This electrical schematic details the wiring connections for an emergency power-off system integrated with a leak detection panel and chiller shutdown controls. The control circuit is powered from 120-volt emergency power circuits feeding multiple emergency power-off pushbuttons designated EPO-1 through EPO-X. These switches interface with safety relays and shunt trip mechanisms for equipment shutdown. Dedicated neutrals are provided for each shunt trip circuit to ensure reliable operation.
LEAK DETECTION PANEL SAFETY RLY3 SHUNT TRIP X SHUNT TRIP 2 SAFETY RLY2 SHUNT TRIP 1 SAFETY RLY1 S/T S/T S/T FROM 120V E-POWER CKT 1 FROM 120V E-POWER CKT 2 LEAK DETECTION PANEL FROM E-POWER N FROM E-POWER N EPO-1 EPO-2 EPO-3 EPO-X DETAIL NOTES: 1. PROVIDE ALL WIRING, RACEWAY, PUSHBUTTONS AND TERMINATIONS FOR COMPLETE SHUNT TRIP FUNCTION. 2. PROVIDE DEDICATED NEUTRALS FOR EACH SHUNT TRIP CIRCUIT. 3. LOCATE EPO SWITCHES AS INDICATED ON THE DRAWINGS.
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