Hubbell Industrial Controls, Inc. A subsidiary of Hubbell Incorporated 4301 Cheyenne Dr. Archdale, NC 27263 HUBBELL Telephone (336) 434-2800 FAX (336) 434-2803 Instruction Manual Model LX3000 Diesel Engine Fire Pump Controller Publication No.
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.
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.
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.
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.
Troubleshooting ! DANGER Hazardous voltage will shock, burn, or cause death. 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.
Table 6-1 Troubleshooting Condition Possible cause Checks Action Batteries Voltmeters should read Check electrolyte at least 12.
Table 6-1 Troubleshooting (Continued) Condition Possible cause Checks Water and fuel solenoid Check battery voltage circuits Check WATER and FUEL Relay Engine cranks but does not start Water and fuel solenoid Check solenoids valves Check fuel and water lines Action Clean and tighten connections Replace Engine Relay Board Replace Main Logic Board Replace solenoid(s) or valve(s) Check engine, fuel, fuel Complete necessary filter engine repairs Engine continues to crank after starting Engine Crank Relay
Condition Engine stops without having to press STOP button or before run time is complete Possible cause Water and Fuel solenoid circuits and valves, or Checks Check Water and Fuel Relay Main Logic Board faulty Test Timer or Test Pushbutton does not start engine AUTOMATIC / MANUAL SWITCH in AUTO Replace Engine Relay Board Replace Main Logic Board No power to solenoid drain valve, or faulty valve Check Water Dump Solenoid Relay Replace Engine Relay Board Faulty Timer Check solenoid valve Replace v
No HIGH ENGINE TEMP indication Water temperature switch Connect a jumper Replace water 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 No indication Faulty or mis-adjusted magnetic sensor Check sensor installation Indication but engine does not stop under overspeed simulation Replace sensor Replace Main Logic Board Main Logic Board faulty Main Logic Board fault
Table 6-1 Troubleshooting (Continued) Condition Engine does not crank with Remote Start Cranks when water pressure decreases Engine does not start after AC power loss Engine does not stop with optional AUTO STOP Possible cause Remote switch faulty Main Logic Board faulty Power Sense Board or Main Logic Board faulty Checks Action Check switch and switch circuits Repair circuits Replace switch Check Main Logic Board Replace Main logic Board Check Power Sense Board Replace Power Sense Board Check M
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.
Figure 4 Pressure Settings SEE NOTE (3) Status LED’S Stop Pressure Start Pressure
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.
Troubleshooting Chart Symptom Possible cause Solution All charger LED’s off, cabinet CHARGER FAILURE indicating light on 1) No AC power 1) Check for 120 V Charger power 2) Charger AC fuse blown 2) Hubbell recommends that the charger be returned for repair Charge Current LED’s scroll, cabinet CHARGER FAILURE indicating light on 1) Battery connections reversed, 6 6 2) Charger DC fuse blown 1) Check battery connections 2) Hubbell recommends that the charger be returned for repair The charger LED’
Location and Description of Control Settings
