11/04/2025

MGR: ENGINEERING

FARGO

FAR-21003455-G001

ATCT

COVER SHEET

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SURVEILLANCE SVCS

AIR TRAFFIC SYSTEMS

ATO - PROGRAM MANAGEMENT ORG HEADQUARTERS

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HECTOR INTL AIRPORT

PROJECT ENGINEER

21003455

ND

FEDERAL AVIATION ADMINISTRATION

DEPARTMENT OF TRANSPORTATION

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SEPTEMBER 25, 2025

100% DESIGN DRAWINGS

AIR COOLED CHILLER REPLACEMENT

FARGO, NORTH DAKOTA

HECTOR INTERNATIONAL AIRPORT

FAA ATCT

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FAR-21003455-G002

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SHEET TITLE

FAR-21003455-M004

FAR-21003455-M003

FAR-21003455-M002

FAR-21003455-M001

MECHANICAL

FAR-21003455-G003

FAR-21003455-G002

FAR-21003455-G001

GENERAL

CHILLER PIPING LAYOUT

SCHEMATIC DETAILS

EQUIPMENT SCHEDULES

FIRST FLOOR PLAN AND GENERAL NOTES

CONSTRUCTION GENERAL NOTES

INDEX OF DRAWINGS

COVER SHEET

DRAWING INDEX

SITE MAP

FAR-21003455-G003

CONSTRUCTION GENERAL NOTES

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UL FIRE RATED SYSTEM SHALL UTILIZE WALL SLEEVES.

WITH UL LISTED FIRE RATED SYSTEM TO MEET OR EXCEED FIRE RATING OF AFFECTED CONSTRUCTION OR SYSTEM. WHERE APPLICABLE,

19. ANY CUTTING AND/OR PATCHING OF RATED WALLS, AND/OR DISTURBANCE OF RATED FIREPROOF CONSTRUCTION SHALL BE REPAIRED

SHALL BE REPAIRED OR REPLACED AT THEIR OWN EXPENSE.

DURING CONSTRUCTION WORK FOR THIS PROJECT. ANY DAMAGE CAUSED TO THE BUILDING OR EQUIPMENT BY THE CONTRACTOR

18. THE CONTRACTOR SHALL PROTECT ALL EXISTING BUILDING STRUCTURE, SURFACES, EQUIPMENT, AND FIXTURES FROM DAMAGE

COST TO THE GOVERNMENT.

TO COME TRUE AND LINE UP WITH EXISTING CONNECTED WORK. THE CONTRACTOR SHALL ACCOMMODATE SUCH WORK AT NO ADDITIONAL

AND/OR THE STRUCTURE, TAKE MEASUREMENTS IN THE FIELD, WORK OUT SPACE CONDITIONS AND MAKE NECESSARY ADJUSTMENTS

17. WHERE THERE IS EVIDENCE THAT PARTS OF THE WORK WILL INTERFERE WITH OTHER WORK (PIPING, EQUIPMENT, CONDUITS, ETC.)

AND WIRING. TESTING AND BALANCING (TAB) REPORTS FOR ALL EQUIPMENT UNDER THIS CONTRACT.

WHERE EXISTING HVAC SYSTEMS ARE TO BE REPLACED, THE CONTRACTOR MAY DISCONNECT AND REINSTALL EXISTING BAS CONTROLS

16. CONTRACTOR SHALL PROVIDE BUILDING AUTOMATION SYSTEM (BAS) CONTROL WIRING AS REQUIRED FOR NEWLY F&I EQUIPMENT.

OR NOT THEY ARE SPECIFICALLY CALLED FOR BY THE SPECIFICATIONS OR DRAWINGS.

PROPER INSTALLATION AND OPERATION OF ANY SYSTEM SHALL BE PROVIDED BY THE CONTRACTOR FOR SUCH SYSTEM WHETHER

15. MINOR MATERIALS, EQUIPMENT, ACCESSORIES AND/OR DEVICES REASONABLY INFERABLE AS NECESSARY FOR THE COMPLETE AND

AND OPERATING INSTALLATION.

HEREINAFTER SPECIFIED, COMPLETE WITH ALL NECESSARY FITTINGS, SUPPORTS, TRIM, PIPING, INSULATION AS REQUIRED FOR A COMPLETE

14. UNLESS EXPLICITLY STATED TO THE CONTRARY, THE CONTRACTOR SHALL FURNISH AND INSTALL EACH ITEM OF EQUIPMENT OR MATERIAL

AS REQUIRED TO MATCH EXISTING.

13. WHERE REPLACEMENT OF EQUIPMENT OR SYSTEMS EXPOSES OR DAMAGES STRUCTURE, PATCH, REPAIR, AND PAINT WALL/CEILING/FLOORS

OR SYSTEMS HAVE ACTUALLY ARRIVED AT THE PROJECT SITE AND ARE READY FOR INSTALLATION AND VERIFIED AS SUCH BY THE FAA COR.

12. EXISTING EQUIPMENT OR SYSTEMS SPECIFIED TO BE REPLACED SHALL NOT BE REMOVED FROM SERVICE UNTIL THE NEW EQUIPMENT

AND SAFETY DEVICES FOR ALL NEW EQUIPMENT AND MATERIALS BEING INSTALLED.

11. THE CONTRACTOR SHALL COMPLY WITH ALL SPECIFICATIONS FOR STANDARDS OF WORKMANSHIP REQUIRED, METHODS OF CONTROL, COST TO THE GOVERNMENT.

10. THE CONTRACTOR IS RESPONSIBLE FOR COORDINATING THE WORK OF ALL TRADES, MAKING ANY NECESSARY ADJUSTMENTS AT NO ADDITIONAL

THESE PLANS NEED TO BE DETAILED AND APPROVED WELL IN ADVANCE OF PROCEEDING WITH ANY OF THE WORK.

EQUIPMENT UNDER THIS CONTRACT IS KEY TO KEEPING THE FACILITY OPERATIONAL AND TO KEEPING THE NAS AND FLYING PUBLIC SAFE.

THIS FACILITY PLAYS IN KEEPING THE NATIONAL AIR SPACE (NAS) "THE FLYING PUBLIC" SAFE, THE FACILITY NEEDS TO REMAIN OPERATIONAL 24-7.

EQUIPMENT PHASING PLAN (SCHEDULED INSTRUCTIONS TO REMOVE EQUIPMENT IN PHASES, NOT ALL AT ONCE). DUE TO THE CRITICAL ROLE

9. PRIOR TO THE NOTICE TO PROCEED (NTP), THE CONTRACTOR SHALL PREPARE AND SUBMIT A PROJECT SCHEDULE INCLUDING A DETAILED

AS SPECIFIED OR SCHEDULED. SHOP DRAWING PLANS SHALL BE MINIMUM 1/4" SCALE.

8. SHOP DRAWINGS, PRODUCT DATA, SAMPLES, AND/OR SAFETY DATA SHEETS (SDS) SHALL BE SUBMITTED FOR ALL EQUIPMENT AND SYSTEMS

EQUIPMENT, MATERIALS OR BEFORE STARTING ANY RELATED WORK.

TO THE FAA CONTRACTING OFFICER (CO) OR CONTRACTING OFFICER'S REPRESENTATIVE (COR) FOR GUIDANCE BEFORE ORDERING ANY

7. THE CONTRACTOR SHALL SUBMIT SHOP DRAWINGS INCLUDING DETAILED SKETCHES FOR ANY DISCREPANCIES OR QUESTIONS OF INTENT

THE BEST CONDITIONS AND RESULTS SHALL BE DETERMINED AT THE SITE, SUBJECT TO FAA COR REVIEW AND APPROVAL.

6. LOCATION OF ITEMS NOT DEFINITELY FIXED BY DIMENSIONS ARE APPROXIMATE ONLY AND EXACT LOCATIONS NECESSARY TO SECURE

ALL TRADES PRIOR TO SUBMITTING SHOP DRAWINGS, FABRICATING OR PURCHASING EQUIPMENT, MATERIALS OR ASSEMBLIES.

ALL DIMENSIONS, SIZES, MATERIALS, TEMPERATURE AND PRESSURE RATINGS, AND COORDINATE BETWEEN

(DO NOT SCALE FOR LOCATIONS). THE CONTRACTOR SHALL CAREFULLY REVIEW ALL CONTRACT DOCUMENTS, FIELD VERIFY

5. THESE DRAWINGS ARE SCHEMATIC IN NATURE AND ARE NOT INTENDED TO SHOW "AS-BUILT" CONDITIONS OR LOCATIONS OF EQUIPMENT

EXTENT THAT IT'S IMMEDIATE USE IS QUESTIONABLE, OR THAT IT'S NORMAL LIFE EXPECTANCY IS CURTAILED.

AND REPLACEMENT IF, IN THE OPINION OF THE FAA COR, OR MANUFACTURER, THE EQUIPMENT HAS DETERIORATED OR BEEN DAMAGED TO THE

OTHERWISE REFURBISHED TO LIKE-NEW CONDITION AT THE DISCRETION OF THE FAA COR. EQUIPMENT AND MATERIAL IS SUBJECT TO REJECTION

OR RACKS, AND COVERED WITH TARPAULINS. EQUIPMENT AND MATERIAL, IF LEFT OUT IN THE OPEN AND DAMAGED, SHALL BE REPAINTED OR

IF STORED ON-SITE IN OPEN OR UNPROTECTED AREAS, ALL EQUIPMENT AND MATERIAL SHALL BE KEPT OFF THE GROUND BY MEANS OF PALLETS

4. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO STORE HIS MATERIALS IN A MANNER THAT WILL MAINTAIN AN ORDERLY CLEAN APPEARANCE.

BY FEDERAL CODES AND STANDARDS.

3. ALL WORK SHALL BE COMPLETED IN ACCORDANCE WITH APPLICABLE FEDERAL CODES AND STANDARDS. PROVIDE ALL TESTS REQUIRED

OF SALVAGED MATERIALS AND ANY OTHER ITEM DEEMED OF MUTUAL INTEREST TO COMPLETE THIS WORK.

HOURS, MATERIAL/EQUIPMENT STAGING, REFUSE DISPOSAL, SECURITY, INTERRUPTIONS TO BUILDING UTILITIES OR SERVICES, OWNERSHIP

2. THE CONTRACTOR SHALL COORDINATE AND MAKE ALL ARRANGEMENTS WITH THE FAA COR, INCLUDING, BUT NOT LIMITED TO; WORKING

OF ALL SYSTEMS AS SHOWN ON THE DRAWINGS AND HEREIN SPECIFIED.

SERVICES, MATERIALS AND EQUIPMENT AND PERFORMANCE OF ALL REQUIRED WORK FOR THE COMPLETE OPERATIONAL INSTALLATION

1. THE CONTRACTOR SHALL PERFORM ALL WORK UNDER THIS CONTRACT. WORK UNDER THIS CONTRACT SHALL INCLUDE ALL LABOR, CONSTRUCTION GENERAL NOTES:

26. VOLTAGE FOR ALL EQUIPMENT IS TO BE VERIFIED BY MECHANICAL CONTRACTOR.

25. FOR ADDITIONAL DETAIL, SEE EQUIPMENT SCHEDULES, SEE M002.

APPARATUS PROVIDED UNDER THIS CONTRACT.

CUT-SHEETS, WIRING DIAGRAMS, SDS'S AND MAINTENANCE AND OPERATION MANUALS OF ALL EQUIPMENT AND

USB FLASH DRIVE OF OPERATION AND MAINTENANCE MANUALS CONTAINING DATA COVERING EQUIPMENT

24. CONTRACTOR SHALL PROVIDE THE FAA WITH TWO (2) 3-RING BINDER SETS AND ONE (1) ELECTRONIC COPY ON

WAS PERFORMED. THE FINAL CLEANING IS SUBJECT TO FAA COR APPROVAL.

OF THE EXTERIOR SURFACE OF EQUIPMENT INSTALLED UNDER THIS CONTRACT AND IN THE AREAS WORK

23. AFTER COMPLETION OF THE PROJECT, THE CONTRACTOR SHALL PROVIDE A FINAL THOROUGH CLEANING

DATES WITH FAA COR AT LEAST TWO (2) WEEKS IN ADVANCE OF PROPOSED TRAINING.

FACILITATE REQUIRED TRAINING, SUBJECT TO FAA COR APPROVAL. CONTRACTOR SHALL SCHEDULE TRAINING

INSTALLED EQUIPMENT. THE CONTRACTOR SHALL ENLIST A COMPETENT MANUFACTURER'S REPRESENTATIVE TO

22. CONTRACTOR SHALL PROVIDE INSTRUCTION AND TRAINING IN THE OPERATION AND MAINTENANCE OF NEWLY

SUPPLY ALL LABOR, MATERIALS, INSTRUMENTS, AND MISCELLANEOUS EQUIPMENT REQUIRED FOR TESTS.

ADJUSTED, (AS REQUIRED) AND WITNESSED TO OPERATE SATISFACTORILY BY THE FAA COR. CONTRACTOR SHALL

SUBCONTRACTOR RESPONSIBLE FOR THE INSTALLATION AND/OR TEST. ALL NEW EQUIPMENT SHALL BE CLEANED,

21. FINAL INSPECTION AND TESTS SHALL BE MADE IN THE PRESENCE OF THE FAA COR, CONTRACTOR BY THE

AND LOCAL FAA APPROVAL AFTER EACH SHIFT.

PATHWAYS NEED TO BE FREE AND CLEAR OF PROJECT MATERIALS, WASTE, AND DEBRIS. SUBJECT TO FAA COR

ACTIVITIES ARE TAKING PLACE IN AN ACTIVE NATIONAL AIRSPACE (NAS) FACILITY. CONSTRUCTION AREAS AND

THE CONTRACTOR. COORDINATE DUMPSTER LOCATION AND WASTE REMOVAL WITH FAA COR. CONSTRUCTION

20. ALL PROJECT DEBRIS AND WASTE SHALL BE CLEARED AFTER EVERY WORK SHIFT AND PROPERLY DISPOSED OF BY

SCALE: 1/4" = 1'-0"

FIRST FLOOR PLAN

UH-3

UH-2

M004

M003

S

24X5

8X6

T

4"

FOR DETAIL

SEE FAR-21003455-M004

08/13/2025

AFAR-21003455-M001

FIRST FLOOR PLAN AND GENERAL NOTES

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HECTOR INTL AIRPORT ND

THIS DRAWING PRODUCED ON THE AGL REGION MICROSTATION SYSTEM

A 12/18/2025 FAR CHILLER REPLACEMENT 21003455 07/30/2025

THIS PROJECT COPY IS BASED ON DRAWING

FAR-GL-D-2106-M04, REVISION B, DATED 03/01/2012

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4' 0 4' 8'

SCALE: 1/4" = 1'-0"

MECH ROOM

ELEVATOR

EQUIPMENT

ROOM

MAINTENANCE

SHOP

ENGINE

GENERATOR

ROOM

ENTRY

CORRIDOR

CABLE

PIT ELEVATOR

ELEVATOR

LOBBY

EF-1

ENGINE

GENERATOR

T-1

CFM

CFM

UP

CFM

AHU-1

CFM

DF-1

1 1/4"

UH-1

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1. THE CHILLED WATER SYSTEM AT THE FARGO ATCT USES 55%

PROPYLENE GLYCOL SOLUTION. THIS DESIGN IS BASED ON

DOWTHERM HD PRODUCT.

2. CHILLED WATER PIPES ARE INSULATED WITH HARD PACK GLASS

INSULATION.

3. CONTRACTOR PROVIDED TEMPORARY HEATING AND/OR

COOLING EQUIPMENT TO MAINTAIN THE SUITABLE ENVIRONMENT

(72 TO 78 DEGREE F) FOR CONTINUING OPERATION OF THIS

FACILITY. CONTRACTOR COORDINATED WITH THE RESIDENT ENGINEER

SO THAT THE WORK WILL CAUSE LEAST AMOUNT OF INTERRUPTION

TO THE FACILITY EQUIPMENT AND PERSONNEL.

4. THE CHILLED WATER PIPES REPLACED IN THE MAIN

PROJECT WAS LIMITED TO THE BRANCH PIPES AND ASSOCIATED

VALVES FOR EACH AHU. THE NEW WORK CONNECTION POINTS

ARE SHOWN IN THE "COOLING COIL PIPING DETAILS" IN SHEET M004.

5. TESTED, ADJUSTED AND BALANCED THE WATER AND AIR SYSTEMS AFTER

THE COMPLETION OF ALL THE SYSTEMS.

6. VERIFY, FORM, FIT, AND FUNCTION OF NEW EQUIPMENT TO THE EXISTING

CONDITION.

GENERAL NOTES:

1. CLEAR DEBRIS FROM THE CONCRETE PAD AND LOCATE

THE NEW CHILLER (CH-1) ON THE EXISTING PAD. SUPPORT

THE NEW UNIT AT THE RECOMMENDED SUPPORT LOCATIONS

AS INSTRUCTED BY THE CHILLER MANUFACTURER REP.

2. FURNISH AND INSTALL CHILLED WATER PIPING TO THE

INDICATED NEW CONNECTION POINTS.

3. FURNISH AND INSTALL P-1 AND P-2.

FIRST FLOOR NOTES:

NOTE: REFER M002, M003 AND M004 FOR CONSTRUCTION DETAIL.

UH

S.A.

R.A.

O.A.

N.O.

N.C.

MCD

M.A.

H.W.

FC

EF

EDH

E.A.

DDC

CW

CHWS

CHWR

CC

BAS

AHU

UNIT HEATER

SUPPLY AIR

RETURN AIR

OUTSIDE AIR

NORMALLY OPENED

NORMALLY CLOSED

MOTORIZED CONTROL DAMPER

MIXED AIR

HOT DOMESTIC WATER

FAN COIL UNIT

EXHAUST FAN

ELECTRIC DUCT HEATER

EXHAUST AIR

DIRCT DIGITAL CONTROL

COLD DOMESTIC WATER

CHILLED WATER SUPPLY

CHILLED WATER RETURN

COOLING COIL

BUILDING AUTOMATION SYSTEM

AIR HANDLING UNITS

T-X

H-X

SYMBOLS:

ABBREVIATIONS:

HUMIDISTAT #X

THERMOSTAT / THERMOSTAT #X

NEW CONNECTION POINT

UNIT HEATER

MANUAL DAMPER

SWITCH

THERMOMETER

PRESSURE GAGE

ONLY CLOUDED

ITEMS APPLY TO

THIS CONTRACT

08/13/2025

AFAR-21003455-M003

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SCHEMATIC DETAILS

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HECTOR INTL AIRPORT ND

THIS DRAWING PRODUCED ON THE AGL REGION MICROSTATION SYSTEM

A 12/18/2025 FAR CHILLER REPLACEMENT 21003455 07/30/2025

THIS PROJECT COPY IS BASED ON DRAWING

FAR-GL-D-2106-M10, REVISION B, DATED 03/01/2012

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DEPARTMENT OF TRANSPORTATION

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CHWR

CHWS

NOT TO SCALE

CHILLER CHILLED WATER PIPING DETAILS

NOT TO SCALE

NEW WORK

EXISTING

NEW WORK

EXISTING

FLEXIBLE

CONNECTORS

STRAINER

CHWR

CHWS

GATE

VALVES

FLOW SWITCH

DRAIN

VALVE

AIR VENT

CHILLER

GATE

VALVES

3-WAY

MIXING

VALVE

AIR VENT

STRAINER

DRAIN

VALVE

BALANCING

VALVES

COOLIN

G

COI

L

NOT TO SCALE

STEAM HUMIDIFIER DETAILS

TO STEAM MANIFOLD

CW LINE

MAKE-UP

1/2"

TO DRAIN LINE

VALVE

SHUTOFF

DRAIN LINE

AIR GAP

1" MIN.

TO THE DRAIN

DRAINAGE TUBING

HOSE

NOTES:

1. DIRECT DRIVE FAN WITH GRAVITY DAMPER.

PROPELLER EXHAUST FAN SCHEMATIC

NOT TO SCALE

LOUVER EXHAUST

WITH BIRDSCREEN

WALL

OSHA APPROVED

PERSONNEL

GUARD BY FAN

MANUFACTURER

EXHAUST FAN

WALL MOUNT COLLAR BY

FAN MANUFACTURER

BACKDRAFT DAMPER BY

FAN MANUFACTURER

DUCT

NO SCALE

WALL OR FLOOR

EXPANSION CLEARANCE

FIRE DAMPER

1-1/2" MTG ANGLE FRAME

ATTACHED TO DUCT

ACCESS DOOR

INSTALL COLLAR

DAMPER INSTALLATIONNOTE:

MUST MEET UL & NFPA

REQUIREMENTS

1" FLANGE

& HEM

BOLT ON 4" CENTER

1" BAND IRON

ALTERNATE

POSITION

OF BOLT

WASHER

SHEET METAL AS

SPECIFIED FOR

DUCTWORK

FLEXIBLE CONNECTOR

NOT TO SCALE

FLANGED

CONNECTION

ON FAN

SIDE

1" POCKET

SLIP DUCTWORK

FLEXIBLE

MATERIAL

SPECIFIED

SHEET METAL AS

SPECIFIED FOR

DUCTWORK1" MIN. TO 3" MAX.

INSTALLED 6" NORMAL

W/ MATERIAL TAUT

EXISTING LOUVER

INDOOR

NO SCALE

OUTDOOR

DAMPER

BALANCED GRAVITY

4" DEEP COUNTER-

MOTION OF DAMPER

SPACE FOR FULL

PROVIDE AMPLE

AIR

AIRFLOW

FIRE DAMPER INSTALLATION

2" FOAM INSULATION

GALVANIZED SHEETMETAL

(FOR REDUCING

OPENING SIZE)

(FOR REDUCING

OPENING SIZE)

ACCESSMETAL DUCT

DOOR

SCHEDULE

40 PIPE

BRANCH OFF TO

OTHER AHUs

DIELECTRIC

UNIONS (2X)

EXISTING LOUVER

GALVANIZED SHEETMETAL

NO SCALE

(FOR REDUCING

2" FOAM INSULATION

OPENING SIZE)

METAL

DUCT

INDOOR

ACCESS

DOOR

OUTDOOR

AIR

(FOR REDUCING

OPENING SIZE)

BLANKET INSULATION

2" X 10" MINIMUM (INSULATION)

FASTERNERS MAXIMUM 8" O.C.

METAL COUNTERFLASHING

- FASTENERS 8" O.C.

SPECIFIED BASE FLASHING

BASE SHEET

WOOD CANT NAILED TO

NAILER AND CURB

INSULATION

RUBER MEMBRANE

STEEL DECK

FASTEN TO DECK WITH

MECHANICAL FASTENERS

STEEL ANGLE SUPPORT

OUTSIDE AIR DUCT DETAIL

EXHAUST HOOD CURB DETAIL

NO SCALE

11 12

M003

M003

M003

M003

M003

M003

M003

M003

M003

NOTE: NEW WORK SHALL USE

BE TYPE L COPPER WITH

AUTOMATIC

DUCT LINER

(ALL SIDES)

TO DRAIN

HUMIDIFIER

FROM

STEAM

MANIFOLD

GRAVITY DAMPER

(EXISTING)

COOLLING COIL PIPING DETAILS

ELASTOMERIC INSULATION

VALVE

GRATE

VALVE

DRAIN

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1. REMOVE EXISTING AND INSTALL NEW CHILLER CH-1, CHILLER WATER PUMPS P-1 AND P-2, EXPANSION TANK, AIR SEPARATORS AND CHEMICAL FEEDER.

2. ANCHOR CHILLERS AND PIPING TO MEET SEISMIC CODES AND SPECIFICATIONS.

3. DURING CHILLER REPLACEMENT, RENTAL CHILLER TO BE IN OPERATION ALL TIMES.

4. RECONFIGURE CHILLED WATER PIPING TO CONNECT TO NEW CHILLERS AND SUPPORT AS REQUIRED.

5. MODIFY ELECTRICAL CIRCUIT, CONDUIT, ETC BETWEEN EXISTING DISCONNECT/STARTES AND NEW CHILLER

EQUIPMENT. PROVIDE AND INSTALL CORRECT SIZE AND TYPE OF FUSES FOR NEW CHILLER. SIMILAR

MODIFICATION IS REQUIRED FOR CHILLER PUMPS.

6. REATTACH EXISTING LIGHTING PROTECTION AND GROUND WIRES TO NEW CHILLERS.

7. INSTALL STRAINERS, GAUGES, AND OTHER DEVICES AS REQUIRED OR RECOMMENDED BY THE

MANUFACTURER AND AS SHOWN ON THE CONSTRUCTION DRAWINGS. INSTALL TEMPERATURE SENSORS AND

OTHER NECESSARY INPUT AND OUTPUT DEVICES.

8. INTEGRATE NEW CHILLER CONTROLS INTO THE EXISTING BUILDING AUTOMATION SYSTEM.

9. HYDRONIC CHILLED WATER CIRCULATION SYSTEM ADJUSTMENT, ENGAGE A CERTIFIED TAB CONTRACTOR TO

MEASURE AND ADJUST CHILLED WATER FLOW FOR THIS SYSTEM TO MATCH THE EXISTING CONDITIONS AND

NEW CHILLER REQUI9REMENTS AFTER THE CHILLERS HAVE BEEN INSTALLED.

10. SUPPLY AND REPLACE NECESSARY GLYCOL/WATER SOLUTION TO BRING CHILLED WATER CIRCULATION

SYSTEM TO 50%.

11. INSTALL NEW INSULATION ON NEW CHILLED WATER PIPING AND REPLACE INSULATION IN THE DAMAGED

AREA OF THE CHILLED WATER SYSTEM.

12. CHILLED WATER PUMPS OPERATE IN LEAD/STANDBY CONFIGURATION, WHILE ONE PUMP OPERATES, THE

SECOND PUMP STAYS IN STANDBY CONFIGURATION. INTEGRATE CHILLER PUMPS INTO THE EXISTING

BUILDING AUTOMATION SYSTEM.

13. THE CHILLED WATER SYSTEM SHALL BE 55% ETHYLENE GLYCOL SOLUTION. THE GLYCOL FEEDER SHALL

OPERATE ITS INTEGRAL PUMP TO SUPPLY SOLUTION TO THE SYSTEM AS CONTROLLED BY ITS INTEGRAL

PRESSURE SWITCH. INTEGRATE GLYCOL FEEDER INTO THE EXISTING BUILDING AUTOMATION SYSTEM FOR

CONTINUOUS MONITORING.

CONSTRUCTION NOTES:

FIRST MEMBRANE: SHALL HAVE NON-WOVEN POLYESTER REINFORCEMENT AND THEROFUSIBLE ELASTOMETRIC ASPHALT.

1. COAT THE VERTICAL SURFACE RECEIVING THE BASE PLY FLASHING. PRIMER BE TACKY BEFORE APPLICATION OF THE

BASE SHEET FLASHING.

2. LAY BASE PLY FLASHING IN STRIPS 3 FEET WIDE TO THE VERTICAL SURFACE EXTENDING ONTO THE FLAT SURFACE

OF THE ROOF A MINIMUM OF 4 INCHES. SIDE LAPS SHALL BE 3 INCHES AND SHALL BE STAGGERED A MINIMUM OF

WITH THE LAPS OF THE BASE PLY.

3. TORCH WELD BASE PLY FLASHING DIRECTLY ON ITS SUPPORT FROM BOTTOM FOLLOWED BY THE TORCHING OF THE

ROOF TIE-IN.

4. CHECK ALL LAP SEAMS ON THE FLASHING BY RUNNING A HEATED TROWEL THE EDGE OF THE SEAMS. THOROUGHLY

SEAL ALL VOIDS IN THE CORNERS.

CAP MEMBRANE: SHALL HAVE NON-WOVEN POLYESTER REINFORCEMENT AND THEROFUSIBLE ELASTOMETRIC ASPHALT.

1. LAY TOP PLY FLASHING IN STRIPS 3 FEET WIDE. SIDE LAPS SHALL BE 3. IT SHALL BE STAGGERED A MIN OF 4 INCHES

FROM TOP PLY LAPS.

2. LAYOUT A STRAIGHT LINE ON THE TOP PLY SURFACE, PARALLEL TO THE ROOF 6 INCHES INSIDE THE ROOF FROM THE

BASE OF THE CANT STRIP OR RIGHT BE FLASHED.

3. USE TORCH AND HEATED FLAT TROWEL, EMBED THE SURFACE GRANULES IN AND SOFT BITUMEN FROM THE CHALK

LINE TO THE EDGE OF THE FIELD CANT PLY, AND TO THE TOP OF THE CANT OR RIGHT ANGLE.

4. EXTEND CAP MEMBRANE FLASHING PLY DOWN THE VERTICAL SURFACE ONTO AT THE ROOF 6 INCHES MINIMUM, SEALING OVER THE AREA EMBEDDED GRAN FIELD CAP MEMBRANE PLY. TORCH WELD TOP PLY FLASHING IN

ACCORDANCE TO RECOMMENDATION BY MFGR, DIRECTLY ON ITS BASE PLY, PROCEEDING FROM TO TOP FOLLOWED

BY THE TORCHING OF THE ROOF TIE-IN. FIRMLY PRESS INTO POSITION USING A DAMP SPONGE.

5. THOROUGHLY SEAL ALL VOIDS IN THE CORNERS AND SEAMS.

6. INSPECT FOR A SMOOTH SURFACE AND FREE OF AIR POCKETS AND WRINKLES.

ONLY CLOUDED

ITEMS APPLY TO

THIS CONTRACT