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OPERATION AND PARTS MANUAL
Multiquip
Submersible Pump
Model ST-3050D
Revision #1 (11/18/02)
MULTIQUIP INC. PARTS DEPARTMENT:
18910 WILMINGTON AVENUE 800/427-1244
CARSON, CALIFORNIA 90746 FAX: 800/672-7877
310 - 537-3700
SERVICE DEPARTMENT:
800/421-1244 NATIONWIDE
800/478-1244
FAX: 310 - 537-3927
FAX: 310 - 537- 4259
© COPYRIGHT 2002, MULTIQUIP INC.
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HERE'S HOW TO GET HELP PLEASE HAVE THE MODEL AND SERIAL NUMBER ON-HAND WHEN CALLING PARTS DEPARTMENT 800/427-1244 or 310/537-3700 FAX: 800/672-7877 or 310/637-3284 SERVICE DEPARTMENT 800/478-1244 or 310/537-3700 FAX: 310 - 537-4259 WARRANTY DEPARTMENT 800/421-1244, EXT. 279 or 310/537-3700 FAX: 310 - 537-1173 MAIN 800/421-1244 or 310/537-3700 FAX: 310 - 537-3927 PAGE 2 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)
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ST-3050D SUBMERSIBLE PUMP — TABLE OF CONTENTS 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 Specifications (Pump) ...............................................7 NOTE General Information...................
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PARTS ORDERING PROCEDURES ■■■■■ 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: UPS Ground UPS Second Day or Third Day* UPS Next Day* Federal Express Priority One (please provide us with your Federal Express account number)* Airborne Express* Truck or parcel post *Norma
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ST-3050D SUBMERSIBLE PUMP— SAFETY MESSAGE ALERT SYMBOLS FOR YOUR SAFETY AND THE SAFETY OF OTHERS! HAZARD SYMBOLS Safety precautions should be followed at all times when operating Rotating Parts this equipment. Failure to read and understand the Safety Messages and Operating Instructions could result in injury to yourself and others. NEVER operate equipment with covers, This Owner's Manual has been or guards removed. Keep fingers, hands, developed to provide complete hair and clothing away fro
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ST-3050D SUBMERSIBLE PUMP — RULES FOR SAFE OPERATION ■ ALWAYS make sure submersible pump is grounded. CAUTION: ■ NEVER use gas piping as an electrical ground. Failure to follow instructions in this manual may lead to serious injury or even death! This ■ DO NOT place hands or fingers inside pump when pump is equipment is to be operated by trained and running. qualified personnel only! This equipment is for ■ ALWAYS make certain that the voltage supplied to the pump industrial use only. is correc
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ST-3050D SUBMERSIBLE PUMP — RULES FOR SAFE OPERATION ■ ALWAYS make sure that electrical circuits are properly . Emergencies grounded per the National Electrical Code (NEC) and ■ ALWAYS know the location of the nearest fire extinguisher. local codes before operating pump. Severe injury or death by electrocution can result from operating an 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 prop
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ST-3050D SUBMERSIBLE PUMP — SPECIFICATIONS Table 1. Specifications (Pump) MD odel ST-3050 Tp ype Submersible Trash Pum S) uction & Discharge Size 3.00 in. (76 mm. 270 gallons/minute Maximum Pumping Capacity (1,022 liters/minute) M) ax. Solids Diameter 2.00 in. (51 mm. M) ax. Lift 25 ft. (7.62 meters M) ax. Head 86 ft. (26.00 meters P) ower 5 HP (3.75 Kw Voltage Phase 230/460 3ø Pump 77 @ 230 VAC Starting Amps 39 @ 460 VAC 14.2 @ 230 VAC Running Amps 7.1 @ 460 VAC Cs ontrol Box Required Ye Ts her
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ST-3050D SUBMERSIBLE PUMP — GENERAL INFORMATION This pump must always be positioned on a platform in an upright Introduction position. NEVER operate the pump by a suspended rope. To The Multiquip Model ST-3050D submersible pump is designed prevent large solids from entering the pump, install a wire mesh to pump water and is used for the draining (de-watering) of screen or similar barrier around the pump. swimming pools, well casings construction sites, cofferdams, manholes, transformer vaults an
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ST-3050D SUBMERSIBLE PUMP — COMPONENTS Figure 1. Submersible Pump Components Figures 1 shows the location of the basic components, for the 6. Carrying Handle – Always carry the submersible pump ST-3050D Submersible Pump. Listed below is a brief explanation by its handle. NEVER! carry the pump by its power cord. of each component. Carrying or lifting the pump by the power cord, will cause undue stress on the cord, and ultimately the cord will 1. Strainer Base – This strainer base is made of st
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ST-3050D SUBMERSIBLE PUMP — APPLICATION (FLOAT SWITCHES) Float Switch Theory Float Switch (Dual) There is a tilt-sensitive mercury switch hermetically sealed within Float switches (Figure 2) are used for the unattended operation each float. As the liquid level (water) rises or falls, the float changes of the submersible pump. The ST-3050D pump requires the use its angle until the mercury switch makes (close) or breaks (open) of a control box to perform this function. Shown in Figure 2 is an the
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ST-3050D SUBMERSIBLE PUMP — CONTROL BOXES Control Boxes CONTROL Control boxes (Figure 3) are available for remote control and BOX thermal shut-down capability for the submersible pump. These water resistant control boxes provide electronic overload protection, watertight housing and glands to prevent water from CAUTION! CAUTION! HIGH HIGH leaking into the box, and a float switch interface. VOL VOLT TAGE! AGE! There are various control box models to choose from, reference CB200 Table 2 for the
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ST-3050D SUBMERSIBLE PUMP/CTRL. BOX — INSTALLATION (CB200) POWER CORD REQUIREMENTS DANGER: When routing the three phase power via a power cord to the control box, ALWAYS use the correct wire size. Please reference Table 3 below (Cord Length/Wire Size) to determine the correct wire size. Incorrect wire size can adversely affect the performance of the pump. To place the ST-3050D submersible pump into operation requires the use of a control box. The control box contains the necessary electronics
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ST-3050D SUBMERSIBLE PUMP — 230/460 VAC VOLTAGE SELECTION 230/460 VAC Voltage Selection 3. Re-install the power cord gland assembly back into the pump's cavity. Make sure that the gland is seated correctly. The ST-3050D submersible pump is factory set at 230 This will prevent any connector pins from bending or VAC. To change the voltage from 230 VAC to 460 VAC, breaking. perform the following: 4. Insert the four retaining screws and tighten securely 1. Remove the four retaining screws that sec
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ST-3050D SUBMERSIBLE PUMP — PUMP WIRING DIAGRAM Figure 5. Pump Wiring Diagram ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 15
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ST-3050D SUB. PUMP/CTRL. BOX — TRANSFORMER WIRING (CB200) TRANSFORMER 230/460 VOLTAGE SETTINGS WARNING: ALWAYS make sure that the transformer is set CAUTION: to the correct output voltage. Incorrect transformer output voltage settings can cause severe damage Transformer 230/460 Voltage Settings: to the pump. Pump motors are factory set at 230 VAC. The transformer (Figure 6) of this control box must be set to the voltage requirements of the pump in use. Refer to the attached wiring diagram locat
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ST-3050D SUB. PUMP/CONTRL. BOX — WIRING DIAGRAM (CB200) THREE PHASE WIRING EXTERNAL 3-PHASE ELECTRONIC (230 OR 460 VOLT) OVERLOAD UNIT CONNECTIONS POWER SOURCE TERMINALS M O/L CIRCUIT 1 BREAKER 2 L1 T1 L1 RED PUMP WHITE 3 T2 4 L2 MOTOR BLACK L2 T3 5 6 L3 L3 H1 H3 H2 H4 CONTROL TRANSFORMER SEE FIGURE 1 FOR JUMPER SELECTION 50VA CPT 230 0R 460 VAC SELECTION. GROUND F1 6 XF X1 X2 FUSE 1/2 AMP ON INDICATOR OFF LAMP MANUAL AUTO 5 1 7 1 G 11 12 CONTACTOR 4 5HP O/L 23 24 1 1 3 7 6 M 14 13 A1 A2 96 95 T
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ST-3050D SUB. PUMP/CTRL. BOX — 3Ø PWR. INSTALLATION (CB200) 3-PHASE POWER CORD (INPUT TO BOX) INSTALLATION 3-PHASE POWER INSTALLATION (OUTPUT TO PUMP) 1. The three phase input power cord should have four wires. 1. The three phase output power cord should have four wires. Each wire is color coded. The colors are RED, WHITE, Each wire is color coded. The colors are RED, WHITE, BLACK and GREEN. BLACK and GREEN. 2. Remove the 3-phase AC input connector housing from the 2. Remove the 3-phase AC outp
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ST-3050D SUB. PUMP/CTRL BOX — 3Ø PWR. INSTALLATION (CB200) Figure 8. Three Phase Control Box/Pump System Diagram ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 19
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ST-3050D SUBMERSIBLE PUMP/CTRL. BOX — PRE SETUP (CB200) ELECTRONIC OVERLOAD UNIT SETTINGS Class Dial Setting 1. Set the CLASS dial pointer (Figure 9) to the HAND position CAUTION: 10. This controls the reset function only. It does not affect Electronic Overload Unit: Always make sure that the ability of the pump to run with or without float switches. the electronic unit supplied with the control box is set RESET Operation to the correct amperage. This overload unit must MATCH the amperage requir
