McClellan B88 Boiler Replacement Drawing Set Construction_Draft.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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

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COVER SHEET

PFS TM G-001

N

U.S. Department of Veterans Affairs

Project Name: BUILDING 88 BOILER & DOMESTIC WATER HEATER REPLACEMENT

BUILDING 88

Revisions: Date:

DRAFT

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

N/A

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GENERAL NOTES

Checker Author G-002

DRAWING INDEX

G-001 COVER SHEET

G-002 GENERAL NOTES

G-003 NOTES, ABBREVIATIONS, SYMBOLS

MD-101 LEVEL 0 - MECHANICAL DEMOLITION PLAN

MH-101 LEVEL 0 - MECHANICAL PLAN

MH-102 LEVEL 0 - MECHANICAL PLAN VIEWS

MI-201 MECHANICAL SCHEDULES

MI-401 MECHANICAL CONTROLS

PD-101 LEVEL 0 - PLUMBING DEMOLITION PLAN

PQ-101 LEVEL 0 - PLUMBING PLAN

PQ-102 LEVEL 0 - PLUMBING PLAN VIEWS

PI-201 PLUMBING SCHEDULES

PI-401 PLUMBING CONTROLS

E-000 ELECTRICAL - SYMBOLS, NOTES, AND ABBREVIATIONS

ED-010 ELECTRICAL - BASEMENT (LEVEL 0) SELECTIVE REMOVALS PLAN

ED-100 ELECTRICAL - SELECTIVE REMOVALS ONE-LINE AND PANEL SCHEDULE

E-010 ELECTRICAL - NEW BASEMENT (LEVEL 0) WORK PLAN

E-100 ELECTRICAL - NEW WORK PARTIAL ONE-LINE AND PANEL SCHEDULE

SCOPE OF WORK

THIS PROJECT ENCOMPASSES THE DECOMMISSIONING, REMOVAL, AND REPLACEMENT OF THE HEATING HOT WATER AND DOMESTIC WATER HEATING INFRASTRUCTURE AT THE MCCLELLAN VA CLINIC. THE SCOPE INCLUDES REPLACING THREE (3) EXISTING HEATING HOT WATER BOILERS WITH TWO (2) NEW 1,000 MBH DUAL-FUEL HIGH-EFFICIENCY BOILERS; AND REPLACING TWO (2) EXISTING DOMESTIC WATER HEATERS WITH TWO (2) NEW 120 MBH DUAL-FUEL HIGH-

EFFICIENCY UNITS.

THE CONTRACTOR SHALL PROVIDE ALL LABOR, MATERIALS, EQUIPMENT, AND ENGINEERING SERVICES NECESSARY TO DELIVER A FULLY OPERATIONAL, INTEGRATED, COMMISSIONED, AND CODE-COMPLIANT HYDRONIC AND DOMESTIC HOT WATER PLANT. ALL WORK MUST COMPLY WITH APPLICABLE VA DESIGN STANDARDS, LOCAL CODES, AND ENVIRONMENTAL REGULATIONS.

ARCHITECTURAL & STRUCTURAL SCOPE:

THE CONTRACTOR SHALL PROVIDE ALL LABOR, MATERIALS, AND EQUIPMENT TO PERFORM ARCHITECTURAL MODIFICATIONS AND STRUCTURAL ENHANCEMENTS NECESSARY TO SUPPORT THE NEW MECHANICAL AND PLUMBING

EQUIPMENT. THIS INCLUDES, BUT IS NOT LIMITED TO, THE FOLLOWING:

• HOUSEKEEPING AND EQUIPMENT PADS: ENGINEERING REVIEW, MODIFICATION OF EXISTING CONCRETE HOUSEKEEPING PADS, OR INSTALLATION OF NEW REINFORCED CONCRETE EQUIPMENT PADS AS NECESSARY TO ACCOMMODATE THE FOOTPRINTS AND OPERATING WEIGHTS OF THE NEW BOILERS, WATER HEATERS, AND PUMPING PACKAGES.

• BUILDING ENVELOPE MODIFICATIONS: PERFORM ALL STRUCTURAL AND WEATHERPROOFING MODIFICATIONS TO THE BUILDING ENVELOPE (INCLUDING BUT NOT LIMITED TO ROOF PENETRATIONS, EXTERIOR WALLS, LOUVERS, AND STRUCTURAL FRAMING) REQUIRED TO ROUTE NEW INTAKE/FLUE PIPING OR TRANSPORT HEAVY EQUIPMENT INTO THE FACILITY. ALL EXTERIOR PENETRATIONS MUST BE COMPLETELY SEALED, FLASHED, AND WARRANTIED

TO MAINTAIN WATERTIGHT INTEGRITY.

• RIGGING AND LOGISTICS: THE GC SHALL SUBMIT A COMPREHENSIVE RIGGING AND LOGISTICS PLAN TO THE COR FOR REVIEW AND APPROVAL PRIOR TO THE START OF CONSTRUCTION. THE PLAN SHALL DETAIL DELIVERY SCHEDULES AND STAGING AREAS, UTILITY SHUTDOWN COORDINATION SEQUENCE, AND SEQUENCE FOR REMOVAL OF EXISTING EQUIPMENT AND INSTALLATION OF NEW EQUIPMENT.

PLUMBING SCOPE:

THE CONTRACTOR SHALL PROVIDE ALL LABOR, MATERIALS, AND EQUIPMENT TO REPLACE THE EXISTING DOMESTIC WATER HEATERS AND DELIVER COMPLETE FUEL AND PLUMBING SYSTEM UPGRADES. THIS INCLUDES, BUT IS NOT

LIMITED TO:

• DOMESTIC WATER HEATERS (DWH): DECOMMISSION AND REMOVE TWO (2) EXISTING 120 MBH DOMESTIC WATER HEATERS. FURNISH AND INSTALL TWO (2) NEW 120 MBH NATURAL GAS HIGH-EFFICIENCY CONDENSING-TYPE

DOMESTIC WATER HEATERS.

• ENVIRONMENTAL COMPLIANCE: WATER HEATERS MUST COMPLY STRICTLY WITH SACRAMENTO METROPOLITAN AIR QUALITY MANAGEMENT DISTRICT (SMAQMD) RULE 414, ACHIEVING ULTRA-LOW NOX EMISSIONS.

• CONTRACTOR TO PROVIDE EQUIPMENT SUBMITTALS AND SHOP DRAWINGS OF THE LAYOUT OF THE EQUIPMENT.

• PLUMBING APPURTENANCES: PROVIDE A COMPLETELY RENEWED DOMESTIC HOT WATER ANCILLARY LOOP, INCLUDING BUT NOT LIMITED TO A NEW DOMESTIC HOT WATER RECIRCULATING PUMP, A DIGITAL MASTER MIXING/TEMPERING VALVE STATION, AN EXPANSION TANK, AND A CENTRAL WATER SOFTENING SYSTEM TAILORED TO SYSTEM CAPACITY. CONTRACTOR TO PROVIDE EQUIPMENT SUBMITTALS AND SHOP DRAWINGS OF THE

LAYOUT OF THE EQUIPMENT.

• NATURAL GAS PIPING: MODIFY AND EXTEND THE EXISTING NATURAL GAS PIPING NETWORK TO SUPPORT THE THERMAL DEMANDS OF THE NEW BOILER AND WATER HEATER CONFIGURATIONS. PROVIDE CODE-COMPLIANT REGULATORS, SHUT-OFF VALVES, AND SEDIMENT TRAPS AT EACH UNIT CONNECTION. CONTRACTOR TO PROVIDE EQUIPMENT SUBMITTALS AND SHOP DRAWINGS OF THE LAYOUT OF THE EQUIPMENT.

• INTAKES AND FLUES: PROVIDE ALL REQUIRED INTAKE AND FLUE VENT PIPING TO SUPPORT THE INSTALLATION OF THE NEW HEATING HOT WATER BOILERS AND DOMESTIC HOT WATER HEATERS. UTILIZE AL29-4C STAINLESS STEEL OR MANUFACTURER-APPROVED PVC/CPVC CONDENSING VENT MATERIALS, TERMINATING PENETRATIONS THROUGH THE BUILDING ENVELOPE WITH CODE-COMPLIANT CAPS AND SCREENS.

MECHANICAL SCOPE:

THE CONTRACTOR SHALL PROVIDE ALL LABOR, MATERIALS, AND EQUIPMENT TO REPLACE THE CENTRAL HEATING HOT WATER GENERATION PLANT. THIS INCLUDES, BUT IS NOT LIMITED TO:

• HEATING HOT WATER BOILERS: DECOMMISSION, DISCONNECT, AND SAFELY REMOVE THREE (3) EXISTING HEATING HOT WATER BOILERS AND THEIR ASSOCIATED TRIM. FURNISH AND INSTALL TWO (2) NEW 1,000 MBH HIGH-

EFFICIENCY, (NATURAL GAS) COMMERCIAL CONDENSING HEATING HOT WATER BOILERS.

• ENVIRONMENTAL COMPLIANCE: BOILERS MUST COMPLY STRICTLY WITH SACRAMENTO METROPOLITAN AIR QUALITY MANAGEMENT DISTRICT (SMAQMD) RULE 411, ACHIEVING ULTRA-LOW NOX EMISSIONS.

• CONTRACTOR TO PROVIDE EQUIPMENT SUBMITTALS AND SHOP DRAWINGS OF THE LAYOUT OF THE EQUIPMENT.

• PRIMARY HYDRONIC LOOP: FURNISH AND INSTALL ALL APPURTENANCES REQUIRED TO ESTABLISH A HIGH-EFFICIENCY PRIMARY HYDRONIC LOOP. THIS INCLUDES NEW DEDICATED PRIMARY BOILER LOOP CIRCULATING PUMPS, AN APPROPRIATELY SIZED DIAPHRAGM-TYPE HYDRONIC EXPANSION TANK OPTIMIZED FOR INDOOR UTILITY ENVIRONMENTS, AIR/DIRT SEPARATORS, CHEMICAL FEED SYSTEMS, AND CODE-MANDATED SAFETY RELIEF VALVES.

CONTRACTOR TO PROVIDE EQUIPMENT SUBMITTALS AND SHOP DRAWINGS OF THE LAYOUT OF THE EQUIPMENT.

• SECONDARY HYDRONIC LOOP: FURNISH AND INSTALL TWO (2) NEW SECONDARY HEATING HOT WATER PUMPS (CONFIGURED AS A LEAD/LAG SYSTEM) AND ALL NECESSARY APPURTENANCES TO CREATE A COMPLETE SECONDARY LOOP SERVED BY THE PRIMARY LOOP. SECONDARY PUMPS SHALL BE EQUIPPED WITH VARIABLE FREQUENCY DRIVES (VFDS) AND ASSOCIATED DYNAMIC BALANCING VALVES TO MAINTAIN APPROPRIATE SYSTEM FLOW ACROSS THE FACILITY. CONTRACTOR TO PROVIDE EQUIPMENT SUBMITTALS AND SHOP DRAWINGS OF THE LAYOUT OF THE EQUIPMENT.

• RIGGING & LOGISTICS: THE CONTRACTOR SHALL SUBMIT A COMPREHENSIVE RIGGING AND LOGISTICS PLAN TO THE COR FOR REVIEW AND APPROVAL PRIOR TO THE START OF CONSTRUCTION. THE PLAN MUST DETAIL CRANE PLACEMENTS, STRUCTURAL PATH LOADING EVALUATIONS, DELIVERY SCHEDULES, AND UTILITY SHUTDOWN COORDINATION.

• PRESSURE TESTING & HYDRONIC PREP: ALL NEW PRIMARY AND SECONDARY HYDRONIC PIPING LOOPS MUST BE HYDROSTATICALLY PRESSURE TESTED AT 1.5 TIMES THE SYSTEM DESIGN PRESSURE FOR A MINIMUM CONTINUOUS DURATION OF 24 HOURS PRIOR TO THE APPLICATION OF PIPE INSULATION. SYSTEM FLUSHING, CHEMICAL CLEANING, AND WATER TREATMENT PASSIVATION MUST BE PERFORMED BEFORE EQUIPMENT STARTUP.

CONTROLS & AUTOMATION SCOPE:

THE CONTRACTOR SHALL PROVIDE ALL LABOR, MATERIALS, AND EQUIPMENT TO FULLY AUTOMATE, MONITOR, AND INTEGRATE THE NEW MECHANICAL AND PLUMBING PLANT INFRASTRUCTURE.

• BAS INTEGRATION: INTEGRATE THE TWO (2) NEW 1,000 MBH HEATING BOILERS, TWO (2) NEW DOMESTIC WATER HEATERS (DWH), PRIMARY/SECONDARY PUMPS, VFDS, WATER SOFTENING STATUS, AND PROPANE AUTOMATIC

CHANGEOVER VALVES INTO THE EXISTING CAMPUS BUILDING AUTOMATION SYSTEM (BAS).

• NOTE: THE EXISTING CAMPUS BAS PLATFORM AND VENDOR ARE CURRENTLY UNKNOWN; THE CONTRACTOR IS RESPONSIBLE FOR FIELD-VERIFYING THE CURRENT SYSTEM ARCHITECTURE AND PROVIDING ALL

NECESSARY GATEWAYS, CONTROLLERS, AND SOFTWARE DRIVERS FOR FULL COMPATIBILITY.

• SEQUENCE OF OPERATIONS: PROGRAM AND FULLY VALIDATE COMPREHENSIVE OPERATIONAL SEQUENCES. THIS INCLUDES AUTOMATIC LEAD/LAG ROTATION, OUTDOOR AIR TEMPERATURE RESET CURVES, PRIMARY/SECONDARY VARIABLE FLOW CONTROL.

ELECTRICAL & COMMUNICATIONS SCOPE:

THE CONTRACTOR SHALL PROVIDE ALL LABOR, MATERIALS, AND EQUIPMENT TO PERFORM ELECTRICAL AND DATA COMMUNICATION MODIFICATIONS NECESSARY TO SUPPORT THE NEW EQUIPMENT PLANT.

• POWER DISTRIBUTION & SAFETY DISCONNECTS: SAFELY DISCONNECT ELECTRICAL SERVICES FROM THE THREE (3) EXISTING BOILERS, TWO (2) EXISTING WATER HEATERS, AND ALL EXISTING PRIMARY/SECONDARY PUMPS SCHEDULED FOR REPLACEMENT. PROVIDE AND INSTALL NEW CIRCUIT BREAKERS, CONDUIT, WIRE, LOCAL SAFETY DISCONNECT SWITCHES, AND VARIABLE FREQUENCY DRIVES (VFDS) TO SERVE THE NEW BOILERS, WATER

HEATERS, AND PUMPS.

• ELECTRICAL COMPATIBILITY CHECK: THE CONTRACTOR SHALL VERIFY THAT ALL EXISTING CIRCUIT BREAKERS AND ELECTRICAL DISTRIBUTION CONDUCTORS SCHEDULED TO REMAIN ARE FULLY COMPATIBLE WITH THE NEW EQUIPMENT’S NAMEPLATE MINIMUM CIRCUIT AMPACITY (MCA) AND MAXIMUM OVERCURRENT PROTECTION (MOP) RATINGS.

• COMMUNICATIONS & NETWORK SCOPE: INSTALL ALL NECESSARY LOW-VOLTAGE CONDUIT, SHIELDED CABLING, AND NETWORK COMMUNICATION MODULES (E.G., BACNET MS/TP OR MODBUS) TO LINK THE INTERNAL MICROPROCESSOR CONTROL BOARDS OF THE BOILERS AND WATER HEATERS DIRECTLY TO THE CENTRAL BAS NETWORK CONTROLLER.

TESTING, ADJUSTING, AND BALANCING (TAB):

• SYSTEM REBALANCING: PERFORM A COMPREHENSIVE WATER-SIDE SYSTEM BALANCE OF THE NEW PRIMARY AND SECONDARY HEATING HOT WATER LOOPS. BALANCE BOTH THE PRIMARY BOILER PUMPS AND SECONDARY DISTRIBUTION PUMPS TO DESIGN FLOW RATES AND HEAD PRESSURES. FINAL CERTIFIED TAB REPORTS MUST BE SUBMITTED TO THE COR FOR APPROVAL.

COMMISSIONING SCOPE:

THE CONTRACTOR SHALL PROVIDE COMPREHENSIVE, INDEPENDENT COMMISSIONING SERVICES FOR ALL NEW SYSTEMS INSTALLED UNDER THIS PROJECT. A DETAILED COMMISSIONING PLAN MUST BE SUBMITTED TO THE COR FOR

REVIEW AND APPROVAL PRIOR TO FUNCTIONAL TESTING.

• HVAC COMMISSIONING: EXECUTE COMPLETE COMPONENT, EQUIPMENT, AND SEQUENCE VALIDATION FOR THE CENTRAL HYDRONIC HEATING PLANT. COMMISSIONING SHALL VERIFY BOILER COMBUSTION EFFICIENCIES (ENSURING SMAQMD RULE 411 COMPLIANCE), PRIMARY/SECONDARY PUMP SEQUENCES, OUTDOOR AIR RESET LOGIC, AND VFD MODULATION.

• PLUMBING COMMISSIONING: EXECUTE COMPLETE FUNCTIONAL TESTING FOR THE DOMESTIC HOT WATER (DHW) PLANT. COMMISSIONING SHALL VERIFY CONDENSING WATER HEATER EFFICIENCIES, DOMESTIC HOT WATER RECIRCULATING PUMP OPERATIONS, THE DOMESTIC WATER SOFTENING SYSTEM REGENERATION CYCLES, AUTOMATIC PROPANE FUEL CHANGEOVER, AND THE DIGITAL MASTER MIXING VALVE STATION TO ENSURE STEADY, SAFE DELIVERY TEMPERATURES TO THE CLINIC.

• INTEGRATED CONTROLS VERIFICATION: PERFORM END-TO-END TESTING OF ALL DATA POINTS INTEGRATED INTO THE BAS. VERIFY THAT ALL ALARMS, SYSTEM STATUSES, RUNTIME TOTALS, AND TREND CONFIGURATIONS FOR BOTH THE HVAC AND PLUMBING EQUIPMENT REPORT ACCURATELY TO THE CENTRAL WORKSTATION.

GENERAL NOTES

1. SURVEY: BEFORE ANY WORK IS STARTED, THE CONTRACTOR SHALL MAKE A THOROUGH SURVEY WITH THE COR, OF AREAS OF BUILDINGS (INSIDE AND OUTSIDE) IN WHICH ALTERATIONS OCCUR AND AREAS WHICH ARE ANTICIPATED ROUTES OF ACCESS, AND FURNISH A REPORT, SIGNED BY BOTH, TO THE CONTRACTING OFFICER. THIS REPORT SHALL LIST BY ROOMS AND SPACES, ETC:

A. EXISTING CONDITION AND TYPES OF RESILIENT FLOORING, DOORS, WINDOWS, WALLS AND

OTHER SURFACES NOT REQUIRED TO BE ALTERED THROUGHOUT AFFECTED AREAS OF

BUILDINGS.

B. EXISTENCE AND CONDITIONS OF ITEMS SUCH AS PLUMBING FIXTURES AND ACCESSORIES,

ELECTRICAL FIXTURES, EQUIPMENT, VENETIAN BLINDS, SHADES, ETC., REQUIRED BY

DRAWINGS TO BE EITHER REUSED OR RELOCATED, OR BOTH.

C. SHALL NOTE ANY DISCREPANCIES BETWEEN DRAWINGS AND EXISTING CONDITIONS AT SITE.

D. SHALL DESIGNATE AREAS FOR WORKING SPACE, MATERIALS STORAGE AND ROUTES OF

ACCESS TO AREAS WITHIN BUILDINGS WHERE ALTERATIONS OCCUR AND WHICH HAVE BEEN

AGREED UPON BY CONTRACTOR AND COR.

E. SHALL SUBMIT PRE-CONSTRUCTION SURVEY REPORT PRIOR TO CONDUCTING ANY WORK.

F. SEE SPEC SECTION 01 00 00 - 1.7 FOR MORE INFO.

2. CARE SHALL BE TAKEN BY THE CONTRACTOR TO PROTECT EXISTING SYSTEMS AND SURFACES INDICATED TO REMAIN. ALL DAMAGE RESULTING FROM THE CONTRACTOR'S OPERATIONS SHALL BE REPAIRED OR REPLACED AS APPROVED BY THE CONTRACTING OFFICER AT NO ADDITIONAL COST

TO THE GOVERNMENT.

3. THE CONTRACTOR SHALL PROVIDE BARRICADES AT ALL WORK AREAS TO PREVENT PERSONNEL

FROM ENTERING AREAS OF WORK, UNLESS OTHERWISE NOTED

4. AT THE END OF EACH DAY, CONTRACTOR SHALL CLEAN AND REMOVE WASTE FROM THE WORK

AREA(S). THERE WILL BE NO EXCEPTION TO THE DAILY CLEAN UP REQUIREMENT. STORING

CONSTRUCTION WASTE NEAR A STORAGE TRAILER IS NOT PERMITTED.

5. DIMENSIONS OF ALL REPLACEMENT MATERIALS SHOULD REFER TO THE EXISTING MATERIALS AND

TRY TO MATCH AS CLOSE AS POSSIBLE, UNLESS OTHERWISE NOTED.

6. ROOM NUMBERS INDICATED ON PLANS ARE FOR REFERENCE AND COORDINATION OF THESE

DOCUMENTS ONLY.

7. PRODUCTS IDENTIFIED AS BASIS OF DESIGN (BOD) ARE NOT REQUIRED. PRODUCTS MAY BE INCLUDED BUT ARE NOT LIMITED TO THE BOD, AN APPROVED EQUAL PRODUCT WILL BE PERMITTED.

8. WORK SHALL COMPLY WITH ALL APPLICABLE FEDERAL, STATE AND LOCAL CODES, ORDINANCES

AND REGULATIONS.

9. CONTRACTOR IS RESPONSIBLE FOR JOB SAFETY, CONSTRUCTION PROCEDURES, COORDINATION OF

THEIR WORK WITH OTHER TRADES AND ON-SITE SECURITY.

10. MINOR DETAILS OR INCIDENTAL ITEMS NOT SHOWN OR SPECIFIED, BUT NECESSARY FOR A PROPER

AND COMPLETE INSTALLATION SHALL BE INCLUDED AS REQUIRED.

11. CONTRACTOR SHALL MAINTAIN EGRESS PATHS FOR BUILDING OCCUPANTS AT ALL TIMES.

12. THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL PERMITS WHICH ARE REQUIRED

FOR THE SATISFACTORY COMPLETION OF WORK.

13. THE CONTRACTOR SHALL COORDINATE THE TIMING AND SEQUENCE OF WORK WITH THE

CONTRACTING OFFICER, GOVERNMENT EMPLOYEES AND BUILDING TENANTS.

14. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE REMOVAL AND DISPOSAL AND/OR RECYCLING

OF ALL DEMOLITION MATERIALS UNLESS NOTED TO SALVAGE AND TURN OVER TO THE

GOVERNMENT FOR REUSE OR RELOCATION.

15. EXECUTE WORK IN A CAREFUL AND ORDERLY MANNER WITH LEAST POSSIBLE DISTURBANCE TO THE

PUBLIC AND BUILDING OCCUPANTS.

16. WHERE ALTERATIONS OCCUR, OR NEW AND OLD WORK JOIN, CUT, REMOVE, PATCH, REPAIR OR

REFINISH TO ADJACENT SURFACES AND LEAVE IN AS GOOD CONDITION AS EXISTED PRIOR TO

COMMENCING WORK.

17. HOT WORK PERMITS (WELDING, BRAZING, SOLDERING, TORCH CUTTING, ETC.) SHALL BE OBTAINED

DAILY THROUGH THE COR.

18. ALL WORK TO BE DONE OFF HOUR SHALL BE COORDINATE AND SCHEDULE WITH THE COR,

GOVERNMENT EMPLOYEES AND BUILDING TENANTS.

19. PROVIDE HANGERS, CLAMPS, OFFSETS, EXPANSION JOINTS, ANCHORS AND GUIDES AS NECESSARY TO PREVENT STRESS ON PIPING. ENSURE COMPLIANCE WITH VA SEISMIC DESIGN GUIDELINES IN ACCORDANCE WITH HANDBOOK H-18-8, VA SEISMIC DESIGN REQUIREMENTS, AND SPECIFICATIONS.

20. DRAWINGS ARE DIAGRAMMATIC. CONTRACTOR IS RESPONSIBLE TO DETERMINE EXACT LOCATIONS OF SYSTEMS IN THE FIELD AND SUBMIT SURVEY REPORT IN ACCORDANCE WITH SPECIFICATIONS.

CONTRACTOR SHALL PROVIDE NECESSARY OFFSETS OR RE-ROUTE TO AVOID CONFLICTING WITH

EXISTING CONDITIONS. .

APPLICABLE CODES

CALIFORNIA BUILDING STANDARDS CODE (TITLE 24)

• 2025 CALIFORNIA BUILDING CODE (CBC) / TITLE 24, PART 2 (EFFECTIVE DATE: JANUARY 1, 2026)

• 2025 CALIFORNIA ELECTRICAL CODE (CEC) / TITLE 24, PART 3 (EFFECTIVE DATE: JANUARY 1, 2026)

• 2025 CALIFORNIA MECHANICAL CODE (CMC) / TITLE 24, PART 4 (EFFECTIVE DATE: JANUARY 1, 2026)

• 2025 CALIFORNIA PLUMBING CODE (CPC) / TITLE 24, PART 5 (EFFECTIVE DATE: JANUARY 1, 2026)

• 2025 CALIFORNIA ENERGY CODE / TITLE 24, PART 6 (EFFECTIVE DATE: JANUARY 1, 2026)

REGIONAL ENVIRONMENTAL & NATIONAL FUEL/FIRE CODES

• SMAQMD RULE 411 (SACRAMENTO METROPOLITAN AIR QUALITY MANAGEMENT DISTRICT) (CURRENT ACTIVE/ENFORCED)

• NFPA 54 / ANSI Z223.1: NATIONAL FUEL GAS CODE (2024 EDITION)

• NFPA 13: STANDARD FOR THE INSTALLATION OF SPRINKLER SYSTEMS (2025 EDITION)

• ANSI/ASHRAE STANDARD 135: BACNET (2024 EDITION)

DEPARTMENT OF VETERANS AFFAIRS (VA) SPECIFICATIONS & MANUALS

• VA MASTER SPECIFICATIONS (PG-18-1) (CURRENT ACTIVE REVISIONS)

• VA HVAC DESIGN MANUAL (PG-18-10) (NOVEMBER 1, 2017 EDITION, REVISED MARCH 1, 2024)

• VA STEAM, HEATING HOT WATER, AND OUTSIDE DISTRIBUTION SYSTEMS DESIGN MANUAL (MAY 1, 2024 EDITION)

• VA PLUMBING DESIGN MANUAL (PG-18-10) (JUNE 1, 2022 EDITION, REVISED FEBRUARY 1, 2024)

• VA ELECTRICAL DESIGN MANUAL (PG-18-10) (MARCH 1, 2025 EDITION)

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

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NOTES, ABBREVIATIONS, SYMBOLS

Checker Author G-003

MECHANICAL GENERAL NOTES

1. ALL PIPING IN FINISHED ROOMS OR SPACES SHALL BE CONCEALED IN A FURRED CHASE OR ABOVE HARD

SUSPENDED CEILING, OR ACOUSTICAL CEILING.

2. ACCESS PANELS IN HARD SUSPENDED CEILINGS ARE REQUIRED FOR ALL VALVES, TRAPS, DAMPERS, CLEANOUTS, CONTROLS, ETC. ACCESS PANELS SHALL BE FURNISHED AND INSTALLED UNDER THE ARCHITECTURAL SPECIFICATIONS. COORDINATE LOCATION WITH MECHANICAL INSTALLATION AND

DEMONSTRATE ACCESS TO EQUIPMENT SERVED.

3. FOR TYPICAL PIPING CONNECTIONS TO EQUIPMENT, SEE STANDARD EQUIPMENT DETAILS.

PLUMBING GENERAL NOTES

1. COORDINATE INSTALLTION OF ALL PIPING WITH OTHER CONTRACTORS. NOTIFY CONSTRUCTION MANAGER

OF ANY DEVIATIONS FROM THESE DRAWINGS PRIOR TO FABRICATION AND/OR INSTALLATION.

2. CONTRACTOR TO INSTALL ALL EQUIPMENT AND MATERIALS AS SHOWN ON DWGS. IN ACCORDANCE WITH SPECIFICATIONS, IN THE EVENT OF A CONFLICT BETWEEN DWGS. AND SPECIFICATIONS THE DRAWINGS WILL

GOVERN.

3. CONTRACTOR TO VERIFY ALL PIPE ROUTINGS AND DIMENSIONS BEFORE ORDERING MATERIAL OR DOING

WORK.

4. ALL NEW PIPING IS TO BE FLUSHED AND TESTED IN ACCORDANCE WITH THE SPECIFICATIONS.

5. CONTRACTOR TO INSTALL PIPE SUPPORTS AND MATERIALS IN ACCORDANCE WITH THE SPECIFICATIONS AND

STATE CODES.

A/E ARCHITECT / ENGINEER

AP ACCESS PANEL

AS AIR SEPARATOR

ASHRAE AMERICAN SOCIETY OF HEATING REFRIGERATION AIR

CONDITIONING ENGINEERS

ASME AMERICAN SOCIETY OF MECHANICAL ENGINEERS

B BOILER

BFP BACKFLOW PREVENTER

BFT BOILER PLANT FIRE TUBE

BHP BRAKE HORSEPOWER

BHW HOT WATER HEATING BOILER

BTU BRITISH THERMAL UNIT

BTUH BRITISH THERMAL UNIT PER HOUR

C CENTIGRADE (CELSIUS)

CD-1 CONSTRUCTION DOCUMENTS (SUBMISSION1)

CD-2 CONSTRUCTION DOCUMENTS (SUBMISSION2)

COP CENTER OF PIPE

CV CONSTANT VOLUME

CW COLD WATER (POTABLE)

Db DRY-BULB TEMPERATURE

DCW DOMESTIC COLD WATER

DD-1 DESIGN DEVELOPMENT (SUBMISSION 1)

DD-2 DESIGN DEVELOPMENT (SUBMISSION 2)

DDC DIRECT DIGITAL CONTROLS

DEG DEGREE

DHW DOMESTIC HOT WATER

DHWR DOMESTIC HOT WATER RETURN

DIA DIAMETER

DPA DIFFERENTIAL PRESSURE ASSEMBLY

DPS DIFFERENTIAL PRESSURE SENSOR

EER ENERGY EFFICIENCY RATIO

ENT ENTERING

ET EXPANSION TANK

EWT ENTERING WATER TEMPERATURE

EX EXISTING

F FAHRENHEIT

F&T FLOAT AND THERMOSTATIC

FC FLEXIBLE CONNECTION

FD FLOOR DRAIN

FM FLOW METER

FS FLOW SWITCH

FT FEET

FT WC FEET OF WATER COLUMN

FT-LB FOOT-POUND

GA GAUGE

GAL GALLONS

GPD GALLONS PER DAY

GPH GALLONS PER HOUR

GPM GALLONS PER MINUTE

GPR GAS PRESSURE REGULATOR

HB HOSE BIBB

HOA HAND/OFF/AUTOMATIC

HP HORSEPOWER

HZ HERTZ

I/O INPUT/OUTPUT

ID INSIDE DIAMETER

IN INCHES

IN WC INCH WATER COLUMN

IN WG INCH WATER GAUGE

IN-LB INCH-POUND

MAX MAXIMUM

MBH 1,000 BTUH

MCA MINIMUM BRANCH CIRCUIT AMPACITY

MERV MINIMUM EFFICIENCY REPORTING VALUE

MHP MOTOR HORSEPOWER

MIN MINIMUM

MOV MOTOR OPERATED VALVE

KW KILOWATT

KWH KILOWATT HOUR

LBS/HR POUNDS PER HOUR

LF LINEAR FOOT (FEET)

LVG LEAVING

NA NOT APPLICABLE

NC NOISE CRITERIA

NC NORMALLY CLOSED

NO NORMALLY OPEN

NOM NOMINAL

NTS NOT TO SCALE

OD OUTSIDE DIAMETER

P PUMP

PD PRESSURE DROP

PG PRESSURE GAGE

PSI POUNDS PER SQUARE INCH

PSIA POUNDS PER SQUARE INCH – ABSOLUTE

PSIG POUNDS PER SQUARE INCH – GAGE

PSV PRESSURE SAFETY VALVE

RLA RUN LOAD AMPERE

RPM REVOLUTIONS PER MINUTE

RV RELIEF VALVE

SD-1 SCHEMATIC DESIGN (SUBMISSION1)

SD-2 SCHEMATIC DESIGN (SUBMISSION2)

SI SQUARE INCHES

SP STATIC PRESSURE

SQ FT SQUARE FOOT (FEET)

SS STAINLESS STEEL

TAB TESTING, ADJUSTING, BALANCE

TDS TOTAL DISSOLVED SOLIDS

V VALVE

VFD VARIABLE FREQUENCY DRIVE

VHA VETERANS HEALTH ADMINISTRATION

VI VIBRATION ISOLATOR

VSD VARIABLE SPEED DRIVE

W WATTS

Wb WET-BULB (TEMPERATURE)

WFCV WATER FLOW CONTROL VALVE

WFM WATER FLOWMETER

WFMD WATER FLOW MEASURING DEVICE

WG WATER GAGE

WPD WATER SIDE PRESSURE DROP

YR YEAR

DRAWING SYMBOLS

26-SF-3

DETAIL NUMBER

DRAWING NUMBER WHERE SHOWN

SECTION LETTER

TYPICAL UNIT NO.

BUILDING NO. WHERE EQUIPMENT IS LOCATED.

SUPPLY FAN NO. 3 IN BUILDING NO. 26

EQUIPMENT ABBREVIATION (SUPPLY FAN)

DRAWING NUMBER WHERE DRAWN

H4

H7

A

PIPING SYMBOLS

FLUE VENT

COMBUSTION AIR

FV

CA

EXISTING PIPE TO BE DEMOLISHED

REDUCER OR INCREASER

DIRECTION OF FLOW

SIDE CONNECTION

BOTTOM CONNECTION, 45° OR 90°

TOP CONNECTION, 45° OR 90°

RISE OR DROP IN PIPE

PRESSURE GAGE

THERMOMETER

PIPE UP

PIPE DOWN

GENERAL PIPING SYMBOLS

FLOW METERM

BALL VALVE

CHECK VALVE

BUTTERFLY VALVE

MODULATING CONTROL VALVE

TWO POSITION CONTROL VALVE

THREE-WAY MODULATING CONTROL VALVE

THREE-WAY TWO POSITION CONTROL VALVE

MODULATING CONTROL BUTTERFLY VALVE

VALVE SYMBOLS

ABBREVIATIONS

EXISTING PIPE TO BE DEMOLISHED

CONTROLS SYMBOLS

TT TEMPERATURE TRANSMITTER

TT TEMPERATURE TRANSMITTER, AVERAGING ELEMENT

FT FLOW TRANSMITTER

IT CURRENT TRANSMITTER

PDT PRESSURE DIFFERENTIAL TRANSMITTER

HS HAND SWITCH (HAND-OFF-AUTO SWITCH)

ZC VALVE OR DAMPER POSITION CONTROLLER

PDS PRESSURE DIFFERENTIAL SWITCH

A

TEMPERATURE SENSING ELEMENT FOR

TRANSMITTING TEMPERATURE TO EMCS

(PROVIDE 12 INCHES MINIMUM LENGTH IN

DUCT WHEN SPACE PERMITS.)

SENSOR WITH AVERAGING ELEMENT TO

TRANSMIT TEMPERATURE TO EMCS

MOTOR

STARTER

M

ELECTRIC OPERATED CONTROL DAMPER/OR

VALVE

LTCP LOCAL TEMPERATURE CONTROL PANEL

HVAC HVAC CONTROL PANEL

ECC

INTEGRATE CONTROL POINT ON REMOTE GRAPHICS

WORKSTATION AT ENERGY CONTROL CENTER

TC

TEMPERATURE CONTROLLER. SEE SEQUENCE OF

OPERATION

VSMC VARIABLE SPEED MOTOR CONTROLLER

PC

PRESSURE CONTROLLER. SEE SEQUENCE OF

OPERATION

SC

SPEED CONTROLLER. SEE SEQUENCE OF

OPERATION

FC

FLOW CONTROLLER. SEE SEQUENCE OF

OPERATION

PSH PRESSURE SWITCH HIGH

FSH FLOW SWITCH HIGH

PSL PRESSURE SWITCH LOW

KC TIME CLOCK CONTROLLING EQUIPMENT ON A SCHEDULE

FSL FLOW SWITCH LOW

HOT WATER RETURN

HOT WATER SUPPLYHWS

HWR

DOMESTIC HOT WATERDHW

DOMESTIC COLD WATERDCW

NATURAL GASNG

Revisions: Date:

PIPE COARSE VIEW

PIPE FINE VIEW

EXISTING SWBD "MSB"

EXISTING PNL "BNL1"

EXISTING TELECOM

CABINET

EXISTING COMMUNICATION

CABINET

EXISTING AHU-1

EXISTING CONCRETE

PAD TO REMAIN.

DEMOLISH EXISTING BOILER,

PUMPS, ASSOCIATED PIPING,

AND APPURTENANCES.

DEMOLISH EXISTING BOILERS,

PUMPS, ASSOCIATED PIPING,

AND APPURTENANCES.

H W

S H

W R

H W

S H

W R

2"

HWR

2"

HWS

2"

HWS2"

HWR

2"

HWR

2"

HWS

3/4"

HWS

2"

HWS

2"

HWR

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

C U se rs

\h a u n g \D o c u m e n ts

\M cC le lla n B

B o ile r R e p la c e m e n t_ h a u n g

G H

V P

.r v t

/3

/2

:0

:0

P

M

1/2" = 1'-0"

LEVEL 0 - MECHANICAL DEMOLITION PLAN

Checker Author MD-101

1/2" = 1'-0"

MECHANICAL DEMOLITION

UP

EXISTING 6" EQUIPMENT

PAD. CONTRACTOR TO

MODIFY EQUIPMENT PAD AS

NECESSARY PRIOR TO NEW

EQUIPMENT INSTALLATION.

REFER TO SPECIFICATIONS

FOR MORE REQUIREMENTS.

88-B-1

88-B-2

88-ET-1

88-AS-1

88-HWP-P-1

88-HWP-P-2

88-HWP-S-1

88-HWP-S-2

EXISTING SWBD "MSB"

EXISTING PNL "BNL1"

EXISTING TELECOM

CABINET

EXISTING COMMUNICATION

CABINET

EXISTING AHU-1

CONTRACTOR TO PROVIDE

NEW 6" EQUIPMENT PAD AS

NECESSARY PRIOR TO NEW

EQUIPMENT INSTALLATION.

REFER TO SPECIFICATIONS

FOR MORE REQUIREMENTS.

3"

HWS 3"

HWR

3"

HWS

POT FEEDER

INSTALL PER

MANUFACTURER

REQUIREMENTS

H W

S

H W

R

H W

S

H W

R

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

C U se rs

\h a u n g \D o c u m e n ts

\M cC le lla n B

B o ile r R e p la c e m e n t_ h a u n g

G H

V P

.r v t

/3

/2

:0

:0

P

M

1/2" = 1'-0"

LEVEL 0 - MECHANICAL PLAN

Checker Author MH-101

1/2" = 1'-0"

Level 0 - MECH NEW WORK

Level 1

10' - 0"

BASEMENT

0' - 0"

Lev el 1

10'

- 0"

BASEMENT

0' - 0"

88-B-2 88-B-1

88-HWP-S-188-HWP-S-2

POT FEEDER

88-AS-1

88-ET-1

H W

S

H W

R

H W

S

88-HWP-P-1

88-HWP-P-2

3"

HWR

3"

HWS

Level 1 10' - 0"

BASEMENT

0' - 0"

88-B-188-B-2

3"

HWS

1"

HWS

3"

HWR

3"

HWR

88-ET-1

C A

6"

CA

C A

F V

3"

HWR

H W

R 3

H W

S

H W

S

6"

FV

F V

H W

S

H W

R

3/4"

NG

POT

FEEDER

PROVIDE

BACKDRAFT

DAMPER AT

EACH BOILER

VENT PIPE

POT FEEDER

88-B-188-B-288-HWP-S-1

88-HWP-S-2

88-HWP-P-188-HWP-P-2

3"

⌀ HWR

3"

H W

S

H W

R

H W

S

H W

S

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

C U se rs

\h a u n g \D o c u m e n ts

\M cC le lla n B

B o ile r R e p la c e m e n t_ h a u n g

G H

V P

.r v t

/3

/2

:0

:0

P

M

3/4" = 1'-0"

LEVEL 0 - MECHANICAL PLAN VIEWS

Checker Author MH-102

MECHANICAL NEW WORK ISOMETRIC VIEW 1 Copy 1

3/4" = 1'-0"

MECHANICAL NEW WORK SECTION VIEW Copy 1

MECHANICAL NEW WORK ISOMETRIC VIEW 2 Copy 1

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

N/A

C U se rs

\h a u n g \D o c u m e n ts

\M cC le lla n B

B o ile r R e p la c e m e n t_ h a u n g

G H

V P

.r v t

/3

/2

:0

:0

P

M

MECHANICAL SCHEDULES

Checker Author MI-201

EXPANSION TANK SCHEDULE

MARK TYPE

APPROX SYSTEM

VOLUME

MIN

TEMPERATURE

MAX

TEMPERATURE

INITIAL PRESS.

IN TANK

MAX OPERATING

PRESS.

RELIEF VALVE

PRESS.

PRESS. AT

TANK

MIN VOLUME

TANK

MIN BLADDER

VOLUME

PIPE SIZE

AT TANK

MAKE-UP WATER

FILL SIZE REMARKS

88-ET-1 EXPANSION TANK 60 GAL 40 F 240 F 12 PSI 125 PSI 125 PSI 12 PSI 23 GAL 23 GAL 1 IN.

AIR SEPARATOR SCHEDULE

MARK TYPE SIZE (IN.)

FLOW

(GPM) WPD (FT)

BUILT-IN

STRAINER REQ'D REMARKS

88-AS-1 AIR SEPARATOR 12 100 1.29 N/A

HYDRONIC PUMP SCHEDULE

MARK TYPE FLUID

FLOW

(GPM) HEAD (FT) SP GR MIN % EFF HP PHASE VOLT MAX RPM

SPEED

CONTROL REMARKS

88-HWP-P-1 PRIMARY, INLINE WATER 100 15.35 1.0 61 0.75 1 110-240 3600 VARIABLE

88-HWP-P-2 PRIMARY, INLINE WATER 100 15.35 1.0 61 0.75 1 110-240 3600 VARIABLE

88-HWP-S-1 SECONDARY, FRAME-MOUNTED END SUCT. WATER 100 40 1.0 72 1.5 3 230-460 1760 VARIABLE

88-HWP-S-2 SECONDARY, FRAME-MOUNTED END SUCT. WATER 100 40 1.0 72 1.5 3 230-460 1760 VARIABLE

HOT WATER HEATING BOILER SCHEDULE

MARK TYPE

FLOW

(GPM) EWT LWT

WPD

(PSIG) HP

OUTPUT

(MBH)

MAX HEAT

INPUT (MBH) MIN % EFF

NG SUPPLY

PRESS. FUEL

RELIEF VALVE

SETTING (PSIG) PHASE VOLT REMARKS

88-B-1 HOT WATER BOILER 100 140 F 160 F 3 30 870-960 1000 87 7 IN. W.C. NAT. GAS 125 1 120

88-B-2 HOT WATER BOILER 100 140 F 160 F 3 30 870-960 1000 87 7 IN. W.C. NAT. GAS 125 1 120

Revisions: Date:

CHEMICAL FEED SYSTEM SCHEDULE

MARK TYPE

MAX OPERATING

PRESS.

MAX

TEMPERATURE

CONNECTION

SIZES HP PHASES VOLTS REMARKS

88-PF-1 DOME BOTTOM FILTER FEEDER 200 PSI 200 F 3/4 IN. N/A N/A N/A

NOTES: BASIS OF DESIGN IS TACO CA90-125

NOTES: BASIS OF DESIGN IS AERCO BENCHMARK 1000 HE BOILER

NOTES: BASIS OF DESIGN FOR PRIMARY PUMP IS TACO VR30M-F. BASIS OF DESIGN FOR SECONDARY PUMP IS TACO FI1507D-4P-PM

NOTES: BASIS OF DESIGN IS J.L. WINGERT CO. F-DB-HD

NOTES: BASIS OF DESIGN IS TACO 4903A-125

IT

MC HS BAS

STS

TYPICAL PRIMARY PUMP

B-2B-1

PP-2PP-1

SP-2SP-1

AS-1

ET-1

P O

T F

E E

D E

R

HWS TO

BLDG

HWR

FROM

BLDG

"Ø

H W

S

3"Ø HWS

3"Ø HWR

3"Ø HWS

3"Ø HWS

"Ø

H W

S

"Ø

H W

S

"Ø

H W

S

3"Ø HWS

"Ø

H W

S

"Ø

H W

R "Ø

H W

R

P-1.1

P-1.2 P-2.2

P-2.1

TT TT

T-1.1 T-2.1

T-3.1

TT

"Ø

H W

R

3"Ø HWR

TT TT

TT

FT

DPT

EXISTING BUILDING

DP SENSOR LOCATED

IN THE BUILDING

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

N/A

C U se rs

\h a u n g \D o c u m e n ts

\M cC le lla n B

B o ile r R e p la c e m e n t_ h a u n g

G H

V P

.r v t

/3

/2

:0

:0

P

M

MECHANICAL CONTROLS

Checker Author MI-401

HEATING HOT WATER CONTROL POINTS

System Component

Point Legend System Output Sytem Inputs System Software / Control

S h o w o n G ra p h ic s

T re n d in g

RemarksP o in t

ID

A b b re v ia ti o n

P ri o ri ty

A d d

-A lt e rn a te

N o

Binary Analog Binary Anaglog Alarm Processing Application / Function

E le ct ri c D e v ic e

S ta rt

S to p

O p e n

C lo s e

S p e e d C o m m a n d

V a lv e P o s it io n

D a m p e r P o si ti o n

S ta tu s

A la rm

P re ss u re b i)

H ig h H u m id ity

H ig h S ta ti c P re s s u re

L o w

T e m p e ra tu re

T e m p e ra tu re a n

P re ss u re a n

P o si ti o n

F lo w a n

P e rc e n t

S ta ti c P re s s u re

C a rb o n

M o n o x id e

H u m id ity

V a c u u m

L o c a l A la rm

P a n e l

A re a A la rm

P a n e l

M a st e r

A la rm P a n e l

H ig h L im it

L o w

L im it

S c h e d u le

S ta rt S to p

F u n c ti o n

D u ty

C y cl e

T e m p e ra tu re

E c o n o m iz e r

E n th a lp y E c o n o m iz e r

T e m p e ra tu re

R e se t

D e m a n d L im iti n g

T e m p e ra tu re

O v e rr id e

S ta ti c P re s s u re

R e se t

P re s su re V o lu m e

C o n tr o l

F a ilu re

M o d e

S p a c e T e m p e ra tu re C o n tr o l

F u ll

C o m m u n ic a ti o n

HWS TEMPERATURE AI HWST ● ● ●

HWR TEMPERATURE AI HWRT ● ● ●

BOILER 1 - HWS TEMPERATURE AI B1-HWST ● ● ●

BOILER 1 - HWR TEMPERATURE AI B1-HWRT ● ● ●

BOILER 2 - HWS TEMPERATURE AI B2-HWST ● ● ●

BOILER 2 - HWR TEMPERATURE AI B2-HWRT ● ● ●

LEAD PRIMARY PUMP VFD AO PP1-VFD ● ● ●

LAG PRIMARY PUMP VFD AO PP2-VFD ● ● ●

LEAD SECONDARY PUMP VFD AO SP1-VFD ● ● ●

LAG SECONDARY PUMP VFD AO SP2-VFD ● ● ●

LEAD PRIMARY PUMP ALARM BI PP1-ALA ● ●

LAG PRIMARY PUMP ALARM BI PP2-ALA ● ●

LEAD SECONDARY PUMP ALARM BI SP1-ALA ● ●

LAG SECONDARY PUMP ALARM BI SP2-ALA ● ●

LEAD PRIMARY PUMP STATUS BI PP1-STS ● ●

LAG PRIMARY PUMP STATUS BI PP2-STS ● ●

LEAD SECONDARY PUMP STATUS BI SP1-STS ● ●

LAG SECONDARY PUMP STATUS BI SP2-STS ● ●

HW FLOW PRIMARY (GPM) AI HW-PF ● ● ●

HW FLOW SECONDARY (GPM) AI HW-SF ● ● ●

BOILER 1-DP AI B1-DP ● ● ● ● ●

BOILER 2-DP AI B2-DP ● ● ● ● ●

BUILDING-DP AI BL-DP ● ● ● ● ●

BOILER 1 COMMUNICATION AI B1-COMM ● ●

BOILER 2 COMMUNICATION AI B2-COMM ● ●

1. GENERAL

1.1. THE CONTROL CONTRACTOR SHALL INTEGRATE ALL MECHANICAL EQUIPMENT WITH THE EXISTING

BAS SYSTEM.

1.2. AT COMPLETION OF PROJECT, CONTROL CONTRACTOR SHALL HAVE ACCOUNT EXECUTIVE,

TECHNICAL REPRESENTATIVE AND SERVICE REPRESENTATIVE PERFORM A WALKTHROUGH WITH

THE PROJECT ENGINEER, HVAC SHOP, M&O MAINTENANCE, BOILER PLANT OPERATORS, ETC. TO REVIEW ALL SYSTEMS, COMPONENTS, DEVICES, CONTROLS, PANELS, ETC. INSTALLED & INSTRUCT & DISPLAY ALL WORKING SET POINTS. THIS SHALL BE IN ADDITION TO TRAINING & INSTRUCTIONS ALREADY DESCRIBED IN THE SPECIFICATIONS. THIS SHALL BE COORDINATED & SCHEDULED TO

OCCUR PRIOR TO TURNING OVER THE SPACE TO THE CLIENT.

1.3. CONTROL CONTRACTOR SHALL PROVIDE BUT NOT LIMITED TO BELOW COMPONENTS TO CONNECT

MECHANICAL EQUIPMENT TO THE BUILDING AUTOMATION SYSTEM:

A. FLOW METER

B. BUILDING DIFFERENTIAL PRESSURE SENSOR (IF NOT ALREADY INSTALLED)

C. CURRENT SENSORS (IT)

2. HEATING HOT WATER BOILER CONTROL

2.1. HEATING HOT WATER (HW) BOILER SHALL BE ACTIVATED AND OPERATE TO MAINTAIN HEATING HW

TEMPERATURE SETPOINT WHEN THE WATER SUPPLY TEMPERATURE DROPS BELOW HEATING HW

TEMPERATURE SETPOINT.

2.2. THE HEATING HW BOILER MANUFACTURER SHALL PROVIDE BUT NOT LIMIT TO BELOW

COMPONENTS:

2.2.1. BAS GATEWAY.

2.2.2. BOILER TEMPERATURE SENSORS.

2.3. CONTROL CONTRACTOR SHALL PROVIDE BUT NOT LIMIT TO BELOW COMPONENTS:

2.3.1. START/STOP RELAY FOR THE LEAD BOILER.

2.3.2. AUTOMATIC CONTROL VALVES.

2.3.3. COMMUNICATION NETWORK TO CONNECT BOILERS, PUMPS INTO BAS.

2.3.4. LOOP TEMPERATURE SENSORS

2.3.5. FLOW METER

2.4. BOILER OPERATION

2.4.1. THE HEATING HOT WATER TEMPERATURE SETPOINT IS 160°F. THE BAS SHALL BE ABLE TO

MONITOR AND CHANGE SETPOINT REMOTELY.

2.4.2. BOILERS SHALL BE AUTOMATICALLY STARTED OR STOPPED BY THE BAS WHEN THE WATER

SUPPLY TEMPERATURE DROPS BELOW OR RISES ABOVE THE HEATING HW TEMPERATURE

SETPOINT FOR 30 MINUTES (ADJ.)

2.4.3. UPON ACTIVATION OF THE BOILER START SEQUENCE, THE BAS SHALL FIRST OPEN THE BOILER WATER ISOLATION VALVES. ONCE THE VALVE POSITION IS VERIFIED BY ZC, PRIMARY BOILER START/STOP (S/S) DIGITAL OUTPUT (D.O.) SHALL ENERGIZE TO ACTIVATE THE BOILER

PLANT.

2.4.4. UPON DEACTIVATION OF THE BOILER START SEQUENCE, THE REVERSE PROCESS SHALL

OCCUR.

2.4.5. CONTROL OF INTERNAL BOILER OPERATION SHALL BE THROUGH THE ON-BOARD CONTROL

PANEL PROVIDED BY THE BOILER MANUFACTURER. BOILERS SHALL MODULATE TO MAINTAIN

THE SUPPLY HEATING HOT WATER TEMPERATURE SETPOINT.

2.4.6. BOILER CONTROL PANEL SHALL SEND A SIGNAL TO BOILER PUMP TO MODULATE PUMP

SPEED IN ACCORDANCE WITH BOILER MODULATION.

2.4.7. BAS SHALL ENERGIZE THE LAG BOILER WHEN THE LEAD BOILER OPERATES AT 100%

CAPACITY AND WATER TEMPERATURE SETPOINT IS STILL NOT MET.

2.4.8. BAS SHALL ROTATE BOILERS TO EQUALIZE OPERATING TIME.

3. HOT WATER TEMPERATURE RESET

3.1. THE HOT WATER TEMPERATURE SETPOINT SHALL BE RESET LIMITED TO 1°F (ADJ) PER HOUR AS

FOLLOWS:

OA DRY BULB HW TEMPERATURE SETPOINT

= < 30°F (ADJ) 160°F (ADJ)

= > 70°F (ADJ) 140°F (ADJ)

THE HOT WATER SUPPLY SETPOINT SHALL LINEARLY RESET BETWEEN THESE TWO POINTS.

4. BUILDING PUMP CONTROL

4.1 SAFETIES AND ALARMS

4.1.1. ONLY ONE BUILDING PUMP SHALL OPERATE AT A TIME. IF EITHER PUMP FAILS, IT SHALL BE

LOCKED OUT. THE LAG PUMP SHALL BE STARTED. THE BAS SHALL NOT ATTEMPT TO START

THE FAILED PUMP UNTIL THE LOCKOUT IS MANUALLY RESET.

4.1.2. THE BAS SHALL MONITOR THE POSITIONS OF THE HOA AND NORMAL-TEST-BYPASS

SWITCHES ON THE VFD.

4.1.3. THE BAS SHALL ROTATE THE LEAD/LAG PUMP TO EQUALIZE RUN TIME.

4.2. OPERATION

4.2.1. A VARIABLE PUMP SYSTEM DESIGN SHALL BE IMPLEMENTED.

4.2.2. THE PUMP SHALL BE CONTROLLED TO SATISFY BUILDING DP SETPOINT.

4.2.3. THE PUMP SPEED SHALL NOT DROP BELOW THE MINIMUM PUMP FLOW AS REQUIRED BY THE

PUMP MANUFACTURER (+10% SAFETY) OR THE MINIMUM VFD SPEED AS RECOMMENDED BY

THE VFD MANUFACTURER, WHICHEVER IS GREATER.

4.2.4. SHOULD THE BUILDING DP REACH OR EXCEED THE SETPOINT AND MINIMUM SPEED FOR THE

PUMP IS REACHED, THE PUMP SHALL MAINTAIN MINIMUM SPEED AND THE MINIMUM BYPASS

CONTROL VALVE SHALL MODULATE TO MAINTAIN THE DP SET POINT.

4.2.5. BUILDING PUMP SHALL RUN UPON HEATING COMMAND FROM ANY EQUIPMENT AND RUN AT

VARIABLE SPEED TO MEET THE DP SENSOR SETPOINT AT THE BUILDING. SETPOINT SHALL BE

SET AND VERIFIED DURING TESTING, ADJUSTING, AND BALANCING.

4.2.6. UPON AN INCREASE IN BUILDING DP ABOVE SETPOINT THE BUILDING PUMP SHALL SLOW

DOWN TO MAINTAIN THE SETPOINT (ADJ.)

4.2.7. UPON A DECREASE IN BUILDING DP BELOW SETPOINT (ADJ.) THE REVERSE PROCESS SHALL

OCCUR.

5. HOT WATER TEMPERATURE RESET

5.1. BOILER MBH SHALL BE CALCULATED AND INDICATED AT THE BAS USING HOT WATER FLOW RATE

AND TEMPERATURES AS FOLLOWS:

MBH = ((HWS - HWR)) X FLOW RATE (GPM)) X 500/1000

6. ALARM

6.1. ALARM SHALL INDICATE AT THE BAS WHEN THE FOLLOWING HAPPENS:

6.1.1. HEATING HW PUMP IS COMMANDED TO RUN, BUT PUMP OPERATION IS NOT DETECTED BY IT.

6.1.2. BOILER PUMP IS COMMANDED TO RUN, BUT PUMP OPERATION IS NOT DETECTED BY IT.

6.1.3. BOILER ISOLATION VALVE POSITIONS ARE NOT VERIFIED BY ZC.

6.1.4. THE HEATING HOT WATER SUPPLY TEMPERATURE IS 5°F (ADJ.) GREATER OR LESS THAN THE

TEMPERATURE SETPOINT FOR 20 CONSECUTIVE MIN (ADJ.).

Revisions: Date:

6" = 1'-0"

MECHANICAL CONTROLS DIAGRAM

EXISTING PNL "BNL1"

EXISTING TELECOM

CABINET

EXISTING COMMUNICATION

CABINET

EXISTING AHU-1

EXISTING CONCRETE

PAD TO REMAIN.

DEMOLISH EXISTING DOMESTIC

WATER HEATERS, ASSOCIATED

PIPING, AND APPURTENANCES.

DEMOLISH EXISTING FLUE

VENT TO BOILERS AND

DOMESTIC WATER HEATERS.

DEMOLISH EXISTING

WATER SOFTENER SYSTEM

AND ASSOCIATED PIPING.

NG

DHW

DCW

DHWR

NG

D C

W D

C W

6"

FV

6"

FV

8"

FV

F V

8"⌀

FV

6"⌀

FV

F V

D C

W

3/4"

NG

1"

DHWR

2"

DHW

/2

N G

3/4"

NG

2 1/2"

DCW

2 1/2"

DCW

PQ-102

3/4"

NG

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

C U se rs

\h a u n g \D o c u m e n ts

\M cC le lla n B

B o ile r R e p la c e m e n t_ h a u n g

G H

V P

.r v t

/3

/2

:0

:0

P

M

1/2" = 1'-0"

LEVEL 0 - PLUMBING DEMOLITION PLAN

Checker Author PD-101

1/2" = 1'-0"

BASEMENT - PLUM DEMOLITION

DHWRDHWS

DCW

CONNECT COMBUSTION

AIR INTAKE TO EXISTING

LOUVER ABOVE DOOR.

(TYP) MODIFY LOUVER

AS REQUIRED.

3"

CA 3"

CA 6"

CA 6"

CA

8"

FV

F V

88 - DWH-1

88 - DWH-2

MIXING STATION

FLUE VENT UP THRU

EXISTING ROOF

PENETRATION.

MODIFY AS

REQUIRED.

88-WS-1

88-WS-2

WATER SOFTENER

STORAGE TANK

6"

FV

88 - DET - 1

2 1/2"

DCW

2 1/2"

DCW

/4

N G

PQ-102

PROVIDE CONDENSATE

NEUTRALIZATION KIT,

ONE PER BOILER

8"

FV

6"

FV

PROVIDE CODE-

COMPLIANT MOTORIZED

DAMPER AND INTERLOCK

WITH WATER HEATER.

ONE PER WATER HEATER.

PROVIDE CODE- COMPLIANT

MOTORIZED DAMPER AND

INTERLOCK WITH BOILER.

ONE PER BOILER.

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

C U se rs

\h a u n g \D o c u m e n ts

\M cC le lla n B

B o ile r R e p la c e m e n t_ h a u n g

G H

V P

.r v t

/3

/2

:0

:0

P

M

1/2" = 1'-0"

LEVEL 0 - PLUMBING PLAN

Checker Author PQ-101

1/2" = 1'-0"

BASEMENT - PLUM NEW WORK

Level 1

10' - 0"

BASEMENT

0' - 0"

Level 1

10' - 0"

BASEMENT

0' - 0"

F V

F V

8"

FV

8"

FV

MIXING STATION

D H

W

D C

W

/4

D H

W R

88-HWR-1

88-B-1

88-B-2

88 - DWH-2

88 - DWH-1

1 1/2"

NG

3/4"

NG

D C

W

6"

CA

3"⌀ CA

88 - DET - 1

NATURAL GAS

SUPPLY TO WH

DHW SUPPLY

TO BUILDING

DCW SUPPLY

TO WH

DHWR FROM

BUILDING

2 1/2"

DCW

2 1/2"

DCW

88-WS-1

88-WS-2

WATER SOFTENER

STORAGE TANK

Level 1 10' - 0"

BASEMENT

0' - 0"

MIXING STATION

88 - DWH-188 - DWH-2 88 - DET - 1

D C

W

D C

W

D C

W

2"

DCW

3"

CA

2"

DHW

2"

DCW

2"

DHW

D C

W

/4

D H

W R

D H

W

6"

FV

3"

CA

/4

N G

/4

N G

NATURAL GAS

SUPPLY TO WH

DHW SUPPLY

TO BUILDING

DCW SUPPLY

TO WH

DHWR FROM

BUILDING

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

C U se rs

\h a u n g \D o c u m e n ts

\M cC le lla n B

B o ile r R e p la c e m e n t_ h a u n g

G H

V P

.r v t

/3

/2

:0

:0

P

M

3/4" = 1'-0"

LEVEL 0 - PLUMBING PLAN VIEWS

Checker Author PQ-102

PLUMBING NEW WORK ISOMETRIC - DOMESTIC WATER HEATER

PLUMBING NEW WORK ISOMETRIC - WATER SOFTENERS

Revisions: Date:

3/4" = 1'-0"

Section 2 DRAFT

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

N/A

C U se rs

\h a u n g \D o c u m e n ts

\M cC le lla n B

B o ile r R e p la c e m e n t_ h a u n g

G H

V P

.r v t

/3

/2

:0

:0

P

M

PLUMBING SCHEDULES

Checker Author PI-201

PLUMBING PUMP SCHEDULE

MARK

SYSTEM AND/OR

SERVICE TYPE FLUID FLOW HEAD NPSH TEMPERATURE SP. GR.

MIN. %

EFF HP PHASE VOLT MAX RPM

SPEED

CONTROL REMARKS

88-HWR-1 DHW CARTRIDGE RECIRC WATER 7 GPM 24.7 FT N/A 120 1.0 N/A 1/8 1 115 3250 CONSTANT

WATER SOFTENER SCHEDULE

MARK

SYSTEM AND/OR

SERVICE TYPE

INCOMING WATER

HARDNESS

CONTINUOUS

FLOW RATE

PEAK FLOW

RATE

INLET

PRESSURE

BACK WASH

FLOW RATE

SALT

DOSAGE MIN BED MAX BED

TANK SIZE

(DIAM)

SALT CAPACITY

OF BRINE TANK AMP PHASE VOLT REMARKS

88-WS-1 DHW WATER SOFTENER 74 GPM 97 GPM 30-125 PSI 12 GPM 120 LBS 48 LBS 120 LBS 24 IN. 510 LBS N/A 1 120

88-WS-2 DHW WATER SOFTENER 74 GPM 97 GPM 30-125 PSI 12 GPM 120 LBS 48 LBS 120 LBS 24 IN. 510 LBS N/A 1 120

GAS FIRED WATER HEATER SCHEDULE

MARK

SYSTEM AND/OR

SERVICE TYPE

STORAGE

CAPACITY

RECOVERY

@70F RISE

TIME TO RECOVER

CONTENTS (MINS)

RELIEF VALVE

SETTING FUEL TYPE

INLET

PRESSURE FLOW

HEATING

CAPACITY PHASE VOLT REMARKS

88-DWH-1 DHW GAS WATER HEATER 80 GAL 218 GPH 31 150 PSI NATURAL GAS 5-14 IN. W.C. 153 GPH 130,000 BTU/h 1 120

88-DWH-2 DHW GAS WATER HEATER 80 GAL 218 GPH 31 150 PSI NATURAL GAS 5-14 IN. W.C. 153 GPH 130,000 BTU/h 1 120

DOMESTIC WATER THERMAL EXPANSION TANK SCHEDULE

MARK TYPE

MIN. TEMP

(F)

MAX.

TEMP (F)

INITIAL PRESSURE

IN TANK

MAX OPERATING

PRESSURE

RELIEF

VALVE PSIG

MIN. TANK

VOLUME

MIN. ACCEPT

VOLUME

PIPE SIZE

TO TANK REMARKS

88-DET-1 POTABLE EXPANSION TANK 33 240 40 PSI 150 PSIG 150 PSIG 15 GAL 10 GAL 1 IN.

DOMESTIC HOT WATER BLENDING VALVE SCHEDULE

MARK

SYSTEM AND/OR

SERVICE

VALVE

SIZE (IN.)

MAX FLOW

RATE MATERIAL

HOT WATER

INLET

MIX WATER

OUTLET

COLD WATER

INLET

RETURN TO

HEATER

MIXED

RETURN

DRAIN

(NPT) REMARKS

88-TMV-1 DHW 2 IN. 78 GPM STAINLESS STEEL 2 IN. 2 IN. 2 IN. 2 IN. 2 IN. 1/2 IN.

Revisions: Date:

NOTES: BASIS OF DESIGN IS MIALO 050SS

NOTES: BASIS OF DESIGN IS WATTS DETA 30

NOTES: BASIS OF DESIGN IS RHEEM TRITON GHE80SU-130(A)

NOTES: BASIS OF DESIGN IS TACO IL0011

NOTES: BASIS OF DESIGN IS MARLO MGT-240-2

HS MS

IT

STS

ECC

2"Ø DHW

2"Ø DCW

DWH-2DWH-1

DET-1

DHW RECIRC

TO TMV

DCW TO

WH

DHW TO

BLDG

TMV-1

HWR-1

2"Ø DCW

2"Ø DHW

3/4"Ø

DHW

2 1/2"Ø DCW

2 1/2"Ø DCW

WS-1 WS-1

WS

STORAGE

TANK

DCW TO

WS-1

AND -2

DCW TO

BLDG

ISO VALVE

2"Ø DHW

TT PT

TTTT

TTPT

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANTS

321 4 5 6 7 8 9 10

248 Copeland Street Quincy, MA 02169 P: 617-481-6390 F: 617-687-5990

BUILDING 88 BOILER & DOMESTIC

WATER HEATER REPLACEMENT

McClellan VA Clinic 5342 Dudley Boulevard, McClellan Park, CA 95652New England Engineering, Inc.

30 Turnpike Road, Suite #1 Southborough, MA 01772 Phone: (508) 485-4633 Ext. 54

FAX: (508) 485-1830

July 10, 2026

KEY PLAN

Drawing Scale

N/A

C U se rs

\h a u n g \D o c u m e n ts

\M cC le lla n B

B o ile r R e p la c e m e n t_ h a u n g

G H

V P

.r v t

/3

/2

:0

:0

P

M

PLUMBING CONTROLS

Checker Author PI-401

1. GENERAL

1.1. DOMESTIC WATER SYSTEM SHALL BE TIED INTO THE EXISTING BUILDING MANAGEMENT SYSTEM.

1.2. CONTROL CONTRACTOR SHALL PROVIDE GRAPHICS ON BAS SHOWING ALL THE AVAILABLE

CONTROL POINTS. BAS SHALL BE ABLE TO MONITOR AND CONTROL THE DOMESTIC WATER HEATER, INCLUDING BUT NOT LIMITED TO THERMAL MIXING VALVE.

1.3. AT COMPLETION OF PROJECT, CONTROLS CONTRACTOR SHALL HAVE ACCOUNT EXECUTIVE,

TECHNICAL REPRESENTATIVE AND SERVICE REPRESENTATIVE PERFORM A WALKTHROUGH WITH VA

PROJECT ENGINEER, HVAC SHOP, PLUMBING SHOP, M&O MAINTENANCE, ETC. TO REVIEW ALL

SYSTEMS, COMPONENTS, DEVICES, CONTROLS, PANELS, ETC. INSTALLED & INSTRUCT & DISPLAY ALL WORKING SET POINTS. THIS SHALL BE IN ADDITION TO TRAINING & INSTRUCTIONS ALREADY DESCRIBED IN SPECIFICATIONS. THIS SHALL BE COORDINATED & SCHEDULED TO OCCUR PRIOR TO

TURNING OVER THE SYSTEM TO THE VA.

1.4. UNITS CAN BE NORMALLY STARTED AND STOPPED REMOTELY AT THE BAS.

1.5. CONTROL CONTRACTOR SHALL PROVIDE BUT NOT LIMIT TO THE FOLLOWING COMPONENTS TO

MAKE A COMPLETE DOMESTIC WATER SYSTEM:

A. DHWR TEMPERATURE SENSOR

B. FLOW METER

1.6. WATER HEATERS AND THERMAL MIXING VALVE SHALL BE PACKAGED, SKID MOUNTED SYSTEMS WITH BUILT-IN CONTROLLER. CONTROLLER SHALL HAVE BACNET CONNECTION CAPABILITY THAT

ALLOWS THE BAS TO MONITOR AND CONTROL THE SYSTEM. CONTROL SHALL PROVIDE LOCAL

ALARMS AND AT BAS IF DEVIATIONS FROM THE CONTROL PARAMETERS ARE DETECTED.

2. DOMESTIC HOT WATER HEATER CONTROL

2.1. TEMPERATURE CONTROL OF DOMESTIC HOT WATER HEATERS:

2.1.1. DOMESTIC HOT WATER (HW) SUPPLY TEMPERATURE SETPOINT IS 130°F (ADJ.). BAS SHALL BE

ABLE TO MONITOR AND CHANGE THE SETPOINT REMOTELY.

2.1.2. THE DOMESTIC HW HEATER CONTROLLER SHALL MODULATE SUPPLY WATER CONTROL

VALVE TO MAINTAIN DOMESTIC HW SUPPLY TEMPERATURE SETPOINT AT ALL TIMES. THE

SUPPLY WATER VALVE COMMAND AND POSITION SHALL BE INDICATED ON BAS GRAPHICS.

3. THERMOSTATIC MIXING VALVE CONTROL

3.1. TEMPERATURE CONTROL OF THERMAL MIXING VALVE:

3.1.1. DOMESTIC HOT WATER (HW) SUPPLY TEMPERATURE SETPOINT IS 120°F (ADJ.). BAS SHALL BE

ABLE TO MONITOR AND CHANGE THE SETPOINT REMOTELY.

3.1.2. THE CONTROLLER SHALL MODULATE MIXING VALVE TO MAINTAIN DOMESTIC HW SUPPLY

TEMPERATURE SETPOINT AT ALL TIMES. THE MIXING VALVE COMMAND AND POSITION SHALL

BE INDICATED ON BAS GRAPHICS.

4. ALARM

4.2. ALARM SHALL INDICATE AT THE BAS WHEN THE FOLLOWING HAPPENS:

4.2.1. DOMESTIC HW PUMP IS COMMANDED TO RUN, BUT PUMP OPERATION IS NOT DETECTED BY

IT.

4.2.2. WATER HEATER ISOLATION VALVE POSITIONS ARE NOT VERIFIED BY ZC.

4.2.3. THE DOMESTIC HOT WATER SUPPLY TEMPERATURE IS 5°F (ADJ.) GREATER OR LESS THAN

THE TEMPERATURE SETPOINT FOR 20 CONSECUTIVE MIN (ADJ.).

DOMESTIC HOT WATER CONTROL POINTS

System Component

Point Legend System Output Sytem Inputs System Software / Control

S h o w o n G ra p h ic s

T re n d in g

RemarksP o in t

ID

A b b re v ia ti o n

P ri o ri ty

A d d

-A lt e rn a te

N o

Binary Analog Binary Anaglog Alarm Processing Application / Function

E le ct ri c D e v ic e

S ta rt

S to p

O p e n

C lo s e

S p e e d C o m m a n d

V a lv e P o s it io n

D a m p e r P o si ti o n

S ta tu s

A la rm

P re ss u re b i)

H ig h H u m id ity

H ig h S ta ti c P re s s u re

L o w

T e m p e ra tu re

T e m p e ra tu re a n

P re ss u re a n

P o si ti o n

F lo w a n

P e rc e n t

S ta ti c P re s s u re

C a rb o n

M o n o x id e

H u m id ity

V a c u u m

L o c a l A la rm

P a n e l

A re a A la rm

P a n e l

M a st e r

A la rm P a n e l

H ig h L im it

L o w

L im it

S c h e d u le

S ta rt S to p

F u n c ti o n