S02 - 556-25-102_Greenhouse_Homes_Steam_100CD Dwgs 26SEP25_PART 2.pdf

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseDESIGNER OF RECORD STAMPCONSULTANT

321 4 5 6 7 8 9 10

556-25-102

ELBS JLDRevisions: Date:

10360 Ellison Circle Omaha, NE 68134 Phone: 402.991.5520 www.specializedeng.com

SES Project :23022.019

Calibre 8822 South Ridgeline Boulevard, Suite 310 Highlands Ranch, CO 80129 (303) 730-0434 www.calibre-engineering.com

Calibre Engineering, Inc.

Civil Engineering | Structural Engineering | Whitewater

GREENHOUSE HOMES STEAM

UTILITY

3001 Green Bay Road, North Chicago, IL 60064

09/26/2025

100% CONSTRUCTION

DOCUMENTS

EROSION CONTROL DETAILS

CG500

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.

MECHANICAL GENERAL NOTES:

A. THESE NOTES APPLY TO ALL SHEETS CONTAINING HVAC, PIPING, PLUMBING, 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 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 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. LOCATE PIPING 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.

P. SUPPORT ALL PIPING AND EQUIPMENT FROM BUILDING STRUCTURE MEMBERS. 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. DO NOT SUPPORT FROM WOOD TONGUE AND GROOVE ROOF DECK. 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.

Q. 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.

R. 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.

S. 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.

T. 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.

U. UNLESS NOTED OTHERWISE, DETAILS SHOWN WITHIN THESE DOCUMENTS ARE APPLICABLE FOR ALL PIPING, EQUIPMENT AND DUCTWORK INSTALLATIONS WHETHER OR NOT SPECIFICALLY NOTED. REFER TO DETAIL SHEETS FOR GENERAL CONSTRUCTION DETAILS.

V. 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.

W. 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.

X. CUTTING GRADE MOUNTED FLOORS: CONTRACTOR TO FIELD VERIFY LOCATION AND DEPTH OF EXISTING UTILITIES PRIOR TO SAWCUTTING FLOORS. CONTRACTOR SHALL X-RAY FLOOR, SCOPE PIPING AND USE OTHER APPROPRIATE MEANS TO IDENTIFY EXISTING CONDITIONS, PIPING, OR OTHER UTILITIES PRIOR TO COMMENCING WORK.

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

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 AIRREL

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

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 FILLED

REGION INDICATE EXTENSION UP. NO FILLED REGION 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.

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.

TRANSFER AIR ARROW

### = AIRFLOW IN CFM ARROW INDICATES DIRECTION OF TRANSFER AIR.

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 OR BACKWATER 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

DUCT CONTINUATION

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

ABBREVIATION

GENERAL ABBREVIATIONS

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

GPM GALLONS PER MINUTE

BOB BOTTOM OF BEAM

CC CONTROLS CONTRACTOR

ABBREVIATION DESCRIPTION

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

TOS TOP OF STEEL

VEL VELOCITY

VFD VARIABLE FREQUENCY DRIVE

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.

REFER TO SPECIFICATIONS FOR TYPE. REFER TO SEQUENCES AND

SCHEMATICS FOR ADDITIONAL INFORMATION AND REQUIREMENTS.

FLOW SWITCHF

ABBREVIATION

PLUMBING ABBREVIATIONS

DESCRIPTION

CHEMICAL VENTCV

CHEMICAL WASTECW

BOTTLE/GLASS FILLERBF

DOMESTIC HOT WATERDHW

DOMESTIC HOT WATER CIRCULATIONDHWC

NOT ALL ABBREVIATIONS APPLY TO THIS SET OF DOCUMENTS

BACK FLOW PREVENTERBFP

BATH TUBBT

COMPRESSED AIR (NON-MEDICAL)CA

CONDENSATE DRAINCD

CLEANOUTCO

CONDENSATE PUMPCP

CLINICAL SINKCS

DOMESTIC COLD WATERDCW

DRINKING FOUNTAINDF

DOUBLE GRADE CLEANOUTDGCO

DEIONIZED WATERDI

DEIONIZED WATER CIRCULATINGDIC

DEIONIZED HOT WATERDIH

DEIONIZED HOT WATER CIRCULATINGDIHC

DISTILLED WATERDIS

DISTILLED WATER CIRCULATINGDISC

DIALYSIS WATER RETURNDR

DIALYSIS WATER SUPPLYDS

DRAIN TILEDT

EMERGENCY EYE WASHEEW

EMERGENCY SHOWERES

EMERGENCY SHOWER AND EYE WASH COMBOESEW

EXPANSION TANKET

ELECTRIC WATER COOLEREWC

ENTERING WATER TEMPERATUREEWT

FILTERF

FLOOR CLEANOUTFCO

FLOOR DRAINFD

FLOOR SINKFS

NATURAL GASG

GRADE CLEANOUTGCO

GREASE VENTGV

GREASE WASTEGW

DOWN SPOUT NOZZLEDSN

ABBREVIATION DESCRIPTION

LAVATORYL

PROPANELPG

LEAVING WATER TEMPERATURELWT

BTU (1000'S)MBH

MOP SINKMS

NORMALLY CLOSEDNC

NORMALLY OPENNO

NON-POTABLE COLD WATERNPCW

POST INDICATOR VALVEPIV

PRESSURE REDUCING VALVEPRV

ROOF DRAINRD

REVERSE OSMOSIS WATERRO

RPZ

S

REDUCED PRESSURE ZONE (BACK FLOW PREVENTER)

SINK

SANITARY SEWERSAN

DOMESTIC SOFT COLD WATERSCW

DOMESTIC SOFT HOT WATERSHW

DOMESTIC SOFT HOT WATER CIRCULATINGSHWC

SEWAGE EJECTORSE

SHOWERSH

STORM OVERFLOWSO

SUMP PUMPSP

SERVICE SINKSS

STORM SEWERST

TEMPERATURETEMP

URINALUR

VENTV

VENT THROUGH ROOFVTR

WB

WC

WALL BOX

WATER CLOSET

WALL CLEANOUTWCO

HUB DRAINHD

WATER HEATERWH

WATER SOFTENERWS

HORSEPOWERHP

WPD

YCO

WATER PRESSURE DROP

YARD CLEANOUT

HOSE BIBHB

NON-POTABLE HOT WATERNPHW

INVERT ELEVATIONIE

C.O.

C.O.

PLUMBING SYMBOLS

SYMBOL DESCRIPTION ADDITIONAL REMARKS

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.

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.

SANITARY WYE AND 1/8TH BEND FITTINGS OR

COMBINATION FITTING

SANITARY TEES MAY BE USED IN VERTICAL PIPING WHERE PERMITTED BY CODE.

10360 Ellison Circle Omaha, NE 68134 Phone:

402.991.5520

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

FULLY SPRINKLERED

Office of Construction and Facilities Management

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

STAMP

321 4 5 6 7 8 9 10 www.specializedeng.com SES Project :

DESIGNER OF RECORDCONSULTANT

U.S. Department of Veterans Affairs

8822 S. Ridgeline Blvd, Ste 310 Highlands Ranch, CO 80129 Phone: 303.730.0434

09/26/2025

A u to d e s k D o c s /2

.0

V

A L o v e ll G re e n h o u s e

S te a m

U ti lit y /5

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P

M

MH000

MECHANICAL SYMBOLS AND

ABBREVIATIONS

Greenhouse Homes Steam Utility

3001 GREEN BAY RD, NORTH CHICAGO, IL 60064

556-25-102

09/26/2025 AJA PHD

23022.019

100% CONSTRUCTION

DOCUMENTS

Revisions: Date:

KRYZOWSKI DR

TRUEMPER DR

M E

D A

L O

F H

O N

O R

D R

M E

D A

L O

F H

O N

O R

D R

T R

U E

M P

E R

D R

206 205

EXISTING SOUTH

LOOP DOUBLE BLOCK

AND BLEED VALVES

EXISTING NORTH LOOP DOUBLE

BLOCK AND BLEED VALVES

TO COGEN

PLANT

10360 Ellison Circle Omaha, NE 68134 Phone:

402.991.5520

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

FULLY SPRINKLERED

Office of Construction and Facilities Management

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

STAMP

321 4 5 6 7 8 9 10 www.specializedeng.com SES Project :

DESIGNER OF RECORDCONSULTANT

U.S. Department of Veterans Affairs

8822 S. Ridgeline Blvd, Ste 310 Highlands Ranch, CO 80129 Phone: 303.730.0434

09/26/2025

A u to d e s k D o c s /2

.0

V

A L o v e ll G re e n h o u s e

S te a m

U ti lit y /5

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P

M

MS100

SITE PHASING PLAN -

MECHANICAL

Greenhouse Homes Steam Utility

3001 GREEN BAY RD, NORTH CHICAGO, IL 60064

556-25-102

09/26/2025 AJA PHD

23022.019

100% CONSTRUCTION

DOCUMENTS

1" = 40'-0"

SITE PHASING PLAN - MECHANICAL

CONSTRUCTION PHASING

GENERAL NOTES:

1. GENERAL CONTRACTOR SHALL DEVELOP AND UPDATE A WORK PLAN BASED UPON PHASING PLAN PROVIDED, REVISING PER ITS PROPOSED OPTIMIZED MEANS AND METHODS, AND FEEDBACK FROM THE VA COR, PIPE SHOP, AND OTHER STAKEHOLDERS.

A. THE GOAL IS TO OPTIMIZE INSTALLATION WHILE MINIMIZING IMPACT TO EXISTING PEOPLE AND OPERATION AT LOVELL FHCC.

CONSTRUCTION WITHIN GREENHOUSE HOMES SHALL OCCUR SO AS NOT TO REQUIRE VA TO MOVE PATIENTS FROM EACH BUILDING.

B. GENERAL CONTRACTOR SHALL BE RESPONSIBLE FOR COORDINATING SHUTDOWN OF AFFECTED BUILDINGS WITH VA LOVELL COR

AND AFFECTED VA PARTIES PRIOR TO CONSTRUCTION.

C. VERIFY AFFECTED BUILDINGS ARE PROPERLY ISOLATED FROM CAMPUS STEAM AND CONDENSATE SERVICES PRIOR TO INSTALLING

VALVES. VA REQUIREMENTS STATE THAT DOUBLE ISOLATION SHALL BE IN EFFECT UPSTREAM OF AFFECTED STEAM SYSTEM OR ELSE

CONSTRUCTION SHALL NOT OCCUR.

D. OBTAIN NECESSARY PERMITS AND APPROVALS, SUCH AS HOT WORK PERMITS AND OTHERS, BEFORE EACH PHASE OF WORK.

2. PIPING SHOWN ON SITE PHASING PLAN REPRESENTS EXISTING CAMPUS DISTRIBUTION THAT WILL BE CONNECTED TO EACH

GREENHOUSE HOME. SEE NEW CIVIL AND MECHANICAL DRAWINGS FOR NEW CONSTRUCTION SCOPE OF WORK.

PHASING PLAN:

1. CONSTRUCTION SHALL OCCUR WITHIN UNINHABITED SPACES FIRST. UNINHABITED AREAS INCLUDE ATTIC SPACES, GARAGES, AND

OUTDOOR LANDSCAPING AREAS.

A. PIPING SHALL BE IN INSTALLED IN ATTIC SPACES AS SHOWN ON MECHANICAL DRAWINGS.

a. COORDINATE INSTALLATION OF PIPING IN ATTIC WITH EXISTING PIPING AND HVAC SYSTEMS. EXISTING CONDITIONS ARE NOT SHOWN

ON MECHANICAL DRAWINGS IN THEIR ENTIRETY.

B. STEAM AND CONDENSATE PIPING LOCATED BELOW GRADE SHALL BE INSTALLED AS SHOWN ON CIVIL AND MECHANICAL PLANS.

a. INSTALL STEAM AND CONDENSATE PIPING LOCATED OUTSIDE OF EACH BUILDING FOOTPRINT STARTING AT THE TIE-IN POINT TO

MAIN STEAM DISTRIBUTION PIPING. PIPING SHALL NOT CONNECT TO MAIN CAMPUS STEAM AND CONDENSATE DISTRIBUTION LOOPS

INITIALLY.

b. INSTALLATION OF PIPING BELOW GRADE SHALL CONTINUE UP TO EXTERIOR OF EACH BUILDING.

c. PIPING SHALL THEN BE INSTALLED BELOW GRADE OF GARAGE SPACE AND CAPPED DOWNSTREAM OF DOUBLE BLOCK AND BLEED

VALVES.

• VALVES SHALL BE CLOSED AFTER BEING INSTALLED.

2. FOLLOWING THE COMPLETION OF PIPING INSTALLATION WITHIN UNINHABITED AREAS, TIE-INS FOR EACH BUILDING SHALL OCCUR. TIE- INS WILL BE COMPLETED BASED ON EXISTING VALVES WITHIN STEAM AND CONDENSATE SYSTEMS. TWO OPTIONS FOR BUILDING TIE-INS

ARE PROVIDED:

• BUILDING TIE-IN OPTION A: INCLUDES THE UTILIZATION OF DOUBLE BLOCK AND BLEED VALVES TO BE INSTALLED DURING VA PROJECT NUMBER 556-24-108. OPTION A SHALL BE OMITTED FROM PROJECT IF VA PROJECT NUMBER 556-24-108 HAS NOT BEEN COMPLETED BY

THE START OF CONSTRUCTION.

• BUILDING TIE-INS SHALL BE SPLIT INTO TWO PHASES:

1. BUILDING 201 AND BUILDING 202

2. BUILDING 205 AND BUILDING 206

-PHASE 1 SHALL START BUT COORDINATING SHUTDOWN OF STEAM SERVICES IN SOUTH DISTRIBUTION LOOP.

-UTILIZE THE FOLLOWING DOUBLE BLOCK AND BLEED VALVES FOR SHUTDOWN OF STEAM SERVICES:

1. EXISTING SOUTH LOOP DOUBLE BLOCK AND BLEED VALVES LOCATED ABOVE GRADE AS LABELED ON SITE PLAN DRAWING.

2. EXISTING DOUBLE BLOCK AND BLEED VALVES DBB-HP-1CC-7 AND DBB-PC-1CC-8 INSTALLED DURING VA PROJECT NUMBER

556-24-108.

-CONNECT STEAM AND CONDENSATE PIPING FOR BUILDINGS 201 AND 202 ONCE SHUTDOWN HAS BEEN COMPLETED.

-AFTER TIE-IN HAS BEEN SUCCESSFULLY COMPLETED, REOPEN MAIN SERVICE LOOP DOUBLE BLOCK AND BLEED VALVES TO RESUME

FULL STEAM SERVICE TO CAMPUS.

-PHASE 2 SHALL START BUT COORDINATING SHUTDOWN OF STEAM SERVICES IN NORTH DISTRIBUTION LOOP. BUILDINGS 32, 36, 37, AND 139 WILL BE AFFECTED BY SHUTDOWN.

-UTILIZE THE FOLLOWING DOUBLE BLOCK AND BLEED VALVES FOR SHUTDOWN OF STEAM SERVICES:

1. EXISTING NORTH LOOP DOUBLE BLOCK AND BLEED VALVES LOCATED ABOVE GRADE AS LABELED ON SITE PLAN DRAWING.

2. EXISTING DOUBLE BLOCK AND BLEED VALVES DBB-HP-1CC-5 AND DBB-PC-1CC-6 INSTALLED DURING VA PROJECT NUMBER

556-24-108.

-CONNECT STEAM AND CONDENSATE PIPING FOR BUILDINGS 205 AND 206 ONCE SHUTDOWN HAS BEEN COMPLETED.

-AFTER TIE-IN HAS BEEN SUCCESSFULLY COMPLETED, REOPEN MAIN SERVICE LOOP DOUBLE BLOCK AND BLEED VALVES TO RESUME

FULL STEAM SERVICE TO CAMPUS.

• BUILDING TIE-IN OPTION B: OPERATES UNDER THE ASSUMPTION THAT VA PROJECT NUMBER 556-24-108 HAS NOT BEEN COMPLETED.

-BUILDING TIE-INS SHALL BE MADE DURING CAMPUS WIDE STEAM SHUTDOWN. CONTRACTOR SHALL COORDINATE THE SHUTDOWN

WITH VA PRIOR TO TIE-INS BEING MADE.

-IF ALL FOUR BUILDING TIE-INS CANNOT BE MADE DURING CAMPUS STEAM SHUTDOWN, THEN TIE-INS FOR BUILDINGS 201 AND 202

SHALL BE PRIORITIZED.

-IF BUILDINGS 205 AND 206 CANNOT BE TIED-IN TO THE MAIN CAMPUS STEAM AND CONDENSATE LOOPS DURING THE SHUTDOWN, THE FOLLOWING VALVES SHALL BE USED TO COMPLETE THE TIE-INS AT A LATER TIME:

1. EXISTING NORTH LOOP DOUBLE BLOCK AND BLEED VALVES LOCATED ABOVE GRADE AS LABELED ON SITE PLAN DRAWING.

2. EXISTING STEAM AND CONDENSATE DOUBLE BLOCK AND BLEED VALVES LOCATED IN BASEMENT OF BUILDING 5 INSTALLED AS

PART OF NAVFAC CONSTRUCTION CONTRACT NO. N40083-14-D-0016. SEE BULLETIN #002 FOR FULL SCOPE RELATED TO EXISTING

DOUBLE BLOCK AND BLEED VALVES.

A. NOTE: BUILDINGS 5, 32, 36, 37, AND 139 WILL BE AFFECTED BY THIS POTENTIAL SHUTDOWN.

N

40 40 80

1" = 40'-0"

FEETSCALE

3. ONCE PIPING HAS BEEN COMPLETED IN ALL UNINHABITED SPACES, FINAL EQUIPMENT CHANGEOVERS SHALL BE COMPLETED:

A. CONNECT NEW STEAM HEAT EXCHANGERS TO EXISTING HEATING HOT WATER SYSTEMS AS SHOWN ON FIRST LEVEL MECHANICAL

PLANS FOR ALL BUILDINGS.

B. REPLACE EXISTING HUMIDIFIER WITH NEW DISPERSION GRID AND ASSOCIATED CONNECTION TO HOUSE STEAM FOR HUMIDIFICATION

IN ALL BUILDINGS.

SYMBOL

LEGEND

EXISTING STEAM

SUPPLY

EXISTING

CONDENSATE

RETURN

CAMPUS

BUILDING

MECHANICAL

SCREENED PORCH

ENTRY

IT

STOR

PANTRY

SOILED

PAT TLT

114A

PAT TLT

123A

PAT TLT

115A

PAT TLT

110A

OFFICE

ELECTRICAL

OXY

GARAGE

PAT TLT

124A

PAT TLT

118A

PAT TLT

122A

PAT TLT

116A

CLEAN

CORRIDOR

DEN

KITCHEN

DINING ROOM

CORRIDOR

ALCOVE

103A

LIVING ROOM

CORRIDOR

STUDY

CORRIDOR

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PORCH

SPA

TOILET

117A

PAT TLT

105A

TOILET

PAT TLT

109A

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

COURTYARD

201-AHU-1201-AHU-1

201-SG-1201-SG-1

28x28 UP

28x28 UP

28x28 SA

28x28 RA

(E)3/4" DCW

(E)1 1/2" LPS6

(E)2" G UP

B201-MD101

(E)1" G

(E)1 1/2" LPS UP

(E)CD UP

(E)3/4" DCW UP

201-P-1&2

(E)3/4" G

201-B-1201-B-1

201-B-2201-B-2

(E)2" G UP

(E)1" CD

(E)3/4" G

(E)2" UP

10360 Ellison Circle Omaha, NE 68134 Phone:

402.991.5520

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

FULLY SPRINKLERED

Office of Construction and Facilities Management

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

STAMP

321 4 5 6 7 8 9 10 www.specializedeng.com SES Project :

DESIGNER OF RECORDCONSULTANT

U.S. Department of Veterans Affairs

8822 S. Ridgeline Blvd, Ste 310 Highlands Ranch, CO 80129 Phone: 303.730.0434

09/26/2025

A u to d e s k D o c s /2

.0

V

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S te a m

U ti lit y /5

-1

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P

M

B201-MD101

LEVEL 1 - OVERALL - MECHANICAL

DEMOLITION

Greenhouse Homes Steam Utility

3001 GREEN BAY RD, NORTH CHICAGO, IL 60064

556-25-102

09/26/2025 AJA PHD

23022.019

100% CONSTRUCTION

DOCUMENTS

1. MECHANICAL SYMBOLS AND ABBREVIATIONS SHEET GENERAL NOTES APPLY TO ALL SHEETS.

2. ON DEMOLITION PLANS; EXISTING MECHANICAL SYSTEMS TO BE REMOVED ARE SHOWN HATCHED AND/OR

DASHED, EXISTING MECHANICAL SYSTEMS TO REMAIN ARE SHOWN LIGHT LINE WEIGHT. ON ALL OTHER

PLANS, NEW MECHANICAL SYSTEMS ARE INDICATED WITH HEAVY LINE WEIGHTS.

3. UNLESS NOTED OTHERWISE, DETAILS SHOWN WITHIN THESE DOCUMENTS ARE APPLICABLE FOR ALL

PIPING, EQUIPMENT AND DUCTWORK INSTALLATIONS WHETHER OR NOT SPECIFICALLY NOTED.

4. THE OWNER AND ENGINEER ARE NOT RESPONSIBLE FOR THE CONTRACTOR'S SAFETY PRECAUTIONS OR FOR THE MEANS, METHODS, TECHNIQUES, CONSTRUCTION SEQUENCES, OR PROCEDURES REQUIRED TO

PERFORM THIS WORK.

5. HEATING WATER SYSTEM SHALL CONTAIN 30% PROPYLENE GLYCOL. TEST SYSTEM PRIOR TO COMPLETION

OF WORK TO ENSURE SYSTEM CONTAINS CORRECT PERCENTAGE OF PROPYLENE GLYCOL.

SHEET NOTES:

1. EXISTING HEATING WATER PIPING PREVIOUSLY CONNECTED TO BOILERS SHALL BE REMOVED BACK TO MAIN

AND CAPPED IN PLACE FOR FUTURE CONNECTION TO NEW HEAT EXCHANGERS.

2. REMOVE EXISTING CONDENSATE DRAIN CONNECTED TO EXISTING BOILERS IN ITS ENTIRETY. PATCH WALL

TO MATCH EXISTING WALL CONSTRUCTION.

3. EXISTING GLYCOL FEED TANK SERVING BUILDING 201 HEATING WATER SYSTEM.

4. EXISTING EXPANSION TANK SERVING BUILDING 201 HEATING WATER SYSTEM.

5. REMOVE EXISTING NATURAL GAS PIPING SERVING MECHANICAL EQUIPMENT AND CAP WITHIN 3 PIPE

DIAMETERS OF MAIN.

6. LOW PRESSURE STEAM PIPING ORIGINATING FROM EXISTING GAS FIRED STEAM GENERATOR SHALL BE

REMOVED IN ITS ENTIRETY.

7. REMOVE EXISTING BACKFLOW PREVENTER AND DOMESTIC WATER PIPING WITHIN STORAGE ROOM 108.

REMOVE DOMESTIC COLD WATER PIPING BACK TO NEAREST MAIN AND CAP WITHIN THREE PIPE DIAMETERS.

8. REMOVE EXISTING DOMESTIC COLD WATER PIPING THAT SERVES EXISTING GAS FIRED STEAM GENERATOR.

SEE SHEET B201-MD102 FOR CONTINUATION OF DEMOLITION SCOPE.

GENERAL NOTES:

1/8" = 1'-0"

FIRST LEVEL - OVERALL - MECHANICAL DEMOLITION

N

5 5 10 15 20

1/8" = 1'-0"

FEETSCALE

1/4" = 1'-0"

FIRST LEVEL - ENLARGED PLAN - GARAGE/MECH/ELEC ROOM - MECHANICAL DEMOLITION

N

2 2 4 6 8 10

1/4" = 1'-0"

FEETSCALE

28x28 SA DN

28x28 RA DN

28x28 SA

28x28 RA

ATTIC CATWALK

(E)1 1/2" LPS DN

(E)2" G DN

(E)2" G

(E)2" GHWR

(E)2" GHWS

(E)3/4" CD DN 3

(E)3/4" DCW

(E)3/4" DCW DN

(E)3/4" DCW DN4

10360 Ellison Circle Omaha, NE 68134 Phone:

402.991.5520

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

FULLY SPRINKLERED

Office of Construction and Facilities Management

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

STAMP

321 4 5 6 7 8 9 10 www.specializedeng.com SES Project :

DESIGNER OF RECORDCONSULTANT

U.S. Department of Veterans Affairs

8822 S. Ridgeline Blvd, Ste 310 Highlands Ranch, CO 80129 Phone: 303.730.0434

09/26/2025

A u to d e s k D o c s /2

.0

V

A L o v e ll G re e n h o u s e

S te a m

U ti lit y /5

-1

.B

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E .R

.r v t

/2

/2

:2

:0

P

M

B201-MD102

ATTIC LEVEL - OVERALL -

MECHANICAL DEMOLITION

Greenhouse Homes Steam Utility

3001 GREEN BAY RD, NORTH CHICAGO, IL 60064

556-25-102

09/26/2025 AJA PHD

23022.019

100% CONSTRUCTION

DOCUMENTS

1. MECHANICAL SYMBOLS AND ABBREVIATIONS SHEET GENERAL NOTES APPLY TO ALL SHEETS.

2. ON DEMOLITION PLANS; EXISTING MECHANICAL SYSTEMS TO BE REMOVED ARE SHOWN HATCHED AND/OR

DASHED, EXISTING MECHANICAL SYSTEMS TO REMAIN ARE SHOWN LIGHT LINE WEIGHT. ON ALL OTHER

PLANS, NEW MECHANICAL SYSTEMS ARE INDICATED WITH HEAVY LINE WEIGHTS.

3. UNLESS NOTED OTHERWISE, DETAILS SHOWN WITHIN THESE DOCUMENTS ARE APPLICABLE FOR ALL

PIPING, EQUIPMENT AND DUCTWORK INSTALLATIONS WHETHER OR NOT SPECIFICALLY NOTED.

4. THE OWNER AND ENGINEER ARE NOT RESPONSIBLE FOR THE CONTRACTOR'S SAFETY PRECAUTIONS OR FOR THE MEANS, METHODS, TECHNIQUES, CONSTRUCTION SEQUENCES, OR PROCEDURES REQUIRED TO

PERFORM THIS WORK.

5. HEATING WATER SYSTEM SHALL CONTAIN 30% PROPYLENE GLYCOL. TEST SYSTEM PRIOR TO COMPLETION

OF WORK TO ENSURE SYSTEM CONTAINS CORRECT PERCENTAGE OF PROPYLENE GLYCOL.

SHEET NOTES:

1. EXISTING HUMIDIFIER 201-H-1 SHALL BE REMOVED IN ITS ENTIRETY. DISCONNECT EXISTING CONDENSATE

DRAIN PIPING FROM DUCTWORK DRAINAGE CONNECTION AND CAP IN PLACE FOR CONNECTION TO NEW

HUMIDIFIER. MAINTAIN EXISTING AIR GAP CONNECTION POINT TO HUMIDIFIER SYSTEM.

2. REMOVE STEAM PIPING IN ITS ENTIRETY CONNECTED TO EXISTING STEAM GENERATOR SHOWN ON LEVEL 1

DEMO PLANS.

3. EXISTING CONDENSATE DRAIN PIPING IS EXISTING TO REMAIN FOR CONNECTION TO NEW HUMDIFIER.

4. DOMESTIC COLD WATER PIPING ROUTES DOWNWARDS TO RPZ BACKFLOW PREVENTER LOCATED IN

STORAGE ROOM 108.

GENERAL NOTES:

N

5 5 10 15 20

1/8" = 1'-0"

FEETSCALE

1/8" = 1'-0"

ATTIC LEVEL - OVERALL - MECHANICAL DEMOLITION

SCREENED PORCH

ENTRY

IT

STOR

PANTRY

SOILED

PAT TLT

114A

PAT TLT

123A

PAT TLT

115A

PAT TLT

110A

OFFICE

ELECTRICAL

OXY

GARAGE

PAT TLT

124A

PAT TLT

118A

PAT TLT

122A

PAT TLT

116A

CLEAN

CORRIDOR

DEN

KITCHEN

DINING ROOM

CORRIDOR

ALCOVE

103A

LIVING ROOM

CORRIDOR

STUDY

CORRIDOR

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PORCH

SPA

TOILET

117A

PAT TLT

105A

TOILET

PAT TLT

109A

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

COURTYARD

201-AHU-1201-AHU-1

(E)2" G UP

B201-MH201

4(E)3/4" CD

(E)3/4" CD UP

MECHANICAL

IT

ELECTRICAL

OXY

GARAGE

201-HX-2

201-HX-1

201-P-1&2

201-PRV-1

1 1/2" HPS

2" LPS

1 1/4" LPS UP

1" LPC UP

DBB-HP-201-1

1 1/4" LPS

201-CP-1

DBB-PC-201-2

1" PC

1" CD

1" PC

4" V

3/4" HPS

10360 Ellison Circle Omaha, NE 68134 Phone:

402.991.5520

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

FULLY SPRINKLERED

Office of Construction and Facilities Management

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

STAMP

321 4 5 6 7 8 9 10 www.specializedeng.com SES Project :

DESIGNER OF RECORDCONSULTANT

U.S. Department of Veterans Affairs

8822 S. Ridgeline Blvd, Ste 310 Highlands Ranch, CO 80129 Phone: 303.730.0434

09/26/2025

A u to d e s k D o c s /2

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B201-MH201

LEVEL 1 - OVERALL - MECHANICAL Greenhouse Homes Steam Utility

3001 GREEN BAY RD, NORTH CHICAGO, IL 60064

556-25-102

09/26/2025 AJA PHD

23022.019

100% CONSTRUCTION

DOCUMENTS

1. MECHANICAL SYMBOLS AND ABBREVIATIONS SHEET GENERAL NOTES APPLY TO ALL SHEETS.

2. ON DEMOLITION PLANS; EXISTING MECHANICAL SYSTEMS TO BE REMOVED ARE SHOWN HATCHED AND/OR

DASHED, EXISTING MECHANICAL SYSTEMS TO REMAIN ARE SHOWN LIGHT LINE WEIGHT. ON ALL OTHER

PLANS, NEW MECHANICAL SYSTEMS ARE INDICATED WITH HEAVY LINE WEIGHTS.

3. UNLESS NOTED OTHERWISE, DETAILS SHOWN WITHIN THESE DOCUMENTS ARE APPLICABLE FOR ALL

PIPING, EQUIPMENT AND DUCTWORK INSTALLATIONS WHETHER OR NOT SPECIFICALLY NOTED.

4. THE OWNER AND ENGINEER ARE NOT RESPONSIBLE FOR THE CONTRACTOR'S SAFETY PRECAUTIONS OR FOR THE MEANS, METHODS, TECHNIQUES, CONSTRUCTION SEQUENCES, OR PROCEDURES REQUIRED TO

PERFORM THIS WORK.

5. HEATING WATER SYSTEM SHALL CONTAIN 30% PROPYLENE GLYCOL. TEST SYSTEM PRIOR TO COMPLETION

OF WORK TO ENSURE SYSTEM CONTAINS CORRECT PERCENTAGE OF PROPYLENE GLYCOL.

SHEET NOTES:

1. SEE CIVIL PLANS FOR FOR CONTINUATION OF STEAM AND CONDENSATE PIPING THAT CONNECTS TO MAIN DISTRIBUTION LOOP. PIPING IN OUTLINED REGION IS LOCATED BELOW GRADE PRIOR TO ENTERING GARAGE

SPACE 125 BY RISING UP THROUGH GARAGE FLOOR.

2. PLATE AND FRAME HEAT EXCHANGER SHALL BE INSTALLED BY CONTRACTOR NO LESS THAN 3'-0" ABOVE FINISHED FLOOR TO ALLOW FOR CONDENSATE TO DRAIN INTO PUMP TRAP. CONNECT 1-1/2" EXISTING

GLYCOL HEATING WATER SUPPLY AND RETURN PIPING TO EACH NEW HEAT EXCHANGER.

3. CAP EXISTING NATURAL GAS PIPING SERVING EXISTING EQUIPMENT REMOVED DURING DEMOLITION WITHIN

THREE PIPE DIAMETERS OF MAIN.

4. EXISTING CONDENSATE DRAIN PIPING SHALL CONTAIN ATMOSPHERICALLY DRAINED CONDENSATE FROM HUMIDIFIER SYSTEM LOCATED IN ATTIC. SEE SHEET B201-MH202 FOR MORE INFORMATION ON CONDENSATE

DRAIN CONNECTION TO NEW HUMIDIFIER SYSTEM.

5. OVERALL CONDENSATE PUMP SKID SHOWN BY OUTLINE ON DRAWINGS. REFER TO CONDENSATE PUMP

SCHEDULE ON SHEET MH600 FOR MORE INFORMATION.

6. 4" V FROM CONDENSATE PUMP TRAP IN SKID. VENT SHALL PENETRATE THROUGH EXTERIOR WALL AT A MINIMUM OF 8'-0" AFF AND TERMINATE HORIZONTALLY SO AS NOT TO DISCHARGE DIRECTLY ONTO VA STAFF

AND/OR PATIENTS POTENTIALLY IN THE AREA OR UNDERNEATH THE ROOFLINE.

7. INSTALL DOUBLE BLOCK AND BLEED VALVES IN VERTICAL PIPING AT ACCESSIBLE HEIGHT FOR VA STAFF. SEE DETAIL #4 ON SHEET MH500 FOR MORE INFORMATION ON DOUBLE BLOCK AND BLEED ASSEMBLY.

GENERAL NOTES:

N

5 5 10 15 20

1/8" = 1'-0"

FEETSCALE

1/8" = 1'-0"

FIRST LEVEL - OVERALL - MECHANICAL

1/4" = 1'-0"

FIRST LEVEL - ENLARGED PLAN - GARAGE/MECH/ELEC ROOM - MECHANICAL

N

2 2 4 6 8 10

1/4" = 1'-0"

28x28 SA

28x28 RA

201-H-1

(E)2" G

(E)2" G DN

(E)2" GHWS

(E)2" GHWR

ATTIC CATWALK

1" LPC

1 1/4" LPS

1" LPC

1 1/4" LPS

1 1/4" LPS DN

1" LPC DN

2(E)3/4" CD DN3

10360 Ellison Circle Omaha, NE 68134 Phone:

402.991.5520

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

FULLY SPRINKLERED

Office of Construction and Facilities Management

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

STAMP

321 4 5 6 7 8 9 10 www.specializedeng.com SES Project :

DESIGNER OF RECORDCONSULTANT

U.S. Department of Veterans Affairs

8822 S. Ridgeline Blvd, Ste 310 Highlands Ranch, CO 80129 Phone: 303.730.0434

09/26/2025

A u to d e s k D o c s /2

.0

V

A L o v e ll G re e n h o u s e

S te a m

U ti lit y /5

-1

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E .R

.r v t

/2

/2

:2

:5

A

M

B201-MH202

ATTIC LEVEL - OVERALL -

MECHANICAL

Greenhouse Homes Steam Utility

3001 GREEN BAY RD, NORTH CHICAGO, IL 60064

556-25-102

09/26/2025 AJA PHD

23022.019

100% CONSTRUCTION

DOCUMENTS

1. MECHANICAL SYMBOLS AND ABBREVIATIONS SHEET GENERAL NOTES APPLY TO ALL SHEETS.

2. ON DEMOLITION PLANS; EXISTING MECHANICAL SYSTEMS TO BE REMOVED ARE SHOWN HATCHED AND/OR

DASHED, EXISTING MECHANICAL SYSTEMS TO REMAIN ARE SHOWN LIGHT LINE WEIGHT. ON ALL OTHER

PLANS, NEW MECHANICAL SYSTEMS ARE INDICATED WITH HEAVY LINE WEIGHTS.

3. UNLESS NOTED OTHERWISE, DETAILS SHOWN WITHIN THESE DOCUMENTS ARE APPLICABLE FOR ALL

PIPING, EQUIPMENT AND DUCTWORK INSTALLATIONS WHETHER OR NOT SPECIFICALLY NOTED.

4. THE OWNER AND ENGINEER ARE NOT RESPONSIBLE FOR THE CONTRACTOR'S SAFETY PRECAUTIONS OR FOR THE MEANS, METHODS, TECHNIQUES, CONSTRUCTION SEQUENCES, OR PROCEDURES REQUIRED TO

PERFORM THIS WORK.

5. HEATING WATER SYSTEM SHALL CONTAIN 30% PROPYLENE GLYCOL. TEST SYSTEM PRIOR TO COMPLETION

OF WORK TO ENSURE SYSTEM CONTAINS CORRECT PERCENTAGE OF PROPYLENE GLYCOL.

SHEET NOTES:

1. COORDINATE INSTALLATION OF STEAM AND CONDENSATE PIPING WITH EXISTING ELEMENTS IN ATTIC.

EXISTING CONDITIONS INCLUDE, BUT ARE NOT LIMITED TO, EXISTING DUCTWORK, PIPING, CONDUIT, LOW VOLTAGE WIRING, ETC. LOW PRESSURE CONDENSATE BACK TO MAIN CONDENSATE RECEIVER AND PUMP IS

PRESSURIZED CONDENSATE FROM UPSTREAM OF CONTROL VALVE TO HUMIDIFIER.

2. CONDENSATE DRAIN PIPING SHALL CONTAIN ATMOSPHERICALLY DRAINED CONDENSATE FROM HUMIDIFIER SYSTEM LOCATED IN ATTIC. SEE SHEET B201-MH201 FOR PIPE CONTINUATION AND TERMINATION.

3. CONNECT NEW HUMIDIFIER SYSTEM TO EXISTING CONDENSATE DRAIN PIPING. REFER TO DETAIL #1 AND

DETAIL #5 ON SHEET MH500 FOR MORE INFORMATION.

GENERAL NOTES:

N

5 5 10 15 20

1/8" = 1'-0"

FEETSCALE

1/8" = 1'-0"

ATTIC LEVEL - OVERALL - MECHANICAL

SCREENED PORCH

ENTRY

IT

STORAGE

PANTRY

SOILED

PAT TLT

114A

PAT TLT

123A

PAT TLT

115A

PAT TLT

110A

OFFICE

ELECTRICAL

OXY

GARAGE

PAT TLT

124A

PAT TLT

118A

PAT TLT

122A

PAT TLT

116A

CORRIDOR

CLEAN

DEN

TOILET

117A

KITCHEN

CORRIDOR

DINING ROOM

ALCOVE

103A

LIVING ROOM

STUDY

CORRIDOR

CORRIDOR

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

PORCH

PAT TLT

105A

PATIENT ROOM 1 BED

PATIENT ROOM 1 BED

COURTYARD PATIO

202-AHU-1202-AHU-1

202-SG-1202-SG-1

28x28 UP

28x28 UP

28x28 RA

28x28 SA

(E)2" G UP

(E)2" G(E)1 1/2" G

(E)1" G

(E)3/4" DCW UP

(E)1 1/2" LPS

B202-MD101

(E)CD UP

202-P-1&2 (E)3/4" G

(E)2" GHWS

(E)2" GHWR

202-B-1202-B-1

202-B-2202-B-2

(E)1" CD

(E)2" G

(E)2" G UP(E)3/4" G

(E)2" GHWR UP

(E)2" GHWS UP

10360 Ellison Circle Omaha, NE 68134 Phone:

402.991.5520

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

FULLY SPRINKLERED

Office of Construction and Facilities Management

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

STAMP

321 4 5 6 7 8 9 10 www.specializedeng.com SES Project :

DESIGNER OF RECORDCONSULTANT

U.S. Department of Veterans Affairs

8822 S. Ridgeline Blvd, Ste 310 Highlands Ranch, CO 80129 Phone: 303.730.0434

09/26/2025

A u to d e s k D o c s /2

.0

V

A L o v e ll G re e n h o u s e

S te a m

U ti lit y /5

-1

.B

.M

E .R

.r v t

/2

/2

:4

:5

P

M

B202-MD101

LEVEL 1 - OVERALL - MECHANICAL

DEMOLITION

Greenhouse Homes Steam Utility

3001 GREEN BAY RD, NORTH CHICAGO, IL 60064

556-25-102

09/26/2025 AJA PHD

23022.019

100% CONSTRUCTION

DOCUMENTS

1. MECHANICAL SYMBOLS AND ABBREVIATIONS SHEET GENERAL NOTES APPLY TO ALL SHEETS.

2. ON DEMOLITION PLANS; EXISTING MECHANICAL SYSTEMS TO BE REMOVED ARE SHOWN HATCHED AND/OR

DASHED, EXISTING MECHANICAL SYSTEMS TO REMAIN ARE SHOWN LIGHT LINE WEIGHT. ON ALL OTHER

PLANS, NEW MECHANICAL SYSTEMS ARE INDICATED WITH HEAVY LINE WEIGHTS.

3. UNLESS NOTED OTHERWISE, DETAILS SHOWN WITHIN THESE DOCUMENTS ARE APPLICABLE FOR ALL

PIPING, EQUIPMENT AND DUCTWORK INSTALLATIONS WHETHER OR NOT SPECIFICALLY NOTED.

4. THE OWNER AND ENGINEER ARE NOT RESPONSIBLE FOR THE CONTRACTOR'S SAFETY PRECAUTIONS OR FOR THE MEANS, METHODS, TECHNIQUES, CONSTRUCTION SEQUENCES, OR PROCEDURES REQUIRED TO

PERFORM THIS WORK.

5. HEATING WATER SYSTEM SHALL CONTAIN 30% PROPYLENE GLYCOL. TEST SYSTEM PRIOR TO COMPLETION

OF WORK TO ENSURE SYSTEM CONTAINS CORRECT PERCENTAGE OF PROPYLENE GLYCOL.

SHEET NOTES:

1. EXISTING HEATING WATER PIPING PREVIOUSLY CONNECTED TO BOILERS SHALL BE REMOVED BACK TO MAIN

AND CAPPED IN PLACE FOR FUTURE CONNECTION TO NEW HEAT EXCHANGERS.

2. REMOVE EXISTING CONDENSATE DRAIN CONNECTED TO EXISTING BOILERS IN ITS ENTIRETY. PATCH WALL

TO MATCH EXISTING WALL CONSTRUCTION.

3. EXISTING GLYCOL FEED TANK SERVING BUILDING 202 HEATING WATER SYSTEM.

4. EXISTING EXPANSION TANK SERVING BUILDING 202 HEATING WATER SYSTEM.

5. REMOVE EXISTING NATURAL GAS PIPING SERVING EXISTING MECHANICAL EQUIPMENT AND CAP WITHIN

THREE PIPE DIAMETERS OF MAIN.

6. LOW PRESSURE STEAM PIPING ORIGINATING FROM EXISTING GAS FIRED STEAM GENERATOR SHALL BE

REMOVED IN ITS ENTIRETY.

7. REMOVE EXISTING BACKFLOW PREVENTER AND DOMESTIC WATER PIPING WITHIN STORAGE ROOM 108.

REMOVE DOMESTIC COLD WATER PIPING BACK TO NEAREST MAIN AND CAP WITHIN THREE PIPE DIAMETERS.

8. REMOVE EXISTING DOMESTIC COLD WATER PIPING THAT SERVES EXISTING GAS FIRED STEAM GENERATOR.

SEE SHEET B202-MD102 FOR CONTINUATION OF DEMOLITION SCOPE.

GENERAL NOTES:

1/8" = 1'-0"

FIRST LEVEL - OVERALL - MECHANICAL DEMOLITION

N

5 5 10 15 20

1/8" = 1'-0"

FEETSCALE

1/4" = 1'-0"

FIRST LEVEL - ENLARGED PLAN - GARAGE/MECH/ELEC ROOM - MECHANICAL DEMOLITION

N

2 2 4 6 8 10

1/4" = 1'-0"

28x28 SA

28x28 RA

ATTIC CATWALK

(E)2" G DN

(E)2" G DN

(E)1 1/2" LPS

(E)3/4" DCW DN

(E)3/4" DCW DN

(E)1 1/2" LPS DN

(E)2" GHWS

(E)2" GHWR

(E)3/4" DCW

(E)3/4" CD DN

(E)3/4" CD

10360 Ellison Circle Omaha, NE 68134 Phone:

402.991.5520

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

FULLY SPRINKLERED

Office of Construction and Facilities Management

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

STAMP

321 4 5 6 7 8 9 10 www.specializedeng.com SES Project :

DESIGNER OF RECORDCONSULTANT

U.S. Department of Veterans Affairs

8822 S. Ridgeline Blvd, Ste 310 Highlands Ranch, CO 80129 Phone: 303.730.0434

09/26/2025

A u to d e s k D o c s /2

.0

V

A L o v e ll G re e n h o u s e

S te a m

U ti lit y /5

-1

.B

.M

E .R

.r v t

/2

/2

:4

:5

P

M

B202-MD102

ATTIC LEVEL - OVERALL -

MECHANICAL DEMOLITION

Greenhouse Homes Steam Utility

3001 GREEN BAY RD, NORTH CHICAGO, IL 60064

556-25-102

09/26/2025 AJA PHD

23022.019

100% CONSTRUCTION

DOCUMENTS

1. MECHANICAL SYMBOLS AND ABBREVIATIONS SHEET GENERAL NOTES APPLY TO ALL SHEETS.

2. ON DEMOLITION PLANS; EXISTING MECHANICAL SYSTEMS TO BE REMOVED ARE SHOWN HATCHED AND/OR

DASHED, EXISTING MECHANICAL SYSTEMS TO REMAIN ARE SHOWN LIGHT LINE WEIGHT. ON ALL OTHER

PLANS, NEW MECHANICAL SYSTEMS ARE INDICATED WITH HEAVY LINE WEIGHTS.

3. UNLESS NOTED OTHERWISE, DETAILS SHOWN WITHIN THESE DOCUMENTS ARE APPLICABLE FOR ALL

PIPING, EQUIPMENT AND DUCTWORK INSTALLATIONS WHETHER OR NOT SPECIFICALLY NOTED.

4. THE OWNER AND ENGINEER ARE NOT RESPONSIBLE FOR THE CONTRACTOR'S SAFETY PRECAUTIONS OR FOR THE MEANS, METHODS, TECHNIQUES, CONSTRUCTION SEQUENCES, OR PROCEDURES REQUIRED TO

PERFORM THIS WORK.

5. HEATING WATER SYSTEM SHALL CONTAIN 30% PROPYLENE GLYCOL. TEST SYSTEM PRIOR TO COMPLETION

OF WORK TO ENSURE SYSTEM CONTAINS CORRECT PERCENTAGE OF PROPYLENE GLYCOL.

SHEET NOTES:

1. EXISTING HUMIDIFIER 202-H-1 SHALL BE REMOVED IN ITS ENTIRETY. DISCONNECT EXISTING CONDENSATE

DRAIN PIPING FROM HUMIDIFIER AND CAP IN PLACE FOR CONNECTION TO NEW HUMIDIFIER.

2. REMOVE STEAM PIPING IN ITS ENTIRETY CONNECTED TO EXISTING STEAM GENERATOR SHOWN ON LEVEL 1

DEMO PLANS.

3. EXISTING CONDENSATE DRAIN PIPING IS EXISTING TO REMAIN FOR CONNECTION TO NEW HUMIDIFIER.

4. DOMESTIC COLD WATER PIPING…