FURNACE SAFEGUARD SUPERVISORY SYSTEM, WHICH SYSTEM IS SOLD AS A UNIT AND COMPRISES A COMMAND INITIATIVE UNIT; DECISION MAKING LOGIC; DRIVEN DEVICES-NAMELY IGNITER TRANSFORMERS, FUEL VALVE DRIVES, AIR DAMPER DRIVES, FUEL GUN EXTEND-RETRACT DRIVES, PULVERIZER CIRCUIT BREAKERS; AND PRIMARY SENSING ELEMENTS-NAMELY, FLAME SCANNERS, LIMIT SWITCHES, PRESSURE SENSORS, FLOW DETECTORS, LEVEL SENSORS, LOSS-OF-ELECTRIC POWER SENSORS

'air':30 'breaker':41 'circuit':40 'command':15 'compris':13 'damper':31 'decis':18 'detector':55 'devic':23 'devices-nam':22 'drive':29,32,38 'driven':21 'electr':61 'element':46 'elements-nam':45 'extend':36 'extend-retract':35 'flame':48 'flow':54 'fuel':27,33 'furnac':1 'gun':34 'ignit':25 'initi':16 'level':56 'limit':50 'logic':20 'loss':59 'loss-of-electr':58 'make':19 'name':24,47 'power':62 'pressur':52 'primari':43 'pulver':39 'retract':37 'safeguard':2 'scanner':49 'sens':44 'sensor':53,57,63 'sold':8 'supervisori':3 'switch':51 'system':4,6 'transform':26 'unit':11,17 'valv':28

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