EFS20 Dual Bilge Pump Controller
Contents
1. 4 x 2 4 x 1 2 inch Alarms 85 dB at 30 cm 12 three LED indica tors Output for external loud alarm LA 20 Switching capability Pump 1 7 amps continu ously larger pumps until thermal protection cuts in Pump 2 13 Amps continuously larger pumps until thermal protection cuts in Thermal protection Thermal protection auto matically resets when cooled and pumps start again if necessary Page 5 Introduction The EFS 20 Automatic Dual Bilge Pump Controller monitors the presence of water in the bilge of your boat and turns on pump 1 if the electronic sensor detects water continuously for more than 15 seconds Once turned on the pump will run for at least 15 seconds If the water level does not recede within two minutes a second bilge pump is activated and an 85 dB alarm sounds until the water recedes or the ALARM RESET switch is pressed LED indicators show which bilge pumps arerunning andhow many times each was activated since the last SYSTEM RESET Ata glance you can tell ifthe bilge pumps were running while you were away and how many times each was activated You can also manually activate the bilge pumps from the front panel The EFS 20 can run two pumps drawing a total of up to 20 amps continuously and larger pumps for shorter periods of time Internal thermal shutdown protects the EFS 20 from overheating when driving large pumps Page 4 Maintenance You should verify proper operation of the EFS 22. 0 on a regular schedule of maintenance to prevent any problems Wires and connections can corrode and pump housings and seals can leak causing failure that can prevent proper operation Having dual pump control does provide some redundancy but there is no substitute for periodic maintenance checks In addition to verifying proper manual operation you should check proper operation of the elec tronic water sensor The simplest way to check for proper operation 1s to fill a small container with water and submerse the electronic water sensor for more than 15 seconds Verify that the EFS 20 switches on pump 1 Leaving the sensor sub merged for two minutes should activate pump 2 If necessary you can clean the stainless water sensor probes with a mild detergent and a rag Page 13 Installation Please read and adhere to the following directions carefully An error here can cause serious dam age which is NOT covered by the warranty Ifyou are unsure seek professional assistance Do not overtighten the screw terminals and watch that no loose strands of wire are free to short against electronic components Serious damage can re sult Remove the screws that attach the case front to the back Align the back onto any suitable surface Using the holes in the case back as a drill guide mark the location of the two holes with a soft pencil lead Remove the case back and drill two 2mm 3 32 inch holes where indicated Mount the case
3. Warranty Each unit 1s carefully tested and adjusted at the factory before shipping and is warranted for one full year against original defects in materials or workmanship This warranty does not include damage to the product resulting from accident or misuse If the product should become defective within the warranty period we will repair or replace it free of charge including free return transportation provided it is delivered prepaid to the dealer from whom it is originally purchased This warranty gives you specific legal rights and you may also have other rights which vary from state to state or country to country O W n e r S H andbook Other CruzPro Products Depth Sounders Speed Temperature Log Precision Digital Sea Water Temperature Gauge DC Volts Amps Amp Hour Monitors AC Volts Amps Frequency kW Monitor LPG Petrol Gas Detectors Alarms Bilge Water Alarms amp Bilge Pump Controllers Windlass Controller Chain Counter Digital Fuel Gauge amp Fuel Consumption Calculator Smart and Manual Alternator Regulators Marine Security System RPM Engine Hours Elapsed Time Gauge Digital Oil Pressure Gauge Alarm Digital Water Temperature Gauge Alarm One and Three Tank Liquid Level Gauge Alarm One and Three Bank Digital Volts Gauges Digital Amps Gauge 1200 deg C Digital Pyrometer Digital Clock Watch Race Timers Alarms 8 and 16 Amp Light Dimmers Motor Speed Controller Solar Panel Charge Co
4. at s distribution panel Next connect the loose ends of the pump wires to pump 1 and pump 2 through the size fuse recommended by the pump manufacturer Install the electronic water sensor in a suitable location in the bilge using the long stainless self tapping screw provided The stainless probes should point down Connect the loose ends of the electronic sensor wires to terminals T1 and T3 polarity is not important Connect the 12VDC wire from terminal T4 to your 12VDC distribution point only after all the other connections have been made and checked carefully When you make this last connection the EFS20 will beep once and the power on LED will light If any changes have to be made disconnect the 12VDC wire at the distribution point first Page 9 Thread a suitable size wire see Table 1 for the 12 VDC battery connection through the grom met and connect to terminal T4 do not connect to the battery yet Length From Source to Destination and Back 3 8 10 15 Meters 10 26 33 49 Feet AMS 5A 16 16 16 16 Gauge 10A 16 16 14 12 Gauge ISA 16 14 12 10 Gauge 20A 16 12 12 10 Gauge Table 1 Minimum Recommended Wire Size Thread a suitable size wire for pump 1 through the grommet and connect to terminal T5 Simi larly connect a suitable size wire from pump 2 to terminal T6 Page 8 Connect the loose end of the ground wire to a common ground point on your boat s dist
5. back using the two countersunk self tapping screws provided The case is not water proof and must be located in a dry location Thread a22 gauge or heavier ground wire through the rubber grommet on the bottom of the front case and connect it to terminal T2 as shown in Figure 1 Page 6 Whenever the water level drops so as to expose the probe within 15 seconds pump 1 will turn offand the pump 1 On Off LED will flash once every five seconds to tell you it had been activated once since the lastsystem RESET Ifpump 1 is automatically activated again the pump 1 ON Off LED will flash twice every five seconds etc To clear the flashing LED count press and hold the Reset key for three seconds until you hear a long beep If while in automatic mode the water does not recede below the sensor level within two minutes pump 2 will be activated and the alarm will sound The alarm will continue to sound until either the water recedes or you press the Resetkey Pressing either the Pump 1 On Off or Pump 2 On Off will also turn off the alarm return you to manual mode and turn On Off that pump as well When the water has receded both Pump 1 and Pump 2 On Off LEDS will flash the correct number of times Page 11 Operation of the EFS 20 When you connect power to the EFS 20 you should hear a short beep and the power on LED should light To turn on pump 1 press the switch labeled Pump 1 On Off The Pump 1 LED should light and p
6. nce The Auto Manual LED will light indicating that the pumps are being automatically controlled by the EFS 20 If the sensor detects water for more than 15 seconds pump 1 will start If the probe detects that water is not present even if for just an instance the 15 second timer will reset and start over from zero Once activated pump 1 will run for at least 15 seconds This feature and the 15 second timer prevents constant cycling of the pumps by a small amount of water sloshing in the bilge Page 10 3 Meter 10 foot Cable Page 7 Optional Switch Optional Switch PUMP 2 Fuse See pump manufacturer s recommendations for size Optional switch For remote Sensor manual operation Figure 1 Connection Diagram Thread a suitable size wire see Table 1 for the 12 VDC battery connection through the grom met and connect to terminal T4 do not connect to the battery yet Length From Source to Destination and Back 3 8 10 15 Meters 10 26 33 49 Feet AMD S SA 16 16 16 16 Gauge 10A 16 16 14 12 Gauge ISA 16 14 12 10 Gauge 20A 16 12 12 10 Gauge Table 1 Minimum Recommended Wire Size Thread a suitable size wire for pump 1 through the grommet and connect to terminal T5 Simi larly connect a suitable size wire from pump 2 to terminal T6 Page 8 Connect the loose end of the ground wire to a common ground point on your bo
7. ntrollers 4 amp 8 Channel NMEA Combiners RS 232 Convertors Engine Exhaust Temperature Monitor Alarm See full details at http www cruzpro com Email to info cruzpro com Page 14 Table of Contents Introduction 406i ot ataeh eee Wee oOo 4 PPeCHICAHONG s aarre rs dispit iieri iinei 3 Installation nnana anaana aaa 6 Operation of the EFS 20 10 Maintenance 22 44ctadecedneGeetanntouds 13 Other CruzPro Products naan womndes 14 Warranty nnnnnnnnnnnnnnnenn Back Cover 1997 BV Engineering Ver 1 1 Page 3 every five seconds If pump 1 has been on three times since the last system RESET and pump 2 has been on once then the Pump 1 On Off LED will flash three times and the Pump 2 On Off LED will flash once every five seconds The maximum number of flashes for each one of the Pump1 and Pump 2 LEDS is nine flashes every 5 seconds The EFS 20 is powerful enough to drive some very large pumps but may overheat if required to do so for very long Ifthe EFS 20 overheats it will shut down and rapid flash the Pump On Off and or Pump 2 On Off LEDS to indicate the overheated condition As soon as the thermal protection circuit senses that it 1s safe to resume 1t will switch the appropriate pump s back on again 1frequired Page 12 Specifications Power Supply 9 5 to 18 VDC 0 02 amp nominal Operating temperature 0 to 50 deg Celsius 32 to 122 deg Fahrenheit Size 100 x 60 x 30 mm
8. ribution panel Next connect the loose ends of the pump wires to pump 1 and pump 2 through the size fuse recommended by the pump manufacturer Install the electronic water sensor in a suitable location in the bilge using the long stainless self tapping screw provided The stainless probes should point down Connect the loose ends of the electronic sensor wires to terminals T1 and T3 polarity is not important Connect the 12VDC wire from terminal T4 to your 12VDC distribution point only after all the other connections have been made and checked carefully When you make this last connection the EFS20 will beep once and the power on LED will light If any changes have to be made disconnect the 12VDC wire at the distribution point first Page 9
9. ump 1 should be activated Similarly pressing the Pump 2 On Off switch will activate pump 2 Pressing either switch again will turn off the respective pump To activate the Automatic mode press the Auto Manual switch once The Auto Manual LED will light indicating that the pumps are being automatically controlled by the EFS 20 If the sensor detects water for more than 15 seconds pump 1 will start If the probe detects that water is not present even if for just an instance the 15 second timer will reset and start over from zero Once activated pump 1 will run for at least 15 seconds This feature and the 15 second timer prevents constant cycling of the pumps by a small amount of water sloshing in the bilge Page 10 3 Meter 10 foot Cable Page 7 Optional PUMP 1 Switch Optional Switch PUMP 2 Fuse See pump manufacturer s recommendations for size Optional switch For remote Sensor manual operation Figure 1 Connection Diagram Operation of the EFS 20 When you connect power to the EFS 20 you should hear a short beep and the power on LED should light To turn on pump 1 press the switch labeled Pump 1 On Off The Pump 1 LED should light and pump 1 should be activated Similarly pressing the Pump 2 On Off switch will activate pump 2 Pressing either switch again will turn off the respective pump To activate the Automatic mode press the Auto Manual switch o
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