M01RevB.pdf

INDUSTRIAL PLANNING AND DESIGN OFFICE

FRCSW

NAVAL BASE CORONADO, SAN DIEGO, CA

UPGRADE CHILLED WATER SYSTEM IN

GENERATOR SHOP

M-01

DWG NOCODE IDENT NO.SIZE

SHEET OF

AUTOCAD

SCALE:

SHOWN

DESIGN:

CHECKED:

BLDG.

REF

FILE

01/22D. MCADAMS

WR50438 E 91145

1 6

P97595

P97595M1.DWG

THE PURPOSE OF THIS PROJECT IS TO INSTALL A NEW CHILLED WATER SYSTEM FOR THE GENERATOR RE-WORK COMPLEX IN BUILDING 378. WHILE THIS DRAWING (SIX SHEETS TOTAL) SHOWS THE ENTIRE SYSTEM, PARTS OF THE WORK TO INSTALL IT SHALL BE ACCOMPLISHED BY A CONTRACTOR, AND PARTS WILL BE ACCOMPLISHED BY GOVERNMENT PERSONNEL.

THE CONTRACTOR WORK SHALL BE IDENTIFIED WITH THE WORDS "BY CONTRACTOR", AND THE GOVERNMENT WORK SHALL BE IDENTIFIED "BY GOVERNMENT" PIPING NOT IDENTIFIED AS THE RESPONSIBILITY OF CONTRACTOR OR GOVERNMENT (THE PIPING BETWEEN IDENTIFIED AREAS ON SHEET M-02) SHALL BE INSTALLED BY THE GOVERNMENT. THE RESPONSIBLE PROVIDER (CONTRACTOR OR GOVERNMENT) SHALL PROVIDE ALL EQUIPMENT, MATERIALS AND LABOR NECESSARY TO COMPLETE HIS/HER ASSIGNED PARTS OF THIS PROJECT. NOTE THAT PROCUREMENT, DELIVERY, AND INSTALLATION OF ALL EQUIPMENT SHOWN IN THE EQUIPMENT SCHEDULE ON SHEET M-06 IS THE RESPONSIBILITY OF THE CONTRACTOR.

CONTRACTOR SHALL ALSO PROVIDE ALL WATER DISTRIBUTION AND ELECTRICAL CONNECTIONS TO THE EQUIPMENT AS SHOWN IN THIS DRAWING. PIPE MANIFOLDS, AND THE SUPPORT THEREOF ARE ALSO THE RESPONSIBILITY OF THE CONTRACTOR. CONTRACTOR SHALL ALSO HAVE ADDITIONAL RESPONSIBILITIES NOT INCLUDED IN THIS NOTE, BUT SHOWN OR NOTED

ELSEWHERE IN THIS DRAWING.

ALL NOTES AND LEGENDS SHOWN ON THIS DRAWING SHALL APPLY TO ALL WORK PERFORMED, BOTH BY CONTRACTOR AND BY THE GOVERNMENT. UNLESS OTHERWISE INDICATED, ANY AND ALL NOTES AND LEGENDS SHOWN ON ANY OF THE SHEETS INCLUDED IN THIS DRAWING SHALL APPLY TO ALL SHEETS INCLUDED IN THIS DRAWING.

WATER CHILLERS WC-1 AND WC-2 ARE EXISTING UNITS OWNED BY FRC SOUTHWEST, AND ARE LOCATED ON THE HANGAR BAY MEZZANINE,. CURRENTLY, THEY ARE ATTACHED TO

ACCESSORY STORAGE TANKS DIRECTLY UNDER EACH UNIT:

A. REMOVE BOTH WC-1 AND WC-2 FROM THEIR CURRENT LOCATIONS ON THE HANGAR BAY MEZZANINE.

B. REMOVE THE ACCESSORY STORAGE TANKS FROM UNDERNEATH EACH UNIT.

C. POSITION WC-1 AND WC-2 WITHOUT THE ACCESSORY STORAGE TANKS WHERE SHOWN ON THE MAIN SHOP FLOOR INSIDE THE MAIN SHOP AREA.

WC-1 AND WC-2 EACH ARE EQUIPPED WITH THEIR OWN INTERNAL CIRCULATION PUMPS, AND THESE EXISTING PUMPS SHALL BE USED TO CIRCULATE WATER FLOW THROUGH EACH

CHILLER AND TO THE WT-1 BUFFER STORAGE TANK.

WATER CHILLERS WC-3 AND WC-4 DO NOT CURRENTLY EXIST, AND SHALL BE PURCHASED NEW FROM THE MANUFACTURER BY THE CONTRACTOR. THEY SHALL BE PURCHASED WITHOUT ACCESSORY STORAGE TANKS, AND WITHOUT INTERNAL CIRCULATION PUMPS. THEY SHALL BE POSITIONED ON THE HANGAR BAY MEZZANINE AS SHOWN. REPOSITION AND RE-SECURE SKID BEAMS ON MEZZANINE AS REQUIRED TO MEET SEPARATION REQUIREMENTS OF NEW WC-3 AND WC-4 CHILLERS. WATER CIRCULATION FOR WC-3 AND WC-4 SHALL BE ACCOMPLISHED VIA NEW EXTERNAL PUMPS CP-1 AND CP-2 LOCATED AS SHOWN ON THE MAIN SHOP FLOOR IN THE MAIN SHOP AREA.

ALL EQUIPMENT SHALL BE ANCHORED IN PLACE AS FOLLOWS:

A. WATER CHILLERS WC-1 AND WC-2 , AND CHILLED WATER BUFFER TANK WT-1 SHALL BE SECURED TO FLOOR USING APPROPRIATE ANCHORS AS SPECIFIED BY THE RESPECTIVE

EQUIPMENT MANUFACTURERS. ALL NEW PUMPS SHALL BE POSITIONED WITH VIBRATION ABSORBING RUBBER PADS BETWEEN PUMP BASE AND THE UPPER FLANGES OF W6 x 15 BEAMS PLACED ON CONCRETE FLOOR WHERE SHOWN IN SHEETS M-03 AND M-05. LOWER FLANGES OF W6 X 15 BEAMS SHALL BE SECURED TO CONCRETE FLOOR USING STAINLESS STEEL ANCHOR BOLTS (MINIMUM 12" DIA. X 4" EMBEDMENT DEPTH. 4 BOLTS PER BEAM). PRIOR TO INSTALLATION, BEAMS SHALL BE PRIMED WITH RUST RESISTANT

EPOXY PAINT.

B. THE TWO NEW WATER CHILLERS TO BE LOCATED ON THE EQUIPMENT MEZZANINE IN THE AIRCRAFT HANGAR BAY (WC-3 AND WC-4) SHALL BE MOUNTED ON SKID BEAMS AND SECURED TO THE MEZZANINE IN THE SAME MANNER AS THE TWO EXISTING WATER CHILLERS TO BE REMOVED FROM THE MEZZANINE AND RE-LOCATED TO THE SHOP FLOOR (WC-1 AND WC-2). EXISTING SKID BEAMS MAY BE RE-USED IF NOT DAMAGED, AND SECURING METHOD TO MEZZANINE SHALL BE SAME AS THAT USED CURRENTLY FOR THE EXISTING

WATER CHILLERS.

WHILE FLANGED CONNECTIONS ARE SHOWN BETWEEN 8" STEEL PIPE PARTS, IT IS ALSO ACCEPTABLE TO USE WELDED JOINTS IF PREFERRED BY INSTALLATION CONTRACTOR.

ALL CONNECTIONS BETWEEN STEEL AND COPPER PIPING SHALL BE ACCOMPLISHED USING DIELECTRIC CONNECTIONS TO PREVENT CONTACT OF DISSIMILAR METALS. DIELECTRIC FITTINGS SHALL ALSO BE USED BETWEEN ALL PIPING AND FIXTURES , VALVES, AND OTHER APPURTENANCES WHENEVER REQUIRED TO PREVENT CONTACT BETWEEN DISSIMILAR

METALS.

ALL COPPER PIPING SHALL BE TYPE "L", AND COPPER-TO-COPPER CONNECTIONS SHALL BE ACCOMPLISHED VIA SOLDERING USING LEAD FREE SOLDER AND WATER SOLUBLE FLUX.

EXCEPT WHERE SHOWN, AND TO THE GREATEST EXTENT POSSIBLE, ALL NEW 2" COPPER CHILLED WATER SUPPLY AND RETURN PIPING SHALL BE ROUTED OVERHEAD AT MINIMUM 10

FEET ABOVE FLOOR.

ALL CHILLED WATER SUPPLY AND RETURN PIPING AND FIXTURES , INCLUDING PUMPS AND 8" STEEL PIPING AND 8" STEEL MANIFOLDS SHALL BE WRAPPED WITH FIBERGLASS OR MINERAL WOOL INSULATION AND EXTERNAL FSK FACING. IN AREAS WHERE PIPING COULD BE STEPPED ON (I.E. ALONG MEZZANINE DECKS AND FLOORS), INSTALL METAL JAKETING.

ALL STEEL PIPING SHALL BE RATED FOR MINIMUM 150 PSI.

ALL PIPING SHALL BE SUPPORTED AS REQUIRED TO MEET APPLICABLE FEDERAL AND LOCAL CODES. WHEN SUPPORTING 8" STEEL PIPING, IF SUFFICIENT SPACE IS NOT AVAILABLE TO INSTALL STANCHIONS, PIPING MAY BE SUPPORTED VIA SUSPENSION FROM OVERHEAD MEZZANINE FRAMING PROVIDED SUPPORT APPARATUS IS RATED FOR THE APPLICABLE LOADS

APPLIED.

ALL PIPING SHALL BE INSTALLED AND SUPPORTED IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, INTERNATIONAL AND LOCAL CODES (CURRENT EDITIONS OF EACH). IN THE EVENT OF OVERLAPPING CODES, OR CONFLICTING REQUIREMENTS BETWEEN CODES, THE MOST STRINGENT CODE SHALL PREVAIL. CODES SHALL INCLUDE, BUT NOT BE LIMITED TO THE

FOLLOWING: UNIFORM PLUMBING CODE, UNIFORM MECHANICAL CODE.

ALL WELDING PERFORMED WITHIN BUILDING 378, EITHER FOR PIPE CONNECTIONS OR OTHER PURPOSES SHALL BE PERFORMED ONLY AFTER BURN PERMITS HAVE BEEN ACQUIRED FROM THE BASE FIRE MARSHAL. WELDS SHALL BE MADE IN ACCORDANCE WITH CURRENT EDITIONS OF THE AMERICAN WELDING SOCIETY (AWS) D1.1, THE UNIFORM PLUMBING CODE, UNIFORM MECHANICAL CODE, INTERNATIONAL BUILDING CODE, ASME BOILER AND PRESSURE VESSEL CODES.

WATER SUPPLY SHALL BE CONTINUED ALONG WALL ABOVE MEZZANINE IN CENTER BARREL HANGAR BAY EASTWARD AND CONNECTED BELOW WEST EXPANSION TANK ON WALL AS SHOWN IN WATER SUPPLY CONNECTION DETAIL, SHEET M-02.. THERE ARE TWO EXISTING EXPANSION TANKS ON THE WALL. CONNECT AS SHOWN BELOW WEST TANK.

CHILLED WATER BUFFER TANK WT-1 SHALL BE SECURED TO FLOOR AS RECOMMENDED BY TANK MANUFACTURER, AND AS TO CONFORM TO ALL LOCAL SEISMIC REQUIREMENTS

CONTRACTOR SHALL CONNECT TO CORRESPONDING PIPING PREVIOUSLY INSTALLED BY GOVERNMENT PER SHEET M-02.

GENERAL NOTES:

T

BUTTERFLY VALVE

BALL VALVE

CHECK VALVE

TEMPERATURE GAUGE AND

TRANSDUCER

LEGEND

FEMALE CAMLOCK HOSE COUPLING

X M-X M-X

DETAIL I.D.

SHOWN ON

REFERENCEED

ON

XX-X

WC = WATER CHILLER

WT = WATER BUFFER TANK

CP = CIRCULATION PUMP

RP = RECIRCULATION PUMP (CHEMICALS)

REFER TO EQUIPMENT SCHEDULES

CHILLED WATER RETURN

CHILLED WATER SUPPLYCWS

CWR

VIBRATION ISOLATION FITTING

VIBRATION ISOLATION FITTING

DIFFERENTIAL PRESSURE BYPASS

VALVE

The Chilled Water System Equipment shall operate according to the following control Sequence:

1. On-Off control of the individual water chillers shall be dependent on water temperature in the chilled water buffer tank WT-1. The water chillers shall be staged based on tank water temperature as follows:

a. WC-1 shall turn on when tank water temperature rises to 45 degrees Fahrenheit, and shall turn off when tank water temperature reaches 40 degrees Fahrenheit.

b. WC-2 shall turn on when tank water temperature rises to 49 degrees Fahrenheit, and shall turn off when tank water temperature reaches 45 degrees Fahrenheit.

c. WC-3 shall turn on when tank water temperature rises to 53 degrees Fahrenheit, and shall turn off when tank water temperature reaches 49 degrees Fahrenheit.

d. WC-4 shall turn on when tank water temperature reaches 57 degrees Fahrenheit, and shall turn off when tank water temperature reaches 53 degrees Fahrenheit.

2. Water Tank Temperature shall be determined for paragraph 1 requirements via a sensor located in the 8” diameter steel piping between the tank exit and the pump suction manifold.

3. Controls for water chiller on-off shall be adjustable or re-programmable to allow for adjustment of the on-off temperatures.

4. In order to equalize hours of operation between water chillers WC-1 through WC-4, the system controls for water chiller on-off shall allow for rotation of the various water chillers in the sequence shown above. In other words, in paragraphs 1.a through 1.d above, “WC-1”, “WC-2”, “WC-3”, and “WC-4” shall be capable of substituting for each other, to allow for the rotation of water chillers through the various water temperature ranges. The control system shall be capable of making such rotations/substitutions automatically, and without manual intervention to maintain equal operating hours between water chillers.

5. While water chillers WC-1 and WC-2 are existing and already have internal pumps for water circulation, water chillers WC-3 and WC-4 will be purchased new and without internal pumps.

The pumps for water circulation through WC-3 and WC-4 shall be external to WC-3 and WC-4, and shall be located on the shop floor as shown in the attached drawings (reference pump CP-1 for WC-3 and CP-2 for WC-4). Contractor shall determine, provide and install all necessary controls to facilitate pump operation for circulation pumps CP-1 and CP-2, and to coordinate pump operation with that for their respective water chillers. CP-1 and CP-2 shall operate automatically in coordination with WC-3 and WC-4 respectively.

6. Circulation pumps CP-3 through CP-10 shall circulate water flow directly from storage tank WT-1 to the various generator test stands as shown in the attached drawings. On-off control for circulation pumps CP-3 through CP-10 shall be manual, and shall be accomplished via electrical switches located near the respective test stands. Switches shall be activated by the operators of the generator test stands on an as-needed basis. Individual switches, as well as their locations and wiring shall be as shown in attached electrical drawings. Switches and wiring shall be purchased and installed by Contractor.

Contractor shall determine and provide all necessary equipment, electronics, and software to accomplish the above requirements.

SYSTEM CONTROLS AND SEQUENCING:

1. FOR SIMPLICITY, THE WORDS "THIS DRAWING" SHALL BE CONSTRUED TO INCLUDE ALL OF THE SHEETS

THAT COMPRISE IT (M-01 THROUGH M-06).

2. DUE TO DISTORTIONS FROM REPRODUCTION, THE SCALES SHOWN ON THIS DRAWING MAY BE INACCURATE, AND SHOULD NOT BE USED FOR INSTALLATION OR ESTIMATING PURPOSES.

3. WHILE INSTALLING THE PIPING AND EQUIPMENT SHOWN ON THIS DRAWING, VARIOUS ITEMS MAY BE ENCOUNTERED THAT PRESENT OBSTACLES TO INSTALLING EXACTLY WHERE SHOWN ON THIS DRAWING. THE INSTALLING ENTITY IS GRANTED AUTHORITY TO PROCEED AS NECESSARY, AT HIS/HER DISCRETION, TO ADJUST THE LOCATIONS AS REQUIRED TO WORK AROUND UNANTICIPATED OBSTACLES DISCOVERED AT THE JOB SITE.

HOWEVER, ALL CODES AND STANDARDS SHALL STILL BE ADHERED TO AND SATISFIED.

FOR ALL CONCERNED PARTIES:

INSTALLATION SEQUENCE:

1. THE WORK IDENTIFIED TO BE PERFORMED BY THE GOVERNMENT SHALL BE COMPLETED PRIOR TO THE START

OF ANY WORK PERFORMED BY CONTRACTOR.

BY CONTRACTOR