154-B5154-003_DMV Widgeon CSC-Drawings_Final Bid Set.pdf

PROJECT CODE

RFS JOB #

OF

DATE

D

ES

C R

IP

TI

O N

R

EV

IS

IO

N S

D A

TE

D

M V

W

ID

G

EO

N C

SC

H

VA

C R

EP

LA

C

EM

EN

T

W

ID

G

EO

N R

O A

D N

O R

FO

LK

, V A

2026-039

09/17/26

T

IT

L E S

H E E T

OF

DATE

D

ES

C R

IP

TI

O N

R

EV

IS

IO

N S

D A

TE

D

M V

W

ID

G

EO

N C

SC

H

VA

C R

EP

LA

C

EM

EN

T

W

ID

G

EO

N R

O A

D N

O R

FO

LK

, V A

2026-039

09/17/26

E N

L A

R G

E D

D E M

O L

IT

IO

N

N

E W

W O

R K

F L O

O R

P L A

N S

GENERAL NOTES

DEMOLITION

EXISTING HVAC PIPING, DUCTWORK, AND EQUIPMENT SHOWN IS BASED ON EXISTING PLANS

AND FIELD OBSERVATION WITHOUT DEMOLITION. AFTER DEMOLITION, ANY CLARIFICATION

REQUIRED TO DETERMINE SCOPE OF WORK SHALL BE BROUGHT TO THE ATTENTION OF THE

ARCHITECT.

THE CONTRACTOR SHALL VISIT THE JOB SITE AND THOROUGHLY FAMILIARIZE HIMSELF WITH

THE EXISTING CONDITIONS.

DRAWINGS DO NOT SHOW EVERY EXISTING PIPE, CONDUIT, DUCT, ETC. CONTRACTOR SHALL

TAKE CARE TO REMOVE ONLY ITEMS REQUIRED TO BE REMOVED AND VERIFY PIPES, DUCTS,

ETC. BEFORE REMOVAL.

REMOVAL OF ITEMS SHALL INCLUDE ASSOCIATED HANGERS, ANCHOR BOLTS AND OTHER

APPURTENANCES. WHERE SUCH REMOVAL RESULTS IN OPEN HOLES, VOIDS OR EXPOSURE

OF DAMAGED SURFACES, THE CONTRACTOR SHALL BE RESPONSIBLE FOR REPAIRING AND

FINISHING THE SURFACE TO MATCH ADJACENT CONDITIONS. THIS WORK SHALL BE

COORDINATED WITH ARCHITECTURAL FINISH SCHEDULES WHERE APPLICABLE.

BUILDING IS TO REMAIN OCCUPIED DURING CONSTRUCTION. REMOVAL OR SHUT-DOWN OF

EQUIPMENT THAT AFFECTS ANY OCCUPIED AREA'S AIR CONDITIONING OR HEATING SHALL

ONLY BE DONE AS APPROVED OR TEMPORARY AIR CONDITIONING OR HEATING SHALL BE

PROVIDED AT CONTRACTOR'S EXPENSE. THIS MAY REQUIRE NIGHT AND WEEKEND WORK TO

KEEP BUILDING IN OPERATION.

REMOVE EXISTING DUCTWORK AND PIPING NOT TO BE REUSED.

ALL MATERIALS REMOVED UNDER DEMOLITION, NOT TO BE RELOCATED OR DESIGNATED TO

BE TURNED OVER TO THE OWNER, SHALL BECOME THE PROPERTY OF THE CONTRACTOR,

UNLESS OTHERWISE NOTED, AND SHALL BE REMOVED COMPLETELY FROM THE SITE.

GENERAL ITEMS

GENERAL NOTES ON THIS DRAWING ARE APPLICABLE TO EACH HVAC DRAWING OF THIS SET.

SEE EACH DRAWING FOR SPECIFIC NOTES APPLICABLE TO THAT DRAWING.

OVERHEAD PIPING IN SPACES WITHOUT HUNG CEILINGS SHALL BE RUN AS CLOSE TO ROOF

DECK OR STRUCTURE ABOVE, AS PRACTICAL, AS CLOSE TO PARALLEL JOISTS AS POSSIBLE

AND ABOVE LIGHTING FIXTURES TO CONCEAL PIPING.

OVERHEAD DUCTWORK AND PIPING IN SPACES WITH CEILINGS SHALL BE CONCEALED

UNLESS OTHERWISE NOTED.

PROVIDE PIPE SLEEVES LARGE ENOUGH TO ALLOW FOR REQUIRED LATERAL MOVEMENT OF

PIPING.

CONTRACTOR SHALL VERIFY REQUIRED REFRIGERANT PIPE SIZES AND QUANTITIES WITH

EQUIPMENT MANUFACTURER FOR THE INDICATED INSTALLATION.

COORDINATE LOCATION AND INSTALLATION OF EQUIPMENT WITH OTHER TRADES.

DO NOT SCALE DRAWINGS. SEE ARCHITECTURAL DRAWINGS FOR EXACT LOCATIONS OF

DOORS, WINDOWS, ETC.

PIPING, DUCTWORK, VENTS, ETC., EXTENDING THROUGH EXTERIOR WALLS AND ROOF

SHALL BE FLASHED AND COUNTER FLASHED IN A WEATHERPROOF MANNER.

VALVES AND SPECIALTIES SHALL BE LINE SIZE EXCEPT FOR CONTROL VALVES OR UNLESS

NOTED OTHERWISE.

EXTEND DRAIN LINES AS INDICATED. ROUTING SHALL NOT INTERFERE WITH PASSAGEWAYS

AND MAINTENANCE. DRAINS FROM AIR CONDITIONING CONDENSATE DRAIN PANS SHALL BE

TRAPPED. SLOPE CONDENSATE DRAIN PIPING AT 1/4" PER FOOT. VERIFY INVERT IS

ESTABLISHED AFTER AIR HANDLING UNIT IS INSTALLED BUT PRIOR TO DUCTWORK

INSTALLATION.

PIPING AND DUCTWORK INSULATION SHALL BE RUN CONTINUOUSLY THROUGH NON-RATED

FLOORS, WALLS, ROOF AND PARTITIONS, UNLESS OTHERWISE INDICATED.

NO PIPING SHALL BE SMALLER THAN 3/4" UNLESS OTHERWISE NOTED.

LOCATE AND SIZE CONCRETE PADS AND CURBS FOR MECHANICAL EQUIPMENT IN

ACCORDANCE WITH ACTUAL EQUIPMENT PURCHASED.

THROUGH-PENETRATION FIRESTOP ASSEMBLIES

PROVIDE UL LISTED THROUGH-PENETRATION ASSEMBLIES FOR FIRE RATED PARTITIONS,

WALLS, AND FLOORS. REVIEW ARCHITECTURAL DRAWINGS FOR FIRE PARTITION LOCATIONS

AND UL LISTINGS.

SHEET METAL

PROVIDE ACCESS DOORS IN DUCTWORK WHERE INDICATED OR REQUIRED FOR ACCESS TO

SYSTEM COMPONENTS INCLUDING THE FOLLOWING:

DAMPER MOTORS AND/OR MOTOR OPERATED DAMPERS

FILTERS

BOTH SIDES OF HEATING AND COOLING COILS

SMOKE DETECTORS

PROVIDE A MINIMUM OF THREE TIMES THE FAN DIAMETER OF STRAIGHT DUCTWORK OFF

THE SUPPLY AIR FAN DISCHARGE BEFORE ANY TAKEOFFS OR ELBOWS.

A2L PIPING REQUIREMENTS

REFRIGERANT PIPING LOCATED IN AREAS OTHER THAN THE ROOM OR SPACE WHERE THE

REFRIGERATING EQUIPMENT IS LOCATED SHALL BE LABELED. THE PERMANENT PIPE LABELS

SHALL BE LOCATED AT INTERVALS NOT EXCEEDING 20 FEET. MINIMUM TEXT SHALL BE 1/2

INCH AND SHALL INDICATE THE REFRIGERANT DESIGNATION AND SAFETY GROUP

CLASSIFICATION OF REFRIGERANT USED IN THE PIPING SYSTEM AND INCLUDE "DANGER--

RISK OF FIRE OR EXPLOSION. FLAMMABLE REFRIGERANT."

REFRIGERANT PIPING USED WITH GROUP A2L REFRIGERANTS AND LOCATED IN CONCEALED

LOCATIONS WHERE TUBING IS INSTALLED IN STUDS, JOISTS, RAFTERS OR SIMILAR MEMBER

SPACES, AND LOCATED LESS THAN 1-1/2 INCHES FROM THE NEAREST EDGE OF THE

STRUCTURAL MEMBER, SHALL BE CONTINUOUSLY PROTECTED BY SHIELD PLATES.

PROTECTIVE STEEL SHIELD PLATES SHALL HAVE A MINIMUM THICKNESS OF 0.0575 INCH

((NO. 16 GAGE) AND SHALL COVER THE AREA OF THE TUBE PLUS THE AREA EXTENDING NOT

LESS THAN 2 INCHES BEYOND BOTH SIDES OF THE TUBE.

MAINTENANCE

EQUIPMENT WITH FILTERS SHALL BE INSTALLED SO THAT FILTERS CAN BE EASILY REMOVED

AND REPLACED.

PROVIDE ACCESS TO ANY INSPECTION OR MAINTAINABLE DEVICE, EQUIPMENT, ETC. -

ACCESS OR ACCESS DOOR SHALL BE OF ADEQUATE SIZE TO WORK ON DEVICE.

EXAMINE MANUFACTURER'S LITERATURE TO DETERMINE RECOMMENDED CLEARANCES.

THESE CLEARANCES, IN ADDITION TO MINIMUM CLEARANCES REQUIRED BY THE NATIONAL

ELECTRICAL CODE, SHALL BE ESTABLISHED AND MAINTAINED. THIS APPLIES TO NEW AND

EXISTING EQUIPMENT IMPACTED BY THIS PROJECT AS WELL. THE CONTRACTOR SHALL BE

RESPONSIBLE FOR COORDINATING THESE REQUIREMENTS WITH ALL OTHER TRADES.

INTERDISCIPLINARY COORDINATION

IF THIS CONTRACTOR SHOULD ELECT TO PROPOSE ANY EQUIPMENT THAT HAS DIFFERENT

PHYSICAL OR ELECTRICAL CHARACTERISTICS, ETC. WHEN COMPARED TO THE BASIS OF

DESIGN EQUIPMENT, THIS CONTRACTOR IS RESPONSIBLE FOR COORDINATING THESE

CHANGES WITH THE OTHER TRADES PRIOR TO BID AND AGAIN BEFORE ORDERING OF

EQUIPMENT. IF THERE SHOULD BE ANY ADDITIONAL WORK INCURRED BY THE OTHER

TRADES AS A RESULT OF THIS CONTRACTOR'S EQUIPMENT SELECTION, ALL COSTS

ASSOCIATED WITH THE ADDITIONAL WORK SHALL BE BORNE BY THIS CONTRACTOR.

TESTING, ADJUSTING, AND BALANCING (TAB)

AIRSIDE TAB SHALL BE PERFORMED ON ALL DUCTED AND NON-DUCTED HVAC SYSTEMS.

NON-DUCT HVAC SYSTEMS, INCLUDE, BUT ARE NOT LIMITED TO, UNIT HEATERS, CABINET

UNIT HEATERS, BASEBOARD HEATERS, DUCTLESS MINI-SPLITS, DESTRATIFICATION FANS,

LARGE CEILING FANS, INFRARED SPACE HEATERS, AIR CURTAINS, ETC. IT SHALL BE THE

RESPONSIBILITY OF THE TAB CONTRACTOR TO DETERMINE APPROPRIATE TESTING,

ADJUSTING AND BALANCING PROCEDURES FOR SYSTEMS NOT LISTED BY THE PROCEDURAL

STANDARDS CERTIFYING BODY (NEBB, AABC, ETC.).

DUCT TURNING DOWN

MITERED ELBOW WITH TURNING VANES

DUCT TURNING UP

VOLUME DAMPER

SMOKE DETECTOR

MOTORIZED DAMPER

S

M

REFRIGERANT SUCTION/LIQUID PIPINGRS/RL

°F

Ø DIAMETER

DEGREE FAHRENHEIT

L-1 LOUVER DESIGNATION

AIR HANDLING UNIT DESIGNATION

HEAT PUMP DESIGNATIONHP-1

AHU-1

POINT OF DEMOLITION LIMIT

POINT OF CONNECTION NEW TO EXISTING

NEW WORK NOTE DESIGNATION

DEMOLITION NOTE DESIGNATION

LEGEND AND ABBREVIATIONS

EXTERNAL STATIC PRESSURE

ENTERING WATER TEMPERATURE

LEAVING AIR TEMPERATURE

MAX OVERCURRENT PROTECTION

1000 BRITISH THERMAL UNITS PER HOUR

WET BULB TEMPERATURE

PIPE TURNING DOWN

D CONDENSATE DRAIN

DIRECTION OF FLOW

DIRECTION OF PITCH DOWN

RETURN AIRRA

WB

SA SUPPLY AIR

OA

MOCP

MCA

MIN

MBH

OUTSIDE AIR

MIN CIRCUIT AMPACITY

MINIMUM

PIPE TURNING UP LAT

FLA

ESP

EWT

ETR

FULL LOAD AMPS

EXISTING TO REMAIN

ABOVE FINISHED FLOOR

CUBIC FEET PER MINUTE

ENTERING AIR TEMPERATUREEAT

EA

CFM

APPROX

EXHAUST AIR

APPROXIMATELY

AFF

(TYP) TYPICAL

DRY BULB TEMPERATUREDB

FT FEET

IN INCH

SEER SEASONAL ENERGY EFFICIENCY RATING

TSP TOTAL STATIC PRESSURE

VOLTV

SENS SENSIBLE

WATTW

LEAVING DRY BULB TEMPERATURELDB

LEAVING WET BULB TEMPERATURELWB

ENTERING DRY BULB TEMPERATUREEDB

EWB ENTERING WET BULB TEMPERATURE

ENERGY CODE COMPLIANCE PATH

ASHRAE 90.1

VECC CHAPTER 4 - PRESCRIPTIVE

VECC CHAPTER 4 - PERFORMANCE

PIPE CAPPED

DUCTLESS SPLIT SYSTEM DESIGNATIONDSS-1

KW KILOWATT

PROJECT CODE

RFS JOB #

OF

DATE

D E S C

R

IP

T

IO

N

R E V

IS

IO

N S

D A

T E

D M

V W

ID

G

E O

N C

S C

H

V A

C R

E P L A

C E M

E N

T

W

ID

G E O

N R

O A

D N

O R

F O

L K

, V A

2026-039

09/17/26

M001

GE

NE

RA

L N

OT

ES

A

ND

LE

GE

ND

PERFORM AN AIRSIDE PRE-BALANCE (AIRFLOW, TEMPERATURE AND TOTAL

STATIC PRESSURE) ON AHU-1 IN FULL COOLING MODE PRIOR TO ANY

DEMOLITION WORK. SUBMIT PRE-BALANCE DATA TO ARCHITECT.

PRE-TAB NOTE:

DSS, ETR

HP-2, ETR

HP-1

AHU-1

RS/RL, ETR

1-1/4" D

1-1/4" D

ETR-10'-0" x 3'-0" BLANKED OFF INTAKE

LOUVER ETR (BOTTOM AT 7'-0" A.F.F.)

16x14 OA, ETR 20x16 OA, ETR

1-1/4", ETR

AHU-2, ETR

D

26x26

12x12 OA, ETR x1

6 S A, E

TR

x1

8 R A, E

TR

x1

8 S A, E

TR

30x16 RA, ETR

RS/RL

RS/RL, ETR

PAD, ETR

INTAKE LOUVER ETR

26x26, ETR

DOMESTIC WATER

LINES, ETR

T

EXISTING EQUIPMENT YARD

EXISTING STORAGE

EXISTING STORAGE

DSS, ETR

HP-2, ETR

HP-1

AHU-1

1-1/4" D

1-1/4" D

ETR-10'-0" x 3'-0" BLANKED OFF INTAKE

LOUVER ETR (BOTTOM AT 7'-0" A.F.F.)

16x14 OA, ETR 20x16 OA, ETR

1-1/4", ETR

AHU-2, ETR

D

26x26

12x12 OA, ETR x1

6 S A, E

TR

x1

8 R A, E

TR

x1

8 S A, E

TR

30x16 RA, ETR

RS/RL

RS/RL, ETR

PAD, ETR

INTAKE LOUVER ETR

26x26, ETR

T

AHU-12

NEW ACCESS

PANEL

RS/RL, ETR

PROJECT CODE

RFS JOB #

OF

DATE

D E S C

R

IP

T

IO

N

R E V

IS

IO

N S

D A

T E

1/4" = 1'-0" 5' 10'0' 5'

D M

V W

ID

G

E O

N C

S C

H

V A

C R

E P L A

C E M

E N

T

W

ID

G E O

N R

O A

D N

O R

F O

L K

2026-039

09/17/26

M101

PROVIDE DOMESTIC WATER PIPING, INSULATION, HANGERS, AND

SUPPORTS COMPLETE. ROUTE THE WATER LINE TO AVOID PASSING

DIRECTLY ABOVE THE NEW ELECTRICAL PANEL LOCATION.

PROVIDE 7-DAY PROGRAMMABLE SPACE THERMOSTAT WITH

PUSH-BUTTON OVERRIDE AND VENTED LOCK BOX COVER. PROVIDE

CONTROL WIRING FOR AHU-1.

PROVIDE VERTICAL AIR HANDLING UNIT AS SHOWN AND SCHEDULED.

PROVIDE RETURN AIR / OUTSIDE AIR PLENUM FULL SIZE OF UNIT'S

RETURN AIR CONNECTION AS REQUIRED TO MAKE PROPER DUCT

CONNECTIONS.

PROVIDE HEAT PUMP, REFRIGERANT PIPING, AND SUPPORTS. MOUNT

UNIT ON EXISTING CONCRETE PAD.

PROVIDE DUCT TRANSITION TO AIR HANDLING UNIT'S SUPPLY

DISCHARGE, RETURN PLENUM BOX AND OUTDOOR AIR CONNECTION.

PROVIDE TRAPPED CONDENSATE DRAIN PIPING AND RUN TO EXISTING

FLOOR DRAIN LOCATED IN MECHANICAL ROOM. SIZE AS INDICATED.

ROUTE PIPING AS CLOSE TO FACE OF UNIT TO AVOID ANY TRIPPING

HAZARD.

INSTALL NEW SMOKE DETECTOR PROVIDED BY ELECTRICAL

CONTRACTOR.

NOTES THIS SHEET

RECOVER REFRIGERANT FROM SYSTEM. REMOVE AHU PIPING,

SUPPORTS, AND ACCESSORIES COMPLETE. REMOVE EXPOSED

RETURN DUCTWORK, EXPOSED SUPPLY DUCTWORK, AND EXPOSED

OUTDOOR DUCTWORK TO ALLOW INSTALLATION OF NEW AHU

THROUGH ACCESS PANEL. REMOVE AHU AND HP COMPLETE.

REMOVE DOMESTIC WATER LINE TO AVOID PASSING DIRECTLY ABOVE

THE NEW ELECTRICAL PANEL PROVIDED UNDER THE NEW WORK

PHASE.

REMOVE IN-DUCT SMOKE DETECTOR.

REMOVE THERMOSTAT, CONTROL WIRING AND VENTED LOCK BOX

COVER. EXISTING CONTROL WIRING NOT TO BE REUSED.

NOTES THIS SHEET

DEMOLITION WORK

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

NEW WORK

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

ME

CH

AN

IC

AL

D

EM

O

AN

D

NE

W

W

OR

K

REFRIGERANT RECOVERY NOTE:

REFRIGERANT FROM EXISTING MECHANICAL SYSTEMS SHALL BE RECOVERED AND

RECYCLED FOR RECLAIM. EQUIPMENT CAPABLE OF PULLING A VACUUM OF LESS THAN

1000 MICRONS OF MERCURY SHALL BE USED TO RECOVER REFRIGERANT. MECHANICAL

SYSTEMS SHALL NOT BE OPENED TO ATMOSPHERE UNTIL ALL REFRIGERANT IS FULLY

RECOVERED. THE CONTRACTOR SHALL PROVIDE CONTAINERS FOR THE STORAGE OF

THE REFRIGERANT. REFRIGERANT SHALL BECOME THE PROPERTY OF THE CONTRACTOR.

OF

DATE

D E S C

R

IP

T

IO

N

R E V

IS

IO

N S

D A

T E

D M

V W

ID

G

E O

N C

S C

H

V A

C R

E P L A

C E M

E N

T

W

ID

G E O

N R

O A

D N

O R

F O

L K

2026-039

09/17/26

M401

SC

HE

DU

LE

S

AN

D

DE

TA

ILSCONDENSATE DRAIN TRAP DETAIL

NO SCALE

L = H + J + PIPE DIAMETER WHERE:

J = 1/2 H

L = H + J + PIPE DIAMETER WHERE:

H = 1/2 INCH (MINIMUM)

CLEANOUT (TYP. FOR 3)

H

J

L

DRAIN PAN

SEE NOTE 1

1.

2.

NOTES:

DRAIN LINE SHALL BE AT LEAST

THE SAME SIZE AS THE NIPPLE

ON THE DRAIN PAN

PITCH DOWN TOWARD

DRAIN, ROUTE AS

INDICATED ON PLAN

DRAIN PAN TRAPPING FOR SECTION

UNDER NEGATIVE PRESSURE:

DRAIN PAN TRAPPING FOR SECTION UNDER

POSITIVE PRESSURE:

H = 1 INCH FOR EACH INCH OF

NEGATIVE PRESSURE PLUS 1 INCH

J = 1/2 INCH PLUS THE UNIT POSITIVE STATIC

PRESSURE AT COIL DISCHARGE (LOADED FILTERS)

FOR INDOOR AIR HANDLING UNITS, UNITARY AIR CONDITIONERS, AND DEHUMIDIFERS,

PROVIDE RECTORSEAL EZ TRAP 83230 EXT-230 WITH INTEGRAL OVERFLOW SENSOR,

OR APPROVED EQUAL.

FOR ROOF MOUNTED HVAC UNITS, THE CONTRACTOR SHALL PROVIDE MOISTURE

SENSOR IN DRAIN PAN TO DE-ENERGIZE UNIT SHOULD PRIMARY DRAIN GET CLOGGED.

NEW GROUT

ESCUTCHEON

PIPE W/OUT

INSULATION

PIPE W/

INSULATION

INSULATION

NEW GROUT

EXISTING WALL

NOTE: SLEEVES FOR NEW WALLS SIMILAR.

PIPE SLEEVE

BACKFILL

MATERIAL

SEALANT

SEALANT

BACKFILL

MATERIAL

PIPE SLEEVE

EXISTING WALL

PIPE SLEEVE DETAIL

SPLIT SYSTEM DUAL CIRCUIT HEAT PUMP SCHEDULE - AIR TO AIR

SUPPLEMENTAL ELECTRIC ELECTRICAL DATA ELECTRICAL DATA

FAN DATA COOLING DATA HEATING DATA HEATER INDOOR UNIT OUTDOOR UNIT

INDOOR OUTDOOR

TOTAL OA ESP MOTOR TOTAL SENS EDB EWB LDB LWB MIN MIN TOTAL COP COP SIZE MODEL MODEL TAG CFM CFM (IN. WG) BHP MBH MBH (ºF) (ºF) (ºF) (ºF) IEER EER MBH 17ºF DB / 15ºF WB 47ºF DB / 43ºF WB KW STAGES MCA MOCP VOLTS PHASE NUMBER TAG MCA MOCP VOLTS PHASE NUMBER REMARKS

AHU-1 6280 1260 0.9 2.72 256.6 155.4 77.7 68.0 55.9 55.3 12.5 10.0 147.9 2.05 3.2 49.8 2 149.0 150.0 208 3 TWE HP-1 93 125 208 3 TWA SEE NOTES

NOTES:

1. THE DESIGN SHOWN IS BASED ON TRANE TWE/TWA EQUIPMENT WITH REFRIGERANT TYPE R-454B AND IS INTENDED ONLY TO SHOW THE GENERAL SIZE, CONFIGURATION, LOCATION, CONNECTIONS AND SUPPORT FOR EQUIPMENT OR SYSTEMS SPECIFIED WITH RELATION TO THE OTHER BUILDING SYSTEMS.

SEE SPECIFICATION SECTION 238126 SPLIT-SYSTEM AIR-CONDITIONERS FOR TECHNICAL REQUIREMENTS PERTAINING TO THE EQUIPMENT.

2. EXTERNAL STATIC PRESSURE INCLUDES SUPPLY, RETURN AND OUTSIDE AIR DISTRIBUTION SYSTEMS.

3. LEAVING AIR TEMPERATURE IS TO BE PROVIDED AT THE UNIT DISCHARGE, TOTAL AND SENSIBLE CAPACITIES ARE "NET" VALUES TO BE PROVIDED DOWNSTREAM OF THE SUPPLY AIR FAN.

4. PROVIDE AHU-1 WITH DUCT FLANGE KIT, SUBBASE AND RUBBER IN SHEER FLOOR MOUNT ISOLATORS. PROVIDE HP-1 WITH RUBBER IN SHEER ISOLATORS.

5. PROVIDE WITH CONDENSER GUARDS, LOW AMBIENT KIT DOWN TO 0ºF, DEFROST CONTROL, INTEGRAL TIME DELAY BETWEEN COMPRESSORS, REFRIGERANT LEAK DETECTION AND MITIGATION ACTIONS.

6. PROVIDE HP-1 WITH TWO DIRECT DRIVE HERMETIC SCROLL COMPRESSORS WITH MINIMUM 2 STAGES OF COOLING AND HEATING, STAND ALONE DISCONNECT, AND 672 HOUR SALT SPRAY.

7. PROVIDE WITH TWO SPEED SUPPLY FAN. MINIMUM SPEED SHALL NOT BE GREATER THAN 66 PERCENT OF FULL SPEED.

NO SCALE

TURNING VANES,

DOUBLE THICKNESS

ELBOW

TEE

DUCTWORK FITTING DETAILS

NO SCALE

SUPPORT FROM

STRUCTURE ABOVE

THREADED

ROD

CLEVIS HANGER (SIZE

AS REQUIRED)

SUPPORT FROM

STRUCTURE ABOVE

BOLT AND CLAMPING

NUT (TYP.)

STEEL PIPE

STRAP

1-5/8" x 1-5/8" x 12 GAUGE

STEEL CHANNEL

INSULATION SADDLE

THREADED ROD

LENGTH AS REQUIRED

INSULATION SADDLE (TYP)MULTIPLE PIPE RUNS

PIPE SUPPORT DETAILS

NO SCALE

SINGLE PIPE RUN

1.0 GENERAL:

THE UNIT SHALL BE PROVIDED WITH A 7-DAY PROGRAMMABLE THERMOSTAT (BASIS OF

DESIGN: HONEYWELL VISION PRO 8000 TH321WF1001) THAT SHALL OPERATE WITHOUT BAS

INTEGRATION AND IS EQUIPPED WITH THE FOLLOWING FEATURES:

FAN SPEED CONTROL: TWO-SPEED

CONDENSER TYPE: AIR-COOLED

DX COIL TYPE: DX HEAT PUMP

HEATING COIL TYPE: ELECTRIC

OUTDOOR AIR CONTROL: MOTORIZED DAMPER

EXHAUST AIR CONTROL: NONE

DEHUMIDIFICATION CONTROL: NONE

1.1 TWO-SPEED SUPPLY FAN SPEED CONTROL:

THE SUPPLY FAN SHALL STAGE BETWEEN MINIMUM AND MAXIMUM FAN SPEED BASED ON

THE FOLLOWING MODES:

FAN SPEED MODES:

MINIMUM FAN SPEED:

DEADBAND (NO HEATING OR COOLING CALL)

STAGE 1 COOLING

MAXIMUM FAN SPEED

STAGE 2 COOLING

HEAT PUMP HEATING

AUXILIARY HEATING

2.0 UNOCCUPIED MODE:

WHENEVER THE BUILDING ENTERS THE UNOCCUPIED MODE, THE SUPPLY FAN SHALL BE

DISABLED, AND THE MIXED AIR DAMPER ASSEMBLY SHALL BE FULLY OPEN TO THE RETURN

AND FULLY CLOSED TO THE OUTDOOR AIR.

ON A RISE IN SPACE TEMPERATURE ABOVE THE UNOCCUPIED COOLING SETPOINT (85°F,

ADJ.), THE SUPPLY FAN SHALL BE ENABLED, THE MIXED AIR DAMPER ASSEMBLY SHALL BE

FULLY OPEN TO THE RETURN AND FULLY CLOSED TO THE OUTDOOR AIR, ENGAGE THE

REVERSING VALVE TO COOLING, AND THE COMPRESSOR(S) SHALL STAGE AS REQUIRED TO

MAINTAIN SPACE TEMPERATURE SETPOINT. UPON A FALL IN SPACE TEMPERATURE BELOW

THE UNOCCUPIED COOLING SETPOINT, THE SUPPLY FAN SHALL BE DISABLED, THE MIXED AIR

DAMPER ASSEMBLY SHALL BE FULLY OPEN TO THE RETURN AND FULLY CLOSED TO THE

OUTDOOR AIR, AND COOLING SHALL BE DISABLED.

ON A FALL IN SPACE TEMPERATURE BELOW ITS UNOCCUPIED HEATING SETPOINT (55°F,

ADJ.), THE SUPPLY FAN SHALL BE ENABLED, THE MIXED AIR DAMPER ASSEMBLY SHALL BE

FULLY OPEN TO THE RETURN AND FULLY CLOSED TO THE OUTDOOR AIR, ENGAGE THE

REVERSING VALVE TO HEATING, AND THE COMPRESSOR(S)/ELECTRIC HEATING COIL SHALL

STAGE AS REQUIRED TO MAINTAIN SPACE TEMPERATURE SETPOINT. UPON A RISE IN SPACE

TEMPERATURE ABOVE THE UNOCCUPIED HEATING SETPOINT, THE SUPPLY FAN SHALL BE

DISABLED, THE MIXED AIR DAMPER ASSEMBLY SHALL BE FULLY OPEN TO THE RETURN AND

FULLY CLOSED TO THE OUTDOOR AIR, AND HEATING SHALL BE DISABLED.

2.1 OCCUPIED OVERRIDE:

THE UNIT IS EQUIPPED WITH AN OCCUPANCY OVERRIDE SWITCH THAT IS LOCATED ON THE

THERMOSTAT. DURING THE UNOCCUPIED MODE, IF THE OCCUPANCY OVERRIDE SWITCH IS

ACTIVATED, THE UNIT SHALL BE INDEXED TO THE OCCUPIED MODE FOR A DETERMINED

AMOUNT OF TIME (INITIALLY SET AT 2 HOURS (ADJ.). AFTER THE OCCUPANCY OVERRIDE TIME

EXPIRES, THE SYSTEM SHALL RETURN TO THE UNOCCUPIED MODE.

TRANSITION FROM UNOCCUPIED TO OCCUPIED SHALL BE AUTOMATIC THROUGH THE

THERMOSTAT UTILIZING PRESET TIME SCHEDULE.

3.0 ADAPTIVE START:

THE THERMOSTAT SHALL EMPLOY AN ADAPTIVE START PROGRAM TO AUTOMATICALLY

ADJUST THE DAILY START TIME SO THAT SPACE CONDITIONS REACH THE OCCUPIED

SETPOINTS PRIOR TO SCHEDULED OCCUPANCY. DURING THIS MODE OF OPERATION, THE

SUPPLY FAN SHALL BE ENABLED, THE MIXED AIR DAMPER ASSEMBLY SHALL BE FULLY OPEN

TO THE RETURN AND FULLY CLOSED TO THE OUTDOOR AIR, AND STAGE HEATING OR

COOLING WITHOUT OVERLAP TO ACHIEVE THE ACTIVE OCCUPIED SPACE TEMPERATURE

SETPOINTS.

ONCE THE BUILDING REACHES OCCUPIED SETPOINTS -OR- IF THE OCCUPANCY OVERRIDE

SWITCH IS ENABLED, THE UNIT SHALL BE INDEXED TO THE OCCUPIED MODE.

4.0 OCCUPIED MODE:

WHENEVER THE BUILDING ENTERS THE OCCUPIED MODE, THE SUPPLY FAN SHALL BE

ENABLED, AND THE MIXED AIR DAMPER ASSEMBLY SHALL MODULATE TO MAINTAIN THE

HIGHEST OF THE FOLLOWING:

- BASE MINIMUM OUTDOOR AIR VOLUME

ON A RISE IN SPACE TEMPERATURE ABOVE THE OCCUPIED COOLING SETPOINT (74°F, ADJ.),

THE UNIT SHALL ENGAGE THE REVERSING VALVE TO COOLING, AND STAGE THE

COMPRESSOR(S) AS REQUIRED TO MAINTAIN SPACE TEMPERATURE SETPOINT. UPON A FALL

IN SPACE TEMPERATURE BELOW THE OCCUPIED COOLING SETPOINT, COOLING SHALL BE

DISABLED.

ON A FALL IN SPACE TEMPERATURE BELOW ITS OCCUPIED HEATING SETPOINT (68°F, ADJ.),

THE UNIT SHALL ENGAGE THE REVERSING VALVE TO HEATING, AND STAGE THE

COMPRESSOR(S)/ELECTRIC HEATING COIL AS REQUIRED TO MAINTAIN SPACE TEMPERATURE

SETPOINT. UPON A RISE IN SPACE TEMPERATURE ABOVE THE OCCUPIED HEATING SETPOINT,

HEATING SHALL BE DISABLED.

5.0 SAFETIES AND ALARMS:

ALL SAFETY DEVICES IDENTIFIED WITH (SAFE) SHALL BE HARDWIRE-INTERLOCKED TO

PREVENT UNIT OPERATION DURING A SAFETY EVENT UNLESS NOTED OTHERWISE.

5.1 REFRIGERANT LEAK DETECTION SYSTEM:

FOR SYSTEMS EQUIPPED WTH A2L REFRIGERANT, THE UNIT SHALL BE PROVIDED WITH A

MANUFACTURER-INSTALLED REFRIGERANT DETECTION SYSTEM THAT IS COMPLIANT WITH UL

60335-2-40. UPON ACTIVATION OF THE REFRIGERANT DETECTION SYSTEM, THE SUPPLY FAN

SHALL BE ENABLED AND INDEXED TO MAXIMUM AIRFLOW. ALL ELECTRIC RESISTANCE

HEATERS OR ANY OTHER POTENTIAL IGNITION SOURCES THAT ARE INSTALLED WITHIN THE

UNIT OR CONNECTED DUCTWORK SHALL BE DISABLED. MITIGATION ACTIONS SHALL BE

INITIATED WITHIN 15 SECONDS OR LESS OF DETECTION AND MUST CONTINUE FOR AT LEAST

5 MINUTES AFTER THE DETECTOR HAS SENSED A DROP IN REFRIGERANT CONCENTRATION

BELOW THE SETPOINT VALUE.

5.2 CONDENSATE OVERFLOW SWITCH:

UPON ACTIVATION OF THE CONDENSATE OVERFLOW SWITCH, THE DX COOLING SHALL BE

DISABLED. UPON DE-ACTIVATION OF THE CONDENSATE OVERFLOW SWITCH, THE DX

COOLING SHALL RETURN TO NORMAL OPERATION.

5.3 SMOKE DETECTOR ACTIVATION:

FOR SYSTEMS REQUIRED TO HAVE DUCT-MOUNTED SMOKE DETECTORS, UPON ACTIVATION

OF THE SMOKE DETECTOR, THE SUPPLY FAN SHALL STOP, AND THE MIXED AIR DAMPER

ASSEMBLY SHALL BE FULLY OPEN TO THE RETURN AND FULLY CLOSED TO THE OUTDOOR

AIR.

SEQUENCE OF OPERATION

OF

DATE

D E S C

R

IP

T

IO

N

R E V

IS

IO

N S

D A

T E

D M

V W

ID

G

E O

N C

S C

H

V A

C R

E P L A

C E M

E N

T

W

ID

G E O

N R

O A

D N

O R

F O

L K

2026-039

E001

GE

NE

RA

L N

OT

ES

A

ND

LE

GE

ND

GENERAL ELECTRICAL NOTES

GENERAL: UNLESS SPECIFICALLY INDICATED OTHERWISE, ALL WORK

SHOWN ON ELECTRICAL DRAWINGS IS NEW WORK TO BE PROVIDED

UNDER THIS CONTRACT.

COORDINATION: COORDINATE AND COOPERATE WITH ALL TRADES ON

THE PROJECT. THE CONTRACTOR SHALL REVIEW ALL CONTRACT

DOCUMENTS INCLUDING ARCHITECTURAL DRAWINGS AND

SPECIFICATIONS. CONTRACTOR SHALL COORDINATE AND ADJUST

ACCORDINGLY AS DIRECTED BY THE ENGINEER.

AS-BUILT DRAWINGS: SECURE AN EXTRA SET OF ELECTRICAL DRAWINGS

TO BE KEPT ON SITE AND MARK, DAILY, THE DRAWINGS IN RED AS THE

PROJECT PROGRESSES IN ORDER TO KEEP AN ACCURATE RECORD OF

ALL DEVIATIONS BETWEEN THE WORK SHOWN ON THE DRAWINGS AND

THE WORK WHICH IS ACTUALLY INSTALLED. THESE MARKED DRAWINGS

SHALL REFLECT ANY AND ALL CHANGES AND REVISIONS TO THE ORIGINAL

DESIGN WHICH EXISTS IN THE COMPLETED WORK. DELIVER THE MARKED

DRAWINGS TO THE OWNER AT PROJECT CLOSE-OUT.

TESTS: TEST ALL WIRING FOR CONTINUITY AND GROUNDS BEFORE

CONNECTING ANY FIXTURES OR DEVICES. PERFORM INSULATION

RESISTANCE TESTS ON ALL WIRING #6 OR LARGER TO ENSURE THAT ALL

PORTIONS ARE FREE FROM SHORT-CIRCUITS AND GROUNDS.

INSPECTIONS: ARRANGE ALL NECESSARY INSPECTIONS. DELIVER ALL

REQUIRED INSPECTION CERTIFICATES TO THE OWNER.

GROUNDING: PROVIDE GROUNDING IN ACCORDANCE WITH THE NEC FOR

THE ELECTRICAL SYSTEM INCLUDING EQUIPMENT FRAMES, CONDUITS,

SWITCHES, CONTROLLERS, WIRE-WAYS, NEUTRAL CONDUCTORS, AND

OTHER EQUIPMENT. PROVIDE A GROUNDING CONDUCTOR IN ALL POWER

CONDUITS.

LABELS: PROVIDE LABELS FOR ALL PANELBOARDS, CABINETS, SAFETY

SWITCHES, MOTOR-DISCONNECT SWITCHES, AND MOTOR CONTROLLERS.

LABELS SHALL BE MACHINE ENGRAVED, LAMINATED PLASTIC,

PERMANENTLY ATTACHED WITH SELF-TAPPING SCREWS OR RIVETS. DO

NOT USE SELF-ADHESIVE LABELS. LABEL SHALL INDICATE EQUIPMENT

DESIGNATION AND ASSOCIATED PANEL AND CIRCUIT THAT SERVES IT.

J-BOX LABELING: LABEL ALL JUNCTION BOXES WITH PERMANENT

MARKER IDENTIFYING CIRCUIT NUMBER AND PANELBOARD OF CIRCUITS

WITHIN.

WIRING DEVICES: LABEL ALL WIRING DEVICES WITH PANELBOARD AND

CIRCUIT DESIGNATION PERMANENTLY ATTACHED WITH BLACK TYPED

DESIGNATION ON CLEAR TAPE.

PANEL DIRECTORY: PROVIDE UPDATED TYPEWRITTEN PANELBOARD

DIRECTORY CARD IN EACH PANELBOARD WITH CIRCUIT LOAD

INFORMATION AND ROOM NUMBER CLEARLY IDENTIFIED. USE ACTUAL

ROOM NUMBERS IN THE BUILDING, NOT THE ROOM NUMBERS SHOWN ON

THE CONTRACT DRAWINGS, AS THEY ARE OFTEN DIFFERENT.

MOTOR COORDINATION: MOTORS, MOTOR STARTERS, CONTROLLERS,

INTEGRAL DISCONNECT SWITCHES, AND CONTACTORS SHALL BE

PROVIDED WITH THEIR RESPECTIVE PIECES OF EQUIPMENT BY THE

EQUIPMENT SUPPLIER. COMMUNICATE WITH THE TRADES PROVIDING THE

EQUIPMENT, VERIFYING ALL REQUIREMENTS, PROVIDE ALL ELECTRICAL

CONNECTIONS REQUIRED THEREIN, AND INSTALL MOTOR STARTERS.

MOTOR DISCONNECTS: ALL MOTORS SHALL HAVE DISCONNECTING

MEANS.

MOTOR CONTROLLERS: ALL 3-PHASE MOTORS SHALL HAVE MAGNETIC

MOTOR CONTROLLERS WITH SOLID STATE OVERLOAD RELAY

PROTECTION. THE SOLID STATE OVERLOAD RELAY SHALL HAVE PHASE

LOSS AND PHASE OVERCURRENT PROTECTION WITH AUTOMATIC RESET

UPON RETURN OF NORMAL POWER.

MOTOR FUSE PROTECTION: WHERE FUSE PROTECTION IS SPECIFICALLY

REQUIRED BY THE EQUIPMENT MANUFACTURER, PROVIDE FUSED

SWITCHES IN LIEU OF NON-FUSED SWITCHES OR IN LIEU OF ENCLOSED

CIRCUIT BREAKERS, OR OTHER DEVICES INDICATED.

CONNECTION DETAILS: SECURE APPROVED SHOP DRAWINGS SHOWING

WIRING DIAGRAMS, ROUGH-IN AND HOOK UP DETAILS FROM OTHER

INVOLVED CONTRACTORS FOR EQUIPMENT WHICH MUST BE CONNECTED

ELECTRICALLY.

COORDINATION DETAILS: MECHANICAL EQUIPMENT WILL BE FURNISHED

AND INSTALLED BY THE MECHANICAL CONTRACTOR. THE LOCATIONS

SHOWN ON THE ELECTRICAL DRAWINGS ARE APPROXIMATE. COORDINATE

WITH THE MECHANICAL CONTRACTOR TO DETERMINE THE EXACT

LOCATION OF EACH PIECE OF EQUIPMENT AND DETERMINE THE EXACT

ROUGH-IN AND CONNECTION REQUIREMENTS.

WORKING CLEARANCE: COORDINATE FINAL LOCATIONS OF ELECTRICAL

EQUIPMENT WITH MECHANICAL DUCTWORK, PIPING ETC. AND ENSURE

WORKING CLEARANCE REQUIRED BY NEC WILL BE MET. SUFFICIENT

ACCESS AND WORKING SPACE SHALL BE PROVIDED AND MAINTAINED

AROUND ELECTRICAL EQUIPMENT AS REQUIRED BY THE NATIONAL

ELECTRICAL CODE. CONTRACTOR SHALL COORDINATE FINAL LOCATION

OF EQUIPMENT PROVIDED AND INSTALLED BY OTHER TRADES.

STARTER MOUNTING: WHERE AN INDIVIDUALLY MOUNTED SAFETY

SWITCH, STARTER OR CIRCUIT BREAKER IS SHOWN ADJACENT TO ITS

RESPECTIVE LOAD OR LISTED IN A SCHEDULE, PROVIDE ALL SUPPORTS,

BRACKETS, ANCHORING, ETC. NECESSARY TO PROPERLY SUPPORT THE

DEVICE.

MATERIAL COORDINATION: VERIFY CEILING AND WALL CONSTRUCTION

AND MATERIAL PRIOR TO ORDERING DEVICES TO ENSURE PROPER

DEVICE IS FURNISHED TO MATCH CONSTRUCTION.

MOUNTING HEIGHTS: MOUNTING HEIGHTS INDICATED ARE FROM THE

FINISHED FLOOR TO THE CENTERLINE OF THE WIRING DEVICE UNLESS

OTHERWISE NOTED. MOUNTING HEIGHTS OF LIGHTING FIXTURES ARE TO

THE BOTTOM OF THE FIXTURE UNLESS OTHERWISE NOTED.

DEVICE LOCATIONS: COORDINATE LOCATIONS OF SWITCHES,

RECEPTACLES, AND TELE/DATA OUTLETS WITH OTHER WALL MOUNTED

DEVICES SUCH AS THERMOSTATS AND CONTROL STATIONS.

DEVICE COORDINATION: THOROUGHLY REVIEW AND COORDINATE ALL

CASEWORK AND CABINET DRAWINGS AND ARCHITECTURAL ELEVATIONS

WITH DEVICE LOCATIONS PRIOR TO ROUGH-IN OF OUTLET BOXES.

MULTI-GANG JUNCTION BOXES: WHERE OUTLETS AND SWITCHES ARE

SHOWN ON PLAN TO BE INSTALLED ADJACENT TO EACH OTHER AND AT

THE SAME MOUNTING HEIGHT, THE DEVICES SHALL BE INSTALLED IN A

MULTI-GANG OUTLET BOX, UON. THE SIZE OF THE OUTLET BOX SHALL BE

DETERMINED BY THE NUMBER OF DEVICES AND CONDUCTORS THAT

SHALL BE INSTALLED IN THE MULTI-GANG OUTLET BOX.

BARRIERS: WHERE A MULTIPLE-GANG BOX HAS CIRCUITS OF DIFFERENT

VOLTAGES OR SYSTEMS WHICH ARE REQUIRED TO BE SEPARATED,

PROVIDE THE CODE-REQUIRED SEPARATION USING A FULL HEIGHT AND

DEPTH BARRIER PLATE.

CLEAN UP: ON PROJECT CLOSE-OUT CLEAN ALL ELECTRICAL DEVICES,

LIGHTING FIXTURES, LENSES, AND REMOVE ALL PAINT SPATTERS FROM

DEVICES, FIXTURES AND PLATES. REPAIR ALL INOPERATIVE LIGHTING

FIXTURES.

GROUND FAULT PROTECTION: RECEPTACLES LOCATED WITHIN 6'-0" OF

THE EDGE OF SINKS SHALL BE PROVIDED WITH GROUND FAULT

PROTECTION WHETHER SHOWN OR NOT.

HVAC DAMPERS, ETC: CONTRACTORS SHALL COORDINATE WITH THE

EQUIPMENT AND SYSTEM BEING PROVIDED AND PROVIDE POWER

CONNECTIONS ACCORDINGLY. THESE CONNECTIONS SHALL BE FOR

FIRE/SMOKE DAMPERS, DDC CONTROL DEVICES, ETC. CONTRACTOR

SHALL COORDINATE THE VOLTAGE REQUIREMENTS AND PROVIDE ALL

NECESSARY CONNECTIONS, COMPONENTS, ETC. THIS INCLUDES

TRANSFORMERS, BOXES, ETC.

CEILING PLENUM: THE CEILING SPACE IS A RETURN AIR PLENUM. ALL LOW

VOLTAGE CABLE SHALL BE PLENUM RATED. REFER TO NEC ART. 300.22

FOR PROVISIONS APPLICABLE TO PLENUMS.

OWNER STANDARDS: ALL WORK SHALL COMPLY WITH THE OWNER'S

PUBLISHED STANDARDS WHICH ARE AVAILABLE DIRECTLY FROM THE

OWNER.

EXISTING TO REMAIN DEVICES: CONTRACTOR SHALL REINSTALL DEVICES

THAT WERE TEMPORARILY SUPPORTED OR STORED FOR REINSTALLATION

IN EXISTING LOCATIONS ONCE CEILING WORK IS COMPLETE. PROVIDE

ADDITIONAL MOUNTING HARDWARE AND EXTEND EXISTING

CONDUIT/WIRING AS REQUIRED.

ELECTRICAL DEMOLITION NOTES

GENERAL: DEMOLITION DRAWINGS ARE BASED ON EXISTING PLANS AND FIELD

INVESTIGATION PRIOR TO DEMOLITION. VISIT THE EXISTING BUILDING PRIOR

TO BID IN ORDER TO BECOME FAMILIAR WITH THE EXISTING CONDITIONS AND

IN ORDER TO AVOID CONFLICTS.

DASHED ITEMS: ALL ITEMS SHOWN DASHED ON DEMOLITION PLANS ARE

EXISTING AND SHALL BE REMOVED.

SOLID ITEMS: ALL ITEMS SHOWN SOLID ON DEMOLITION PLANS ARE EXISTING

TO REMAIN.

CIRCUITING TO REMAIN: EXISTING CIRCUITING TO REMAIN SHALL BE

REROUTED OR RECONNECTED, AS REQUIRED, WHERE AFFECTED BY NEW

WORK IN ORDER TO MAINTAIN CONTINUITY OF THE CIRCUIT.

REUSE OF EXISTING CIRCUITRY: EXISTING CIRCUITRY SERVING LIGHTING

FIXTURES AND/OR RECEPTACLES FOR A GIVEN AREA SHALL BE REUSED

WHERE INDICATED TO SERVE THE NEW LAYOUT. PROVIDE CIRCUIT

MODIFICATIONS INDICATED OR AS OTHERWISE REQUIRED TO MAINTAIN THE

CONTINUITY OF EXISTING CIRCUITS THAT REMAIN.

EXISTING CONDUIT: ALL EXISTING CONDUITS AND WIRING THAT WILL NOT BE

REUSED SHALL BE REMOVED WHERE THEY WILL BE EXPOSED UPON

COMPLETION OF NEW WORK. EXISTING CONDUIT TO REMAIN CONCEALED IN

WALLS SHALL BE ABANDONED. EXISTING CONDUIT TO REMAIN BELOW FLOOR

SLAB SHALL BE CUT OFF ONE INCH BELOW ROUGH FLOOR AND GROUTED

FLUSH. ALL EXISTING WIRING IN CONDUITS TO BE ABANDONED SHALL BE

DISCONNECTED FROM POWER SOURCE AND REMOVED.

REPAIR DAMAGE: EXERCISE CARE IN REMOVAL OF DEMOLITION ITEMS.

REPAIR, AT NO ADDITIONAL COST TO THE OWNER, ANY DAMAGE CAUSED TO

EXISTING CONSTRUCTION AND/OR EQUIPMENT TO REMAIN.

ASSOCIATED APPURTENANCES: REMOVE ALL ELECTRICAL APPURTENANCES

(DISCONNECTS, STARTERS, WIRING, CONDUIT, ETC.) ASSOCIATED WITH ITEMS

TO BE REMOVED INCLUDING EQUIPMENT TO BE REMOVED BY OTHERS.

KNOCKOUT PLUGS AND COVERS: ALL CONDUIT REMOVED SHALL BE REMOVED

IN ITS ENTIRETY, INCLUDING FITTINGS, MOUNTING DEVICES, MOUNTING

HARDWARE, ETC. PROVIDE CONDUIT PLUGS AND BLANKS FOR ALL OPENINGS

CREATED BY THE REMOVAL OF CONDUIT. PROVIDE BLANK COVER PLATES FOR

ALL OPENED OUTLET BOXES CREATED BY THE REMOVAL OF EQUIPMENT

AND/OR DEVICES

DEMOLISHED MATERIALS: ALL MATERIALS REMOVED UNDER DEMOLITION,

NOT TO BE RELOCATED OR DESIGNATED TO BE TURNED OVER TO THE

OWNER, SHALL BECOME THE PROPERTY OF THE CONTRACTOR AND SHALL BE

REMOVED COMPLETELY FROM THE SITE.

SCHEDULE OUTAGES: ALL WORK AND ALL POWER OUTAGES IN THE EXISTING

BUILDING SHALL BE SCHEDULED AT TIMES CONVENIENT TO THE OWNER.

NOTIFICATION: NOTIFY THE OWNER PRIOR TO TURNING OFF ANY CIRCUITS.

ABANDONED COMMUNICATIONS CABLING: ABANDONED COMMUNICATIONS

CABLING (TELEPHONE OR DATA) ABOVE THE CEILING SHALL BE REMOVED PER

NEC ARTICLE 645.

EXISTING TO REMAIN DEVICES: ALL EXISTING TO REMAIN DEVICES LOCATED IN

CEILINGS TO BE REMOVED/REPLACED, WHETHER SHOWN OR NOT, SHALL BE

TEMPORARILY SUPPORTED, OR REMOVED AND STORED FOR REINSTALLATION.

RIGHT OF REFUSAL: THE OWNER SHALL HAVE THE FIRST RIGHT OF REFUSAL

FOR ALL SALVAGED EQUIPMENT.

SAFETY SWITCH, 60A-3P, FU @ 30A, 3R

ELECTRICAL PANELBOARD

ELECTRICAL CIRCUIT RUN IN CONDUIT AND CIRCUIT HOMERUN TO

PANELBOARD (PANEL AND CIRCUIT DESIGNATION AS INDICATED). AS A

MINIMUM CONDITION, EACH SINGLE PHASE CIRCUIT SHALL HAVE 1 #12 PHASE

CONDUCTOR, 1 #12 NEUTRAL CONDUCTOR AND 1 #12 GROUNDING CONDUCTOR

IN 1/2" CONDUIT. PROVIDE ADDITIONAL PHASE CONDUCTORS AS REQUIRED

FOR "MULTIPLE PHASED" ELECTRICAL LOADS. PROVIDE NEUTRAL CONDUCTOR

TO ALL WALL SWITCH OUTLET BOXES WHETHER REQUIRED OR NOT. PROVIDE

ADDITIONAL "SWITCH LEG" CONDUCTORS TO PROVIDE THE LIGHT FIXTURE

CONTROL INDICATED. MULTIPLE SINGLE PHASE CONDUCTORS MAY BE

GROUPED TOGETHER IN A COMMON CONDUIT IN ACCORDANCE WITH THE NEC

AND AT THE CONTRACTOR'S DISCRETION. GROUNDING CONDUCTORS MAY BE

SHARED AS ALLOWED BY THE NEC. NEUTRAL CONDUCTORS SHALL NOT BE

SHARED. MULTI-POLE BREAKERS SHALL BE PROVIDED IN ACCORDANCE WITH

THE NEC WHERE MULTI-WIRE BRANCH CIRCUITS ARE REQUIRED. CONDUIT

LARGER THAN 1/2" AND CONDUCTORS LARGER THAN #12 SHALL BE AS

INDICATED.

POWER

GENERAL

NEW WORK NOTE SYMBOL

DEMOLITION NOTE SYMBOL

THE FOLLOWING SUBSCRIPTS SHALL APPLY TO RECEPTACLES WHERE USED:

ELECTRICAL LEGEND

AND

SWITCH RATING

NUMBER OF POLES

FUSE RATING (NF INDICATES NON-FUSED)

NEMA ENCLOSURE IF OTHER THAN NEMA 1

DUPLEX CONVENIENCE RECEPTACLE 20A, 120V, 18" AFF, UON

GFI: GROUND FAULT INTERRUPTING TYPE RECEPTACLE.

ABBREVIATIONS

A AMPERE

AFF ABOVE FINISHED FLOOR

AIC AMPERE INTERRUPTING CAPACITY

C CONDUIT

CFCI CONTRACTOR FURNISHED,

CONTRACTOR INSTALLED

CKT CIRCUIT

CB CIRCUIT BREAKER

EBU EMERGENCY BATTERY UNIT

EC EMPTY CONDUIT

EF EXHAUST FAN

EQUIP EQUIPMENT

ETR EXISTING TO REMAIN

EWC ELECTRIC WATER COOLER

EXIST EXISTING

FHP FRACTIONAL AC HORSEPOWER

FLA FULL LOAD AMPS

GFI GROUND FAULT INTERRUPTER

GND GROUND

KAIC THOUSAND AMPERE

INTERRUPTING CAPACITY

KVA KILO-VOLT-AMPERES

KW KILO-WATTS

LPW LUMENS PER WATT

LTG LIGHTING

MCA MINIMUM CIRCUIT AMPS

MCB MAIN CIRCUIT BREAKER

MFR MANUFACTURER

MLO MAIN LUGS ONLY

MTD MOUNTED

NEC NATIONAL ELECTRICAL CODE

NF NON-FUSED

NIC NOT IN CONTRACT

NTS NOT TO SCALE

OC ON CENTER

OFCI OWNER FURNISHED,

CONTRACTOR INSTALLED

OFOI OWNER FURNISHED,

OWNER INSTALLED

P POLE

PNL PANEL

PNLBD PANELBOARD

Ø PHASE

PRI PRIMARY

RECEPT RECEPTACLE

REQ'D REQUIRED

SEC SECONDARY

TBB TELEPHONE BACKBOARD

TYP TYPICAL

UON UNLESS OTHERWISE NOTED

V VOLT

W WATTS/WIRE

TFTI TENANT FURNISED, TENANT

INSTALLED

DUCT SMOKE DETECTION

D

RT

PHOTOELECTRIC DUCT SMOKE DETECTOR

REMOTE TEST/RESET/ANNUNCIATOR. CONTRACTOR TO PROVIDE KEY-

OPERATED REMOTE TEST AND RESET FUNCTIONS WITH INTEGRAL AUDIBLE

AND VISIBLE ANNUNCIATION OF THE ASSOCIATED DUCT SMOKE DETECTOR.

ALL LIFE SAFETY SYSTEMS (FIRE ALARM AND FIRE SPRINKLER) SHALL REMAIN OPERATIONAL DURING ALL PHASES OF

DEMOLITION AND NEW WORK.

LIFE SAFETY SYSTEMS NOTE:

PORTIONS OF THE BUILDING OUTSIDE OF THE AREA OF WORK SHALL REMAIN OCCUPIED THROUGHOUT THE DURATION OF CONSTRUCTION. CONTRACTOR SHALL TAKE CARE TO NOT INTERRUPT POWER, WATER, HVAC, ETC SERVING THE OCCUPIED AREAS OF THE BUILDING. IF SHUT DOWNS OR SHUT OFFS ARE REQUIRED, THE CONTRACTOR SHALL NOTIFY FACILITIES IN WRITING WITH THE PROPOSED SCHEDULE AND ANTICIPATED DURATION OF ANY REQUIRED UTILITY INTERRUPTIONS. SCHEDULE A MINIMUM OF 5 DAYS PRIOR TO COMMENCING WORK. CONTRACTOR SHALL NOT COMMENCE

WITH ANY INTERRUPTIONS WITHOUT WRITTEN AUTHORIZATION FROM THE OWNER.

OCCUPANCY NOTE: VIRGINIA UNIFORM STATEWIDE BUILDING CODE: VUSBC, 2021

CONSTRUCTION AND PROFESSIONAL SERVICES MANUAL: CPSM, 2025, REV 0

NATIONAL ELECTRICAL CODE: NFPA 70, 2020

AMERICANS WITH DISABILITIES ACT: ASAD, SEPTEMBER 15, 2010 - CH 2 SCOPING

NATIONAL FIRE ALARM AND SIGNALING CODE: NFPA 72, 2019

VIRGINIA ENERGY CONSERVATION CODE (VECC): 2021

CODE INFORMATION:

LIMITS OF DEMOLITION SYMBOL

LIMITS OF NEW WORK SYMBOL

F DUCT SMOKE DETECTION SYSTEM VISUAL ANNUNCIATION DEVICE

AHU-1AHU-2

HP-1

HP-2

DS

S

CURRENT

TRANSFORMER CABINET

METER

PANEL "A" - ETR

WP

ETR

100A-3P, FU@100A, 3R

100A-3P, FU@70A, 3R - ETR

30A-2P, NF, 3R - ETR

PANEL "A-1"

AHU-2; 100A-3P, NF

ETR

STACK ROOM

EQUIPMENT YARD

MECHANICAL ROOM

E B-13 1

D

ETR

D

FF

J JUNCTION BOX - ETR

PANEL "B" - ETR

AHU-1AHU-2

HP-1

HP-2

DS

S

PANEL "B" - ETR

CURRENT

TRANSFORMER CABINET

METER

PANEL "A" - ETR

WP

ETR

200A-3P, FU@125A, 3R

100A-3P, FU@70A, 3R - ETR

30A-2P, NF, 3R - ETR

3 #1, 1 #6 GND - 1 1/4"C

E

B-13; 3 #2, 1 #8 GND- 1 1/4"C

B-2; 3 #1/0, 1 #6 GND- 2"C

DD

NEW ACCESS PANEL

J

JUNCTION BOX - ETR

B-30; 3 #1, 1 #6 GND - EXISTING CONDUIT

F

PANEL "A-1"

PROJECT CODE

RFS JOB #

OF

DATE

D E S C

R

IP

T

IO

N

R E V

IS

IO

N S

D A

T E

1/4" = 1'-0" 5' 10'0' 5'

D M

V W

ID

G

E O

N C

S C

H

V A

C R

E P L A

C E M

E N

T

W

ID

G E O

N R

O A

D N

O R

F O

L K

2026-039

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

E101

AHU-2 ELECTRICAL CONNECTION. DISCONNECT AND REMOVE

CIRCUIT AND ASSOCIATED DISCONNECT BACK TO SOURCE.

AHU-1 ELECTRICAL CONNECTION. DISCONNECT AND REMOVE

CIRCUIT BACK TO PANEL "B".

HP-1 ELECTRICAL CONNECTION. DISCONNECT AND REMOVE CIRCUIT

AND ASSOCIATED DISCONNECT BACK TO SOURCE. RETAIN CONDUIT

AND JUNCTION BOX FOR REUSE IN NEW WORK AS INDICATED ON

PLAN.

PANEL "A-1" SEE POWER RISER FOR ADDITIONAL WORK.

DEMOLISH DUCT SMOKE DETECTOR AND ALL ASSOCIATED

CIRCUITRY.

DEMOLISH REMOTE STROBE SERVING AHU-1 DUCT SMOKE

DETECTOR.

DEMOLITION NOTES THIS SHEET

NEW WORK

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

NE

W

W

OR

K

AN

D

DE

MO

E

LE

CT

RI

CA

L P

LA

NS

PANEL "A-1", SEE POWER RISER FOR ADDITIONAL WORK.

AHU-1; 149 MCA, 150A MOCP, 208V, 3Ø.

PROVIDE KEY-OPERATED TEST RESET STATION WITH INTEGRAL

AUDIBLE SOUNDER AND VISIBLE INDICATOR. PROVIDE UNIT

LISTED AND COMPATIBLE WITH ASSOCIATED DUCT SMOKE

DETECTOR. LABEL WITH ASSOCIATED HVAC UNIT. UTILIZE

EXISTING PATHWAY FROM REMOTE STROBE TO AHU LOCATION

FOR CONNECTIVITY. EXTEND AND REWORK WIRING IN KIND AS

REQUIRED IN 1 1/4 C.

SURFACE MOUNT CONDUIT ALONG EXTERIOR WALL AND FLOOR

TO UNIT.

NOTES THIS SHEET

CONTRACTOR NOTE

CONTRACTOR SHALL PROVIDE (2) ADDITIONAL

SETS OF FUSES TO OWNER FOR SPARES.

DEMOLITION WORK

OF

DATE

D E S C

R

IP

T

IO

N

R E V

IS

IO

N S

D A

T E

D M

V W

ID

G

E O

N C

S C

H

V A

C R

E P L A

C E M

E N

T

W

ID

G E O

N R

O A

D N

O R

F O

L K

2026-039

E401

EL

EC

TR

IC

AL

P

AN

EL

S

CH

ED

UL

ES

A

ND

D

ET

AI

LS

EXISTING PANELBOARD A-1 SCHEDULE

100A MLO, 240/120 VOLT, 1 PHASE, 3 WIRE, 10 KAIC MINIMUM, SURFACE MOUNT, GROUND BUS

LOAD (AMPS) BKR CKT PHASE CKT BKR LOAD (AMPS)

LOAD SERVED A B TRIP NO. A B NO. TRIP A B LOAD SERVED

WATER COOLER 20/1P 1 2 20/1P SPARE

WTR COOLR, CAMERAS 20/1P 3 4 20/1P SPARE

O-MATIC MONITOR 20/1P 5 6 20/1P SPARE

VEND MACHINE 20/1P 7 8 20/1P SPARE

SPARE 20/1P 9 10 20/1P SPARE

SPACE ONLY 20/1P 11 12 30/2P SERVER ROOM A/C

SPACE ONLY 20/1P 13

SPACE ONLY 20/1P 15 16 60/2P WEST EXIT TRMP REC

SPACE ONLY 20/1P 17

SPACE ONLY 20/1P 19 20 50/2P EAST CORNER OPP

SPACE ONLY 20/1P 21

SPACE ONLY 20/1P 23 24 20/1P SPARE

FED BY PANEL "A" CIRCUIT A-14.

EXISTING SQUARE-D, QO LOAD CENTER, QOC24UF

MECHANICAL ROOM

EXISTING CURRENT TRANSFORMER

CABINET WITH 400:5A CURRENT

TRANSFORMERS

EXISTING DVP METER

#117950546

EXISTING 18" SQUARE WIREWAY

EXISTING 400A, 3P DISCONNECT SWITCH WITH

CURRENT LIMITING FUSES

CONDUCTORS, AND # 4/0 NEUTRAL, 4"C, ONE SPARE 4"C.

EXISTING DVP 150KVA PAD

MOUNTED TRANSFORMER 2

DISCONNECT AND RELOCATE PANEL "A-1". SEE FLOOR PLAN ON

SHEET E101 FOR LOCATION.

DISCONNECT AND REMOVE FEEDER.

DISCONNECT AND RETAIN TEMPORARY BRANCH CIRCUITS FOR

TEMPORARY A/C UNITS. RE-WORK CONDUIT AND WIRE AS

REQUIRED TO ACCOMMODATE DEMOLITION OF EXISTING WALL.

SEE NEW WORK NOTES THIS SHEET.

DISCONNECT AND RETAIN SERVER ROOM A/C BRANCH CIRCUIT.

RE-WORK CONDUIT AND WIRE AS REQUIRED TO

ACCOMMODATE DEMOLITION OF EXISTING WALL. SEE NEW

WORK NOTES THIS SHEET.

DISCONNECT AND RETAIN BRANCH CIRCUITS. RE-WORK

CONDUIT AND WIRE AS REQUIRED TO ACCOMMODATE

DEMOLITION OF EXISTING WALL. SEE NEW WORK NOTES THIS

SHEET.

3 #2, 1 #8 GND - 1 1/4"C

CONNECT SERVER ROOM A/C BRANCH CIRCUITS RETAINED DURING

DEMOLITION. EXTEND CONDUIT AND WIRE AS REQUIRED, MINIMUM OF #10

CONDUCTORS. PROVIDE CONDUIT EXTENSIONS, SPLICE BOXES, CONDUCTOR

SPLICING, AND REQUIRED SUPPORTS TO EXTEND CIRCUITS. FIELD-VERIFY

EXISTING CONDUCTOR SIZES. MAINTAIN CODE-COMPLIANT PHASE, NEUTRAL,

AND EQUIPMENT GROUNDING CONDUCTOR COLOR IDENTIFICATION PER NEC.

BRANCH CIRCUIT RETAINED DURING DEMOLITION. EXTEND CONDUIT AND WIRE

AS REQUIRED, MINIMUM OF #12 CONDUCTORS. PROVIDE CONDUIT EXTENSIONS,

SPLICE BOXES, CONDUCTOR SPLICING, AND REQUIRED SUPPORTS TO EXTEND

CIRCUITS. FIELD-VERIFY EXISTING CONDUCTOR SIZES. MAINTAIN

CODE-COMPLIANT PHASE, NEUTRAL, AND EQUIPMENT GROUNDING

CONDUCTOR COLOR IDENTIFICATION PER NEC.

CONTRACTOR SHALL CHECK AND TORQUE CONNECTIONS AND MECHANICAL

JOINTS IN SERVICE DISCONNECTS.

6 DUCT WIDTHS MINIMUM (OPTIMAL) 6 DUCT WIDTHS MINIMUM (OPTIMAL)

BEND OR OTHER

OBSTRUCTION AIR FLOW SUPPLY OR RETURN AIR FLOW

ENSURE PROPER SAMPLING TUBE SUPPORT, THAT THE SAMPLING

HOLES ARE DIRECTED FULLY INTO THE AIR PATH AND THAT THE

OTHER SIDE OF THE SAMPLING TUBE IS VISIBLE AND PLUGGED ON

THE OTHER SIDE OF THE DUCTWORK, IF REQUIRED BY THE DUCT

DETECTOR MANUFACTURER. ENSURE THE DETECTOR IS FULLY

INSTALLED IN ACCORDANCE WITH MANUFACTURER'S

RECOMMENDATIONS/INSTALLATION INSTRUCTIONS AND

PROPERLY TESTED UTILIZING A PROPERLY CALIBRATED

MANOMETER. PROVIDE READINGS AND EVIDENCE OF

CONTRACTOR PRELIMINARY TESTING BEFORE FINAL TESTS.

3 #3, 1 #8 GND - 1 1/4"C

EXISTING PANELBOARD B SCHEDULE

400A MLO, 208/120 VOLT, 3 PHASE, 4 WIRE, SURFACE MOUNT, GROUND BUS

LOAD (AMPS) BKR CKT PHASE CKT BKR LOAD (AMPS)

LOAD SERVED A B C TRIP NO. A B C NO. TRIP A B C LOAD SERVED

AHU-1 119.0 150/3P 1 2 20/1P 8.0 EXIST LIGHTS

NOTE 2 119.0 4 20/1P 7.0 EXIST EXHAUST FAN

119.0 6 20/1P 7.0 EXIST EXHAUST FAN

SPARE 20/1P 3 8 20/1P 8.0 BASEBOARD HEAT

SPARE 20/1P 5 10 20/1P 8.0 BASEBOARD HEAT

SPARE 20/1P 7 12 20/1P 8.0 BASEBOARD HEAT

SPARE 20/1P 9 14 20/1P 8.0 BASEBOARD HEAT

SPARE 20/1P 11 16 20/1P SPARE

SPARE 20/1P 13 18 20/1P SPARE

AHU-2 78.4 100/3P 13 20 20/1P SPARE

EXISTING 78.4 22 20/1P SPARE

78.4 24 30/2P 22.0 WATER HEATER

SURGE 60/3P 25 22.0

SUPPRESSOR 26 40/2P SPARE

EXISTING

BATHROOM EXH FAN 2.5 20/1P 19 28 70/3P 38.5 HP-2

EXISTING LOAD 10.0 20/1P 21 38.5

EXISTING LOAD 10.0 20/1P 23 38.5

SPACE ONLY 30 125/3P 74.4 HP-1

SPACE ONLY 74.4 NOTE 1

SPACE ONLY 74.4

TOTAL 199.9 207.4 207.4 158.9 127.9 149.9 TOTAL

TOTAL CONNECTED AMPS A: 358.8 B: 335.3 C: 357.3

EXISTING SQUARE-D, ALL LOADS INDICATED ARE EXISTING UNLESS IN BOLD.

1. REMOVE FA36100 CIRCUIT BREAKER AND REPLACE WITH 125A-3P CIRCUIT BREAKER.

2. REMOVE FA36175 CIRCUIT BREAKER AND REPLACE WITH 150A-3P CIRCUIT BREAKER.

PANEL "A-1", SEE FLOOR PLAN ON SHEET E101 FOR LOCATION.

CONNECT TEMPORARY BRANCH CIRCUITS FOR TEMPORARY A/C UNITS.

EXISTING UNDERGROUND 208Y/120V, 3Ø, 4W SERVICE ENTRANCE/LATERAL, 3-500KCMIL ALUMINUM

EXISTING SERVICE DISCONNECT SWITCH, TYPICAL