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Hubbell Industrial Controls, Inc.
A subsidiary of Hubbell Incorporated
HUBBELL
4301 Cheyenne Dr.
Archdale, NC 27263
Telephone (336) 434-2800
FAX (336) 434-2803
Instruction Manual
Model LX3000
Diesel Engine
Fire Pump Controller
Publication No. 203
December 2003
Page 1 of 17
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Instruction Manual LX3000 Diesel Fire Pump Controller Introduction Model LX3000 engine controllers, automatically control the operation of diesel engine driven centrifugal fire pumps. Installation 1. Consult the Controller nameplate to verify that the DC voltage and ground polarity matches the engine battery. Also verify that the Controller AC power requirement matches available AC power. 2. Set the CONTROLLER ON / OFF - RESET SWITCH (inside controller) to the OFF position. CAUTION: Before dr
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2) Press and hold the clock symbol key during entire time setting procedure. a) Press the Day key to bring the actual day of the week into display. b) Press the h button to set the hours and the m button to set the minutes. If the keys are depressed for more than a second, the digits will advance rapidly. c) Release the clock key when finished with the settings. The colon between the hours and minutes will be flashing indicating the timer has started. Programming 1) To set the Timer to start t
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c. Turn the AUTOMATIC / MANUAL SWITCH to the AUTO position to stop the engine. Automatic Engine Cranking in TEST a. Disconnect engine wire from TB1-1 to prevent starting. b. Press the TEST PUSHBUTTON on the weekly TEST TIMER. The solenoid valve opens to discharge water, and the pressure switch contacts close to initiate cranking. c. The controller will crank the engine on battery 1 for 15 second intervals followed by 15 second rest period. It will then crank 15 seconds on battery 2, followed by
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b. Wait 10 seconds for the Oil Pressure Delay interval to expire, then momentarily jumper TB1-4 to TB1-11. The alarm will sound and the Common Trouble relay will energize. The LOW OIL PRESSURE LED will come on and remain on after the engine stops. c. Turn the CONTROLLLER ON / OFF - RESET SWITCH to the OFF - RESET position then back to the CONTROLLER ON position to reset the LOW OIL PRESSURE Alarm. High Water Temperature Test a. WITH the AUTOMATIC / MANUAL SWITCH in the AUTOMATIC position, start
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Troubleshooting Hazardous voltage will shock, burn, ! or cause death. DANGER Do not touch until ALL power is disconnected. WARNING: Disconnect AC power to the Controller before servicing to prevent shock or accident hazard. Before troubleshooting, perform the following checks: a. visual inspection for physical damage. b. ensure that all switches are in the normal operating position. c. ensure that the engine controls are set for operation. d. ensure that all wiring connections are secure. e. re
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Table 6-1 Troubleshooting Condition Possible cause Checks Action Batteries Voltmeters should read Check electrolyte at least 12.5 or 25 VDC Test and recharge bad Check each battery in battery(s) bank for correct voltage Replace battery(s) with good battery(s) Battery circuits Check battery and Clean and tighten ground connections connections as necessary Engine does not crank Check battery voltage with MANUAL START Check battery cables and connections Check engine starter Clean and t
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Table 6-1 Troubleshooting (Continued) Condition Possible cause Checks Action Water and fuel solenoid Check battery voltage Clean and tighten circuits connections Replace Engine Relay Check WATER and Board FUEL Relay Replace Main Logic Engine cranks but does Board not start Water and fuel solenoid Check solenoids Replace solenoid(s) or valves Check fuel and water valve(s) lines Check engine, fuel, fuel Complete necessary filter engine repairs Engine continues to Engine Crank Relay or Check Cr
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Condition Possible cause Checks Action Engine stops without Water and Fuel Check Water and Fuel Replace Engine Relay having to press STOP solenoid circuits and Relay Board button or before run valves, or time is complete Main Logic Board Replace Main Logic faulty Board Test Timer or Test No power to solenoid Check Water Dump Replace Engine Relay Pushbutton does not drain valve, or faulty Solenoid Relay Board start engine valve AUTOMATIC / Faulty Timer Check solenoid valve MANUAL SWITCH in Repla
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No HIGH ENGINE Water temperature Connect a jumper Replace water TEMP indication switch across the water temperature switch temperature switch on the engine Start engine with MANUAL START switch Verify that engine starts and alarm sounds Engine overspeed does not stop engine Faulty or mis-adjusted Check sensor Replace sensor No indication magnetic sensor installation Replace Main Logic Main Logic Board Board faulty Indication but engine does not stop under overspeed simulation Cranking and rest M
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Table 6-1 Troubleshooting (Continued) Condition Possible cause Checks Action Engine does not crank Remote switch faulty Check switch and Repair circuits with Remote Start switch circuits Replace switch Main Logic Board Cranks when water faulty Check Main Logic Replace Main logic pressure decreases Board Board Engine does not start Power Sense Board or Check Power Sense Replace Power Sense after AC power loss Main Logic Board Board Board faulty Replace Main Logic Check Main Logic Board Board En
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Pressure Switch / Recorder Changing the Chart Paper First, locate the “change chart” button (#3) located in the upper left corner of the recorder. Press and hold this button for approximately one (1) second until the pen begins to move to the left of the chart. Wait until the pen has moved completely off of the chart. To remove the chart paper, unscrew (counter-clockwise) the “hub” knob at the center of the chart. Remove the old chart paper and position the new one so that the correct time coi
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Figure 4 Pressure Settings SEE NOTE (3) Status LED’S Stop Pressure Start Pressure
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Battery Charger Introduction The Power Sense Board monitors the charging current and voltage of both chargers. LED’s indicate that the chargers are supplying current output, that the battery / charger voltage is above 90%, and that AC Power is available to power the chargers. Specifications LED Indication READY, green On indicates float condition CHARGING, yellow On indicates charge in progress CHARGE CURRENT, green Charging current greater than or equal to current indicated WARNING: L
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Troubleshooting Chart Symptom Possible cause Solution All charger LED’s off, 1) No AC power 1) Check for 120 V Charger power cabinet CHARGER FAILURE 2) Hubbell recommends that the indicating light on 2) Charger AC fuse blown charger be returned for repair Charge Current LED’s scroll, 1) Battery connections 1) Check battery connections cabinet CHARGER FAILURE reversed, 2) Hubbell recommends that the indicating light on 2) Charger DC fuse blown charger be returned for repair The charge
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Location and Description of Control Settings
