50194091 - Cliffdale Library Boiler Replacement - Drawings.pdf

Sheet Number Sheet Title

G-001 COVER SHEET

G-002 BUILDING CODE SUMMARY

PME001 SYMBOLS ABBREVATIONS & GENERAL NOTES

PMED111 DEMOLITION PLAN

PME111 NEW WORK PLAN

PME501 DETAILS

PME601 SCHEDULES

PME701 CONTROLS

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2610 Wycliff Road Suite 410 Raleigh, NC 27607-3073 919.881.9939 NC License No. F-0929

Dewberry Engineers Inc.

KRC

TW

WLH

G-001

COVER SHEET

MEP:

6882 CLIFFDALE RD, FAYETTEVILLE, NC 28314

CLIFFDALE LIBRARY BOILER REPLACEMENT

CUMBERLAND COUNTY

CAMPUS MAP

OWNER:

VICINITY MAP CONTACTS

DRAWING INDEX

DEWBERRY ENGINEERS, INC.

2610 WYCLIFF ROAD

SUITE 410

RALEIGH, NC 27607

CONTACT:

Weston Hockaday, PE, P: 984.255.7051

E-MAIL:

whockaday@dewberry.com

CUMBERLAND COUNTY

ENGINEERING DEPARTMENT

130 GILLESPIE ST,

FAYETTEVILLE, NC 28301

CONTACT:

ABU-BAKR FARRAKHAN

P: 910.678.7813

E-MAIL:

afarrakhan@cumberlandcountync.gov

REMOVE AHU DUCTWORK, PIPING, CONDUIT, PNEUMATIC TUBING, AND FIRE ALARM AS REQUIRED

TO CREATE ACCESS OPENING FOR BOILER AND PUMP RIGGING THROUGH PENTHOUSE

MECHANICAL ROOM. DEMOLISH CONDUITS AND PNEUMATIC TUBING THAT ARE ABANDONED

BLOCKING ACCESS. RELOCATE CONDUIT AND PNEUMATIC PIPING STILL IN USE THAT ARE

BLOCKING ACCESS. PROVIDE CRANE AND RIGGING UP TO ROOF AND THROUGH PENTHOUSE.

PROVIDE NEW AHU DUCTWORK AND PIPING WITH INSULATION INSTALLATION AFTER NEW BOILER

RIGGED INTO PLACE TO RETURN AIR AND CHILLED WATER SYSTEM TO NORMAL OPERATION AND

OTHER ITEMS MAY BE REUSED. PREFABRICATE WHERE POSSIBLE TO REDUCE OUTAGE

DURATION.

REMOVE 1,000 MBTU NATURAL GAS BOILER.

REMOVE BUILDING HEATING HOT WATER PUMP LOCATED IN THE PENTHOUSE MECHANICAL

ROOM.

REMOVE EXISTING HEATING HOT WATER AND CHILLED WATER PLANT SYSTEM DIGITAL JCI

METASYS DX9100 CONTROLLER. AHU CONTROLLERS AND PNEUMATIC SYSTEM TO REMAIN FOR

OPERATION OF AHU CONTROL VALVES.

PROVIDE 1000 MBTU NATURAL GAS HIGH EFFICIENCY CONDENSING BOILER WITH INTEGRAL

PUMP TO FIT INTO EXISTING SPACE IN PENTHOUSE. PROVIDE MANUFACTURER STARTUP.

PROVIDE NEW STEEL NATURAL GAS PIPING WITH PRESSURE AND YELLOW PAINT LABELING AND

NEW GAS REGULATORS TO NEW BOILER.

PROVIDE NEW STAINLESS-STEEL VENT AND COMBUSTION AIR INTAKE THROUGH EXISTING

PENTHOUSE BOILER VENT ROOF CURB PENETRATION. UTILIZE DOUBLE WALL VENT WHERE

ACCESSIBLE IN PENTHOUSE. PROVIDE NEW FLASHING ON EXISTING ROOF CURB FOR NEW

PENETRATIONS.

PROVIDE NEW ELECTRICAL CONNECTIONS TO BOILER AND PUMPS. BOILER PUMP TO BE

POWERED AND CONTROLLED BY BOILER.

PROVIDE NEW BASE MOUNTED END SUCTION BUILDING HOT WATER PUMP WITH NEW VARIABLE

FREQUENCY DRIVE (VFD) WITH DISCONNECT IN LOCATION OF EXISTING MOTOR STARTER

DISCONNECT. PROVIDE PUMP ALIGNMENT WITH REPORT AFTER INSTALLATION.

PROVIDE NEW HEATING HOT WATER PIPING WITH FIBERGLASS INSULATION TO ACCOMMODATE

NEW BOILERS AND PUMP SYSTEM.

PROVIDE NEW AIR/DIRT SEPARATOR (AS), EXPANSION TANK (ET), MAKEUP WATER (MW),

PRESSURE REDUCING VALVE, SYSTEM FLUSHING, AND CHEMICAL TREATMENT (CHEM) FOR HOT

WATER SYSTEM.

PROVIDE NEW BUILDING AUTOMATION SYSTEM PLANT CONTROLLER FOR COMPLETE PLANT

SYSTEM INCLUDING BUT NOT LIMITED TO AIR COOLED CHILLER, CHILLER PUMP, BOILER, AND

BOILER BUILDING PUMP. PROVIDE NEW CONTROL WIRING TO NEW BOILER AND PUMP. PROVIDE

NEW WIRING TO ALL PUMP STARTERS AND VARIABLE FREQUENCY DRIVES. PROVIDE NEW

SENSORS AND RELAYS. INCLUDE RELAYS WITH HOA SWITCH FOR EXISTING STARTERS WITHOUT

HOA SWITCH. SEE SCHEMATIC FOR POINTS AND SEQUENCING TO BE PROVIDED. INTEGRATE

NEW CONTROLLER INTO COUNTYWIDE BUILDING AUTOMATION SYSTEM WITH GRAPHIC,

TRENDING, AND ALARMS. EXISTING CONTROL PANEL MAY BE REUSED IF 3RD PARTY LISTED

ASSEMBLY SIMILAR TO UL.

PROVIDE NEW EMERGENCY SHUTOFF SWITCH AND HARDWIRE FOR BOILER SHUTDOWN.

PROVIDE HYDRONIC TESTING ADJUSTING, AND BALANCING FOR BOILER AND PUMPS. PROVIDE

TAB REPORT.

PROVIDE TWO PIECE REMOVABLE COVER FOR MECHANICAL ROOM PENTHOUSE DOOR LOUVER.

LOUVER IS NO LONGER REQUIRED FOR DEMOLISHED BOILER ROOM COMBUSTION AIR INTAKE

BUT MAY BE REMOVED FOR THERMOSTAT CONTROLLED PENTHOUSE EXHAUST FAN MAKEUP IF

NEEDED.

CONTRACTOR TO INCLUDE PERMITTING COSTS.

ALTERNATE 1 - PREFERRED BRAND CONTROLS - JOHNSON CONTROLS INC

ALTERNATE 2 - PREFERRED BRAND BOILER - REILLO

PROVIDE MULTIPLE WORK MOBILIZATIONS AND STAGING FOR DEMOLITION AND INSTALLATION OF

EQUIPMENT, PIPING, CONTROLS, AND ELECTRICAL AS REQUIRED TO MEET THE OWNER OUTAGE

REQUIREMENTS.

ACCESS AND RIGGING SCOPE OF WORK RESULTING IN WHOLE BUILDING AHU AND COOLING

OUTAGE MUST BE LIMITED TO LESS THAN 2 DAY OUTAGE DURING OFF HOURS, WEEKEND OR

HOLIDAY PERIOD DURING MODERATE OUTDOOR TEMPERATURES AND DEWPOINT (60F TO 80F).

BOILER REPLACEMENT SCOPE OF WORK RESULTING IN LOSS OF HEATING MUST BE LIMITED TO

WEEKDAYS DURING MODERATE OUTDOOR TEMPERATURES DURING COOLING SEASON FROM 65F

TO 80F AND DEWPOINT BELOW 55F TO AVOID NEED FOR REHEAT/DEHUMIDIFICATION NEEDS.

CHILLER AND AIR HANDLERS MUST REMAIN ACTIVE.

PROJECT SCOPE

10/07/2026

10/07/2026

Docusign Envelope ID: BA62D07C-0566-83AC-82E8-2AF9FB156B34

./50194091 G-001 COVER SHEET.DWG#,G-001 COVER SHEET

./50194091 G-001 COVER SHEET.DWG#,G-001 COVER SHEET

./50194091 G-002 BUILDING CODE SUMMARY.DWG#,G-002 BUILDING CODE SUMMARY

./50194091 G-002 BUILDING CODE SUMMARY.DWG#,G-002 BUILDING CODE SUMMARY

./50194091 PME001 SYMBOLS ABBREVATIONS & GENERAL NOTES.DWG#,PME001 SYMBOLS ABBREVATIONS & GENERAL NOTES ./50194091 PME001 SYMBOLS ABBREVATIONS & GENERAL NOTES.DWG#,PME001 SYMBOLS ABBREVATIONS & GENERAL NOTES

./50194091 PMED111 DEMOLITION PLAN.DWG#,PMED111 DEMOLITION PLAN

./50194091 PMED111 DEMOLITION PLAN.DWG#,PMED111 DEMOLITION PLAN

./50194091 PME111 NEW WORK PLAN.DWG#,PME111 NEW WORK PLAN

./50194091 PME111 NEW WORK PLAN.DWG#,PME111 NEW WORK PLAN

./50194091 PME501 DETAILS.DWG#,PME501 DETAILS

./50194091 PME501 DETAILS.DWG#,PME501 DETAILS

./50194091 PME601 SCHEDULES.DWG#,PME601 SCHEDULES

./50194091 PME601 SCHEDULES.DWG#,PME601 SCHEDULES

./50194091 PME701 CONTROLS.DWG#,PME701 CONTROLS

./50194091 PME701 CONTROLS.DWG#,PME701 CONTROLS

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2610 Wycliff Road Suite 410 Raleigh, NC 27607-3073 919.881.9939 NC License No. F-0929

Dewberry Engineers Inc.

KRC

TW

WLH

G-002

BUILDING CODE

SUMMARY

10/07/2026

10/07/2026

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2610 Wycliff Road Suite 410 Raleigh, NC 27607-3073 919.881.9939 NC License No. F-0929

Dewberry Engineers Inc.

KRC

TW

WLH

PME001

SYMBOLS

ABBREVATIONS &

GENERAL NOTES

ABBREVIATIONS - MECHANICAL

THIS IS A MASTER ABBREVIATIONS LIST. SOME ABBREVIATIONS MAY NOT APPLY

TO THIS PROJECT.

(E) EXISTING

AC AIR CONDITIONING

ADJ ADJUSTABLE

AF AIRFLOW

AFF ABOVE FINISHED FLOOR

AHU AIR HANDLING UNIT

AI ANALOG INPUT

AO ANALOG OUTPUT

AS AIR SEPARATOR

ASHRA

E

AMERICAN SOCIETY OF HEATING,

REFRIGERATING, AND AIR-CONDITIONING

ENGINEERS

ATC AUTOMATIC TEMPERATURE CONTROL

ATV ATMOSPHERIC VENT

B BOILER

BAS BUILDING AUTOMATION SYSTEM

BHP BRAKE HORSEPOWER

BI BINARY INPUT

BO BINARY OUTPUT

BT BUFFER TANK

BTU BRITISH THERMAL UNIT

BTUH BRITISH THERMAL UNIT PER HOUR

CD CONDENSATE DRAIN

CFM CUBIC FEET PER MINUTE

CH CHILLER

CHWP CHILLED WATER PUMP

CO CARBON MONOXIDE

CO2 CARBON DIOXIDE

CONT CONTROLS, CONTINUED

CT COOLING TOWER

Cv VALVE COEFFICIENT

DB DRY BULB

DEG DEGREE

DI DIGITAL INPUT

DIA DIAMETER

DN DOWN

DO DIGITAL OUTPUT

DP DIFFERENTIAL PRESSURE

DPS DIFFERENTIAL PRESSURE (SENSOR)

DP DEW POINT

DWG DRAWING

EA EXHAUST AIR

EAT ENTERING AIR TEMPERATURE

ABBREVIATIONS - MECHANICAL

THIS IS A MASTER ABBREVIATIONS LIST. SOME ABBREVIATIONS MAY NOT APPLY

TO THIS PROJECT.

ECM ELECTRONICALLY COMMUTATED MOTOR

EF EXHAUST FAN

ELEC ELECTRICAL

ESP EXTERNAL STATIC PRESSURE

ET EXPANSION TANK

EWT ENTERING WATER TEMPERATURE

F DEGREES FAHRENHEIT

FD FIRE DAMPER OR FLOOR DRAIN

FLA FULL LOAD AMPS

FPM FEET PER MINUTE

FS FLOW SWITCH

FT FOOT/FEET

GA GAUGE

GAL GALLONS

GALV GALVANIZED

GC GENERAL CONTRACTOR

GPH GALLONS PER HOUR

GPM GALLONS PER MINUTE

GR GRAINS

H HUMIDIFIER OR HEIGHT

H2O WATER

HD HEAD

HP HORSEPOWER

HVAC HEATING, VENTILATION, AND AIR-CONDITIONING

HWB HOT WATER BOILER

HWT HEATING WATER TEMPERATURE

IN INCH

KW KILOWATT

L LOUVER

LAT LEAVING AIR TEMPERATURE

LBS POUNDS

LF LINEAR FEET

LWT LEAVING WATER TEMPERATURE

M MOTOR OR MOTORIZED DAMPER OR METER

MA MIXED AIR

MAT MIXED AIR TEMPERATURE

MBH 1,000 BRITISH THERMAL UNITS PER HOUR

MCA MINIMUM CIRCUIT AMPACITY

MFR MANUFACTURER

MOCP MAXIMUM OVERCURRENT PROTECTION

NC NORMALLY CLOSED OR NOISE CRITERIA

NO NORMALLY OPEN OR NUMBER

ABBREVIATIONS - MECHANICAL

THIS IS A MASTER ABBREVIATIONS LIST. SOME ABBREVIATIONS MAY NOT APPLY

TO THIS PROJECT.

NPSH NET POSITIVE SUCTION HEAD

NTS NOT TO SCALE

OA OUTDOOR AIR

OAT OUTDOOR AIR TEMPERATURE

OD OUTSIDE DIAMETER

P PRESSURE OR PRESSURE SENSOR

PD PRESSURE DROP

PH PHASE

PHC PREHEAT COIL

PRV PRESSURE REDUCING VALVE

PSI POUNDS PER SQUARE INCH

PSIA POUNDS PER SQUARE INCH ABSOLUTE

PSIG POUNDS PER SQUARE INCH GAUGE

QTY QUANTITY

R RADIUS, RISE, OR REMOVE

RA RETURN AIR

RAT RETURN AIR TEMPERATURE

RH RELATIVE HUMIDITY, REHEAT

RPM REVOLUTIONS PER MINUTE

SCH SCHEDULE

SEC SECONDS

SF SUPPLY FAN OR SQUARE FOOT

SP STATIC PRESSURE

SS SPLIT SYSTEM OR STAINLESS STEEL

T, TEMP TEMPERATURE

T&P TEMPERATURE AND PRESSURE

T-STAT THERMOSTAT

TON COOLING TONS (12,000 BTUH)

TSP TOTAL STATIC PRESSURE

TYP TYPICAL

UH UNIT HEATER

V, VOLT VOLTAGE

VEL VELOCITY

VFD VARIABLE FREQUENCY DRIVE

W WIDTH OR WATTS

W/ WITH

WB WET BULB

WC WATER COLUMN

WCU WATER CHILLING UNIT

WG WATER GAUGE

WPD WATER PRESSURE DROP

1. ALL WORK SHALL BE PERFORMED IN ACCORDANCE WITH APPLICABLE FEDERAL,

STATE AND LOCAL CODES AND REGULATIONS. MECHANICAL EQUIPMENT SHALL BE

SELECTED TO MEET OR EXCEED THE REQUIREMENTS OF THE ENERGY

CONSERVATION CODE. MECHANICAL WORK SHALL COMPLY WITH PROJECT

SPECIFICATIONS.

2. FURNISH AND INSTALL ALL INCIDENTAL ACCESSORIES REQUIRED TO MAKE THE

MECHANICAL WORK COMPLETE AND OPERATIONAL.

3. THESE DRAWINGS ARE DIAGRAMMATIC. EXACT EQUIPMENT LOCATIONS AND DUCT

AND PIPING ROUTING SHALL BE COORDINATED WITH THE BUILDING AND SITE

CONDITIONS. THE ACTUAL EQUIPMENT AND MINIMUM CLEARANCE DIMENSIONS

SHALL BE VERIFIED WITH THE SUPPLIERS.

4. EQUIPMENT, DUCTWORK, PIPING AND CONDUIT LAYOUT SHALL BE COORDINATED

WITH BUILDING COMPONENTS AND OTHER TRADES PRIOR TO INSTALLATION. THE

SYSTEM SHALL BE NEATLY ARRANGED TO MAXIMIZE SPACE. MAINTAIN MINIMUM

EQUIPMENT AND DEVICE MAINTENANCE CLEARANCES. DEVICES SHALL BE READILY

MAINTAINABLE. METERS AND GAGES SHALL BE ORIENTED FOR BEST VIEW.

INSTALLED MATERIALS NOT COORDINATED SHALL BE REMOVED AND REINSTALLED

AT NO ADDITIONAL COST TO THE OWNER.

5. WALL-MOUNTED CONTROL SENSORS SHALL BE INSTALLED AT 48-INCHES ABOVE THE

FLOOR TO THE TOP OF BACK-BOX. COORDINATE EXACT LOCATIONS WITH LIGHT

SWITCHES. WHEN BOTH ARE INDICATED ADJACENT TO A DOOR, LOCATE THE

SWITCH CLOSEST TO THE DOOR AND THE SENSOR WITHIN 12-INCHES OF THE

SWITCH.

6. CONTROL AND ALARM DEVICES SHALL BE INSTALLED IN BACK-BOXES WITHIN NEW

AND EXISTING WALLS. SURFACE-MOUNTED CONDUIT AND RACEWAY WILL NOT BE

ACCEPTED EXCEPT FOR EXISTING SOLID CONCRETE WALLS. DEVICE BACK-BOXES

IN FIRE-RATED WALLS SHALL HAVE FIRESTOP PUTTY PADS OR EQUIVALENT

UL-LISTED INSTALLATION.

7. HVAC PIPING SHALL BE NO LESS THAN 3/4-INCH.

8. ALL MOTORIZED EQUIPMENT SHALL BE CONNECTED TO DUCTWORK OR PIPING WITH

FLEXIBLE CONNECTIONS.

9. ROOF MODIFICATIONS AND REPAIRS SHALL MEET THE REQUIREMENTS OF THE ROOF

WARRANTY.

10. EXTEND POWER CONDUIT AND WIRING FROM DEDICATED POWER SOURCES TO

CONTROL EQUIPMENT AND DEVICES. COORDINATE POWER SOURCES WITH

ELECTRICAL CONTRACTOR.

11. MAINTAIN MINIMUM 36-INCH CLEARANCE FOR 120/208V POWER OR 42-INCH

CLEARANCE FOR 277/480V POWER AS REQUIRED BY THE NATIONAL ELECTRIC CODE

FOR ELECTRICAL EQUIPMENT AND TO PROVIDE MAINTENANCE ACCESS.

12. COORDINATE ALL CLEARANCES WITH OTHER TRADES. ENSURE ACCESS DOORS

CAN BE OPENED FULLY AND ALL VALVES, DAMPERS AND DEVICES CAN BE EASILY

REACHED AND ACTUATED.

13. FIELD VERIFY EXACT PIPING SIZES AND FLOW DIRECTIONS PRIOR TO CONNECTING

TO PIPING SYSTEM.

14. SCHEDULE ALL SERVICE DISRUPTIONS AND SHUTDOWNS WITH THE OWNER NO LESS

THAN 2 WEEKS IN ADVANCE. SHUT DOWNS IMPACTING CHILLED WATER SYSTEM

SHALL BE SCHEDULED OVERNIGHT TO MINIMIZE IMPACT TO LIBRARY HOURS.

MECHANICAL GENERAL

NEW WORK NOTES

1. VERIFY PROJECT SITE EXISTING CONDITIONS PRIOR TO BID. EXISTING CONDITIONS

INDICATED IN THESE DOCUMENTS ARE APPROXIMATE AND DO NOT INCLUDE EVERY

COMPONENT.

2. RECORD EXISTING CONDITIONS PRIOR TO THE START OF WORK. REPAIR DAMAGES

RESULTING FROM PROJECT WORK.

3. COORDINATE MATERIALS TO BE RETAINED BY THE OWNER PRIOR TO THE START OF

DEMOLITION WORK. RETAINED MATERIALS SHALL BE DELIVERED TO A POINT

DESIGNATED BY THE OWNER WITHIN A 10-MILE RADIUS OF THE PROJECT SITE.

PROPERLY DISPOSE OF ALL REMAINING DEMOLITION MATERIALS. COMPLY WITH

MATERIAL RECYCLING REQUIREMENTS. DO NOT ABANDON IN PLACE ANY ITEMS

IDENTIFIED TO BE REMOVED UNLESS OTHERWISE NOTED.

4. THE SCOPE OF DEMOLITION FOR ITEMS TO BE REMOVED INCLUDES ASSOCIATED

SUPPORTS, POWER CONNECTIONS, CONTROLS, ETC.

5. PERFORM ALL DEMOLITION INDICATED INCLUDING THAT REQUIRED TO INSTALL NEW

WORK. REMOVE AND REINSTALL MATERIALS TO REMAIN AS NEEDED WHERE

REQUIRED TO PERFORM DEMOLITION OR TO INSTALL NEW WORK. REPAIR DAMAGED

SURFACES TO MATCH EXISTING ADJACENT SURFACES.

6. REMOVE DUCT, PIPING AND CONDUIT BACK TO POINTS INDICATED. PREPARE OPEN

ENDS FOR CONNECTION TO NEW WORK INDICATED OR CAP.

MECHANICAL GENERAL

DEMOLITION WORK NOTES

ECCENTRIC TRANSITION

CONCENTRIC TRANSITION

RADIUS OFFSET (IN THE VERTICAL)

MITERED OFFSET (IN THE VERTICAL)

RADIUS ELBOW

MITERED ELBOW WITH TURNING VANES

SUPPLY DUCT

RETURN AIR DUCT

EXHAUST AIR DUCT

FLEX DUCT

DEMOLITION DUCTWORK OR EQUIPMENT

EXISTING DUCTWORK OR EQUIPMENT

NEW DUCTWORK OR EQUIPMENT

SYMBOL DESCRIPTION

HVAC SYMBOLS

CARBON MONOXIDE SENSOR

CARBON DIOXIDE SENSOR

OXYGEN SENSOR

TEMPERATURE SENSOR

HUMIDITY SENSOR

EMERGENCY POWER OFF SWITCH (E-STOP)

MANUAL MOTOR STARTER, FRACTIONAL HORSEPOWER

(SEE STARTER SCHEDULE FOR SIZE, ETC.)

CONTROLS

HVAC SYMBOLS CONTINUED

H

T

O2

CD

CO

M

24x24

DROPRISE

DROPRISE

DROPRISE

NON-FUSIBLE SAFETY SWITCH

FUSIBLE SAFETY SWITCH

COMBINATION MOTOR STARTER/SAFETY SWITCH,

ENCLOSED CIRCUIT BREAKER

VARIABLE FREQUENCY DRIVE (VFD)

DISCONNECT SWITCH

(FURNISHED BY OTHERS)

SYMBOL DESCRIPTION

BALL VALVE

STOP VALVE

3-WAY VALVE

BALANCING VALVE AUTOMATIC

BACKWATER VALVE

BUTTERFLY VALVE

CHECK VALVE

GATE VALVE

GLOBE VALVE

PIPE TURN UP

PIPE TURN DOWN

PIPE BOTTOM TAKE OFF

PIPE TOP TAKE OFF

PIPE CAP OR PLUG

PIPE UNION

AF

MECHANICAL PIPING SYMBOLS

PIPE GUIDE

BALANCING VALVE MANUAL

AV ATMOSPHERIC VENT

BBD BOILER BLOW DOWN

CA COMPRESSED AIR

CD CONDENSATE DRAIN

D DRAIN

CHWR CHILLED WATER RETURN

CHWS CHILLED WATER SUPPLY

HWR HEATING WATER RETURN

HWS HEATING WATER SUPPLY

MU MAKEUP WATER

NG NATURAL GAS

MECHANICAL PIPING SYSTEMS

SYMBOL DESCRIPTION

T

AFMS

FS

ES

HL

BASN

BAS

AI AO DI DO

R

VFD

STR

EP

EPT

PRESSURE REDUCING VALVE

BACK FLOW PREVENTER

TRIPLE DUTY

RELIEF (R) OR SAFETY (S) VALVE

PRESSURE GAGUE

TEMPERATURE GAUGE

TEMPERATURE SENSOR

DIFFERENTIAL PRESSURE SENSOR

MAGNEHELIC GAUGE

CURRENT TRANSDUCER (SENSOR)

AIR FLOW MONITORING STATION

FLOW SWITCH

END SWITCH

HUMIDITY - HIGH LIMIT SWITCH

NETWORK POINT FOR BAS

NETWORK BUILDING AUTOMATION SYSTEM CONTROL PANEL

DDC CONTROL POINTS

TRANSFORMER

RELAY

VARIABLE FREQUENCY DRIVE

STARTER

ELECTRONIC OR ELECTRIC TO PNEUMATIC SWITCH

ELECTRONIC OR ELECTRIC TO PNEUMATIC TRANSDUCER

R/S

PRV-1

VFD

CT

DP

MECHANICAL SCHEMATIC SYMBOLS

DESIGNATIONS

"AI" = ANALOG INPUT

"AO" = ANALOG OUTPUT

"DI" = DIGITAL INPUT

"DO" = DIGITAL OUTPUT

GAUGES/SENSORS

PIPE ACCESSORIES & SPECIALTIES

PNEUMATIC SYMBOLS

ELECTRONIC CONTROLS

AV

FLOW METER, INDICATE IF RATE OR TOTALING & UNITS

FLOW INDICATOR

FLEXIBLE CONNECTOR

AIR VENT, MANUAL

AIR VENT, AUTOMATIC

BTU METER, INDICATE IF RATE OR TOTALING & UNITS

UNIT/TIME

FM

UNIT/TIME

BTU

SUCTION DIFFUSER

FLOW ARROW

REDUCER CONCENTRIC

REDUCER ECCENTRIC STRAIGHT INVERT

REDUCER ECCENTRIC STRAIGHT CROWN

PT PORT (PEETS PLUG)

FLANGED CONNECTION

VALVES

BALL

THREE WAY

BUTTERFLY

GATE

END CAP

PIPE UNION

STRAINER, W/ OR W/ OUT VALVE.

STOP (HANDLE OPTIONAL)

CHECK

GLOBE

T TEMPERATURE SENSOR

STANDARDS DETAILING SYMBOLS

SYMBOL DESCRIPTION

SHEET REF.

PLAN / DETAIL

REF.

SECTION REF.

SHEET REF.

BUILDING / WALL

SECTION

SIM

SCALE:

VIEW TITLEVIEW NAMEVIEW DESIGNATION

VIEW SCALE

LEVEL NAME

LEVEL ELEVATION

GRID NUMBER

OR LETTER

GRID LINE

INDICATES

PLAN NORTH

INDICATES

TRUE NORTH

NORTH INDICATOR

ROOM NUMBER

ROOM TAG

REVISION NUMBER REVISION TAG

REVISION CLOUD

KEYNOTE TAG

(PER SHEET NUMBERS)

SPOT ELEVATION

SYMBOL

POINT OF

CONNECTION

POINT OF

DISCONNECTION

ELEVATION AT

POINT INDICATED

1' - 0"

Space Name

A

FIRST FLOOR

100' - 0"

1 View Name 1/8" = 1'-0"

A-101

A-101

AREA TO BE

ENLARGED

CALLOUT

LEVEL LINE

LINETYPES

BACKGROUND

EXISTING

DEMOLITION

NEW

FUTURE

HIDDEN/UNDER

OBSTRUCTION

WIRES DESCRIPTION

LC-1-1

HOME RUN. NUMERALS INDICATE PANELBOARD AND

CIRCUIT NUMBERS.

INDICATES CIRCUIT CONTINUATION

INDICATES CONDUIT RISER UP

INDICATES CONDUIT RISER DOWN

CIRCUIT SYMBOLS

SWBD1

WALL MOUNTED PANEL

RECESSED PANEL

POWER SYMBOLS

SYMBOL DESCRIPTION

JUNCTION BOX

C

EI

LI

N

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TD

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DUPLEX OUTLETS

EQUIPMENT CONNECTION

MANUAL MOTOR STARTER, FRACTIONAL HORSEPOWER (SEE

STARTER SCHEDULE FOR SIZE, ETC.)

NON-FUSIBLE SAFETY SWITCH

UTILITY METER

SUBSCRIPTS

"GF" = GROUND FAULT

"WP" = WEATHERPROOF BOX

"WR" = WEATHER RESISTANT

FUSIBLE SAFETY SWITCH

COMBINATION MOTOR STARTER/SAFETY SWITCH,

ENCLOSED CIRCUIT BREAKER

VARIABLE FREQUENCY DRIVE (VFD)

ELECTRICAL EQUIPMENT/GEAR

SIZE, TYPE, AND MOUNTING AS SHOWN AND/OR NOTED.

POWER DISTRIBUTION

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1. ELECTRICAL PLANS ARE GENERALLY DIAGRAMMATIC IN NATURE AND DO NOT CONVEY ALL

DETAILS REQUIRED FOR A COMPLETE INSTALLATION. HOWEVER, THESE PLANS SHALL BE

FOLLOWED AS CLOSELY AS POSSIBLE FOR GENERAL ARRANGEMENT AND LOCATION OF

EQUIPMENT. REFER TO ARCHITECTURAL PLANS FOR EXACT LOCATIONS, DIMENSIONS AND

MOUNTING METHODS. CONTRACTOR SHALL VERIFY ALL DIMENSIONS PRIOR TO COMMENCING

WORK. CONTRACTOR SHALL VERIFY STRUCTURAL AND FINISH CONDITIONS PRIOR TO

COMMENCING WORK. CONTRACTOR SHALL ARRANGE WORK TO MEET THESE CONDITIONS AND

PROVIDE SUCH EQUIPMENT AND ACCESSORIES AS MAY BE REQUIRED. IN THE EVENT OF A

CONFLICT, DEVIATION OR DISCREPANCY FOUND WITHIN THE PLANS OR SPECIFICATIONS,

CONTRACTOR SHALL PROVIDE WRITTEN NOTIFICATION TO ENGINEER OF RECORD FOR

CLARIFICATION PRIOR TO COMMENCING WORK.

2. ALL WORK SHALL BE PERFORMED IN ACCORDANCE WITH THE PROJECT SPECIFICATIONS,

MANUFACTURERS' RECOMMENDED INSTALLATION PROCEDURES, THE AMERICANS WITH

DISABILITIES ACT, ANSI A117.1, NEC, NFPA AND ALL OTHER APPLICABLE LOCAL AND STATE

CODES AS ADOPTED AND MODIFIED BY THE AUTHORITIES HAVING JURISDICTION.

3. CONTRACTOR SHALL LABEL ALL COVERPLATES, EQUIPMENT, JUNCTION BOXES, AND PULL

BOXES WITH CIRCUIT AND PANEL DESIGNATIONS. REFER TO DETAILS AND SPECIFICATIONS

FOR SPECIFIC LABEL AND IDENTIFICATION REQUIREMENTS.

4. CONTRACTOR SHALL PROVIDE NEW, TWO COLUMN, TYPED, COMPLETED AND REMOVABLE

DIRECTORIES INDICATING CIRCUIT DESCRIPTIONS AND ROOM NUMBERS (AS INDICATED BY

FINAL ROOM SIGNAGE), FOR ALL AFFECTED CIRCUITS WITHIN ELECTRICAL DISTRIBUTION

EQUIPMENT. ALL SPACES SHALL BE INDICATED AS SUCH. ALL SPARES SHALL BE INDICATED AS

SUCH AND PLACED IN THE "OFF" POSITION.

5. MINIMUM RACEWAY SIZE OF 3/4", UNLESS NOTED OTHERWISE.ALL ELECTRICAL CONDUCTORS, EQUIPMENT AND TERMINALS SHALL BE 75°C RATED UNLESS NOTED OTHERWISE. MINIMUM

CONDUCTOR SIZE OF #12AWG, COPPER, THHN/THWN, FOR BRANCH CIRCUITS, UNLESS NOTED

OTHERWISE.

6. ALL RACEWAYS SHALL BE INSTALLED CONCEALED ABOVE CEILINGS, WITHIN WALLS EXCEPT

WITHIN UNFINISHED SPACES AND ON CEILINGS OF AREAS WITH EXPOSED STRUCTURE. WITHIN

PUBLIC SPACES, EXPOSED RACEWAY SHALL BE SURFACE MOUNT RACEWAY THAT IS FACTORY

OR FIELD PAINTED TO MATCH ADJACENT STRUCTURE.

7. ALL CONDUITS SHALL BE ROUTED PARALLEL OR PERPENDICULAR TO BUILDING STRUCTURE.

ALL CONDUITS ROUTED IN PARALLEL SHALL UTILIZE CONCENTRIC BEND RADII FOR ALL TURNS.

8. ALL EMPTY RACEWAYS SHALL BE PROVIDED WITH PULL STRINGS INSTALLED PER

SPECIFICATIONS.

9. ALL EXPOSED RACEWAY ENDS SHALL BE PROVIDED WITH PLASTIC BUSHINGS.

10. ALL BRANCH AND FEEDER CIRCUITS SHALL ORIGINATE FROM PANELS AND SERVE DEVICES AND

EQUIPMENT AS INDICATED ON PLANS AND SCHEDULES. IN THE EVENT OF A CONFLICT,

DEVIATION OR DISCREPANCY, CONTRACTOR SHALL PROVIDE WRITTEN NOTIFICATION TO

ENGINEER OF RECORD FOR CLARIFICATION PRIOR TO COMMENCING WORK.

11. ALL BRANCH CIRCUITS SHALL HAVE A DEDICATED NEUTRAL CONDUCTOR, UNLESS NOTED

OTHERWISE. THE USE OF A COMMON NEUTRAL FOR MULTIPLE BRANCH CIRCUITS IS STRICTLY

PROHIBITED.

12. ALL RACEWAYS CONTAINING A FEEDER OR BRANCH CIRCUIT SHALL BE PROVIDED WITH AN

INSULATED EQUIPMENT GROUNDING CONDUCTOR. FOR RACEWAYS CONTAINING MORE THAN

ONE BRANCH CIRCUIT, SIZE OF EQUIPMENT GROUNDING CONDUCTOR SHALL BE BASED ON THE

LARGEST CIRCUIT'S OVERCURRENT PROTECTIVE DEVICE.

13. ORIENT VERTICALLY MOUNTED RECEPTACLES WITH GROUND PIN UP. ORIENT HORIZONTALLY

MOUNTED RECEPTACLES WITH GROUND PIN TO LEFT (NEUTRAL UP).

GENERAL NOTES - ELECTRICAL

1. NEW WORK SHOWN BOLD AND CONTINUOUS. EXISTING TO REMAIN WORK SHOWN LIGHT AND

CONTINUOUS.

2. NOT ALL ELECTRICAL DEVICES AND EQUIPMENT ARE SHOWN.

3. ALL EXISTING DEVICES AND EQUIPMENT SHALL REMAIN IN PLACE AND OPERATIONAL UNLESS

NOTED OTHERWISE.

4. CONTRACTOR SHALL BE RESPONSIBLE FOR CONTINUITY OF ALL EXISTING CIRCUITS AND

SYSTEMS TO REMAINING DEVICES AND EQUIPMENT WHICH MAY BE AFFECTED BY AREA OF

WORK. MATCH AND EXTEND CONDUIT, CONDUCTORS, CABLES, ETC. AS NECESSARY TO

MAINTAIN CIRCUIT INTEGRITY.

5. ALL EXISTING RACEWAY AND WIRING THAT ARE TO REMAIN IN THE AREA OF WORK SHALL BE

RELOCATED AS REQUIRED TO PROVIDE OR MAINTAIN ACCESSIBILITY AND TO ACCOMMODATE

THE PROPOSED CONSTRUCTION. CONTRACTOR SHALL FIELD VERIFY ALL RACEWAY AND

WIRING TO REMAIN PRIOR TO COMMENCING WORK. ALL RELOCATION SHALL BE COORDINATED

WITH THE OWNER OR OWNER'S REPRESENTATIVE. PROVIDE TEMPORARY CONNECTIONS TO

EQUIPMENT AND DEVICES TO MAINTAIN EQUIPMENT AND SYSTEMS IN SERVICE. ALL DOWNTIME

REQUIRED FOR INSTALLATION OF TEMPORARY CONNECTIONS SHALL BE COORDINATED WITH

THE OWNER OR OWNER'S REPRESENTATIVE.

6. CONTRACTOR SHALL VERIFY NO DEVICES OR EQUIPMENT ARE SERVED BY BREAKERS

CURRENTLY LABELED "SPARE" TO BE UTILIZED FOR NEW WORK WITHIN AFFECTED ELECTRICAL

DISTRIBUTION EQUIPMENT. IN THE EVENT OF A CONFLICT, DEVIATION OR DISCREPANCY,

CONTRACTOR SHALL TRACE AND IDENTIFY SUSPECT LOAD(S) AND PROVIDE WRITTEN

NOTIFICATION TO ENGINEER OF RECORD FOR CLARIFICATION PRIOR TO COMMENCING WORK.

RENOVATION NOTES - ELECTRICAL

10/07/2026

B-1

HWP-1

COMPRESSION

TANK

COMPRESSION

TANK

AS

HVAC CONTROLS PANEL HWP-1 DISC (D)

(E) AHU-1

(E) AHU-3

(E) AHU-2

(E)CHWP-1

(E)UH

FD

PANEL F (E)

(E ) A

IR

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(E) AHU

CONTROLS PANEL

(E) AIR DRYER

(E) RELIEF VENT

(E) MAKEUP WATER

CONNECTION

2" NG, 2 PSI

1" NG

F-25,27,29 e

J

F-16 e

F-14

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2610 Wycliff Road Suite 410 Raleigh, NC 27607-3073 919.881.9939 NC License No. F-0929

Dewberry Engineers Inc.

WALL RATING LEGEND:

GENERAL NOTES:

1. DEMOLISH BOILER.

2. DEMOLISH PUMP. DISCONNECT REMOVE LOAD SIDE BRANCH

CIRCUIT (WIRING AND CONDUIT) BETWEEN EQUIPMENT

CONNECTION AND DEMOLISHED DISCONNECT AND CONTROL

WIRE. RETAIN LINE SIDE WIRE AND CONDUIT FOR RECONNECTION

IN NEW WORK. CONCRETE PAD EXISTING TO REMAIN.

3. DEMOLISH COMPRESSION TANK INCLUDING EQUIPMENT

SUPPORTS.

4. DEMOLISH AIR SEPARATOR.

5. DEMOLISH PIPING BACK TO POINTS INDICATED.

6. DEMOLISH FLUE DUCT AND STACK. ROOF CURB TO BE REUSED.

7. DEMOLISH GAS PIPING BACK TO ISOLATION VALVE IN PIPE RISER.

8. REMOVE RETURN AIR PLENUM ON AHU-1 TO MAKE SPACE FOR

BOILER INSTALLATION. INTERNALLY LINED PLENUM TO BE

REATTACHED AFTER BOILER IS INSTALLED. IF DAMAGED,

CONTRACTOR SHALL REPLACE AT NO ADDITIONAL COST TO

OWNER.

9. DEMOLISH LOW SECTION OF CHILLED WATER PIPING TO MAKE

SPACE FOR BOILER INSTALLATION.

10. TEMPORARILY REMOVE AHU CONDENSATE DRAINS ROUTED TO

FLOOR DRAIN TO MAKE SPACE FOR BOILER INSTALLATION.

CONDENSATE PIPING SHALL BE REATTACHED AFTER BOILER IS

INSTALLED. IF DAMAGED, CONTRACTOR SHALL REPLACE AT NO

ADDITIONAL COST TO OWNER.

11. DEMO JCI METASYS DX9100 CONTROLLER FOR HW AND CHW

PLANT. DISCONNECT LOAD SIDE BRANCH CIRCUIT (WIRING AND

CONDUIT) BETWEEN EQUIPMENT CONNECTION AND NEAREST

UPSTREAM JUNCTION BOX. RETAIN LINE SIDE WIRE AND CONDUIT

FOR RECONNECTION IN NEW WORK.

12. CONTRACTOR TO SHALL DEMOLISH PUMP DISCONNECT SWITCH.

RETAIN ALL LINE SIDE WIRING AND CONDUIT BACK SOURCE FOR

USE IN NEW WORK. DEMOLISH ALL WIRING AND CONDUIT ON

LOAD SIDE OF DISCONNECT SWITCH TO PUMP.

13. PNEUMATIC CONTROLS CABINET FOR AHU'S IS EXISTING TO

REMAIN.

14. COMPRESSOR AND AIR DRYER ARE EXISTING TO REMAIN.

15. DEMOLISH WIRING AND CONDUIT FROM JUNCTION BOX SHOWN

TO BOILER. RETAIN ALL WIRING AND CONDUIT BETWEEN

JUNCTION BOX AND PANEL "F" FOR REUSE IN NEW WORK.

# KEYNOTES:

SCALE:1 DEMOLITION PLAN

1/2" = 1'-0"

1. NOT ALL EXISTING EQUIPMENT, ELECTRICAL PANELS,

DISCONNECTS, EQUIPMENT PADS, ETC, ARE SHOWN.

CONTRACTOR SHALL REVIEW EXISTING CONDITIONS AND

COORDINATE NEW WORK WITH ELEMENTS THAT ARE EXISTING TO

REMAIN.

NO RATED WALLS IN PROJECT AREA.

PMED111

DEMOLITION PLAN

WLH

TW

KRC & KMS

0' 2' 4'1'

10/07/2026

(E) RELIEF VENT

6Ø

FL

U

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6Ø

C O

M B.

A

IR

(E) MAKEUP WATER

CONNECTION

2" NG, 2 PSI

3" HWR

3" HWS

3" HWR

3" HWS

1" MAKEUP WATER

1-1/2" NGAS

F-25,27,29

J

F-16

F-14

J e

SB

J e e e

INTEGRAL

PWHP-1

CONNECTIONM

BOILER

CONNECTION M

B-1 DISC (N)

(E) AHU-1

(E) AHU-3

(E) AHU-2

(E)CHWP-1

(E)UH

FD

PANEL F (E)

(E ) A

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(E) AHU

CONTROLS PANEL

(E) AIR DRYER

B-1

AS-1

HWP-1

XT-1

BAS PLANT CONTROLLER

BOILER

MAINTENANCE

CLEARANCE

HWP-1 VFD (N)

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2610 Wycliff Road Suite 410 Raleigh, NC 27607-3073 919.881.9939 NC License No. F-0929

Dewberry Engineers Inc.

KRC

TW

WLH

PME111

NEW WORK PLAN

SCALE:1 NEW WORK PLAN

1/2" = 1'-0"

WALL RATING LEGEND:

GENERAL NOTES:

1. PROVIDE BOILER AND SNAP SWITCH DISCONNECT WITH

WEATHER PROOF COVER.

2. PROVIDE PUMP, MOUNT TO EXISTING CONCRETE PAD.

PROVIDE NEW VFD.

3. PROVIDE EXPANSION TANK. SUSPEND FROM ROOF

STRUCTURE.

4. PROVIDE AIR SEPARATOR.

5. PROVIDE PIPING AS SHOWN COMPLETE WITH ALL REQUIRED

SUPPORTS, ACCESSORIES, AND INSULATION. CONNECT

BACK TO EXISTING PIPING AS INDICATED.

6. PROVIDE FLUE AND COMBUSTION AIR DUCT TO EXISTING

ROOF CURB. PROVIDE FLUE STACK AND GOOSENECK

INTAKE. SEE DETAILS FOR MORE INFORMATION.

7. PROVIDE GAS PIPING AND REGULATOR. PROVIDE AT LEAST

10 FT OF PIPE DOWNSTREAM OF REGULATOR. VENT

REGULATOR TO EXTERIOR.

8. REATTACH EXISTING RETURN AIR PLENUM TO AHU-1. IF

DAMAGED, CONTRACTOR SHALL REPLACE AT NO

ADDITIONAL COST TO OWNER.

9. REROUTE CHILLED WATER PIPING UP CLOSER TO ROOF

STRUCTURE TO MAKE SPACE FOR BOILER INSTALLATION.

10. REATTACH AHU CONDENSATE PIPING. IF DAMAGED,

CONTRACTOR SHALL REPLACE AT NO ADDITIONAL COST TO

OWNER.

11. ELECTRICAL CONTRACTOR TO PROVIDE NEW 3#12, #12G IN

3/4" C LOAD SIDE BRANCH CIRCUIT (WIRING AND CONDUIT)

BETWEEN BAS CONNECTION AND NEAREST UPSTREAM

JUNCTION BOX. SPLICE AND RECONNECT BAS TO LINE SIDE

WIRE RETAINED DURING DEMOLITION. COORDINATE WITH

DIVISION 23 ON FINAL DISCONNECT LOCATION.

12. PROVIDE INSULATED PANEL TO CLOSE LOUVERS IN

MECHANICAL ROOM DOOR. MOUNT TO INTERIOR SIDE OF

DOOR.

13. PROVIDE EPO SWITCH AT PENTHOUSE DOORS. PROVIDE

ROUGH-IN FOR NEW EPO BUTTONS AS REQUIRED. IF OLD

ROUGH-IN ARE NOT AVAILABLE FOR USE, PROVIDE

JUNCTION BOX AT 48"AFF TO TOP OF BOX WITH 3/4"C TO

MECHANICAL CONTROLS, BAS. CABLING AND BUTTON

PROVIDED UNDER DIVISION 23 CONTRACT.

14. PROVIDE EPO SWITCH AT THE BASE OF LADDER IN

CONTROLS ROOM BELOW MECHANICAL PENTHOUSE.

MOUNT 48" AFF. PROVIDE JUNCTION BOX AT 48" AFF TO TOP

OF BOX WITH 3/4"C TO MECHANICAL CONTROLS, BAS.

CABLING AND BUTTON PROVIDED UNDER DIVISION 23

CONTRACT.

15. PROVIDE HONEYWELL #CO1224 SERIES OR APPROVED

EQUAL. DEVICE SHALL PROVIDE LOCAL CARBON MONOXIDE

DETECTION WITH AUDIO/VISUAL ALARM NOTIFICATION.

PROVIDE 4 CONDUCTOR CABLE IN 3/4"C FOR POWER AND

ALARM SIGNAL TO BAS.

16. PROVIDE BAS PLANT CONTROLLER. SEE CONTROLS

SCHEMATIC FOR ADDITIONAL INFORMATION.

17. SPLICE AND EXTEND EXISTING BRANCH CIRCUIT RETAINED

DURING DEMOLITION USING 2#12, #12G IN 3/4"C TO NEW

BOILER. PROVIDE NEW JUNCTION BOX FOR NEW BOILER

DISCONNECTING MEANS, COORDINATE LOCATION WITH

DIVISION 23.

18. EXTEND BRANCH CIRCUIT USING 3#12, #12G IN 3/4" C FROM

THE LOAD SIDE OF DISCONNECT TO NEW PUMP. DIVISION 26

SHALL INSTALL DISCONNECT SWITCH AND RECONNECT LINE

SIDE WIRE RETAINED DURING DEMOLITION.

# KEYNOTES:

0' 2' 4'1'

1. NOT ALL EXISTING EQUIPMENT, ELECTRICAL PANELS,

DISCONNECTS, EQUIPMENT PADS, ETC, ARE SHOWN.

CONTRACTOR SHALL REVIEW EXISTING CONDITIONS AND

COORDINATE NEW WORK WITH ELEMENTS THAT ARE EXISTING TO

REMAIN.

2. NOTE TO REVIEWER: NO ADDITIONAL ELECTRIC LOADS ADDED OR

REMOVED FROM THIS PROJECT.

NO RATED WALLS IN PROJECT AREA.

0' 2' 4'1'

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2610 Wycliff Road Suite 410 Raleigh, NC 27607-3073 919.881.9939 NC License No. F-0929

Dewberry Engineers Inc.

KRC

TW

WLH

PME501

DETAILS

CONDENSING BOILER SCALE: NTS

235216-004

DUCTED COMBUSTION AIR.

SEE PLANS FOR SIZE AND

ROUTING

BOILER BURNER

CONTROLS

PAINT 4" HIGH EQUIPMENT

PAD WITH OSHA APPROVED

YELLOW PAINT

GAS PRESSURE REGULATOR (TYP.) FOR

EACH BOILER NEAR FLOOR. VERIFY

INCOMING GAS PRESSURE AT METER.

REDUCE TO 14" W.C. PIPE RELIEF TO

BUILDING EXTERIOR

UNION

GAS SUPPLY

6" DIRT LEG

SEE PLUMBING

DRAWINGS FOR

GAS PIPING

DETAILS

PIPE TO

FLOOR DRAIN

CONDENSATE DRAIN

WITH CONDENSATE

NEUTRALIZATION KIT

HARD PIPED

BYPASS PIPE WITH VALVE

ASME PRESSURE

RELIEF VALVE

AL-29-4C STAINLESS

STEEL VENT STACK

FLOW CONTROL VALVE

HOT WATER SUPPLY

DIAL THERMOMETER

P

P

BOILER

DRAIN

NOTES:

1. VERIFY GAS PRESSURE RANGE

2. PREFER COMBUSTION AIR & VENT TO SAME WALL OR ROOF

TO MINIMIZE PRESSURE IMPACT ON EXTERIOR SURFACE

P

DIAL THERMOMETER

PRESSURE GAUGE

HOT WATER RETURN

10' MIN

MAINTAIN MINIMUM 10 FT FROM

REGULATOR OUTLET TO BOILER

CONNECTION. PIPE SIZE SHALL BE

ONE NOMINAL SIZE LARGER THAN

BOILER CONNECTION SIZE.

ELECTRICAL TO MECHANICAL EQUIPMENT SCALE: NTS

ME002-01

STARTER

OR VFD

PANELBOARD

GENERAL NOTES:

1. IT IS THE RESPONSIBILITY OF THE GENERAL CONTRACTOR TO COORDINATE BETWEEN THE ELECTRICAL AND OTHER

TRADES.

2. ELECTRICAL CONTRACTOR PROVIDES DISCONNECT SWITCH IF NEEDED FOR ELEVATORS, KITCHEN EQUIPMENT, OR

OWNER FURNISHED EQUIPMENT.

3. IN ALL CASES THE CONTRACTOR SUPPLYING THE EQUIPMENT SHALL MAKE FINAL CONNECTIONS, START UP, AND TEST

EQUIPMENT.

KEYNOTES:

1. EQUIPMENT BY TRADES OTHER THAN ELECTRICAL.

2. CONDUIT & WIRING BY ELECTRICAL CONTRACTOR.

3. IF AN ADDITIONAL DISCONNECT IS REQUIRED BY NEC IT SHALL BE PROVIDED AND INSTALLED BY ELECTRICAL

CONTRACTOR.

4. A COMBINATION STARTER OR VFD MAY BE USED IN LIEU OF A SEPARATE DISCONNECT SWITCH AND STARTER / VFD.

DISCONNECT SWITCH AND STARTER/VFD PROVIDED BY ELECTRICAL CONTRACTOR. LOCATE DISCONNECT SWITCH

ADJACENT TO VFD.

5. FEEDER CIRCUIT WIRING AND CONDUIT IN ELECTRICAL WORK. SEE PANELBOARD SCHEDULE FOR BREAKER SIZES AND

BRANCH OR FEEDER SCHEDULES FOR WIRE/CONDUIT SIZES.

6. EQUIPMENT PROVIDED WITH INTEGRAL DISCONNECTING MEANS.

TYPICAL PIPE HANGERS SCALE: NTS

230529-003

ADJUSTABLE CLEVIS HANGERADJUSTABLE ROLLER HANGER

SIDE VIEW

TRAPEZE HANGER FOR UP TO 1000

LBS. UNIFORM LOAD

1/2" DIA. HANGER RODS

WITH 36" MAX. SPACING

ON EACH CHANNEL

BAND

PROVIDE INSULATION

SHIELD AND INSERT

FOR ALL PIPING

1-5/8" 12 GAGE

CHANNEL OR 2" X

2" X 1/4" ANGLE

HANGER ROD HANGER ROD

INSULATION

PIPE

SADDLE

INSULATION (VAPOR BARRIER

TYPE IS REQUIRED FOR LOW

TEMPERATURE PIPE)

PROVIDE HIGH COMPRESSIVE

STRENGTH INSULATION INSERT

UNDER INSULATION SHIELD

INSULATION SHIELD AT HANGER

4GAS PIPING PRESSURE REGULATOR SCALE: NTS

231123-002

PRESSURE

REGULATING

VALVE. PRV

TO

UNIT

GROUND JOINT UNION

GAS COCK

6'' TRAP

UTILIZATION

PRESSURE

GAS PIPING SUPPLY

GROUND JOINT UNION

MANUAL SHUTOFF VALVE WITH 1/8''

NPT PLUGGED TAPPING ACCESSIBLE

FOR TEST GAUGE CONNECTION

PIPE RELIEF TO

BUILDING EXTERIOR

SCALE: NTS

232116-002

AIR SEPARATOR / EXPANSION TANK

DRAIN WITH CAP

LOCK SHIELD VALVE

4" HIGH REINFORCED CONCRETE HOUSEKEEPING PAD

AUTOMATIC AIR VENT

BLADDER TYPE

EXPANSION

TANK

AIR

SEPARATOR

FINISHED

FLOOR

REMOVABLE STRAINER

DISCHARGE TO

FL.D.

AUTOMATIC AIR VENT

FLANGE CONNECTION

(TYPICAL)

CLEVIS

HANGER (TYP.)

DRAIN VALVE WITH HOSE THREAD

AND CAP

SKIM VALVE

PRE-CHARGING AIR

CONNECTION

TANK PURGE VALVE

TO PUMP

SUCTION

CONNECTION TO ADDITIONAL EXPANSION

TANK AS REQUIRED

NOTE:

1. REFER TO SCHEDULE FOR EXPANSION TANK CHARGE PRESSURE.

2. WHERE MAKEUP WATER CONNECT CANNOT BE MADE DIRECTLY TO AIR

SEPARATOR, CONNECT ON INLET SIDE OF PIPING.

UNION (TYP.)

SYSTEM

RETURN

RELIEF VALVE REFER TO

SCHEDULE

AV

AV

MAKEUP WATER

CONNECTION

BASE MOUNTED END SUCTION PUMP SCALE: NTS

232123-012

BUTTERFLY ISOLATION VALVE (LUG STYLE)

PUMP FLEX CONNECTOR. REFER TO

SPECS FOR ACCEPTABLE TYPES.

PROVIDE "SPOOL PIECE" SPACER IF NECESSARY TO

PROVIDE ADEQUATE PIPE SEPARATION FOR

INSTALLATION.

PIPE 1/2" GAUGE PRESSURE RELIEF

TO FLOOR DRAIN.

PUMP SUCTION DIFFUSER WITH STRAINER.

MAINTAIN MANF. SUGGESTED SERVICE

CLEARANCE FOR SUCTION FITTING AND

STRAINER REMOVAL.

PROVIDE ADJUSTABLE FOOT SUPPORT

FOR SUCTION FITTING

(E) FLOOR DRAIN

PROVIDE DRIP PAN. PIPE TO NEAREST FLOOR DRAIN.

PROVIDE PUMP WITH INTEGRAL GAUGE PORT TAPS ON

SUCTION & DISCHARGE.

PROVIDE CONCENTRIC REDUCERS WHERE REQUIRED.

PROVIDE BALL VALVES ON GAUGE PIPING (GAUGE COCKS

ARE NOT ACCEPTABLE). MOUNT GAUGE VALVES OUTSIDE

OF PUMP INSULATION COVER.

PIPE GAUGES WITH 1/2" BLACK STEEL PIPE. PAINT WITH

RUST INHIBITOR PAINT.

4" MIN. DIAL GLYCERINE FILLED PRESSURE GAUGE.

SPRING CHECK VALVE

BUTTERFLY ISOLATION VALVE (LUG STYLE). PROVIDE POSITION

LOCK OPERATOR. BALANCE SHALL SET POSITION STOP.

PUMP FLEX CONNECTOR. REFER TO SPECS FOR

ACCEPTABLE TYPES.

(E) CONCRETE EQUIPMENT PAD.

BLOWDOWN VALVE WITH 3/4" HOSE END

AND CAP

NOTE :

MAINTAIN REQUIRED CLEARANCE TO COMBUSTABLES PER CODE

AND FLUE MANUFACTURER.

BOILER STACK AND INTAKE SCALE: NTS

235216-005

2X FLUE

DIA. MIN.

30°

HEIGHT AS REQ'D BY LOCAL

CODE. 24" MINIMUM ABOVE

HIGHEST POINT OF ROOF OR

OBSTRUCTION WITHIN 10FT OF

VENT

RAIN CAP

12"

6"

1 1/2"

ROOF THIMBLE

GALVANIZED SLEEVE

WITH WELDED BASE

ROOF

WEATHER SHIELD, WELD

OR POP RIVIT TO FLUE

BOILER FLUE STACK

EMERGENCY PUSH OFF STATION (EPO) SCALE: NTS

250100-001

WHITE LETTERING

CLEAR PLASTIC COVER

BLACK LETTERING ON

CLEAR PLASTIC COVER.

BLACK LETTERING

DESIGNATING AHU ON

WHITE BACKGROUND

RED PUSH BUTTON

BLUE BACKGROUND

WHITE LETTERING

CONTINUOUS

MASTIC SEAL

ALUMINUM

BIRD SCREEN

18 GA. GALV. DUCT WELD ALL

JOINTS TO BE WATERTIGHT -

SEE PLANS FOR SIZE

30°

BOILER COMBUSTION

AIR INTAKE

WIRE COLOR CODING 120/208V SCALE: NTS

E002-07

BLACK

PHASE-C BLUE

PHASE-B RED

PHASE-A BLACK

DODO

BLACK

BLUE

RED

BLUE

RED

DO

120/208 VOLTS

DO

BLACK

BLACK

BLUE

RED

BLUE

RED

GROUND BUS

NEUTRAL BUS

WHITE

120/208 VOLTS

GREEN

TOP OR BOTTOM FEED

(SEE RISER DIAGRAM)

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2610 Wycliff Road Suite 410 Raleigh, NC 27607-3073 919.881.9939 NC License No. F-0929

Dewberry Engineers Inc.

KRC & KMS

TW

WLH

PME601

SCHEDULES

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2610 Wycliff Road Suite 410 Raleigh, NC 27607-3073 919.881.9939 NC License No. F-0929

Dewberry Engineers Inc.

KRC & KMS

TW

WLH

PME701

CONTROLS

SCALE:1 BOILER CONTROLS SCHEMATIC

N.T.S. SCALE:2 CHILLER CONTROLS SCHEMATIC

N.T.S.

B-1

PHWP-1

DO START/STOP

DI STATUS

DI ALARM

MSD DO START/STOP

DI STATUS

ASBLDG

SHWP-1

VFD DO START/STOP

AO SPEED CONTROL

VP STATUS

(E) 3" HWR

(E) 3" HWS

T

AI

T

AIBLDG HWR

TEMP

DO COMPRESSOR 1 STATUS

DO COMPRESSOR 2 STATUS

AI AMPS

T

AICH-1 EWT

T

AI CH-1 LWT

VFDDOSTART/STOP

AOSPEED CONTROL

AIAMPS

DO START/STOP

CH-1

4" CHWS

4" CHWR

1. GENERAL: THE BAS SHALL FULLY CONTROL THE HEATING AND COOLING SYSTEMS AND

EQUIPMENT.

1.1. SYSTEM ENABLE: WHEN THE BUILDING IS OCCUPIED BASED ON THE TIME SCHEDULE, OR THE

SPACE TEMPERATURE SETPOINTS HAVE NOT BEEN MET FOR 10 MINUTES (ADJ), OR IF

MANUALLY ENABLED BY THE BAS.

1.2. SYSTEM DISABLE: WHEN THE BUILDING IS UNOCCUPIED BASED ON THE TIME SCHEDULE, OR

THE TEMPERATURE SET POINTS HAVE BEEN MET FOR AT LEAST 30 MINUTES (ADJ), OR IF

MANUALLY DISABLED BY THE BAS.

1.3. OCCUPIED TIME SCHEDULE (ADJ):

MONDAY THROUGH THURSDAY, 8 AM TO 9 PM

FRIDAY, 8 AM TO 7 PM

SATURDAY, 8 AM TO 6 PM

SUNDAY, 12 PM TO 6 PM

2. HOT WATER PUMP CONTROL

2.1. START/STOP: WHENEVER THE SYSTEM IS ENABLED, THE HOT WATER PUMP WILL BE

ENABLED. WHENEVER DISABLED, THE PUMP SHALL BE DISABLED AFTER A 3 MINUTE DELAY.

2.2. PROOF: UPON FAILURE OF THE HOT WATER PUMP, THE BAS SHALL ENUNCIATE AN ALARM.

2.3. VFD CONTROL: ON START AND STOP, THE VFD SHALL RAMP TO SPEED AND SLOW DOWN

WITHIN AN ADJUSTABLE ACCELERATION AND DECELERATION LIMIT. CONSTANT SPEED

SETTING SHALL BE ESTABLISHED BY PRETAB OF EXISTING PUMP OPERATION.

3. BOILER PUMP CONTROL

3.1. ENABLE/DISABLE: THE BOILER SHALL CONTROL ITS PRIMARY PUMP. WHENEVER DISABLED, THE PUMP SHALL BE DISABLED AFTER A 1 MINUTE DELAY.

3.2. PROOF: BOILER SHALL PROVE ITS PRIMARY PUMP OPERATION. UPON FAILURE OF THE PUMP, THE BAS SHALL RECEIVE AND ENUNCIATE AN ALARM.

4. BOILER CONTROL

4.1. ENABLE/DISABLE: WHENEVER THE SYSTEM IS ENABLED AND THE HOT WATER SUPPLY

TEMPERATURE FALLS BELOW THE SETPOINT, 180 DEG F (ADJ), AND THE HOT WATER PUMP IS

PROVEN ON, THE BAS SHALL ENABLE THE BOILER. THE BOILER SHALL OPERATE UNDER ITS

PACKAGED CONTROLS TO MAINTAIN HEATING WATER SETPOINT.

4.2. PROOF: UPON FAILURE OF THE BOILER, THE BAS SHALL ENUNCIATE AN ALARM.

5. CHILLED WATER PUMP CONTROL

5.1. START/STOP: WHENEVER THE SYSTEM IS ENABLED, THE CHILLED WATER PUMP WILL BE

ENABLED. WHENEVER DISABLED, THE PUMP SHALL BE DISABLED AFTER A 3 MINUTE DELAY.

5.2. PROOF: UPON FAILURE OF THE CHILLED WATER PUMP, THE BAS SHALL ENUNCIATE AN

ALARM.

5.3. VFD CONTROL: ON START AND STOP, THE VFD SHALL RAMP TO SPEED AND SLOW DOWN

WITHIN AN ADJUSTABLE ACCELERATION AND DECELERATION LIMIT. CONSTANT SPEED

SETTING SHALL BE ESTABLISHED BY PRETAB OF EXISTING PUMP OPERATION.

6. CHILLER CONTROL

6.1. ENABLE/DISABLE: WHENEVER THE SYSTEM IS ENABLED AND THE CHILLED WATER SUPPLY

TEMPERATURE FALLS BELOW SETPOINT, 44 DEG F (ADJ), AND THE CHILLED WATER PUMP

STATUS IS PROVEN ON, THE BAS SHALL ENABLE THE CHILLER. THE CHILLER SHALL OPERATE

UNDER ITS PACKAGED CONTROLS TO MAINTAIN THE CHILLED WATER SETPOINT.

6.2. UPON FAILURE OF THE CHILLER, THE BAS SHALL ENUNCIATE AN ALARM.

SEQUENCE OF OPERATIONS: CHILLED WATER AND HOT WATER PLANT

CONTROLS

BLDG HWS

TEMP

VP ALARM

CO

DIBOILER ROOM CO

VP EWT (BACNET)

VP BACNET IT

DI EPO STATUS

EPO

DI E-STOP

VP LWT (BACNET)

KEY NOTES:

1. HW SUPPLY HEADER TEMPERATURE SENSOR FURNISHED BY BOILER MANUFACTURER.

GENERAL NOTES:

1. CONTRACTOR SHALL VERIFY ALL NEW AND EXISTING TO REMAIN DEVICES ARE CALIBRATED AND

OPERATING PROPERLY. EXISTING DEVICES WHICH ARE BROKEN OR MALFUNCTIONING SHALL BE

INVENTORIED AND BROUGHT TO THE OWNER'S ATTENTION FOR REPLACEMENT.

2. MIGRATE ALL BALANCED STATES (VFD SPEED, ETC) FOR EXISTING TO REMAIN SYSTEMS.

GENERAL NOTES:

1. END DEVICES AND SENSORS ARE EXISTING TO REMAIN. EXISTING WIRING AND CONDUIT BETWEEN CONTROLLER AND DEVICES SHALL BE REUSED. MIGRATE EXISTING POINTS TO NEW CONTROLLER.

2. CONTRACTOR SHALL VERIFY ALL NEW AND EXISTING TO REMAIN DEVICES ARE CALIBRATED AND

OPERATING PROPERLY. EXISTING DEVICES WHICH ARE BROKEN OR MALFUNCTIONING SHALL BE

INVENTORIED AND BROUGHT TO THE OWNER'S ATTENTION FOR REPLACEMENT.

3. MIGRATE ALL BALANCED STATES (VFD SPEED, ETC) FOR EXISTING TO REMAIN SYSTEMS.

T

AI TO BOILER 2

X

10/07/2026