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<br /> SE U N MODES OF FAILURE / A�ARM SCHEDULE I
<br /> Q E CE OF OPERATIOf� S .
<br /> ALARM ALARM ALARM ALARM ALARM
<br /> 1 . DESCRIPTION OF VACUUM PUMP BASIC OPERATION - o. a�RM PoiNTs ITEM ALARM SETPOINT ENG DELAY ACTION CAUSE DISPLAY DISPLAY CONTACT REMARKS
<br /> UNITS ) (MAIN) (ECMS)
<br /> • SEE MODES OF FAILURE / ALARMS SCHEDULE VALUE (SEC� (LOCAL
<br /> A SHORT TIME AFTER EACH VACUUM PUMP IS STARTED, ALLOWING IT TO REACH ITS FULL SPEED,
<br /> ITS SOLENOID VALVE OPENS, ALLOWING WATER TO BE INJECTED INTO THE PUMP. THE WATER FLOW E. LOCAL WATER SYSTEM STATUS INDICATION 1 CHILLED WATER PRESSURE LOW 35 PSIG 30 ALARM INDICATION VFD FAULT, LEAK YES YES NO
<br /> RATE IS CURRENTLY SET FOR 4 GPM, BY AN ADJUSTMENT TO A BALANCING VALVE. THIS WATER • LOCAL PANEL TO DISPLAY: .
<br /> HAS TWO PURPOSES:1. COOLING; 2. SEALING, ALLOWING THE PUMP TO OPERATE AT A HIGHER 0 RECYCLE WATER SYSTEM ON (GREEN STEADY DISPLAY) 2 CHILLED WATER PRESSURE LOW-LOW 3O PSIG 3O FAULT, SWITCH TO CITY VFD FAULT LEAK TEMP HIGH - HIGH WILL CAUSE SWITCH TO CITY WATER
<br /> , VACUUM. THE NORMAL OPERATING WATER PRESSURE IS 40 PSIG. 0 CITY WATER SYSTEM ON (RED FLASHING DISPLAY) WATER � YES YES YES SOON AFTER THIS
<br /> 0 ALL OF THE MODES OF FAILURE ALARMS .
<br /> THE NEW WATER RECYCLE SYSTEM IS DESIGNED TO KEEP EACH VACUUM PUMP'S AIR DISCHARGE 0 ALL OTHER ALARMS
<br /> TEMPERATURE BELOW A HIGH TEMPERATURE LIMIT, CURRENTLY SET FOR 200F. A TEMPERATURE NOTE: ANY ALARM POINT INDICATED RESULTS IN A SINGLE ALARM BEING SENT TO THE 3 RECYCLE WATER SYSTEM PRESSURE LOW 35 PSIG 10 ALARM INDICATION VFD FAULT, LEAK YES YES NO
<br /> LIMIT CONTROLLER IN A SMALL CONTROL PANEL ON THE EAST WALL OF THE PUMP ROOM IS HONEYWELL SYSTEM. THE NATURE OF THE ALARM WILL NOT BE INDICATED ON THE
<br /> CONNECTED TO A THERMOCOUPLE INSTALLED IN EACH PUMP'S AIR DISCHARGE PIPE. THIS SPECIAL HONEYWELL SYSTEM. SOMEONE WILL HAVE TO GO TO THE VACUUM PUMP ROOM AND RERD FAULT, SWITCH TO CITY
<br /> CONTROLLER DELIVERS AN ANALOG SIGNAL TO EACH PUMP'S PLC SYSTEM, AS WELL AS A THE ALARM ON THE LOCAL DISPLAY 4 RECYCLE WATER SYSTEM PRESSURE LOW-LOW 30 PSIG 10 WATER VFD FAULT, LEAK YES YES YES
<br /> HARD-WIRED CONTACT IN THE PUMP'S EMERGENCY STOP CIRCUIT. EACH PUMPS AIR DISCHARGE
<br /> TEMPERATURE MAY BE VIEWED ON THE MAIN HMI SCREEN ON THE MAIN PLC PANEL CLOSE TQ THE F• CHEM TREAT SYSTEM
<br /> WEST DOOR. IF THE DISCHARGE AIR TEMPERATURE EXCEEDS THE SPECIAL LIMIT CONTROLLER'S • INDICATES MEASURED CONDUCTIVITY IS 20% >SET POINT OF 100 PPM (1 PPMTDS = 1.56 5 RECYCLE WATER TEMPERATURE HIGH 55 DEG.F 3O ALARM INDICATION HX FAILURE, CWS BOOSTER PUMP FAILUR YES YES NO
<br /> USER-CONFIGURED HIGH TEMPERATURE SET-POINT, THE PUMP STOPS, THE ISOLATION VALVE MICRONHOS/CM) OR BLOW-DOWN VALVE FAILURE - LOCAL ALARM
<br /> CLOSES, AND THE BYPASS VALVE OPENS 100%, ALL IMMEDIATELY. THE VACUUM PUMP • NO FLOW DETECTED IN THE SAMPLE LINE - LOCAL ALARM 6 RECYCLE WATER TEMPERATURE HIGH-HIGH 60 DEG.F 3O FAULT, SWITCH TO CITY HX FAILURE, CWS BOOSTER PUMP FAILUR YES YES YES
<br /> MANUFACTURER, GARDNER DENVER, INDICATES THE PUMP'S BEST PERFORMANCE IS OBTAINED WHEN WATER '
<br /> OPERATING AT A DISCHARGE AIR TEMPERATURE IN THE RANGE OF 100F TO 150F.
<br /> � 7 SUMP PUMP LEVEL HIGH—HIGH ON N/A 30 FAULT, SWITCH TO CITY PUMP CAN'T KEEP UP, BAD ON SWITCH YES YES YES
<br /> A CONTROLLOGIX PLC IN THE MAIN PLC PANEL MONITORS SYSTEM VACUUM AND MAWTAINS A INCLUDE THIS AS A SEPARATE DRAWING - WATER �
<br /> SET-POINT OF 20 IN. HG. THIS PLC SIGNALS THE LOCAL COMPACTLOGIX PLC FOR EACH PUMP TO FAULT, SWITCH TO CITY
<br /> START OR STOP ITS PUMP BASED ON HOW FAR FROM VACUUM SET-POINT AND FOR HOW LONG. 3. AHU COOLING MODE OF OPERATION: 8 CHILLED WATER BOOSTER PUMP VFD FAULT ON N�A 0 VFD FAULT YES YES YES
<br /> AS MORE ROUTERS REQUIRE VACUUM, THE SYSTEM VACUUM DROPS AND MORE PUMPS ARE WATER �
<br /> STARTED. AS FEWER ROUTERS REQUIRE VACUUM, THE SYSTEM VACUUM RISES AND PUMPS ARE AHU COIL CONTROL VALVE REGULATES WAT R F W T
<br /> E LO 0 MAINTAIN AND AIR DISCHARGE TEMPERATURE AUL WITCH TO CITY
<br /> STOPPED. AS VACUUM DROPS, PUMPS ARE ADDED QUICKLY. AS VACUUM RISES, PUMPS ARE OF 65F (ADJ.). 9 COOLWG WATER CIRCULATION PUMP VFD FAULT ON N/A 0 WATER VFD FAULT YES YES YES
<br /> DROPPED MUCH MORE SLOWLY TO ALLOW BETTER VACUUM CONTROL. AT THIS TIME, 3 PUMPS ARE
<br /> CONTROLLED BY VARIABLE FREQUENCY DRIVE (VP6, VP7, VP9). THE OTHER PUMPS ARE STARTED A. MONITORING POINT (FOR HONEYWELL SYSTEM): FAULT SWITCH TO CITY
<br /> BY A SOFT-START MOTOR CONTROLLER AND SWITCH TO A BYPASS CONTACTOR TO RUN. . AHU OPERATION STATUS (ON/OFF) 10 SUMP PUMP VFD FAULT ON N/A O ' VFD FAULLT YES YES YES I'I
<br /> WATER
<br /> • DISCHARGE AIR TEMPERATURE FAULT SWITCH TO CITY
<br /> ALL PUMPS HAVE A NORMAL PUMP STOPPING SEQUENCE DESCRIBED AS FOLLOWS: • ENTERING AIR TEMPERATURE (FREEZE PROTECTION) 11 COOLING WATER SOURCE FAULT ON N�A 0 ' POWER SUPPLY FAILURE, FUSE BLOWN YES YES YES
<br /> • LARGE 16"ISOLATION VALVE IS IMMEDIATELY COMMANDED TO CLOSE; THIS VALVE SHOULD • AIR FILTER DIFFERENTIAL PRESSURE
<br /> WATER
<br /> ONLY EVER BE OPEN OR CLOSED.
<br /> � • SMALLER 10"ATMOSPHERIC BYPASS VALVE IS IMMEDIATELY COMMANDED TO OPEN FULLY; B. MONITORING POINT (FOR VACUUM PUMP ROOM PLC SYSTEM): 12 WATER STORAGE TANK LEVEL HIGH ON N/A 60 ALARM INDICATION TANK LEVEL HIGH, BAD SWITCH YES YES YES
<br /> THIS VALVE IS USUALLY CLOSED DURING NORMAL OPERATION, BUT CRACKS OPEN A BIT IF . AHU OPERATION STATUS (ON/OFF) �
<br /> VACUUM GETS T00 HIGH.
<br /> • DISCHARGE AIR TEMPERATURE I��
<br /> • THE WATER VALVE IS IMMEDIATELY DE-ENERGIZED, STOPPING WATER FLOW TO PUMP. . ENTERING AIR TEMPERATURE T00 LOW, ALARM BELOW 50F (ADJ.) 13 WATER STORAGE TANK LEVEL LOW ON N A 10 ALARM INDICATION TANK LEVEL LOW, BAD SWITCH YES YES YES
<br /> • PUMP CONTINUES TO RUN FOR A TIME TO ALLOW ITS INTERIOR TO DRY OUT; CURRENTLY �
<br /> THIS DURATION IS 90 SECONDS, ADJUSTABLE.
<br /> • PUMP MOTOR CONTROLLER IS COMMANDED TO STOP. �4 RECYCLE WATER FILTER DIFFERENTIAL PRESSURE ON N/A 60 ALARM INDICATION FILTERS PLUGGNG YES YES NO
<br /> HIGH
<br /> 2. DESCRIPTION OF VACUUM PUMP WATER RECYCLE SYSTEM OPERATION - �5 RECYCLE WATER FILTER DIFFERENTIAL PRESSURE ON N/A 60 FAULT, SWITCH TO CITY FILTERS PLUGGED YES YES YES
<br /> HIGH-HIGH WATER
<br /> BASIC DESCRIPTION OF OPERATION - SEAL WATER DISCHARGES FROM EACH VACUUM PUMP
<br /> SILENCER/SEPARATOR (12 MAXIMUM) DOWN EACH FLOOR DRAIN (WITH SEDIMENT BUCKET), INTO A 16 CHEMICAL TREATMENT SYSTEM ALARM ON N/A 0 ALARM INDICATION CHEMICAL TREATMENT SYSTEM ALARM YES YES YES
<br /> CCJMMON DIRECT BURIED GRAVITY DRAIN LINE AND COLLECTS INTO A SUMP. THE SUMP IS
<br /> ' PROVIDED WITH A BASKET STRAINER AT THE SUMP INLET. A SUMP PUMP RETURNS THE USED FAULT, SWITCH TO CITY
<br /> WATER THROUGH TWO STAGES OF FILTRATION (DUPLEX STRAINER AND FILTER) TO A WATER STORAGE 17 CHEMICAL TREATMENT SYSTEM FAULT ON N/A 0 WATER CHEMICAL TREATMENT SYSTEM FAULT YES YES YES �
<br /> ' TANK. THE WATER IS CHEMICALLY TREATED, COOLED, AND SENT BACK TO THE VACUUM PUMPS
<br /> FOR RE—USE. 18 RECYCLE WATER FLOW LOW-LOW TBD GPM 5 FAULT, SWITCH TO CITY SOURCE VALVE FAILED, CIRCULATION PUM YES YES YES SET FOR JUST ABOVE FLOW ACROSS BYPASS
<br /> THE SUMP PUMP WILL BE CONTROLLED FROM A VFD (CURRENTLY INVESTIGATING THI$ OPTION WITH
<br /> WATER FAILURE
<br /> MANUFACTURERS) TO SOMEWHAT MATCH THE WATER USAGE AND KEEP THE WATER STORAGE TANK
<br /> LEVEL FROM FLUCTUATING T00 MUCH.
<br /> SWITCHOVER TO RECYCLE WATER SYSTEM - THE RECYCLE WATER SYSTEM MUST BE ON AND
<br /> RUNNING STEADY FOR 5 MINUTES (ADJ.) BEFORE SWITCHWG FROM CITY WATER TO RECYCLED B I �L 0 F M AT E R I A�S
<br /> WATER.
<br /> FAILURE MODE OF OPERATION: IN THE EVENT OF A FAILURE IN THE WATER RECYCLE SYSTEM, THE
<br /> ITEM DEVICE ID DEVICE DESCRIPTION MANUFACTURER PART NUMBER PART DESCRIPTION
<br /> SYSTEM WILL AUTOMATICALLY SWITCH TO CITY WATER SUPPLY FOR THE VACUUM PUMPS AND 1 PT-104 CHILLED WATER HX INLET PRESSURE DWYER 682-2 PRESSURE TRANSDUCER, 0-100 PSI RANGE, 1/4 MALE NPT, 4-20MA OUTPUT
<br /> DISCHARGE THE USED WATER TO SANITARY SEWER. 2 CV-151 CHILLED WATER CONTROL VALVE HONEYWELL V5011N1099 VALVE, GLOBE, 2-WAY, 2", 3/8" STEM, DIRECT ACTING (STEM DOWN TO CLOSE), 2" NPT �
<br /> A. MODES OF FAILURE: 3 CONTROL CHILLED WATER CONTROL VALVE ACTUATOR HONEYWELL ML7425A VALVE ACTUATOR, ELECTRIC, SPRING RETURN, DRIVE STEM DOWN ON POWER FAILURE
<br /> • SEE MODES OF FAILURE / ALARMS SCHEDULE
<br /> IF ANY OF THE FOLLOWING ABNORMAL CONDITIONS EXIST, THE WATER RECYCLE SYSTEM PROCESS WATER HX OUTLET TEMPERATURE THERMOC�UPLE, TYPE J, .250X3-1/2", 316SS, UNGROUNDED, SPRING LOADED, 1/2X1/2" HEX FITTING &
<br /> PLC WILL SWITCH BACK TO CITY WATER:
<br /> 4 TE-251 SENSOR EUSTIS PYROCOM MHJ73U034SL10 ALUMINUM HEAD
<br /> * RECYCLE SYSTEM WATER PRESSURE DROPS BELOW A SPECIFIC SETPOINT, 30 PSIG, FOR 5 PROCESS WATER HX OUTLET TEMPERATURE EUSTIS PYROCOM TR300A020030 THERMOWELL, THREADED REDUCED, 3/4" NPT, .260" BORE, U=2", 316SS, 3.75" 0/A
<br /> A DURATION OF 10 SEGONDS, OR, CIRCULATION PUMP VFD FAULT. VALUES ARE WELL
<br /> ADJUSTABLE. 6 PT-253 PROCESS WATER HX OUTLET PRESSURE DWYER 682-2 PRESSURE TRANSDUCER, 0-100 PSI RANGE, 1/4 MALE NPT, 4-20MA OUTPUT
<br /> * RECYCLE SYSTEM WATER TEMPERATURE RISES ABOVE A SPECIFIC SETPOINT, 60F, FOR A PROCESS WATER PROCESS INLET
<br /> OURATION OF 60 SECONDS. VALUES ARE ADJUSTABLE. 7 PT-254 PRESSURE DWYER 682-2 PRESSURE TRANSDUCER, 0-100 PSI RANGE, 1/4 MALE NPT, 4-20MA OUTPUT
<br /> * SUMP PUMP FAILURE: WATER RECYCLE MODE AND SUMP PUMP HIGH-HIGH LEVEL FOR
<br /> 30 SECONDS, OR, VFD FAULT. VALUE IS ADJUSTABLE. 8 FT-255 PROCESS WATER HX OUTLET FLOW KEYENCE FD-Q50C FLOW SENSOR, CLAMP-ON, 1.5"-2.0" PIPE
<br /> * HEAT EXCHANGER FAILURE 9 EV-261 CITY WATER TO HDV PUMPS ASCO 8210G103 110 VAC SOLENOID VALVE, NORMALLY OPEN, 2—WAY, 110VAC COIL, 2" �
<br /> IN THE EVENT THAT BOTH RECYCLE WATER SYSTEM IS NOT AVAILABLE AND CITY
<br /> WATER IS NOT AVAILABLE, ALL VACUUM PUMPS ARE TO BE SHUT-DOWN. 10 EV-262 PROCESS WATER TO HDV PUMPS ASCO 8210G100 110 VAC SOLENOID VALVE, NORMALLY CLOSED, 2-WAY, 110VAC COIL, 2"
<br /> 11 DPT-338 PROCESS WATER RETURN DIFFERENTIAL DWYER WWDP-2 DIFFERENTIAL PRESSURE TRANSDUCER, SELECTABLE RANGE (10, 20, 50, 100 PSID), TWO 1/8 FEMALE NPT,
<br /> B. NORMAL (RECYCLE WATER SUPPLY) MODE OF OPERATION: PRESSURE 4-20MA OUTPUT
<br /> • SUMP PUMP IS CONTROLLED BY THE WATER LEVEL IN THE SUMP (HIGH LEVEL, PUMP ON; 12 LT-351 WATER TANK LEVEL GEMS SENSORS UCL-510 LEVEL TRANSDUCER, ULTRASONIC, 49.2 IN MAXIMUM
<br /> LOW LEVEL, PUMP OFF).
<br /> • 2—WAY VALVES (CITY WATER SUPPLY PORT CLOSED; RECYCLE WATER SYSTEM PORT 13 LS-352 WATER TANK LEVEL LOW LOW GEMS SENSORS LS-52100 LEVEL SWITCH, SIDE—MOUNT, STAINLESS STEEL, SPDT CONTACT, 1" MALE NPT
<br /> OPENED) 14 LS-371 SUMP LEVEL HIGH HIGH GEMS SENSORS MGRE40W LEVEL SWITCH, TILT/FLOAT STYLE, FORM C CONTACT, WIDE ANGLE, 40' CABLE
<br /> • WATER LEVEL IN STORAGE TANK RESIDES BETWEEN HIGH AND LOW LEVEL ALARM POINTS. 15 SUMP LEVEL HIGH HIGH GEMS SENSORS 17A1 XO WEIGHT FOR TILT/FLOAT LEVEL SWITCH
<br /> + CHEMICAL TREATMENT IS AUTOMATIC AND CONSISTS OF MEASURING CONDUCTIVITY, PH, AND
<br /> ORP (OXIDATION—REDUCTION POTENTIAL) AND CQNTINUOUSLY TAKING A SAMPLE OF THE 16 LS-372 SUMP LEVEL HIGH GEMS SENSORS MGRE40W LEVEL SWITCH, TILT/FLOAT STYLE, FORM C CONTACT, WIDE ANGLE, 40' CABLE
<br /> PROCESS FLUID. WALCHEM W600 SERIES CONTROLLER MEASURING CONDUCTIVITY, 17 SUMP LEVEL HIGH GEMS SENSORS 17A1 XO WEIGHT FOR TILT/FLOAT LEVEL SWITCH
<br /> PH/ORP. TWO METERING PUMPS AND TWO CHEMICAL TANKS WILL BE REQUIRED TO 18 LS-373 SUMP LEVEL LOW GEMS SENSORS MGRE40W LEVEL SWITCH, TILT
<br /> CHEMICALLY TREAT THIS SYSTEM. THE CHEMICAL TREATMENT SYSTEM WILL HAVE THE /FLOAT STYLE, FORM C CONTACT, WIDE ANGLE, 40' CABLE �
<br /> CAPABILITY OF AUTOMATICALLY BLOWING DOWN THE CONTENTS OF THE STORAGE TANK TO 19 SUMP LEVEL LOW GEMS SENSORS 17A1 XO WEIGHT FOR TILT/FLOAT LEVEL SWITCH
<br /> SANITARY SEWER.
<br /> • CIRC. PUMP SPEED (FLOW) CONTROLLED TO MAINTAIN A PRESSURE SET-POINT OF 30
<br /> PSIG (ADJ.) IN THE SUPPLY TO THE VACUUM PUMPS
<br /> • HEAT EXCHANGER CONTROL VALVE SET TO MAINTAIN 60F (ADJ.) DISCHARGE WATER
<br /> TEMPERATURE
<br /> • CHW BOOSTER PUMP SPEED CONTROLLED TO MAINTAIN 40 PSIG (ADJ.) PRESSURE AT
<br /> INLET TO HEAT EXCHANGER CONTROL VALVE
<br /> • PIPING FREEZE PROTECTION IS OFF
<br /> C. ABNORMAL (CITY WATER SUPPLY) MODE OF OPERATION:
<br /> • SUMP PUMP IS OFF
<br /> • 2-WAY VALVES (CITY WATER SUPPLY PORT OPENED; RECYCLE WATER SYSTEM PORT .
<br /> CLOSED)
<br /> � CHEMICAL TREATMENT WILL BE DISABLED WHEN IN ABNORMAL MODE
<br /> • CIRC. PUMP IS OFF
<br /> • HEAT EXCHANGER CONTROL VALVE SET TO MAINTAIN 60F (ADJ.) DISCHARGE WATER
<br /> TEMPERATURE (WITH MINIMAL WATER FLOW - VFD SET TO MINIMUM SPEED)
<br /> • CHW BOOSTER PUMP IS OFF
<br /> • PIPING FREEZE PROTECTION IS ON WHEN OUTDOOR AIR TEMPERATURE IS BELOW 40F
<br /> (ADJ.)
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<br /> 600 Stewart St., Ste 1400
<br /> Seattl�, 1/Vashington 98101
<br /> IS�UED FOR PE�MIT %�,'�� Tel 206.267.1700
<br /> �%
<br /> 07. � �. � 7 `�;�':' Fax 206.267.1 �01
<br /> .,�r.�'
<br /> SAZAN # 500-1775
<br /> SYM REVISION BY APPROVED DATE SYM REVISION BY APPROVED DATE ACCEPTABILITY DRAWN DATE SUBTITLE CURRENT REVISION SYMBOL DATE
<br /> - IRC - WBS 2.2.3.4.4 VACUUM PUMP WATER RECYCLE W257291 SAZAN 07.18.17 �� o��v�L,��i'�, THIS DESIGN AND/OR CHECKED PIPING AND INSTRUMENTATION DIAG�M W257291 — 07.18.17 �
<br /> �� , !�c`s��. SPECIFICATION IS APPROVED sHEET '
<br /> � �`'���,�� �� b' �.r���� aPPRavEo eY DEPT. DATE " �" TITLE IRC - WBS 2.2.3.4.4 VACUUM PUMP WATER RECYCLE
<br /> ��,;�r; ,�,'��`���?<��� ss<;i; :f . , CHECKED � .
<br /> � 3,�5� ;._ � M31 � 2
<br /> �°� ��r�,�rEft�° ���� �UILDING 4�-056
<br /> �S,��N�i ��,c�� APPROVED JOB N0. COMP N0.
<br /> ����
<br /> 07/17/2017 APPROVED MECHANICAL MASTER COL. X-X/X-X EVERETT owc rvo. 40-056-M310-2
<br />
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