S02 - Attachment 9 - Columbia EHRM Mechanical Drawing Set 7 of 9.pdf

CONTRACTOR REQUIREMENTS FOR THE

DEMOLITION OF, OR ADDITION TO, ANY PORTION

OF AIR, PLUMBING OR HYDRONIC SYSTEMS.

COVER SHEET NOTES:

THE FOLLOWING SHALL APPLY TO ALL MECHANICAL SYSTEMS AFFECTED BY CONSTRUCTION ACTIVITIES. SYSTEMS INCLUDED BUT ARE NOT LIMITED TO HVAC, EXHAUST, EQUIPMENT, DUCTWORK, DUCTWORK ACCESSORIES, HYDRONICS, COILS, FILTERS, PLUMBING, TEMPERATURE CONTROLS, LIFE

SAFETY CONTROLS AND PRESSURIZATION CONTROLS.

1. AIR QUALITY, QUANTITY AND PRESSURE RELATIONSHIPS SHALL COMPLY WITH THE LATEST, ANSI/ASHRAE/ASHE STANDARD 170

REQUIREMENTS.

2. COMPLY WITH THE FACILITY'S INFECTIOUS CONTROL RISK ASSESSMENT (ICRA) REQUIREMENTS.

3. MAINTAIN EXISTING AIR QUALITY REQUIREMENTS, AIR PRESSURIZATION AND OTHER UTILITY REQUIREMENTS FOR OCCUPIED AREAS

DURING ANY RENOVATION OR CONSTRUCTION.

4. DETERMINE AND VERIFY THE AREAS SERVED BY THE AFFECTED SYSTEMS.

5. TAKE AIR AND OR/ WATER BALANCE READINGS OF THE SYSTEMS BEING AFFECTED.

6. IF THERE ARE SPACES BEING SERVED OUTSIDE OF THE DEMOLITION OR ADDITION AREA, THE FOLLOWING PROCEDURES MUST BE TAKEN:

a. TAKE AIR AND/OR WATER BALANCE READINGS AS NEEDED TO QUANTIFY THE AIR AND/OR WATER FLOWS DELIVERED TO THE

SYSTEMS OUTSIDE THE AFFECTED AREA.

b. DURING DEMOLITION, TAKE ALL NECESSARY MEASURES TO MAINTAIN THE CORRECT AIR AND/OR WATER FLOWS TO THE SYSTEMS

THAT ARE REMAINING.

c. AFTER THE COMPLETION OF DEMOLITION, VERIFY THAT AIR AND/OR WATER FLOWS ARE CORRECT.

d. AFTER COMPLETING ANY ADDITIONS TO THE SYSTEM, VERIFY THAT AIR AND/OR WATER FLOWS ARE CORRECT.

7. THE CONTRACTOR IS TO PROVIDE TEMPORARY AIR/AND OR WATER SYSTEMS AS NEEDED TO MAINTAIN PROPER TEMPERATURE AND

PRESSURE RELATIONSHIPS OF SPACES REQUIRED TO BE OCCUPIED DURING CONSTRUCTION.

8. ALL TEMPORARY AIR SUPPLY SYSTEMS MUST UTILIZE FINAL FILTERS THAT ARE A MINIMUM OF 90% EFFICIENT (MERV 14). FINAL FILTERS

MUST BE DOWNSTREAM OF ALL AIR SUPPLY COMPONENTS.

ABBREVIATION

GENERAL ABBREVIATIONS

DESCRIPTION ABBREVIATION DESCRIPTION

NOT ALL ABBREVIATIONS APPLY TO THIS SET OF DOCUMENTS

AD ACCESS DOOR/PANEL

AFF ABOVE FINISHED FLOOR

AMB AMBIENT

DIA DIAMETER

DN DOWN

E EXISTING

EC ELECTRICAL CONTRACTOR

EFF EFFICIENCY

GC GENERAL CONTRACTOR

FPM FEET PER MINUTE

FPS FEET PER SECOND

L LENGTH

LF LINEAR FEET

MAX MAXIMUM

MC MECHANICAL CONTRACTOR

MFR MANUFACTURER

MIN MINIMUM

NIC NOT IN CONTRACT

NTS NOT TO SCALE

PC PLUMBING CONTRACTOR

PSIG POUNDS PER SQUARE INCH GAUGE

RPM REVOLUTIONS PER MINUTE

SHT SHEET

TOB TOP OF BEAM

GPM GALLONS PER MINUTE

TOS TOP OF STEEL

BOB BOTTOM OF BEAM

VEL VELOCITY

VFD VARIABLE FREQUENCY DRIVE

UNION

Y STRAINER WITH BLOWDOWN

ELBOW UP

ELBOW DOWN

TEE UP

PIPING

- SOLID LINE INDICATES SYSTEM SUPPLY

-- DASHED LINE INDICATES SYSTEM RETURN

NUMBER INDICATES NOMINAL DIAMETER IN INCHES,

LETTER(S) INDICATES SYSTEM.

REFER TO ABBREVIATIONS FOR SYSTEM TYPE.

GENERAL MECHANICAL SYMBOLS

SYMBOL DESCRIPTION ADDITIONAL REMARKS

# SHEET NOTE

DENOTES SPECIFIC REQUIREMENT FOR THE SHEET ON WHICH THE NOTE APPEARS

AND IS USED TO DESCRIBE WORK THAT IS TOO LENGTHY TO PLACE ON PLAN.

DIAMETER

DENOTES CONNECTION OF NEW WORK TO

EXISTING SYSTEM

PROTECT EXISTING SYSTEM FROM ENTRANCE OF FOREIGN DEBRIS DURING WORK.

ARROW INDICATES DOWNWARD PIPE SLOPE

#/# INDICATES SLOPE IN INCHES PER FOOT

WHERE PIPING IS NOT MARKED, REFER TO SPECIFICATIONS FOR REQUIREMENTS

ARROW INDICATES DIRECTION OF FLOW IN PIPING

ISOLATION VALVE REFER TO SPECIFICATIONS FOR TYPE BASED ON SIZE AND SYSTEM

CHECK VALVE

ARROW INDICATES DIRECTION OF NORMAL FLOW

REFER TO SPECIFICATIONS FOR TYPE BASED ON SIZE AND SYSTEM

PIPE IN SLEEVE REFER TO SPECIFICATIONS FOR TYPE BASED ON SIZE AND SYSTEM

CIRCUIT SETTER, AUTOFLOW, ETC.

REFER TO SPECIFICATIONS FOR TYPE BASED ON SIZE AND SYSTEM

PRESSURE GAUGE

REFER TO SPECIFICATIONS FOR TYPE AND ACCESSORIES

REFER TO SPECIFICATIONS FOR TYPE AND ACCESSORIES

REFER TO SPECIFICATIONS FOR TYPE AND ACCESSORIESTHERMOMETER - HORIZONTAL PIPE

TEE DOWN

TEE HORIZONTAL

PIPE REDUCER

INDICATES POINT WHERE PIPING CHANGES FROM ONE SIZE TO ANOTHER.

SMALL POINT OF ARROW INDICATES SMALLER SIZE SIDE OF TRANSITION.

REQUIRED SERVICE CLEARANCE FOR EQUIPMENT

CONTINUATION

FIRST SYMBOL APPLIES TO ROUND DUCT AND PIPING.

SECOND SYMBOL APPLIES TO RECTANGULAR AND OVAL DUCT.

PLUMBING SYMBOLS

SYMBOL DESCRIPTION ADDITIONAL REMARKS

AIR VENT

AUTOMATIC FLOW CONTROL VALVE

# INDICATES FLOW TO BE BALANCED IN GPM

BACKFLOW PREVENTER

CALIBRATED BALANCING VALVE

VALVE - THROTTLING SERVICE

VALVE - SHUTOFF SERVICE

P/T PORT

PIPE CAP

PIPE CONTINUATION

PRESSURE GAUGE STEAM REFER TO SPECIFICATIONS FOR TYPE AND ACCESSORIES

PRESSURE REDUCING VALVE

PUMP

RELIEF VALVE

S SENSOR

SUCTION DIFFUSER

THERMOMETER - VERTICAL PIPE REFER TO SPECIFICATIONS FOR TYPE AND ACCESSORIES

VACUUM BREAKER

Y STRAINER

STEAM TRAP

CC CONTROLS CONTRACTOR

PIPING

- SINGLE DASH INDICATES DOMESTIC COLD WATER

- DOUBLE DASH INDICATES DOMESTIC HOT WATER

- TRIPLE DASH INDICATES HOT WATER

CIRCULATING

- SOLID INDICATES SANITARY ABOVE FLOOR

- CONTINUOUS DASHED INDICATES VENT

- LONG DASHED LINES INDICATE SANITARY BELOW

FLOOR

NUMBER INDICATES NOMINAL DIAMETER IN INCHES,

LETTER(S) INDICATES SYSTEM.

REFER TO ABBREVIATIONS FOR SYSTEM TYPE.

C.O.

C.O.

ROOF DRAIN

TAG INDICATES DRAIN SIZE IN INCHES AND AREA

OF ROOF DRAINED IN SQUARE FEET

REFER TO PLUMBING FIXTURE SCHEDULE FOR TYPE.

#"RD

# SF

WALL DISCHARGE (DOWNSPOUT NOZZLE)

TAG INDICATES DRAIN SIZE IN INCHES AND AREA

OF ROOF DRAINED IN SQUARE FEET

REFER TO PLUMBING FIXTURE SCHEDULE FOR TYPE.

#"DSN

# SF

FD-# FLOOR DRAIN REFER TO PLUMBING FIXTURE SCHEDULE FOR TYPE.

CLEANOUT

CIRCLE INDICATES UP TO FLOOR OR WALL CLEANOUT.

LINE INDICATES END OF PIPE CLEANOUT LOCATED ABOVE A CEILING.

DOUBLE GRADE CLEANOUT REFER TO DETAILS FOR ADDITIONAL REQUIREMENTS.

ABBREVIATION

PLUMBING ABBREVIATIONS

DESCRIPTION

CHEMICAL VENTCV

CHEMICAL WASTECW

BOTTLE/GLASS FILLERBF

ABBREVIATION DESCRIPTION

DOMESTIC HOT WATERDHW

DOMESTIC HOT WATER CIRCULATIONDHWC

LAVATORYL

NOT ALL ABBREVIATIONS APPLY TO THIS SET OF DOCUMENTS

BACK FLOW PREVENTERBFP

BATH TUBBT

COMPRESSED AIR (NON-MEDICAL)CA

PROPANELPG

LEAVING WATER TEMPERATURELWT

BTU (1000'S)MBH

CONDENSATE DRAINCD

CLEANOUTCO

CONDENSATE PUMPCP

MOP SINKMS

NORMALLY CLOSEDNC

NORMALLY OPENNO

CLINICAL SINKCS

DOMESTIC COLD WATERDCW

DRINKING FOUNTAINDF

NON-POTABLE WATERNPW

POST INDICATOR VALVEPIV

PRESSURE REDUCING VALVEPRVDOUBLE GRADE CLEANOUTDGCO

DEIONIZED WATERDI

DEIONIZED WATER CIRCULATINGDIC

ROOF DRAINRD

REVERSE OSMOSIS WATERRO

DEIONIZED HOT WATERDIH

RPZ

S

REDUCED PRESSURE ZONE (BACK FLOW PREVENTER)

SINK

DEIONIZED HOT WATER CIRCULATINGDIHC

DISTILLED WATERDIS

DISTILLED WATER CIRCULATINGDISC

SANITARY SEWERSAN

DOMESTIC SOFT COLD WATERSCW

DOMESTIC SOFT HOT WATERSHW

DIALYSIS WATER RETURNDR

DIALYSIS WATER SUPPLYDS

DRAIN TILEDT

DOMESTIC SOFT HOT WATER CIRCULATINGSHWC

SEWAGE EJECTORSE

SHOWERSH

EMERGENCY EYE WASHEEW

EMERGENCY SHOWERES

EMERGENCY SHOWER AND EYE WASH COMBOESEW

STORM OVERFLOWSO

SUMP PUMPSP

SERVICE SINKSS

EXPANSION TANKET

ELECTRIC WATER COOLEREWC

ENTERING WATER TEMPERATUREEWT

STORM SEWERST

TEMPERATURETEMP

URINALUR

FILTERF

FLOOR CLEANOUTFCO

FLOOR DRAINFD

VENTV

VENT THROUGH ROOFVTR

FLOOR SINKFS

WB

WC

WALL BOX

WATER CLOSET

NATURAL GASG

WALL CLEANOUTWCO

GRADE CLEANOUTGCO

HUB DRAINHD

WATER HEATERWH

WATER SOFTENERWS

HORSEPOWERHP

WPD

YCO

WATER PRESSURE DROP

YARD CLEANOUTGREASE VENTGV

HOSE BIBHB

GREASE WASTEGW

DOWN SPOUT NOZZLEDSN

RECTANGULAR DUCTWORK

W = DIMENSION IN VIEW (INCHES)

H = DIMENSION PERPENDICULAR TO VIEW (INCHES)

ROUND DUCTWORK

D = DUCT DIAMETER

TURNING VANES

FLEXIBLE PIPING

WxH

D"Ø

HVAC SYMBOLS

SYMBOL DESCRIPTION ADDITIONAL REMARKS

W/H

FLAT OVAL DUCTWORK

W = DIMENSION IN VIEW (INCHES)

H = DIMENSION PERPENDICULAR TO VIEW (INCHES)

REFER TO DUCT CONSTRUCTION SCHEDULE AND SPECIFICATIONS FOR ADDITIONAL

INFORMATION AND REQUIREMENTS.

REFER TO DUCT CONSTRUCTION SCHEDULE AND SPECIFICATIONS FOR ADDITIONAL

INFORMATION AND REQUIREMENTS.

REFER TO DUCT CONSTRUCTION SCHEDULE AND SPECIFICATIONS FOR ADDITIONAL

INFORMATION AND REQUIREMENTS.

REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION AND REQUIREMENTS.

DUCT CROSS SECTION - SUPPLY

DUCT CROSS SECTION - RETURN

DUCT CROSS SECTION - EXHAUST

CROSS SECTION INDICATES DUCT EXTENDING PERPENDICULAR TO THE PAGE. IN

PLAN VIEW THIS INDICATES A DUCT RISE OR DROP TO ANOTHER LEVEL. SOLID

INTERIOR LINE INDICATES EXTENSION UP. DASHED INTERIOR LINE INDICATES

EXTENSION DOWN.

MANUAL BALANCE DAMPER

REFER TO SPECIFICATIONS FOR TYPE. LOCATE MANUAL BALANCE DAMPERS IN AN

ACCESSIBLE LOCATION AND AS CLOSE TO THE MAIN DUCT AS POSSIBLE.

CONTROL DAMPER

FIRE/SMOKE DAMPER

REFER TO SPECIFICATIONS FOR TYPE. LOCATE DAMPERS IN AN ACCESSIBLE

LOCATION AND PROVIDE ACCESS DOORS/PANELS IN DUCT AND CEILING/WALL.

DIFFUSER

REFER TO SPECIFICATIONS FOR TYPE.

FLEXIBLE DUCT

REFER TO SPECIFICATIONS FOR TYPE. REFER TO DETAILS FOR INSTALLATION

REQUIREMENTS. MAXIMUM LENGTH SHALL BE 48 INCHES UNLESS NOTED OTHERWISE

ON THE PLANS OR IN THE SPECIFICATIONS.

REFER TO SCHEDULE, DETAILS AND SPECIFICATIONS FOR ADDITIONAL INFORMATION

AND INSTALLATION REQUIREMENTS.

VARIABLE AIR VOLUME BOX - NO COIL

REFER TO SCHEDULE, DETAILS AND SPECIFICATIONS FOR ADDITIONAL INFORMATION

AND INSTALLATION REQUIREMENTS.

VARIABLE AIR VOLUME BOX - HOT WATER COIL

REFER TO SCHEDULE, DETAILS AND SPECIFICATIONS FOR ADDITIONAL INFORMATION

AND INSTALLATION REQUIREMENTS.

VARIABLE AIR VOLUME BOX - ELECTRIC COIL

VB-#

### CFM

VAV BOX TAG

# = REFERENCE NUMBER IN SCHEDULE

### = AIRFLOW IN CFM

REFER TO VARIABLE VOLUME BOX SCHEDULE FOR TYPES AND SIZING. AIRFLOW

LISTED IS NOMINAL DESIGN CFM AND GPM. FINAL VALUES ARE TO BE DETERMINED BY

TESTING AND BALANCING CONTRACTOR AND PROGRAMMED BY CONTROLS

CONTRACTOR.

VB-#

#.# GPM

VAV BOX TAG

# = REFERENCE NUMBER IN SCHEDULE

#.# = WATER FLOW RATE IN GPM

REFER TO SCHEDULE, DETAILS AND SPECIFICATIONS FOR ADDITIONAL INFORMATION

AND INSTALLATION REQUIREMENTS.

VARIABLE AIR VOLUME BOX - DUAL DUCT

D#

DIFFUSER TAG

D = TYPE # = TYPE NUMBER

### = AIRFLOW IN CFM

REFER TO DIFFUSER SCHEDULE FOR TYPE DESCRIPTIONS AND SIZING. BALANCE TO

AIRFLOW LISTED. WHEN TYPE IS NOT GIVEN AND ONLY CFM IS DESIGNATED, PROVIDE

D1 FOR SUPPLY OR G1 FOR RETURN/EXHAUST.

FLOW ARROW ARROW INDICATES DIRECTION OF AIRFLOW FROM DIFFUSERS WITH ADJUSTABLE

THROWS.

DIFFUSER BLANK OFF SHADED AREA INDICATES QUADRANT OF DIFFUSER TO BE PROVIDED WITH BLANK OFF

PANEL.

RETURN GRILLE

EXHAUST GRILLE

WALL REGISTER / GRILLE

DUCT MOUNTED REGISTER / GRILLE

LINEAR SLOT

REFER TO VARIABLE VOLUME BOX SCHEDULE FOR TYPES AND SIZING. AIRFLOW

LISTED IS NOMINAL DESIGN CFM AND GPM. FINAL VALUES ARE TO BE DETERMINED BY

TESTING AND BALANCING CONTRACTOR AND PROGRAMMED BY CONTROLS

CONTRACTOR.

SMOKE DAMPER

REFER TO SPECIFICATIONS FOR TYPE. LOCATE DAMPERS IN AN ACCESSIBLE

LOCATION AND PROVIDE ACCESS DOORS/PANELS IN DUCT AND CEILING/WALL.

ABBREVIATION

HVAC ABBREVIATIONS

DESCRIPTION

AIR BLENDERAB

AIR CONDITIONING UNIT (SPLIT SYSTEM INDOOR UNIT)AC

AIR HANDLING UNITAHU

NOT ALL ABBREVIATIONS APPLY TO THIS SET OF DOCUMENTS

BOILER FEED UNITBFU

BOILERBLR

CONSTANT AIR VOLUME BOXCAV

COOLING COILCC

CONDENSATE DRAINCD

CUBIC FEET PER MINUTECFM

CHILLERCH

CONDENSATE PUMPCP

CONDENSER WATER RETURNCR

CONDENSER WATER SUPPLYCS

COOLING TOWERCT

CONDENSING UNITCU

CABINET UNIT HEATERCUH

CHILLED WATER RETURNCWR

CHILLED WATER SUPPLYCWS

DIFFUSERD

DUAL DUCTDD

DIRECT EXPANSIONDX

EXHAUST AIREA

ENTERING AIR TEMPERATUREEAT

EXHAUST FANEF

EFFICIENCYEFF

ENERGY RECOVERY COILERC

ENERGY RECOVERY WHEELERW

EXPANSION TANKET

ENTERING WATER TEMPERATUREEWT

FILTER BANK (CONSISTING OF ONE OR MORE FILTERS)FB

FAN COIL UNITFCU

FLOW MEASURING STATIONFMS

FUEL OIL RETURNFOR

FUEL OIL SUPPLYFOS

FUEL OIL VENTFOV

FIRE DAMPERFRD

FIRE SMOKE DAMPERFSD

FINNED TUBE RADIATORFTR

GRILLEG

GLYCOL CHILLED WATER RETURNGCWR

GLYCOL CHILLED WATER SUPPLYGCWS

GRAVITY EXHAUSTGE

GLYCOL HEATING HOT WATER RETURNGHWR

GLYCOL HEATING HOT WATER SUPPLYGHWS

GRAVITY INTAKEGI

HEATING COILHC

PRESSURE/TEMPERATURE TEST PORT

TEMPERATURE CONTROL SYMBOLS

SYMBOL DESCRIPTION ADDITIONAL REMARKS

WALL MOUNTED CONTROL DEVICE

# INDICATES TYPE

REFER TO MOUNTING HEIGHTS DETAIL FOR MOUNTING ELEVATION.

T = THERMOSTAT H = HUMIDISTAT S = SENSOR (CARBON MONOXIDE, ETC.)

OCCUPANCY SENSOR

REFER TO ELECTRICAL DRAWINGS FOR ADDITIONAL INFORMATION. WHEN SENSOR IS

NOT SHOWN ON ELECTRICAL DRAWINGS IT SHALL BE PROVIDED AND INSTALLED BY

THE TEMPERATURE CONTROLS CONTRACTOR.

DUCT, PIPE, OR CEILING MOUNTED CONTROL

SENSOR

REFER TO SPECIFICATIONS FOR TYPE. REFER TO SEQUENCES AND SCHEMATICS FOR

ADDITIONAL INFORMATION AND REQUIREMENTS.

T = THERMOSTAT H = HUMIDISTAT S = SENSOR (CARBON DIOXIDE, ETC.)

CONTROL VALVE (3-WAY)

CONTROL VALVE (2-WAY)

REFER TO SPECIFICATIONS FOR TYPE. REFER TO SEQUENCES AND SCHEMATICS FOR

ADDITIONAL INFORMATION AND REQUIREMENTS.

F/S FLOW MEASURING STATION REFER TO SPECIFICATIONS FOR TYPE. REFER TO SEQUENCES AND SCHEMATICS FOR

ADDITIONAL INFORMATION AND REQUIREMENTS.

FIRE DAMPER

REFER TO SPECIFICATIONS FOR TYPE. LOCATE DAMPERS IN AN ACCESSIBLE

LOCATION AND PROVIDE ACCESS DOORS/PANELS IN DUCT AND CEILING/WALL.

CD

FD

SD

FS

DAMPER SHALL BE SAME SIZE AS DUCT UNLESS NOTED OTHERWISE. REFER TO

SEQUENCES, SCHEMATICS AND SPECIFICATIONS FOR ADDITIONAL INFORMATION AND

REQUIREMENTS.

REFER TO SPECIFICATIONS FOR TYPE. REFER TO SEQUENCES AND SCHEMATICS FOR

ADDITIONAL INFORMATION AND REQUIREMENTS.

FLOW SWITCHF

ABBREVIATION DESCRIPTION

HORSEPOWERHP

HIGH PRESSURE STEAM CONDENSATEHPC

HIGH PRESSURE STEAM SUPPLY (86 PSIG AND ABOVE)HPS

HEAT RECOVERY CHILLERHRC

HUMIDIFIERHUM

HEATING HOT WATER RETURNHWR

HEATING HOT WATER SUPPLYHWS

LOW PRESSURE STEAM CONDENSATELPC

LOW PRESSURE STEAM SUPPLY (0-12 PSIG)LPS

LOUVERLV

LEAVING WATER TEMPERATURELWT

BTU (1000'S)MBH

MANUAL DAMPERMD

MOTOR OPERATED DAMPERMOD

MEDIUM PRESSURE STEAM CONDENSATEMPC

MEDIUM PRESSURE STEAM SUPPLY (13-85 PSIG)MPS

NORMALLY CLOSED, NOISE CRITERIANC

NORMALLY OPEN, NUMBERNO

OUTDOOR AIROA

PUMPP

PUMPED CONDENSATEPC

PRESSURE REDUCING VALVEPRV

PUMPED STEAM CONDENSATEPSC

REGISTERR

RETURN AIRRA

RELIEF AIRREA

REFRIGERANT DX LIQUIDREFL

REFRIGERANT DX SUCTION GASREFS

RETURN FANRF

RELATIVE HUMIDITYRH

ROOF TOP UNITRTU

SUPPLY AIRSA

SMOKE DAMPERSD

SUPPLY FANSF

STATIC PRESSURESP

STEAMSTM

TEMPERATURETEMP

TRANSFERTR

UNIT HEATERUH

VARIABLE AIR VOLUME BOXVAV

VENT THROUGH ROOFVTR

WET BULB TEMPERATUREWB

WATER COLUMNWC

WATER PRESSURE DROPWPD

WATER SOURCE HEAT PUMP RETURNWSHPR

WATER SOURCE HEAT PUMP SUPPLYWSHPS

NOT ALL SYMBOLS APPLY TO THIS SET OF DOCUMENTS

NOT ALL SYMBOLS APPLY TO THIS SET OF DOCUMENTS

NOT ALL SYMBOLS APPLY TO THIS SET OF DOCUMENTSNOT ALL SYMBOLS APPLY TO THIS SET OF DOCUMENTS

ALL EQUIPMENT OF THE

SAME TYPE SHALL BE

MANUFACTURED BY THE

SAME MANUFACTURER.

MECHANICAL GENERAL NOTES:

A. THESE NOTES APPLY TO ALL SHEETS CONTAINING HVAC, PIPING, PLUMBING, MEDICAL GAS, AND TEMPERATURE CONTROLS WORK. REFER TO PROJECT SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS. WHERE A DISCREPANCY EXISTS BETWEEN THESE PLANS AND THE PROJECT SPECIFICATIONS, THE SPECIFICATION REQUIREMENTS SHALL TAKE PRECEDENCE OVER THE DRAWINGS.

B. VERIFY THE EXISTING CONDITIONS AT THE PROJECT SITE BEFORE SUBMITTING COST PROPOSAL. BE ADVISED THAT LOCATIONS SHOWN ARE APPROXIMATE. AN ATTEMPT HAS BEEN MADE TO SHOW ALL PIPING, FIXTURES, DUCTWORK, AND OUTLETS. CONTRACTOR SHALL VISIT THE SITE TO VERIFY COMPONENTS, LOCATIONS AND SIZES SHOWN OR NOT SHOWN. ALL COMPONENTS NEED TO BE REMOVED IN THE DEMOLITION AREA UNLESS NOTED ON THE DRAWINGS. IF DEVIATION BETWEEN EXISTING CONDITIONS AND NEW WORK IS FOUND, CONTRACTOR SHALL NOTIFY

ENGINEER.

C. IT IS MANDATORY THAT THE EXISTING BUILDING REMAIN IN CONTINUOUS AND NON-INTERRUPTED OPERATION DURING THE CONSTRUCTION OF THE ADDITIONS AND REMODELING/ALTERATION OF THE EXISTING BUILDING. SERVICES TO THE EXISTING BUILDING SHALL BE KEPT ON CONTINUOUS OPERATION EXCEPT DURING SCHEDULED SHUTDOWNS FOR EXTENSION OR MODIFICATION. PLAN TO COMPLETE SHUTDOWNS DURING OFF HOURS TO MINIMIZE IMPACT TO THE OWNER. COORDINATE SHUTDOWNS WITH THE OWNER A MINIMUM OF 14 DAYS PRIOR TO WORK. PROVIDE TEMPORARY SERVICES WHERE NECESSARY TO ACCOMPLISH ANY SHUTDOWN. THIS INCLUDES BUT IS NOT LIMITED TO STAFFING AND EQUIPMENT FOR FIRE WATCHES, PROVISIONS FOR BOTTLED WATER, AND TEMPORARY HEATING OR COOLING EQUIPMENT.

TEMPORARY MEASURES SHALL NOT BE REMOVED UNTIL THE PERMANENT SYSTEMS ARE OPERATIONAL AND HAVE PASSED ALL REQUIRED

TESTING.

D. REFER TO THE SPECIFICATIONS AND ARCHITECTURAL PLANS FOR PHASING REQUIREMENTS. DURING EACH PHASE THE CONTRACTOR SHALL COMPLETE ALL WORK LOCATED WITHIN THE BOUNDARY OF THAT PHASE. ANY WORK AND THAT MUST BE COMPLETED IN THE AREA AFTER THAT AREA HAS BEEN TURNED OVER TO THE OWNER SHALL BE IDENTIFIED AT THE BEGINNING OF THE PHASE FOR EVALUATION AND ACCEPTANCE OF

THE OWNER.

E. CONTRACTOR SHALL BE RESPONSIBLE FOR THEIR OWN DEMOLITION, REMOVAL, CAPPING, STORING, ABANDONING, DISCONNECTING, RELOCATING AND RECONNECTION OF EXISTING EQUIPMENT AND MATERIAL. ALL CUTTING, PATCHING, REPAIRING, REPLACEMENT AND

REFINISHING SHALL MATCH THE EXISTING CONSTRUCTION AS NEARLY AS POSSIBLE.

F. EXCEPT WHERE OTHERWISE SHOWN OR NOTED ON THE DRAWINGS AS "TO BE RETAINED, RELOCATED", ALL EXISTING EQUIPMENT AND MATERIAL IN AREAS TO BE REMODELED/ALTERED SHALL BE REMOVED WHERE THEY INTERFERE WITH PROPOSED NEW CONSTRUCTION AND/OR

WITH PROPOSED USAGE OF SPACE BY OWNER AS FOLLOWS:

a. REMOVE ANY PIPING PROTRUDING ABOVE FINISHED FLOOR OR THROUGH WALL AND CAP WITHIN 3 PIPE DIAMETERS OF NEAREST ACTIVE

MAIN WITH MATERIAL TO MATCH EXISTING.

b. REMOVE ALL FIXTURES, CARRIERS, SUPPLY AND WASTE AND VENT PIPING, STEAM, HEATING HOT WATER, HVAC SUPPLY, RETURN AND EXHAUST AS NOTED. CAP WITHIN 3 PIPE DIAMETERS OF NEAREST ACTIVE MAIN. SUPPLY AND RETURN MAINS ON PIPING SYSTEMS

CONVEYING WATER OR GASES SHALL BE VALVED AND CAPPED

c. IN REMODELED/ALTERED AREAS, ANY PIPING OR DUCTWORK PASSING THROUGH THE REMODELED AREAS TO SERVE (OR BEING SERVED FROM EXISTING ADJACENT, REMOTE, OR SURROUNDING AREAS THAT ARE TO REMAIN) SHALL BE RETAINED AND KEPT OPERATIONAL AND SHALL BE REROUTED IN ALL CASES WHERE THEY INTERFERE WITH ANY NEW WORK OR USAGE TO BE ACCOMPLISHED IN THE

REMODELED AREA.

d. REMOVE UNUSED OR ABANDONED HANGERS AND PATCH ABANDONED PENETRATIONS TO MATCH EXISTING.

e. PENETRATIONS THROUGH EXISTING WALLS AND FLOORS FORMERLY OCCUPIED BY REMOVED PIPING OR DUCTWORK SHALL BE PATCHED

TO MATCH EXISTING CONSTRUCTION.

f. RE-SUPPORT ANY PIPING AND DUCTWORK THAT WAS SUPPORTED FROM BUILDING ELEMENTS REMOVED AS PART OF THE WORK.

g. MAINTAIN CONTROL WIRING OR PNEUMATIC TUBING REQUIRED FOR THE CONTINUED PROPER OPERATION OF THE BUILDING

AUTOMATION SYSTEM.

G. ALL EXISTING EQUIPMENT BEING REMOVED WILL BE HANDED OVER TO OWNER FOR FIRST RIGHT OF SALVAGE. IF OWNER REFUSES SALVAGE

ITEMS, REMOVING CONTRACTOR SHALL BE RESPONSIBLE FOR DISPOSAL.

H. CONTRACTOR SHALL REFER TO THE DRAWINGS OF ALL TRADES TO FAMILIARIZE THEMSELVES WITH EXTENT OF WORK INCLUDING BUT NOT

LIMITED TO WHERE NEW PARTITIONING IS BEING INSTALLED, WHERE EXISTING PARTITIONING IS BEING REMOVED, WHERE CEILINGS ARE BEING

REMOVED AND/OR REPLACED, ETC.

I. THESE DRAWINGS ARE NECESSARILY DIAGRAMMATIC IN NATURE. NOT ALL FITTINGS, OFFSETS, VENTS OR DRAINS ARE SHOWN. THE CONTRACTOR SHALL INCLUDE ALL FITTINGS, OFFSETS, VENTS, DRAINS, AND DEVICES REQUIRED TO PROVIDE A COMPLETE AND FUNCTIONING

SYSTEM.

J. PERFORM AIR AND FLUID BALANCE PRE-TEST ON ALL DISTRIBUTION EQUIPMENT AND ALL AIR OUTLETS IN THE AREA PRIOR TO COMMENCING

WORK. SUBMIT PRE-TEST INFORMATION TO OWNER/ENGINEER.

K. PROVIDE ACCESS DOORS IN DUCTWORK AND/OR ARCHITECTURAL ELEMENTS WHERE REQUIRED TO ACCESS ALL EQUIPMENT REQUIRING MAINTENANCE AND ADJUSTMENT. THIS EQUIPMENT INCLUDES BUT IS NOT LIMITED TO SENSORS, DAMPERS, ACTUATORS, CONTROL DEVICES, VALVES, ETC. ACCESS DOORS SHALL BE SIZED TO PROVIDE APPROPRIATE ACCESS BASED ON HEIGHT OF ACCESS REQUIRED AND ACTIVITY.

INSTALL SUCH THAT ACCESS DOOR IS FULLY OPERABLE WITHOUT THE REMOVAL OF ARCHITECTURAL ELEMENTS SUCH AS CEILING RUNNERS, SUPPORTS, ETC. INSTALL IN A LOCATION SUCH THAT STEPPING OR LEANING OVER PERMANENT EQUIPMENT OR FURNITURE IS NOT REQUIRED.

WHERE ACCESS DOORS ARE REQUIRED IN ARCHITECTURAL ELEMENTS THAT PROVIDE A FIRE AND/OR SMOKE RATING, ACCESS DOOR SHALL

MAINTAIN THE REQUIRED RATING.

L. SEAL ALL WALL PENETRATIONS (DUCTWORK, PIPING, CONTROLS, CONDUITS, ETC.) WITH NON-COMBUSTIBLE MATERIAL. SEAL PENETRATIONS INTO ROOMS THAT REQUIRE PRESSURE CONTROL OR SOUND ISOLATION. WITH NON-COMBUSTIBLE MATERIAL AND CAULK.

M. PIPING AND DUCTWORK SHALL NOT BE ROUTED OVER ELECTRICAL AND TELECOM ROOMS. WHERE ROUTING OVER SUCH ROOMS IS UNAVOIDABLE, CONTRACTOR SHALL COORDINATE WITH OWNER, DESIGN TEAM, AHJ, AND OTHER TRADES REGARDING LOCATION OF PANELS AND UTILITY ROUTING AND SHALL PROVIDE DRIP PANS UNDER ALL UTILITIES WITH MOISTURE SENSORS OR DRAIN PIPING AS REQUIRED BY THE

SPECIFICATIONS.

N. REMOVAL AND REINSTALLATION OF CEILINGS REQUIRED FOR THE COMPLETION OF WORK IS THE RESPONSIBILITY OF THE CONTRACTOR.

CONTRACTOR SHALL REPAIR OR REPLACE ALL DAMAGED CEILING COMPONENTS TO MATCH EXISTING. WHERE AN IDENTICAL MATCH IS NO LONGER AVAILABLE, CONTRACTOR SHALL PROVIDE A SIMILAR REPLACEMENT UPON APPROVAL FROM THE OWNER.

O. FLEXIBLE DUCTWORK SHALL HAVE A MAXIMUM LENGTH OF 48" REGARDLESS OF LENGTH SHOWN ON DRAWINGS. FLEX DUCT INSTALLATION SHALL BE AT TERMINAL ENDS ONLY. CONNECTIONS AT VAV BOX INLETS SHALL BE SOLID HARD DUCT. THE DUCTWORK AT ANY FIRE AND/OR FIRE

SMOKE DAMPER SHALL BE HARD DUCT.

P. LOCATE PIPING AND DUCTWORK IN EXTERIOR BUILDING WALLS ON THE WARM SIDE OF THE BUILDING AND VAPOR BARRIER. COORDINATE INSTALLATION OF BUILDING INSULATION TO RUN CONTINUOUS BETWEEN PIPING AND BUILDING WALL.

Q. SUPPORT ALL DUCTWORK, PIPING AND EQUIPMENT FROM BUILDING STRUCTURE MEMBERS. ROUTE DUCT MAINS TIGHT TO STRUCTURE UNLESS NOTED OTHERWISE. HOLD PIPING TIGHT TO BOTTOM OF STRUCTURAL MEMBERS OR RUN THROUGH JOIST WEBS IF POSSIBLE. DO NOT USE WIRE OR PERFORATED METAL TO SUPPORT PIPING. DO NOT SUPPORT PIPING FROM OTHER PIPING, DUCTWORK, AND/OR ELECTRICAL CONDUITS. SUPPORT FROM BOTTOM CHORD OF BAR JOISTS ONLY AT PANEL POINTS. ALL COMPONENTS REQUIRING MAINTENANCE SHALL BE SUPPORTED IN SUCH A MANNER AS TO BE READILY ACCESSIBLE WITHOUT REMOVAL OF THE CEILING SYSTEM AND TO ALLOW FOR REMOVAL

FROM THE SYSTEM WHEN SUCH REMOVAL IS REQUIRED FOR MAINTENANCE.

R. PROVIDE CONSTRUCTION FILTERS ON AIR MOVING EQUIPMENT SERVING THE CONSTRUCTION AREA AS WELL AS ALL RETURN/EXHAUST DUCT PENETRATIONS COMING FROM THE CONSTRUCTION AREA. AT THE COMPLETION OF WORK, REMOVE ALL TEMPORARY AND CONSTRUCTION

FILTERS AND PROVIDE NEW FILTERS FOR ALL AIR MOVING EQUIPMENT.

S. PROTECT ALL DUCTWORK AND PIPING DURING CONSTRUCTION. REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION. AT A MINIMUM, DUCTWORK AND PIPING ENDS SHALL BE COVERED AND SEALED TO PREVENT THE COLLECTION OF DUST AND DEBRIS. CLEAN ALL INTERIOR SURFACES PRIOR TO INSTALLATION AND PROTECT ONCE INSTALLED. MEDICAL GAS PIPING SHALL BE PROTECTED IN ACCORDANCE WITH NFPA

99 REQUIREMENTS.

T. AT THE COMPLETION OF WORK, CLEAN ALL STRAINERS PROVIDED AS A PART OF THE WORK AS WELL AS PRIMARY SYSTEM STRAINERS LOCATED AT PUMPS WHERE SYSTEMS WERE EXTENDED. ON EXISTING EQUIPMENT, COORDINATE WORK WITH OWNER.

U. PROVIDE INTERMEDIATE TESTING AND BALANCING AT THE COMPLETION OF EACH PHASE AND AS REQUIRED TO MAINTAIN PROPER OPERATION OF SYSTEMS SERVING AREAS OF THE FACILITY IN USE INCLUDING BUT NOT LIMITED TO OCCUPIED AREAS, STORAGE AREAS, AND OTHER AREAS

DEEMED CRITICAL BY THE OWNER OR AHJ.

V. UNLESS NOTED OTHERWISE, DETAILS SHOWN WITHIN THESE DOCUMENTS ARE APPLICABLE FOR ALL PIPING, EQUIPMENT AND DUCTWORK

INSTALLATIONS WHETHER OR NOT SPECIFICALLY NOTED.

W. REFER TO SCHEDULES FOR SIZES OF FINAL RUNOUTS TO EQUIPMENT, FIXTURES, DIFFUSERS, GRILLES, AND TERMINAL DEVICES. FINAL RUNOUT SIZES LISTED SHALL BE USED TO WITHIN 10 EQUIVALENT DIAMETERS OF FINAL CONNECTION POINT. FINAL PIPING CONNECTION TO EQUIPMENT SHALL MATCH EQUIPMENT CONNECTION SIZE, PROVIDE TRANSITIONS AS REQUIRED. REFER TO DETAILS, DIAGRAMS AND SCHEMATICS FOR

ADDITIONAL FINAL CONNECTION REQUIREMENTS.

X. FOR DUCTWORK PENETRATING A ONE HOUR FIRE RATED WALL WHERE A FIRE DAMPER IS NOT SHOWN, PROVIDE U.L. LISTED THROUGH PENETRATION FIRE STOPPING SYSTEM THAT IS SPECIFIC TO THE WALL CONSTRUCTION ASSEMBLY AND COMPLIANT WITH ASTM E814. THE SYSTEM SHALL BE FIRE TESTED PER ASTM E119 AND COMPLY WITH EXCEPTION 1 OF 2018 IBC PART 717.5.2. INSTALL SYSTEM IN STRICT COMPLIANCE WITH THE FIRE STOPPING MANUFACTURER'S U.L. APPROVED DETAIL. WHERE EXISTING WALLS ARE BEING UPGRADED TO A ONE HOUR FIRE RATED WALL, PROVIDE U.L. LISTED THROUGH PENETRATION FIRE STOPPING SYSTEM FOR ALL NEW AND EXISTING PENETRATIONS.

REFER TO THE ARCHITECTURAL LIFE SAFETY PLANS FOR LOCATIONS OF FIRE RATED WALLS. ALL DUCTWORK PENETRATIONS SHALL BE INSPECTED BY AN APPROVED THIRD PARTY INSPECTION AGENCY IN ACCORDANCE WITH ASTM E2174. THE INSPECTION AGENCY SHALL BE PROCURED BY THE CONTRACTOR. DOCUMENTATION OF APPROVED INSPECTION SHALL BE INCLUDED WITH PROJECT CLOSEOUT

DOCUMENTATION.

Y. FIRE ALARM CONTRACTOR SHALL PROVIDE A DUCT SMOKE DETECTOR FOR EACH SMOKE OR FIRE/SMOKE DAMPER AS REQUIRED BY CODE.

MECHANICAL CONTRACTOR SHALL COORDINATE THE LOCATION OF EACH DUCT SMOKE DETECTOR AND SHALL INSTALL THEM IN THE DUCT.

Z. FOR ALL PIPING, CONDUIT, AND OTHER ITEMS PENETRATING A FIRE RATED WALL, PROVIDE U.L. LISTED THROUGH PENETRATION FIRE STOPPING SYSTEM THAT IS SPECIFIC TO THE WALL CONSTRUCTION ASSEMBLY AND COMPLIANT WITH ASTM E814. INSTALL SYSTEM IN STRICT COMPLIANCE WITH THE FIRE STOPPING MANUFACTURER'S U.L. APPROVED DETAIL. WHERE EXISTING WALLS ARE BEING UPGRADED TO FIRE RATED WALLS OR THE FIRE RATING IS BEING MODIFIED, PROVIDE U.L. LISTED THROUGH PENETRATION FIRE STOPPING SYSTEM FOR ALL NEW AND EXISTING PENETRATIONS. REFER TO THE ARCHITECTURAL LIFE SAFETY PLANS FOR LOCATIONS OF FIRE RATED WALLS.

AA. IN AREAS WHERE MECHANICAL OR PLUMBING WORK PENETRATES INTERIOR OR EXTERIOR WALLS, CEILING PANELS, GRID SYSTEMS, GYPSUM CEILINGS AND/OR BULKHEADS, CONTRACTOR SHALL BE REQUIRED TO PATCH AND REPAIR PENETRATIONS AS A RESULT OF THE WORK.

Location

Issue Date

Specialized Engineering Solutions

1300 Baxter Street, Suite 355

FULLY SPRINKLERED

COLUMBIA VA HEALTH CARE SYSTEM, COLUMBIA, SC

544-20-107PROJECT # 544-20-107

EHRM INFRASTRUCTURE UPGRADES

www.atriaxgroup.com

Atriax, pllc

102 3rd Avenue, NE

PO Box 1629, Hickory, NC 28603

Phone: 828.315.9962

Fax: 828.315.9964

NC Engineering License No.: P-0214

NC Architectural License No.: 51254

Project Number

Building Number

Drawing Number

Project Title

Checked Drawn

Drawing Title

Approved:

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANT

Project Director

Revisions: Date:

FOR OFFICIAL USE ONLY (FOUO)

FOR OFFICIAL USE ONLY (FOUO)

Wiley|Wilson 127 Nationwide Drive Lynchburg, VA 24502 Phone: 434.947.1901 www.wileywilson.com

VA FORM 08 - 6231

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MECHANICAL SYMBOLS AND

ABBREVIATIONS VARIOUS

07/14/2022

100% CONSTRUCTION

DOCUMENTS

Revisions: Date:

CONDENSING UNIT

FAN GUARD

REFRIGERANT

GAUGE

CONNECTION

REFRIGERANT

SUCTION LINE

REFRIGERANT LIQUID LINE,

FILTER-DRYER AND SIGHT GLASS

INSTALLED PER MANUFACTURER

SPECIFICATIONS

CONDUIT - POWER

AND CONTROL

CONDENSER

COIL

18" HIGH,

MINIMUM 4'

LONG

EQUIPMENT

RAILS

ROOF CAP AND CURB

NOTE: ELECTRICAL CONTRACTOR SHALL GROUND ROOF MOUNTED CONDENSING

UNIT TO LIGHTNING PROTECTION SYSTEM ON BUILDINGS WITH EXISTING LIGHTNING

PROTECTION SYSTEM.

CONDENSING UNIT

FAN GUARD

REFRIGERANT GAUGE

CONNECTION

REFRIGERANT

SUCTION LINE

REFRIGERANT LIQUID LINE, FILTER-

DRYER AND SIGHT GLASS INSTALLED

PER MANUFACTURER SPECIFICATIONS CONDUIT - POWER AND

CONTROL

6" THICK CONCRETE PAD -

EXTEND 6" BEYOND UNIT

ALL AROUND

THERMOSTAT/

HUMIDISTAT

60"

A. COORDINATE ELEVATION OF DEVICES WITH ALL ADJACENT DEVICES INCLUDING THOSE WITH OTHER TRADES. ALL DEVICES WHICH HAVE ADA AND NON-ADA HEIGHTS LISTED SHALL BE MOUNTED TO COMPLY WITH ADA EXCEPT WHERE NOTED ON THE PLANS AS NON-ADA.

B. GROUP DEVICES IN AN ORGANIZED AND UNIFORM MANNER.

C. REFER TO ARCHITECTURAL ELEVATIONS FOR ADDITIONAL REQUIREMENTS. WHERE THESE REQUIREMENTS DIFFER FROM THE ARCHITECTURAL PLANS, THE ARCHITECTURAL PLANS SHALL TAKE PRECEDENCE.

D. ALL DEVICES SHALL BE COORDINATED SO AS NOT TO INTERRUPT A BACK SPLASH OR MATERIAL TRANSITIONS. REFER TO ARCHITECTURAL ELEVATION TO CONFIRM DEVICE IS NOT LOCATED WITHIN TRANSITION AREA.

E. PROVIDE BACKING IN WALLS WHERE WALL MOUNTED DEVICES OR EQUIPMENT ARE INSTALLED. REFER TO ARCHITECTURAL SPECIFICATIONS.

SPLIT SYSTEM DX CONTROLS:

• CONSISTS OF WALL/CEILING MOUNTED BLOWER EVAPORATOR UNIT, ROOF/GRADE MOUNTED CONDENSING UNIT, WALL MOUNTED

CONDITIONING SYSTEMS: THERMOSTAT AND HUMIDISTAT PROVIDED BY TEMPERATURE CONTROLS CONTRACTOR, AND MANUFACTURER

SUPPLIED TEMPERATURE CONTROLLER.

• CYCLE CONDENSING UNIT AND INDOOR UNIT IN UNISON TO MAINTAIN A SPACE TEMPERATURE SETPOINT OF 75°F (ADJUSTABLE). MONITOR ROOM TEMPERATURE, ROOM RELATIVE HUMIDITY, EQUIPMENT STATUS AND CONDENSATE ALARM OUTPUTS FROM EQUIPMENT SUPPLIED CONTROLS THROUGH DDC. SEND ALARM TO THE OPERATOR INTERFACE IF THE SPACE TEMPERATURE EXCEEDS 90°F (ADJUSTABLE) OR SPACE THE SPACE RELATIVE HUMIDITY IS BELOW 8% RH (ADJUSTABLE) OR ABOVE 80% RH (ADJUSTABLE). INTEGRATE ALL MONITORED

PARAMETERS INTO EXISTING SIEMENS BAS.

• SPLIT SYSTEM SHALL BE INTERLOCKED WITH CONDENSATE PUMP FOR PUMP FAILURE AND, UPON PUMP FAILURE, AN ALARM SHALL BE

SENT THROUGH DDC SYSTEM.

COMPUTER ROOM AIR CONDITIONER (CRAC) UNIT CONTROLS:

• CONSISTS OF FLOOR MOUNTED BLOWER EVAPORATOR UNITS WITH LOCAL MONITORING PANEL, GRADE MOUNTED CONDENSING UNIT, MANUFACTURER CONDITIONING SYSTEMS, AND SUPPLIED TEMPERATURE CONTROLLER.

• ALL THREE CRAC UNITS SHALL BE INTERLOCKED WITH EMERGENCY POWER OFF SWITCHES. ALL THREE CRAC UNITS SHALL BE

INTERLOCKED WITH CLEAN AGENT SYSTEM TO SHUT DOWN CRAC UNIT SYSTEM UPON ACTIVATION OF CLEAN AGENT SYSTEM.

• INDOOR EVAPORATOR LOCAL MONITORING PANEL SHALL ACCESS THE FOLLOWING:

1. AUTOMATIC RESTART WITH PROGRAMMABLE DELAY

2. SENSOR CALIBRATION

3. SEQUENTIAL LOAD ACTIVATION

4. CURRENT TEMPERATURE SET POINT AND LOCATION OF SET POINT

5. CURRENT SUPPLY AND RETURN TEMPERATURE AND HUMIDITY

6. UNIT DIAGNOSTICS

7. ALARM HISTORY

8. RUNTIME LOG

9. AUDIBLE/VISUAL ALARM

• CYCLE CONDENSING UNIT AND INDOOR UNIT IN UNISON TO MAINTAIN A SPACE TEMPERATURE SETPOINT OF 75°F (ADJUSTABLE) AND RELATIVE HUMIDITY SETPOINT OF 30-60% RH (ADJUSTABLE). MONITOR SUPPLY AND RETURN TEMPERATURE AND HUMIDITY FOR EACH UNIT, ROOM TEMPERATURE, HUMIDITY, EQUIPMENT STATUS AND CONDENSATE ALARM OUTPUTS FROM EQUIPMENT SUPPLIED CONTROLS THROUGH DDC. SEND ALARM TO THE OPERATOR INTERFACE IF THE SPACE TEMPERATURE EXCEEDS 90°F (ADJUSTABLE) OR SPACE RELATIVE HUMIDITY IS BELOW 20% RH (ADJUSTABLE) OR ABOVE 50% RH (ADJUSTABLE). INTEGRATE ALL MONITORED PARAMETERS INTO

EXISTING SIEMENS BAS.

• NORMAL OPERATION MODE:

1. ALL THREE CRAC UNITS OPERATING AT PART LOAD TO PROVIDE 21,000 CFM OR 7,000 CFM EACH.

• MAINTENANCE/REPAIR OPERATIONS MODE (ONE UNIT DOWN):

1. TWO CRAC UNITS OPERATING AT 9,000 CFM EACH TO PROVIDE 18,000 CFM.

• ALL UNITS SHALL BE CAPABLE OF BEING ISOLATED FOR MAINTENANCE PURPOSES WHILE NOT IMPACTING DATA CENTER COOLING

CAPACITY.

1. UNIT OPERATION SHALL BE INTERLOCKED WITH AN ISOLATION DAMPER LOCATED IN THE RETURN DUCT SERVING EACH UNIT TO

PREVENT RETURN AIR FROM CIRCULATING THROUGH A CRAC UNIT WHILE DOWN FOR MAINTENANCE.

• PROVIDE TEMPERATURE AND HUMIDITY SENSORS IN THE FOLLOWING LOCATIONS FOR IT EQUIPMENT CABINETS.

1. MINIMUM TWO SENSORS PER MONITORED CABINET.

2. SENSORS SHALL BE LOCATED IN CABINETS AT THE ENDS OF CONTIGUOUS ROWS, AND IN EVERY THIRD CABINET IN THE MIDDLE OF A

CONTIGUOUS ROW.

3. TEMPERATURE SENSORS SHALL BE PROVIDED IN THE FRONT MIDDLE AND REAR TOP OF MONITORED CABINETS

A. FRONT MIDDLE SENSOR: CENTERED HORIZONTALLY, INSIDE THE FRONT DOOR, 4 FT +/- 6 INCHES FROM THE FINISHED FLOOR

SURFACE.

B. REAR TOP SENSOR: CENTERED HORIZONTALLY, INSIDE THE REAR DOOR NO MORE THAN 1 FT FROM THE TOP OF THE CABINET.

4. HUMIDITY SENSORS SHALL BE PROVIDED IN THE FRONT MIDDLE OF MONITORED CABINETS.

A. FRONT MIDDLE SENSOR: CENTERED HORIZONTALLY, INSIDE THE FRONT DOOR, 4 FT +/- 6 INCHES FROM THE FINISHED FLOOR

SURFACE.

• CYCLE CONDENSING UNITS AND INDOOR UNITS IN UNISON TO MAINTAIN A SPACE TEMPERATURE SETPOINT OF 75°F (ADJUSTABLE) AND RELATIVE HUMIDITY SETPOINT OF 30% - 60% (ADJUSTABLE). MONITOR ROOM TEMPERATURE, EQUIPMENT STATUS AND CONDENSATE ALARM OUTPUTS FROM EQUIPMENT SUPPLIED CONTROLS THROUGH EXISTING SIEMENS BAS. SEND ALARM TO THE OPERATOR INTERFACE IF THE SPACE TEMPERATURE EXCEEDS 90°F (ADJUSTABLE) OR SPACE RELATIVE HUMIDITY IS BELOW 20% (ADJUSTABLE) OR ABOVE 70%

(ADUSTABLE).

DRIP PAN LEAK DETECTION:

• CONSISTS OF POINT LEAK DETECTION, ZONE LEAK DETECTION PANELS, LINEAR DETECTION SYSTEM, WIRE-FREE SENSORS, AND DCIM

INTEGRATION.

• LIQUID WATER DETECTION SHALL ALARM TO BAS UPON DETECTION OF MOISTURE. MONITORING OF LIQUID WATER DETECTION SHALL BE

CONTINUAL REAL-TIME MONITORING. INTEGRATE ALL MONITORED PARAMETERS INTO EXISTING SIEMENS BAS.

STREET L

4" PVC

AP SEALANT

WATERSTOP

STAINLESS STEEL CLAMP

PRE-FABRICATED

PIPE BOOT

#14x5" FASTENERS

EXISTING MEMBRANE

METAL DECK

ROOF INSULATION

NOTES:

1. MECHANICAL CONTRACTOR SHALL LOCATE AND CUT 4" DIAMETER HOLE, GENERAL CONTRACTOR

SHALL FURNISH AND INSTALL GOOSE NECK ASSEMBLY. CONNECTIONS ARE TO REMAIN LOOSE SO

LINES CAN BE INSTALLED AND MECHANICAL CONTRACTOR SHALL REASSEMBLE GOOSE NECK.

2. INSTALL PIPE BOOT PER MANUFACTURE'S INSTRUCTIONS.

8" MIN.

INSECT SCREEN

FIRESTOPPING

Location

Issue Date

Specialized Engineering Solutions

1300 Baxter Street, Suite 355

FULLY SPRINKLERED

COLUMBIA VA HEALTH CARE SYSTEM, COLUMBIA, SC

544-20-107PROJECT # 544-20-107

EHRM INFRASTRUCTURE UPGRADES

www.atriaxgroup.com

Atriax, pllc

102 3rd Avenue, NE

PO Box 1629, Hickory, NC 28603

Phone: 828.315.9962

Fax: 828.315.9964

NC Engineering License No.: P-0214

NC Architectural License No.: 51254

Project Number

Building Number

Drawing Number

Project Title

Checked Drawn

Drawing Title

Approved:

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANT

Project Director

Revisions: Date:

FOR OFFICIAL USE ONLY (FOUO)

FOR OFFICIAL USE ONLY (FOUO)

Wiley|Wilson 127 Nationwide Drive Lynchburg, VA 24502 Phone: 434.947.1901 www.wileywilson.com

VA FORM 08 - 6231

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20375.007 07/14/2022

M001

MECHANICAL DETAILS AND

CONTROLS VARIOUS

07/14/2022

100% CONSTRUCTION

DOCUMENTS

NO SCALE

AIR-COOLED CONDENSING UNIT - ROOF MOUNTED

NO SCALE

AIR-COOLED CONDENSING UNIT - SLAB MOUNTED AT GRADE

NO SCALE

MECHANICAL EQUIPMENT MOUNTING HEIGHTS

NO SCALE

MISCELLANEOUS CONTROLS

NO SCALE

GOOSE NECK PENETRATION DETAIL

A

A

System No. W-L-7028 F Ratings - 1 and 2 hr (See Item 1)

T Rating - 3/4"

Section A-A

Section A-A

A

A

System No. W-L-7026 F Ratings - 1 and 2 hr (See Item 1)

T Rating - 0Hr L Rating At Ambient - Less Than 1 CFM/sq ft L Rating AT 400 F - Less Than 1 CFM/sq ft

A

A

System No. W-L-7025 F Ratings - 1 and 2 hr (See Item 1)

T Rating - 1/2Hr L Rating At Ambient - Less Than 1 CFM/sq ft L Rating AT 400 F - Less Than 1 CFM/sq ft

1. Wall Assembly - The 1 or 2 hr fire-rated gypsum wallboard/stud wall assembly shall be constructed of the materials and in the manner described in the individual U400 or V400 Series Wall or Partition Design in the UL Fire Resistance Directory and shallinclude the following construction features:

A. Studs - Wall framing shall consist of min 3-1/2 in. (89 mm) wide steel channel studs spaced max 24 in. (610 mm) OC. Additional steel studs shall be used to completely frame the opening.

B. Gypsum Board* - 5/8 in. (16 mm) thick, 4 ft (1.22 m) wide with square or tapered edges. The gypsum board type, thickness, number of layers, fastener type and sheet orientation shall be as specified in the individual U400 or V400 Series Design in the UL Fire Resistance

Directory. Max area of opening is 73.7 sq ft (6.85 m2) with a max dimension of 104 in. (2.64 m).

The hourly F Rating of the firestop system is equal to the hourly fire rating of the wall assembly in which it is installed.

2. Steel Duct - Max 100 in. by 100 in. (2.54 by 2.54 m) No. 26 gauge (or heavier) galv steel duct to be installed either concentrically or eccentrically within the firestop system. The space between the steel duct and periphery of opening shall be min 0 in. ( 0 mm, point contact) to max 2 in. (51 mm). Steel duct to be rigidly supported on both sides of the wall assembly.

3. Firestop System - The firestop system shall consist of the following:

A. Packing Material - (Optional, Not Shown) - Polyethylene backer rod, mineral wool batt insulation or fiberglass batt insulation friction fitted into annular space. Packing material to be recessed from both surfaces of wall as required to accommodate the required thickness of fill material.

B. Fill, Void or Cavity Material* - Sealant - Min 5/8 in. (16 mm) thickness of fill material applied within the annulus, flush with both surfaces of wall. Min 1/4 in. (6 mm) diam bead of fill material shall be applied at the point contact location between the steel duct and the gypsum board. For 2 hr Rated walls when LC150 or LE600 Sealant is used, fill material thickness installed to full depth of gypsum board layers on each side of wall assembly.

SPECIFIED TECHNOLOGIES INC - SpecSeal Series SSS Sealant, SpecSeal LCI Sealant, SpecSeal LCI Sealant, SpecSeal LC150

Sealant or SpecSeal LE 600 Sealant.

C. Steel Retaining Angles - Min No. 16 gauge (0.059 in. or 15 mm) galv steel angles sized to lap steel duct a min of 2 in. (51mm) and to lap wall surfaces a min of 1 in. (25 mm). Angles attached to steel duct on both sides of wall with min No. 10 by 1/2 in. (13 mm) long steel sheet metal screws located a max of 1 in. (25 mm) from each end of steel duct and spaced a max of 6 in. (152 mm) OC.

* Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as

Canada), respectively.

Section A-A

A

A

Section A-A

System No. W-L-5014 F Ratings - 1 and 2 hr (See Item 1)

T Rating - 1 Hr L Rating At Ambient - Less Than 1 CFM/sq ft L Rating AT 400 F - Less Than 1 CFM/sq ft

1. Wall Assembly - The 1 or 2 hr fire-rated gypsum board/stud wall assembly shall be constructed of the materials and in the manner described in the individual U300, U400 or V400 Series Wall and Partition Design in the UL Fire Resistance Directory and shall include the following construction features:

A. Studs - Wall framing may consist of either wood studs or steel channel studs. Wood studs to consist of nom 2 by 4 in. (51 by 102

mm) lumber spaced max 16 in. (406 mm) OC. Steel studs to be min 3-5/8 in. (92 mm) wide and spaced max 24 in. (610 mm) OC.

B. Gypsum Board* - 5/8 in. (16 mm) thick, 4 ft (1.2 m) wide with square or tapered edges. The gypsum board type, thickness, number of layers, fastener type and sheet orientation shall be as specified in the individual U300, U400 or V400 Series Design in the UL Fire Resistance Directory. Max diam of opening is 18 in. (457mm).

The hourly F Rating of the firestop system is equal to the hourly fire rating of the wall assembly inwhich it is installed.

Metallic Sleeve - (Optional, Not Shown) - Cylindrical sleeve fabricated from min 0.016 in. (0.41 mm) to max 0.105 in. (2.7 mm) thick sheet steel. Length of steel sleeve to be equal to the thickness of wall. Longitudinal seam of sleeve welded or overlapped min 1 in.

(25 mm). The ends of the steel sleeve shall be flush or recessed max 1/4 in. (6 mm) from wall surfaces.

2. Through Penetrants - One metallic pipe or tubing to be installed either concentrically or eccentrically within the firestop system. Pipe or tubing to be rigidly supported on both sides of wall assembly. The following types and sizes of metallic pipes or tubing may be used:

A. Steel Pipe - Nom 12 in. (305 mm) diam (or smaller) Schedule 10 (or heavier) steel pipe.

B. Iron Pipe - Nom 12 in. (305 mm) diam (or smaller) cast or ductile iron pipe.

C. Copper Tubing - Nom 4 in. (102 mm) diam (or smaller) Type M (or heavier) copper tube.

D. Copper Pipe - Nom 4 in. (102 mm) diam (or smaller) Regular (or heavier) copper pipe.

3. Pipe Coverings* - One of the following types of pipe coverings shall be used:

A. Pipe and Equipment Covering Materials* - Max 2 in. (51 mm) thick hollow cylindrical heavy density (min 3.5 pcf or 56 kg/m3) glass fiber units jacketed on the outside with an all service jacket. Longitudinal joints sealed with metal fasteners or factory-applied self-sealing lap tape. Transverse joints secured with metal fasteners or with butt tape supplied with the product. The annular space between insulated penetrating item and the edge of the through opening shall be min 0 in.

(point contact) to max 1-1/4 in. (32 mm).

See Pipe and Equipment Covering-Materials* - (BRGU) category in the Building Materials Directory for names of manufacturers. Any pipe covering material meeting the above specifications and bearing the UL Classification Marking with a Flame Spread Index of 25 or less and a Smoke Developed Index of 50 or less may be used.

B. Pipe Covering Materials* - Max 2 in. (51 mm) thick unfaced mineral fiber pipe insulation sized to the outside diam of pipe or tube. Pipe insulation secured with min 18 SWG steel wire spaced max 12 in. (305 mm) OC. The annular space between insulated penetrating item and the edge of the through opening shall be min 0 in. (point contact) to max 1-1/4 in. (32 mm).

IIG MINWOOL L L C - High Temperature Pipe Insulation 1200, High Temperature Pipe Insulation BWT or High

Temperature Pipe Insulation Thermaloc.

C. Sheathing Material* - Used in conjunction with Item 3B. Foil-scrim-kraft or all service jacket material shall be wrapped around the outer circumference of the pipe insulation (Item 3B) with the kraft side exposed. Longitudinal joints and transverse joints sealed with metal fasteners or butt tape.

See Sheathing Materials (BVDV) category in the Building Materials Directory for names of manufacturers. Any sheathing material meeting the above specifications and bearing the UL Classification Marking with a Flame Spread Index of 25 or less and a Smoke Developed Index of 50 or less may be used.

4. Fill, Void or Cavity Material* - Sealant - Min 5/8 in. (16 mm) thickness of fill material applied within annulus, flush with both surfaces of wall. At point contact location between insulated through penetrant and gypsum board, a min 3/8 in. (10 mm) bead of fill material shall be applied to the insulated through penetrant/gypsum board interface on both sides of the wall.

SPECIFIED TECHNOLOGIES INC - SpecSeal Series SSS Sealant or SpecSeal LCI Sealant

* Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification

(such as Canada), respectively.

Section A-A

A

A

System No. W-L-1251 F Ratings - 1 and 2 hr (See Item 1)

T Rating - 0 Hr

1. Wall Assembly - The 1 or 2 hr fire-rated gypsum board/stud shaft wall assembly shall be constructed of the materials and in the manner specified in the individual U400 Series Wall and Partition Designs in the UL Fire Resistance Directory and shall incorporate the following construction features:

A. Steel Studs - "C-H" or "C-T" shaped studs, min 2-1/2 in. (64 mm) wide by 1-1/2 in. (38 mm) deep, fabricated from min No. 25 gauge (0.6 mm thick) galv steel, spaced max 24 in. (610 mm) OC.

B. Gypsum Board* - 1 in. (25 mm) thick, 24 in. (610 mm) wide gypsum liner panels installed vertically. Max diam of circular cutout in gypsum liner panel is 10 in. (254 mm).

C. Gypsum Board* - 1/2 in. or 5/8 in. (13 or 16 mm) thick, 48 in. (1.2 m) wide gypsum boards. The gypsum board type, thickness, number of layers, fastener type and sheet orientation shall be as specified in the individual Wall and Partition Design. Max diam of circular cutout in gypsum board is 10 in. (254 mm).

The hourly F Rating of the firestop system is equal to the hourly fire rating of the wall assembly in which it is installed.

2. Metallic Sleeve - Cylindrical sleeve fabricated from min No. 30 gauge (0.3 mm thick) galv sheet steel and having a min 2 in. (51 mm) lap along the longitudinal seam. Length of the sleeve to be equal to the thickness of the wall. Sleeve installed by coiling the sheet steel to a diam smaller than the through opening, inserting the coil through the opening and releasing the coil to let it uncoil against the circular cutouts in the gypsum board layers. The ends of the steel sleeve shall be flush with each surface of the wall.

3. Through Penetrant - - One metallic pipe, tube or conduit installed concentrically or eccentrically within the firestop system. The annular space between the pipe, tube or conduit and the periphery of the sleeved opening to be min 0 in. (0 mm, point contact) to max 2 in. (51 mm). Pipe, tube or conduit to be rigidly supported on both sides of wall assembly. One of the following types and sizes of pipe, tube or conduit may be used:

A. Steel Pipe - Nom 8 in. (203 mm) diam (or smaller) Schedule 5 (or heavier) steel pipe.

B. Iron Pipe - Nom 8 in. (203 mm) diam (or smaller) cast or ductile iron pipe.

C. Conduit - Nom 4 in. (102 mm) diam (or smaller) rigid steel conduit, steel electrical metallic tubing (EMT) or flexible steel conduit.

D. Copper Pipe or Tube - Nom 4 in. (102 mm) diam (or smaller) Regular (or heavier) copper pipe or Type L (or heavier) copper tube.

4. Firestop System - The firestop system consists of the following items:

A. Packing Material - Min 4 pcf (64 kg/m3) mineral wool batt insulation firmly packed into sleeved opening as a permanent form.

Packing material to extend throughout thickness of wall except for a 1 in. (25 mm) deep recess on the finished side of wall to accommodate the fill material.

B. Fill Void or Cavity Materials* - Sealant or Putty - Min 1 in. (25 mm) thickness of fill material applied with in sleeve, flush with finished surface of wall. At the point contact location, a min 3/8 in. (10 mm) diam bead of fill material shall be applied at the penetrant/sleeve interface.

SPECIFIED TECHNOLOGIES INC - SpecSeal Series SSS Sealant, SpecSeal LCI Sealant, or SpecSeal Putty

* Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as

Canada), respectively.

Section A-A

A

A

System No. W-L-1168 F Ratings - 1 and 2 hr (See Item 1)

T Rating - 1/4, 3/4 and 1 Hr (see Items 2 and 4)

1. Wall Assembly - The 1 or 2 hr fire-rated gypsum wallboard/stud wall assembly shall be constructed of the materials and in the manner described in the individual U400, V400 or W400 Series Wall or Partition Designs in the UL Fire Resistance Directory and shall include the following construction features:

A. Studs - Wall framing shall consist of min 3-5/8 in. (92 mm) wide steel studs spaced max 24 in. (610 mm) OC.

B. Gypsum Board* - Thickness, type, number of layers and fasteners , as specified in the individual U400, V400 or W400

Series design. Max height of opening is 6 in. (152 mm). Max width of opening is 36 in. (914 mm).

The hourly F and FH Ratings of the firestop system are equal to the hourly fire rating of the wall assembly in which it is installed.

2. Through Penetrants - Multiple pipes or conduits installed in single layer array within the firestop system. The annular space between the pipes and conduits and the edges of the opening shall be min 0 in. (point contact) to max 3 in. (76 mm). The separation between pipes and conduits to be min 1/4 in. (6 mm) to max 3 in. (76 mm). Pipes and conduits to be rigidly supported on both sides of wall assembly. The following types and sizes of metallic pipe or conduit may be used:

A. Steel Pipe - Nom 4 in. (102 mm) diam (or smaller) Schedule 5 (or heavier) steel pipe.

B. Conduit - Nom 4 in. (102 mm) diam (or smaller) rigid steel conduit or steel electrical metallic tubing (EMT).

When diam of pipe or conduit is greater than 2 in. (51 mm), T, FT and FTH Ratings are 1/4 hr. Otherwise, T, FT and FTH Ratings are 3/4 hr or 1 hr as detailed in Item 4.

3. Forming Material - (Optional, Not Shown) - Foam backer rod, mineral wool batt insulation or glass fiber insulation packed into opening and recessed min 5/8 in. (16 mm) from each surface of the wall to accommodate fill material.

4. Fill Void or Cavity Materials* - Sealant - Min 5/8 in. (16 mm) thickness of fill material installed to completely fill annular space between pipes, conduits and gypsum wallboard flush with each surface of wall. Min 1/4 in. (6 mm) diam bead of fill material applied to the pipe/wall interface at the point contact locations on both sides of the wall.

SPECIFIED TECHNOLOGIES INC - SpecSeal LC150 Sealant, SpecSeal Series SSS Sealant or SpecSeal LCI Sealant. When SpecSeal

LC150 Sealant is used with max 2 in. (51 mm) diam pipe or conduit, T, FT and FTH Ratings are 3/4 hr. Otherwise, when SpecSeal

LCI or SpecSeal Series SSS Sealant is used with max 2 in. (51 mm) diam pipe or conduit, T, FT and FTH Ratings are 1 hr.

* Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as

Canada), respectively.

A

A

System No. W-L-1049 F Ratings - 1 and 2 hr (See Item 1) T Rating - 0Hr

L Rating At Ambient - Less Than 1 CFM/sq ft L Rating AT 400 F - Less Than 1 CFM/sq ft

Section A-A

1. Wall Assembly - The 1 or 2 hr fire-rated gypsum wallboard/stud wall assembly shall be constructed of the materials and in the manner described in the individual U300 or U400 Series Wall or Partition Design in the UL Fire Resistance Directory and shall include the following construction features:

A. Studs - Wall framing may consist of either wood studs or steel channel studs. Wood studs to consist of nom 2 by 4 in. (51 by 102 mm) lumber spaced 16 in. (406 mm) OC. Steel studs to be min 3-5/8 3-1/2 in. (89 mm) wide and spaced max 24 in. (610 mm) OC. When steel studs are used and the diam of opening exceeds the width of stud cavity, the opening shall be framed on all sides using lengths of steel stud installed between the vertical studs and screw-attached to the steel studs at each end. The framed opening in the wall shall be

4 to 6 in. (102 to 152 mm) wider and 4 to 6 in. (102 to 152 mm) higher than the diam of the penetrating item such that, when the penetrating item is installed in the opening, a 2 to 3 in. (51 to 76 mm) clearance is present between the penetrating item and the framing on all four sides.

B. Gypsum Board* - 5/8 in. (16 mm) thick, 4 ft (1.22 m) wide with square or tapered edges. The gypsum board type, thickness, number of layers, fastener type and sheet orientation shall be as specified in the individual U300 or U400 Series Design in the UL Fire Resistance

Directory. Max diam of opening is 26 in. (660 mm) for steel stud walls. Max diam of opening is 14-1/2 in. (368 mm) for wood stud walls.

The hourly F and FH Ratings of the firestop system are…