BOBBITT MAKE-UP AIR

DRAWING INDEXDRAWING TITLESHEET

T001 TITLE SHEETMECHANICAL LEGENDS, NOTES & SCHEDULESM001HUNTER SQUARE MECHANICAL DEMOLITION PLANMD101

VICINITY MAP

MECHANICAL CONTROL DIAGRAMSMECHANICAL DETAILS

E001

M301

BOBBITT MECHANICAL DEMOLITION PLANSMD102HUNTER SQUARE MECHANICAL NEW WORK PLANM101BOBBITT MECHANICAL NEW WORK PLANSM102

MECHANICAL CONTROL DIAGRAMS

ED101ELECTRICAL LEGENDS, NOTES & SCHEDULES

ED102HUNTER SQUARE ELECTRICAL DEMOLITION PLAN

E101BOBBITT ELECTRICAL DEMOLITION PLANS

E102HUNTER SQUARE ELECTRICAL NEW WORK PLAN

PREPARED BY:

ROACH CONSULTING ENGINEERS, P.C.

AND HUNTER SQUARE CHILLER REPLACEMENT

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BOBBITT ELECTRICAL NEW WORK PLANS

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BOBBITT

HUNTER SQUARE

LOCATION MAP LOCATION MAP

M201

HUNTER SQUARE825 GOFF ST.NORFOLK, VA 23504

BOBBITT5920 POPLAR HALL DR.NORFOLK, VA 23502

EQUIPMENT DESIGNATION LEGEND

AIR COOLED CONDENSER

AIR HANDLING UNIT

WATER-COOLED CHILLER SCHEDULE

MAKE-UP AIR UNIT

PUMP DESIGNATION

UNIT HEATER

ACC-1

AHU-1

C-1

MUA-1

PA-12

UH

DEMOLITION NOTE

NEW WORK NOTE

SUPPLY DUCT UP/DOWN

POINT OF DISCONNECTION

POINT OF CONNECTION

CONDENSER WATER SUPPLY

CONDENSER WATER RETURN

CHILLED WATER SUPPLY

CHILLED WATER RETURN

HOT WATER SUPPLY

HOT WATER RETURN

REFRIGERANT PIPING

FLOW DIRECTION ARROW

EXISTING DUCT SIZE

ELBOW WITH TURNING VANES

SMOKE DETECTOR

3 WAY CONTROL VALVE

GATE VALVE

THERMOMETER

FLOOR DRAIN

BACKFLOW PREVENTER

REFRIGERANT MONITOR

BALANCING VALVE

UNION

VENTURI BALANCING VALVE

MANUAL AIR VENT

PRESSURE TEMPERATURE PORT

Y-STRAINER

HVAC LEGEND

GENERAL ABBREVIATIONS

AIR VENT

BRITISH THERMAL UNITS

PER HOUR

CUBIC FEET PER MINUTE

CHILLED WATER

DRY BULB

DIRECT DIGITAL CONTROL

ENTERING AIR TEMPERATURE

ENTERING WATER

TEMPERATURE

EXISTING TO REMAIN

EXTERNAL STATIC PRESSURE

DEGREES FARENHEIT

FULL LOAD AMPS

FEET

GALLONS PER MINUTE

INCHES

KILOWATT

LEAVING AIR TEMPERATURE

A/V

BTUH

CFM

CHW

DB

DDC

EAT

EWT

ETR

ESP

°F

FLA

FT

GPM

IN

KW

LAT

1. MECHANICAL WORK SHALL CONFORM WITH THE 2012 VIRGINIA UNIFORM

STATEWIDE BUILDING CODE (VUSBC). ALL EQUIPMENT AND INSTALLATION

METHODS SHALL CONFORM.

2. DUCT DIMENSIONS MAY BE MODIFIED AS APPROVED BY ENGINEER.

3. SEAL AROUND AND MAKE AIRTIGHT ALL DUCTS AND PIPES PENETRATING

INSULATED CEILINGS, WALLS AND FLOORS.

4. CONTRACTOR SHALL VERIFY REFRIGERANT PIPE SIZES WITH EQUIPMENT

MANUFACTURER FOR THE INDICATED INSTALLATION.

5. VALVES AND SPECIALTIES SHALL BE LINE SIZE EXCEPT FOR CONTROL

VALVES OR UNLESS NOTED OTHERWISE.

6. CORRECT SETTING ON BALANCING FITTINGS SHALL BE PERMANENTLY

MARKED.

7. PROVIDE MANUAL AIR VENTS AT HIGH POINTS OF HYDRONIC SYSTEMS.

8. PROVIDE 1/2" DRAIN VALVES AND CAPPED CONNECTIONS AT LOW POINTS IN

PIPING SYSTEMS FOR DRAINING.

9. EXAMINE MANUFACTURER'S LITERATURE TO DETERMINE RECOMMENDED

CLEARANCES, THESE CLEARANCES SHALL BE ESTABLISHED AND

MAINTAINED. THE CONTRACTOR SHALL BE RESPONSIBLE FOR

COORDINATING THESE REQUIREMENTS WITH ALL OTHER TRADES.

GENERAL MECHANICAL NOTES

1

LWT

MAX

MBH

MCA

MOCP

MIN

NO.

OA

PD

REFRIG

RLA

SENS

TEMP

VFD

WB

WG

WPD

ZHC

LEAVING WATER TEMPERATURE

MAXIMUM

1000 BTUH

MINIMUM CIRCUIT AMPS

MAXIMUM OVERCURRENT

PROTECTION

MINIMUM

NUMBER

OUTSIDE AIR

PRESSURE DROP

REFRIGERATION

RATED LOADED AMPS

SENSIBLE

TEMPERATURE

VARIABLE FREQUENCY DRIVE

WET BULB

WATER GUAGE

WATER PRESSURE DROP

ZONE HEATING COIL

1

INDICATES EXISTING TO BE DEMOLISHED

INDICATES EXISTING TO REMAIN

INDICATES NEW WORK

LINE TYPE LEGEND

1. CONTRACTOR SHALL VISIT JOB SITE TO DETERMINE EXTENT OF WORK

INVOLVED PRIOR TO BIDDING THE PROJECT.

2. WHERE DUCTWORK IS INDICATED TO BE REMOVED, IT SHALL MEAN

COMPLETE REMOVAL OF DUCTWORK, INCLUDING FITTINGS, INSULATION,

SUPPORTS, BRACKETS, CONTROLS, AND INCIDENTAL ITEMS CONNECTED OR

FASTENED TO THE DUCTWORK. DUCTWORK IS DIAGRAMMATIC AND

INDICATES THE GENERAL EXTENT OF WORK. NO ATTEMPT IS MADE TO SHOW

EVERY ELL, TEE, OFFSET AND FITTING. REMOVE DUCTWORK AS INDICATED

AND SPECIFIED.

GENERAL DEMOLITION NOTES

CWS

CWR

CHWS

CHWR

FD

SD

(X" x X")

RS/RL

HWS

HWR

BFP

RM

PT

T

NRHA HAS AN EXISTING WEB BASED BACNET ENTERPRISE DDC CONTROL

SYSTEM IN OPERATION CONNECTED TO MULTIPLE NRHA BOILER PLANT

FACILITIES. IT IS AN AUTOMATED LOGIC (ALC) WEBCTRL SYSTEM. THE FRONT

-END WEB SERVER AND APPLICATION SOFTWARE IS LOCATED AT THE 910

BALLENTINE FACILITY. NETWORK SECURITY IS COORDINATED WITH THE

NRHA IT DEPARTMENT AND FIREWALL VPN PROTECTION FOR THE NRHA

WIDE AREA NETWORK IS MAINTAINED TO ALLOW THE STAND-ALONE REMOTE

BOILER PLANTS TO COMMUNICATE SEAMLESSLY TO THE ALC WEBCTRL

SERVER. THE ALC SYSTEM IS SERVICED MONTHLY AND OPERATIONALLY

MAINTAINED BY THERMO-TROL SYSTEMS OF VIRGINIA BEACH.

THE CONTRACTOR WILL BE RESPONSIBLE FOR INCLUDING IN THEIR PRICE

THE SERVICES OF THERMO-TROL SYSTEMS TO PERFORM THE CONTROL

PORTION OF THE SCOPE OF WORK. ADDITIONALLY IT IS THE RESPONSIBILITY

OF THE CONTRACTOR TO COORDINATE THE DEMOLITION OF CONTROLS AND

INSTALLATION OF CONTROLS WITH THERMO-TROL SYSTEMS TO ENSURE

THAT THE EQUIPMENT CONTROLS REMAIN OPERATIONAL DURING THE

RENOVATION AND DOWNTIME IS MINIMIZED. WORK SHALL NOT AFFECT THE

OPERATION OF THE OTHER EQUIPMENT MONITORED AND CONTROLLED BY

THE AUTOMATED LOGIC WEBCTRL SYSTEM.

CONTROLS SCOPE OF WORK ALLOWANCE IS LISTED ON THE BID FORM.

CONTACT DARYL BEASLEY OF THERMO-TROL SYSTEMS (757-428-4646) FOR

COORDINATION.

THE SCOPE OF WORK ALLOWANCE ALSO INCLUDES THE REFRIGERANT

MONITORING SYSTEM.

DDC CONTROLS NOTE

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LEG

END

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HED

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REMOVE 80 TON CHILLER COMPLETE. RECOVER REFRIGERANT AND DISPOSE OF

ACCORDINGLY.

REMOVE 6" CONDENSOR WATER SUPPLY AND RETURN PIPING TO POINT INDICATED.

REMOVE 6" CHILLED WATER SUPPLY AND RETURN PIPING TO POINT INDICATED.

REMOVE REFRIGERANT MONITORING SYSTEM.

REMOVE CONDENSER WATER PUMP PA-12 AND STORE FOR REINSTALLATION.

PERFORM PRETEST AND BALANCE ON CHILLER, COOLING TOWER, CONDENSER

WATER PUMP, AND CHILLED WATER PUMP. REPORT FLOWS AT MAXIMUM, MINIMUM

AND TEMPERATURES TO ENGINEER. REPORT ANY CONCERNS TO ENGINEER ABOUT

BRINGING ENTIRE SYSTEM BACK UP TO FULL OPERATION.

REMOVE FLOW SENSOR.

1

DEMOLITION NOTES THIS SHEET

2

1

3

2

2

3

PA-12 VFD,

ETR

PA-12

PURGE FAN, ETR

CHEMICAL FEED, ETR

HUNTER SQUARE MECHANICAL ROOM - MECHANICAL DEMOLITION PLAN

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

COOLING TOWER, ETR

CIRCULATION FAN, ETR

FD

VFD

INCOMING

DOMESTIC WATER

EXISTING GATE IN BRICK

WALL (ACCESS FOR

CHILLER REMOVAL)

EXISTING ROLL-UP DOOR

4

5

5

3

4

1/4" = 1'-0"

5' 0 5' 10'

6

6

CH

WS

CH

WR

CWR

CWS

GRAPHIC SCALE

AREA OF WORK

KEYPLAN

NO SCALE

EXISTING EQUIPMENT PAD

BFP

DOMESTIC WATER

MAKEUP LINE, ETR

CHW PUMPS, ETR

REFRIGERANT MONITOR3

6

6

A/V

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NOTES THIS SHEET

REMOVE DEDICATED OUTSIDE AIR UNIT COMPLETE. DISCONNECT UNIT FROM LOUVER.

REMOVE DUCTWORK TO POINT INDICATED.

REMOVE RS/RL PIPING COMPLETE.

REMOVE HWS/HWR TO POINT INDICATED.

PERFORM PRETEST AND BALANCE ON AIR FLOW AND HOT WATER FLOW.

REMOVE AIR COOLED CONDENSING UNIT.

REMOVE UNDERGROUND REFRIGERANT PIPING COMPLETE, MAINTAIN PATH FOR NEW REFRIGERANT

PIPING.

DOMESTIC HOT WATER RECIRCULATION LINE RUNS NEAR UNIT IF REMOVAL IS REQUIRED FOR

INSTALLATION OF MUA-1 COORDINATE OUTAGE WITH NRHA.

REMOVE 1" DRAIN PIPE TO POINT INDICATED.

1

BOBBITT FIRST FLOOR MECHANICAL PLAN

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

(24x18)

(1

8x8

)

(6x18)

2-1/2" CHS

(2

6x1

2)

54x30 OUTSIDE AIR

INTAKE LOUVER

(18x18)

(32x8)

(10x12)

(12x12)

(16x12)

ZHC, ETR

MUA-1

S

D

ZHC, ETR

5

2

3

4

2

2

4

4

FOR CONTINUATION

SEE SITE PLAN

DOMESTIC WATER

TANK, ETR LOCATED

BELOW UNIT.

1

MD102 MD102

5

6

7

1

1/4" = 1'-0"

5' 0 5' 10'

ZHC, ETR

EXISTING

DUCT UP

8

9

3

9

1"

BOBBITT SITE MECHANICAL PLAN

SCALE: 1" = 10'-0"

1

MD102 MD102

7

6

1" = 10'-0"

10' 5' 0 10' 20' 30'

GRAPHIC SCALE

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PA-12 VFD, ETR

PURGE FAN, ETR

CHEMICAL FEED, ETR

COOLING TOWER, ETR

CIRCULATION FAN, ETR

FD

VFD

INCOMING

DOMESTIC WATER

EXISTING ROLL-UP DOOR

1/4" = 1'-0"

5' 0 5' 10'

PROVIDE CHILLER AND SUPPORTS COMPLETE. PROVIDE MANUFACTURER

RECOMMENDED.

PROVIDE INSULATED CHWS & CHWR PIPING COMPLETE. PAINT PIPE TO MATCH

EXISTING COLOR CONVENTION. CONTRACTOR TO VERIFY SIZE PRIOR TO

INSTALLATION.

PROVIDE CWS & CWR PIPING, INSULATION, HANGERS AND SUPPORTS COMPLETE.

PAINT PIPE TO MATCH EXISTING COLOR CONVENTION. CONTRACTOR TO VERIFY SIZE

PRIOR TO INSTALLATION.

INSTALL STORED PUMP, PA-12, IN NEW LOCATION TO PROVIDE SPACE TO SERVICE

CHILLER. REFER TO PUMP INSTALLATION DETAIL.

PROVIDE AND INSTALL SINGLE ZONE REFRIGERANT MONITOR.

PROVIDE AND INSTALL COMBINATION HORN/STROBE ALARM ABOVE REFRIGERANT

MONITOR.

PROVIDE AND ROUTE TUBING FROM THE MONITOR TO A SAMPLE LOCATION NEAR

THE CHILLER. TERMINATE 12" AFF.

PROVIDE AND ROUTE TUBING FROM THE MONITOR TO A REFERENCE LOCATION

EXTERIOR TO THE ROOM, TERMINATE AT LEAST 8 FEET AFF. PROVIDE WEATHER

PROTECTION SHIELD.

MAINTAIN CONNECTIONS OF CHEMICAL FEED SYSTEM TO EXISTING PIPE. IF

CONNECTIONS ARE DEMOLISHED, CONTRACTOR SHALL INSTALL TO MAINTAIN

OPERATION OF CHEMICAL FEED SYSTEM.

FILL SYSTEM AND MAINTAIN CHEMICAL LEVELS TO ESTABLISHED STANDARDS.

CHEMICALS SHOULD BE PURCHASED FROM CHEMTREAT, INC; 10040 LICKINGHOLD

ROAD, ASHLAND, VIRGINIA 23005, 1-804-935-2000. CONTRACTOR SHALL SHOCK TOWER

AS REQUIRED TO BRING ENTIRE SYSTEM UP TO OPERATIONAL LIMITS.

PROVIDE FLOW STATION.

TIE EXISTING PURGE FAN IN WITH NEW REFRIGERANT MONITORING SYSTEM.

1

NEW WORK NOTES THIS SHEET

2

3

SIEMENS CONTROL

PANEL, ETR

1

2

3

HUNTER SQUARE MECHANICAL ROOM - MECHANICAL NEW WORK PLAN

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

CH

WS

CH

WR

CWR

CWS

AREA OF WORK

KEYPLAN

NO SCALE

GRAPHIC SCALE

4

5

6

7

8

9

RM

65

7

8

9

BFP

DOMESTIC WATER

MAKEUP LINE, ETR

CHW PUMPS, ETR

4

10

10

10

A/V

, E

TR

CHWS

CHWR

6"

6"

11

11

12

12

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NOTES THIS SHEET

PROVIDE 100% OUTSIDE AIR UNIT ON VIBRATION ISOLATION HANGERS. PROVIDE FLEXIBLE CONNECTORS

TO DUCTWORK. EXTEND UNISTRUT TO HANG UNIT SECURELY. CONTRACTOR SHALL FIELD COORDINATE

CONNECTIONS TO EXISTING DUCT. VERIFY ALL DUCT SIZES.

PROVIDE DUCT TRANSITION TO EXISTING DUCTWORK.

PROVIDE RS/RL PIPING, INSULATION, HANGERS, AND SUPPORTS.

PROVIDE HWS/R, INSULATION, PIPING, HANGERS AND SUPPORTS.

PROVIDE UNDERGROUND ENCASED RS/RL PIPING. SEE DETAIL ON M201.

PROVIDE CONDENSING UNIT.

PROVIDE CONDENSATE DRAIN. CONNECT TO EXISTING.

1

BOBBITT FIRST FLOOR MECHANICAL PLAN

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

(24x18)

(1

8x8

)

(6x18)

2-1/2" CHS

(2

6x1

2)

(18x18)

(32x8)

(10x12)(12x12)

(16x12)

ZHC-3

MUA-1

ZHC-2

FOR CONTINUATION

SEE SITE PLAN

DOMESTIC WATER

TANK, ETR LOCATED

BELOW UNIT.

1

M102 M102

1/4" = 1'-0"

5' 0 5' 10'

S

D

2

3

4

5

6

2

2

3

1

4

PROVIDE SCHEDULE 40 PVC WITH LONG SWEEP TEE FOR EACH OF THE THREE PIPES REQUIRED.

TRENCH SHALL BE PARTIALLY BACK FILLED WITH PEA GRAVEL, NOTHING LARGER THAN 6" IN DIAMETER.

NO WHEELED OR TRACKED VEHICLES SHALL BE USED FOR TAMPING.

ALL REFRIGERANT PIPING MUST PASS THE LEAK TEST AND BE VACUUMED CLEANED PRIOR TO BEING

BACKFILLED.

PVC SHALL BE BROUGHT MIN OF 8" ABOVE GRADE PRIOT TO TERMINATION. INSTALL A WATERTIGHT

ENCLOSURE OVER REFRIGERANT LINES AT POINT OF ENTRY.

BURIED REFRIGERANT PIPING NOTE

7

7

1"

1-1/2"

BOBBITT SITE MECHANICAL PLAN

SCALE: 1" = 10'-0"

ACCU-1

1" = 10'-0"

10' 5' 0 10' 20' 30'

GRAPHIC SCALE

5

6

1

M102 M102

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AHU INSTALLATION DETAIL

SUPPLY AIR DUCT

MOUNT HIGH ENOUGH

FOR CONDENSATE

DRAIN TO SLOPE

D

RL

RS

CEILING

3/8" THREADED ROD

(TYP. OF 4)

VIBRATION ISOLATOR

(TYP OF 4)

FIL

TE

R

FLEX CONNECTION

AUXILIARY DRAIN PAN, EXTEND 3"

ON ALL SIDES OF UNIT, PROVIDE

FLOAT SWITCH

NOT TO SCALE

CIRCULATING PUMP CONNECTIONS DETAIL

SUCTION DIFFUSER

PRESSURE GAUGE

THERMOMETER (TYP.)

GATE VALVE (TYP.)

FLEXIBLE CONNECTOR (TYP.)

VERTICAL LIFT CHECK VALVE

CONCENTRIC REDUCER

COUPLING GUARD

PUMP

PUMP BASE

MOTOR

BLOW-OFF

SUPPORT

EXISTING PAD

NOT TO SCALE

VALVE

T

T

PT

PT

NOT TO SCALE

HOT WATER COIL PIPING DIAGRAM

HWR

HWS

3-WAY CONTROL VALVEBALANCING

BALANCING VALVE

3/4" DRAIN VALVE

WITH HOSE FITTING

MANUAL AIR VENT

VENTURI

NOTE: ARRANGE PIPING TO PERMIT REMOVAL OF COIL IN AHU.

FLOW STATION DETAIL

TRANSMITTER, DIERIECH MOD. 2000CX

OR EQUAL 4-20ma OUTPUT, 24VDC INPUT

ANNUBAR OR EQUAL

FLOW SENSOR ANNUBAR

OR EQUAL

CHWR

MIN. 42" STRAIGHT MIN. 24" STRAIGHT

MOUNTING BRACKET

NOT TO SCALE

AHU CONDENSATE TRAP DETAIL

AUXILIARY DRAIN PAN, EXTEND 3"

ON ALL SIDES OF UNIT. PROVIDE

WITH FLOAT SWITCH

3/4" SCHEDULE 40 PVC, SEE

PLUMBING PLANS FOR

LOCATIONS

CLEAN OUT

AIR HANDLING UNIT

NOT TO SCALE

UNDERGROUND PIPING DETAIL

NOT TO SCALE

PVC SCHEDULE 40 PIPE

REFRIGERANT GAS

PIPE

INSULATION MATERIAL

FINISHING TAPE

PVC SCHEDULE 40 PIPE

4"

REFRIGERANT LIQUID

PIPE

4"

12"

BEDDING SOIL

NATIVE BACKFILL

NOTE: PUMP IS EXISTING. ALL VALVE WORK TO PUMP AND PIPING IS NEW.

BUTTERFLY VALVE (TYP.)

PRESSURE GAUGE

TEMPERATURE TRANSMITTER (TYP.)

THERMOMETER (TYP.)

3/4" BALL VALVE W/HOSE

CONNECTION AND CAP (TYP.)

FLANGE (TYP.)

CONDENSER

EVAPORATOR

STAINLESS STEEL

SPARE WELL (TYP.)

RELIEF VALVE SET AT 150 PSI

PIPE TO DISCHARGE TO DRAIN

DIFFERENTIAL PRESSURE

SWITCH (TYP.)

MOUNTING CONTROL

VALVE (TYP.)

CWS

CWR

DPS

1" BALL VALVE WITH

THREADED CAP (TYP. 4)

1. SPECIFY FIELD FABRICATED, REMOVABLE

AND REUSEABLE INSULATION BOXES ON

EVAPORATOR MACHINE BOX HEADS.

2. ROUTE REFRIGERANT RELIEF VALVES TO

EXTERIOR OF BUILDING.

3. INDICATE DRAINS ON BOTTOM OF HEAT

EXCHANGER HEADS/MARINE WATER BOXES,

EACH END.

NOTES:

DPS

CHWR

CHWS

TT

TT

TT

WATER-COOLED CHILLER PIPING DIAGRAM

NOT TO SCALE

SEED ALL AREAS DISTURBED BY

DEMOLITION AND NEW WORK

ELECTRICAL AND

CONTROL WIRING

INSULATION MATERIAL

4"

PEA GRAVEL BACKFILL

OUTSIDE

AIR DUCT

4"

FLOW MEASURING

DEVICE (TYP.)

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M201

MEC

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DET

AIL

S

CHILLED WATER BYPASS VALVE

CHILLED WATER ISOLATION VALVE

CHILLER

LOCAL DDC CONTROLLER

CHILLED WATER ISOLATION VALVE STATUS

AN

ALO

G

DIG

IT

AL

D01

OUTPUTS

A01

DIG

IT

AL

DI1

DI2

AN

ALO

G

AI1

INPUTS

CHILLED WATER FLOW

DI3

AI2CHILLED WATER RETURN TEMP

AI3CHILLED WATER SUPPLY TEMP

CONDENSER WATER PUMP STATUSDI4

CHILLER STATUS

CHILLED WATER PUMP STATUS

AI4CONDENSER WATER RETURN TEMP

DI5

AI5CONDENSER WATER SUPPLY TEMP

CHILLED WATER PUMP START/STOPD02

CHILLER ENABLED03

CONDENSER WATER PUMP START/STOPD04AI6

CHILLED WATER FLOW SETPOINT

DI6

EMERGENCY SHUTDOWN

REFRIGERANT LEAK SHUTDOWN

CHILLED WATER SYSTEM CONTROL DIAGRAM, POINTS LIST, AND SEQUENCE OF OPERATION

NO SCALE

M

CT

Starter

CWS

CWR

T

T

T

T

R

Chiller

CHWR

M

CT

Starter

CHWS

S

AI7OUTSIDE AIR TEMP

DI5

D01

DI1

D02

DI2

AI1

AI2

DI6

DI3

D03

AI3

AI4

AI5

DI4

D04

1. SINGLE WATER COOLED CHILLER (TYPICAL OF 1)

CHILLER - RUN CONDITIONS:

THE CHILLER SHALL BE ENABLED TO RUN WHENEVER:

• A DEFINABLE NUMBER OF CHILLED WATER COILS NEED COOLING

• AND THE OUTSIDE AIR TEMPERATURE IS GREATER THAN 54°F (ADJ.).

TO PREVENT SHORT CYCLING, THE CHILLER SHALL RUN FOR AND BE OFF FOR

MINIMUM ADJUSTABLE TIMES (BOTH USER DEFINABLE), UNLESS SHUTDOWN ON

SAFETIES OR OUTSIDE AIR CONDITIONS.

THE CHILLER SHALL RUN SUBJECT TO ITS OWN INTERNAL SAFETIES AND

CONTROLS.

EMERGENCY SHUTDOWN:

THE CHILLER SHALL SHUT DOWN AND AN ALARM GENERATED UPON RECEIVING

AN EMERGENCY SHUTDOWN SIGNAL STATUS.

REFRIGERANT DETECTION:

THE CHILLER SHALL SHUT DOWN AND AN ALARM GENERATED UPON RECEIVING

A REFRIGERANT LEAK DETECTION STATUS.T HE EXISTING PURGE FAN SHALL

ENGAGE UPON DETECTION OF REFRIGERANT AT LOW SPEED. UPON INCREASE

IN REFRIGERANT DETECTED THE PURGE FAN SHALL OPERATE AT HIGH SPEED.

CHILLED WATER ISOLATION VALVE:

THE CHILLED WATER ISOLATION VALVE SHALL OPEN ANYTIME THE CHILLER IS

CALLED TO RUN. THE CHILLED WATER ISOLATION VALVE SHALL ALSO OPEN

WHENEVER THE CHILLED WATER PUMP RUNS FOR FREEZE PROTECTION.

THE CHILLED WATER ISOLATION VALVE SHALL OPEN PRIOR TO THE

CHILLER BEING ENABLED AND SHALL CLOSE ONLY AFTER THE CHILLER IS

DISABLED. THE CHILLED WATER ISOLATION VALVE SHALL THEREFORE HAVE:

• A USER ADJUSTABLE DELAY ON START.

• AND A USER ADJUSTABLE DELAY ON STOP.

THE DELAY TIMES SHALL BE SET APPROPRIATELY TO ALLOW FOR ORDERLY

CHILLED WATER SYSTEM START-UP, SHUTDOWN AND SEQUENCING.

ALARMS SHALL BE PROVIDED AS FOLLOWS:

• CHILLED WATER ISOLATION VALVE FAILURE: VALVE COMMANDED OPEN

BUT THE STATUS INDICATES CLOSED.

• CHILLED WATER ISOLATION VALVE OPEN IN HAND: VALVE COMMANDED

CLOSED BUT THE STATUS INDICATES OPEN.

• CHILLED WATER ISOLATION VALVE RUNTIME EXCEEDED: VALVE STATUS

RUNTIME EXCEEDS A USER-DEFINABLE LIMIT.

CHILLED WATER PUMP:

THE CHILLED WATER PUMP SHALL RUN ANYTIME THE CHILLER IS CALLED TO

RUN. THE CHILLED WATER PUMP SHALL ALSO RUN FOR FREEZE PROTECTION

WHENEVER THE OUTSIDE AIR TEMPERATURE IS LESS THAN A USER

DEFINABLE SETPOINT (ADJ.).

THE CHILLED WATER PUMP SHALL START PRIOR TO THE CHILLER BEING

ENABLED AND SHALL STOP ONLY AFTER THE CHILLER IS DISABLED. THE

CHILLED WATER PUMP SHALL THEREFORE HAVE:

• A USER ADJUSTABLE DELAY ON START.

• AND A USER ADJUSTABLE DELAY ON STOP.

THE DELAY TIMES SHALL BE SET APPROPRIATELY TO ALLOW FOR ORDERLY

CHILLED WATER SYSTEM START-UP, SHUTDOWN AND SEQUENCING.

ALARMS SHALL BE PROVIDED AS FOLLOWS:

• CHILLED WATER PUMP FAILURE: COMMANDED ON, BUT THE STATUS IS

OFF.

• CHILLED WATER PUMP RUNNING IN HAND: COMMANDED OFF, BUT THE

STATUS IS ON.

• CHILLED WATER PUMP RUNTIME EXCEEDED: STATUS RUNTIME

EXCEEDS A USER DEFINABLE LIMIT.

CHILLED WATER BYPASS VALVE - MINIMUM FLOW CONTROL:

THE CONTROLLER SHALL MEASURE CHILLED WATER FLOW THROUGH THE

CHILLER AND, AS THE CHILLED WATER FLOW DROPS BELOW SETPOINT, THE

CONTROLLER SHALL MODULATE THE CHILLED WATER BYPASS VALVE OPEN TO

MAINTAIN THE MINIMUM CHILLED WATER FLOW SETPOINT.

ALARMS SHALL BE PROVIDED AS FOLLOWS:

• LOW CHILLED WATER FLOW: IF THE CHILLED WATER FLOW IS 25%  LESS

THAN SETPOINT.

CONDENSER WATER PUMP:

THE CONDENSER WATER PUMP SHALL RUN ANYTIME THE CHILLER IS CALLED TO

RUN.

THE CONDENSER WATER PUMP SHALL START PRIOR TO THE CHILLER BEING

ENABLED AND SHALL STOP ONLY AFTER THE CHILLER IS DISABLED. THE

CONDENSER WATER PUMP SHALL THEREFORE HAVE:

• A USER ADJUSTABLE DELAY ON START.

• AND A USER ADJUSTABLE DELAY ON STOP.

THE DELAY TIMES SHALL BE SET APPROPRIATELY TO ALLOW FOR ORDERLY

CHILLED WATER SYSTEM START-UP, SHUTDOWN AND SEQUENCING.

ALARMS SHALL BE PROVIDED AS FOLLOWS:

• CONDENSER WATER PUMP FAILURE: COMMANDED ON, BUT THE STATUS

IS OFF.

• CONDENSER WATER PUMP RUNNING IN HAND: COMMANDED OFF, BUT

THE STATUS IS ON.

• CONDENSER WATER PUMP RUNTIME EXCEEDED: STATUS RUNTIME

EXCEEDS A USER DEFINABLE LIMIT.

CHILLER:

THE CHILLER SHALL BE ENABLED A USER ADJUSTABLE TIME AFTER PUMP

STATUSES ARE PROVEN ON. THE CHILLER SHALL THEREFORE HAVE A

USER ADJUSTABLE DELAY ON START.

THE DELAY TIME SHALL BE SET APPROPRIATELY TO ALLOW FOR ORDERLY

CHILLED WATER SYSTEM START-UP, SHUTDOWN AND SEQUENCING.

THE CHILLER SHALL RUN SUBJECT TO ITS OWN INTERNAL SAFETIES AND

CONTROLS.

ALARMS SHALL BE PROVIDED AS FOLLOWS:

• CHILLER FAILURE: COMMANDED ON, BUT THE STATUS IS OFF.

• CHILLER RUNNING IN HAND: COMMANDED OFF, BUT THE STATUS IS ON.

• CHILLER RUNTIME EXCEEDED: STATUS RUNTIME EXCEEDS A USER

DEFINABLE LIMIT.

CHILLER CHILLED WATER SUPPLY SETPOINT:

THE CHILLER SHALL MAINTAIN A CHILLED WATER SUPPLY

TEMPERATURE SETPOINT AS DETERMINED BY ITS OWN INTERNAL CONTROLS

(PROVIDED BY OTHERS).

CHILLED WATER TEMPERATURE MONITORING:

THE FOLLOWING TEMPERATURES SHALL BE MONITORED:

• CHILLED WATER SUPPLY.

• CHILLED WATER RETURN.

ALARMS SHALL BE PROVIDED AS FOLLOWS:

• HIGH CHILLED WATER SUPPLY TEMP: IF THE CHILLED WATER SUPPLY

TEMPERATURE IS GREATER THAN 55°F (ADJ.).

• LOW CHILLED WATER SUPPLY TEMP: IF THE CHILLED WATER SUPPLY

TEMPERATURE IS LESS THAN 38°F (ADJ.).

CONDENSER WATER TEMPERATURE MONITORING:

THE FOLLOWING TEMPERATURES SHALL BE MONITORED:

• CONDENSER WATER SUPPLY TEMPERATURE.

• CONDENSER WATER RETURN TEMPERATURE.

ALARMS SHALL BE PROVIDED AS FOLLOWS:

• HIGH CONDENSER WATER SUPPLY TEMP: IF THE CONDENSER WATER

SUPPLY TEMPERATURE IS GREATER THAN 86°F (ADJ.).

• LOW CONDENSER WATER SUPPLY TEMP: IF THE CONDENSER WATER

SUPPLY TEMPERATURE IS LESS THAN 65°F (ADJ.).

 

• HIGH CONDENSER WATER RETURN TEMP: IF THE CONDENSER WATER

RETURN TEMPERATURE IS GREATER THAN 100°F (ADJ.).

• LOW CONDENSER WATER RETURN TEMP: IF THE CONDENSER WATER

RETURN TEMPERATURE IS LESS THAN 75°F (ADJ.).

CONTROLS LEGEND

ANALOG INPUT POINT

DIGITAL INPUT POINT

ANALOG OUTPUT POINT

DIGITAL OUTPUT POINT

2 WAY CONTROL VALVE

3 WAY CONTROL VALVE

TEMPERATURE PORT

MOTOR

CURRENT TRANSDUCER PUMP

PUMP

FLOW METER

FREEZESTAT

DAMPER

STATUS SWITCH

AI1

DI1

A01

D01

S

S

T

M

CT

T

S

S

A01

PURGE FAN ENABLE/DISABLED05

DI7

DI8

DI9

CONDENSER STATUS

EVAPORATOR STATUS

PURGE FAN STATUS

DP

D17

DP

D18

D06

DI9

D05

VFD

CONTROLS CONTRACTOR SHALL

SUPPLY AND INSTALL NEW VFD

FOR EXISTING FAN

AI8

AI8CONDENSER WATER FLOW

VALVE IS ETR

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UP

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NO

RFO

LK, V

IRG

INIA

HU

NTE

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AR

E C

HIL

LER

REP

LAC

EMEN

T91

0 B

ALL

LEN

TIN

E B

LVD

NO

RFO

LK, V

IRG

INIA

M301

MEC

HA

NIC

AL

CO

NTR

OL

DIA

GR

AM

S

MAKE-UP AIR UNIT CONTROL DIAGRAM

NO SCALE

HEATING VALVE

MAKE-UP AIR UNIT

LOCAL DDC CONTROLLER

AN

ALO

G

DIG

IT

AL

D01

OUTPUTS

A01

DIG

IT

AL

DI1

DI2

AN

AL

OG

AI1

INPUTS

PREFILTER DIFFERENTIAL PRESSURE

DI3

AI2SUPPLY AIR TEMP

AI3SUPPLY AIR TEMP SETPOINT

OUTSIDE AIR DAMPER STATUS

FREEZESTAT

SUPPLY FAN STATUS

H L

OA SA

M

Starter

CT

TS

HWS

HWR

M

T

HW

N.C.

DX

D02

D03

D04

COOLING STAGE 1

COOLING STAGE 2

OUTSIDE AIR DAMPER

SUPPLY FAN START/STOP

A01

DI3

D04

D01

D02

DI1

AI2

AI1

DI2

D03

1. MAKEUP AIR UNIT - SUPPLY AIR TEMP (TYPICAL OF 1)

RUN CONDITIONS - CONTINUOUS:

THE UNIT SHALL RUN CONTINUOUSLY.

FREEZE PROTECTION:

THE UNIT SHALL SHUT DOWN AND GENERATE AN ALARM UPON RECEIVING A

FREEZESTAT STATUS.

OUTSIDE AIR DAMPER:

THE OUTSIDE AIR DAMPER SHALL OPEN ANYTIME THE UNIT RUNS AND SHALL

CLOSE ANYTIME THE UNIT STOPS. THE SUPPLY FAN SHALL START ONLY AFTER

THE DAMPER STATUS HAS PROVEN THE DAMPER IS OPEN. THE OUTSIDE AIR

DAMPER SHALL CLOSE 4SEC (ADJ.) AFTER THE SUPPLY FAN STOPS.

ALARMS SHALL BE PROVIDED AS FOLLOWS:

• OUTSIDE AIR DAMPER FAILURE: COMMANDED OPEN, BUT THE STATUS IS

CLOSED.

• OUTSIDE AIR DAMPER IN HAND: COMMANDED CLOSED, BUT THE STATUS

IS OPEN.

SUPPLY FAN:

THE SUPPLY FAN SHALL RUN ANYTIME THE UNIT IS COMMANDED TO RUN. TO

PREVENT SHORT CYCLING, THE SUPPLY FAN SHALL HAVE A USER DEFINABLE

(ADJ.) MINIMUM RUNTIME, UNLESS SHUTDOWN ON SAFETIES.

ALARMS SHALL BE PROVIDED AS FOLLOWS:

• SUPPLY FAN FAILURE: COMMANDED ON, BUT THE STATUS IS OFF.

• SUPPLY FAN IN HAND: COMMANDED OFF, BUT THE STATUS IS ON.

• SUPPLY FAN RUNTIME EXCEEDED: STATUS RUNTIME EXCEEDS A USER

DEFINABLE LIMIT (ADJ.).

SUPPLY AIR TEMPERATURE SETPOINT - FIXED:

THE CONTROLLER SHALL MONITOR THE SUPPLY AIR TEMPERATURE AND SHALL

MAINTAIN A FIXED SUPPLY AIR TEMPERATURE SETPOINT OF 55°F (ADJ.).

COOLING STAGES:

THE CONTROLLER SHALL MEASURE THE SUPPLY AIR TEMPERATURE AND STAGE

THE COOLING TO MAINTAIN ITS COOLING SETPOINT. TO PREVENT SHORT

CYCLING, THERE SHALL BE A USER DEFINABLE (ADJ.) DELAY BETWEEN STAGES,

AND EACH STAGE SHALL HAVE A USER DEFINABLE (ADJ.) MINIMUM RUNTIME.

THE COOLING SHALL BE ENABLED WHENEVER:

• OUTSIDE AIR TEMPERATURE IS GREATER THAN 60°F  (ADJ.).

• AND THE SUPPLY AIR TEMPERATURE IS ABOVE COOLING SETPOINT.

• AND THE FAN STATUS IS ON.

HEATING COIL VALVE:

THE CONTROLLER SHALL MEASURE THE SUPPLY AIR TEMPERATURE AND

MODULATE THE HEATING COIL VALVE TO MAINTAIN ITS HEATING SETPOINT.

THE HEATING SHALL BE ENABLED WHENEVER:

• OUTSIDE AIR TEMPERATURE IS LESS THAN 65°F (ADJ.).

• AND THE SUPPLY AIR TEMPERATURE IS BELOW HEATING SETPOINT.

• AND THE FAN STATUS IS ON.

THE HEATING COIL VALVE SHALL OPEN TO 100% (ADJ.) WHENEVER THE

FREEZESTAT IS ON.

PREFILTER DIFFERENTIAL PRESSURE MONITOR:

THE CONTROLLER SHALL MONITOR THE DIFFERENTIAL PRESSURE ACROSS THE

PREFILTER.

ALARMS SHALL BE PROVIDED AS FOLLOWS:

• PREFILTER CHANGE REQUIRED: PREFILTER DIFFERENTIAL PRESSURE

EXCEEDS A USER DEFINABLE LIMIT (ADJ.).

SUPPLY AIR TEMPERATURE:

THE CONTROLLER SHALL MONITOR THE SUPPLY AIR TEMPERATURE. 

ALARMS SHALL BE PROVIDED AS FOLLOWS:

• HIGH SUPPLY AIR TEMP: IF THE SUPPLY AIR TEMPERATURE IS GREATER

THAN 120°F (ADJ.).

• LOW SUPPLY AIR TEMP: IF THE SUPPLY AIR TEMPERATURE IS LESS

THAN 45°F (ADJ.).

DAMPER AND SMOKE

DETECTOR ARE ETR -

PROVIDE NEW

CONTROL POINTS

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EMEN

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LVD

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INIA

M302

MEC

HA

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AL

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OL

DIA

GR

AM

S

POWER SYSTEM LEGEND

LIGHT AND SOLID INDICATES EXISTING TO REMAIN

HEAVY AND DASHED INDICATES EXISTING TO BE

DEMOLISHED.

HEAVY AND SOLID INDICATED NEW TO BE PROVIDED.

LINE TYPE LEGEND

1. UNLESS SPECIFICALLY NOTED TO BE EXISTING, ALL WORK AND MATERIAL

SHOWN IS NEW AND SHALL BE PROVIDED BY THE CONTRACTOR. WHEREVER A

"NEW TO EXISTING" ELECTRICAL CONNECTION IS REQUIRED, PROVIDE ALL

ACCESSORIES, SPLICES, CONDUIT, FITTINGS, AND MISCELLANEOUS

HARDWARE AND COMPONENTS AS NECESSARY TO EFFECT THE

CONNECTIONS. PROVIDE ALL DRILLING, CUTTING AND PATCHING OF THE

EXISTING BUILDING STRUCTURE AS NECESSARY TO PROPERLY INSTALL

ELECTRICAL CONDUITS AND ALL MATERIALS PROVIDED UNDER THE

CONTRACT.

2. THE CONSTRUCTION CONTRACT DRAWINGS ARE BASED UPON AS-BUILT

DRAWINGS AND VISUAL FIELD OBSERVATIONS AND WITHOUT DE-ENERGIZING

ANY ELECTRICAL CIRCUITS AS REQUIRED TO OBTAIN DETAILED INFORMATION.

THE CONTRACTOR SHALL FAMILIARIZE HIMSELF WITH THE EXISTING

CONDITIONS IN ORDER TO AVOID CONFLICTS AND TO VERIFY THE ACTUAL

EXISTING CONDITIONS OF ALL AFFECTED CIRCUITRY AND EQUIPMENT. THE

CONTRACTOR SHALL BE RESPONSIBLE FOR DETERMINING THE ACTUAL SIZES

AND TYPES OF EXISTING CONDUCTORS AND CONDUITS THAT ARE BEING

EXTENDED AS PART OF THE CONTRACT.

3. ALL WORK IN THE BUILDING SHALL BE SCHEDULED AT TIMES THAT ARE

CONVENIENT AND ACCEPTABLE TO THE OWNER. ENTIRE FACILITY SHALL

REMAIN OPERATIONAL DURING THE ENTIRE CONSTRUCTION PERIOD. ALL

REQUIRED POWER OUTAGES SHALL BE PLANNED AHEAD OF TIME SO THAT

THE DURATION OF EACH OUTAGE IS MINIMIZED. PROVIDE ALL NEW

CONSTRUCTION TO THE FULLEST EXTENT POSSIBLE PRIOR TO ANY GIVEN

OUTAGE. WHERE A UTILITY COMPANY IS REQUIRED TO SHUTDOWN OR

DE-ENERGIZE THEIR SYSTEM, THE CONTRACTOR SHALL BE RESPONSIBLE FOR

CONTACTING THE RESPECTIVE UTILITY COMPANY AND COORDINATING ALL

ASSOCIATED EFFORTS. PROVIDE WRITTEN NOTICE TO THE OWNER OF ANY

PLANNED POWER OUTAGE. NOTICE SHALL BE GIVEN TO THE OWNER A

MINIMUM OF FOURTEEN DAYS PRIOR TO PLANNED OUTAGE. NO OUTAGE

SHALL BE ALLOWED UNLESS SPECIFICALLY APPROVED IN WRITING BY THE

OWNER.

4. NEW CONDUIT PENETRATIONS THROUGH BLOCK, BRICK AND/OR CONCRETE

WALLS, FLOORS AND OTHER SIMILAR CONSTRUCTION SHALL BE

ACCOMPLISHED BY DRILLING THE ASSOCIATED STRUCTURES. HOLES LARGER

THAN ONE INCH SHALL BE CORE DRILLED. SEAL AND CAULK AROUND ALL

CONDUIT PENETRATIONS. PROVIDE PROPERLY RATED FIRE SEALS FOR ALL

CONDUITS THAT PENETRATE FIRE RATED CONSTRUCTION. EXTERIOR WALL

PENETRATIONS SHALL BE WATERPROOF.

5. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL CUTTING AND PATCHING OF

ALL INTERIOR AND EXTERIOR SURFACES REQUIRED FOR PROPER

INSTALLATION. ALL FINISHES SHALL BE REPAIRED AND PAINTED TO MATCH

EXISTING SURROUNDING FINISHES.

GENERAL ELECTRICAL NOTES

ABBREVIATIONS

PHASE

AMPERES

ABOVE FINISHED FLOOR

BREAKER

CONDUIT

CIRCUIT

GROUND

KILO-AMPS INTERRUPTING CAPACITY

THOUSANDS CIRCULAR MILS

SWITCHBOARD

Ø

A

AFF

BKR

C

CKT

GND

KAIC

KCMIL

SWBD

1. IT SHALL BE THE ELECTRICAL CONTRACTOR'S RESPONSIBILITY TO PROTECT

AND RETAIN POWER TO ALL EXISTING ACTIVE EQUIPMENT WHICH SHALL

REMAIN.

2. DISCONNECT, REMOVE OR RELOCATE ALL ELECTRICAL MATERIAL AND

EQUIPMENT THAT INTERFERES WITH NEW INSTALLATION. THIS INCLUDES, BUT

IS NOT LIMITED TO CONDUITS, PANELS, LIGHTING FIXTURES, WIRING DEVICES,

SIGNAL EQUIPMENT, EXHAUST FANS, BASEBOARD HEATERS, UNIT HEATERS,

ETC. REMOVE ALL CONDUIT AND WIRING OF INACTIVE CIRCUITS COMPLETE

BACK TO THEIR ORIGIN AT THE ASSOCIATED PANELBOARD UNLESS OTHERWISE

NOTED.

3. REMOVE ALL CONDUIT, WIRE, BOXES AND FASTENING DEVICES AS REQUIRED

TO AVOID ANY INTERFERENCE WITH NEW INSTALLATION. CONDUITS MAY BE

ABANDONED IN FLOOR AND WALLS ONLY. ELECTRICAL CONTRACTOR SHALL

REMOVE ALL WIRING FROM ABANDONED CONDUITS, DISCONNECT FROM ALL

POWER SOURCES AND PROVIDE STAINLESS STEEL BLANK PLATES ON ALL

ABANDONED OUTLETS. CUT OFF ABANDONED CONDUITS 1" BELOW FINISHED

FLOOR AND GROUT FLUSH. ABANDONED CONDUIT SHALL BE CAPPED AT BOTH

ENDS.

4. ELECTRICAL CONTRACTOR SHALL RECONNECT ANY EQUIPMENT BEING

DISTURBED BY THE RENOVATION YET REQUIRED FOR CONTINUED SERVICE TO

SAME PANEL.

5. ELECTRICAL CONTRACTOR SHALL RING OUT ALL CIRCUITS IN EXISTING PANELS

AFFECTED BY THIS ALTERATION. NEW, TYPED PANELBOARD SCHEDULES SHALL

BE PROVIDED FOR ALL PANELS AFFECTED BY THIS ALTERATION.

6. REMOVE ALL EXISTING DEVICES AS INDICATED AND/OR REQUIRED TO CLEAR

AREA FOR NEW INSTALLATION.

7. COORDINATE WORK SCHEDULE IN EXISTING BUILDING WITH OWNER'S

REPRESENTATIVE.

8. ANY ELECTRICAL OUTAGES REQUIRED BY THE WORK SHALL BE COORDINATED

WITH OWNER'S REPRESENTATIVE AND CONFIRMED IN WRITING. ANY OUTAGE

SHALL NOT BE SCHEDULED DURING NORMAL BUSINESS HOURS AND ALL COSTS

FOR OVERTIME SHALL BE INCLUDED IN THE BID.

9. ANY DAMAGE DONE TO THE EXISTING BUILDING BY THE CONTRACTOR SHALL BE

REPAIRED BY THE CONTRACTOR TO THE SATISFACTION OF THE OWNER AT NO

ADDITIONAL CHARGE.

10. ALL BREAKERS AND THEIR ASSOCIATED HARDWARE NOT BEING REUSED SHALL

BE CAREFULLY REMOVED AND TURNED OVER TO THE OWNER IN THE SAME

CONDITION IN WHICH IT WAS FOUND, OR LABELED AS 'SPARE' WHERE

REMAINING INSTALLED IN THE EXISTING PANELBOARD.

GENERAL DEMOLITION NOTES

PANELBOARD, 208Y/120 VOLT, 3 PHASE, 4 WIRE, SOLID

NEUTRAL.

BRANCH CIRCUITS CONDUCTORS IN CONDUIT, RUN

CONCEALED IN WALLS UNDERGROUND AND ABOVE CEILING

EXCEPT IN EXPOSED CONSTRUCTION AREAS. REFER TO

PANELBOARD SCHEDULES FOR CONDUCTOR SIZES.

PROVIDE A GROUND WIRE IN ALL CIRCUITS.

HOMERUN TO PANELBOARD, PANELBOARD AND CIRCUIT

DESIGNATION AS INDICATED.

EQUIPMENT CONNECTION.

JUNCTION BOX WITH BLANK COVERPLATE.

DISCONNECT SWITCH, 240 OR 600 VOLTS AS REQUIRED,

AMPS AND POLES, FUSING AS NOTED. 3P = NUMBER OF

POLES, 60 = SWITCH AMPERE RATING, 40 = FUSE AMPERE

RATING (NF = NON-FUSED), 3R = ENCLOSURE NEMA RATING

IF OTHER THAN NEMA 1.

MOTOR STARTER WITH SOLID STATE OVERLOAD RELAYS.

E

MEQ-17

60

40

3P 3R

J J

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LAC

EMEN

T91

0 B

ALL

LEN

TIN

E B

LVD

NO

RFO

LK, V

IRG

INIA

E001

ELEC

TRIC

AL

LEG

END

S, N

OTE

S A

ND

SC

HED

ULE

S

DISCONNECT EXISTING CHILLER. REMOVE CIRCUITING AS INDICATED.

REMOVE EXISTING FUSES IN DISCONNECT SWITCH.

REMOVE EXISTING DISCONNECT SWITCH. CIRCUITING SHALL REMAIN FOR

CONNECTION OF NEW DISCONNECT SWITCH IN EXISTING LOCATION. REMOVE FUSES

FROM DISCONNECT SWITCH AND STORE FOR INSTALLATION IN NEW DISCONNECT

SWITCH.

DISCONNECT EXISTING REFRIGERANT MONITORING SYSTEM. CIRCUITING SHALL

REMAIN FOR CONNECTION OF NEW REFRIGERANT MONITORING SYSTEM IN EXISTING

LOCATION.

DISCONNECT EXISTING PUMP, PA-12. CIRCUITING SHALL REMAIN FOR CONNECTION

OF PUMP AT NEW LOCATION.

1

DEMOLITION NOTES THIS SHEET

1

2

HUNTER SQUARE MECHANICAL ROOM - ELECTRICAL DEMOLITION PLAN

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

EXISTING GATE (ACCESS

FOR CHILLER REMOVAL)

EXISTING ROLL-UPDOOR

3

3

E

J

EXISTING MAIN SWITCHBOARD

1/4" = 1'-0"

5' 0 5' 10'

3

2

GRAPHIC SCALE

AREA OF WORK

KEYPLAN

NO SCALE

PA-12

4

E

4

5

5

60

*

3P

60

*

3P

BO

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INIA

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T91

0 B

ALL

LEN

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LVD

NO

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IRG

INIA

ED101

HU

NTE

R S

QU

AR

E EL

ECTR

ICA

L D

EMO

LITI

ON

PLA

N

NOTES THIS SHEET

DISCONNECT EXISTING DEDICATED OUTSIDE AIR UNIT. REMOVE EXISTING STARTER AND DISCONNECT

SWITCH. REMOVE CIRCUITING BACK TO PANEL.

DISCONNECT EXISTING CONDENSING UNIT. REMOVE EXISTING DISCONNECT SWITCH. REMOVE

CIRCUITING BACK TO PANEL.

BOBBITT FIRST FLOOR ELECTRICAL PLAN

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

MUA-1

ED102 ED102

E

MEQ-17

MAIN SWITCHBOARD SWBD

PANEL MEQ

PANEL MEQ2

1" = 10'-0"

10' 5' 0 10' 20' 30'

1/4" = 1'-0"

5' 0 5' 10'

1

2

1

GRAPHIC SCALE

30

**

3P

BOBBITT SITE ELECTRICAL PLAN

SCALE: 1" = 10'-0"

E

2

MSB-2

200

**

3P 3R

ED102 ED102

BO

BB

ITT

MA

KE-

UP

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AN

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NO

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IRG

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NTE

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EMEN

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0 B

ALL

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LVD

NO

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INIA

ED102

BO

BB

IT E

LEC

TRIC

AL

DEM

OLI

TIO

N P

LAN

S

COOLING TOWER, ETR

EXISTING GATE (ACCESS

FOR CHILLER REMOVAL)

EXISTING ROLL-UPDOOR

E

J

EXISTING MAIN SWITCHBOARD

30

**

3P 3R

60

**

3P 3R

HUNTER SQUARE MECHANICAL ROOM - ELECTRICAL NEW WORK PLAN

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

CONNECT NEW CHILLER AT EXISTING LOCATION WITH FOUR 350 KCMIL AND ONE #4

GROUND IN 3" CONDUIT.

PROVIDE NEW 300 AMP FUSES IN EXISTING DISCONNECT SWITCH. EXISTING

DISCONNECT SWITCH IS A SIEMENS I-T-E ENCLOSED HEAVY DUTY DISCONNECT

SWITCH CAT NO F355 SERIES B.

NEW DISCONNECT SWITCH AT EXISTING LOCATION. EXTEND AND REWORK

CIRCUITING AS NECESSARY. INSTALL EXISTING FUSES SAVED DURING DEMOLITION.

CONNECT NEW REFRIGERANT MONITORING SYSTEM AT EXISTING LOCATION.

EXTEND AND REWORK WIRING AS NECESSARY.

CONNECT EXISTING PUMP AT RELOCATED LOCATION. EXTEND AND REWORK

CIRCUITING AS NECESSARY.

DEMOLITION NOTES THIS SHEET

1/4" = 1'-0"

5' 0 5' 10'

1

2

3

3

1

3

2

GRAPHIC SCALE

AREA OF WORK

KEYPLAN

NO SCALE

E

4

5

4

5J

BO

BB

ITT

MA

KE-

UP

AIR

AN

D

NO

RFO

LK, V

IRG

INIA

HU

NTE

R S

QU

AR

E C

HIL

LER

REP

LAC

EMEN

T91

0 B

ALL

LEN

TIN

E B

LVD

NO

RFO

LK, V

IRG

INIA

E101

HU

NTE

R S

QU

AR

E EL

ECTR

ICA

L N

EW W

OR

K P

LAN

NOTES THIS SHEET

CONNECT NEW MAKE UP AIR UNIT. EXTEND AND REWORK CIRCUITING AS NECESSARY.

CONNECT NEW CONDENSING UNIT. EXTEND AND REWORK CIRCUITING AS NECESSARY.

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

E

SWBD-16

MAIN SWITCHBOARD

PANEL MEQ

PANEL MEQ2

1" = 10'-0"

10' 5' 0 10' 20' 30'

1/4" = 1'-0"

5' 0 5' 10'

1

2

MUA-1

1

100

NF

3P 3R

GRAPHIC SCALE

BOBBITT ELECTRICAL NEW WORK PLAN

ED102 ED102

SCALE: 1" = 10'-0"

E

MEQ-17

60

35

3P 3R

2

BOBBITT SITE ELECTRICAL PLAN

ED102 ED102

BO

BB

ITT

MA

KE-

UP

AIR

AN

D

NO

RFO

LK, V

IRG

INIA

HU

NTE

R S

QU

AR

E C

HIL

LER

REP

LAC

EMEN

T91

0 B

ALL

LEN

TIN

E B

LVD

NO

RFO

LK, V

IRG

INIA

E102

BO

BB

IT E

LEC

TRIC

AL

NEW

WO

RK

PLA

NS