Bulletin # LHF4 10/14 LANCASTER HYDRO-FORCE™ 4” Submersible Motors Single Phase, 230 Volt, 60 Hertz 2-Wire Motors 3-Wire Motors Control Boxes for use with 3-Wire Motors TECHNICAL BULLETIN PAGE 1
INDEX Technical Features & Operating Limits...................................................................3 Catalog Numbers, Dimensions, Weight..................................................................4 Operating Data...........................................................................................................5 Motor Tests: 2-Wire & 3-Wire Motors Insulation Resistance (Ground) Test..................................................................................
LANCASTER HYDRO-FORCE™ 4” ENCAPSULATED SUBMERSIBLE MOTORS SINGLE PHASE TWO-WIRE & THREE-WIRE, ½ -1 HP, 230 V EQUIPPED WITH LIGHTNING ARRESTORS TECHNICAL FEATURES Two-Wire Design • Split-phase induction run (IR) design with built-in electronic starter connected in series to a high resistance auxiliary start winding – no capacitor required – electronic starter controls disengagement of start winding as a function of starting time and starting voltage.
LANCASTER HYDRO-FORCE™ 4” ENCAPSULATED SUBMERSIBLE MOTORS SINGLE-PHASE 230 VOLT 2-WIRE 3-WIRE MOTOR CATALOG NUMBER 6-2LS312-59 6-2LS412-59 6-2LS512-59 6-3LS312-59 6-3LS412-59 6-3LS512-59 MOTOR TYPE CONTROL BOX HP SF 4WP 050 M 2W 4WP 075 M 2W 4WP 100 M 2W 4WP 050 M 4WP 075 M 4WP 100 M NOT REQUIRED NOT REQUIRED NOT REQUIRED 6-3LS312-49 6-3LS412-49 6-3LS512-49 0.5 0.75 1 0.5 0.75 1 1.6 1.5 1.4 1.6 1.5 1.
LANCASTER HYDRO-FORCE TM SUBMERSIBLE MOTORS FOUR-INCH SINGLE PHASE OPERATING DATA 2-WIRE MOTORS RATING CATALOG NUMBER TYPE 6-2LS312-59 6-2LS412-59 6-2LS512-59 FULL LOAD AMPS MAIN WINDING RESISTANCE OHMS (1) MAX. LOAD (S.F. LOAD) AMPS INRUSH START/ LOCKED ROTOR AMPS CIRCUIT BREAKER (2) HP KW VOLTS HZ S.F. RPM 4WP 050 M 2W 1/2 0.37 230 60 1.6 3430 5.5 6.4 4.6-5.2 31 15 4WP 075 M 2W 3/4 0.55 230 60 1.5 3435 7.0 9.3 3.5-3.9 39 20 4WP 100 M 2W 1 0.75 230 60 1.
LANCASTER HYDRO-FORCE TM 2-Wire & 3-Wire Motor Tests Insulation Resistance (Ground) Test: Procedure1) WARNING! MAKE SURE POWER IS TURNED OFF! Open (turn off) master breaker and disconnect all motor leads from control box (3-wire motor installation) or pressure switch (2-wire motor installation). 2) Use a megohmmeter or an ohmmeter with the scale lever set to R x 100K (R x 100,000). Short the meter leads together and "zero" the ohmmeter using the meter's adjustment dial.
LANCASTER HYDRO-FORCE TM 2-Wire & 3-Wire Motor Tests Winding Resistance Test: Procedure1) WARNING! MAKE SURE POWER IS TURNED OFF! Open (turn off) master breaker and disconnect all motor leads from control box (3-wire motor installation) or pressure switch (2-wire motor installation). 2) Use an ohmmeter with the scale lever set to R x 1 for values under 10 ohms. For values over 10 ohms, set the scale lever to R x 10. Short the meter leads together and turn the meter's adjustment dial to "zero" the meter.
LANCASTER HYDRO-FORCE TM 4" Submersible Motors Cable Tests Checking Cable and Splice: Procedure1) Submerge cable and splice in a steel barrel of water with both ends out of water. 2) Use an ohmmeter with the scale lever set to R x 100K (R x 100,000). Short the meter leads together and "zero" the ohmmeter using the meter's adjustment dial. 3) Connect one meter lead to the steel barrel (ground) and the other meter lead to each cable lead individually. See diagram...
LANCASTER HYDRO-FORCE TM 4" Submersible Motors Cable Tests Identify Cable Leads (when color is unknown): For 3-wire single phase motor installations, if the colors on the individual drop cables cannot be determined and the leads cannot be positively identified, follow this procedure1) Disconnect all three drop cables from the control box. For temporary identification, tag each cable (1, 2, 3).
LANCASTER HYDRO-FORCE™ 3-Wire Control Boxes Single-phase three-wire submersible motors require the use of control boxes. Control boxes through 1 hp offer: • Capacitor-start induction run (CSIR) design - contain a starting capacitor and a starting relay. • Quick-disconnect design - disconnects the control box starting capacitor and starting relay from the electrical system when the lid is removed. • Cable terminals accepting up to #8 AWG copper wire.
LANCASTER HYDRO-FORCE™ 3-Wire Control Box Troubleshooting Troubleshooting procedures with POWER ON WARNING: Fatal electrical shock hazard. Do not touch any live parts. Only qualified persons should perform the following procedures. Measure Voltage… • With control box lid removed: the motor cannot run because the electrical components on the lid are removed from the circuit. Measure line voltage by placing a voltmeter across the L1 and L2 terminals in the control box.
LANCASTER HYDRO-FORCE™ 3-Wire Control Box Troubleshooting Troubleshooting procedures with POWER OFF Control box component diagnostic testing: CAUTION- Make sure the power is turned off. Start Capacitor… 1) Physical Inspection – If the vent (a small rubber diaphragm located at the top end of the start capacitor’s plastic case) is bulging, or if a foul smell or a buildup of black soot is evident, the start capacitor has vented due to exposure to over-current, heat or prolonged use.
Start Relay (a.k.a. Potential or Voltage Relay)… 1) Physical Inspection – A faint click from inside the control box can be heard very shortly after the submersible pump motor starts, i.e. the relay contacts should be closed during the initial starting cycle, but should open (faint click) as the motor comes up to speed. If the relay “chatters”, i.e. clicks quickly and repeatedly, the supply voltage could be low. The start relay is designed to operate ONLY on 230-volt systems.
LANCASTER PUMP A DIVISION OF C-B TOOL CO. 1340 MANHEIM PIKE ● LANCASTER PA 17601-3196 ● TEL:717-397-3521 ● FAX: 717-392-0266 www.lancasterpump.com ● E-mail: info@lancasterpump.
