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OperatiOn and p arts Manual
MOdel st3020b1/st3020bcul
subMersible puMps
Revision #2 (10/28/10)
To find 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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t able Of cOntents component drawings Multiquip st3020b1/bcul Pump Assembly. ............................................... 32-33 submersible pump Motor Assembly. ............................................... 34-35 Table Of Contents .................................................... 2 Parts Ordering Procedures ...................................... 3 Terms And Conditions Of Sale — Parts ................ 36 Safety Information ................................................ 4-7 Dimensions .
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parts Ordering prOcedures Ordering parts has never been easier! choose from three easy options: Effective: st January 1 , 2006 best deal! order via internet (dealers only) : If you have an MQ Account, to obtain a Username Order parts on-line using Multiquip’s SmartEquip website! and Password, E-mail us at: parts@multiquip. com. View Parts Diagrams To obtain an MQ Account, contact your Order Parts District Sales Manager for more information. Print Specifi cation Information Use the int
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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 o
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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. Manu
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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 bef
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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 fr
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24.8in (631mm) NPT3 21.6in (548mm) 6.7in 3.3in 2.9in 2.0in (170mm) (83mm) (75mm) (50mm) 590.6in 6.3in (15000mm) (160mm) 27.9in (708mm) NEMAL6-20PPLUG 6.9in (176mm) diMensiOns 0.9in (23mm) Figure 1. ST3020B1/BCUL Pump Dimensions page 8 — st3020b1/bCUL sUb. pUmp • operation and parts manU aL — rev. #2 (10/28/10)
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specificatiOns 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) 3 Mechanical Seal Oil Capacity
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perfOrMance curve Figure 2. Pump Performance Curve page 10 — st3020b1/bCUL sUb. pUmp • operation and parts manU aL — rev. #2 (10/28/10)
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general infOrMatiOn The Multiquip Model ST3020B1 and ST3020BCUL never lift the pump by its electrical power cord. ALWAYS submersible pumps are designed to pump water and lift the pump by its carrying handle or attach a rope to the is used for the draining (dewatering) of well casings carrying handle. construction sites, coffer dams, manholes, transformer A pump fully submerged in liquid will not freeze, unless vaults and excavations. the liquid freezes. do not allow a partially submerged It
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OM c pOnents 5. Mechanical Seal – The hydraulic oil in the pump cavity is designed to provide cooling for the pump seal. This allows the pump to run dry for a limited period of time. 6. mechanical seal o il plug – Remove this plug to check and add lubrication oil (ISO VG32 grade) to the oil cavity. This oil protects the mechanical seal. Oil cavity should be full enough to cover seal spring. 7. Strainer Base – This strainer base is made of electro- coated steel which is resistant to hardwar
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direct pOwer OperatiOn direct power operation The ST3020B1/BCUL submersible pumps can be configured to operate by direct power (Figure 4) or connected to a control box (Figures 9, 10 and 11) utilizing float switches. When the pump is connected directly to a 1Ø, 230 VAC, 60 Hz power source via the L6-20P plug located at the end of the power cord, the pump will operate soon as power is applied. It is suggested that a quick disconnect switch be installed as a means of turning the power on and o
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flOat switches mechanical Float switch design Features Mechanically activated float 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 float switch control will turn ON (close) Hermetically sealed. when the float tips 45° above -horizontal, indicating a high lev
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fl Oat swith c es Float switches For unattended operation of the submersible pump two Model SW1WOPA float switches will be required. These float switches have bare wires on one end of the cable for direct connection to either the CB6 or CB200 Control Boxes. The illustration below is an example of using two single float switches in a typical dewatering application. mounting the Float switches NOTICE 1. Determine the required cord tether length as shown Single float switch, Model SW1A has a pu
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fl Oat swith c es (c Ontr Ol b O)x Control boxes (Cb6 and Cb200) For special remote pumping applications of the submersible pump, a control box (Models CB6 or CB200) is required. These water resistant control boxes provides watertight housing and glands to prevent water from leaking into the box, and a float switch interface. Both control boxes will require the use of two SW-1WOPA float switches, no plug, bare wires for direct connection to the control box. See Figures 9, 10 and 11 for contro
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fl Oat swith c es (c Ontr Ol b O)x NOTE: CHECKJUMPERSETTINGSON TRANSFORMER,REFERENCE CB200WIRINGDIAGRAM.230VAC CONFIGURATIONSHOWN. EXTERNAL1Ø (230VAC) MOUNTCONTROL POWERSOURCE BOXINANUPRIGHT VERTICALPOSITION CIRCUIT ASSHOWN. BREAKER L1 RED BLACK L2 110 115 X1 120 X2 XF X1 CONTACTOR FUSE GROUND MTE NOTE: ACPOWER TERMINALBLOCK FLOATSWITCH REFERTOOPERATIONMANUAL TERMINALBLOCK FORTHECORRECTSETTINGOF B THEELECTRONICOVERLOADUNIT. L1 L2 L3 1 2 3 4 CLASS FLC(A) STOP AUTO HAND 10 10 10 8 12 RESET 7 20 20
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fl Oat swith c es (c Ontr Ol b O)x NOTE: CHECKJUMPERSETTINGSON TRANSFORMER,REFERENCE CB200WIRINGDIAGRAM.230VAC CONFIGURATIONSHOWN. EXTERNAL 1Ø230VAC,60Hz 3Ø230/460VAC,60Hz POWERSOURCE A1 A2 1L1 3L2 5L3 13NO CIRCUIT MOUNTCONTROL BREAKER BOXINANUPRIGHT VERTICALPOSITION RED L1 ABB A16-30-10 ASSHOWN. BLACK L2 110 CONTACTOR 115 X1 120 X2 XF X1 2T1 4T2 6T3 14NO FUSE NOTE: REFERTOOPERATIONMANUAL GROUND FORTHECORRECTSETTINGOF 1L1 3L2 5L3 THEELECTRONICOVERLOADUNIT. ACPOWER TERMINAL BLOCK WHITE E16DU TRIP
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Operati On Hose Connections 1. Connect a 3-inch hose to the discharge port on the pump as shown in Figure 8. Make sure that hose is attached correctly to the discharge port. attaching Lifting rope 1. Attach a suitable lifting cable (rope) to the carrying handle (Figure 12) on the pump and lower the pump into place. For applications where there is an excessive amount of mud, grit or silt, the use of a support platform is desirable. When pumping water from swimming pool type applications w
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Operati On Control box installation single-phase p ower installation (input) The following procedure outlines the steps for connecting The ST3020B1/BCUL submersible pump requires 1Ø, 230 the pump to a control box. VAC, 60 Hz, power for normal operation. If you cannot determine what your pump's power danger requirements are, look at the vendor supplied identification The ST3020B1 and SB3020BCUL name tag attached to the pump or contact Multiquip's submersible pumps are also designed servi
