Interior is filled with cell foam.

■

Suitable for most liquid environments.

■

Hermetically sealed.

■

Thick-walled non-corrosive PVC plastic enclosure.

■

Pressure tested to 60 ft. (18.2 meters).

■

Mercury switch reliability, proven to 500,000 cycles.

■

Standard SJO, 16-gauge, 2 conductor cord (20 ft./6.09 m).

120 degrees. See Figure 3 below.

Figure 3. Pumping Range (Float Switch)

Pumping Range

The pumping range of the pump is determined by the float switch tether cord. Use Table 3 as guide line to determine your required pumping range. Pumping ranges are based on

non-turbulent

conditions. Range may vary due to water temperature and cord shape. Please note as the tether length increases, so does the variance of the pumping range.

egnaRgnipmuP.3elbaT

htgneLrehteT

egnaRgnipmuP

.ni2

.mc80.5

.ni6

.mc42.51

.ni4

.mc61.01

.ni01

.mc4.52

.ni6

.mc42.51

.ni41

.mc65.53

.ni8

.mc23.02

.ni81

.mc27.54

Figure 4. Float Switch (Closed)

Figure 5. Float Switch (Open)

.ni01

.mc4.52

.ni22

.mc88.

.ni21

.mc84.

.ni72

.mc85.86

.ni41

.mc65.53

.ni13

.mc47.87

.ni61

.mc46.04

.ni53

.mc9.88

PAGE 12 — ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04)

ST-2005 SERIES SUB. PUMP — FLOAT SWITCH (PIGGY-BACK)

Float Switch

Single

dual

control float switches can be used for the unattended operation of the submersible pump. When using the

back power configuration

back), the SW-1 (single float switch) or SW-2 (dual float switch) are required. Figure 6 is an example of a single float switch application.

Mounting The Float Switch

1. Determine the required Figure 6 and Table 3.

2. Place the cord into the clamp as shown in Figure 6.

3. Secure the clamp to the discharge hose as shown in Figure

5. DO NOT install cord under hose clamp.

4. Using a screwdriver, tighten the hose clamp. DO NOT over- tighten. Make sure the float cord is not allowed to touch the excess hose clamp band during operation.

(plug), the ST-2005 series pumps DO NOT require the use of a control box. In this configuration (piggy-

cord tether length

as shown in

NOTE

Figure 6 shows a application. For dual float switch capability use a type float switch .

single float

Model SW-2

piggy-

switch

mercury

Figure 6. Single Float Switch

Application Diagram

ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04) — PAGE 13

ST-2005 SERIES SUB. PUMP — FLOAT SWITCH (CONTROL BOX)

Control Box (CB3)

For special remote pumping applications of the submersible pump, a control box ( control box provides watertight housing and glands to prevent water from leaking into the box, and a float switch interface. When using the CB3 control box, only the the CB3 control box. See page 22 for a wiring diagram of the control box.

SW-1WOP float switch (2)

can be used (no plug, bare wires). Shown below (Figure 7) is a wiring layout of

Model CB3

) may be required. This water resistant

Figure 7. CB3 Control Box and Dual Float Switch

Application Diagram

PAGE 14 — ST-2005 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #3 (09/21/04)

+ 30 hidden pages