Submersible Pumps Model ST4125D Model ST6125D

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1 OPERATION AND PARTS MANUAL Submersible Pumps Model ST5D Model ST65D Revision #0 (0/05/0) To find the latest revision of this publication, visit our website at: THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

2 ST-5D/ST-65D CONTROL BOX INSTALLATION DANGER - Hazardous Voltage To place the ST-5D/ST65D submersible pumps into operation requires the use of a control box. The control box contains the necessary electronics (thermal overload module, float switch connections and 20/60 voltage transformer) to operate the pump. Remember this control box contains hazardous voltages. Disconnect all sources of power before installing or servicing. There exists the possibility of electrocution, electric shock or burn, which can cause severe bodily harm or even death! CAUTION - Installation This control box should only be installed or serviced by a licensed electrician or qualified personnel. CONTROL BOX MOUNTING Mount the control box in an upright vertical position. Make sure the control box is securely fastened to a flat surface, that is free of dust, dirt, moisture or any elements that may contaminate or erode the electronic components of the control box. -Phase Power Installation (Input) The ST-5D/ST65D submersible pump requires 20/ 60V -phase power for normal operation. The pump is shipped from the factory in the 20 VAC configuration. To change the voltage setting from 20 VAC to 60 VAC refer to the 20/60 VAC Selection section. If you cannot determine what your pump's power requirements are, look at the vendor supplied identification name tag attached to the pump or please contact Multiquip's Service/Technical Assistance department. CAUTION - Voltage Phasing Applying incorrect power (voltage phasing) to the submersible pump can cause severe damage to the pump. Please make sure that the correct voltage and phase are transferred to the pump at all times. POWER CORD REQUIREMENTS When routing the three phase power via a power cord to the control box, ALWAYS use the correct wire size. Please reference Table below (Cord Length and Wire Size) to determine the correct wire size. Incorrect wire size can adversely affect the performance of the pump. TABLE. CORD LENGTH AND WIRE SIZES A MPS 50 FT. 00 FT. 50 FT FLOAT SWITCH INSTALLATION. Remove the float switch input connector housing, then route the float switch wires through the cable gland on the control box. Attach the wires to the float switch terminal block as indicated by Table. Refer to Figures and 8. TABLE FLOAT SWITCH. FLOAT SWITCH CONNECTIONSS FLOAT SWITCH TERMINAL BLOCK NUMBER START TERMINALS AND 2 STOP TERMINALS AND 2. Tighten the connector housing to ensure a tight fit between the cord and the connector body. This will prevent the cable from pulling out of the terminal block and also prevent moisture from entering the control box.. Determine the length of the float switch wires, then secure float switch wires to pump discharge hose. PAGE ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0)

3 ST-5D/ST-65D 20/60 VAC VOLTAGE SELECTION 20/60 VAC Voltage Selection The ST-5D/ST-65D submersible pump is factory set at 20 VAC. To change the voltage from 20 VAC to 60 VAC, perform the following (refer to Figure 5):. Place pump in a suitable area free of dirt and debris. 2. Remove the four retaining screws, using a 9 mm socket, and the two Allen screws using an 8 mm socket, that secure the pump casing.. Lift the top of the pump by attaching a chain on the eye bolts and using a crane or similar equipment. Be careful not to fully stretch the cable connections inside the pump.. Cut the tie-wrap holding the 60 VAC motor winding wires as shown in Figure 5. Then remove the protective covering from the wires (labeled, 5, and 6). 5. Remove the sleeving covering the large red wire and separate the 2 wires labeled and. 6. Connect the wire labeled from step to the wire labeled from step 5 and join them with the large red wire. Cover the wires with sleeving.. Repeat steps 5 and 6 for the large black wire and the large white wire. Refer to the table in Figure 5 for wires to separate (column 2) and wires to connect (column ). 8. Using electrical tape, bind the wires that were separated and disconnected (labeled, 2, and ). Place these wires neatly inside the housing. 9. Reinstall the top of the pump and reinsert the six screws and tighten securely. CUT TIE-WRAP WHITE (LARGE) WHITE (SMALL) (SMALL) (SMALL) GREEN CONNECT TO GROUND SCREW IN UPPER CASING REMOVE PROTECTIVE COVERING TO GAIN ACCESS TO 60 VAC WIRES, 5, AND 6. REMOVE SLEEVING 20 VAC WINDINGS VAC WINDINGS 20/60 VAC WINDINGS COMMON 60 VAC (HIGH VOLTAGE) U W 20 VAC (LOW VOLTAGE) U 9 X Z Y V X WINDING STAR WITH NEUTRAL 8 20 VAC INPUT Ø U () V (WHITE) W () WINDING CONFIGURATION WINDINGS AND 2 AND 8 AND 9 60 VAC INPUT Ø U () V (WHITE) W () W 9 Z WINDINGS AND 5 AND 8 6 AND 9 WINDING STAR WITH NEUTRAL 8 Y V NOTE PUMP IS SHIPPED FROM THE FACTORY FOR 20 VAC OPERATION. FOR 60 VAC OPERATION SEE ABOVE WIRING ILLUSTRATION AND TABLE. Figure 5. 20/60 VAC Pump Voltage Selection ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0) PAGE 5

4 EXTERNAL -PHASE (20 OR 60 VOLT) POWER SOURCE L L2 L CIRCUIT BREAKER WHITE GREEN GROUND ST-5D/ST-65D CONTROL BOX WIRING DIAGRAM CB-/CB- POWER INPUT L L L2 L2 L L F XF FUSE /2 AMP H X THREE PHASE WIRING CONNECTIONS H H2 GRN H M CONTROL TRANSFORMER 50VA CPT WHT X2 O/L BLK WHT T PUMP T2 T SEE TABLE 2 FOR CORRECT HEATER SELECTION GRN BLK 2 MAN OFF AUTO 0 OVERLOAD RELAY O/L NC X2 ON INDICATOR LAMP G WHT 0 0 NO 0 A2 TERMINAL BLOCK CONTACTOR 5HP M A WHT 0 2 SELECTABLE 20 OR 60 VAC VOLTAGE INPUTS STOP FLOAT SWITCH START FLOAT SWITCH L L2 L L2 FUSE X2 XF X 0 5 X 0 TRANSFORMER JUMPER TAB 20V INPUT 60V INPUT H H2 H H H H H2 H CB- H H H2 H CB- Figure. Control Box Wiring Diagram PAGE 6 ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0)

5 ST-5D/ST-65D -PHASE POWER INSTALLATION -PHASE POWER CORD (INPUT TO BOX) INSTALLATION. The three phase input power cord should have four wires. Each wire is color coded. The colors are, WHITE, and GREEN. 2. Remove the -phase AC input connector housing from the control box, then route the three phase input power cable through the cable gland on the control box. Attach the wires to the AC terminal block inside the control box as indicated by Table 5 and Figure 8. -PHASE POWER INSTALLATION (OUTPUT TO PUMP). The three phase output power cord should have four wires. Each wire is color coded. The colors are, WHITE, and GREEN. 2. Remove the -phase AC output power connector housing on the control box, then route the three phase output power cable through the cable gland on the control box. Attach the wires to the AC terminal blocks on the overload relay as indicated by Figure 8. TABLE 5. -PHASE AC INPUT POWER CONNECTIONSS C ABLE WIRE COLOR AC TERMINAL BLOCK # L NOTE Electrical connections to the power source should only be performed by a licensed electrician or qualified personnel. WHITE L2 L GREEN GROUND. Tighten the connector housing to ensure a tight fit between the power cord and the connector body. This will prevent the cable from pulling out of the terminal block and also prevent moisture from entering the control box. It is recommended that the power being supplied to the control box ALWAYS be connected to a circuit breaker or a quick disconnect switch. This safety feature allows for quick removal of power from the control box in the event of an emergency.. Connect the other end of the -phase input power cord to the voltage source. Remember to provide a means of disconnecting the power from the control box (circuit breaker or quick disconnect switch). Also make sure to provide a good earth ground to the control box. ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0) PAGE

6 -8/0 DUEL-ELE FUSE LISTED 02X MICRON CONTROL TRANSFORMER (08) U.S. PAT.NO CAT. NO. B05BTZJK ( 5VA 50/60HZ 0 X2 XF X H H2 H H X XF 2 2 H H2 H H MOUNT CONTROL BOX IN AN UP-LEFT VERTICAL POSITION AS SHOWN. ST-5D/ST-65D -PHASE POWER INSTALLATION L L2 5L CONTROLLER FNM TEMP. 05 CL. C ImperviTRAN R) TRANSFORMER FUSET - AC POWER TERMINAL BLOCK T T2 6T AEG 5 0 X OFF/ON LAMP EXTERNAL -PHASE (20 OR 60 VOLT) POWER SOURCE L L2 CIRCUIT BREAKER FLOAT SWITCH TERMINAL BLOCK WHITE L L2 BLK 2 L WHITE GRN L L L 2 R E S E T T T T 2 BLK WHT GRN GROUND M A I N T R I P /00 MANUAL/AUTO SWITCH OVERLOAD RELAY HEATER SEE TABLE 2 L GREEN FLOAT SWITCH INPUTS PHASE AC OUTPUT POWER CABLE PHASE AC INPUT POWER CABLE.SECURE FLOAT SWITCH WIRES TO PUMP DISCHARGE HOSE. STOP FLOAT SWITCH. CONNECT TO TERMINALS AND 2. START FLOAT SWITCH. CONNECT TO TERMINALS AND 2 WARNING INSTALLATION OF THIS CONTROL BOX IS TO BE PERFORMED ONLY BY A LICENSED ELECTRICIAN OR QUALIFIED PERSONNEL. ST-65D SUBMERSIBLE PUMP PUMPING RANGE Figure 8. Three Phase Control Box/Pump System Diagram PAGE 8 ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0)

7 ST-5D/ST-65D SUBMERSIBLE PUMP TO UNITS Qty. P/N Description Remarks KIT, MECHANICAL SEAL, SLEEVE, O-RINGS ST5D KIT, MECHANICAL SEAL, SLEEVE, O-RINGS ST65D ST-5D/ST-65D SUGGESTED SPARE PARTS ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0) PAGE 2

8 ST-5D SUBMERSIBLE PUMP ASSY. ST-5D SUBMERSIBLE PUMP ASSY MECHANICAL SEAL, SLEEVE, O-RINGS KIT PAGE 28 ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0)

9 ST-5D SUBMERSIBLE PUMP ASSY. ST-5D SUBMERSIBLE PUMP ASSY. NO PART NO PART NAME QTY. REMARKS 0255 CABLE, POWER, 22 MM 50' CABLE GLAND, DIA.8 ST5D0 BOLT, MX25L CABLE BUSH, DIA CABLE ENTRY ASSY. 6 ST5D06 BOLT MOULDING TUBE VOLUTE, HOUSING 9 ST5D020 BOLT, MX0L 0# ST5D020 O-RING, DIA.5X LOWER PACKING 0260 IMPELLER SUCTION COVER ST5D022 BOLT, MXM20L STRAINER 6# ST5D025 MECHANICAL SEAL 005 OIL SEAL HOSE CONNECTION, DISCHARGE 2" 9 ST5D02 BOLT, M0X25L 20# ST5D02 O-RING, DIA..X OIL PLUG, M SEAL STOPPER 2 ST5D09 BOLT, M5X0L BOTTOM PLATE 26 ST5D09 BOLT, MX0L COVER 28 ST5D050 BOLT, MX5L, M0X5L 6 29# ST5D050 O-RING, DIA.5X PACKING, UPPER 0266 BALL BEARING, UPPER, #606ZZC THERMAL PROTECTOR # TBD GASKET, FLANGE HOSE CONNECTION 0268 NUT, IMPELLER, M20X2.5P 5 ST5D055 ROTOR, UNIT STATOR BALL BEARING (LOWER)#608/# BEARING HOUSING, LOWER 9 ST5D060 BOLT, M8X20L 6 0# ST5D060 O-RING, DIA../ BEARING COVER 2 ST5D06 BOLT, M6X6L 0262 STATOR HOUSING ST5D06 BOLT, M0X00L KEY, XX EYE BOLT, LIFTING,W/ 2 05 SEAL, LEAKAGE SENSOR STOP RING 9 ST5D05 WAVE WASHER, DIA.55X0.5X KIT, MECHANICAL SEAL, SLEEVE, O-RINGS......INCLUDES ITEMS W/ # ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0) PAGE 29

10 ST-65D SUBMERSIBLE PUMP ASSY. ST-65D SUBMERSIBLE PUMP ASSY MECHANICAL SEAL, SLEEVE, O-RINGS KIT PAGE 0 ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0)

11 ST-65D SUBMERSIBLE PUMP ASSY. ST-65D SUBMERSIBLE PUMP ASSY. NO PART NO PART NAME QTY. REMARKS 059 CABLE, POWER, 2 MM 50' CABLE GLAND, DIA.8 ST65D0 BOLT, MX25L CABLE BUSH, DIA CABLE ENTRY ASSY. 6 ST65D06 BOLT 0260 MOULDING TUBE VOLUTE, HOUSING 9 ST65D020 BOLT, MX0L 0# ST65D020 O-RING, DIA.5X LOWER PACKING 026 IMPELLER 026 SUCTION COVER ST65D022 BOLT, MXM20L STRAINER 6# ST65D025 MECHANICAL SEAL 0266 OIL SEAL FLANGE, HOSE CONNECTION DISCHARGE 9 ST65D02 BOLT, M0X25L 20# ST65D02 O-RING, DIA..X OIL PLUG, M SEAL STOPPER, (OPTIONAL) 2 ST65D09 BOLT, M5X0L HOSE CONNECTION, DISCHARGE BOTTOM PLATE 26 ST65D09 BOLT, BOTTOM PLATE, MX0L COVER 28 ST65D050 BOLT, MX5L, M0X5L 6 29# ST65D050 O-RING, DIA.5X UPPER PACKING ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0) PAGE

12 ST-65D SUBMERSIBLE PUMP ASSY. ST-65D SUBMERSIBLE PUMP ASSY MECHANICAL SEAL, SLEEVE, O-RINGS KIT PAGE 2 ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0)

13 ST-65D SUBMERSIBLE PUMP ASSY. (CONTINUED) ST-65D SUBMERSIBLE PUMP ASSY. (CONTINUED) NO PART NO PART NAME QTY. REMARKS 0265 BALL BEARING, UPPER, #606ZZC THERMAL SENSOR # TBD GASKET, DISCHARGE CONNECTION NUT, IMPELLER, M20X2.5P ROTOR UNIT STATOR 0266 BALL BEARING, LOWER, #608/# BEARING HOUSING, LOWER 9 ST65D060 BOLT, M8X20L 6 0# ST65D060 O-RING, DIA../ BEARING COVER 2 ST65D06 BOLT, M6X6L 0266 STATOR HOUSING ST65D06 BOLT, M0X00L KEY, IMPELLER, XX EYE BOLT, LIFTING, W/ 2 05 SEAL LEAKAGE SENSOR STOP RING, S-0 9 ST65D05 WAVE WASHER, DIA.55X0.5X KIT, MECHANICAL SEAL, SLEEVE, O-RINGS INCLUDES ITEMS W/ # ST-5D/ST-65D SUBMERSIBLE PUMPS OPERATION & PARTS MANUAL REV. #0 (0/05/0) PAGE

Table 3. Pumping Range. 6 in cm. 8 in cm. 16 in cm. 6 in cm. 14 in cm. 18 in cm.

Table 3. Pumping Range. 6 in cm. 8 in cm. 16 in cm. 6 in cm. 14 in cm. 18 in cm. float switches Mechanical Float Switch Mechanically activated float switches offer a reliable low current control for dewatering applications. How It Works The mechanical float switch control will turn