com www. thomsontechnology. com BCM 1220 BATTERY CHARGER 1. INSTALLATION Ensure that the battery charger is securely installed in a dry location where it will receive adequate ventilation. The ambient air temperature around the battery should not exceed 40°C. Connect a 120VAC or 240VAC, 50/60Hz, 15AAC supply circuit, c/w grounding conductor, to the battery charger supply terminals. Note: The internal transformer is reconnectable with jumpers for 120 or 240VAC input. Caution: The charger is supplied for 120 VAC input as standard. Connect the DC output to the battery to be charged. Excessively long or undersized DC leads will reduce the battery charger's output and will increase the time required to re-charge the battery. It is essential to observe the DC polarity. Ensure that all electrical connections are made in accordance with the applicable regulatory authorities. CAUTION! Batteries may produce explosive gases when being charged. Do not make electrical sparks or introduce It is flame of any kind in vicinity of a battery. from the battery and charger during recommended that all electrical loads be disconnected adjustment procedures. Always isolate the charger from the supply and the battery before making any electrical connections or adjustments. All servicing procedures should be Dangerous undertaken by a qualified technician only. injury or death. voltages are present within the charger which may cause 2. FLOAT & EQUALIZE MODES NOTE: If the charger is equipped with an APB 1210 alarm/control module, please refer to section 6. The charger has been factory adjusted for correct "float" and "equalize" voltage levels for standard lead-acid batteries...