REMOVE EXISTING TO THIS POINT

CONNECT TO EXISTING AT THIS POINT

MECHANICAL LEGENDSYMBOL DESCRIPTIONABBREVIATION

RECTANGULAR DUCT10x8

10"ø

R

D

ROUND DUCT

DUCT RISING UP

DUCT DROPPING DOWN

FLEXIBLE CONNECTION DUCTWORK

DUCTWORK WITH SOUND LINING

TURNING VANES

SIDE WALL REGISTER

SUPPLY AIR DUCT; UP, DOWNSA

RA RETURN AIR DUCT; UP, DOWN

EA EXHAUST AIR DUCT; UP, DOWN

BDD BACK DRAFT DAMPER - GRAVITY

MOD MOTOR OPERATED DAMPER

VD VOLUME DAMPER

SD SMOKE DETECTOR - DUCT MOUNTED

SMOKE DAMPER

FIRE DAMPERFD

SUPPLY AIR DIFFUSER

RETURN AIR REGISTER OR GRILLE

EXHAUST AIR REGISTER OR GRILLE

DUCT MOUNTED TEMPERATURE SENSOR

DUCT MOUNTED PRESSURE SENSOR

DUCT MOUNTED HUMIDITY SENSOR

ACCESS PANEL, ACCESS DOORA.P., AD

TEMPERATURE SENSOR

HUMIDITY SENSOR

T

H

SP SPACE PRESSURE SENSOR

T TEMPERATURE SENSOR - UNIT NO. CONTROLLED#

#H HUMIDITY SENSOR - UNIT NO. CONTROLLED

VARIABLE AIR VOLUME BOX, WITH HEATVAV, CAV

DIAMETERDIA.

NUMBERNO.#

CFM CUBIC FEET PER MINUTE

VAV BOX REFERENCE SYMBOLXX

DRAWING NOTE REFERENCE SYMBOL

A150 CFM

SIZEAIR DEVICE REFERENCE SYMBOL

AX

SECTION MARKERSECTION LETTERSHEET WHERE SECTION IS SHOWN

ABBREVIATION DESCRIPTIONADJ. ADJUSTABLEAFF ABOVE FINISHED FLOOR

BASAHU

BUILDING AUTOMATION SYSTEMAIR HANDLING UNIT

APD AIR PRESSURE DROP

CFH CUBIC FEET PER HOURCUH CABINET UNIT HEATER

EA EXHAUST AIRDN.DB

DOWNDRY BULB

ESP EXTERNAL STATIC PRESSUREEXH. EXHAUST

EX. EXISTINGEWTEAT

ENTERING WATER TEMPERATUREENTERING AIR TEMPERATURE

FFE FINISHED FLOOR ELEVATION

ET EXPANSION TANK

GPH GALLONS PER HOURGPM GALLONS PER MINUTEHP HORSE POWERLAT LEAVING AIR TEMPERATURELWT LEAVING WATER TEMPERATURE

MAX. MAXIMUMMIN. MINIMUMNO NORMALLY OPENED

OA OUTSIDE AIRNTSNICNC

NOT TO SCALENOT IN CONTRACTNORMALLY CLOSED

PSIGRA

PDPOUNDS PER SQUARE INCH GAUGERETURN AIR

PUMP DISCHARGE

MBH ONE THOUSAND BTU PER HOUR

SA SUPPLY AIRTYP. TYPICAL

VFDV/ /HZ

VARIABLE FREQUENCY DRIVEVOLTS/PHASE/HERTZ

RX. REMOVE EXISTING

S.L.D.

SDa

CONSTANT AIR VOLUME BOX, WITH HEAT

ELECTRIC HEAT TRACE

XX REVISION REFERENCE SYMBOL

COMBINATION FIRE/SMOKE DAMPER

FCU FAN COIL UNIT

RTU ROOF TOP AIR HANDLING UNIT

WB WET BULB

XX

UNIT HEATERUH

MECHANICAL LEGEND

FSD

∅

∅

GENERAL MECHANICAL PROJECT NOTES1. ALL TEMPORARY UTILITY OUTAGES OF ANY TYPE SHALL BE COORDINATED WITH THE USER. PROVIDE TWO

WEEKS ADVANCE NOTIFICATION PRIOR TO PERFORMING ANY TEMPORARY OUTAGES.2. ALL DUCTWORK SIZES SHOWN ARE INSIDE CLEAR DIMENSIONS.3. PROVIDE ACCESS DOORS (SIZE AS SPECIFIED) IN DUCTWORK FOR EVERY FIRE DAMPER, FIRE/SMOKE DAMPER,

ETC. WHETHER SHOWN OR NOT. COORDINATE ACCESS TO VOLUME DAMPERS.4. COORDINATE THE LOCATION OF ALL AIR DEVICES WITH LIGHT FIXTURES AND THE ARCHITECT'S REFLECTED

CEILING PLANS, AND DOCUMENTS.5. COORDINATE DUCT ROUTING WITH APPROVED TRUSS/STEEL SHOP DRAWINGS.6. COORDINATE MOTORS AND OTHER ELECTRICAL EQUIPMENT FURNISHED UNDER MECHANICAL DIVISIONS

WITH ELECTRICAL DIVISION. PROVIDE EQUIPMENT COORDINATION TABLE AS A SHOP DRAWING FORREVIEW. TABLE SHALL INCLUDE BUT NOT BE LIMITED TO THE FOLLOWING INFORMATION:

a. EQUIPMENT POWER REQUIREMENTS INCLUDING AMPS AND VOLTAGES.b. DISCONNECTING MEANS AND OVER CURRENT PROTECTION REQUIREMENTS.c. CONTROL REQUIREMENTS.

7. COORDINATE THE INSTALLATION OF LIGHTING FIXTURES WITH PIPING, DUCTWORK, AIR DEVICES,SPRINKLERS, AND EQUIPMENT BEING INSTALLED IN THE FACILITY SUCH THAT PIPING, DUCTWORK, AIRDEVICES, AND EQUIPMENT DO NOT BLOCK OR IMPEDE LIGHTING.

8. INSTALL DUCTWORK SO THAT VOLUME DAMPERS, V.V.T. / VAV BOX CONTROL PANELS, FANS, DUCT COILS,ETC., ARE ACCESSIBLE. PROVIDE ACCESS PANELS PER SPECIFICATION REQUIREMENTS.

9. LOCATE ALL EQUIPMENT WHICH MUST BE SERVICED, OPERATED, AND MAINTAINED IN A FULLY ACCESSIBLEPOSITION. EQUIPMENT SHALL INCLUDE, BUT NOT BE LIMITED TO VALVES, TRAPS, MOTORS, CONTROLLERS,DRAIN POINTS, ETC. IF REQUIRED FOR ACCESSIBILITY, FURNISH ACCESS DOORS FOR THIS PURPOSE.COORDINATE LOCATION OF ACCESS DOORS WITH ARCHITECT. MINOR DEVIATIONS FROM DRAWINGS MAY BEMADE TO ALLOW FOR BETTER ACCESSIBILITY.

10. COORDINATE MOUNTING HEIGHTS AND LOCATIONS OF THERMOSTATS AND HUMIDISTATS SERVINGEQUIPMENT WITH THE OWNER(S) AND/OR ARCHITECT.

11. FIRE STOP ALL PIPING AND DUCT PENETRATIONS THRU FIRE WALLS, PARTITIONS, AND FLOORS. PROVIDELISTED FIRE DAMPERS IN ALL DUCTS THAT PASS THROUGH FIRE BARRIERS AND PARTITIONS. REFER TOARCHITECTURAL DRAWINGS FOR FIRE RATED WALL, FLOOR, PARTITION AND BARRIER LOCATIONS.

12. ALL FIRE DAMPERS SHALL BEAR THE UNDERWRITERS LABORATORIES LABEL AND SHALL BE INSTALLED SOTHEY ARE FULLY ACCESSIBLE.

13. REPLACE FILTERS SERVING AIR HANDLING UNIT EQUIPMENT PRIOR TO FINAL BALANCING OF AIRDISTRIBUTION SYSTEMS.

14. PREPARE COORDINATION DRAWINGS FOR ALL INTERIOR BUILDING SYSTEMS. DRAWINGS SHALL BE ¼” = 1” -0” SCALE. SHOW THE RELATIONSHIP OF COMPONENTS SHOWN ON SEPARATE SHOP DRAWINGS. INDICATEREQUIRED INSTALLATION SEQUENCES. REFER TO SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS.

15. PROVIDE FLEXIBLE DUCT CONNECTIONS AT ALL DUCTED ROOFTOP TOP UNITS, AIR HANDLING UNITS, FANCOIL UNITS, AND EXHAUST FAN INLET AND OUTLET CONNECTIONS. REFER TO SPECIFICATIONS FORADDITIONAL REQUIREMENTS.

16. PROVIDE WEATHER TIGHT WALL AND ROOF DUCT AND PIPING PENETRATIONS. ALL SEALING MATERIALS TOBE APPROVED BY ARCHITECT.

17. ROUTE DOMESTIC WATER PIPING, SPRINKLER PIPING, HVAC PIPING, GAS PIPING, ETC., IN PIPE CHASES, INFURRED OUT WALLS AND ABOVE CEILINGS, NO PIPING SHALL BE EXPOSED UNLESS APPROVED BY THEARCHITECT OR OWNER(S).

18. PROVIDE A BALANCING DAMPER ON ALL BRANCH DUCTS SERVING SUPPLY AIR DEVICES AND RETURN AIRDEVICES WHETHER SHOWN ON PLANS OR NOT.

19. EXISTING CONDITIONS (DUCTWORK, PIPING, EQUIPMENT, AND MATERIAL(S) INDICATED ON THE CONTRACTDOCUMENTS ARE NOT WARRANTED TO REPRESENT ALL EXISTING AS-BUILT CONDITIONS. FIELD VERIFYEXACT LOCATIONS OF ALL DUCTWORK, PIPING, EQUIPMENT, AND MATERIALS IN THE FIELD PRIOR TOCOMMENCING WITH NEW AND DEMOLITION WORK. EXISTING DUCT, PIPE, AND EQUIPMENT SIZES ARE NOTWARRANTED TO BE COMPLETELY CORRECT. FIELD VERIFY ALL EXISTING CONDITIONS PRIOR TO ORDERINGMATERIALS AND INSTALLING NEW WORK.

20. THE DRAWINGS ARE DIAGRAMMATIC AND DO NOT INDICATE EVERY COMPONENT AND/OR ACCESSORYREQUIRED FOR A COMPLETE INSTALLATION. PROVIDE NECESSARY AND REQUIRED COMPONENTS ANDACCESSORIES TO ENSURE THAT THE ENTIRE SYSTEM IS FUNCTIONAL AND IN COMPLIANCE WITH APPLICABLECODES, ACCEPTED INDUSTRY STANDARDS, AND MANUFACTURER'S INSTALLATIONREQUIREMENTS/RECOMMENDATIONS UPON COMPLETION OF WORK.

21. ALL DUCTWORK AND PIPING SHALL RUN AS HIGH AS POSSIBLE AND ABOVE FINISHED CEILINGS UNLESSOTHERWISE NOTED.

22. INSTALL VALVES AND COIL ASSEMBLIES IN ACCESSIBLE LOCATIONS. PROVIDE ACCESS PANELS PERSPECIFICATIONS.

23. DO NOT RELEASE ANY CFC OR HCFC BASED REFRIGERANT INTO THE ATMOSPHERE DURING INSTALLATION,START-UP, OR SERVICING OF NEW OR EXISTING HVAC EQUIPMENT EITHER DIRECTLY OR INDIRECTLY.UTILIZE AN APPROPRIATE REFRIGERANT PURIFICATION/RECLAMATION SYSTEM THAT IS CAPABLE OFSEPARATION AND REMOVAL OF OIL AND RESIDUAL MOISTURE, AND DOT-APPROVED CONTAINMENT OFRECOVERED REFRIGERANT.

24. ALL REFRIGERANT RELIEF DEVICES OR FUSIBLE PLUGS ON ALL SYSTEMS HAVING A REFRIGERANT CHARGE OF100 LBS. OR GREATER SHALL DISCHARGE TO THE OUTSIDE OF THE BUILDING IN ACCORDANCE WITHAPPLICABLE CODES. REFER TO SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS.

25. ALL REFRIGERANT PIPING SHALL BE SIZED AND SUPPORTED/INSTALLED IN ACCORDANCE WITH APPLICABLECODES. REFER TO SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS.

26. TEMPORARILY REMOVE EXISTING LAY-IN TILE CEILING SYSTEMS INCLUDING ALL GUY WIRE SUPPORTS ANDASSOCIATED SUSPENSION SYSTEMS WHERE REQUIRED TO COMPLETE WORK. LAY-IN TILE CEILING SYSTEMSSHALL THEN BE RE-INSTALLED AFTER NEW/DEMOLITION WORK. THE COST OF REPLACING/REPAIRING ANYDAMAGE TO THE EXISTING LAY-IN TILE CEILING SYSTEM SHALL BE INCURRED BY THE CONTRACTOR.

27. CAREFULLY REMOVE PLASTER TYPE CEILINGS AS REQUIRED TO FACILITATE THE INSTALLATION/REMOVAL OFALL EXISTING/NEW DUCTWORK AND ALL EXISTING/NEW PIPING SYSTEMS AND ASSOCIATED APPURTENANCES.NEW PLASTER TYPE CEILINGS SHALL BE INSTALLED TO REPLACE EXISTING REMOVED PORTIONS WHEREINDICATED AND REQUIRED.

28. UNLESS OTHERWISE NOTED ON THE CONTRACT DOCUMENTS, STATIC PRESSURE SENSORS SERVING: AIRHANDLING EQUIPMENT, EXHAUST FANS OR RETURN FANS SHALL BE LOCATED AS FOLLOWS:

a. AIR HANDLING EQUIPMENT- LOCATE 2/3 DOWNSTREAM FROM THE DISCHARGE OF THE SUPPLY FAN.b. EXHAUST / RETURN FANS- LOCATE SENSORS ON THE EXHAUST / RETURN DUCTWORK - 2/3 FROM THE

INLETS OF EXHAUST / RETURN FANS.

CONTRACTOR COMMISSIONING

APPLICABLE CODESYEAR CODE

2015 VIRGINIA EXISTING BUILDING CODE

2015 VIRGINIA PLUMBING CODE

2015 VIRGINIA MECHANICAL CODE

2015 VIRGINIA ENERGY CONSERVATION CODE

2015 INTERNATIONAL FIRE CODE

2015 VIRGINIA FUEL GAS CODE

2015 VIRGINIA STATEWIDE FIRE PREVENTION CODE

2018 ASHRAE 62.1

BDD

SUBSTANTIAL COMPLETION1. MECHANICAL AND ELECTRICAL SYSTEMS ARE NOT SUBSTANTIALLY COMPLETE UNTIL ALL

SYSTEMS ARE STARTED, TESTED, BALANCED, AND O&M'S ARE RECEIVED BY THE OWNER.

2. THESE ITEMS NOTED ABOVE MUST BE COMPLETE IN TIME FOR THE SYSTEMSDEMONSTRATIONS TO OWNER WITH ALL O&M'S MANUALS IN HAND AT TIME OFDEMONSTRATION.

3. PROVIDE SYSTEM DEMONSTRATION AND TRAINING FOR OWNER PERSONNEL FOR EACHSYSTEM. PROVIDE 8 HOURS OF SYSTEM DEMONSTRATION AND 8 HOURS OF OPERATIONSTRAINING FOR EACH SYSTEM.

4. PUNCHLIST ITEMS SHALL BE COMPLETED PRIOR TO SUBSTANTIAL COMPLETION.

5. ON SEASON COMMISSIONING SHALL BE COMPLETED PRIOR TO SUBSTANTIAL COMPLETION.

6. START OF ALL WARRANTIES TO BEGIN ON DATE OF SUBSTANTIAL COMPLETION.

BAS CONNECTION TO ACPS CENTRAL SYSTEM1. CONTRACTOR SHALL PROVIDE CONNECTION BETWEEN BUILDING AND ACPS CENTRAL BAS SYSTEM.

2. ALL POINTS SEEN THROUGH THE BUILDING AUTOMATION SYSTEM SHALL BE VISIBLE AND ADJUSTABLE THROUGHTHE ACPS CENTRAL BAS SYSTEM.

1. CONTRACTOR COMMISSIONING

a. PROVIDE ALL COMMISSIONING REQUIREMENTS OF HVAC SYSTEMS IN ACCORDANCE WITHTHE INTERNATIONAL ENERGY CODE 2015, SECTION 408.

b. SUBMIT COMMISSIONING AUTHORITY (CxA) QUALIFICATIONS FOR REVIEW PRIOR TO THESTART OF ANY WORK. CxA SHALL BE CERTIFIED BY THE BUILDING COMMISIONINGASSOCIATION (BCxA), THE ASSOCIATED COMMISSIONING GROUP (ACG), OR THE NATIONALENVIRONMENTAL BALANCING BUREAU (NEBB).

c. COMMISSIONING REQUIREMENTS SHALL INCLUDE BUT NOT BE LIMITED TO PREPARATIONOF THE COMMISSIONING PLAN, TEST AND BALANCING, FUNCTIONAL PERFORMANCETESTING, COMMISSIONING REPORT, AND OPERATIONAL/MAINTENANCE DOCUMENTATION.

d. COPIES OF ALL DOCUMENTATION SHALL BE PROVIDED TO THE OWNER, ARCHITECT, ANDCODE OFFICIAL.

M

SD

SD

SD

T

P

H

MECHANICAL LEGENDSYMBOL ABBREVIATION DESCRIPTION

CW COLD WATERHW HOT WATER (110°F OR 140°F)

HWR HOT WATER RECIRCULATING (110°F OR 140°F)CHS CHILLED WATER SUPPLYCHR CHILLED WATER RETURN

CHSCHRCD CONDENSATE DRAIN (ABOVE FLOOR)

CD-UG CONDENSATE DRAIN (UNDERGROUND)HSHR

HEATING WATER SUPPLYHEATING WATER RETURNHR

HS

CDCD

VENTURI STYLE FLOWMETER WITH PRESSURE/TEMPERATURE PORTS

PRESSURE AND TEMPERATURE PLUG

SOLENOID VALVE

PRESSURE TRANSMITTER

MANUAL AIR VENT

FLOW METER FITTING - VENTURI

FLOW METER FITTING - PITOT TUBE

AUTOMATIC AIR VENT

THERMAL WELL

STRAINER (Y OR BASKET) W/ HOSE END

PRESSURE GAUGE W/ NEEDLE VALVE

BACKFLOW PREVENTOR W/ FUNNEL

PRESSURE GAUGE W/ NEEDLE VALVE & SYPHON

THERMOMETER

DRAIN VALVE

RELIEF VALVE (TYPE AS NOTED)

PRESSURE REDUCING (REGULATING) VALVETWO-WAY CONTROL VALVE (ATC)THREE-WAY CONTROL VALVE (ATC)BUTTERFLY VALVEOPEN SITE DRAIN - FLOOR DRAIN W/ FUNNELROOF DRAINFLOOR SINKFLOOR DRAIN

IN-LINE CIRCULATING PUMP

DRIP LEG

SHOCK ABSORBER

TEMPERATURE & PRESSURE RELIEF VALVE

GAS COCK

OUTSIDE STEM & YOKE VALVE

BACK WATER VALVEPIPE REDUCER - CONCENTRIC

DOUBLE CHECK BACKFLOW PREVENTOR

DIRECTION OF PIPE PITCH (DOWN)COMBINATION BALANCING & SHUT-OFF VALVEPLUG VALVE

CHECK VALVE

GATE VALVEBALL VALVEVENT THRU ROOFFLOW SWITCHPIPE ANCHORPIPE GUIDEUNIONCAPPED PIPECAPPED OUTLET

P/T

S

PT

A.A.V.

V.T.

P.T.

MAV

FMF - V.T.

FMF - P.T.

AAV

BFP

RV

PRV

R.DR.OSD

FSF.DR.

AGC

CP

DP

SA

OS & Y

T & P

BWV

VTR

TOP PIPE CONNECTIONBOTTOM PIPE CONNECTIONSIDE PIPE CONNECTIONRISE OR DROP IN PIPE

ELBOW DOWN OR DROPELBOW UP OR RISEPIPE CONTINUESFLOW IN DIRECTION OF ARROW

DP, DNUP

FLEXIBLE CONNECTION - PIPINGFC

EX. EXISTINGRX. REMOVE EXISTING

F.S.

ACVACV

MULTI-PURPOSE VALVE

(REDUCED PRESSURE PRINCIPAL TYPE)

ATC FLOW SWITCH

TEMPERATURE SENSOR WITH IMMERSION WELLTS

TURBINE FLOW METERM

DIFFERENTIAL PRESSURE SENSORDP SENSOR

DIFFERENTIAL PRESSURE SWITCHDP SWITCH

GENERAL DEMOLITION PROJECT NOTES1. NOTIFY THE OWNER, IN WRITING, AT LEAST FOURTEEN (14) DAYS IN ADVANCE OF ALL REQUIRED

SHUTDOWNS OF WATER, SEWER, FIRE PROTECTION, GAS, ELECTRICAL SERVICE, OR OTHER UTILITIES.UPON WRITTEN RECEIPT OF APPROVAL FROM OWNER, SHUTDOWNS SHALL BE PERFORMED BETWEEN THEHOURS OF 8AM AND 5PM, OR AS DIRECTED OTHERWISE BY THE OWNER AT NO ADDITIONAL CONTRACTCOST. AT THE END OF EACH WORK DAY, SHUT DOWN SERVICES SHALL BE RESTORED SO THAT NORMAL USEOF UTILITIES CAN CONTINUE.

2. WHEN WORKING IN AND AROUND THE EXISTING BUILDING, CARE SHALL BE EXERCISED WITH REGARDS TOPROTECTION OF EXISTING STRUCTURE AND MECHANICAL AND ELECTRICAL SERVICES WHICH SHALLREMAIN.

3. REPAIR, REPLACE, OR RESTORE TO THE SATISFACTION OF THE ARCHITECT, ALL EXISTING WORK DAMAGEDIN THE PERFORMANCE OF THE DEMOLITION AND/OR NEW WORK.

4. EXISTING CONDITIONS (DUCTWORK, PIPING, EQUIPMENT, AND MATERIAL(S) INDICATED ON THE CONTRACTDOCUMENTS ARE NOT WARRANTED TO REPRESENT ALL EXISTING AS-BUILT CONDITIONS. FIELD VERIFYEXACT LOCATIONS OF ALL DUCTWORK, PIPING, EQUIPMENT, AND MATERIALS IN THE FIELD PRIOR TOCOMMENCING WITH NEW AND DEMOLITION WORK. EXISTING DUCT, PIPE, AND EQUIPMENT SIZES ARE NOTWARRANTED TO BE COMPLETELY CORRECT. FIELD VERIFY ALL EXISTING CONDITIONS PRIOR TO ORDERINGMATERIALS AND INSTALLING NEW WORK.

5. EXISTING MECHANICAL AND ELECTRICAL WORK INDICATED TO BE REMOVED (PIPES, VALVES, DUCTS, ETC.),SHALL BE REMOVED TO A POINT BELOW THE FINISHED FLOORS OR BEHIND FINISHED WALLS AND CAPPED.TERMINATION POINTS SHALL BE FAR ENOUGH BEHIND FINISHED SURFACES TO ALLOW FOR THEINSTALLATION OF THE NORMAL THICKNESS OF FINISHED MATERIAL.

6. EXISTING PIPING NO LONGER REQUIRED TO REMAIN IN SERVICE SHALL BE DISCONNECTED AND REMOVEDBACK TO EXISTING ASSOCIATED SERVICE MAINS UNLESS OTHERWISE INDICATED OR NOTED ON THECONTRACT DRAWINGS. REMOVED EXISTING PIPE HANGERS, PIPE INSULATION, SUPPORTS, VALVES, ETC.EXISTING PIPING INDICATED OR REQUIRED TO REMAIN IN SERVICE OR IN PLACE SHALL BE CAPPED,PLUGGED OR OTHERWISE SEALED. NO EXISTING PIPING SHALL BE LEFT OPEN ENDED.

7. EXISTING DUCTWORK INDICATED TO BE DISCONNECTED AND REMOVED SHALL INCLUDE RELOCATED AIRDEVICES, DUCT INSULATION, HANGERS, SUPPORTS, ETC. DUCTWORK SHALL BE CAPPED WITH SIMILARGAGE SHEET METAL. SECURE CAP(S) WITH SHEET METAL SCREWS AND SEAL WITH DUCT SEALER, NOEXISTING DUCTWORK SHALL BE LEFT UNCAPPED. IF CAPPING INSULATED DUCTS, CAP SHALL BE SIMILARLYINSULATED TO MATCH EXISTING INSULATION MATERIALS AND THICKNESS.

8. PATCH TO MATCH ALL NEW AND EXISTING OPENINGS IN WALLS, CEILINGS, AND FLOOR SURFACES DAMAGEDOR CREATED BY DEMOLITION WORK. PATCHING SHALL MATCH EXISTING ADJACENT SURFACES AS TOTHICKNESS, TEXTURES, MATERIALS, AND COLOR. ALL PATCHING SHALL BE PERFORMED TO THESATISFACTION OF THE ARCHITECT AND AT NO ADDITIONAL CONTRACT COST.

9. ALL DEMOLISHED EQUIPMENT SHALL BE OFFERED TO THE OWNER PRIOR TO DISPOSAL. EQUIPMENTRETAINED BY THE OWNER SHALL BE STORED WHERE DIRECTED BY THE OWNER. ANY EQUIPMENT THEOWNER DOES NOT WISH TO RETAIN SHALL BE DISPOSED OF, OFF SITE, BY THE CONTRACTOR.

10. ALL ABANDONED DUCTWORK, PLUMBING PIPING, MECHANICAL SYSTEMS PIPING, AND ATC CONTROLWIRING LOCATED IN PLENUM CEILING SPACES SHALL BE REMOVED.

MECHANICAL DRAWING LISTM001 COVERSHEET

M002 COMCHECK

M101 DEMOLTION - FIRST FLOOR - MECHANICAL

M102 DEMOLITION - PART PLANS - MECHANICAL

M103 DEMOLITION - PENTHOUSE - MECHANICAL

M104 DEMOLITION - ROOF PLAN - MECHANICAL

M201 NEW WORK - FIRST FLOOR - MECHANICAL

M202 NEW WORK - PART PLANS - MECHANICAL

M203 NEW WORK - PENTHOUSE- MECHANICAL

M204 NEW WORK - ROOF PLAN - MECHANICAL

M601 CONTROLS - MECHANICAL

M602 CONTROLS - MECHANICAL

M701 DETAILS - MECHANICAL

M702 DETAILS - MECHANICAL

M703 DETAILS - MECHANICAL

M801 SCHEDULES - MECHANICAL

BALANCING AND CONTROLS1. WIPE DOWN AND CLEAN ALL DIFFUSERS AND GRILLES IN THE BUILDING.

2. BUILDING RE-BALANCE. BALANCE BUILDING TO ORIGINAL DESIGN CONDITIONS. DRAWINGSOF EXISTING BUILDING PROVIDED FOR REFERENCE.

3. REPLACE ALL CONTROLS:

a. REPLACE BAS SYSTEM COMPLETELY. ALL BUILDING CONTROLS INCLUDING SENSORSAND ACTUATORS WILL BE REPLACED. FIELDWORK TO CONFIRM LOCATIONS.

b. BASIS OF DESIGN: NIAGARA TRIDIUM

c. ADDRESS ALL SWITCHOVER ISSUES. VERIFY PUMPS AND RTU'S PERFORMANCE DURINGSWITCHOVER BETWEEN COOLING AND HEATING SEASONS.

d. REPLACE ALL THERMOSTATS

SAMUEL TUCKER ES -HVAC REPLACEMENT

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

COMcheck Software Version 4.1.1.0

Mechanical Compliance Certificate

Project InformationEnergy Code:Project Title:Location:Climate Zone:Project Type:

Construction Site:

Mechanical Systems ListQuantity System Type & Description

1 AHU-1Heating: 1 each - Hydronic or Steam Coil, Hot Water, Capacity = 272 kBtu/hCooling: 1 each - Single Package DX Unit, Capacity = 218 kBtu/h, Water-Cooled Condenser, Unknown EconomizerFan System: None

SYSTEM COMPLIANCE EXEMPTION APPLIESExemption: Modification or repair without energy use change.

1 AHU-2Heating: 1 each - Hydronic or Steam Coil, Hot Water, Capacity = 75 kBtu/hCooling: 1 each - Single Package DX Unit, Capacity = 73 kBtu/h, Water-Cooled Condenser, Unknown EconomizerFan System: Unspecified

SYSTEM COMPLIANCE EXEMPTION APPLIESExemption: Modification or repair without energy use change.

1 AHU-3Heating: 1 each - Hydronic or Steam Coil, Hot Water, Capacity = 270 kBtu/h

No minimum efficiency requirement appliesCooling: 1 each - Single Package DX Unit, Capacity = 286 kBtu/h, Water-Cooled Condenser, Air Economizer

Proposed Efficiency = 12.20 EER, Required Efficiency: 12.20 EER + 13.4 IEERFan System: RF-3 | AHU-3 -- Compliance (Brake HP method) : Passes

Fans:FAN 9 Return, Single-Zone VAV, 5125 CFM, 1.0 motor nameplate hp, 0.4 design brake hp (0.5 max. BHP), 80.0 fan efficiency

gradeFAN 10 Supply, Single-Zone VAV, 5125 CFM, 5.0 motor nameplate hp, 3.8 design brake hp (4.0 max. BHP), 80.0 fan efficiency

gradePressure Drop Credits:

1

Particulate filtration credit: MERV 9 through 12, 1.2406 credit

SYSTEM VERIFICATION REQUIRED.

PLANT - CHILLERCooling: Water Chiller, Capacity 241 tons, Condenser Water-Cooled, Standard Centrifugal Chiller, Heat Rejection Equipment: AirCooled Condenser

PLANT COMPLIANCE EXEMPTION APPLIESExemption: Modification or repair without energy use change.

90.1 (2016) StandardSamuel Tucker HVAC ReplacementAlexandria, Virginia4aAlteration

Owner/Agent:Alexandria County Public School

Designer/Contractor:Kibart Inc.

Project Title:Data filename:

Samuel Tucker HVAC ReplacementP:\2020\20041.00\LEED\COMcheck.cck

Report date: 10/28/201 of 15Page

Mechanical Compliance StatementCompliance Statement: The proposed mechanical alteration project represented in this document is consistent with the buildingplans, specifications, and other calculations submitted with this permit application. The proposed mechanical systems have beendesigned to meet the 90.1 (2016) Standard requirements in COMcheck Version 4.1.1.0 and to comply with any applicablemandatory requirements listed in the Inspection Checklist.

Ian Nguyen - Mechanical Design EngineerName - Title Signature

Ian Nguyen October 28, 2020Date

Project Title:Data filename:

Samuel Tucker HVAC ReplacementP:\2020\20041.00\LEED\COMcheck.cck

Report date: 10/28/202 of 15Page

SAMUEL TUCKER ES -HVAC REPLACEMENT

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SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

STAGE /PLATFORM

GYM OFFICE

STUDENTSEATING

STORAGE

STORAGE

TOILET

PRINCIPAL

CONFERENCE

ASSTPRINCIPAL

FREEZER LOCKERS

KITCHEN

STORAGE

ELECSTUDENT DINING

SERVING

CORR

RECEIVING

GYM

ADMIN CORR

ADMIN CORR

MAIL /WORKROOM

TOILET

WAITING / RECEPTIONBOOK STORAGE

TOILET HEALTH

RX. VVT BRIDGE

HWRHWS

EX. 4" HWR / HWS

EX. 10x10 SAUP TO DUCTMAIN

2

2

2

2

& CAP

3

33

33

3

3

3

3

3

3

3

3

3

3

EX. 12x24RA UP

EX. 24x8 RA

EX. 16" Ø SAEX. 16" Ø SA

RX. 8" Ø SA

RX. 8" Ø SA

EX. 24x10RA DN

EX. 24x10RA DN

EX. 20" Ø SA

EX. 24x12 SA

EX. 24x12 RA

EX. 20x16 RA

EX. 20x16 SAEX. 16x12 SA

EX. 8" Ø SA

EX. 12x10 SA

EX. 6" Ø SA

EX. 8" Ø SA

EX. 10" Ø SA

EX. 6" Ø SA

EX. 8x12 SA EX. 10" Ø SA

EX. 6" Ø SA

EX. 12x10 SA

EX. 6" Ø SA

EX. 6" Ø SA

EX. 18x12 OA

EX. 8" Ø SA

EX. 8" Ø SA

EX. 8x4 EA

EX. 8x4 EA

EX. 10x10 SA

EX. 8" Ø SAEX. 8" Ø SA

EX. 6x6 SA

EX. 8x6 EA

EX. 8x6 SA

EX. 8x4 SA

EX. 16x12 EA

EX. 8" Ø SA

4

5

3

5

2

6

1

1

7 7

7

2

7

7

7

7

7

2

1

1

1

1

1

MEDIA

MEDIA STOR ITRX. WALL MOUNTED FCU

RX. 1" CD

RX. REFRIGERANT PIPINGTO ASSOCIATED ROOFMOUNTED ACCU

SAMUEL TUCKER ES -HVAC REPLACEMENT

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

KEY PLANNO SCALE

STAGE AREA

ADMIN AREA

MEDIA CENTER

DEMOLITION - FIRST FLOOR - STAGE AREA - HVACSCALE: 1/8" = 1'-0"

DEMOLITION - FIRST FLOOR - ADMINISTRATION AREA - HVACSCALE: 1/8" = 1'-0"

GENERAL NOTES

DRAWING NOTES

DEMOLITION TO EXTENT NECESSARY TOACCOMMODATE NEW EQUIPMENT.

RX. VVT BOX AND ALL ASSOCIATEDAPPURTENANCES. DEMOLISH TO EXTENTNECESSARY TO ACCOMMODATE NEW EQUIPMENT.

EX. SUPPLY AIR DIFFUSER.

RX. 8x6 EA UP TO EF-7. REFER TO NEW WORKROOF PLANS FOR MORE INFORMATION.

RX. 12x16 EA UP TO EF-8. REFER TO NEW WORKROOF PLANS FOR MORE INFORMATION.

RX. 18x12 OA UP TO MAU-1. REFER TO NEW WORKPLANS FOR MORE INFORMATION.

EX. PLENUM RETURN GRILLE.

1

2

3

4

5

6

7

REPLACE ALL DAMAGED AND RUSTEDDUCTWORK.

REPLACE ALL DAMAGED INSULATION.

1:

2:

DEMOLITION - FIRST FLOOR - MEDIA AREA - MECHANICALSCALE: 1/8" = 1'-0"

EX.PUMP

RX. PUMP

EX.PUMP

RX. PUMP

EX.BOILER

EX.BOILER

EX. 54x26RELIEF AIRDUCT.REPLACEDAMAGEDINSULATION.

EX. 60x30 OA.REPLACE DAMAGEDINSULATION.

EX. 36x30 SA.REPLACE DAMAGEDINSULATION.

EX.EXPANSIONTANK

EX. WATERHEATER

EX. 5" Ø CHR

EX. 4" Ø HWR / HWS

EX. 4" Ø HWR

EX. 4" Ø HWR

EX. 6" Ø PVCAIR INLET UPTO ROOF

EX. 4" Ø HWS

EX. UH

EX. 6" Ø DOUBLEWALL W/ MUFFLEREXHAUST UP TO ROOF

HWS

HWS

CHRCHR

HWS

HWR

HWR

HWR

DEMOLITION - MECHANICAL ROOM 171 - MECHANICALSCALE 1/4" = 1'-0"

DEMOLITION - MECHANICAL ROOM 243 - AHU 4 - MECHANICALSCALE 1/4" = 1'-0"

DEMOLITION - MECHANICAL ROOM 244 - AHU 5 - MECHANICALSCALE 1/4" = 1'-0"

EX. 36x18 RA.REPLACEDAMAGEDINSULATION.

EX. 36x20 RA.REPLACE DAMAGED INSULATION.

EX. 24x36 RA DN.REPLACE DAMAGEDINSULATION.

EX. AHU-5. REPLACEVIBRATIONISOLATION ON ALLINTERNAL FANS.

RX. 4" CHS/CHR AND 2"HWS/HWR. RX. FREEZEPROTECTION PUMP. REPLACE PIPEHEADER TO AHU AND DAMAGEDINSULATION. REFER TO DETAILFOR MORE INFORMATION.

EX. 24x36 RA DN.REPLACE DAMAGEDINSULATION.

EX. AHU-4. REPLACEVIBRATIONISOLATION ON ALLINTERNAL FANS.

RX. 4" CHS/CHR AND 2" HWS/HWR. RX. FREEZEPROTECTION PUMP. REPLACE PIPE HEADER TOAHU AND DAMAGED INSULATION. REFER TODETAIL FOR MORE INFORMATION.

EX. 36x20 RA.REPLACE DAMAGED INSULATION.

EX. 54x26RELIEF AIRDUCT.REPLACEDAMAGEDINSULATION.

EX. 60x30 OA.REPLACE DAMAGEDINSULATION.

EX. 36x30 SA.REPLACE DAMAGEDINSULATION.

EX. CHEMICALFEEDER

EX. AIRSEPARATOR

EX. DISCONNECT

RX.DISCONNECT

EX. SUPPLY FAN VFDEX. RETURN FAN VFD

EX. ATC PANEL

EX. SUPPLY FAN VFDEX. RETURN FAN VFD

EX. ATC PANEL

EX. 4" CHS/CHR AND 2"HWS/HWR. REPLACEDAMAGED INSULATION.

EX. 4" CHS/CHR AND 2"HWS/HWR. REPLACEDAMAGED INSULATION.

RX. 4" Ø HWR

EX. 4" Ø HWR

EX.EXP.TANK

3

3

2

1

RX. 4" Ø HWSRX. 4" Ø HWS

RX. 4" Ø HWS

EX. 4" Ø HWS

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

GENERAL NOTES DRAWING NOTES

EXISTING BOILERS. REPLACE PIPEHEADER, PIPES, AND INSULATION TOBOILER. REFER TO DETAILS FOR MOREINFORMATION.

REMOVE EXISTING PUMPS. REPLACEPIPE HEADER, PIPES, AND INSULATIONTO PUMPS. REFER TO DETAILS FORMORE INFORMATION.

EXISTING CONCRETE HOUSEKEEPINGPAD. EXTEND HOUSEKEEPING PAD TOACCOMMODATE NEW EQUIPMENT.REFER TO DETAILS FOR MOREINFORMATION.

REPLACE ALL DAMAGED AND RUSTEDDUCTWORK.

REPLACE ALL DAMAGED INSULATION.

11:

2:

KEY PLANNO SCALE

MECH ROOM

MECH ROOM

MECH ROOM

2

3

RX. AHU

RX. AHU

RX. AHU

EX. 36x24 DUCTUP TO GRAVITYRELIEF HOOD

EX. 30" Ø SA

EX. 30x24 OA RX. 30X18 OA

EX. 24X12 OA

EX. 36x24 RA

EX. 30x18 RA

EX. 20X16 OA

EX. 30x12 DUCTUP TO GRAVITYHOOD RELIEF

RX. 36X20 OA

EX. 36x14 OA

EX. 36x18 SA DN

RX. 66x14 RA DN

RX. 42x10 RA DN

RX. 42x10 RA DN

EX. 10" Ø SA DN

DEMOLITION - PENTHOUSE - MECHANICALSCALE 1/4" = 1'-0"

RX. 30X20 OA

RX. AHU

RX. AHU

RX. AHU

DEMOLITION - PENTHOUSE - HYDRONICSCALE 1/4" = 1'-0"

RX. 2 1/2" CHS /CHR, 2" HWS / HWR

EX. 2 1/2" CHS /CHR. 2" HWS / HWR.

RX. 2" CHS / CHR,1" HWS / HWR

EX. 2" CHS / CHR.1" HWS / HWR.

RX. 2 1/2" CHS /CHR. 2" HWS / HWR

EX. 2 1/2" CHS / CHR.2" HWS / HWR.

1

1

1

1

1

1

EX. RETURNFAN

EX. RETURNFAN

RX. RETURN FAN

2

M

M

M

M

M

M

M

M

M

EX.6' x 7'DOOR

RX. 36x14 OA

3

RX. 1" CD

RX. 1" CD

RX. 1" CD

7

7

7

7

7

7

7

7

CHR CHSHS HR

CHRCHS

HSHR

CHR

CHS

HSHR

6

6

6

EX. 36x24 DUCTUP TO GRAVITYRELIEF HOOD

EX. 30" Ø SA

EX. RETURNFAN

7

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

GENERAL NOTES

DRAWING NOTES

REMOVE EXISTING AHU. DEMOLISH DUCTWORK TOTO EXTENT NECESSARY TO ACCOMMODATE NEWEQUIPMENT.

TEMPORARILY RX. 82x64 OA LOUVER W/ 3'INSULATED INTAKE PLENUM TO ACCOMMODATE THEINSTALLATION OF NEW WORK.

REMOVE EXISTING 4" CHS/CHR AND 2" HWS/HWR.RX. FREEZE PROTECTION PUMP. REPLACE PIPEHEADER TO AHU AND DAMAGED INSULATION. REFERTO DETAIL FOR MORE INFORMATION.

EXISTING BUTTERFLY VALVE AT FLOOR.

EXISTING FLOOR DRAIN.

EXISTING ACCESS PANEL.

EX. CONCRETE HOUSEKEEPING PAD. EXTENDHOUSEKEEPING PAD TO ACCOMMODATE NEWEQUIPMENT. REFER TO DETAILS FOR MOREINFORMATION.

REPLACE ALL DAMAGED AND RUSTEDDUCTWORK.

REPLACE ALL DAMAGED INSULATION.

1

1:

2:

2

KEY PLANNO SCALE

PENTHOUSE

3

4

5

5

5

5

3

4

6

3

7

RX. EF

EX. RTU

EX. RTU

1

RX. EF1

RX. EF1

RX. EF1

RX. GREASE EF1

RX. EF1

RX. EF1

RX. ACCU

EX. LOUVEREDPENTHOUSE

EX. LOUVEREDPENTHOUSE

EX. LOUVEREDPENTHOUSE

EX. LOUVEREDPENTHOUSE

RX. KITCHEN MAU

RX. AIRCOOLEDCHILLER

EX. 5" ØCHS/CHR DN

RX. 5" ØCHS/CHRABOVE ROOF

1

EX. BOILEREXHAUST FLUES

RX. REFRIGERANT PIPING

2

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

KEY PLANNO SCALE

AREA OF WORKDEMOLITION - ROOF PLAN - MECHANICALSCALE: 1/16" = 1'-0"

GENERAL NOTES

DRAWING NOTES

DEMOLISH DUCTWORK TO THE EXTENTNECESSARY TO INSTALL NEW EQUIPMENT.

EXISTING RTU. PROVIDE VFD. REPLACECONTROLLER AND ALL SENSORS. RTU TOOPERATE AS A VAV RTU. REFER TOSEQUENCES FOR MORE INFORMATION.

PERFORM FIELDWORK TO VERIFYLOCATION AND SIZE OF EQUIPMENT.

1

1:

2

STAGE /PLATFORM

GYM OFFICE

STUDENTSEATING

STORAGE

STORAGE

ELECSTUDENT DINING

GYM

EX. 12x24RA UP

EX. 24X12SA UP

EX. 16" Ø SAEX. 16" Ø SA

A500

A500

A500

A500

SA-1

SA-2

SA-3

SA-4

TOILET

PRINCIPAL

CONFERENCE

ASSTPRINCIPAL

FREEZER LOCKERS

KITCHEN

STORAGE

CORR

RECEIVING

ADMIN CORR

ADMIN CORR

MAIL /WORKROOM

TOILET

WAITING / RECEPTIONBOOK STORAGE

TOILET HEALTH

SERVING

HWSHWR

EX. 4" HWS / HWR

2 1/2" HWS / HWR

1

1

2

3

4

5

7

6

HWS

HWR

HWS

HWR

HWS

HWR

2 1/2" HWS /HWR

EX BUTTERFLYVALVES

TOILET

PRINCIPAL

CONFERENCE

ASSTPRINCIPAL

FREEZER LOCKERS

KITCHEN

STORAGE

SERVING

CORR

RECEIVING

ADMIN CORR

ADMIN CORR

MAIL /WORKROOM

TOILET

WAITING / RECEPTIONBOOK STORAGE

TOILET HEALTH

HWRHWS

EX. 4" HWR / HWS

EX. 10x10 SAUP TO DUCTMAIN

4" HWR / HWSTO ADMINAREA

1

2

22

22

2

2

2

2

2

2

2

2

2

2

1

2

3

4

5

7

6

3

4

EX.12x10 SA

EX. 8"Ø

EX. 20x16 RA

EX. 6"ØEX. 8"Ø

EX. 16x12 SA

EX. 20x16 SA

EX. 16x10 SA

EX. 8X4 EA

EX. 12x10 SA

EX. 6"Ø

EX. 6"Ø

EX. 18x12 OA

EX. 6x6 SA

EX. 8"ØEX. 8"ØEX. 6"Ø

EX. 10x10 SA

EX. 8x6 SA

EX. 16x12 EA

EX. 16x8 EA

EX. 16x8 EAEX. 8x8 EA

5

EX. 8x12 SA EX. 10" Ø SA

EX. 10" Ø SA

EX. 6" Ø SA

2 1/2" HWS / HWR18x12 OA

7 7

7

7

7

7

7

7

9

6

MEDIA

MEDIA STOR ITFCU-1

1" CD

10

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

KEY PLANNO SCALE

STAGE AREA

ADMIN AREA

MEDIA CENTER

DRAWING NOTES

1NEW WORK - FIRST FLOOR - STAGE AREA - HVACSCALE: 1/8" = 1'-0"

NEW WORK - FIRST FLOOR - ADMINISTRATION AREA - HVACSCALE: 1/8" = 1'-0"

CONNECT 2 1/2" HWS/HWR TO EX. 4"HWS/HWR MAIN WITHIN MECHANICAL ROOM.

EX. SUPPLY DIFFUSER.

8X6 EA UP TO EF-7.

12x16 EA UP TO EF-8.

EX. 24x12 SA & 12X24 RA UP TO RTU-1.

18x12 OA UP TO MAU-1.

EX. PLENUM RETURN GRILLE.

PAINT NEW DUCTWORK AND GRILLES BLACKTO MATCH EXISTING.

EX. 20x16 OPEN-ENDED RA DUCT.

SIZE AND ROUTE REFRIGERANT PIPING PERMANUFACTURER RECOMMENDATION.

MANUFACTURER REQUIRED EQUIPMENTCLEARANCE.

LOCATION OF ISOLATION AND CONTROLVALVE ASSEMBLY. REFER TO CONNECTIONDETAIL FOR MORE INFORMATION.

2

3

4

5

NEW WORK - FIRST FLOOR - ADMINISTRATION AREA - HYDRONIC AND ATCSCALE: 1/8" = 1'-0"

6

7

8

8

88

8

8

9

NEW WORK - FIRST FLOOR - MEDIA AREA - MECHANICALSCALE: 1/8" = 1'-0"

10

11

12

12

12

12

12

12

12

12

11

1111

11

11

1111

11

11

11

11

11

11

EX.PUMP

EX.PUMP

EX.BOILER

EX.BOILER

EX.EXPANSIONTANK

EX. WATERHEATER

EX. 5" Ø CHR

EX. 4" Ø HWR / HWS

EX. 4" Ø HWR

EX. 4" Ø HWR

EX. 6" Ø PVCAIR INLET UPTO ROOF

4" Ø HWS

EX. UH

EX.EXP.TANK

EX. 6" Ø DOUBLEWALL W/ MUFFLEREXHAUST UP TO ROOF

HWS

HWS

CHRCHR

HWS

HWR

HWR

HWR

EX. CHEMICALFEEDER

EX. 54x26RELIEF AIRDUCT.REPLACEDAMAGEDINSULATION.

EX. 60x30 OA.REPLACE DAMAGEDINSULATION.

EX. 36x30 SA.REPLACE DAMAGEDINSULATION.

NEW WORK - MECHANICAL ROOM 243 - AHU 4 - MECHANICALSCALE 1/4" = 1'-0"

NEW WORK - MECHANICAL ROOM 244 - AHU 5 - MECHANICALSCALE 1/4" = 1'-0"

EX. 36x18 RA.REPLACEDAMAGEDINSULATION.

EX. 36x20 RA.REPLACE DAMAGED INSULATION.

EX. 24x36 RA DN.REPLACE DAMAGEDINSULATION.

EX. AHU-5. REPLACEVIBRATIONISOLATION ON ALLINTERNAL FANS.

4" CHS/CHR AND 2" HWS/HWR.PROVIDE FREEZE PROTECTION PUMPAND COIL CONNECTION. REFER TODETAIL FOR MORE INFORMATION.

EX. 24x36 RA DN.REPLACE DAMAGEDINSULATION.

EX. AHU-4. REPLACEVIBRATIONISOLATION ON ALLINTERNAL FANS.

4" CHS/CHR AND 2" HWS/HWR.PROVIDE FREEZE PROTECTION PUMPAND COIL CONNECTION. REFER TODETAIL FOR MORE INFORMATION.

EX. 36x20 RA.REPLACE DAMAGED INSULATION.

EX. 54x26RELIEF AIRDUCT.REPLACEDAMAGEDINSULATION.

EX. 60x30 OA.REPLACE DAMAGEDINSULATION.

EX. 36x30 SA.REPLACE DAMAGEDINSULATION.

EX. DISCONNECT

EX. 4" CHS/CHR AND 2"HWS/HWR. REPLACEDAMAGED INSULATION.

EX. 4" CHS/CHR AND 2"HWS/HWR. REPLACEDAMAGED INSULATION.

EX. 4" CHS/CHR AND 2"HWS/HWR. REPLACEDAMAGED INSULATION.

EX. 4" CHS/CHR AND 2"HWS/HWR. REPLACEDAMAGED INSULATION.

P-10

P-9

2

2

4" Ø HWS

EX. 4" Ø HWR

4" Ø HWR4" Ø HWS

2

2

VFD

P-4

P-3

1

1

EX. 4" Ø HWS

3

3

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

NEW WORK - MECHANICAL ROOM 171 - MECHANICALSCALE: 1/4" = 1'-0"

GENERAL NOTES DRAWING NOTES

EXISTING BOILERS. REPLACE PIPEHEADER, PIPES, AND INSULATION TOPUMPS. REFER TO DETAIL FOR MOREINFORMATION.

EXISTING CONCRETE HOUSEKEEPINGPAD. EXTEND HOUSEKEEPING PAD TOACCOMMODATE NEW EQUIPMENT.REFER TO DETAILS FOR MOREINFORMATION.

PROVIDE DRAIN PAIN FOR ALL PIPINGABOVE VFD.

PROVIDE PVC JACKET ON ALL PIPEINSULATION.

EXTEND EXISTING HOUSEKEEPING PADS TOACCOMMODATE NEW EQUIPMENT.

REPLACE ALL DAMAGE AND RUSTEDDUCTWORK.

REPLACE ALL DAMAGED INSULATION.

11:

2:

3:

4:

KEY PLANNO SCALE

MECH ROOM

MECH ROOM

MECH ROOM

2

3

AHU-1

EX. 36x24 DUCTUP TO GRAVITYRELIEF HOOD

EX. 36x24 DUCTUP TO GRAVITYRELIEF HOOD

EX. 30" Ø SA

EX. 36x18 SA DN

42x10 RA DN

CONTINUATIONTO GYM

EX. 30" Ø SA

EX. 10" Ø SA DN

AHU-2

AHU-3

RF-3

NEW WORK - PENTHOUSE - MECHANICALSCALE 1/4" = 1'-0"

NEW WORK - PENTHOUSE - HYDRONICSCALE 1/4" = 1'-0"

EX. 2 1/2" CHS /CHR. 2" HWS /HWR.

1 1/2" CHS / CHR,1" HWS / HWR

EX. 2" CHS / CHR.1" HWS / HWR.

2 1/2" CHS / CHR,2" HWS / HWR

EX. 2 1/2" CHS/CHR.2" HWS/HWR.

AHU-2

AHU-3

OALOUVER

EX. 30x24 OA

30X18 OA

EX. 24X12 OA

EX. 36x24 RA

EX. 30x18 RA

EX. 20X16 OA

EX. 30x12 DUCTUP TO GRAVITYRELIEF HOOD

36X20 OA

EX. 36x14 OA

66x14 RA DN

EX. 30x20 OA

42x10 RA DNEX. 6" CHS / CHR. 4"HWS / HWR.

2 1/2" CHS /CHR, 1 1/2"HWS / HWR

P-7

P-8

36x14 OA

CHR CHSHS HR

CHRCHS

HSHR

CHR

CHS

HSHR

EX. RETURNFAN

EX. RETURNFAN

7

7

7

7

7

7

7

77

1" CD

1" CD

1" CD

AHU-1

P-6

6

6

62

3

5

5

4

3

3

5

1

1

1

1

1

1

1

36x18 SA DN

EX. 24x12 SA DN

24x12 SA

EX. 30X12 OA

60x10 RA DN

1

60x10 RA

36x24 RA

SD 30x18 RA

SD

SD

SD

SD

20x16 RASD

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

Dul

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

KEY PLANNO SCALE

PENTHOUSE

GENERAL NOTES

DRAWING NOTES

TRANSITION DUCT TO FULL SIZE OFUNIT CONNECTION. PROVIDE FLEXDUCT FITTING AT UNIT CONNECTION.

TEMPORARILY RX. 82x64 OA LOUVERW/ 3' INSULATED INTAKE PLENUM TOACCOMMODATE THE INSTALLATIONOF NEW WORK.

REPLACE PIPE HEADER, VALVING, ANDFREEZE PROTECTION PUMP. REFER TODETAILS FOR MORE INFORMATION.

EX. BUTTERFLY VALVES AT FLOOR.

EX. FLOOR DRAIN.

EX. ACCESS PANEL.

EX. CONCRETE HOUSEKEEPING PAD.EXTEND TO ACCOMMODATE NEWEQUIPMENT.

1

2

3

4

5

PROVIDE PVC JACKET ON ALL PIPE INSULATION.

EXTEND EXISTING HOUSEKEEPING PADS TOACCOMMODATE NEW EQUIPMENT.

REPLACE ALL DAMAGE AND RUSTED DUCTWORK.

REPLACE ALL DAMAGED INSULATION.

1:

2:

3:

4:

6

7

EX. LOUVEREDPENTHOUSE

EX. LOUVEREDPENTHOUSE

EX. LOUVEREDPENTHOUSE

EX. LOUVEREDPENTHOUSE

EX. INTAKE ANDEXHAUST FLUES

EX. RTU-1

EX. 5" CHS/CHR DN

6" CHS / CHR

1

VFD

EX. RTU

EX. RTU

4

4

4

4

4

4

4

4

4

5

EF-5

EF-2

ACCU-1

MAU-1

EF-3

EF-8

EF-7

CH-1

EF-11

EF-1

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

NEW WORK - ROOF PLAN - MECHANICALSCALE: 1/16" = 1'-0"

DRAWING NOTES

LOCATE CHILLER ON EXISTING STRUCTURAL PLATFORM. MODIFYEXISTING STEEL STRUCTURE TO ACCOMMODATE AIR-COOLEDCHILLER SUPPORT POINTS. REMOVE EXISTING PAINT FROMSTEEL STRUCTURE AND REFINISH ENTIRE STEEL STRUCTUREWITH GALVANIZED PAINT.

SIZE AND ROUTE PER REFRIGERANT MANUFACTURERRECOMMENDATION.

MOUNT VFD TO EXISTING RTU-1. REPLACE CONTROLLER ANDALL SENSORS TO OPERATE AS VAV RTU. REFER TO SEQUENCESFOR MORE INFORMATION.

PROVIDE MANUFACTURER REQUIRE CLEARANCE.

PROVIDE HEAT TRACE AND ALUMINUM JACKET WITHINSULATION ALONG ROOFTOP PIPE ROUTING.

PROVIDE ACCU SUPPORT. REFER TO DETAILS FOR MOREINFORMATION.

1

KEY PLANNO SCALE

AREA OF WORK

2

2

3

3

4

5

6

6

GENERAL CONTROL SEQUENCES AND SAFETIES

COMPRESSOR

INDOOR UNIT

DDC

BAS

BACNET DIRECT DIGITAL CONTROLLERBY EQUIPMENT MANUFACTURER

BUILDING AUTOMATION SYSTEMINTEGRATION TO SYSTEM CONTROLLER

T BAS CONTROLLED THERMOSTATS

SPLIT SYSTEM POINTS LISTPOINT TYPE UNITS TREND ALARM

SYSTEM COMMAND B0 OFF/ON X

SYSTEM STATUS BI OFF/ON X

SYSTEM ERROR CODE AI ERROR CODE X X

GENERAL ALARM BI NORMAL/ALARM X

ROOM TEMPERATURE AI DEGREE F X X

PROVIDE ALL SOFTWARE POINTS TO ACCOMPLISH SEQUENCE OF OPERATION.

DUCTLESS SPLIT SYSTEMS - SEQUENCE OF OPERATIONS

1. All controls provided by the equipment manufacturer. Thermostat by the unit manufacturershall maintain space temperature setpoint. BAS shall monitor/control points indicated inpoints list via manufacturer provided BACNET interface.

2. The unit shall operate via manufacturer provide control sequence to maintain occupiedtemperature setpoint.

3. The following list includes majority of monitoring / control points. However, this list is notall inclusive. Refer to sequence of operation for additional I/O summary requirements.

4. If for any reason fan status does not match commanded value, an alarm will be generated.

GLOBAL AND MISCELLANEOUS POINTS LISTPOINT ABBREVIATION TYPE UNITS TREND ALARM READ/WRITE PROVIDER

BAS UPS BI NORMAL/ALARM X READ BAS

EMERGENCY GENERATOR AI AMPERAGE X READ BAS

EMERGENCY GENERATOR STATUS BI NORMAL/ALARM X READ BAS

TRANSFER SWITCH BI NORMAL/EMERG X READ BAS

FIRE ALARM CONTROL PANEL BI NORMAL/ALARM X READ ELEC

MANUAL HVAC EMERGENCY SHUTDOWN BI ENABLE/DISABLE X READ ELEC

OUTSIDE AIR TEMPERATURE AI DEG F. X READ BAS

OUTSIDE AIR HUMIDITY AI % RH. READ BAS

OUTSIDE AIR ENTHALPY SOFTWARE BTU/LB. X READ BAS

LEGEND: BAS = CONTROL CONTRACTOR, MFR = EQUIPMENT MANUFACTURER, MECH = MECHANICAL CONTRACTOR, ELEC = ELECTRICAL CONTRACTOR, EX = EXISTING

PROVIDE ALL SOFTWARE POINTS TO ACCOMPLISH SEQUENCE OF OPERATION.

SCHEDULING AND ZONES

1. Provide scheduling as instructed by the owner. The program shall monitor the controlledequipment statuses, where indicated as such on the points lists, to verify that theenable/disable status matches the command. When a status does not match a commandan alarm shall be generated.

OPTIMIZED START

1. Optimized start programs shall be accomplished by monitoring outdoor temperature,individual or zone space temperatures, and historical data of building recovery time. Theprogram shall automatically evaluate the thermal inertia of the building and the capacity ofthe HVAC system. At the start of the occupied schedule the program shall determine theminimum time of HVAC system operation need to satisfy the space set point requirementsand either increase or decrease start time based on indoor and outdoor conditions. Eachpiece of equipment shall start individually in response to its space or zone temperature andas indicated on the points list.

TIMED PROGRAMMED COMMANDS

1. The TPC program shall reduce the heating space temperature set point and raise thecooling space temperature set point during unoccupied hours. The software shall limit theamount of setback during periods of extremely cold weather to facilitate morning warm-upand prevent freeze-ups. Setback shall initially be set with the scale of 55°F indoors atoutdoor air temperatures of 50°F and warmer and 60°F indoors at 25°F or colder outdoorair temperatures. Set-up temperature shall be 85°F. Systems not capable of mechanicalcooling shall not perform night set-up.

2. Provide software to reduce the HVAC thermal load during warm-up or cool-down cyclesprior to the occupancy of the building. Heating-only units shall not perform cool-down.

3. Only RTU's that are controlled by space temperature sensor and are capable ofre-circulating air shall perform TPC.

SPACE TEMPERATURE AND HUMIDITY SETPOINTS

1. All space temperature sensors and thermostats shall have occupied heating set points of72°F and occupied cooling set points of 75°F unless noted otherwise.

2. All space temperature sensors and thermostats shall have unoccupied heating set points of62°F and unoccupied cooling set points of 85°F unless noted otherwise.

3. Space sensor local adjustment limitation. Software shall limit local set point adjustment to±2°F offset from the programmed set points (initially 72°F heating/75°F cooling).Programmed set point and actual set point due to local adjustment shall be displayed in allrelative trends and graphics.

OVERRIDE PROGRAMS

1. Touch screen: A touch screen graphic for manual override of all scheduled start/stop zonesshall be located in the operations office, coordinate location with owner. Override programshall to start any desired zone's equipment by touch screen. The program shall permitoperator selection of zones and shall enable all related equipment for that particular zone.The program shall index the selected zone to an "ON" mode in a minimum of one-hourincrements for a period of up to six hours in the override condition. Once overridden, thezone equipment shall operate in the occupied mode, including exhaust fan interlocks.

2. Timed override feature shall allow an operator to temporarily change the state ofscheduled equipment. an override command shall be selectable to apply to an individualunit, all units assigned to a given master schedule, or to all units in a building. Timedoverride shall terminate at the end of an operator selectable time, or at the end of thescheduled occupied/unoccupied period, whichever comes first. A password level that doesnot allow assignment of master schedules shall allow a timed override feature.

3. Provide equipment override programs for all RTUS. Program shall allow operator tooverride RTU "OFF" command to enable individual units for operation without overridingzone command. Duration of override shall be for 3 hours. Intent is to allow RTUS to runfor maintenance servicing without requiring other equipment in the zone to operate aswould be required if the zone were overridden on.

4. Override shall be possible for analog or time clock values for a given period of time, until a

given time or permanently. Overrides may be cleared at the keyboard or throughprogrammable user functions.

5. Keyed Emergency Fan Shutdown: Key switch at building entrance near fire alarmannunciator shall shutdown all RTUS and AHUS.

SAFETIES

1. All equipment and/or systems safeties and/or overrides such as freeze, fire, and smokedetection shall override bas as necessary to execute their functions without relying on bassoftware. High limit/low limit control shall be by BAS for equipment under BAS occupiedcycle temperature control and by electric devices in all other case. All safety controls shallbe wired independent of the motor starters HOA switches.

2. Provide automatic reset freezestat for equipment capable of introducing outdoor air. Upondetection of a freeze condition, the system shall de-energize and all control dampers andvalves shall revert to their closed positions.

3. Smoke Detection: Smoke detectors shall be proved for all air handling equipment over2000 CFM or as indicated on the control diagrams or floor plans. Upon detection of smokethe associated air handling unit shall shutdown and all dampers shall close, and the firealarm panel shall be alerted.

4. Condensate Pan Overflow Switch (all indoor equipment above ceiling): Switches furnishedby ATC contractor shall disable all heat pump or air conditioning units.

SCHEDULING

1. Operating schedules shall be adjustable via a graphic utility. Scheduling feature shallinclude multiple seven-day master and regular schedules, plus holiday and special eventschedules. A yearly calendar feature shall allow assignment of holidays and automaticreset of system real time clocks for transitions between daylight savings time and standardtime. Schedules shall reside in building controllers, not on the system server. Each type ofschedule shall have start time and stop time. Normal conventions shall be that "stop","unoccupied", or "off" shall place the controlled building/zone/equipment in the unoccupiedmode; "start", "occupied", or "on" shall place the controlled building/zone/equipment in

the occupied mode. default of the schedule shall be "off" (stop, unocc); operator entriesshall be required to schedule equipment "on" (start, occ). equipment shall be assigned tozone schedules. Each and all zones shall controllable by any of the five types of schedulesin any combination and the schedules shall operate concurrently.

Schedule types:a. Master Schedule: Provide a repeatable 7-day master schedule. All zones assigned to

the master schedule shall respond to the daily on/off entered in that schedule. Eachday schedule shall be able to have multiple on/off times. This schedule is construed asthat which controls the building on a regular, daily basis. Each building shall beprovided with 10-month and 12-month master schedules.

b. Regular Schedule: Provide repeatable 7-day regular schedules for each zone. Each dayof the schedule shall function with multiple on/off times. Regular schedules shall beused to provide "on" times in addition to those scheduled in the master schedule.

c. Holiday Schedule: Holiday schedules shall temporarily modify the master and regularschedules. it shall be possible to schedule holidays a year in advance. Holidays shall beentered by date; master and regular schedules shall respond to the holiday schedulefor the date entered.

d. Special Schedule: Special schedules supersede all other schedules. Special schedulesare single event schedules entered by time and date. Single event schedule shall beable to be entered up to one year in advance of the event. A minimum of 12 singleevent schedules per year per zone shall be provided. (the cessation of the single eventschedule shall be inherent once the date and time have passed).

ALARM CONDITIONS

1. When the BAS has generated an alarm, the designated on call person shall receive a textmessage with the alarm condition. The alarm conditions that generate a text message shallbe adjustable by the person on call.

SINGLE DUCT VARIABLE AIR VOLUME BOX WITH HEATING WATER REHEAT - SEQUENCE OF OPERATIONSVAV-THTG-O

VAV-O

VAV-AF

ZN-TGEN-A ZN-CO2

BAS POINTS LISTTYPE POINT POINT ABBREVIATION UNITS TREND ALARM READ/WRITE PROVIDER

AI PRIMARY AIRFLOW VAV-AF CFM X READ MFR

AO PRIMARY AIR DAMPER OUTPUT VAV-O % X READ/WRITE MFR

AO HEATING WATER VALVE OUTPUT HTG-O % X READ/WRITE MFR

AI SUPPLY AIR TEMPERATURE SA-T DEG F X READ MFR

BI GENERAL ALARM GEN-A ALARM/NORMAL X READ MFR

AI ZONE AIR TEMPERATURE ZN-T DEG F X X READ BAS

AI ZONE AIR CARBON DIOXIDE ZN-CO2 PPM CO2 X X READ BAS

PROVIDE ALL SOFTWARE POINTS TO ACCOMPLISH SEQUENCE OF OPERATION.

LEGEND: BAS = CONTROL CONTRACTOR, MFR = EQUIPMENT MANUFACTURER, MECH = MECHANICAL CONTRACTOR, ELEC = ELECTRICAL CONTRACTOR, EX = EXISTING

A. General:1. The building automation system (BAS) shall be capable of

indexing the VAV box to the occupied mode per a time of dayschedule or operator override.

2. The VAV manufacturer shall provide a stand alone BACnetcertified direct digital controller for factory mounting. Coordinateinterface/interlock requirements with the BAS manufacturer andcontrol diagram.

B. Occupied Mode:1. When the Zone Air Temperature rises above the cooling setpoint

of 75°F (adj.), the Primary Air Damper shall modulate opentoward the maximum amount of primary air as scheduled to thezone.

2. When the Zone Air Temperature drops below the heatingtemperature setpoint of 70°F (adj.), the Primary Air Damper shallmodulate to heating CFM and the Heating Water Valve shallmodulate to maintain Zone Air Temperature.

3. When the Zone Air Temperature is between the heating andcooling setpoints, the Primary Air Damper shall modulate to theminimum airflow set point. The Heating Water Valve shall close.

4. Demand Control Ventilation (DCV):a. When the Zone CO2 rises above 1000ppm (adj.), the

Primary Air Damper shall modulate open toward themaximum amount of primary air as scheduled to the zone.

b. On a continued rise in Zone CO2, the associated AHU shallmodulate the outdoor air damper open.

c. Upon the Zone CO2 rising above 1200 ppm (adj.), and alarmshall be annunciated at the BAS.

C. Unoccupied Mode:1. During the unoccupied mode, the primary air damper shall close

to its minimum open position.2. Night Setup: When the Zone Air Temperature rises above the

unoccupied cooling setpoint of 85°F (adj.), the Primary AirDamper shall open to provide the maximum amount of primaryair as scheduled to the zone. The associated primary air handlingunit (AHU) shall be indexed to the occupied mode until the ZoneAir Temperature is satisfied.

3. Night Setback: When the Zone Air Temperature drops below theheating setpoint of 60°F (adj.), the Primary Air Damper shallopen to provide the heating cfm. The associated primary airhandling unit (AHU) shall be indexed to the occupied mode andthe Heating Water Valve shall modulate to maintain Zone AirTemperature.

D. Miscellaneous1. The BAS shall monitor the Zone Air Temperature, Zone CO2,

Supply Air Temperature and Primary Airflow of the VAV.2. The Primary Air Damper shall be closed to the minimum position

whenever the associated RTU is de-energized or in alarm.3. If the box is in alarm, the Primary Air Damper shall close, the

Heating Water Valve shall be closed, and the box shall beremoved from all polling.

EXHAUST AIR

SCALE: NONECONTROL DIAGRAM

BYPASS AIR

EXHAUSTFAN (TYP)

EXHAUST AIR

SCALE: NONECONTROL DIAGRAM

M

MEAD-O

BAD-O

SPESP-DP

VFD

EAF-FEAF-SEAF-C

EAF-SEAF-C

BAS POINTS LISTPOINT ABBREVIATION UNITS TREND ALARM READ/WRITE PROVIDER

BO SUPPLY FAN COMMAND SAF-C OFF/ON READ/WRITE BAS

BI SUPPLY FAN STATUS SAF-S OFF/ON X READ BAS

BO EXHAUST FAN COMMAND EAF-C OFF/ON READ/WRITE BAS

BI EXHAUST FAN STATUS EAF-S OFF/ON X READ BAS

AO EXHAUST AIR DAMPER OUTPUT RAD-O % X READ/WRITE MFR

AO BY-PASS AIR DAMPER OUTPUT RAD-O % X READ/WRITE MFR

BO EXHAUST AIR DAMPER COMMAND EAD-O OPEN/CLOSE READ/WRITE MFR

AO EXHAUST FAN SPEED EAF-F Hz X READ/WRITE MFR.

AI ZONE AIR TEMPERATURE ZN-T DEG F X X READ BAS

LEGEND: BAS = CONTROL CONTRACTOR, MFR = EQUIPMENT MANUFACTURER, MECH = MECHANICAL CONTRACTOR, ELEC = ELECTRICAL CONTRACTOR

PROVIDE ALL SOFTWARE POINTS TO ACCOMPLISH SEQUENCE OF OPERATION.

TZN-T

EXHAUST FANS - SEQUENCE OF OPERATIONS

SEQUENCE OF OPERATIONS:

EF-2, EF-3, EF-7, and RF-1,RF-2,RF-3 shall operate on an occupied/unoccupied schedule and interlocked withassociated AHUs/RTUs. If the fan status does not match the commanded value, an alarm will be generated.

EF-5 shall be interlocked with the associated kiln. manufacturer supplied contacts shall energize a control relay toenergize the exhaust fan during operation. When kiln is de-energized the exhaust fan shall continue to run for 60minutes via a control relay with adjustable timer.

EF-1, EF-11 shall be controlled via a wall mounted cooling only thermostat. Fan shall be commanded on when thespace temperature is above 85°F. The fan shall be interlocked to its associated motor operated damper on the outsideair intake louver. During failure/alarm of fan or associated unit heater fan shall be disabled and motor operateddamper shall be closed.

EF-8 shall be interlocked with kitchen make-up air unit. Refer to kitchen make-up air unit sequence of operations foradditional information.

BUILDING AUTOMATION SYSTEMBAS

SEQUENCE OF OPERATION

BAS POINTS LIST (MAU-1/EF-8)POINT ABBREVIATION TYPE UNITS TREND ALARM READ/WRITE PROVIDER

SUPPLY FAN COMMAND SAF-C BO OFF/ON READ/WRITE BAS

SUPPLY FAN STATUS SAF-S BI OFF/ON X READ BAS

SUPPLY AIR TEMPERATURE SA-T AI DEG F X X READ MFR

OUTSIDE AIR DAMPER COMMAND OAD-O BO OPEN/CLOSE READ/WRITE MFR

HEATING OUTPUT HTG-O BO % READ/WRITE MFR

SUPPLY AIR SMOKE DETECTOR SSMK-A BI ALARM/NORMAL X READ BAS

LEGEND: BAS = CONTROL CONTRACTOR, MFR = EQUIPMENT MANUFACTURER, MECH = MECHANICAL CONTRACTOR, ELEC = ELECTRICALCONTRACTOR

PROVIDE ALL SOFTWARE POINTS TO ACCOMPLISH SEQUENCE OF OPERATION.

T

HTG-O

SA-T

MUA

M

SAF-C

OAD-O

SSMK-A

OUTSIDEAIR

SAF-SSD

A. GENERAL

1. KITCHEN MAKE-UP AIR UNIT SHALL BE INTERLOCKED WITH EF-8. THE BUILDING AUTOMATION SYSTEM WILL PROVIDEMONITORING AND OVERRIDE CAPABILITIES.

2. WHEN THE KITCHEN GREASE EXHAUST FAN HAS BEEN COMMANDED ON BY EITHER THE KITCHEN CONTROL PANEL OR THEBAS, THE MAKE-UP AIR UNIT SHALL BE COMMANDED ON. THE MAKE-UP AIR UNIT SHALL RUN CONTINUOUSLY UNTIL THEKITCHEN EXHAUST FAN HAS BEEN COMMANDED OFF.

3. IF THE SUPPLY FAN STATUS DOES NOT MATCH THE COMMAND STATUS AN ALARM SHALL BE GENERATED.

4. UPON DETECTION OF SMOKE, THE SUPPLY FAN SHALL BE COMMANDED OFF, FURNACE COMMANDED OFF, AND OUTSIDE AIRDAMPER CLOSED. AN ALARM SHALL BE GENERATED.

MAKE-UP AIR UNIT - SEQUENCE OF OPERATIONS

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

Dul

aney

Val

ley

Roa

d, S

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301

Pho

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10-4

94-1

111

Tow

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MD

212

04

Fax

: 410

-494

-111

2

KIB

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TCO

NSUL

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ENGI

NEER

S

CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

VARIABLE AIR VOLUME, DIRECT EXPANSION COOLING, HOT GAS REHEAT, GAS HEATING, ROOFTOP UNITWITH EXHAUST FAN - SEQUENCE OF OPERATIONS

A.General

1. The building automation system (BAS) shall be capable of energizing andde-energizing the Rooftop Unit (RTU) per a time of day schedule or operatoroverride.

B. Unoccupied Mode

1. When the RTU is in the unoccupied mode and the zone temperature is withinthe acceptable temperature ranges the following shall occur:a. The supply and exhaust fans shall be off,

b. OA damper shall be closed, return air damper shall be fully open,

c. The DX cooling shall be de-energized.

2. Night Setup (NSU): When zone temperature rises above the zone unoccupiedcooling temperature setpoint of 85°F (adjustable), the RTU shall be energized.The supply fan shall energize and modulate to its maximum speed. The OAdamper shall remain closed. The return air damper shall be fully open. Thecompressors shall modulate to maintain the zone air temperature setpoint.The gas heat shall be disabled.a. Economizer: The RTU shall be allowed to utilize economizer (Refer to

economizer section for sequence of operation).

b. The unit shall be de-energized when the zone temperature falls below thezone unoccupied cooling temperature setpoint minus a temperaturedifferential of 2°F (adj.).

3. Night Set-Back (NSB): When the zone temperature falls below the zoneunoccupied heating temperature of 55°F (adj.), the RTU shall be energized.The supply fan shall energize and modulate to its maximum speed. The OAdamper shall remain closed. The return air damper shall be fully open. Thegas heat shall be enabled and modulate to maintain the zone air temperaturesetpoint. The compressors shall remain de-energized. The unit shall bede-energized when the zone temperature rises above the zone unoccupiedheating temperature setpoint plus a temperature differential of 2°F (adj.).

C.Morning Mode

1. Morning Warm-Up (MWU) or Cool-Down (MCD) shall be energized one hour(adj.) prior to the start of occupied mode per the normal occupancy schedule.

2. MWU: The supply fan shall energize and modulate to its maximum speed.The OA damper shall remain closed. The return air damper shall be fully open.The gas heat shall be enable and modulate to maintain the zone temperaturesetpoint of 70°F (adj.). The compressors shall remain de-energized. Uponreaching setpoint, the RTU shall operate in occupied mode when the zonetemperature is within 2°F (adj.) of setpoint.

3. MCD: The supply fan shall energize and modulate to its maximum speed. TheOA damper shall remain closed. The return air damper shall be fully open.The compressors shall modulate to maintain the zone temperature setpoint(75°F, adj.). The heating water valve shall be closed. Upon reaching setpoint,the RTU shall operates in occupied mode when the zone temperature is within2°F of setpoint.

D.Occupied Mode

1. Generala. RTU shall be in occupied mode automatically based on an occupancy

schedule programmed into the BAS or manually through an operatoroverride.

b. The supply fan and exhaust fan shall operate continuously. The exhaust fanshall operate continuously and modulate to maintain zone differentialpressure. The DX cooling output, gas heat, and dampers shall modulate insequence to maintain the discharge air temperature and return humiditysetpoints.

c. The OA damper shall be opened at or above the minimum position as set bythe balancer. On a rise in CO2, the outside air damper shall modulate opento maintain zone CO2 setpoint.

3. Fan Operationa. Each fan status shall be monitored by the BAS. If the status does not

match with the commanded value, an alarm shall be generated.

b. The supply fan speed shall modulate to maintain the supply air staticpressure setpoint.

c. The exhaust fan speed shall modulate to maintain the building pressuresetpoint (adj.) to be determined by the balancer.

4. Discharge air temperature controla. The discharge air temperature shall be 52°F (adjustable).

b. When the DAT is below the DAT setpoint, the gas heating shall modulate tomaintain the DAT setpoint. The DX compressors shall be de-energized.

c. When the DAT rises above the DAT setpoint, the DX cooling shall energizeand the gas heating valve shall be closed.

d. If OA conditions and the RA humidity are within the required ranges,economizer shall be energized. Refer to the economizer sequence for moreinformation.

E. Economizer Control

1. The economizer mode shall be energized if cooling is required and the outsideair enthalpy is less than the return air enthalpy. When the outside air enthalpyis greater than the return air enthalpy then the economizer mode shall bede-energized.

2. The OA damper shall modulate the airflow between the minimum position andthe full open position to maintain the Zone Temperature setpoint. The returndamper shall modulate opposite the OA damper.

3. When economizer is initially energized the mechanical cooling shall becommanded off. If the Zone Temperature continues to rise and the OA damperis 100% open, then the mechanical cooling shall be commanded on and workin sequence with the economizer cycle as long as OA conditions are within therequired ranges.

F. Safeties1. When the HOA switch is pushed to “off”, the unit shall be shut down, the

supply and exhaust fans shall be de-energized, the outside air damper shall beclosed, and the return dampers shall be open.

2. The supply and exhaust fans shall be shut down whenever any associated lowlimit sensor trips at 38°F. The low limit sensor shall require a manual reset.An alarm shall be annunciated at the BAS.

3. Whenever a supply, or exhaust fan status does not match the commandedvalue, an alarm shall be annunciated at the BAS. If any fan fails all other fansfor the associated unit shall be commanded off and the OA damper closed. Thealarm shall remain until manually cleared.

4. Smoke detectors shall shut down the associated unit. The supply and exhaustfans shall be de-energized, the OA damper shall be closed. An alarm shall beannunciated at the BAS.

5. All safeties shall be hardwired.

BAS POINTS LISTTYPE POINT POINT ABBREVIATION UNITS TREND ALARM READ/WRITE PROVIDER

AI OUTSIDE AIR TEMPERATURE (GLOBAL) OA-T DEG F X READ BAS

AI OUTSIDE AIR HUMIDITY (GLOBAL) OA-H %RH X READ BAS

AI ZONE AIR TEMPERATURE ZN-T DEG F X X READ BAS

AI ZONE AIR HUMIDITY ZN-H % RH X X READ BAS

AI MIXED AIR TEMPERATURE MA-T DEG F X READ MFR

AI COOLING COIL DISCHARGE TEMPERATURE CCD-T DEG F X READ MFR

AI SUPPLY AIR TEMPERATURE SA-T DEG F X READ MFR

AI ZONE DIFFERENTIAL PRESSURE ZN-DP IN H2O X READ BAS

AI RETURN AIR TEMPERATURE RA-T DEG F X READ MFR

AI RETURN AIR HUMIDITY RA-H %RH X READ MFR

AO EXHAUST AIR DAMPER OUTPUT EAD-O % X READ/WRITE MFR

AO OUTSIDE AIR DAMPER OUTPUT OAD-O % X READ/WRITE MFR

AO RETURN AIR DAMPER OUTPUT RAD-O % X READ/WRITE MFR

AO EXHAUST FAN SPEED EAF-F Hz X READ/WRITE MFR

AO SUPPLY FAN SPEED SAF-F Hz X READ/WRITE MFR

AO GAS HEATING OUTPUT HTG-O % X READ/WRITE MFR

AO COOLING OUTPUT CLG-O % READ/WRITE MFR

AO HOT GAS REHEAT OUTPUT HGR-O % READ/WRITE MFR

BI SUPPLY FAN STATUS SAF-S ON/OFF X X READ MFR

BI EXHAUST FAN STATUS EAF-S ON/OFF X X READ MFR

BI SUPPLY AIR SMOKE DETECTOR SSMK-A ALARM/NORMAL X READ MFR

BI RETURN AIR SMOKE DETECTOR RSMK-A ALARM/NORMAL X READ MFR

BI DIRTY FILTER STATUS DFLT-S ALARM/NORMAL X READ MFR

BI LOW LIMIT SWITCH STATUS LL-A ALARM/NORMAL X READ MFR

BI HIGH STATIC PRESSURE ALARM HSP-A ALARM/NORMAL X READ MFR

BI COMPRESSOR ALARM COMP-A ALARM/NORMAL X READ MFR

BO SUPPLY FAN COMMAND SAF-C ON/OFF READ/WRITE MFR

BO EXHAUST FAN COMMAND EAF-C ON/OFF READ/WRITE MFR

BO COOLING COMMAND CLG-C ON/OFF READ/WRITE MFR

AI OUTSIDE AIR FLOW RATE OA-AF CFM READ BAS

PROVIDE ALL SOFTWARE POINTS TO ACCOMPLISH SEQUENCE OF OPERATION.

LEGEND: BAS = CONTROL CONTRACTOR, MFR = EQUIPMENT MANUFACTURER, MECH = MECHANICAL CONTRACTOR, ELEC = ELECTRICAL CONTRACTOR, EX = EXISTING

DFLT-S

OA-T OA-H

ZN-T ZN-H

MA-T SA-T

ZN-DP

RA-T RA-H RSMK-AEAD-O

OAD-O RAD-O

EAF-FEAF-SEAF-C

SAF-FSAF-SSAF-C

HTG-OHGR-OCLG-O

SSMK-ALL-ACCD-T

CLG-C

COMP-A

COMP-A RSMK-A SSMK-A HSP-ASAFETY CIRCUIT

LL-A

HSP-A

AFMSOA-AF

CHILLED WATER PUMPS - SEQUENCE OF OPERATIONS

The pumps shall be energized by the BAS and shall run continuously during theoccupied cooling mode and shall de-energize during the unoccupied mode. BASshall first start the lead pump and if the lead starts and then fails or fails to start,then the lag pump will automatically start. A system differential pressure switchshall be used to prove flow. An alarm shall sound at the BAS if either pump fails.Chilled water supply temperature shall be reset from the BAS. Normal supplytemperature shall be 44°F.

HOT WATER BOILERS - SEQUENCE OF OPERATIONS

The boilers shall be energized by the BAS. The boilers shall operate in sequenceunder control of a header control system furnished by the ATC contractor. Hotwater supply temperature shall be reset from the BAS. Normal supply temperatureshall be 140°F.

HOT WATER PUMPS - SEQUENCE OF OPERATIONS

The pumps shall be energized by the BAS. BAS shall first start the lead pump and ifthe lead starts and then fails or fails to start, then the lag pump will automaticallystart. A system differential pressure switch shall be used to prove flow. An alarm shallsound at the BAS if either pump fails.

AHU-1 (GYM), AHU-2 (STAGE), AND AHU-3 (CAFETERIA) CV - SEQUENCE OF OPERATIONS

Air handling unit fan and return air fan shall be energized by the building automationsystem (BAS) and shall run continuously during occupied mode and shall de-energizeduring unoccupied mode except when activated by the night set-back control.Occupied/Unoccupied/Night set-back modes shall be as programmed from the BAS.

When AHU fan is started and return air temperature is 65°F or above, min. OAdamper D-1 shall open to maintain a maximum 750 PPM concetration of CO2 (adj.0-2000) as sensed by the carbon dioxide sensor and RA damper D-2 shall close inproportion. Minimum oa damper shall have a minimum setting of 500 CFM for AHU-1,200 CFM for AHU-2, and 1400 CFM for AHU-3. Thermostat T-1 (acting thru low limitT-3) shall maintain programmed room temperature by modulation of preheat valveV-1 and chilled water valve V-2 in sequence. Preheat valve shall never be openedconcurrently with the cooling coil valve. Each preheat coil circulation pump shall beenergized by the BAS when the outisde air temperature is 50°F and below.

A differential enthalpy controller shall activate an economizer cycle when enthalpy of

OA is lower than enthalpy of RA. During economizer cycle: chilled water valve V-2shall close. Room thermostat shall modulate maximum OA damper D-3, with RAdamper D-2 modulating in to D-3. Low limit thermostat T-2 shall override economizercycle and return max OA and RA dampers to normal positions if mixed airtemperature is 45°F or lower.

Differential duct static pressure control DPC-1, located in RA fan outlet, shallmodulate relief air damper D-4 to maintain constant duct static pressure.

System shall include smoke detectors and freeze protection.

During Unoccupied Mode, the night thermostat shall cycle supply and return fans tomaintain minimum room temperatures as programmed from the BAS. The OAdampers shall remain closed during Unoccupied cycle.

FREEZE PROTECTION (TYP FOR AHU-1, AHU-2, AHU-3, AHU-4, AHU-5) - SEQUENCE OF OPERATIONS

Each preheat coil circulating pump shall be energized by the BAS when the OA tempatureis 50°F and below.

Freeze protection thermostat located on entering air side of chilled water coil shall overridecontrol of preheat coil valve V-1 to open valve when temperature entering chilled water coilis 40°F and shall stop the supply fan and close all OA dampers at 35°F.

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

Dul

aney

Val

ley

Roa

d, S

uite

301

Pho

ne: 4

10-4

94-1

111

Tow

son,

MD

212

04

Fax

: 410

-494

-111

2

KIB

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TCO

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ENGI

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

NOTES:

1. ALL PIPING SUPPORT SYSTEM COMPONENTS SHALL HAVE ANON-CORROSIVE METAL FINISH, GALV-KROM OR EQUAL.

2. ALL COPPER PIPING SHALL BE PROTECTED FROM CONTACT WITHDISSIMILAR METALS.

3. PROVIDE BLOCKING TO AVOID, CRUSHING OF INSULATION.

STRUCTURE ABOVE

ANCHOR TO STRUCTURE ABOVE

INSULATED PIPE WITHSHEET METAL SHIELD 12"LONG ALL AROUND

U-BOLT OR INTERLOCKING STRAP

BARE PIPE (TYP.)

GALVANIZED "C"CHANNEL OR STEELANGLE (GAUGE AS REQ'D)

WASHER & NUT

BLANK END CAP

ALL THREAD ROD

COUPLING AS REQUIRED

STRUCTURALJOIST/BEAM (TYPICAL)

CLAMP ROD TOTOP CORD OFJOIST/BEAM

H2

H3

PLUGGED CLEAN-

TO STORM WATER ORFLOOR DRAIN, REFERTO DRAWINGS

PITCHED DOWN TOWARD DRAIN

PLUGGED CLEAN-OUT TEE

DRAIN SHALL BE AT LEAST THE SAMESIZE AS THE NIPPLE ON THE DRAIN PAN

HVAC UNITCONDENSATECONNECTION

PIPE SIZING CHART

EQUIPMENT TONNAGE REQ'D PIPE SIZE

UP TO 20 TONS 3/4"

OVER 20 TONS TO 40 TONS 1"

OVER 40 TONS TO 90 TONS 1 1/4"

OVER 90 TONS TO 125 TONS 1 1/2"

OVER 125 TONS TO 250 TONS 2"

NOTES:

1. FOR DRAW THRU TRAPS: "H1" = FAN INLET PRESSURE PLUS 1 INCH, "H2" = H1/2.

2. FOR BLOW THRU TRAPS: "H1" = 1 INCH, "H2" = FAN OUTLET PRESSURE PLUS 1/2 INCH.

3. H3 EQUAL TO 1 INCH.

H1

DETAIL - TYPICAL CONDENSATE DRAIN TRAPSCALE: NONE

DETAIL - TRAPEZE PIPE SUPPORTSCALE: NONE

CLEAN OUT

A200

SIDE TAP

DETAIL - TYPICAL CEILING DIFFUSER /FLEXIBLE DUCT CONNECTIONSSCALE: NONE

NOTES:

1. REFER TO AIR DEVICE SCHEDULE FOR TYPE OF DISCHARGES.

2. REFER TO ARCHITECTURAL DRAWINGS FOR CEILING TYPES.

3. WHEN BRANCH DUCT LENGTHS EXCEED 5'-0", UTILIZE HARD DUCT,SAME SIZEAS FLEXIBLE DUCT OR AS INDICATED ON PLANS.

4. MAXIMUM FLEXIBLE DUCT SAG SHALL NOT EXCEED 1/2" PER LINEAR FOOT.

5. FLEXIBLE DUCT ELBOW SUPPORTS SHALL BE ATTACHED TO FLEXIBLE DUCTSUTILIZING MANUFACTURER RECOMMENDED DRAW BANDS.

AIR DEVICE SCHEDULE REFERENCE SYMBOL

CUBIC FEET PER MINUTE OF AIR (CFM)

OPPOSED BLADE DAMPER

CEILING DIFFUSER, REFER TOFLOOR PLANS FOR LOCATIONS ANDAIR DEVICE SCHEDULE FOR SIZES

FLEXIBLE DUCT 5'-0" MAXIMUM LENGTH, USEAS REQUIRED FOR DIFFUSER ALIGNMENT,REFER TO AIR DEVICE SCHEDULE FOR SIZE

VOLUME DAMPER

ROUND SPIN-IN OR SQUARE TOROUND DUCT FITTING (SIDE, TOPBOTTOM CONNECTION)

PROVIDE INSULATION ONDIFFUSER AND TAPE AIR TIGHT

PROVIDE INSULATIONON DIFFUSER ANDTAPE AIR TIGHT

FLEXIBLE DUCT ELBOW SUPPORT. REFER TO

AND FOR VARIATIONS.A B

A CEILING DIFFUSER CONNECTION

SUSPEND FROM STRUCTUREWITH TIE

STRUCTUREABOVE

RIGID DUCT,SPIN-IN

FLEXIBLE DUCTELBOW SUPPORT

5'-0" MAX.LENGTH

CEILING DIFFUSER

1 X DIAMETER,MINIMUM

SCALE: NONE

HVAC DUCT OREQUIPMENT

ROUND SPIN-IN OR SQUARE TOROUND DUCT FITTING (SIDE, TOP,OR BOTTOM CONNECTION)

FLEXIBLE DUCT

FLEXIBLE DUCTFLEXIBLE DUCTELBOW SUPPORT

B FLEXIBLE DUCT CONNECTION TO DUCT BRANCHSCALE: NONE

NOTE: INSTALL FLEXIBLE DUCT ELBOW SUPPORTS AT ALL DIFFUSERS.

NOTE: INSTALL FLEXIBLE DUCT ELBOW SUPPORTS AT ALL FLEXIBLE DUCT 90° BENDS.

CEILING

PROVIDEDRAW BAND

PROVIDE DRAW BAND

DETAIL - TYPICAL SINGLE AND DOUBLE LINE DUCTWORKSCALE: NONE

FLEXIBLE DUCTTAKE-OFF

(WITHIN 6'-0" TRUNK)

TYPICAL SPLIT

DIFFUSER OR REGISTERTAPOFF & TRANSITION

SINGLE LINE DOUBLE LINE DOUBLE LINE

DOUBLE LINE

SINGLE LINE

SINGLE LINE

SINGLE LINESINGLE LINESINGLE LINE

DOUBLE LINEDOUBLE LINEDOUBLE LINE

EXHAUST

SUPPLY

d

TYPICAL TAPOFF & TRANSITIONFROM SIDE OF DUCT

OUTLET LOCATED ATEND OF RUN

DIFFUSER

6'-0" MAX.FLEXIBLE DUCT

SUPPLY AIRDIFFUSER 6" MIN. AIR

CUSHION

DOUBLE THICKTURNING VANES

REGISTER ORDIFFUSER

REGISTER ORDIFFUSER

DUCTTRANSISTION

DUCTTRANSISTION

SUPPLY AIRDIFFUSER

6'-0" MAX. LENGTHFLEXIBLE DUCT

SUPPLY AIRDUCT

SPIN-IN FITTING W/VOLUME DAMPER

6" MIN. AIRDAMPER

CUSHION HEADSSUPPLY ONLY

CEILING

OUTLET

AIR FLOW

AIR FLOWAIR FLOW

ROUNDSUPPLY DUCT

SQUARE TO ROUNDOR ROUND SPIN-INFITTING

SQUARE /RECTANGULARDUCT

SQUARE /RECTANGULAR DUCT

DOUBLE LINE

DETAIL - TYPICAL BRANCH DUCTWORKSCALE: NONE

45°

L

VOLUME DAMPER

ELBOW WITH DOUBLETHICKNESS TURNINGVANES

STANDARD RECTANGULARBOOT WITH RECTANGULARTO ROUND TRANSITION

VOLUME DAMPER(TYPICAL)

BELL MOUTH CONNECTIONWHERE HEIGHT OF MAINDUCT PERMITS

STANDARD RECTANGULARDUCT BRANCH TAKE-OFF

(BRANCH FLOW LESS THAN 25% OF MAIN FLOW)

STANDARD RECTANGULAR BRANCHTAKE-OFF

L = 1/ 4 W OR4" MINIMUM

WVOLUMEDAMPER

AIRFLOW

AIRFLOW

AIRFLOW

ALTERNATE RECTANGULAR TO ROUNDDUCT BRANCH CONNECTIONS

(BRANCH FLOW LESS THAN 25% OF MAIN FLOW)

BRANCHYVD

Y

W MAIN

15° MAXIMUM BOTH SIDES

45° RECTANGULARTO ROUND BOOTCONNECTION

90° RECTANGULARTO ROUND BOOTCONNECTION

45°

DETAIL - TYPICAL ROUND DUCT FITTINGSSCALE: NONE

FABRICATED FLAT OVAL, ROUND FITTINGS AND ELBOWS - 9" DIA. AND LARGER

5 GORE90° ELBOW

3 GORE60° ELBOW

3 GORE45° ELBOW

2 GORE30° ELBOW

REDUCING 5 GORE90° ELBOW

REDUCING 3 GORE45° ELBOW

3 GORE HEEL TAP 45° CONICAL LATERALREDUCING 45°

CONICAL LATERAL Y BRANCH 90°REDUCING

Y BRANCH 90°

DIE - STAMPED ELBOW - 8" DIA. AND LESS90° ELBOW 60° ELBOW 45° ELBOW 30° ELBOW

CONCENTRICREDUCER

AIR FLOW(TYP.)

LoLOSS TEE LoLOSS90° CROSS

LoLOSSREDUCING TEE

LoLOSS 90°REDUCING CROSS

ECCENTRICREDUCER

NOTES:

1. REFER TO SPECIFICATIONS FOR ADDITIONAL PIPE SUPPORT TYPES ANDREQUIREMENTS.

2. REFER TO STRUCTURAL DRAWINGS FOR ADDITIONAL PIPE SUPPORT DETAILS,INSTALLATION AND REQUIREMENTS.

3. COORDINATE POINT LOADS WITH PROJECT STRUCTURAL ENGINEER.4. REFER TO SPECIFICATIONS FOR INSULATION TYPES.

DETAIL - PIPE HANGER SUPPORTSCALE: NONE

SECURE TO STRUCTURE INACCORDANCE WITHSTRUCTURAL SPECIFICATIONS

ADJUST HEIGHT AFTER INSTALLATION

CLEVIS HANGER

ALL THREAD ROD SIZE PERPROJECT SPECIFICATIONS

16 GAUGE GALVANIZEDSHEET METAL INSULATIONSHIELD

PIPE INSULATIONWITH SUPPORT BLOCKING

PIPE

SEALING AND ANCHORING COLLAR

CENTER PIPE IN SLEEVE

STANDARD WEIGHT STEELPIPE POURED IN PLACE

COAT EXTERIOR SURFACEWITH TAR COMPOUND

PACK W/ MINERAL WOOL& CAULK ALL AROUND

SAW CUT AND GROUT WHERE SLEEVEIS TO BE INSTALLED GROUT SHALLBE ASTM C270 TYPE M, COLOR SHALLBE AS DIRECTED BY ARCHITECT

NOTES:

1. PROVIDE WEATHER TIGHT PIPE SLEEVES AT ALL WALL PENETRATIONS.

2. REFER TO ARCHITECTURAL DRAWINGS FOR WALL CONSTRUCTIONS.

DETAIL - TYPICAL PIPE SLEEVE THRU EXTERIOR WALLSCALE: NONE

UNION

OUT TEE

SLOPED PAN

4. CONDENSATE TRAP SHALL HAVE DRAINING CAPABILITY.

DETAIL - TYPICAL BASE MOUNTED END SUCTION PUMPSCALE: NONE

BASE MOUNTED PUMPFINISHED FLOOR

4" HIGH CONCRETEHOUSEKEEPING PAD,EXTEND PAD 4" BEYONDPUMP ON ALL 4 SIDES

MOTOR

REDUCER (IF REQUIRED)

PRESSURE GAUGE W/ NEEDLEVALVE AND SNUBBER (TYP. OF 4)

THERMOMETER (TYP.)

MULTI-PURPOSE VALVE

FLOW METER FITTING (REFERTO SPECIFICATIONS FOR TYPE)

PUMP DISCHARGE PUMP SUCTION

SPRING TYPE VIBRATION ISOLATORWITH THRUST RESTRAINTS (TYP.)

DRAIN VALVE WITHHOSE END CONNECTION

PIPE PUMP BASE DRAINFULL SIZE TO NEARESTFLOOR DRAIN

ADJUSTABLE PIPELEG SUPPORT

SUCTION DIFFUSERWITH SCREEN

FLEXIBLE PIPECONNECTION (TYP.)

STRAINER W/ HOSE END DRAIN(NOTE: IF STRAINER ISPROVIDED ON BOILER ROOMPIPING PRIOR TO PUMP - THISVALVE MAY BE DELETED)

BUTTERFLY VALVEW/ MEMORY STOP

DIFFERENTIAL PRESSURESWITCH

STRUCTURE ABOVE

ANCHOR TO STRUCTUREABOVE (TYP.)

FILL PUMP BASE WITHNON-SHRINK GROUT

VIBRATION ISOLATOR -REFER TO SPECIFICATIONFOR TYPE (TYP.)

DP SWITCH

BUTTERFLY VALVE W/MEMORY STOPSUITABLE FOR DEADEND SERVICE ASSPECIFIED (TYP.)

AGA APPROVEDGAS COCK (TYP.)

EX 4"EX 4"

FULL SIZE DIRTLEG (TYP.)

COMBINATIONBALANCINGAND SHUT-OFFVALVE (TYP.)

FLEXIBLE PIPECONNECTION (TYP.)

TWO-WAYCONTROLVALVE (TYP.)

CHECKVALVE (TYP.)

UNION (TYP.)

HS

HR

PRESSURE GAUGEW/ NEEDLE VALVEAND SNUBBER (TYP.)

EX BOILER

DETAIL - EXISTING BOILER CONNECTIONSCALE: NONE SAMUEL TUCKER ES -

HVAC REPLACEMENT

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SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

DETAIL - TYPICAL RETURN / EXHAUST AIR DUCT DEVICE CONNECTIONSCALE: NONE

NOTE:

1. RETURN DUCT PERTINENT TO DUCTED RETURN SYSTEM(S) ONLY.

OR

DUCTWORK, SIZESPER FLOOR PLAN

MANUAL VOLUMEDAMPER WITHMEMORY STOP

2" MIN.

DUCTWORK PERFLOOR PLAN

DUCT WIDTH 4"LARGER THANDUCT CONNECTION

2" MIN. (THREE SIDES)

AIR DEVICE ASSCHEDULED

VOLUME DAMPERWITH MEMORY STOP

DUCT SIZESPER AIRDEVICE NECK

DETAIL - TYPICAL LOW PRESSURE BALANCING / VOLUMEDAMPER (DUCTS UP TO 12" HIGH)SCALE: NONE

NOTE:

1. FOR DUCTS UP TO 12" HIGH.

DAMPER REGULATOR-WITH LOCKING TYPEINDICATOR QUADRANT

3/8" SQUARE ROD WITHWASHER AT EACH END

20 GA DAMPER EDGEHEMMED 1/2" AS SHOWN

DAMPER ROD CLIP

PROVIDE BEARINGSAT BOTH ENDS(GRIND ROD ROUND)

DUCT

PROVIDE FOR EACH DAMPEREND 4"x4"x20 GAUGESUPPORTS RIVETED TO DUCT

20 GAUGE OFFSET QUADRANTMOUNTING BRACKET ONINSULATED DUCT ONLY

NOTE:

1. FOR DUCTS OVER 29" WIDE AND/OR OVER 12" HIGH.

20 GAUGE OFFSETQUADRANT MOUNTINGBRACKET ONINSULATED DUCT ONLY

20 GAUGE OPPOSED ACTIONDAMPERS - EDGES HEMMED 1/2" ASSHOWN (MAX. BLADE HEIGHT 12")

OPPOSED ACTIONLINKAGE ASSEMBLY

DAMPER ROD CLIP

PROVIDE BEARINGSAT BOTH ENDS(GRIND ROD ROUND)

3/8" SQUARE ROD WITHWASHER AT EACH END.

DUCT

PROVIDE FOR EACH DAMPEREND 4"x4"x 20 GAUGESUPPORTS RIVETED TO DUCT

DAMPER REGULATOR - WITHLOCKING TYPE INDICATORQUADRANT, ONE REGULATORFOR EACH TWO BLADES

MAX. 60"SEE NOTE 3 OVER 60"GALV. HANGERTHREADEDHANGER ROD

HANGERSTRAP

UNISTRUT ORANGLE IRON

1"

NOTES:

1. ON DUCTS OVER 48" WIDE, BOTTOM SHALL BE BRACED BY ANGLE, FOR CROSS SECTIONAREAS MORE THAN 8 SQ FT, DUCTS SHALL BE BRACED BY ANGLES ON ALL FOUR SIDES.

2. CUTTING AND PATCHING SHALL BE LIMITED TO A MINIMUM AS REQUIRED FOR PROPERINSTALLATION.

3. SUPPORTS SHALL BE SPACED AND SIZED AS PER SMACNA.

4. REFER TO ARCHITECTURAL DRAWINGS FOR THE EXACT CONSTRUCTIONS OF THESTRUCTURES ABOVE SUPPORTING DUCTS.

NOTES:

1. REFER TO ARCHITECTURAL DRAWINGS FOR EXACT ROOF CONSTRUCTION ANDTYPE.

ROOFPOLYCARBONATEBASE-ADHERE TO ROOF

STAINLESS STEELTHREADED RODS,WASHERS, NUTS ETC

LUBRICATED ROLLERSUPPORT-GALVANIZEDCONSTRUCTION

DETAIL - TYPICAL DUCTHANGER SUPPORTSCALE: NONE

DETAIL - TYPICAL LOW PRESSURE BALANCING / VOLUMEDAMPER (DUCTS OVER 29" WIDE AND/OR 12" HIGH)SCALE: NONE

DETAIL - TYPICAL CONDENSATE / REFRIGERANT / PIPESUPPORT ON ROOFSCALE: NONE

DETAIL - TYPICAL DUCT ROOF PENETRATIONSCALE: NONE

ROOF (REFER TO ARCHITECTURALAND STRUCTURAL DRAWINGS FORROOFING AND STRUCTURE DETAILS)

SUPPLY AIR/ RETURN AIR/ EXHAUST AIRDUCTWORK, REFER TO FLOOR PLANS FOR SIZES 1" THICK INTERNAL SOUND

LINING - AS INDICATED ON THECONTRACT DRAWINGS - NOTREQUIRED AT EXHAUST DUCTS

FURNISH & INSTALL WEATHERPROOF DUCT INSULATION (ONSUPPLY AND RETURN DUCTWORKONLY) PER SPECIFICATIONS

INSULATED ROOF CURB

SECURE DUCT TO CURBWITH STAINLESS STEELSHEET METAL SCREWS

DUCTWORK SHALL BESEALED TO FLASHING

TERMINATESLEEVE FLUSHWITH FINISHEDWALL SURFACES

SEAL OR CAULK SLEEVES THRU FIREWALLS IN A SMOKE TIGHT MANNER

PIPE AND INSULATION TO BE CENTERED INSLEEVE - DO NOT SUPPORT PIPE FROM SLEEVE

CONCEALED PIPING

PROVIDE FIRE RATED SLEEVE SYSTEM IN FIRERATED PARTITIONS (PER SPECIFICATIONS)

STANDARD WEIGHT STEEL PIPE SLEEVE OF SIZETO PASS PIPE AND INSULATION

FINISHED ESCUTCHEON PLATE - MOUNT FLUSH AGAINSTWALL AND OF SIZE TO COMPLETELY COVER OPENING

FINISHED WALL SURFACE (REFERTO ARCHITECTURAL DRAWINGSFOR WALL CONSTRUCTION

PIPING EXPOSED TO VIEW

NOTES:

1. PROVIDE PIPE SLEEVES AT ALL WALL PENETRATIONS.

2. REFER TO ARCHITECTURAL DRAWINGS FOR EXACT WALL CONSTRUCTIONS.

DETAIL - TYPICAL PIPE SLEEVE THRU INTERIOR WALLSCALE: NONE

1/2" MAX(TYP)

NOTES:

1. AT FIRE RATED PARTITIONS, ADD ADDITIONAL LAYER OF FIRE RESISTANT INSULATION AROUNDPENETRATION SO AS TO FILL CAVITY.

2. DUCT AND PIPE PENETRATIONS THRU CORRIDOR WALLS ABOVE THE CEILING ARE TO BE FIRE STOPPEDAROUND THE PENETRATION.

3. REFER TO ARCHITECTURAL DRAWINGS FOR WALL TYPES.

DETAIL - TYPICAL DUCT WALL PENETRATIONSCALE: NONE

STEEL FRAME OF ANGLE 1 14" x 114" x 18" AROUND DUCT PERIMETER

DUCT PENETRATIONSHOWN IS WHEREFIRE DAMPER IS NOTREQUIRED BY CODE.

PARTITION

DUCT

DETAIL - TYPICAL PIPE SUPPORT ON ROOFSCALE: NONE

NOTES:

1. CURB SHALL BE PREFABRICATED. MANUFACTURER SHALL BE THE PATE COMPANY OR ASAPPROVED EQUAL.

2. PROVIDE CROSS BRACING AND/OR INTERMEDIATE FRAMING MEMBERS AS REQUIRED.

SCREW

COUNTER FLASHING

SHEET METAL SCREW

WOOD NAILER

BASE SECTION

RAISED CANT

HEIGHT ASREQUIRED

SUPPORT ANGLE

FASTENER (TYP.)

CANT

ROOFSYSTEM

PIPE ANGLE SUPPORT

PIPE CLEVIS HANGER

PIPE

CLAMP

NEOPRENE PAD

REMOVABLECOUNTERFLASHING

14" TOPOF CURB

ROOFING UNDERANOTHER DIVISION

BLOCKING AS REQUIRED

2x4 PRETREATEDWOOD NAILER

3x3x1/4" HOTDIPPED GALVANIZEDSTEEL (TYPICAL)

DETAIL - TYPICAL CONCRETE HOUSEKEEPINGPAD ON EXISTING FLOOR SLABSCALE: NONE

ROUGH-IN EXISTINGSLAB SURFACE. APPLYEPOXY BONDING AGENT.

2"

CONCRETEHOUSEKEEPING PAD

4" LARGER THANEQUIPMENT ON ALL SIDES

1 1/2"4" MIN.

FINISHEDFLOOR

3/4" CHAMFER (TYP.)

2" ALL SIDES6x6 - W2.9 x W2.9 WWF

NOTES:

1. PROVIDE REBAR IN SIZES, QUANTITIES, AND CONFIGURATIONSAS RECOMMENDED BY THE STRUCTURAL ENGINEER. DETAIL - TYPICAL CONDENSING UNIT SUPPORT ON ROOF

SCALE: NONE

HEAT PUMP /CONDENSING UNIT

ANTI-VIBRATION PAD

3"x3" BASE

SHEET METAL COVERWITH RECEIVER FORCOUNTER-FLASHING

HIGH-DOMED, CAPPED,GASKETED FASTENERS

REMOVABLE SHEET METALCOUNTER-FLASHING

FLASHING MEMBRANE(ADHERE TO CURB)

SEALANT

WOOD CURBAND NAILERS

ROOF (REFER TO ARCHITECTURALAND STRUCTURAL DRAWINGS FORROOFING AND STRUCTURE DETAILS)

10" NOMINALFLASHING HEIGHT

REFRIGERANT PIPING DOWNTHROUGH PIPE CURB; SIZEDAS PER MANUFACTURER'SRECOMMENDATIONS.

CONDENSING/HEAT PUMPUNIT MOUNTED ONNEOPRENE PADS.

REFRIGERANT PIPINGTHROUGH PIPE CURB

OUTDOOR UNIT MOUNTED ONKINDORF-TYPE FRAMING

TURN DOWN AND SECURE TOSIDES OF ROOF CURB

WOOD BLOCKINGROOFING

ROOF ASSEMBLYBATT INSULATION

2x4 METAL STUD SUPPORTFRAMING (16" O/C) WITHINSULATION.

REFRIGERANT PIPING DNTO INDOOR UNIT

3/4" FIRE RATEDPLYWOOD

FLASHING

ROOF CURB

SCALE: NONE

DETAIL - ROOF MOUNTED CONDENSING UNIT INSTALLATION

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

MEDIUM PRESSURESUPPLY AIR DUCT

VARIABLE AIR VOLUME BOX

RE-HEAT COIL, REFER TO SCHEDULEFOR ADDITIONAL INFORMATION

1" DUCT ACOUSTICAL SOUND LINING,MINIMUM 5'-0" LONG AFTER BOX

VOLUME DAMPER (TYP.)V.A.V. BOX CONTROLLER - MAINTAIN NECREQUIRED CLEARANCE FOR SERVICE ACCESS

LOW PRESSURE DUCT / TO DIFFUSER

SPIN-IN FITTING/SQUARE TOROUND FITTINGOR SQUARE/RECTANGULARDUCTSUPPLY AIR DUCT, REFER TO FLOOR PLANS FOR SIZES

4-0" MIN./5'-0" MAX OFSTRAIGHT DUCT FULL SIZEOF V.A.V. BOX INLET

4'-0" MIN. BEFORE TAKE OFF OR ELBLOW

TRANSITIONTO V.A.V.BOX OPENING

DETAIL - TYPICAL VARIABLE AIR VOLUME BOX DUCT ASSEMBLYSCALE: NONE

AIR

FLOW

DETAIL - TYPICAL AHU CHILLED WATER COIL PIPINGDIAGRAM WITH THREE-WAY CONTROL VALVESCALE: NONE

CHS

CHR

COIL

THERMOMETER (TYP.)

PRESSURE GAGE W/NEEDLE VALVE ANDSNUBBER (TYP.)

3/4" HOSE ENDDRAIN VALVE W/CAP AND CHAIN

LOCATE UNION TOFACILITATE COIL REMOVAL

PRESSURE /TEMPERATUREPLUG (TYP.)

MANUAL AIR VENT

UNION (TYP.)

COMBINATION BALANCINGAND SHUT-OFF VALVE (TYP.)

STRAINER W/ HOSEEND DRAIN VALVE,W/ CAP AND CHAIN

REFER TO PLANS FOR PIPE SIZE

FLOW METER FITTING -VENTURI WITH PRESSUREAND TEMPERATURE PORTS

3-WAY VALVE (A.T.C)

NOTES:

1. REFER TO AHU SCHEDULE OR FLOOR PLANS FOR BRANCH PIPE SIZES.

2. PROVIDE DIE-ELECTRIC FITTING AT ALL COIL PIPING CONNECTIONS.

BUTTERFLY VALVEW/ MEMORY STOPS

V.T.HS

HR

HS

HR

AIRFLOW

DETAIL - TYPICAL AHU FREEZE PROTECTION / HEATING COILPIPING DIAGRAM WITH TWO-WAY CONTROL VALVE (ONE PUMP)SCALE: NONE

NOTES:

1. REFER TO AHU SCHEDULE OR FLOOR PLANS FOR COIL BRANCH PIPE SIZES.

2. PROVIDE DIE-ELECTRIC FITTING AT ALL COIL PIPING CONNECTIONS.

3. REFER TO PUMP SCHEDULE FOR PUMP CAPACITIES / CHARACTERISTICS.

BUTTERFLY VALVE W/MEMORY STOP (TYP.)

PRESSURE / TEMPERATURE PLUG (TYP.)

FLEXIBLE PIPE CONNECTION (TYP.)

FREEZE PROTECTION PUMP

COMBINATION BALANCINGAND SHUT-OFF VALVE (TYP.)

VENTURI FLOW METER WITHPRESSURE AND TEMPERATURE PORTS

UNION (TYP.)

3-WAY CONTROL VALVE

CHECK VALVE (TYP.)

MANUAL AIR VENT (TYP.)

THERMOMETER (TYP.)

PRESSURE GAGE W/ NEEDLEVALVE AND SNUBBER (TYP.)

BALL VALVE (TYP.)

3/4" HOSE END DRAIN VALVEW/ CAP AND CHAIN (TYP.)

STRAINER W/ HOSE END DRAINVALVE, W/ CAP AND CHAIN

V.T.

DETAIL - TYPICAL ROOF PIPE SUPPORT FOR REFRIGERANT PIPINGSCALE: NONE

SIDE VIEWEND VIEW

PIPE INSULATION

ROOF DECK (TYP.)

STEEL JOISTS

RS/RL PIPING

PROVIDE 1 5/8"W x 12"L CHANNEL STRUTWITH HOT DIPPED GALVANIZED COATING

PROVIDE PIPE STRAP - 1 1/4" WIDEWITH HOT DIPPED GALVANIZED COATING

PIPE STAND8" MINIMUM

STEEL JOISTS

FLASHING

ROOF, REFER TO ARCH.DWGS. FOR EXACTCONSTRUCTION

NOTES:

1. REFER TO ARCHITECTURAL DRAWINGS FOR ROOF TYPES / CONSTRUCTIONS.

2. COORDINATE FLASHING REQUIREMENTS WITH ARCHITECT.

3. COORDINATE ROOF OPENING SIZE AND LOCATION WITH STRUCTURALENGINEER.

4. FOR CAPACITIES OF FANS REFER TO FAN SCHEDULE.

BIRDSCREEN

FLASHING (UNDERANOTHER DIVISION)

ROOF

* GRAVITYBACKDRAFT DAMPER

MOTOR - BELT OR DIRECTDRIVE PER SPECIFICATIONS

CENTRIFUGAL POWERROOF VENTILATOR

FACTORY FURNISHED PREFABRICATEDINSULATED ACOUSTICAL CURB W/BUILT-IN CANT STRIP

REFER TO FLOOR PLANS FORCONTINUATION OF DUCTWORK

1/2" MESH BIRDSCREEN

DETAIL - TYPICAL CENTRIFUGAL ROOF

SCALE: NONE

MOUNTED DOWN-BLAST EXHAUST FAN DETAIL - TYPICAL KITCHEN GREASEHOOD UP-BLAST EXHAUST FANSCALE: NONE

NOTES:

1. INSTALLATION SHALL COMPLY WITH NFPA 96 AND HAVE A UL 762 RATING.

2. COORDINATE FLASHING REQUIREMENTS WITH ARCHITECT.

3. COORDINATE ROOF OPENING SIZE AND LOCATION WITH STRUCTURAL ENGINEER.

4. REFER TO ARCHITECTURAL DRAWINGS FOR ROOF TYPES / CONSTRUCTIONS.

5. FOR CAPACITIES OF FANS REFER TO FAN SCHEDULE.

MOTOR - BELT OR DIRECTDRIVE PER SPECIFICATIONS

WEATHERPROOFDISCONNECT SWITCH

FLEXIBLE WEATHERPROOFELECTRIC CABLE

HINGE

CURB MOUNTEDWEATHERPROOFJUNCTION BOX

SELF FLASHING PREFABRICATEDROOF CURB BY FAN MANUFACTURER

FLASHING

EXHAUST DUCT

GREASE COLLECTORHASP

GREASE CONNECTION TUBE

40" MIN. PER NFPAREQUIREMENTS

VENT TUBE

UP-BLASTEXHAUST FAN

RETAINING CHAIN

ROOF

PROVIDE G2 GREASE GUARD ROOFTOPDEFENSE SYSTEM AS MANUFACTUREDDAWG, ING. GREASE GUARD SYSTEMSHALL EXTEND 48" FROM FAN CURB(MIN.) ON ALL SIDES OR ASRECOMMENDED BY MANUFACTURER.

GREASE DEFLECTING FLASHINGCONSTRUCTED FROM 22 GAUGEGALVANIZED STEEL.

NOTES:

1. CLOSE VALVES TO COIL AND OPEN BY-PASS WHEN FLUSHING THE SYSTEM OR SERVICING THE COIL.

2. COIL CONNECTION LOCATION AND DIRECTION OF PIPING VARY, REFER TO FLOOR PLANS.

3. BRANCH PIPING SERVING VAV BOX RE-HEAT COILS SHALL CONTAIN AT LEAST TWO ELBOWSBETWEEN THE MAIN AND THE COIL TO ALLOW FOR MOVEMENT OF THE MAINS DUE TO THERMALEXPANSION.

4. REFER TO VAV BOX SCHEDULE OR FLOOR PLANS FOR BRANCH PIPE SIZES.

5. PROVIDE DIE-ELECTRIC FITTING AT ALL COIL PIPING CONNECTIONS.

DETAIL - TYPICAL VAV BOX HEATING COIL HEATING WATERPIPING DIAGRAM WITH THREE-WAY CONTROL VALVESCALE: NONE

HS

HR

COIL

FLOW METER FITTING -VENTURI WITH PRESSUREAND TEMPERATURE PORTS

UNION (TYP.)

MANUAL AIR VENT

MANUAL AIR VENT, LOCATEAT HIGH POINT (TYP. OF 2)

COMBINATION BALANCINGAND SHUT-OFF VALVE

3-WAY MODULATING CONTROL VALVE(MAXIMUM 10' PRESSURE DROP)

3/4" HOSE END DRAIN VALVEW/ CAP AND CHAIN (TYP.)

BALL VALVE (TYP.)

BYPASS (NORMALLY CLOSED),OPEN FOR SERVICING ANDSYSTEM FLUSHING

STRAINER W/ HOSE END DRAINVALVE, W/ CAP AND CHAIN

PRESSURE / TEMPERATUREPLUG (TYP.)

NORMALLY CLOSED

NORMALLY OPEN

BYPASS AND BALL VALVE

V.T.

HR

12 "

12" HIGH x 16"x16"STAINLESS STEELREMOVABLE TOP. TOP TOEXTEND 1 1/2" FURTHERTHAN SUPPORT CURB.

BATT INSULATION

STAINLESS STEEL SCREEN

PIPING TO UNIT

SEALANT

"DERBIGUM"FLASHING CARRYUNDER SHEET METAL

ROOFING

1/2" THICKRIGIDINSULATION

EXTENDPENETRATION CAPONE INCH LARGERTHAN CURB SIZE

DETAIL - ROOF PIPE PENETRATIONSCALE: NONE

COMBINATION BALANCINGAND SHUT-OFF VALVE (TYP.)

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

Dul

aney

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CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304

SOUND ATTENUATOR SCHEDULE

ATTENUATORDESIGNATION UNIT SERVED ATTENUATOR

TYPE

DUCT SIZEDIA x L

(IN)CFM MAX APD

(IN H₂O)

DYNAMIC INSERTION LOSS DB(OCTAVE BAND) GENERATED NOISE DB (OCTAVE BAND) BASIS OF DESIGN

NOTES

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 MFGR. MODEL

SA-1

RTU-2

CIRCULAR

14Ø x 24 500 0.02

4 6 12 22 46 52 50 22 30 25 20 15 10 10 10 10 PRICE CS 1,2

SA-2 CIRCULAR 4 6 12 22 46 52 50 22 30 25 20 15 10 10 10 10 PRICE CS 1,2

SA-3 CIRCULAR 4 6 12 22 46 52 50 22 30 25 20 15 10 10 10 10 PRICE CS 1,2

SA-4 CIRCULAR 4 6 12 22 46 52 50 22 30 25 20 15 10 10 10 10 PRICE CS 1,2

NOTES:

1: REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION AND ACCESSORIES ASSOCIATED WITH SOUND ATTENUATOR.

2: PROVIDE POLYMER FILM BAGGED LINER.

AIR DEVICE SCHEDULETYPE DUTY

CFM RANGE INLET NECKSIZE FACE SIZE MAX N.C.

MAX NECKVELOCITY

(FPM)

BASIS OF DESIGNNOTES

MIN MAX MFGR. MODEL

A SUPPLY 0 530 14"Ø 18"x18" <15 450 PRICE AND 1

NOTES:

1: REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION AND ACCESSORIES ASSOCIATED WITH AIR DEVICE.

SPLIT SYSTEM FCU SCHEDULEINDOOR UNIT OUTDOOR UNIT

UNITDESIGNATION UNIT LOCATION

SUPPLY FAN DX COOLING COILHEATPUMPHEAT INDOOR

UNITELECTRICAL

BASIS OF DESIGN UNITDESIGNATION LOCATION UNIT

SEER

TOTAL OUTDOOR UNIT ELECTRICAL WEIGHT(LBS)

BASIS OF DESIGNNOTES

DESIGN CFM TOTALMBH

SENSIBLE MBH MBH

MIN MAX V/∅/HZ MFGR. MODEL MCA M0CP RLA V/∅/HZ MFGR. MODEL

FCU-1 IT ROOM 0 1940 30 26.9 - 208-230/1/60 MITSUBISHI PKA-A30KA7 ACCU-1 ROOF 19.8 19 26 0.40 208-230/1/60 151 MITSUBISHI PUY-A30NHA7 1 THRU 6

NOTES:

1: PROVIDE CONDENSATE DISCHARGE PUMP. 4: PROVIDE LOW AMBIENT OPERATION (0°F).

2: REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION, AND ACCESSORIES ASSOCIATED WITH UNIT. 5: INSTALL A TXV METERING DEVICE

3: FACTORY MOUNTED HIGH AND LOW PRESSURE SWITCH WITH A TIME DELAY AND LOCK OUT. 6: FACTORY MOUNTED HARD START KIT ON ALL SINGLE PHASE DX UNITS.

EXHAUST FAN SCHEDULE

FANDESIGNATION AREA SERVED CFM ESP (IN

H₂0)

DRIVE

FAN TYPE HP BHP MOTORRPM

SOUNDLEVEL

(SONES)

ELEC. CHAR.(V/∅/HZ)

BASIS OF DESIGN

ACCESSORIES NOTESBELT (BD) /

DIRECT (DD) MFGR. MODEL

EF-1 EMR 202 150 0.5

DD

R.M.C. 1/15 0.03 1725 5.6 120/1/60

GREENHECK

G-VG A,B,C,D,E,F 1

EF-2 TOILET 2100 0.75 R.M.C. 3/4 0.58 1725 15.4 120/1/60 G-VG A,B,C,D,E,F 1

EF-3 TOILET 2250 0.75 R.M.C. 1 0.54 1200 12.7 208-230/1/60 G-VG A,B,C,D,E,F 1

EF-5 KILN 300 0.5 R.M.C. 1/10 0.07 1725 8.2 120/1/60 G-VG A,B,C,D,E,F 1

EF-7 TOILET 375 0.625 R.M.C. 1/10 0.08 1725 7.9 120/1/60 G-VG A,B,C,D,E,F 1

EF-8 HOOD 2250 1 R.M.C.U. 1 0.8 1725 12.4 208-230/1/60 CUE-VG A,B,C,D,E,F,G 1

EF-11 PENTHOUSE 1500 0.875 R.M.C. 1/2 0.41 1725 13.9 120/1/60 G-VG A,B,C,D,E,F 1

RF-3 AHU-3 5125 0.875 BD U.S. 1.5 1.2 1725 17.8 480/3/60 USF A,B,C,D,E,F 1

ACCESSORIES:

A: DISCONNECT SWITCH D: BIRDSCREEN G: UL 762

B: BACKDRAFT DAMPER E: ALUMINUM CONSTRUCTION

C: PREFAB ROOF CURB F: PROVIDE WITH FAN SPEED CONTROLLER

FAN TYPES:

U.S. = UTILITY SET R.M.C. = ROOF MOUNTED CENTRIFUGAL R.M.C.U. = ROOF MOUNTED CENTRIFUGAL UP BLAST

NOTES:

1: REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION, AND ACCESSORIES ASSOCIATED WITH FAN.

AIR COOLED CHILLER SCHEDULE

CHILLERDESIGNATION

(CH-_)CHILLER TYPE REFRIGERANT

TYPE

NOMINALCAPACITY

(TONS)

DESIGNCAPACITY

(TONS)

HYDRONIC CONDENSER COMPRESSORS UNIT TOTAL ELECTRICAL MINIMUM REQUIREDEFFICIENCY

UNITWEIGHT

(LBS)

UNITDIMENSIONS (L

x W x H)

SOUND CRITERIA

BASIS OF DESIGN

NOTESFLUIDTYPE

CHILLEDWATER

GPM

CHILLEDEWT (°F)

CHILLEDLWT (°F)

CHILLEDMAX WPD(FT H₂O)

FOULINGFACTOR

DESIGNAMBIENT

TEMP. (°F)

NUMBEROF

CIRCUITS

FAN R.L.A. (TYP.FOR ALL

CONDENSERFANS)

POWER(KW)

R.L.A (AMPS) (COMPRESSOR LETTER)POWER

(KW)MCA

(AMPS)MOCP

(AMPS)ELEC. CHAR.

(V/∅/HZ) IPLV REQUIREDMIN EER

MAXIMUM AHU RADIATED DB (OCTAVEBAND)

A B C D E F 1 2 3 4 5 6 7 8 MFGR. MODEL

CH-1 SCROLL 410A 241 229.8 WATER 560 53.8 44.0 13.4 0.0001 95.0 2 (14) 3.6 269.4 76 76 76 76 76 76 269.4 532 600 480/3/60 16.43 10.24 9688 328x99x88 98 98 98 95 96 90 90 86 DAIKIN AGZ241E 1 THRU 8

NOTES: CHILLER TYPES: DEFINITIONS:

1: REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION, ACCESSORIES ASSOCIATED WITH CHILLER, AND FOR CONTROL SEQUENCE. 5: CHILLER COMPRESSORS SHALL BE PROVIDED WITH SOLID STATE STARTER(S). SCREW EER = ENERGY EFFICIENCY RATIO

2: THE CHILLER SOUND PRESSURE SHALL BE EQUAL OR LESS THAN THE SCHEDULED VALUES. 6: PROVIDE INTEGRATION OF CHILLER CONTROLS WITH BAS. RECIPROCATING IPLV = INTEGRATED PART LOAD VALUE

3: DISCONNECT SWITCH FOR UNIT SHALL BE PROVIDED BY DIVISION 26. 7: PROVIDE CHILLER WITH FACTORY FURNISHED CONTROL PANEL. SCROLL NPLV = NON-STANDARD PART LOAD VALUE

4: CHILLER SHALL BE PROVIDED WITH FACTORY FURNISHED / INSTALLED COMPRESSOR SOUND ATTENUATION PACKAGE FOR ALL COMPRESSORS. 8: PROVIDE CHILLER EVAPORATION BARREL RATED TO 0°F.

VARIABLE AIR VOLUME TERMINAL SCHEDULE (w/ HYDRONIC HEATING COIL)

BOXDESIGNATION AREA SERVED

INLETSIZE(IN)

OUTLETSIZE (IN)

PRIMARY AIRCOOLING CFM

RANGES PRIMARYHEATING

(CFM)

PRIMARYAIR

STATICAPD

REHEAT COIL (HOT WATER) BASIS OF DESIGN

NOTES

MIN MAX MAX (INWC)

EATDB(°F)

LATDB(°F)

MBH EWT(°F)

LWT(°F) GPM

BRANCH PIPECONNECTION

SIZE (IN)

MAX WPD(FT H₂0)

MAX. APD(WET) (IN

WC)MFGR. MODEL

VAV-1 HEALTH 6"Ø 12x8 115 250 250 0.64

55 90

9.6

140

113 0.7

3/4"

0.08 0.11

PRICE

SDVQ5 1 THRU 4

VAV-2 WAITING/RECEPTION 8"Ø 12x10 215 450 450 0.54 17.1 119 1.67 0.48 0.21 SDVQ5 1 THRU 4

VAV-3 BOOK STORAGE 6"Ø 12x8 115 250 250 0.64 9.6 113 0.7 0.08 0.11 SDVQ5 1 THRU 4

VAV-4 ADMIN CORRIDOR 6"Ø 12x8 215 250 250 0.64 9.6 113 0.7 0.08 0.11 SDVQ5 1 THRU 4

VAV-5 PRINCIPAL 8"Ø 12x10 215 450 450 0.54 17.1 119 1.67 0.48 0.21 SDVQ5 1 THRU 4

VAV-6 CONFERENCE 8"Ø 12x10 215 450 450 0.54 17.1 119 1.67 0.48 0.21 SDVQ5 1 THRU 4

VAV-7 ASST. PRINCIPAL 6"Ø 12x8 115 250 250 0.64 9.6 113 0.7 0.08 0.11 SDVQ5 1 THRU 4

NOTES: VAV BOX TYPES:

1: REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION, AND ACCESSORIES ASSOCIATED WITH EACH VAV BOX. SDB: SINGLE DUCT BOX

2: ALL SUPPLY AIR DUCTWORK ON THE DISCHARGE SIDE SHALL BE SOUND LINED.

3: INSTALL BOXES SO THAT ACTUATORS AND ACCESS AREAS ARE MAINTAINED.

4: D.D.C. CONTROLLERS SHALL BE SHIPPED FOR FACTORY MOUNTING AND PRE-WIRING.

UNITDESIGNATION

HEATING COILS SOUND CRITERIAUNIT TOTALELECTRICAL

PRE-FILTER

FINALFILTER BASIS OF DESIGN

NOTES

HOT WATER HEATING COIL

MAXIMUM AHU RADIATED DB (OCTAVE BAND) MAXIMUM AHU DISCHARGE/INLET DB (OCTAVEBAND)

EATDB(°F)

LATDB(°F)

TOTALMBH

MAX.FACEVEL.

(FPM)

EWT(°F)

LWT(°F) GPM

FINSPERINCH

ROWSBRANCH PIPECONNECTION

SIZE (IN)

MAX.WPD

(FT H₂O)

MAX. APD(WET) (IN

WC)

ELEC. CHAR.(V/∅/HZ) MERV MERV MFGR. MODEL

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8

AHU-1 48 80 271 592 140 105 15.6 12 2 2 1.1 0.30 89 88 75 73 66 57 46 51 99 98 93 94 88 85 80 78 480/3/60 8 8

DAIKIN

CAH012GDAC 1 THRU 5

AHU-2 46 77 75 419 140 119 7.2 12 1 1 1.6 0.14 69 72 59 55 56 46 46 51 79 82 77 76 78 74 73 70 480/3/60 8 8 CAH006GDAC 1 THRU 5

AHU-3 33 81 270 569 140 119 26.0 12 2 2 3.5 0.27 74 76 68 63 60 50 46 51 84 86 86 84 82 78 78 73 480/3/60 8 8 CAH010GDAC 1 THRU 5

NOTES: UNIT TYPE:

1: REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION, ACCESSORIES ASSOCIATED WITH UNIT, AND FOR CONTROL SEQUENCE. CAV = CONSTANT AIR VOLUME

2: SUPPORT UNIT ON NEOPRENE VIBRATION PADS, SIZE AND LOCATIONS PER AHU MANUFACTURER'S RECOMMENDATIONS. VAV = VARIABLE AIR VOLUME

3: FAN TYPE: DWDI = DOUBLE WIDTH DOUBLE INLET AIR FOIL, VA = VANE AXIAL, PL = PLENUM AIR FOIL.

4: SUPPLY / RETURN FANS SHALL BE NEMA PREMIUM EFFICIENCY.

5: SUBSTITUTIONS FOR LOWER FAN MOTOR HP SHALL NOT BE ACCEPTABLE.

INDOOR CENTRAL STATION AIR HANDLING UNIT SCHEDULE (w/ CHILLED, HEATING, & PRE-HEAT WATER COILS)

UNITDESIGNATION AREA SERVED

UNITTYPE SUPPLY FAN OUTSIDE AIR CHILLED WATER COOLING COIL

CAV /VAV

DESIGNCFM ESP (IN

H₂O)TSP (IN

H₂0)MOTOR

HPMOTOR

BHPMOTOR

RPMVFD

(YES/NO) MIN CFM MAX CFM ECONOMIZER(YES/NO)

EAT LATTOTALMBH

SENSIBLEMBH

MAX.FACEVEL.

(FPM)

EWT(°F)

LWT(°F) GPM

FINSPERINCH

ROWSBRANCH PIPECONNECTION

SIZE (IN)

MAX.WPD(FT

H₂O)

MAX. APD(WET)

(IN WC)MAX DB (°F) WB (°F) DB (°F) WB (°F)

AHU-1 GYM

CAV

7600 1.00 3.24 7.5 7.12 2863 YES 1380 1380 YES 82 69 54 53 217 136 325 44 54 42.6 12 4 2.5 7.1 0.67

AHU-2 STAGE 2200 1.00 2.20 1.5 1.40 1494 YES 750 750 YES 84 69 53 53 110 73 387 44 54 21.6 10 6 2 7.4 0.50

AHU-3 CAFETERIA 5125 1.00 2.70 5.0 3.78 1131 YES 3180 3180 YES 87 72 55 54 286 177 536 44 54 58.3 11 6 2.5 11.3 0.88

KITCHEN MAKE-UP AIR UNIT SCHEDULEUNIT

DESIGNATION AREA SERVED

SUPPLY FAN UNIT TOTAL ELECTRICALSOUND

(SONES)WEIGHT

(LBS)

BASIS OF DESIGNNOTES

CFM ESP (INH₂O)

DRIVETYPE

MOTORHP BHP MOTOR

RPM MCA MOCP FLA ELEC. CHAR.(V/∅/HZ) MFGR. MODEL

MAU-1 KITCHEN 1125 .76 BELT 1 0.46 1469 14.5 25 11.6 120/1/60 16.3 242 FLOAIRE SA15D 1,2

NOTES:

1: REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION AND ACCESSORIES FOR UNIT.

2: PROVIDE SINGLE POINT ELECTRICAL CONNECTION TO MAU.

PUMP SCHEDULEPUMP DESIGNATION SERVICE PUMP TYPE VFD

(YES/NO) GPM FT. OF HEADPUMP MOTOR UNIT

ELECTRICAL BASIS OF DESIGNNOTES

HP BHP RPM V/∅/HZ MFGR. MODEL

P-3 HEATING WATER BASE MOUNTED YES 240 90 10 7.4 1800 480/3/60

B&G

E-1510-2EB 1,2,3

P-4 HEATING WATER BASE MOUNTED YES 240 90 10 7.4 1800 480/3/60 E-1510-2EB 1,2,3

P-6 FREEZE PROTECTION - AHU-1 INLINE YES 16 25 1/6 0.10 3300 120/1/60 PL-36 1,2,3

P-7 FREEZE PROTECTION - AHU-2 INLINE YES 8 25 1/6 0.10 3300 120/1/60 PL-36 1,2,3

P-8 FREEZE PROTECTION - AHU-3 INLINE YES 26 25 2/5 0.33 3250 120/1/60 PL-55 1,2,3

P-9 FREEZE PROTECTION - AHU-4 INLINE YES 30 25 2/5 0.33 3250 120/1/60 PL-55 1,2,3

P-10 FREEZE PROTECTION - AHU-5 INLINE YES 30 25 2/5 0.33 3250 120/1/60 PL-55 1,2,3

NOTES:

1: REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION AND ACCESSORIES ASSOCIATED WITH PUMP. 3: PROVIDE PUMP MOTOR SUITABLE FOR VARIABLE SPEED DRIVE OPERATION.

2: PROVIDE PREMIUM EFFICIENCY MOTORS.

SAMUEL TUCKER ES -HVAC REPLACEMENT

901

Dul

aney

Val

ley

Roa

d, S

uite

301

Pho

ne: 4

10-4

94-1

111

Tow

son,

MD

212

04

Fax

: 410

-494

-111

2

KIB

AR

TCO

NSUL

TING

ENGI

NEER

S

CONSTRUCTIONDOCUMENT

SUBMISSION10/28/2020

435 FERDINAND DAY DR.

ALEXANDRIA, VA 22304