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OPERATION MANUAL
MODEL ST4125G/ST6125G
SUBMERSIBLE PUMP
Revision #0 (11/18/10)
To fi nd the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
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TABLE OF CONTENTS ST4125G/ST6125G Submersible Pump Table Of Contents .................................................... 2 Parts Ordering Procedures ...................................... 3 Safety Information ................................................ 4-7 Specifi cations ............................................................ 8 Dimensions .............................................................. 9 General Information .............................................. 10 Components
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NOTES ST4125G/ST6125G SUBMERSIBLE PUMP• OPERATION MANUAL — REV. #0 (11/18/10) — PAGE 3
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SAFETY INFORMATION Do not operate or service the equipment before reading Potential hazards associated with the operation of this the entire manual. Safety precautions should be followed equipment will be referenced with hazard symbols which at all times when operating this equipment. may appear throughout this manual in conjunction with Failure to read and understand the safety safety messages. messages and operating instructions could Symbol Safety Hazard result in injury to yourself and othe
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SAFETY INFORMATION GENERAL SAFETY NOTICE CAUTION This equipment should only be operated by trained and qualifi ed personnel 18 years of age and older. NEVER operate this equipment without proper protective clothing, shatterproof glasses, respiratory protection, Whenever necessary, replace nameplate, operation and hearing protection, steel-toed boots and other protective safety decals when they become diffi cult read. devices required by the job or city and state regulations. Manufact
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SAFETY INFORMATION a torch or other source of fl ame. Application of heat in PUMP SAFETY this manner may heat the oil in the seal cavity above the DANGER critical point, causing pump damage. NEVER operate the equipment in an explosive DO NOT pump water with a temperature greater than atmosphere or near combustible materials. An 104°F. explosion or fi re could result causing severe DO NOT pump liquids containing acid or alkali. bodily harm or even death. ALWAYS check strainer before
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SAFETY INFORMATION Control Box Safety NOTICE DANGER ALWAYS make certain that the voltage supplied to the pump is correct. Always read the pump’s nameplate to ALWAYS have a qualifi ed electrician perform the control determine what the power requirements are. box installation. The possibility exists of electrical shock or electrocution. Power Cord/Cable Safety NOTICE DANGER ALWAYS mount control box in a vertical position NEVER let power cords or cables lay in water. protected from h
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ST4125G/ST6125G SUBMERSIBLE PUMP — SPECIFICATIONS Table 1. Specifi cations Model ST4125G ST6125G Type Centrifugal Submersible Pump Centrifugal Submersible Pump Impeller Cast Ductile Iron Cast Ductile Iron Discharge Size 4.00 in. (101 mm) 6.00 in. (152 mm) Max Solids .078 in (2 mm) .078 in (2 mm) 380 gallons/minute Maximum Pumping Capacity TBD (1,438 liters/minute) Max Head 111 ft. (33.8 meters) TBD Power 10 HP (7.5 kw) 15 HP (11 kw) Voltage/Phase 230/460 3Ø 230/460 3Ø 180 (230V) Starting Amps T
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ST4125G/ST6125G SUBMERSIBLE PUMP — DIMENSIONS 12.72 in. 12.72 in. (323 mm) (323 mm) 6.97 in. 6.97 in. (177 mm) (177 mm) 16.89 in. 15.47 in. (429 mm) (393 mm) 5.90 in. (150 mm) 3.94 in. (100 mm) 35.67 in. (906 mm) ST4125G ST6125G 34.21 in. 30.67 in. (869 mm) 28.9 in. (779 mm) (734 mm) 4.57 in. 4.57 in. (116 mm) (116 mm) 11.89 in. 11.89 in. (302 mm) (302 mm) Figure 1. ST4125G/ST6125G Pump Dimensions ST4125G/ST6125G SUBMERSIBLE PUMP• OPERATION MANUAL — REV. #0 (11/18/10) — PAGE 9
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ST4125G/ST6125G — GENERAL INFORMATION The Multiquip Model ST4125G and ST6125G submersible pumps are designed to pump water. These pumps work best when faced with high head applications where you need an appreciable fl ow. Each pump has dual voltage capability, easily switched between 230 and 460 volts. These pumps have a heavy-duty cast iron body that is very durable and able to withstand rough handling. The ST4125G comes with a 4-inch NPT threads for standard hose connections while the S
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ST4125G/ST6125G — COMPONENTS 4 4 5 5 6 6 3 3 2 2 8 8 1 1 7 7 Figure 2. Submersible Pump Components Figure 2 shows the location of the basic components, for 5. AC Power Cable – These pumps are supplied with a the ST4125G and ST6125G submersible pumps. Listed 50 ft. (15.2 meters) AC power cable. Always check the below is a brief explanation of each component. cable for signs of wear. NEVER use a defective power cable. Replace the cable immediately if the cable is 1. Strainer Base – This s
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SUBMERSIBLE PUMP FLOAT SWITCHES Mechanical Float Switch Design Features Mechanically activated fl oat switches offer a reliable low Float switch housings are constructed of high-impact, current control for dewatering applications. corrosion resistant polypropylene with mechanically activated, snap action contacts. How It Works Suitable for most liquid environments. The mechanical fl oat switch control will turn ON (close) Hermetically sealed. when the fl oat tips 45° above -horizontal, indic
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SUBMERSIBLE PUMP FLOAT SWITCHES Float Switches Mounting The Float Switches 1. Determine the required cord tether length as shown For unattended operation of the submersible pump two in Figure 3 and Table 2. single fl oat switches (Model SW-1WOPA) will be required. These fl oat switches can be connected directly to a control 2. Place the cord into the clamp as shown in Figure 6. box (bare wires) and will allow the pump to turn on and off 3. Secure the clamp to the discharge hose as shown in
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FLOAT SWITCHES CB12/CB14 Control Boxes For remote pumping applications, both submersible pumps, CAUTION! CAUTION! require a control box (Figure 7). HIGH HIGH VOL VOLT TAGE! AGE! The CB12 control box requires 230VAC, 3-phase input voltage for normal operation, while the CB14 control box OFF requires 460VAC, 3-phase input voltage. Reference Table 3 MAN AUTO for the desired heater. The heater size is determined by the the full load amps the pump will draw. RESET These water-resistant control
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CONTROL BOX INSTALLATION Control Box Installation CONTROL BOX MOUNTING The following procedure outlines the steps for connecting Mount the control box in an upright vertical position. Make the pump to a control box. sure the control box is securely fastened to a fl at surface, that is free of dust, dirt, moisture or any elements that DANGER may contaminate or erode the electronic components of The ST4125G and ST6125G submersible the control box. pumps are designed to work with a control
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CONTROL BOX INSTALLATION Connecting SW-1WOPA Float Switches to Control Box 1. Remove the fl oat switch input connector housing, then route the fl oat switch wires through the cable gland on the control box. Attach the wires of the fl oat switch to the terminal block as indicated by Table 5 and Figure 9. Table 5. Dual Float switch Connections Float Terminal Wire Switch Block No. Color TB1-A1 Black Start TB1-A2 White TB1-A3 Black Stop TB1-A4 White 2. Tighten the connector housing to ensure a
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T6 T5 T4 T4 230/460 VAC VOLTAGE SELECTION 230/460 VAC Voltage Selection The ST4125G/ST6125G submersible pumps are factory set at 230 VAC. To change the voltage from 230 VAC to 460 VAC, reference Figure 8: REMOVE BLACK BLACK GROUND GROUND SLEEVING GREEN GREEN BLACK BLACK T9 230 VAC 460 VAC T3 T3 T2 T2 RED RED T1 T8 T1 WHITE WHITE BLACK BLACK T9 T7 T6 T5 T8 T6 T5 T7 T4 T4 460 VAC (HIGH VOLTAGE) MOTOR WINDING CONFIGURATION U 230 VAC (LOW VOLTAGE) X 7 W U 9 7 Z X Y 8 9 MOTOR Z Y MOTOR WINDING 8 W
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CB12/CB14 CONTROL BOX POWER CONNECTIONS 3-Phase Power Installation (Input to Control Box) 3-Phase Power Installation (Output To Pump) 1. The 3-phase input power cord should have four wires. 1. The 3-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 2. Remove the 3-phase AC output power connector the con
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M DUEL-ELE FUSE U N F F 2 0 - 5 2 (R) ImperviTRAN U.S. PAT.NO. 3516040 220 230 240 440 460 480 1 2 3 4 1 2 3 4 LISTED H1 H2 H3 H4 702X 75VA 50/60HZ 105 C MICRON TEMP. CL. CONTROL CAT. XF TRANSFORMER NO. B075BTZ13JK X2110 X1 115 (708) 547-0900 120 04024 X2 XF X1 0 3 /00 1 6 CB12/CB14 CONTROL BOX WIRING LAYOUT MOUNT CONTROL BOX IN AN UP-LEFT VERTICAL POSITION AS SHOWN. 1L1 5L3 3 L2 1- 2- 3- 4- CONTROLLER -3 TRANSFORMER -4 AC POWER 1- 2- 3- 4- OFF/ON TERMINAL BLOCK 2T 2T T1 1 4T2 63 LAMP AEG 1
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OPERATION Pump Placement 2. Make sure the pump is always placed in an upright position, not tilted (Figure 11). Never position the pump 1. Attach a suitable lifting chain to the eye bolts (Figure 10) directly on a soft, loose bottom. To attain maximum on the pump. Use a crane, or similar lifting device and pumping capacity and prevent excessive wear, position lower the pump into place. For applications where there the pump so it will not burrow itself into sand or clay. is an excessive a
