User manual KUSSMAUL 091-32

[. . . ] (NOTE THAT THE RELAYS ARE NOT PART OF THE "LOAD MANAGER" AND ARE SUPPLIED BY THE INSTALLER) The second highest priority load is wired to relay 2 which is operated by terminal 4. A total of 7 relays, decreasing in priority are operated by terminals 5, 6, 7, 8, & 9. Upon start-up, when the LOAD MANAGER operates as a sequential loading device, the loads are applied in priority order with the highest priority first. When the LOAD MANAGER feature is enabled and excessive electrical loads cause a drop in battery voltage, the LOAD MANAGER will deenergize loads at approximately 60 second intervals starting with the lowest priority. [. . . ] This will then cause the Load Manager to shed some loads. Pin 2: This pin is a manual override of the Load Manager. Grounding Pin 2 will energize all of the relays and bypass the Load Manager. No other inputs are required except the proper connection to the load relays. Ground Pin 2 is an excellent way to verify the relay wiring on installation or to bypass the Load Manager in case of malfunction. Connection to Pin 2 is not required for Load Manager operation Pins 3, 4, 5, 6, 7, 8, & 9: These pins connect to the "low" side of the relays. The relay coils must be energized with +12 volts and connection to ground is made through the Load Manager. The installation instructions show that the manual control switch for each relay is wired to the "low" side. It is not the only configuration that is possible. The individual load switches can be wired to the supply side of the relay. The only requirement is that the Load Manager must be the device that grounds the relay. Pin 10: This is the ground pin for the Load Manager. It must be connected to a good ground or returned directly to the battery negative. Any voltage drop between the point where Pin 10 is connected and the battery ( - ) will be sensed as a decrease in battery voltage and will raise the voltage at which the load shedding starts. A good check of an installation us to use a sensitive voltmeter and measure the voltage between Pin 10 and the battery ( - ) post. This voltage should not exceed . 050 volts for all the load relays energized. Note that Pin 10 carries the total current of all the 7 relay coils connected to the Load Manager output. long wire connected to Pin 10 this would require a minimum wire size of #14 AWG. Pin 11: This is the output to the display. The Load Manager display contains two LED's. One LED, the green one, is illuminated whenever the +12 volts is applied to the display. This indicates that the load management circuit is active. The red LED is illuminated by grounding the yellow wire of the display. [. . . ] The first with only a single battery and the second with six batteries in parallel. Now, for any given overload, the voltage of the single battery will decrease much more rapidly than the voltage of the six batteries in parallel. Thus the Load Manager will detect the overload sooner with the single battery and start to shed loads. Similarly for any battery configuration, if the overload, the amount that the load current exceeds the alternator output, is larger, then the battery voltage will drop faster and load shedding will occur sooner. ON OFF ON OFF ON OFF ON OFF ON OFF Figure 2, Basic Switch Settings Figure 3, Outline, load Manager LOAD MANAGER 091-32 Figure 1, Schematic, Load Manager Installation INSTALLATION RECORD & WARRANTY Date Installed Installed By Vehicle Identification Vehicle Owner WARRANTY All products of Kussmaul Electronics Company Inc. [. . . ]