DATE: 11-26-03 FILE: IM_091-134-025_Rev_A INSTRUCTION MANUAL AUTO INTERLOCK IIA AUTOMATIC TRANSFER AND BATTERY CHARGER CIRCUIT ISOLATION SWITCH MODEL 091-134-025 3 YEAR WARRANTY KUSSMAUL ELECTRONICS CO., INC. 170 CHERRY AVE., WEST SAYVILLE, N.Y. 11796-1221 TEL: in NY 631-567-0314 TOLL FREE: 800-346-0857 FAX: 631-567-5826 INTRODUCTION: The Model 091-134-025 AUTO INTERLOCK IIA is an automatic power transfer relay specifically designed to isolate various battery charging systems such that ONLY one (1) charging system is actively charging a battery at any time. Referring to Figure 1 the Model 091-134-025 AUTO INTERLOCK IIA can accomodate three (3) battery charging system inputs and outputs as follows: INPUTS 1. Conventional 115VAC High Powered or multi-step external battery charger (>10A) via ShorePower 115VAC Input to High Power Charger. 2. 115VAC Generator equipped with DC output Alternator connected to common battery bank. 3. Low Power DC battery charger (<3A), i.e. Solar Panel, Float Voltage Charger. OUTPUTS 1. 115VAC to conventional high power charger. 2. Isolated DC battery charge circuit for Low Power Charger. THEORY OF OPERATION: The Model 091-134-025 AUTO INTERLOCK IIA senses the Generator 115VAC output and the status of a 115VAC connected "ShorePower" and configures the battery charging isolation as follows. ! With neither ShorePower connected nor the Generator running the AUTO INTERLOCK IIA connects the Low Power Charger (LPC) DC circuit to the battery. ! With ShorePower connected the AUTO INTERLOCK IIA transfers the facility supplied power to the AC input of a High Power Charger (HPC) and opens the DC circuit of the LPC to the battery. ! With the Generator running the AUTO INTERLOCK IIA senses the generator 115VAC output and disables the 115VAC ShorePower input (whether present or not) to the HPC and opens the DC circuit of the LPC to the battery. The AUTO INTERLOCK IIA provides three (3) indicators for "State Indication" in accordance with the following Table Battery Charging Circuit State and Indication Table Generator OFF OFF ON ON Shorepower OFF ON OFF ON Battery Charge Circuit LPC HPC Generator Generator State Indication ALL OFF Main & Output=ON, Auxiliary=OFF Auxiliary=ON, Main & Output=OFF Main & Auxiliary=ON, Output=OFF 5 4 3 2 1 * LOW POWER CHARGER * HIGH POWER CHARGER +12VDC OUT AC INPT NEMA 5-15 P/R + D D * GENERATOR ALTERNATOR KUSSMAUL AUTO ISOLATOR IIA 091-134-025 LOW POWER CHARGER + INPUT C + + * 12VDC BATTERY M C LOW POWER CHARGER + OUTPUT AC GEN 115VAC TO HPC B GEN AC SENSE IN B 115VAC SHOREPOWER * TRANSFER SWITCH AC LOADS SHORE PWR AC IN A A KUSSMAUL ELECTRONIC CO. WEST SAYVILLE, NY Title AUTO ISOLATOR IIA Size A Date: 4 3 * CUSTOMER SUPPLIED Document Number FIGURE 1, IM_091-134-025 Tuesday, December 02, 2003 2 Rev A Sheet 1 1 of 1 5 INSTALLATION: Refer to Figure 2 for a typical installtion of the Model 091-134-025 AUTO INTERLOCK IIA. A -025 INSTALLATION RECORD & WARRANTY Date Installed Installed By Vehicle Identification Vehicle Owner WARRANTY All products of Kussmaul Electronics Company Inc. are warranted to be free of defects of material or workmanship. Liability is limited to repairing or replacing at our factory, without charge, any material or defects which become apparent in normal use within 3 years from the date the equipment was shipped. Equipment is to be returned, shipping charges prepaid and will be returned, after repair, shipping charges paid. Kussmaul Electronics Company, Inc. shall have no liability for damages of any kind to associated equipment arising from the installation and /or use of the Kussmaul Electronics Company, Inc. products. The purchaser, by the acceptance of the equipment, assumes all liability for any damages which may result from its installation, use or misuse, by the purchaser, his or its employees or others. ...