Emerson COMMERCIAL WATER HEATER INTEGRATED CONTROL, 120-180 F RANGE, CONNECTS TO TEMP. PROBE AND ELECTRICAL CUT-OFF TO CONTROL GAS VALVE, DAMPER OR DRAFT INDUCER. DIAGNOSTIC LED FLASH CODES, 120 VAC INPUT, 24 VAC SEC., REPLACES AO SMITH 11E79-101, BOCK 11E79