Hubbell LX-1500 User's Manual
Contents
1. 4 and TB2 5 bypasses the TR1 timing relay contacts When this jumper is installed the motor runs until the STOP button is pressed Remote Start The remote start circuit requires the closure of remote contacts to start the motor Closing the remote contacts energizes the LRSR relay The LRSR contacts close and latch the LRSR relay until the STOP button is pressed Deluge Valve Start A normally closed remote switch energizes the optional deluge valve relay DVR Opening the remote switch de energizes the DVR closing the DVR contacts in parallel with the PS contacts to energize the CR relay and the TR1 timing relay When the remote switch closes the DVR contacts open to de energize the CR relay and stop the motor if TR1 has timed out Lockout This feature is not allowed per NFPA 20 and is permitted only when acceptable to the authority having jurisdiction The lockout circuit requires the closure of remote contacts to stop the motor Closure of the contacts energizes the LK relay Contacts LK open to de energize the CR relay and stop the motor If the remote contacts open while the pressure is low the motor restarts EMERGENCY MANUAL CONTROL The emergency start handle should only be used if the Controller fails to start automatically or with the START push button The motor runs until the handle is returned to the OFF position or the CIRCUIT BREAKER is opened To start the motor when control power is not available push the T han2. Lamp Socket Indicating lights 402066520 PL5 6 7 Red lens Phase Reversal 402067520 PL4 Clear lens Power Available 402157520 Surge Suppressor Surge suppression 402165820 Page 11 of 12 Limited Service Fire Pump Controller Spares Symbot Description Funation Panno Breaker 15 A 57504463 Breaker 20 A 57504373 Breaker 25 A 57504371 Breaker 30 A 57504103 Breaker 40 A 57504378 Breaker 50 A Circuit Breaker 57504389 Breaker 60 A Discounting Means 57504346 Breaker 70 A 57504347 Breaker 90 A 57504348 Breaker 110 A 57504541 Breaker 125 A 57504101 Breaker 150 A 57504344 Contactor 200 208 57300333 Contactor 220 240 Main Contactor 57300330 Contactor 440 480 57300331 Contactor Coil 200 208 57300570 Contactor Coil 220 240 57300571 Contactor Coil 440 480 57300573 Pump Run Contact Miai M1b1 Auxiliary Contact M1 1 NO and 1 NC 57300391 Contact Notes 1 Specify Controller serial number model number horsepower and voltage when ordering parts 2 Refer to Bulletin 1000 for information on one year parts and labor warranty 3 Consult factory for Spectra Circuit Breakers with high interrupt ratings Page 12 of 12
3. from the PS pressure switch between the mercury switch and the bourdon tube Remove the installation instructions above the tube Replace plastic cover 6 Adjust the PS set points on the right side of the switch to meet water system requirements Set the upper pointer to the required STOP HIGH pressure setting Set the lower pointer to the required START LOW pressure setting The scale on the PS is only for initial positioning of the pointers During testing of the Controller verify the PS settings by referring to the system pressure gage Readjust settings as necessary to obtain desired STOP and START settings Refer to the instructions packed in the PS and NFPA 20 for more information on adjusting the settings 7 Verify that the minimum run timer TR1 is set for 10 minutes per NFPA 20 The timer can be field set as required by local jurisdiction 8 Close the cabinet door and close the CIRCUIT BREAKER DISCONNECTING MEANS After a five second delay verify that the POWER AVAILABLE light is on If equipped with a Transfer Switch verify that the green LED on the PRM phase reversal monitor is on after a five second delay If the LED s are not on open the CIRCUIT BREAKER and change any two leads L1 L2 and L3 on the PLM If equipped with a Transfer Switch change the same two leads on the PRM Caution Note that the pump should be primed and the water source available before running to avoid damage to the pump To avoid floodi
4. GER or cause death Do not touch until ALL power is disconnected Warning Disconnect ALL power supply sources to the Controller before servicing to prevent shock or accident hazard Before attempting any troubleshooting on the Controller verify that the cause of a problem is not due to the motor pump or power source Then visually inspect the Controller for component damage and lose wiring If the problem cannot readily be resolved review the Sequence of Operation section for proper operation Then refer to the supplied wiring diagram and schematic and use a volt ohm meter to check the wiring to determine which component is faulty Page 9 of 12 Limited Service Fire Pump Controller Coil and Contact Replacement Coil Retainers Magnet Assembly Figure VI 1 Magnet Assembly and Retainers Coil Replacement Contact Replacement 1 Isolate all power sources Complete steps through 5 in left column 2 While pressing against the coil pull up slightly Remove the magnet assembly from the molded on the coil retainers and swing away from coils cover and movable arm 3 Pull the magnet assembly coil molded cover Remove the return spring from the center of and movable arm from the contactor movable arm 4 Remove the spring clip and remove the Remove the molded cover from movable arm armature from movable arm 5 Remove the coil from the magnet Press and slide the movable con
5. Hubbell Industrial Controls Inc A subsidiary of Hubbell Incorporated 50 Edwards St Madison OH 44057 Telephone 440 428 1161 FAX 440 428 7635 Instruction Manual Fire Pump Controller Model LX 1500 Limited Service Electric Publication No 197 April 2000 Limited Service Fire Pump Controller Table of Contents DTG OGUCUION Ss 5 sccssisacesteccnnicctacsocnctencecestocsssncesscnddetevsnsecseedps etessonkasdasosespecsouecdsasnsdubosseveseensgsbansesn II Specifications and Certifications csssssssossssssssssssssssscsscccssssssssssscsssccssssssscsssscssscsesss SLAKTET EE E E E E a atic oes EE E EEE O EE E EE E E MS ATG ALL OI S aici dad e as eda as as erat a dang ae Geran area sat E as Sanaa sna aan IIT Receiving Handling and Storage cccccssssssscsscsssssssssssssssccscssssssssssscccscccssssscssssscssecees PY Installation sssri esve cues os sndcases seuss vevossussieuswsud E Er S Er ea E ETE RE EES E V Seguenceof OPerationenseenecorsessiisvi striss iisti sopis pi aah cao ce pode eae eta VI SCARE Up POCO UIE igi cc ciucsscens te vacaanuceddeates scntasvesusaneee os sanaieodenataeracaanies edad tee can teesieaaeasrenenteeees V TE MEAN OT ANCE PA T T Preventive Matte nane ect casschs cstscustaassobsatatscnMasanobsn ts bscustadanobsatetscasMasanobinSstscustcanobsatotucaMadanoks Troubleshoot g ninisi sessies ii esin rssi ented Keia e deceedslVesaedsivedeed ed vereiceh denuded Kaaa Esai Coil and Con
6. UIT BREAKER in the correct A B C phase sequence 9 Connect the motor conductors to the load side of the motor contactor Note Refer to the Controller field connection diagrams Per the requirements of NFPA 20 conductors are sized for no less than 125 of the motor FLC full load current and not more than the lug sizes provided as shown on the Controller field connection diagrams Refer to the NFPA 70 NEC for cable ratings Secure conductors inside the cabinet so they do not interfere with or come in contact with the components 10 Connect the remote alarm contacts Refer to the supplied Controller field connection diagram for terminal points V Sequence of Operation The PLM phase loss reversal monitor provides contact output for phase loss and undervoltage PLM 2 in addition to a separate contact output for phase rotation PLM 1 Both output relays energize if all three phases are present and the phases are in the proper rotation If a phase loss or undervoltage condition occurs only the phase loss relay de energizes If the phases are reversed relative to the sequence on the PLM only the phase reversal relay de energizes If there is a total loss of the three phase voltage both output relays de energize Closing the CIRCUIT BREAKER DISCONNECTING MEANS energizes the PLM and the control transformer After a 3 5 second delay contacts PLM 1 open and the PHASE REVERSAL light should go off If there is a phase reversal PLM 1 remains
7. closed to turn on the PHASE REVERSAL light and energize the PRR phase reversal relay to provide remote indication of phase reversal The PLM 2 contacts also close after the 3 5 second delay to turn on the POWER AVAILABLE light and energize the PFR phase failure relay to provide remote indication that power is available Automatic Start When the PS pressure switch contacts close due to a decrease in pressure the CR relay coil energizes The CR contacts close to energize the TR1 timing relay factory set at 10 minutes to begin timing The TR1 contacts close to latch the CR relay and bypass the PS The CR contacts also energize contactor coil M1 to start the motor If the pressure increases the PS contacts open to de energize the CR relay and stop the motor if TR1 has timed out If TR1 is Page 5 of 12 Limited Service Fire Pump Controller still timing the CR relay remains energized and the motor continues to run for the duration of the timer setting Pressing the STOP push button stops the motor even if TR1 is timing If the Controller does not have a TRI timing relay the pump motor runs until the STOP push button is pressed Manual Local Start Pressing the START push button energizes relay LRSR The LRSR contacts close to latch the LRSR relay and energize the M1 contactor coil to start the motor The motor runs until the STOP button is pressed to de energize the LRSR coil Manual Stop Connecting the jumper wire between TB2
8. densation can result in damage to the insulation or corrosion of metal parts IV Installation 1 Consult the motor nameplate to determine voltage current and horsepower rating and compare with the Controller nameplate for matching data Release the door interlock by moving the CIRCUIT BREAKER DISCONNECTING MEANS to the OFF position Inspect the control transformer s primary connections for agreement with the line voltage of the incoming power Exercise all switches and contactors without power to see that they operate freely 5 Choose a location or base for the Controller that is non combustible and within site of the motor The base should not be subject to excessive vibration that may cause erratic operation of the PS pressure switch The Controller should be leveled so that the PS is level Sight across the PS cover screws Page 4 of 12 Limited Service Fire Pump Controller Caution Before drilling and punching holes in the cabinet for wiring connections cover the components inside the cabinet with a protective covering Debris may cause shorts or prevent operation of components 6 Punch holes in the top or the bottom of the cabinet for conduit 7 Connect the water pressure sensing line to the PS 1 4 NPT internal 3 4 16 external brass fitting on the bottom of the cabinet For further details consult the latest edition of NFPA 20 8 Connect the power supply conductors to the line side of the CIRC
9. dle in and rotate counterclockwise 45 to lock in the full ON position in a fast and continuous motion Caution Failure to engage the handle in a fast and continuous motion can result in damage to the contactor and failure to start the motor Pump Run Contacts The pump run contacts transfer any time the M1 contactor is closed by either electrical or mechanical means Phase Loss Contacts The phase loss contacts transfer when line or control power is lost or the line voltage drops more than 15 percent Phase Reversal Contacts The phase reversal contacts transfer when there is a phase reversal rotation other than A B C Page 6 of 12 Limited Service Fire Pump Controller VI Start Up Procedure Danger Shocks burns or death may result from high voltage Caution Only personnel who are familiar with the power distribution system and this manual should be allowed to perform this procedure 1 Verify that the motor nameplate horsepower and voltage match the Controller nameplate 2 Verify that the CIRCUIT BREAKER DISCONNECTING MEANS is open Check with the electrician to see if the Controller is connected directly to the main transformer If so apply the Service Disconnect label above the CIRCUIT BREAKER handle operator 3 Verify that the PLM is set to the line voltage 4 Verify that the customer connections to the CIRCUIT BREAKER and contactor are properly tightened 5 Carefully remove the foam packing
10. er Figure l 1 Block diagram of LX 1500 showing one phase ll Specifications and Certifications Specifications Voltage 208 240 380 480C Phase Loss Reversal Module A B C phase rotation 200 Series 208 240 VAC 60 Hz 3 phase 300 Series 380 415 VAC 50 Hz 3 phase 400 Series 440 480 VAC 60 Hz 3 phase Maximum Voltage 10 of highest nominal voltage Maximum Frequency Shift 0 1 Hz Phase Loss 18 of low voltage in one phase Page 3 of 12 Limited Service Fire Pump Controller Undervoltage Trip 15 below set point Time Delays Pick up 1 5 s fixed Drop out 1 5 s fixed Output Relays 10 A 120 VAC 5 A 240 VAC Indication green LED on for A B C phase rotation Surge Suppressor 650 V rating Temperature Operating 4 F to 104 F 20 C to 40 C Storage 4 F to 182 F 20 C to 85 C Certifications The Hubbell Limited Service Electric Fire Pump Controller is built to NFPA 20 requirements The Controller is listed by Underwriters Laboratory Factory Mutual Underwriters Laboratory Canada New York City Canadian Standards Association lll Receiving Handling and Storage 1 Immediately upon receipt carefully unpack and inspect the Controller for damage that may have occurred in shipment If damage or rough handling is evident file a damage claim with the transportation carrier If the Controller must be stored cover it and place in a clean dry location Avoid unheated locations where con
11. ng ensure the sprinkler system is completely installed and ready to be pressurized 9 Bump the motor by pressing the START button and then press the STOP button to check for proper rotation If not correct open the CIRCUIT BREAKER and change any two leads on the load side of the M1 contactor 10 Press the START push button Verify that the motor starts properly and runs at full speed Page 7 of 12 Limited Service Fire Pump Controller 11 Press the STOP push button to stop the motor 12 Start and stop the motor with the EMERGENCY MANUAL CONTROL handle Push and rotate the T handle in a quick motion to lock the contactor in the ON position to start Rotate the T handle clockwise and release to stop the motor Caution Failure to engage the handle in a fast and continuous motion can result in damage to the contactor and failure to start the motor If equipped with an LX 250 or LX 350 Automatic Transfer Switch complete the following additional tests 1 Verify connection of the engine generator set start wires to TB 1 and TB 2 at the top of the LX 250 Transfer Switch power panel or to TB8 1 and TB8 2 on the left side of the LX 350 Transfer Switch power panel Close the FIRE PUMP emergency ISOLATING SWITCH and open the CIRCUIT BREAKER The Automatic Transfer Switch should transfer to the alternate source per system requirements Bump the motor to check for proper rotation If incorrect move the FIRE PUMP ISOLATING SWITCH t
12. o the OFF position and switch the generator set off using the switch located on the generator Switch any two leads on the line side of the FIRE PUMP ISOLATING SWITCH Return the generator set control switch to the Auto position and close the FIRE PUMP ISOLATING SWITCH The generator set may start Operate the pump on the alternate emergency source using the START and STOP push buttons Close the CIRCUIT BREAKER The Control Module should now be sensing normal power and timing for retransfer Press the BYPASS RETRANSFER TO NORMAL push button to return the Transfer Switch to the normal position Page 8 of 12 Limited Service Fire Pump Controller Vil Maintenance Danger Do not open the Controller cabinet until ALL power is disconnected Shocks burns or death may result from high voltage Caution Only personnel who are familiar with the power distribution system and this manual should be allowed to inspect or perform maintenance on the Controller Preventive Maintenance A Protect the equipment against accumulation of dust and metal chips B Protect the equipment against conditions that result in excessive moisture C Exercise the equipment every week as part of routine maintenance to verify the integrity of the Controller Transfer Switch generator set power conductors pump and motor D Field lubrication is not necessary or required for the Controller Troubleshooting SS Hazardous voltage will shock burn A DAN
13. tact Replacement seeeseseeeessseessssreesssrressseretssserersssrressseteessseretessrressssreesssereeesee VIII Limited Service Fire Pump Controller Parts csssssssssssssssssssssssccccscssssssssssccssesees Attachments Typical Controller Schematic Typical Field Connection Diagram Notes Refer to job drawings for options For combination Automatic Transfer Switch Fire Pump Controller applications refer to Publication No 186 for the LX 250 Transfer Switch or Publication No 195 for the LX 350 Transfer Switch for details Page 2 of 12 Limited Service Fire Pump Controller Introduction The Hubbell Limited Service Fire Pump Controller provides automatic and manual control of small electric motor driven fire pumps and booster pumps of 30 horsepower or less All Controller components are inside the cabinet with indicating lights and switch handles located next to the door A pressure switch initiates automatic starting of the pump motor The Controller monitors the power phases and voltage The CIRCUIT BREAKER DISCONNECTING MEANS handle has a door interlock feature to prevent opening the door when the switch is closed The Controller also has an EMERGENCY MANUAL CONTROL handle to start the fire pump manually CIRCUIT BREAKER EMERGENCY DISCONNECTING MANUAL MEANS oe Incoming i To ara Fire Pump Motor Line LI M1 TI Surge Suppressor Control Pressure Panel l Switch Control l EEN Transform
14. tact and spring from movable arm 6 Replace the coil and reassemble Remove the screws holding stationary contacts in place and remove stationary contacts 7 Replace contacts and reassemble Notes for re assembly C The molded cover only fits one way The magnet and movable arm fit either way but operates more quietly if reassembled the same way before removal Do not attempt to remove or replace arc traps in cover Source General Electric GEH 5168 Page 10 of 12 Limited Service Fire Pump Controller VIII Limited Service Fire Pump Controller Parts Spares Symbot Desorpton Funcion Panno CR LRSR High Voltage Relay Starting Relay 31658141 2 Pole Relay Control Relay 31658123 FU1 FU2 Fuse 1 A MDL 1 Control Power 57361726 Octal socket TR1 48518012 2 Pole Relay socket LK PRR PFR 48518018 High Voltage Relay socket CR LRSR 48518022 1 Phase Monitor 208 240 V 57418398 a Phase Monitor 440 480 v__ Phase Loss Reversal 37418399 Transformer XFMR 208 230 380 460 V Control Power 120 V 57511355 Pressure Switch 10 300 PSI 57501023 1 PS P EPR Pressure Recorder 300 PSI 57501013 Operating handle 57504087 Emergency Manual T handle 91158006 Emergency Operator Push Rod Emergency Operator 91158005 Emergency Push Rod Pin 57401033 Push button NO green Start push button 80320105 Push button NC red Stop push button 80320104 PL4 5 6 7 Indicating lights 80324905 PL4 5 6 7
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