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LEGEND <br /> SEQUENCE OF OPERATION <br /> 737 WASH WASTE SYSTEM: <br /> A. SYSTEM CONSISTS OF: <br /> • FOUR PUMPS: SP-88A, SP-886, SP-89A, AND SP-89B. <br /> • TWO WASTE STORAGE TANKS: EV-532 AND EV-533. <br /> • A FLOAT TREE WITH FOUR LEVELS: LOW—LOW, LOW, HIGH, AND HIGH—HIGH. <br /> • STARTERS FOR EACH PUMP MOTOR. <br /> • SAFETY THERMAL RELIEF ON EACH PUMP. <br /> B. TANK LEVEL CONTROL: <br /> • LOW LOW LEVEL FLOAT — PUMPS DISABLED. GENERAL NOTES <br /> • LOW LEVEL FLOAT — LEAD PUMP ENABLED. <br /> • HIGH LEVEL FLOAT — LAG PUMP ENABLED. <br /> • HIGH HIGH LEVEL FLOAT — LEAD AND LAG PUMPS STILL ENABLED — HIGH HIGH LEVEL CRITICAL <br /> ALARM TRIGGERED WITH A 30 SECOND DELAY (ADJ.) <br /> • WHEN LOW LOW LEVEL FLOAT IS REACHED PUMP—A & B SHALL BE DISABLED. WHEN LOW LEVEL <br /> FLOAT IS REACHED THE LEAD PUMP SHALL BE ENABLED. WHEN THE HIGH LEVEL FLOAT IS REACHED <br /> THE LAG PUMP SHALL BE ENABLED. WHEN THE HIGH HIGH LEVEL FLOAT IS TRIGGERED A "HIGH HIGH <br /> LEVEL CRITICAL ALARM" WILL ANNUNCIATE TO THE FMCS. THE HIGH HIGH LEVEL CRITICAL ALARM WILL <br /> BE A LATCHING ALARM AND WILL REQUIRE A MANUAL RESET VIA THE HONEYWELL EBI FROM END <br /> SYSTEM. THE LEAD PUMP WILL SWAP ON FAIL IF THERE IS A MISMATCH OF COMMAND VERSUS <br /> STATUS (PUMP FAIL ALARM). THE LEAD PUMP WILL SWAP BASED ON A RUN TIME SETPOINT OF 8 <br /> HOURS (ADJ.). <br /> D. ALARM CONDITIONS: <br /> • UPON THE WATER LEVEL RISING TO THE HIGH—HIGH LEVEL, ALARM LIGHT SHALL TURN ON AT THE <br /> ASSOCIATED WASTE CONNECTION ON THE FIRST FLOOR, AUDIO AND VISUAL ALARMS SHALL BE <br /> INITIATED IN THE AREA, AND ALARM SHALL BE SENT TO EMCS SYSTEM. <br /> • HIGH HIGH LEVEL ALARM WITH A 30 SECOND ALARM DELAY (ADJ.). (CRITICAL ALARM). REFERENCE DRAMS <br /> • PUMP FAIL ALARM: PUMP FAIL ALARM IS GENERATED WHEN PUMP IS COMMANDED ON BUT THE <br /> STATUS IS OFF OR WHEN THE PUMP IS COMMANDED OFF BUT THE STATUS IS ON WITH A DELAY OF <br /> 60 SECONDS (ADJ). (CRITICAL ALARM) <br /> • PUMP OVERRUN ALARM: WHEN ONE OR BOTH PUMPS ARE RUNNING FOR MORE THAN 10 MINUTES <br /> (ADJ.) GERNERATE AND ALARM. (CRITICAL ALARM) <br /> E. DOWNSTREAM TANK INTERLOCK WITH SE-6: <br /> • PUMPS SHALL BE DISABLED BY THE EMCS IF SE-6 IS FULL. <br /> • ALARM LIGHT SHALL TURN ON AT THE ASSOCIATED WASTE CONNECTIONS ON THE FIRST FLOOR. <br /> CONSTRUCTION NOTES <br /> pk� ISSUED FOR CONSTRUCTION <br /> PROFESSIONAL STAMP & SIGNATURE EERS <br /> APPLIES TO WORK WITHIN THE CLOUDED Seattle//Spokane//Baltimore DESIGN BY FSi DATE 03.14.24 <br /> REVISION AREAS ONLY AS INDICATED <br /> SYM REVISION BY APPROVED DATE SYM REVISION BY APPROVED DATE DRAWN DATE SUBTITLE CURRENT REVISION SYMBOL DATE <br /> M. CNq ACCEPTABILITY wile o3.,4.24 PROCESS CONTROL DIAGRAMS AND SEQUENCE W8861360 OR G 03.14.24 <br /> O THIS DESIGN AND OR H K <br /> ORIG 737 NORTH LINE—40-26 WING TANK CLEANOUT W8861360 `Si KMC 03.14.24 �'�ins/„ SPECIFICATION IS APPROVED <br /> KMC 03.14.24 SHEET <br /> BOE/A/G® APPROVED BY DEPT. DATE KRL o3,a24 TITLE 737 NORTH LINE — 40-26 WING TANK CLEANOUI M338 <br /> CHECKED <br /> APPROVED BUILDING 40-026 JOB N0. COMP N0. <br /> ess/ONAL ENS\ <br /> APPROVED MECHANICAL MASTER EVERETT, WA Dwc N0. 40-026—M338 <br />