Project Information

Bid Title

Bid 26121 - Edward L. Smith Library HVAC Replacement

Issuing Agency

Town of North Branford

Location

Connecticut

Published Date

Jan 27, 2026

Closing Date

Mar 4, 2026

Government Level

State & Local

Status

Closed

Ref. #

Bid 26121

Original Source

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Bid Inquiries

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Bid Documents

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Project Description

Bid Number:	Bid 26121
Bid Title:	Bid 26121 - Edward L. Smith Library HVAC Replacement
Category:	Bids
Status:	Open

Description: The Edward L. Smith Library HVAC Replacement project consists of removal and replacement of the building’s VRF systems with controls, perimeter electric heating systems, exhaust fans with controls and supplemental electrical, structural, cutting, patching, and painting scope of work.  CHRO and Prevailing Wage Rates are required. Publication Date/Time: 1/27/2026 4:15 PM Publication Information: ADVERTISED 01/25/2026 Closing Date/Time: 3/4/2026 11:00 AM Submittal Information: Submit PDF of bids digitally to: bids@nbct.us Hard Copy Bid Bond Bid Opening Information: Town Hall Pre-bid Meeting: Friday February 6, 2026 10AM Business Hours: M_F 8:30-4:30 Fax Number: 203-484-6025 Related Documents: 4465 North Branford EL Smith Library HVAC Renovation Bid dwgs 4465 North Branford EL Smith Library HVAC Renovation Bid Specs 01272026

Attachment Preview

LOCATION PLAN

N NOT TO SCALE

TOWN OF NORTH BRANFORD

3 OLD POST ROAD,

NORTHFORD, CT 06472

EDWARD L. SMITH LIBRARY HVAC REPLACEMENT

BID DOCUMENTS

JANUARY 16, 2026

ENGINEER:

919 Middle Street

Middletown, CT 06467

Phone: (860) 635-7740

Fax: (860) 635-7312

PROJECT LOCATION

INDEX OF DRAWINGS

NO.

TITLE

COVER SHEET

M001

MECHANICAL NOTES, SYMBOLS AND ABBREVIATIONS

MD101 MECHANICAL LOWER LEVEL PLAN - DEMOLITION WORK

MD102 MECHANICAL UPPER LEVEL PLAN - DEMOLITION WORK

M101

MECHANICAL LOWER LEVEL PLAN - NEW WORK

M102

MECHANICAL UPPER LEVEL PLAN - NEW WORK

M401

MECHANICAL DETAILS

M402

MECHANICAL DETAILS

M403

MECHANICAL DETAILS

M404

MECHANICAL DETAILS

M405

MECHANICAL DETAILS

M406

MECHANICAL DETAILS

M407

MECHANICAL PIPING DIAGRAMS

M408

MECHANICAL CONTROL DIAGRAMS

M501

MECHANICAL SCHEDULES

E001

ELECTRICAL NOTES, SYMBOLS LIST AND ABBREVIATIONS

ED-101 ELECTRICAL FIRST FLOOR PLAN DEMOLITION

ED-102 ELECTRICAL SECOND FLOOR PLAN DEMOLITION

E-101

ELECTRICAL FIRST FLOOR PLAN NEW WORK

E-102

ELECTRICAL SECOND FLOOR PLAN NEW WORK

E-401

ELECTRICAL PANEL SCHEDULES

E-402

ELECTRICAL SCHEDULES & ONE-LINE DIAGRAM

GENERAL MECHANICAL SYMBOLS

HVAC SYMBOLS

-

---

1

1

Room

5

NUMBER OF DETAIL ON SHEET

NUMBER OF SHEET WHERE DETAIL APPEARS

DEMOLITION WORK KEYNOTE

NEW WORK KEYNOTE

CONTINUATION SYMBOL

ROOM NAME AND NUMBER

18"x12"

18"/12"

18"Ø

18"x18" S/A

SQUARE DUCT SIZE TAG (WIDTH x HEIGHT)

OVAL DUCT SIZE TAG (WIDTH / HEIGHT)

ROUND DUCT SIZE TAG (DIAMETER)

EXISTING DUCT (THIN, LIGHT LINES)

DUCT BEING DEMOLISHED

SUPPLY AIR

AREA NOT IN CONTRACT

18"x18" O/A

OUTSIDE AIR

EXISTING ITEM TO BE REMOVED

THICK, DASHED LINES ON DEMOLITION DWGS

INDICATE EXISTING ITEM TO BE REMOVED

18"x18" R/A

18"x18" T/A

18"x18" E/A

RETURN AIR

TRANSFER AIR

GENERAL EXHAUST AIR

THICK, DARK SOLID LINES ON NEW WORK

DWGS INDICATE NEW OR RELOCATED ITEMS

THIN, LIGHT LINES ON DEMOLITION AND NEW

WORK DWGS INDICATE EXISTING ITEMS TO

REMAIN IN PLACE AND BE REUSED

POINT OF DEMOLITION WORK CONNECTION TO EXISTING

CAP

PROVIDE PERMANENT CAP (INSULATE CAP AS REQUIRED)

POINT OF DEMOLITION WORK CONNECTION TO EXISTING

PROVIDE TEMPORARY CAP DURING CONSTRUCTION

POINT OF NEW WORK CONNECTION TO EXISTING

ETR

SUB LETTERS ETR INDICATES EXISTING EQUIPMENT TO REMAIN INTACT

ABBREVIATIONS

Ø

ABV

AC

AD

ADD

AFF

AFG

AFUE

ALT

AP

ARCH

BFF

BLW

BOD

BOP

BTU

BTUH

CAP

CB

CFM

CLG

CO

CW

D

DB

DHWG

DIA

DN

DW

EA

EAT

ELEC

EQUIP

EWC

EWT

E/A

EXIST

F

FCO

FD

FDC

FL

FO

FOV

FOR

FOS

FPM

FS

FT

FTR

GAL

GF

GC

GPM

GW

HB

HP

HTG

HTR

HVLS

HW

ID

IN

INV

KHWG

LB

LB/HR

LAT

LPG

ROUND

ABOVE

AIR CONDITIONING

AREA DRAIN

ADDENDUM

ABOVE FINISHED FLOOR

ABOVE FINISHED GRADE

ANNUAL FUEL UTILIZATION EFFICIENCY

ALTERNATE

ACCESS PANEL

ARCHITECT/ARCHITECTURAL

BELOW FINISHED FLOOR

BELOW

BOTTOM OF DUCT

BOTTOM OF PIPE

BRITISH THERMAL UNITS

BRITISH THERMAL UNITS PER HOUR

CAPACITY

CATCH BASIN

CUBIC FEET PER MINUTE

CEILING

CLEAN OUT

COLD WATER

DEGREE

DRY BULB

DOMESTIC HOT WATER GENERATOR

DIAMETER

DOWN

DISTILLED WATER

EACH

ENTERING AIR TEMPERATURE

ELECTRICAL

EQUIPMENT

ELECTRIC WATER COOLER

ENTERING WATER TEMPERATURE

EXHAUST AIR

EXISTING

DEGREES FAHRENHEIT

FLOOR CLEAN OUT

FLOOR DRAIN

FIRE DEPARTMENT CONNECTION

FLOOR

FUEL OIL

FUEL OIL VENT

FUEL OIL RETURN

FUEL OIL SUPPLY

FEET PER MINUTE

FLOOR SINK

FOOT/FEET

FIN TUBE RADIATION

GALLON

GAS-FIRED

GENERAL CONTRACTOR

GALLONS PER MINUTE

GREASE WASTE

HOSE BIB

HORSE POWER

HEATING

HEATER

HIGH VOLUME LOW SPEED

HOT WATER

INDIRECT

INCH

INVERT

KITCHEN HOT WATER GENERATOR

POUND

POUNDS PER HOUR

LEAVING AIR TEMPERATURE

LIQUEFIED PETROLEUM GAS

LVR

LWT

M/A

MAX

MBH

MCF

MD

MECH

MFR

MIN

MISC

MTR

MU/A

NC

NC

NIC

NO

NO

NTS

O

O/A

ORD

PD

PIV

PLBG

PRESS

PRV

PSI

PSIG

PWR

R

R/A

RCP

RD

REC

RED

RH

RL/A

RM

RPM

RW

SF

S/A

SAN

SF

SD

SM

SP

SP

STM

T

T.O.P.

TD

TDR

TEMP

TYP

UG

VAC

V

VAV

VENT

VTR

W

WB

WCO

WH

LOUVER

LEAVING WATER TEMPERATURE

MIXED AIR

MAXIMUM

ONE THOUSAND BTU PER HOUR

ONE THOUSAND CUBIC FEET

MOTORIZED DAMPER

MECHANICAL

MANUFACTURER

MINIMUM

MISCELLANEOUS

MOTOR

MAKE-UP/AIR

NOISE CRITERIA

NORMALLY CLOSED

NOT IN CONTRACT

NUMBER

NORMALLY OPEN

NOT TO SCALE

OXYGEN

OUTSIDE AIR

OVERFLOW ROOF DRAIN

PRESSURE DROP

POST INDICATOR VALVE

PLUMBING

PRESSURE

PRESSURE REDUCING VALVE

POUNDS PER SQUARE INCH

POUNDS PER SQUARE INCH GAUGE

POWER

DUCT RISER

RETURN AIR

RADIANT CEILING PANEL

ROOF DRAIN

RECESSED

REDUCER

RELATIVE HUMIDITY

RELIEF AIR

ROOM

REVOLUTIONS PER MINUTE

RAIN WATER

SQUARE FOOT

SUPPLY AIR

SANITARY

SQUARE FOOT

SMOKE DAMPER

SURFACE MOUNT

STANDPIPE

STATIC PRESSURE

STEAM

THERMOSTAT

TOP OF PIPE

TEMPERATURE DROP

TRENCH DRAIN

TEMPERATURE

TYPICAL

UNDERGROUND

VACUUM

VENT

VARIABLE AIR VOLUME

VENTILATION

VENT THROUGH ROOF

WASTE

WET BULB

WALL CLEAN OUT

WALL HYDRANT

EQUIPMENT ABBREVIATIONS

AC

ACCU

AHU

AS

B

CH

CT

CUH

CHWP

DBP

DC

DCP

DU

EF

EDC

AIR CONDITIONING UNIT

AIR COOLING CONDENSING UNIT

AIR HANDLING UNIT

AIR SEPARATOR

BOILER

CHILLER

COOLING TOWER

CABINET UNIT HEATER

CHILLED WATER PUMP

DOMESTIC WATER BOOSTER PUMP

DUCT MOUNTED COIL

DOMESTIC WATER CIRCULATING PUMP

DISTRIBUTION (REFRIGERANT) UNIT

EXHAUST FAN

ELECTRIC DUCT COIL

ET

EXPANSION TANK

EWH ELECTRIC WATER HEATER

FCU FAN COIL UNIT

FP

FIRE PUMP

GI

GREASE INTERCEPTOR

GRV GRAVITY ROOF VENTILATOR

HWP HEATING WATER PUMP

HRU HEAT RECOVERY UNIT

PRV POWER ROOF VENTILATOR

RE

RETURN/EXHAUST FAN

RTU ROOFTOP UNIT

SF

SHOT FEEDER

SP

SUMP PUMP

UH

UNIT HEATER

VRF-CP VRF CONTROL PANEL

WH WATER HEATER

18"x18" L/A

18"x18" GE/A

18"x18" SE/A

6"Ø FLUE

6"Ø C/A

DROP

DROP

DROP

DROP

DROP

DROP

GENERAL RELIEF AIR

GREASE EXHAUST AIR

SMOKE EXHAUST AIR

EXHAUST GAS FLUE

COMBUSTION AIR

RECTANGULAR SUPPLY/OUTSIDE COMBUSTION AIR DUCT RISE

ROUND SUPPLY/OUTSIDE COMBUSTION AIR DUCT RISE

RECTANGULAR RETURN/TRANSFER AIR DUCT RISE

ROUND RETURN/TRANSFER AIR DUCT RISE

RECTANGULAR EXHAUST/RELIEF/SMOKE/GREASE/FLUE AIR

DUCT RISE

ROUND EXHAUST/RELIEF/SMOKE/GREASE/FLUE AIR DUCT RISE

INTERNAL ACOUSTICALLY 1.5" LINED DUCTWORK

TYPE (SEE SCHEDULE)

SUPPLY DIFFUSER

GRILLES, REGISTERS & DIFFUSERS TAG

A 400

9X9

CFM

NECK SIZE

TYPE (SEE SCHEDULE)

RETURN GRILLE

B1 400

12X12

CFM

NECK SIZE

TYPE (SEE SCHEDULE)

EXHAUST GRILLE

B 400

10X10

CFM

NECK SIZE

TYPE (SEE SCHEDULE)

LSD1 200

1 / 4' - 0" / 8"

LINEAR SLOT

DIFFUSER

LINEAR DIFFUSER TAG

LSD1 200

1 / 4' - 0" / 8"

8' - 0"AFF

CFM

NUMBER OF SLOTS /

ACTIVE SLOT LENGTH (PLENUM LENGTH) /

NECK SIZE

ELEVATION (CENTER OF FACE)

LSD1 200

1 / 4' - 0" / 8"

HEATING

COIL

FLOW

VAV-XX

Htg: 3.7 GPM

VAV BOX

BOTTOM OF EQUIPMENT

ELEVATION

MECHANICAL EQUIPMENT TAGS

VAV-XX

10' - 0"

OPERATING WEIGHT

NOT INCLUDING CURB

RTU-XX

4.0 ton

RTU-XX

590 lb

EXISTING VAV BOX

TO REMAIN

VAV LABEL

MAX CFM

EXISTING RELOCATED

EQUIPMENT

VAV-S-3

355/155

(R)VAV-XX

NOMINAL COOLING

CAPACITY

MIN CFM FUEL INPUT

GAS PIPE FLOW

ROOFTOP UNIT

RTU-XX

115000 Btu/h

115 CFH

EQUIPMENT BY OTHERS

(REFER TO OTHER DISCIPLINE

FOR ADDITIONAL INFORMATION)

VAV-XX

COMB. FIRE/SMOKE DAMPER

FIRE DAMPER

SMOKE DAMPER

12"x12" S/A

SD FD

DAMPER TAGS

F/SD

VD M

MANUAL BALANCING DAMPER

MOTORIZED DAMPER

BACKDRAFT DAMPER

BD

12"x12" S/A

PIPING SYMBOLS

CHWR

CHWS

C

CW

CWR

CWS

D

FOR

FOS

GWR

GWS

HWR

HRR

HWS

G

PG

RL

RS

RHG

STM

SCR

MPS

MPR

SHWR

SHWS

THWR

THWS

TFOR

TFOS

TPRVD

PIPE ANCHOR

CHILLED WATER RETURN

CHILLED WATER SUPPLY

CONDENSATE DRAIN

COLD MAKEUP WATER

CONDENSER WATER RETURN

CONDENSER WATER SUPPLY

DRAIN

FUEL OIL RETURN

FUEL OIL SUPPLY

GEOTHERMAL WATER RETURN

GEOTHERMAL WATER SUPPLY

HEATING WATER RETURN

HEAT RECOVERY RETURN

HEATING WATER SUPPLY

NATURAL GAS

PROPANE GAS

REFRIGERANT-LIQUID

REFRIGERANT-SUCTION

REFRIGERANT-HOT GAS

LOW PRESSURE STEAM

LOW PRESSURE STEAM CONDENSATE RETURN

MEDIUM PRESSURE STEAM

MEDIUM PRESSURE STEAM CONDENSATE RETURN

SCHEDULED HOT WATER RETURN

SCHEDULED HOT WATER SUPPLY

TEMPORARY HEATING WATER RETURN

TEMPORARY HEATING WATER SUPPLY

TEMPORARY FUEL OIL RETURN

TEMPORARY FUEL OIL SUPPLY

TEMPORARY PRESSURE RELIEF VALVE DISCHARGE

PIPE GUIDES

BLIND FLANGE (BF)

PIPE TEE DOWN

IN-LINE EXPANSION

COMPENSATOR

STEAM TRAP ASSEMBLY

STEEL PENETRATION /

PIPE SLEEVE

PIPE ELBOW UP

TAKEOFF FROM TOP

OF MAIN PIPE

TAKEOFF FROM

BOTTOM OF MAIN

PIPE

DIRECTION OF FLUID

FLOW

AIR VENT

COMPANION FLANGE

PIPE ELBOW DOWN

PIPE CAP (CAP)

UNION

BALL VALVE

PRESSURE

REGULATOR

BUTTERFLY VALVE

VALVES AND FITTINGS

M

LOCK SHIELD VALVE

PRESSURE

M

REDUCING VALVE

Y-STRAINER

2-WAY CONTROL VALVE

3-WAY CONTROL VALVE

SAFETY RELIEF VALVE

CHECK VALVE

BALANCING VALVE S

QUICK OPENING VALVE

SOLENOID VALVE

GATE VALVE

PLUG VALVE

GLOBE VALVE

GAS SHUTOFF COCK

CONTROLS SYMBOLS

WC

WIRED CONTROLLER

DS

DUCT SMOKE DETECTOR

AO

ANALOG OUTPUT

AI

ANALOG INPUT

BO

BINARY OUTPUT

BI

BINARY INPUT

FS

FLOW SWITCH

PS

STATIC PRESSURE SENSOR

FGM NATURAL GAS FLOW METER

FOM OIL FLOW METER

NGM NATIONAL GRID NATURAL

GAS METER

WM WATER METER

FILTER SECTION

SP

STATIC PRESSURE SENSOR - HIGH LIMIT

H

SP

STATIC PRESSURE SENSOR - LOW LIMIT

L

T

THERMOSTAT

HEATING COIL

TS

TEMPERATURE SENSOR

T/CO2 THERMOSTAT & CARBON DIOXIDE SENSOR

COOLING COIL

T/RH THERMOSTAT & RELATIVE HUMIDITY SENSOR

RH

RELATIVE HUMIDITY SENSOR

CO2 CARBON DIOXIDE SENSOR

H2

HYDROGEN SENSOR

NO2 NITROGEN DIOXIDE SENSOR

CO

CARBON MONOXIDE SENSOR

CO

CARBON MONOXIDE &

NO2 NITROGEN DIOXIDE SENSOR

STARTER

T

BMS TEMPERATURE SENSOR

IN THERMOWELL

THERMOMETER IN

THERMOWELL

T/P

TEMPERATURE/

PRESSURE GAUGE

M

MOTORIZED DAMPER -

PARALLEL BLADES

M

MOTORIZED DAMPER -

OPPOSED BLADES

* NOTE *

ALL OF GENERAL NOTES ON THIS SHEET ARE TO BE APPLIED TO ALL OTHER DRAWINGS IN

THIS SET.THE SYMBOLS AND ABBREVIATIONS SHOWN ON THIS SHEET MAY OR MAY NOT BE

USED IN THIS SET OF DRAWINGS.

FVD

BYP

VARIABLE FREQUENCY DRIVE

(VFD) WITH MANUAL BYPASS

FAN

PUMP

PROJECT:

GENERAL MECHANICAL NOTES

1. PROVIDE ALL MATERIALS AND EQUIPMENT AND PERFORM ALL LABOR REQUIRED TO INSTALL COMPLETE

AND OPERABLE MECHANICAL SYSTEMS AS INDICATED ON THE DRAWINGS, AS SPECIFIED, AND AS

REQUIRED BY CODE.

2. VERIFY EXISTING CONDITIONS ON THE JOB SITE BEFORE BEGINNING ANY WORK. COORDINATE NEW

WORK WITH THE OWNER PRIOR TO COMMENCEMENT OF WORK. COMMENCEMENT OF WORK SIGNIFIES

ACCEPTANCE OF CONDITIONS.

3. CONTRACT DOCUMENT DRAWINGS ARE DIAGRAMMATIC AND ARE INTENDED TO CONVEY SCOPE AND

GENERAL ARRANGEMENT ONLY. PROVIDE ADDITIONAL DUCTWORK, PIPING, AND THEIR FITTINGS.

4. MAINTAIN CLEAR ACCESS TO SERVICE EQUIPMENT AND OTHER ACCESSORIES REQUIRING SERVICE,

VISUAL INSPECTION OR HAND OPERATION. WHERE INDICATED OR REQUIRED, PROVIDE ACCESS PANELS

OF THE TYPE SELECTED TO SUIT MATERIALS IN WHICH INSTALLED.

5. ADJUST DUCTWORK SIZES TO PROPERLY CONNECT TO MECHANICAL EQUIPMENT.

6. LOCATIONS, DUCTWORK, PIPING, AND EQUIPMENT AS INDICATED ON THE DRAWING, ARE APPROXIMATE

AND SUBJECT TO MINOR ADJUSTMENTS IN THE FIELD. WORK SHALL BE COORDINATED WITH ALL OTHER

TRADES TO AVOID INTERFERENCE IN THE FIELD.

7. INSTALL ALL MECHANICAL EQUIPMENT AND APPURTENANCES IN ACCORDANCE WITH WRITTEN

MANUFACTURERS' RECOMMENDATIONS, CONTRACT DOCUMENTS, AND APPLICABLE CODES AND

REGULATIONS.

8. ALL CONTROL WIRE AND CONDUIT SHALL COMPLY WITH THE NATIONAL ELECTRIC CODE AND

ELECTRICAL SPECIFICATIONS.

9. ALL PRESSURES LISTED ARE GAUGE UNLESS OTHERWISE NOTED.

10. PRIOR TO STARTING WORK, SUBMIT SHOP DRAWINGS AND SUBMITTALS FOR ALL MECHANICAL

EQUIPMENT, DUCTWORK, DAMPERS, PIPING, PIPING FITTINGS, VALVES, INSULATION, PIPING AND

DUCTWORK SUPPORTS, AND CONTROLS.

11. CONTRACTOR SHALL OBTAIN AND PAY FOR ALL NECESSARY PERMITS AND SHALL ARRANGE FOR ALL

REQUIRED INSPECTIONS.

12. PROVIDE ONE YEAR WARRANTY FOR ALL WORKMANSHIP AND MATERIALS AFTER THE DATE OF FINAL

ACCEPTANCE. REFER TO MECHANICAL SPECIFICATIONS FOR EQUIPMENT EXTENDED WARRANTY

REQUIREMENTS.

13. FINAL PRODUCT SHALL BE A COMPLETE AND FUNCTIONING SYSTEM, AND SHALL CONFORM TO ALL

REQUIREMENTS OF APPLICABLE FEDERAL, STATE, AND LOCAL CODES.

14. MECHANICAL CONTRACTOR SHALL COORDINATE ALL HVAC EQUIPMENT (VOLTAGE, PHASE, ETC.) WITH

THE ELECTRICAL CONTRACTOR PRIOR TO ORDER OF ANY MECHANICAL EQUIPMENT. MECHANICAL

CONTRACTOR SHALL BE RESPONSIBLE FOR ANY MISMATCH BETWEEN MECHANICAL EQUIPMENT,

ELECTRICAL REQUIREMENTS AND THE ELECTRICAL SERVICE, AS DESIGNED. MECHANICAL AND

ELECTRICAL COORDINATION STATEMENTS SHALL BE INCLUDED WITH EQUIPMENT SUBMITTALS AND

ELECTRICAL REQUIREMENTS AND THE ELECTRICAL SERVICE, AS DESIGNED. MECHANICAL AND

ELECTRICAL COORDINATION STATEMENTS SHALL BE INCLUDED WITH EQUIPMENT SUBMITTALS AND

SHOP DRAWINGS.

15. THE MECHANICAL CONTRACTOR SHALL PROVIDE FULL SUPPORT TO THE COMMISSIONING AGENT

THROUGHOUT ALL PHASES OF THE COMMISSIONING PROCESS INCLUDING PREPARATION, FUNCTIONAL

TESTING, DOCUMENTATION, AND RESOLUTION OF DEFICIENCIES.

APPLICABLE CODES

2022 BUILDING CODE OF CONNECTICUT

2021 FIRE CODE OF CONNECTICUT

2022 MECHANICAL CODE OF CONNECTICUT

2022 ENERGY CONSERVATION CONSTRUCTION CODE OF CONNECTICUT

2022 PLUMBING CODE OF CONNECTICUT

2022 EXISTING BUILDING CODE OF CONNECTICUT

APPLICABLE LOCAL LAWS AND CODES

HVAC ENERGY CODE COMPLIANCE

MECHANICAL DESIGN COMPLIES WITH THE FOLLOWING SECTIONS OF

THE 2022 ENERGY CONSERVATION CONSTRUCTION CODE OF CONNECTICUT:

1. C403.1.1

2. C403.2.2

3. C403.3.1

4. C403.3.2

5. C403.4.1

6. C403.12.2.1

7. C403.12.3

8. C403.12.3.1

Edward L. Smith

Library HVAC

Replacement

3 Old Post Road

Northford, CT

06472

MEP/FP ENGINEERS:

919 Middle Street

Middletown, CT

06457

(860) 635-7740

www.aiengineers.com

DISCLAIMER:

THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION

BELONGING TO AI ENGINEERS OR ITS AFFILIATED

COMPANIES AND SHALL BE USED ONLY FOR THE

PURPOSE FOR WHICH IT WAS SUPPLIED. IT SHALL NOT BE

COPIED, REPRODUCED OR OTHERWISE USED, NOR SHALL

SUCH INFORMATION BE FURNISHED IN WHOLE OR IN PART

TO OTHERS EXCEPT IN ACCORDANCE WITH THE TERMS

OF ANY AGREEMENT UNDER WHICH IT WAS SUPPLIED, OR

WITH THE PRIOR WRITTEN CONSENT OF AI ENGINEERS,

AND SHALL BE RETURNED UPON REQUEST.

ISSUANCE:

# DATE

1 01-16-26

DESCRIPTION

BID DOCUMENTS

LOCATION PLAN

N NOT TO SCALE

CONSTRUCTION

STAGE AREA

SEAL:

DRAWING TITLE:

MECHANICAL NOTES,

SYMBOLS, AND

ABBREVIATIONS

DATE: 01-16-25

DRAWN BY: HB

CHECKED BY: OA

SCALE:

NTS

JOB #:

4465

DRAWING #:

M001

EXISTING 1 1/4" C

UP TO REMAIN

MECHANICAL DEMOLITION WORK GENERAL NOTES:

1. LOCATION AND QUANTITIES OF EQUIPMENT IS BASED ON THE BEST AVAILABLE INFORMATION AT TIME OF DESIGN. THE DEMOLITION WORK SHALL

INCLUDE PROVIDING ALL MATERIALS AND LABOR FOR EXTENSIONS, CONNECTIONS, CUTTING, PATCHING, REPAIRING, ELECTRICAL WORK, AND

TEMPORARY CONNECTIONS REQUIRED TO MAINTAIN SERVICE PENDING THE COMPLETION OF THE PERMANENT WORK. NOTES AND GRAPHIC

REPRESENTATION SHALL NOT LIMIT THE EXTENT OF DEMOLITION REQUIRED. EXTENT OF THE DEMOLITION WORK SHALL BE COORDINATED WITH

OWNER AND ENGINEER. THE CONTRACTOR IS RESPONSIBLE FOR FIELD VERIFYING ALL EXISTING CONDITIONS PRIOR TO THE SUBMISSION OF HIS BID.

2. DEMOLITION WORK SHALL NOT AFFECT OPERATION OF ANY EXISTING BUILDING SYSTEMS, BUT IF ANY EXISTING WORK REQUIRED TO REMAIN BUT

INTERFERING WITH NEW WORK SHALL BE RELOCATED AND RECONNECTED USING LIKE MATERIALS AND METHODS OF THE EXISTING SERVICE AND

SHALL CONFORM TO CONTRACT DOCUMENTS. COORDINATE DEMOLITION WORK AND SHUT DOWN OF THE EXISTING HVAC SYSTEMS WITH ALL TRADES,

UTILITY COMPANIES, AND THE OWNER 10 BUSINESS DAYS PRIOR TO COMMENCEMENT OF WORK.

3. PROTECT THE INTEGRITY OF ALL ITEMS THAT ARE INDICATED TO REMAIN. WHERE ITEMS THAT ARE INDICATED TO REMAIN ARE NOT IN PROPER

WORKING ORDER PRIOR THE START OF NEW WORK, REPORT ANY ISSUES IMMEDIATELY TO THE ENGINEER OF RECORD AND THE OWNER'S

REPRESENTATIVE.

4. EXECUTE DEMOLITION IN A SAFE MANNER. EGRESS, EXITS AND FIRE PROTECTION EQUIPMENT REQUIREMENTS SHALL BE MAINTAINED. COVER ALL

FIRE ALARM DEVICES DURING CONSTRUCTION HOURS THEN AT END OF EACH WORKING DAY UNCOVER AND CLEAN THEM.

5. MAKE SAFE ANY UNPROTECTED, EXPOSED ELECTRICAL WIRING AT A POINT OF DEMOLITION. CAPS SHALL BE AIRTIGHT OR WATERTIGHT DEPENDING

ON TYPE OF SERVICE.

6. RESTORE EXISTING FIREPROOFING DUE TO DEMOLITION SCOPE OF WORK.

7. DEMOLITION MATERIALS REQUIRED TO BE TURNED OVER TO THE OWNER SHALL BE PLACED IN A MUTUALLY ACCEPTABLE LOCATION COORDINATED

WITH THE OWNER'S REPRESENTATIVE. OTHERWISE, THE DEMOLITION MATERIALS INCLUDING REFRIGERANT, SHALL BE REMOVED FROM THE BUILDING

AND DISPOSED IN ACCORDANCE WITH APPLICABLE LAWS AND ENVIRONMENTAL REGULATIONS. MATERIALS SHALL BE REMOVED FROM THE BUILDING

AFTER REGULAR BUSINESS HOURS AND SHALL BE TAKEN OFF-SITE NO LATER THAN THE START OF THE NEXT BUSINESS DAY. DEBRIS SHALL NOT BE

ALLOWED TO ACCUMULATE ON THE SITE. MECHANICAL ROOMS SHALL BE SWEPT CLEANED EACH DAY. DUST OR DEBRIS SHALL NOT BE PERMITTED TO

ENTER EXISTING FLOOR DRAINS AND SPACES ADJACENT TO MECHANICAL ROOMS.

8. CONTRACTOR SHALL PROVIDE A SUBMITTED PLAN TO PROTECT EXISTING MEP SYSTEMS/EQUIPMENT, WALLS, CEILINGS, CARPETS, FLOORS,

FURNITURE, IT EQUIPMENT AND BOOKS DURING CONSTRUCTION FOR OWNER APPROVAL.

9. PATCH WALL TO MATCH EXISTING CONDITIONS WHERE EXISTING WIRED CONTROLLERS ARE REMOVED AND NEW WIRED CONTROLLERS NOT BE

INSTALLED IN SAME LOCATION.

EXISTING FIRE

DAMPER TO

REMAIN, TYPICAL

EXISTING 1" C

DOWN TO

JANITOR SINK

TO REMAIN

EXISTING 8X20 O/A UP

AND FIRE DAMPER TO

REMAIN. REMOVE DUCT

6" BELOW UPPER FLOOR.

CRAWL SPACE

B-15

REMOVE EXISTING 6

HEAT PUMP HP-8

REMOVE EXISTING 1" C

AND WYE FITTING

CONNECTING

EXISTING 6X8 E/A

UP TO REMAIN

CONDENSATE TO SINK

DRAIN

EXISTING 8X4 E/A

STOBR-A03GE

18X6 R/A

STORY AREA

B-04

WC

10

27

WC

TO REMAIN

11

27

DATA/STORAGE

B-11

T 15

FD

18X6 S/A

FD

27

EXISTING 10X6

19

DIFFUSER AND FIRE

DAMPER TO REMAIN.

CAP DUCTWORK.

MEN'S

ROOM

B-13 27

18X6 S/A

WOMEN'S

ROOM

B-14

27

PASSAGE

27

10X6

S/A

23

121X06X6S/SA/A

10X6 S/A

CO2 16

14

OFBF-I0C2E

8X4 S/A DN.

CIRCULATION DESK

27

FD

B-12

B-01

FD

FD

27

15

8

27

ELEV.

MACH.

ROOM FD

B-09

FD

FD

FD FD

27 27

7

JANITOR ROOM

B-08

21

25

13

WC

ERU-4

9

EF-3

24

STACK AREA

B-07

23

27

STACK AREA27

B-06

27

23

23

23

EXISTING TRANSFER AIR

GRILLES AND FIRE DAMPER

TO REMAIN, TYPICAL

23

12

WC

4 HP-4

23

DU-2

22

23

ELEV.

EXISTING 1 1/4"

C UP TO REMAIN

5 HP-3

1" C

23

HP-5

T

23

1" C

3

11/4" C

COND-1

26 28 CAP

1 1/4 " C

18

1 1/4 " C

20

20

20

HP-6 2

1" C

EXISTING 1 1/4" C

UP TO REMAIN

STAIR

105

23

COND-2

29

26

30

CAP

27

12Φ E/A

10X10 E/A

27

30

EXISTING 1 1/4" C

UP TO REMAIN

EXISTING E/A

LOUVER TO REMAIN

EXISTING BUILDING COLUMN

ENCLOSURE TO REMAIN, TYPICAL

MECHANICAL DEMO WORK KEY NOTES

1 REMOVE EXISTING CEILING CASSETTE UNIT HP-7 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING WITH SUPPORT.

2

REMOVE EXISTING O/A DUCTED HEAT PUMP UNIT HP-6 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING WITH SUPPORT.

REMOVE EXISTING O/A DUCTED HEAT PUMP UNIT HP-5 WITH SUPPORT, DUCTWORK, CONDENSATE

3 PIPING AND CONTROL WIRING WITH SUPPORT.

REMOVE EXISTING O/A DUCTED HEAT PUMP UNIT HP-4 WITH SUPPORT, DUCTWORK, CONDENSATE

4 PIPING AND CONTROL WIRING WITH SUPPORT.

5

REMOVE EXISTING O/A DUCTED HEAT PUMP UNIT HP-3 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING WITH SUPPORT.

6

REMOVE EXISTING O/A DUCTED HEAT PUMP UNIT HP-8 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING WITH SUPPORT.

7 REMOVE EXISTING WALL-MOUNTED CASSETTE UNIT HP-1 WITH SUPPORT, DUCTWORK,

CONDENSATE PIPING AND CONTROL WIRING WITH SUPPORT.

1

HP-7

8 REMOVE EXISTING WALL-MOUNTED CASSETTE UNIT HP-2 WITH SUPPORT, DUCTWORK,

CONDENSATE PIPING AND CONTROL WIRING WITH SUPPORT.

9 REMOVE EXISTING ERU-4 WITH SUPPORT, DUCTWORK, CONTROL WIRING AND ACCESSORIES WITH

SUPPORT.

1" C

READING AREA

B-05

17 EWH-1

10

REMOVE EXISTING WIRED CONTROLLER WITH CONTROL WIRING SERVING HP-8 AND SUPPORT.

INSTALL 316 SS PLATE #4 FINISH IN PLACE OF SENSOR.

11 REMOVE EXISTING WIRED CONTROLLER WITH CONTROL WIRING SERVING HP-6 AND HP-7 AND

SUPPORT. INSTALL 316 SS PLATE #4 FINISH IN PLACE OF SENSOR.

12 REMOVE EXISTING WIRED CONTROLLER WITH CONTROL WIRING SERVING HP-3, HP-4, AND HP-5

AND SUPPORT. INSTALL 316 SS PLATE #4 FINISH IN PLACE OF SENSOR.

13 REMOVE EXISTING WIRED CONTROLLER WITH CONTROL WIRING SERVING HP-1 AND HP-2 AND

SUPPORT. INSTALL 316 SS PLATE #4 FINISH IN PLACE OF SENSOR.

EXISTING 1 1/4" C

UP TO REMAIN

14 REMOVE EXISTING ERU-4 CO2 SENSOR WITH CONTROL WIRING WITH SUPPORT.

15 REMOVE EXISTING ELECTRIC DUCT HEATER IN ITS ENTIRETY WITH SUPPORT, THERMOSTAT, AND

CONTROL WIRING.

16 REMOVE EXISTING ERU-4 WIRED CONTROLLER WITH CONTROL WIRING. INSTALL 316 SS PLATE #4

FINISH IN PLACE OF SENSOR.

17 REMOVE EXISTING ELECTRIC WALL HEATER EWH-1. EXISTING BACKBOX AND SUPPORT TO REMAIN.

18 REMOVE EXISTING ELECTRIC WALL HEATER EWH-2. EXISTING BACKBOX AND SUPPORT TO REMAIN.

19 REMOVE EXISTING ELECTRIC WALL HEATER EWH-6. EXISTING BACKBOX AND SUPPORT TO REMAIN.

20 REMOVE EXISTING RADIANT CEILING PANEL WITH CONTROL WIRING AND SUPPORT.

21 REMOVE EXISTING ELECTRIC WALL HEATER EWH-3. EXISTING BACKBOX AND SUPPORT TO REMAIN.

22 REMOVE EXISTING BRANCH SELECTOR UNIT DU-2 WITH SUPPORT, CONDENSATE PIPING AND

CONTROL WIRING WITH SUPPORT.

REMOVE EXISTING REFRIGERANT SUCTION AND REFRIGERANT LIQUID PIPING WITH SUPPORTS.

23 NOTE: EACH DASHED DEMO LINE REPRESENTS TWO EXISTING PIPING LINES.

24 REMOVE EXISTING EXHAUST FAN EF-3, EXHAUST FAN SUPPORT, CONTROL WIRING AND

DUCTWORK WITH SUPPORT.

25 REMOVE EXISTING ACCESS PANEL TO CRAWL SPACE WITH FRAME.

26 REMOVE EXISTING CONCRETE PAD, CONDENSING UNIT, PIPING AND WIRING WITH SUPPORT.

27 EXISTING DUCTWORK TO REMAIN.

28 REMOVE EXISTING CONDENSING UNIT COND-1 WITH REFRIGERANT PIPING, CONTROL, CONTROL

WIRING, AND SUPPORT.

29 REMOVE EXISTING CONDENSING UNIT COND-2 WITH REFRIGERANT PIPING, CONTROL, CONTROL

WIRING, AND SUPPORT.

30 REMOVE, CLEAN AND STORE EXISTING EQUIPMENT SCREEN FOR REINSTALLATION.

PROJECT:

Edward L. Smith

Library HVAC

Replacement

3 Old Post Road

Northford, CT

06472

MEP/FP ENGINEERS:

919 Middle Street

Middletown, CT

06457

(860) 635-7740

www.aiengineers.com

DISCLAIMER:

THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION

BELONGING TO AI ENGINEERS OR ITS AFFILIATED

COMPANIES AND SHALL BE USED ONLY FOR THE

PURPOSE FOR WHICH IT WAS SUPPLIED. IT SHALL NOT BE

COPIED, REPRODUCED OR OTHERWISE USED, NOR SHALL

SUCH INFORMATION BE FURNISHED IN WHOLE OR IN PART

TO OTHERS EXCEPT IN ACCORDANCE WITH THE TERMS

OF ANY AGREEMENT UNDER WHICH IT WAS SUPPLIED, OR

WITH THE PRIOR WRITTEN CONSENT OF AI ENGINEERS,

AND SHALL BE RETURNED UPON REQUEST.

ISSUANCE:

# DATE

1 01-16-26

DESCRIPTION

BID DOCUMENTS

SEAL:

DRAWING TITLE:

MECHANICAL

LOWER LEVEL PLAN -

DEMOLITION WORK

DATE: 01-16-25

DRAWN BY: HB

CHECKED BY: OA

SCALE:

AS NOTED

JOB #:

4465

DRAWING #:

MD101

1-1/4"C DN TO

REMAIN

EXISTING ACCESS

DOOR TO ATTIC TO

REMAIN

EXISTING E/A

LOUVER TO

REMAIN

MECHANICAL DEMOLITION WORK GENERAL NOTES:

PROJECT:

1. LOCATION AND QUANTITIES OF EQUIPMENT IS BASED ON THE BEST AVAILABLE INFORMATION AT TIME OF DESIGN. THE DEMOLITION WORK SHALL

INCLUDE PROVIDING ALL MATERIALS AND LABOR FOR EXTENSIONS, CONNECTIONS, CUTTING, PATCHING, REPAIRING, ELECTRICAL WORK, AND

TEMPORARY CONNECTIONS REQUIRED TO MAINTAIN SERVICE PENDING THE COMPLETION OF THE PERMANENT WORK. NOTES AND GRAPHIC

REPRESENTATION SHALL NOT LIMIT THE EXTENT OF DEMOLITION REQUIRED. EXTENT OF THE DEMOLITION WORK SHALL BE COORDINATED WITH

OWNER AND ENGINEER. THE CONTRACTOR IS RESPONSIBLE FOR FIELD VERIFYING ALL EXISTING CONDITIONS PRIOR TO THE SUBMISSION OF HIS BID.

2. DEMOLITION WORK SHALL NOT AFFECT OPERATION OF ANY EXISTING BUILDING SYSTEMS, BUT IF ANY EXISTING WORK REQUIRED TO REMAIN BUT

INTERFERING WITH NEW WORK SHALL BE RELOCATED AND RECONNECTED USING LIKE MATERIALS AND METHODS OF THE EXISTING SERVICE AND

SHALL CONFORM TO CONTRACT DOCUMENTS. COORDINATE DEMOLITION WORK AND SHUT DOWN OF THE EXISTING HVAC SYSTEMS WITH ALL TRADES,

UTILITY COMPANIES, AND THE OWNER 10 BUSINESS DAYS PRIOR TO COMMENCEMENT OF WORK.

3. PROTECT THE INTEGRITY OF ALL ITEMS THAT ARE INDICATED TO REMAIN. WHERE ITEMS THAT ARE INDICATED TO REMAIN ARE NOT IN PROPER

WORKING ORDER PRIOR THE START OF NEW WORK, REPORT ANY ISSUES IMMEDIATELY TO THE ENGINEER OF RECORD AND THE OWNER'S

REPRESENTATIVE.

4. EXECUTE DEMOLITION IN A SAFE MANNER. EGRESS, EXITS AND FIRE PROTECTION EQUIPMENT REQUIREMENTS SHALL BE MAINTAINED. COVER ALL

FIRE ALARM DEVICES DURING CONSTRUCTION HOURS THEN AT END OF EACH WORKING DAY UNCOVER AND CLEAN THEM.

5. MAKE SAFE ANY UNPROTECTED, EXPOSED ELECTRICAL CONTROL WIRING AT A POINT OF DEMOLITION. CAPS SHALL BE AIRTIGHT OR WATERTIGHT

DEPENDING ON TYPE OF SERVICE.

6. RESTORE EXISTING FIREPROOFING DUE TO DEMOLITION SCOPE OF WORK.

7. DEMOLITION MATERIALS REQUIRED TO BE TURNED OVER TO THE OWNER SHALL BE PLACED IN A MUTUALLY ACCEPTABLE LOCATION COORDINATED

WITH THE OWNER'S REPRESENTATIVE. OTHERWISE, THE DEMOLITION MATERIALS INCLUDING REFRIGERANT, SHALL BE REMOVED FROM THE BUILDING

AND DISPOSED IN ACCORDANCE WITH APPLICABLE LAWS AND ENVIRONMENTAL REGULATIONS. MATERIALS SHALL BE REMOVED FROM THE BUILDING

AFTER REGULAR BUSINESS HOURS AND SHALL BE TAKEN OFF-SITE NO LATER THAN THE START OF THE NEXT BUSINESS DAY. DEBRIS SHALL NOT BE

ALLOWED TO ACCUMULATE ON THE SITE. MECHANICAL ROOMS SHALL BE SWEPT CLEANED EACH DAY. DUST OR DEBRIS SHALL NOT BE PERMITTED TO

ENTER EXISTING FLOOR DRAINS AND SPACES ADJACENT TO MECHANICAL ROOMS.

Edward L. Smith

Library HVAC

Replacement

3 Old Post Road

Northford, CT

06472

MEP/FP ENGINEERS:

8. CONTRACTOR SHALL PROVIDE A SUBMITTED PLAN TO PROTECT EXISTING MEP SYSTEMS/EQUIPMENT, WALLS, CEILINGS, CARPETS, FLOORS,

FURNITURE, IT EQUIPMENT AND BOOKS DURING CONSTRUCTION FOR OWNER APPROVAL.

9. PATCH WALL TO MATCH EXISTING CONDITIONS WHERE EXISTING WIRED CONTROLLERS ARE REMOVED AND NEW WIRED CONTROLLERS NOT BE

INSTALLED IN SAME LOCATION.

MECHANICAL DEMO WORK KEY NOTES

8X20 O/A DN

TO REMAIN

16

10X4

16

1

HP-9

2

ERU-3

1"C

16

18X6

EXISTING E/A LOUVER

TO REMAIN

REMOVE EXISTING 1"C DN

AND WYE FITTING

CONNECTING CONDENSATE

TO SINK DRAIN

6

BREAK

ROOM

112

16

10X6

8

WC

16

12X5 EF-2

33

12X5

16

STORAGE

113

HP-11

18X8

9

18X6

16

7T

WC CO2

8X6

10

6 LIBRARIAN

11

OFFICE

111

ADULT

31

CIRCULATION

111

MEN

115

16

12

8X6

16

EF-3 32

WOMEN

114

12

16

HP-13

14

COMMUNITY

ROOM

102

13

31

VESTIBULE

101

ADULT FICTION

106

14

14

HP-18

15

17

WWCCCOC1O272

CIRCULATION DESK

B-01

HP-15

25

31

14

T

6"Ø

16

1" C

12X6

16

12X6HP-17

16

16

14X6

STACK

AREA

104

14X6

16

16

EXISTING 1 1/4" C

DN. TO REMAIN

OFFICE

103

18

WC

19

1"C

20

12X6

EXISTING O/A

LOUVER TO REMAIN

WC

21

8"Ø

24

HP-16

31

1"C

ERU-1

12X6

12X6

ERU-2

23

22

12X6

SEMINAR

116

CAP

CAP

16

5

10X6

COPY

AREA

109

16

4

20X8

WC

16X6

18X6

10"Ø

16

31

31

14X6

16

ELEV.

30

12X6

1"C

28 HP-12

29

14

WC

T

31

31

STACK

AREA

107

27

DU-1

1-1/4" C

3

HP-10

16

1"C

ADULT

READING/

REFERENCE

108

16

16

18X6

EXISTING

1-1/4" C DN TO

REMAIN

31

14

14

CAP

EXISTING O/A

LOUVER TO REMAIN

EXISTING BUILDING COLUMN

ENCLOSURE TO REMAIN

CAP PIPING AT WALL AND

ABANDON EXISTING RS & RL

PIPING RISERS IN PLACE

HP2-164

STAIR

105

31

CAP

14

1 1/4" C

EXISTING 1" C DN

31

TO REMAIN

EXISTING 1 1/4" C

DN TO REMAIN

EXISTING E/A

LOUVER TO REMAIN

1 REMOVE EXISTING CEILING CASSETTE UNIT HP-9 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING WITH SUPPORT.

2 REMOVE EXISTING ERU-3 WITH SUPPORT, DUCTWORK, CONTROL WIRING AND ACCESSORIES

WITH SUPPORT.

3 REMOVE EXISTING CEILING CASSETTE UNIT HP-10 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING WITH SUPPORT.

4 REMOVE EXISTING WIRED CONTROLLERS WITH CONTROL WIRING WITH SUPPORT FOR HP-9 AND

HP-10. INSTALL 316 SS PLATE #4 FINISH IN PLACE OF CONTROLLERS.

5 REMOVE EXISTING ELECTRIC WALL HEATER EWH-5 AND SUPPORT.

6 REMOVE EXISTING 1.5kW ELECTRIC BASEBOARD RADIATOR WITH SUPPORT.

7 REMOVE EXISTING THERMOSTAT AND CONTROL WIRING AND SUPPORT. INSTALL 316 SS PLATE

#4 FINISH IN PLACE OF THERMOSTAT.

8 REMOVE EXISTING WIRED CONTROLLER WITH CONTROL WIRING FOR HP-11. INSTALL 316 SS

PLATE #4 FINISH IN PLACE OF CONTROLLER.

9 REMOVE EXISTING O/A DUCTED HEAT PUMP UNIT HP-11 WITH SUPPORT, DUCTWORK,

CONDENSATE PIPING AND CONTROL WIRING WITH SUPPORT.

10 REMOVE EXISTING THERMOSTAT AND CO2 SENSOR WITH CONTROL WIRING AND SUPPORT.

INSTALL 316 SS PLATE #4 FINISH IN PLACE OF SENSORS.

11

REMOVE EXISTING ERU FILTER SENSORS WITH CONTROL WIRING AND SUPPORT. INSTALL 316 SS

PLATE #4 FINISH IN PLACE OF SENSORS.

12 REMOVE EXISTING 750W ELECTRIC BASEBOARD RADIATION.

13 REMOVE EXISTING ELECTRIC WALL HEATER EWH-4 AND SUPPORT.

14 REMOVE EXISTING RADIANT CEILING PANEL WITH THERMOSTAT, CONTROL WIRING AND

SUPPORT. INSTALL 316 SS PLATE #4 FINISH IN PLACE OF SENSORS.

REMOVE EXISTING CEILING CASSETTE UNIT HP-18 WITH SUPPORT, CONDENSATE PIPING AND

15 CONTROL WIRING WITH SUPPORT.

16 EXISTING DUCTWORK TO REMAIN.

17 REMOVE EXISTING WIRED CONTROLLER, CO2 SENSOR AND CONTROL WIRING.

18 REMOVE EXISTING WIRED CONTROLLER AND CONTROL WIRING WITH SUPPORT FOR HP-17.

19 REMOVE EXISTING CEILING CASSETTE UNIT HP-17 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING AND SUPPORT.

20 REMOVE EXISTING ERU-1 WITH SUPPORT, DUCTWORK, CONTROL WIRING AND ACCESSORIES

WITH SUPPORT.

21 REMOVE EXISTING WIRED CONTROLLER AND CONTROL WIRING FOR HP-16 AND SUPPORT.

INSTALL 316 SS PLATE #4 FINISH IN PLACE OF CONTROLLER.

22 REMOVE EXISTING ERU-2 WITH SUPPORT, DUCTWORK, CONTROL WIRING AND ACCESSORIES

WITH SUPPORT.

23 REMOVE EXISTING 1.5kW ELECTRIC BASEBOARD RADIATION.

24 REMOVE EXISTING CEILING CASSETTE UNIT HP-16 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING WITH SUPPORT.

25 REMOVE EXISTING CEILING CASSETTE UNIT HP-15 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING WITH SUPPORT.

919 Middle Street

Middletown, CT

06457

(860) 635-7740

www.aiengineers.com

DISCLAIMER:

THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION

BELONGING TO AI ENGINEERS OR ITS AFFILIATED

COMPANIES AND SHALL BE USED ONLY FOR THE

PURPOSE FOR WHICH IT WAS SUPPLIED. IT SHALL NOT BE

COPIED, REPRODUCED OR OTHERWISE USED, NOR SHALL

SUCH INFORMATION BE FURNISHED IN WHOLE OR IN PART

TO OTHERS EXCEPT IN ACCORDANCE WITH THE TERMS

OF ANY AGREEMENT UNDER WHICH IT WAS SUPPLIED, OR

WITH THE PRIOR WRITTEN CONSENT OF AI ENGINEERS,

AND SHALL BE RETURNED UPON REQUEST.

ISSUANCE:

# DATE

1 01-16-26

DESCRIPTION

BID DOCUMENTS

SEAL:

26 REMOVE EXISTING CEILING CASSETTE UNIT HP-14 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING WITH SUPPORT.

27 REMOVE EXISTING BRANCH SELECTOR UNIT DU-1 WITH SUPPORT, CONDENSATE PIPING AND

CONTROL WIRING WITH SUPPORT.

28 REMOVE EXISTING CEILING CASSETTE UNIT HP-12 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING.

29 REMOVE EXISTING WIRED CONTROLLERS WITH SUPPORT AND CONTROL WIRING FOR HP-12 AND

HP-13. INSTALL 316 SS PLATE #4 FINISH IN PLACE OF CONTROLLERS.

30

REMOVE EXISTING CEILING CASSETTE UNIT HP-13 WITH SUPPORT, DUCTWORK, CONDENSATE

PIPING AND CONTROL WIRING.

31 REMOVE EXISTING REFRIGERANT SUCTION AND REFRIGERANT LIQUID PIPING WITH SUPPORTS.

NOTE: EACH DASHED DEMO LINE REPRESENTS TWO EXISTING PIPING LINES.

DRAWING TITLE:

MECHANICAL

UPPER LEVEL PLAN -

DEMOLITION WORK

32 REMOVE EXISTING EXHAUST FAN EF-1, EXHAUST FAN SUPPORT, CONTROL WIRING AND

DUCTWORK WITH SUPPORT.

33 REMOVE EXISTING EXHAUST FAN EF-2, EXHAUST FAN SUPPORT, CONTROL WIRING AND

DUCTWORK WITH SUPPORT.

DATE: 01-16-25

DRAWN BY: HB

CHECKED BY: OA

SCALE:

AS NOTED

JOB #:

4465

DRAWING #:

MD102

PROJECT:

MECHANICAL NEW WORK GENERAL NOTES:

MECHANICAL NEW WORK KEY NOTES

1. BEFORE SUBMITTING THE BID, THE CONTRACTORS SHALL VISIT THE JOB SITE AND BECOME FULLY FAMILIAR WITH THE EXISTING CONDITIONS AND THE

DOCUMENTS OF OTHER TRADES UNDER WHICH HIS WORK WILL BE ACCOMPLISHED. THE CONTRACTOR SHALL BE HELD RESPONSIBLE FOR ANY

ASSUMPTIONS, OMISSIONS OR ERRORS HE MADE AS A RESULT OF FAILURE TO BECOME FAMILIAR WITH THE EXISTING CONDITIONS.

2. THIS DRAWING IS DIAGRAMMATIC IN NATURE AND SHALL NOT BE SCALED TO DETERMINE THE EXACT LOCATION OR EXTENT OF THE WORK. EXACT PIPING

AND DUCTWORK ROUTING, DUCTWORK AND PIPING LENGTHS TO BE VERIFIED IN FIELD.THE CONTRACTOR SHALL VERIFY ALL EXISTING CONDITIONS

PRIOR TO THE START OF THE NEW WORK. COORDINATE NEW WORK SCOPE OF WORK WITH ALL TRADES, DEMOLITION SCOPE OF WORK AND THE OWNER.

3. IF ANY EXISTING WORK REQUIRED TO REMAIN BUT INTERFERING WITH NEW WORK SHALL BE RELOCATED AND RECONNECTED USING LIKE MATERIALS

AND METHODS OF THE EXISTING SERVICE AND SHALL CONFORM TO CONTRACT DOCUMENTS. THE CONTRACTOR SHOULD INCLUDE ALL NECESSARY

PREMIUM TIME TO PERFORM NEW WORK IN HIS BID. COORDINATE NEW WORK AND SHUT DOWN OF THE EXISTING HVAC SYSTEMS WITH ALL TRADES,

UTILITY COMPANY, AND THE OWNER TEN DAYS PRIOR TO COMMENCEMENT OF WORK.

4. CONTRACTOR SHALL BE RESPONSIBLE TO PROVIDE COMPLETE AND FULLY OPERATIONAL HVAC SYSTEMS.

5. INSTALL, SUPPORT & BRACE NEW DUCTWORK AND ACCESSORIES PER SMACNA GUIDELINES.

6. INSTALL EQUIPMENT IN STRICT ACCORDANCE WITH WRITTEN MANUFACTURER'S RECOMMENDATIONS.

7. PROVIDE REQUIRED ACCESS & CLEARANCES AROUND ALL EQUIPMENT IN STRICT ACCORDANCE WITH WRITTEN MANUFACTURER'S RECOMMENDATIONS.

8. CONTRACTOR SHALL ENGAGE A TESTING AND BALANCING FIRM CERTIFIED BY AABC TO PERFORM TESTING AND BALANCING PROCEDURES ON EACH

SYSTEM ACCORDING TO THE PROCEDURES AS CONTAINED IN AABC'S NATIONAL STANDARDS. PROVIDE THREE COPIES OF THE CERTIFIED TAB REPORTS.

9. COORDINATE DUCTWORK AND PIPING WITH EXISTING CONDITIONS AND ELECTRICAL PANELS AND CONDUITS.

10.PROVIDE FIREPROOFING AT PIPING AND DUCTWORK PENETRATIONS THROUGH FIRE RATED WALLS. RESTORE EXISTING FIREPROOFING TO ORIGINAL

CONDITIONS.

11.MAINTAIN A MINIMUM DISTANCE OF 10'-0" BETWEEN EXHAUST AIR, ALL PLUMBING VENTS AND MECHANICAL AIR INTAKES.

12.REFER TO PIPING AND DUCTWORK DETAILS AND SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS.

13.PIPING SHALL NOT BE INSTALLED ABOVE VFDS.

14.PROVIDE SEISMIC RESTRAINT FOR SPECIFIED EQUIPMENT AND PIPING PER SPECIFICATION SECTION 230548 REQUIREMENTS.

15.EXECUTE NEW WORK IN A SAFE MANNER. EGRESS, EXITS AND FIRE PROTECTION EQUIPMENT REQUIREMENTS SHALL BE MAINTAINED. COVER ALL FIRE

ALARM DEVICES DURING CONSTRUCTION HOURS THEN AT END OF EACH WORKING DAY, UNCOVER AND CLEAN THEM.

16.CONTRACTOR SHALL PROVIDE A SUBMITTED PLAN TO PROTECT EXISTING MEP SYSTEMS/EQUIPMENT, WALLS, CEILINGS, CARPETS, FLOORS, FURNITURE,

IT EQUIPMENT AND BOOKS DURING CONSTRUCTION FOR OWNER APPROVAL.

1 PROVIDE TYPE B1 LAY-IN DIFFUSER WITH 20 X 20 NECK FOR REFRIGERANT DISPERSAL IN THE EVENT OF A LEAK AT DU-1. COORDINATE DIFFUSER

PLACEMENT WITH EXISTING CONDITIONS AND THE INSTALLED LOCATION OF DU-1.

2 PROVIDE CONDENSING UNIT ACCU-1. PROVIDE CONCRETE PAD AND W21 GALVANIZED STEEL BEAM. REFER TO DWG M404 FOR ADDITIONAL INFO.

3 PROVIDE CONDENSING UNIT ACCU-2. PROVIDE CONCRETE PAD AND W21 GALVANIZED STEEL BEAM. REFER TO DWG M404 FOR ADDITIONAL INFO.

PROVIDE 12" W X 20" L X 3" H CONCRETE SPLASH BLOCK AND PITCH AWAY FROM BUILDING AND CONDENSING UNITS. REMOVE EXISTING 45 DEG SLOPED

4 FITTING WITH MESH SCREEN AND EXTEND CONDENSATE PIPING AS SHOWN TO SPLASH BLOCK. PROVIDE MESH SCREEN AT PIPING TERMINATION.

5 PROVIDE 1/2" RL, 1 1/8" RS, AND 7/8" HRR WITH SUPPORT.

6 PROVIDE 1/2" RL, 7/8" RS, AND 3/4" HRR WITH SUPPORT.

7 PROVIDE 1/2" RL, 1 1/8" RS, AND 1 1/8" HRR WITH SUPPORT.

8 PROVIDE 3/8" RL AND 5/8" RS WITH SUPPORT.

9 PROVIDE 1/4" RL AND 1/2" RS WITH SUPPORT.

10 PROVIDE EF-1 AND DUCT FLEXIBLE CONNECTIONS. PROVIDE GALVANIZED STEEL UNISTRUT TO SUPPORT EF-1 FROM EXISTING STRUCTURE. PROVIDE

REQUIRED SERVICE CLEARANCE TO EF-1.

11 PROVIDE WALL-MOUNTED HEAT PUMP UNIT HP-1 WITH MOUNTING PLATE, GALVANIZED STEEL SUPPORT, REFRIGERANT PIPING, CONDENSATE PIPING,

CONDENSATE PUMP WITH CONDENSATE DRAIN PAN, AND CONTROL WIRING. INSTALL CONDENSATE PUMP ON WALL NEXT TO HEAT PUMP. PROVIDE

REMOVABLE PVC (COLOR: WHITE) PUMP COVER, AFFIX TO WALL. INSTALL ALL PIPING IN EXISTING WALL CAVITY.

12 PROVIDE WALL-MOUNTED HEAT PUMP UNIT HP-2 WITH MOUNTING PLATE, GALVANIZED STEEL SUPPORT, REFRIGERANT PIPING, CONDENSATE PIPING,

CONDENSATE PUMP WITH CONDENSATE DRAIN PAN, AND CONTROL WIRING. INSTALL CONDENSATE PUMP ON WALL NEXT TO HEAT PUMP. PROVIDE

REMOVABLE PVC (COLOR: WHITE) PUMP COVER, AFFIX TO WALL. INSTALL ALL PIPING IN EXISTING WALL CAVITY.

13 PROVIDE O/A DUCTED HEAT PUMP UNIT HP-3 WITH REFRIGERANT PIPING, CONDENSATE PIPING, AND CONTROL WIRING. PROVIDE GALVANIZED STEEL

UNISTRUT SUPPORT.

14 PROVIDE O/A DUCTED HEAT PUMP UNIT HP-4 WITH REFRIGERANT PIPING, CONDENSATE PIPING, AND CONTROL WIRING. PROVIDE GALVANIZED STEEL

UNISTRUT SUPPORT.

Edward L. Smith

Library HVAC

Replacement

3 Old Post Road

Northford, CT

06472

MEP/FP ENGINEERS:

919 Middle Street

Middletown, CT

06457

(860) 635-7740

www.aiengineers.com

15 PROVIDE O/A DUCTED HEAT PUMP UNIT HP-5 WITH REFRIGERANT PIPING, CONDENSATE PIPING, AND CONTROL WIRING. PROVIDE GALVANIZED STEEL

UNISTRUT SUPPORT.

EXISTING 1" C

DOWN TO

JANITOR SINK

INSTALL EDH-1

CONTROL PANEL

PROVIDE CF-1

DATA/STORAGE

B-11

B-

10X6

120 CFM

41

FD

FD

120 CFM

41

EXISTING

6X8 E/A UP

T

FD

18X6 S/A

FD TO EDH-1

23

12X4 S/A

VD

FD EDH-1

FD 20

12

A 200

9X9

9

11

1

STACK AREA

B-07

PROVIDE

18X6 R/A

41 350 CFM

VD

8X6 S/A

STOBR-A0G3 E 18

36

WC 34

STORY AREA

B-04

EXISTING 8X4 E/A

41

80 CFM

120 CFM

MEN'S

WOMEN'S

ROOM

4110X6 S/A

ROOM

B-14

B-13

80 CFM

80 CFM

41 41

10X6 S/A

121X06XV6SD/SA/A

8X6 S/A

300 CFM

41

8X4 S/A DN.

18X6 S/A

PASSAGE

OFBF-I0C2E

1

CIRCULATION DESK

B-12

8

B-01

41

41

100

41

100

CFM

100

CFM

CFM

STACK AREA

8

B-06

26

9

1" C UP

WC30 TO HP-7

100

41 CFM

35

35

1 1/4" C

17

HP-7

1"C UP

1" C UP

8

TO HP-6

26

35 1 1/4" C

29

WC

16 HP-6

26

1 1/4" C

READING AREA

B-05

E2W1 H-1

T

16 PROVIDE O/A DUCTED HEAT PUMP UNIT HP-6 WITH REFRIGERANT PIPING, CONDENSATE PIPING, AND CONTROL WIRING. PROVIDE GALVANIZED STEEL

UNISTRUT SUPPORT.

17 PROVIDE HEAT PUMP UNIT HP-7 WITH REFRIGERANT PIPING, CONDENSATE PIPING, AND CONTROL WIRING. PROVIDE GALVANIZED STEEL UNISTRUT

SUPPORT.

18 PROVIDE O/A DUCTED HEAT PUMP UNIT HP-8 WITH DUCTWORK, DUCTWORK TRANSITIONS, DUCT FLEXIBLE CONNECTIONS, REFRIGERANT PIPING, AND

CONDENSATE PIPING. PROVIDE GALVANIZED STEEL UNISTRUT SUPPORT.

19 PROVIDE ERU-1. PROVIDE GALVANIZED STEEL UNISTRUT SUPPORT. PROVIDE REQUIRED SERVICE CLEARANCE TO ERU-1.

20 PROVIDE FIRE DAMPER AND ELECTRIC DUCT HEATER DEH-1 WITH REMOTE CONTROL PANEL AND SUPPORT.

21 PROVIDE ELECTRIC WALL HEATER EWH-1. REUSE EXISTING BACKBOX AND SUPPORT.

22 PROVIDE ELECTRIC WALL HEATER EWH-2. REUSE EXISTING BACKBOX AND SUPPORT.

23 PROVIDE ELECTRIC WALL HEATER EWH-6. REUSE EXISTING BACKBOX AND SUPPORT.

24 PROVIDE ELECTRIC RADIANT HEATING PANEL AND SUPPORT.

25 REINSTALL ACCESS PANEL TO CRAWL SPACE WITH FRAME AFTER START-UP OF ERU-1 AND EF-1.

26 REUSE EXISTING BEAM PENETRATIONS.

27 PROVIDE ELECTRIC WALL HEATER EWH-3. REUSE EXISTING BACKBOX AND SUPPORT.

28 PROVIDE BRANCH SELECTOR UNIT DU-1 AND SUPPORT. PROVIDE REQUIRED SERVICE CLEARANCE AS SHOWN.

29 PROVIDE WIRED CONTROLLER AND CONTROL WIRING FOR HP-6.

DISCLAIMER:

THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION

BELONGING TO AI ENGINEERS OR ITS AFFILIATED

COMPANIES AND SHALL BE USED ONLY FOR THE

PURPOSE FOR WHICH IT WAS SUPPLIED. IT SHALL NOT BE

COPIED, REPRODUCED OR OTHERWISE USED, NOR SHALL

SUCH INFORMATION BE FURNISHED IN WHOLE OR IN PART

TO OTHERS EXCEPT IN ACCORDANCE WITH THE TERMS

OF ANY AGREEMENT UNDER WHICH IT WAS SUPPLIED, OR

WITH THE PRIOR WRITTEN CONSENT OF AI ENGINEERS,

AND SHALL BE RETURNED UPON REQUEST.

FD FD

PROVIDE

18X6 E/A

ELEV. CAP

MACH.

ROOM FD

B 100

VD 6X6

JANITOR ROOM 9

1

35 HP-4 14

8

26

31TO HP-4

26 35

B-09

T

B 200

10X10

FD

TO EF-1

25

B-08

PS

27

TO HP-1

AND HP-2

210 CFM

WC

26

9

DU-1

28

39

5

STAIR

TO ECRP-1,

105

ECRP-2, ECRP-3

14X14 O/A TO

EXISTING

8X20 O/A UP

FD

45°

WC

33

4

EXISTING FD

40

PROVIDE

8X8 E/A

EF-1

10

19

ERU-1

PROVIDE 8Φ E/A

ELEV.

PROVIDE 12Φ S/A

AND EWH-2

35

35

15

HP-5

T

37

38

2

ACCU-1

13

HP-3 1 1/4" C

26

35

32

WC

8

11/4" C

5

37

26

4

5

42

PROVIDE

10X6 E/A

PROVIDE

12Φ E/A

3

ACCU-2

38

7

1 1/4 " C

1

8

1 1/4 " C

ECRP-1

24

TO HP-3

26

AND HP-5

ECRP-2 24

ECRP-3

24

5

B-

10X6 37

EXISTING

1 1/4"C DN.

30 PROVIDE WIRED CONTROLLER AND CONTROL WIRING FOR HP-7.

31 PROVIDE WIRED CONTROLLER AND CONTROL WIRING FOR HP-4.

32 PROVIDE WIRED CONTROLLER AND CONTROL WIRING FOR HP-3 AND HP-5.

33 PROVIDE WIRED CONTROLLER AND CONTROL WIRING FOR HP-1 AND HP-2.

34 PROVIDE WIRED CONTROLLER AND CONTROL WIRING FOR HP-8.

35 PROVIDE 1 1/4"C.

36 PROVIDE 1 1/4"C. PROVIDE WYE ADAPTER WITH 1 1/4" TAILPIECE. VERIFY EXISTING SINK DRAIN SIZE.

37 NEW STORAGE CLOSET WALLS AND DOOR SHALL BE FURNISHED AND INSTALLED BY THE TOWN OF NORTH BRANFORD. MECHANICAL CONTRACTOR SHALL

PROVIDE AND COORDINATE INSTALLATION OF TRANSFER GRILLES ON EACH SIDE OF WALL (ONE SET OF GRILLES 6" AFF AND SECOND SET OF GRILLES 6"

BELOW CEILING SERVING STORAGE ROOM WITH THE TOWN.

38 NEW ENCLOSURE (WITH BRICK PATTERN) FOR EXTERIOR REFRIGERANT RISERS ALONGSIDE BUILDING TO BE FURNISHED BY THE TOWN OF NORTH

BRANFORD AND INSTALLED BY THE MECHANICAL CONTRACTOR.

39 PROVIDE SOUNDPROOF WRAPPING ON FIRST 5' OF EACH PIPING CONNECTION TO DU-1.

ISSUANCE:

# DATE

1 01-16-26

DESCRIPTION

BID DOCUMENTS

SEAL:

CRAWL SPACE

B-15

5

6 74

22

12Φ E/A

42

10X10 E/A

40 PROVIDE DUCT FILTER SECTION MEETING THE FOLLOWING REQUIREMENTS: 22 GAUGE GALVANIZED STEEL CONSTRUCTION, GASKETED, HINGED, R-8

LINED HOUSING ACCESS DOOR, AND 20X16 2" MERV-8 FILTER. CONTRACTOR SHALL INSULATE FILTER HOUSING WITH R-8 RIGID BOARD INSULATION.

41 BALANCE EXISTING DUCTWORK/DIFFUSER TO SPECIFIED AIRFLOW.

EXISTING E/A

LOUVER

42 REINSTALL EXISTING EQUIPMENT SCREEN.

DRAWING TITLE:

MECHANICAL

LOWER LEVEL PLAN -

NEW WORK

DATE: 01-16-25

DRAWN BY: HB

CHECKED BY: OA

SCALE:

AS NOTED

JOB #:

4465

DRAWING #:

M101

Commodity Codes

• NAICS 238220Plumbing, Heating, and Air-Conditioning Contractors

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