580-26-103 Project Drawings.pdf

MCC-2 CIRCUIT AND FEEDER SCHEDULE

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Q) PROVIDE SCHEDULE 40, STEEL PIPING HEADER 24" SIZE,

CONSTRUCTED WITH VICTAULIC FITTINGS. EXTEND NEW 12" SCHEDULE

40, STEEL PIPING AS INDICATED TO EXISTING CHILLER CONDENSERS

AND PIPING RISERS TO TOWER. PROVIDE BLIND FLANGES AT EACH END.

@ NEW PNEUMATIC VALVE ACTUATOR. SEE M5.0 FOR DETAIL.

t( ) @ SUPPORT CONDENSER WATER SUPPLY AND RETURN HEADER IN STEEL

FRAME. SEE STRUCTURAL DRAWING S1 .0 FOR DETAIL.

@ EXISTING UNDERGROUND CONDENSER WATER SUPPLY AND RETURN

PIPING TO REMAIN. DO NOT DISTURB.

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@ REPLACE EXISTING TURBINE CONDENSER WATER PUMP WITH NEW

TURBINE CONDENSER WATER PUMP. SEE SCHEDULE FOR SIZING.

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@ EXISTING 300 TON COOLING TOWER TO REMAIN IN OPERATION

THROUGHOUT THE CONSTRUCTION PERIOD.

(J) NEW 1,150 TON COOLING TOWER CONSTRUCTED IN EXISTING CONCRETE

BASIN. SEE COOLING TOWER DRAWINGS AND SCHEDULE FOR DETAIL.

@ REPLACE EXISTING CONDENSER WATER SUPPLY AND RETURN PIPING

FROM FIRST FITTING JOINT ABOVE GRADE. REFER TO M3.0 AND M5.0

FOR ADDITIONAL INFORMATION.

@ PROVIDE NEW 4" BASIN DRAIN, SCHEDULE 40 PVC. CONNECT TO

EXISTING 6" SUMP DRAIN AS INDICATED. PROVIDE P-TRAP AT WALL.

MOUNT SECURELY TO SUMP WALL.

@ PROVIDE PVC CONNECTOR PIPING BETWEEN SUMPS, PIPE SIZE AS

INDICATED. CORE DRILL SUMP WALL. SEAL AROUND PIPE WITH

SUITABLE LINK-SEAL ANNULAR RING SEAL. SEE M3.0 FOR DETAIL.

QJ) 4" BASIN DRAIN THRU CONCRETE WALL. CORE DRILL FLUSH WITH

BASIN FLOOR. PROVIDE HYDRAULIC GROUT SEAL. SEE DETAIL ON

M3.0 FOR ADDITIONAL INFORMATION.

@ 6" VENT TO REMAIN, CLEAN AND PAINT TO MATCH TOWER COLOR.

@ EXTEND BYPASS PIPING INTO TOWER BASIN, AS INDICATED. SUPPORT

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SECURELY FROM BASIN FLOOR WITH S/S SUPPORTS AND FASTENERS.

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COOLING TOWER

MARK GPM EWT

DEG F

LWT

DEG F

CT-2 THRU CT-7 3,450 96 86

AMB.WB TONS

DEG F PER CELL

80 1,150

CCS: COMPOSITE COOLING SOLUTIONS

FAN MOTOR

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FAN

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266,153

SCHEDULE

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RPM

269.2

FAN TOWER VOLTS

TIP SPEED SP IN/H20 PHASE

11,840 0.668 480/3

MFGR MODEL

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BLDG 104 ◄.-� � CONDENSER WATER PUMP SCHEDULE

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CWP-2 THRU CONDENSER WATER

CWP-7

TURBINE 3,450

DATA BASED ON PUMP CURVE: JTS-16HMC-EC0247WP Rev A

FT EF RATED/MAX

69 80.97 1,770 23.84 l 1.19/12.44 74.24/75 480/3/60 SULZER JTS-16HMC

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DESCRIPTION OF SYSTEM DESIGN PHILOSOPHY

BUILDING 104 HOUSES SEVEN CHILLERS. THESE CHILLERS ARE

CIRCA 1987 AND BEING 20 YEARS OLD ARE IN VARYING STATES OF

OPERATING CONDITION. THERE IS ONE 300 TON CENTRIFUGAL AND

SIX 1,000 TON CENTRIFUGAL CHILLERS. THESE CHILLERS ARE

CONNECTED IN A PRIMARY /SECONDARY PUMPING ARRANGEMENT TO

A COMMON CHILLED WATER MANIFOLD WHICH INCLUDES A

1,000,000 GALLON CHILLED WATER STORAGE TANK. VARIABLE SPEED

CHILLED WATER PUMPS SERVE THE CHILLED WATER NEEDS OF THE

SITE FORM THIS CENTRAL LOCATION.

THE CONDENSER WATER SYSTEM SERVING THE SEVEN CHILLERS IS

COMPRISED OF AN INDEPENDENT CONDENSER LOOP AND TOWER,

CT-1, SERVING THE 300 TON MACHINE AND A COMMON

CONDENSER LOOP WITH SIX TOWERS, CT-2 THRU 7, SERVING THE

SIX 1,000 TON MACHINES.

EACH CHILLER CONDENSER IS CONNECTED TO IT'S RESPECTIVE

CONDENSER RETURN OR SUPPLY HEADER. EACH TOWER IS ALSO

CONNECTED TO THE CONDENSER RETURN OR SUPPLY HEADER.

COOLING TOWERS CT-2, 3, AND 4 ARE EQUIPPED WITH A

CONDENSER WATER BYPASS VALVE. EXISTING CHILLERS 2 THRU 7

IN THE PLANT MUST HAVE REASONABLY WARM CONDENSER WATER

SUPPLY TO OPERATE PROPERLY. LOAD ANALYSIS INDICATES THAT

THROUGHOUT THE WINTER MONTHS, NOVEMBER THRU FEBRUARY,

APPROXIMATELY THREE CHILLERS ARE REQUIRED TO MAINTAIN LOAD.

CHILLERS 8 AND 9 WHICH ARE SEPARATE 1,250 TON MACHINES

LOCATED ELSEWHERE, ARE USED IN THIS ARRANGEMENT PROVIDING

3,500 TONS OF CAPACITY DURING PEAK USAGE. THERE HAVE BEEN

PEAKS REQUIRING 4,500 TONS USING THE CHILLERS 8 AND 9.

THE DESIGN IS BASED ON CURRENT ENGINEERING PRACTICE USING

CHILLERS THAT WILL ACCEPT LOW TEMPERATURE WATER ENTERING

THE CONDENSER BARREL. HOWEVER, TO ACCOMMODATE THE

EXISTING CHILLERS, THE DESIGN ALSO ACCOUNTS FOR THE NEED

OF WARMER CONDENSER WATER SUPPLY.

THE NEW COOLING TOWERS, RATED AT 1,150 TONS, ARE SITUATED

ON A BASIN WITH A COUPLING PIPE PROVIDING A COMMON SUMP.

THIS SUMP CAN BE ISOLATED ON A TOWER BY TOWER BASIS FOR

MAINTENANCE PURPOSES. EACH TOWER IS EQUIPPED WITH A

CONDENSER WATER PUMP. THE CONDENSER PIPING MANIFOLD

PROVIDES A COMMON HEADER FOR TOTAL VERSATILITY IN

CONNECTING ANY SPECIFIC CHILLER, CH-2 THRU CH-7, WITH ANY

SPECIFIC TOWER, CT-2 THRU CT-7.

THE COOLING TOWERS, CT-2 THRU CT-4 ARE EQUIPPED WITH

CONDENSER WATER BYPASS VALVES TO ACCOMMODATE THE THREE

POTENTIAL WINTER USE CHILLERS. THE COOLING TOWERS CT-5

THRU CT-7 ARE FULL FLOW TOWERS TO ACCOMMODATE ANY

CHILLER DURING THE WARMER MONTHS OF THE YEAR AND NEW

REPLACEMENT CHILLERS IN THE FUTURE.

ALL CHILLER FANS ARE EQUIPPED WITH VARIABLE SPEED DRIVES,

VSD, FOR MODULATING CONTROL AT PART LOAD. CHILLER PLANT

OPERATION IS BOTH MANUAL AND AUTOMATIC. CHILLER SELECTION

IS MANUAL AND DONE BY PLANT PERSONNEL AS COOLING DEMAND

DICTATES. THE MANIFOLD CONCEPT PROVIDES GREATER FLEXIBILITY

IN PAIRING CHILLERS WITH TOWERS, EVEN IN THE COOLER WINTER

MONTHS. THE CONDENSER WATER TEMPERATURE WILL BE

CONTROLLED BY THE JCI METASYS CONTROL SYSTEM, MODULATE

THE BYPASS CONTROL VALVE WHERE IT EXISTS AND RAMP THE

SPEED OF THE TOWER FANS AS WATER TEMPERATURE INCREASES.

KEYED NOTES: A/M5.O

G) NEW CONDENSER WATER SUPPLY AND RETURN HEADER

CONNECTING SIX CHILLERS TO SIX COOLING TOWERS.

PROVIDE 24" BUTTERFLY VALVE FOR PHASED

CONSTRUCTION.

@ PROVIDE PNEUMATIC ACTUATOR FOR EXISTING BUTTERFLY

ISOLATION VALVE. PROVIDE BRAY SERIES 90, DOUBLE

ACTING ACTUATOR WITH SERIES 60 INTEGRAL SOLENOID

VALVE AND SERIES 55 SPEED CONTROL.

@ PROVIDE BUTTERFLY VALVE W/PNEUMATIC ACTUATOR, BRAY

12" SERIES 30, CAST IRON ASTM A 126 CLASS B, BUNA-N

SEAT, 304 s/s STEM , COATED DUCTILE IRON DISC.

PROVIDE BRAY SERIES 90, DOUBLE ACTING ACTUATOR WITH

SERIES 60 INTEGRAL SOLENOID VALVE AND SERIES 55

SPEED CONTROL.

@ PROVIDE 3-WAY BUTTERFLY VALVE IM BYPASS PIPING

ARRANGEMENT, __ SIZE, WITH PNEUMATIC ACTUATOR. CAST

IRON TEE WITH SERIES 30, SAST IRON ASTM A 126 CLASS B,

BUNA-N SEAT, 304 s/s STEM , COATED DUCTILE IRON

DISC. PROVIDE BRAY SERIES 90, DOUBLE ACTING

ACTUATOR WITH SERIES 60 INTEGRAL SOLENOID VALVE AND

SERIES 55 SPEED CONTROL AND SERIES 64 PNEUMATIC

POSITION ER.

@ PROVIDE 1" WELDOLET WITH BALL VALVE FOR CHEMICAL

FEED LOOP. PIPING, VALVES AND FITTINGS TO BE CPVC

CONSTRUCTION. PROVIDE LOCKING QUADRANT ON BALL

VALVE FOR FLOW BALANCING.

@ PROVIDE NEAR CHEMICAL PUMPS, THREE 3/4" FULL PORT

BALL VALVES TO BE USED BY V.A. CHEMICAL TREATMENT

PERSONNEL FOR CONNECTIONS OF OWNER PROVIDED

CHEMICAL TREATMENT EQUIPMENT.

{J) CHEMICAL TREATMENT LOOP CIRCULATING PUMP. GRUNDFOS

UPS 32-40, 20 GPM, AT 8 FT-HD, 460V, 3\1l.

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PLAN VIEW

EAST ELEVATION END VIEW