Addendum 1 Pt3.pdf

PDF 2 MB Posted Feb 28, 2024

Attached to: Boiler Replacement for FPE Elem & Benton Harbor High School
Solicitation number: RFP - BHA - 240000001444
Issued by: Berrien County, Bergland CDP, Michigan

About this file

Written by GovTribe AI · Apr 3, 2024

This document is an Addendum for a Boiler Replacement project for Benton Harbor High School in Benton Harbor, Michigan. The project involves the installation of new steam boilers and associated piping, pumps, and controls to serve the school's existing heating hot water system. The mechanical plans and details provided in the addendum outline the scope of work, including the relocation and reuse of existing equipment where possible. No specific bid due dates or award information is provided in this document.

The addendum includes mechanical general notes detailing requirements for conflicts between standards, minimum quantities, coordination with other trades, and compliance with local codes. Pricing terms, funding sources, and set-asides are not discussed. The document serves to provide additional details and clarifications to the overall scope of the boiler replacement project for the high school facility.

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Other files

File	Type	Posted
230327_240126_Elem_Drawings.pdf	PDF	Feb 28, 2024
Addendum 1 Pt1.pdf	PDF	Feb 28, 2024
Addendum 2-4.pdf	PDF	Feb 28, 2024
230327_240126_HS_Drawings.zip	ZIP file	Feb 28, 2024
Addendum 1 Pt2.pdf	PDF	Feb 28, 2024
230327_240126_ProjectManual Part 1 of 2.pdf	PDF	Feb 28, 2024
230327_240126_ProjectManual Part 2 of 2.pdf	PDF	Feb 28, 2024
RFI and Response.pdf	PDF	Feb 28, 2024

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EX-DWST

EXISTING DOMESTIC WATER

STORAGE TANK, EXPANSION

TANK AND ALL ASSOCIATED

PIPING TO REMAIN.

EX-ET

CP-1

P-1

P-2 P-3 P-4

B-1 B-2

CP-2

ET-1

EX-12" SS

EX-10" SS

OUTLINE OF PENTHOUSE

MECHANICAL ROOM ABOVE.

NEW HYDRONIC PUMPS TO

SERVE EXISTING HEATING

HOT WATER SYSTEM. REFER

TO SYSTEM SCHEMATIC.

6" COMBUSTION

VENT THRU ROOF

10" EXHAUST

FLUE THRU ROOF

6" COMBUSTION

VENT THRU ROOF

10" EXHAUST

FLUE THRU ROOF

6" COMBUSTION

VENT THRU ROOF

10" EXHAUST

FLUE THRU ROOF

6" COMBUSTION

VENT THRU ROOF

10" EXHAUST

FLUE THRU ROOF

M-300

10" EXHAUST

FLUE THRU

ROOF10" EXHAUST

FLUE THRU ROOF

10" COMBUSTION

VENT THRU ROOF

B-3 B-4 B-5 B-6

M1M1

M5M5

M1M1

CP-3

-1

0" S

CONDENSATE

RECEIVER APPROX

200' DOWN TUNNEL

FROM BOILER ROOM

12" SSTO SECONDARY SYSTEM PUMPS

FROM SECONDARY SYSTEM

EX-4" HHWR

EX-4" HHWS

EXISTING RELOCATED DOMESTIC

WATER HEATER ON NEW

HOUSEKEEPING PAD.

COORDINATE RELOCATION WITH

NEW ELECTRICAL WORK AND FINAL

PANEL CLEARANCE ON WALL. 2

M-300

P-B1 P-B2

UH-2

UH-1

EX-NATURAL GAS METER AND SERVICE ENTRANCE.

5 PSIG SERVICE TO HS BOILER ROOM AND TO MAIN

ACROSS ROOF TO GYM UNITS, SEE NG ROOF PLAN

ON SHEET M103.

4" NG

FWS-1

BDT-1

-4

EX-DWH

-3

W S

ELEC EQUIP CLEARANCE

MIN 4'-0". DO NOT INSTALL

ANY PIPING OR EQUIPMENT

IN OR OVER THIS AREA.

2" H

AS-1

4" HHWR

4" HHWS&R TO/FROM

BOILERS, TYP. REFER

TO SCHEMATIC FOR

ISOLATION VALVE

AT BRANCH ETC.

FIELD LOCATE RELOCATED NG

PRV FROM COAL BUNKER,

REFER TO DEMO DWGS. VERIFY

RELOCATED PRV CAPACITY FOR

NEW LOAD.

1" H

R1"

1" HHWS&R

TO UH

10" SS

12" SS

2" CD EXISTING CONDENSATE,

FIELD VERIFY IN USE. CONNECT TO

NEW CP-1

FIELD ROUTE CONDENSATE FROM CP

TO FLOOR DRAIN IN ADJACENT ROOM

1" CD

REFER TO

SCHEMATIC

FOR PIPING

REFER TO SCHEMATIC

FOR PIPING

M3M3M4M4

M6M6

M7M7

M8M8

M10M10

M9M9

SUMP

3" S

4" SAN

EXISTING DOMESTIC WATER SERVICE AND PIPING RUNS ALONG THIS

WALL APPROX 4'-0" AFF. THIS TO REMAIN IN PLACE FOR REUSE.

EXIST ROOF CONDUCTOR CLEAN OUT ON WALL, COORDINATE

HOUSEKEEPING PAD AND MODIFY AS REQUIRED TO ALLOW ACCESS

TO CLEAN OUT.

M11M11 M12M12

M13M13

6" S

EX HHWS&R

TO REMAIN

EXIST HHWS&R TO REMAIN

3" HHWS

3" HHWR

CONFIRM EXISTING STEAM PIPE SIZE

AND MATCH SIZE.

4" HHWS

MECHANICAL GENERAL NOTES:

10.

11.

12.

13.

14.

IF COMPLIANCE WITH TWO OR MORE DIFFERING STANDARDS, REQUIREMENTS, DRAWINGS OR

SPECIFICATIONS, OR ANY COMBINATION THEREOF, IS SPECIFIED AND THESE ESTABLISH DIFFERENT OR CONFLICTING REQUIREMENTS FOR MINIMUM QUANTITIES OR QUALITY LEVELS, COMPLY WITH THE MOST STRINGENT REQUIREMENT. THE MOST STRINGENT REQUIREMENT WILL BE THE BETTER QUALITY OR

GREATER QUANTITY OF WORK, AND WILL TYPICALLY BE THE MORE EXPENSIVE OPTION. REFER

UNCERTAINTIES AND REQUIREMENTS THAT ARE DIFFERENT, BUT APPARENTLY EQUAL, TO ENGINEER

FOR A DECISION BEFORE PROCEEDING.

THE QUANTITY OR QUALITY LEVEL SHOWN OR SPECIFIED SHALL BE THE MINIMUM PROVIDED OR PERFORMED. THE ACTUAL INSTALLATION MAY COMPLY EXACTLY WITH THE MINIMUM QUANTITY OR QUALITY SPECIFIED, OR IT MAY EXCEED THE MINIMUM WITHIN REASONABLE LIMITS. TO COMPLY WITH THESE REQUIREMENTS, INDICATED NUMERIC VALUES ARE MINIMUM OR MAXIMUM, AS APPROPRIATE, FOR THE CONTEXT OF REQUIREMENTS. REFER UNCERTAINTIES TO ENGINEER FOR A DECISION BEFORE

PROCEEDING.

DESIGN DOCUMENTS MUST BE REPRODUCED IN THEIR ENTIRETY, INCLUDING ALL PLANS,

SPECIFICATIONS, AND FRONT END DOCUMENTS.

ONLY COMPLETE DOCUMENT SETS ARE TO BE DISTRIBUTED TO SUBCONTRACTORS AND SUPPLIERS OF

THE CONTRACTOR DURING BIDDING OR CONSTRUCTION.

FAILURE TO REVIEW AND COMPLY WITH A FULL SET OF CONTRACT DOCUMENTS WILL NOT BE

ACCEPTED AS A VALID REASON FOR FAILURE TO MEET THE REQUIREMENTS OF THE PLANS AND

SPECIFICATIONS.

ALL MECHANICAL WORK SHALL BE INSTALLED IN ACCORDANCE WITH LOCAL ORDINANCES, CODES, AND LAWS. FOR PURPOSES OF THIS DESIGN, THE CODES FOR THE STATE OF MICHIGAN WERE USED AS THE

BASIS.

COORDINATE LOCATIONS OF ALL DEVICES WITH ARCHITECTURAL AND ELECTRICAL PRIOR TO ROUGH- IN. ALL CONFLICTS WITH FINISHES, ADJACENT CONSTRUCTION, AND CONSTRUCTION DOCUMENTS ARE TO GENERATE AN RFI FROM THE MECHANICAL CONTRACTOR TO THE ARCHITECT/ENGINEER PRIOR TO

PROCEEDING AND COMPLETION OF WORK.

CONTRACTOR SHALL FURNISH AND INSTALL ISOLATION AND BALANCING VALVES AT ALL HYDRONIC (HHW AND CHW) COILS, AND BALANCING VALVES AT EACH DISTRIBUTION LOOP ON THE RETURN PIPE.

CONTRACTOR SHALL LOCATE VALVES TO ALLOW FOR ACCESS WITHIN 3 ’ AFTER CONSTRUCTION IS

COMPLETE.

MECHANICAL CONTRACTOR SHALL COORDINATE ROOF PENETRATIONS WITH ROOFING CONTRACTOR

OR ROOFING MANUFACTURER TO AVOID DAMAGE TO ROOFING SYSTEM.

MECHANICAL CONTRACTOR SHALL PROVIDE WATER PROOF SHEET METAL CAP, INSULATED

(EQUIVALENT TO ROOF) FOR ALL DEMOLISHED ROOF PENETRATIONS.

A TEST AND BALANCE (TAB) IS REQUIRED FOR THE WORK.

ALL MECHANICAL EQUIPMENT SHALL BE PROVIDED WITH MOTOR STARTERS COMPATIBLE WITH

CONTROLS SYSTEM. COORDINATE WITH CONTROLS AND ELECTRICAL CONTRACTORS.

IN UNFINISHED AREAS, INSTALL ALL MECHANICAL CONTROL DEVICES (THERMOSTATS, ROOM SENSORS, REMOTE TEST STATIONS, SMOKE DAMPER INDICATORS, ETC.) RECESSED IN WEB OF COLUMNS TO

PREVENT DAMAGE.

PROVIDE EMERGENCY SHUTOFF AT BOILER ROOM EXIT DOORS TO SHUTDOWN ALL BOILERS PER CSD-1

REQUIREMENTS

W E

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T O S O

LID

W S

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(866) 454-3923 | WWW.C2AE.COM

PROJ. #:

ISSUANCES

#DESCRIPTION DATE

NOT TO BE REPRODUCED OR DISTRIBUTED

WITHOUT PRIOR WRITTEN CONSENT.

PHASE

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M-100

23-0327

ISSUED FOR BIDDING

26JAN2024ISSUED FOR BIDDING

H A N

A L P

A01 ADDENDUM 1 15FEB2024

1/4" = 1'-0"

MECHANICAL - BOILER ROOM

MECHANICAL KEYNOTES

KEY VALUE KEYNOTE TEXT

M1 UTILIZE EXISTING WALL OPENINGS FOR NEW HYDRONIC PIPING.

M3 FIELD ROUTE FEEDWATER PIPING FROM FEEDWATER SYSTEM TO BOILERS PER

MFG REQUIREMENTS. CONNECT TO EXISTING DOMESTIC WATER FOR MAKEUP.

M4 FIELD ROUTE PIPING TO/FROM BLOWDOWN TANK PER MFG REQUIREMENTS.

EXTEND DRAIN TO NEW FLOOR DRAINS.

M5 FIELD ROUTE EXISTING APPROX 2" CONDENSATE RETURN FROM EXISTING WALL

PENETRATION TO NEW CP. REUSE EXISTING VERTICAL HEADER TO CR.

M6 FIELD ROUTE EXISTING CONDENSATE RETURNS FROM THE DEMOLISHED

OVERHEAD FEEDWATER TANK LOCATION TO THE NEW FLOOR MOUNTED

FEEDWATER TANK LOCATION. APPROX FOUR CONDENSATE RETURNS FROM 1" TO

2" IN SIZE.

M7 EXISTING CONDENSATE RECEIVER IS LOCATED ON FLOOR IN ROOM WITH AHU,

PLACE NEW UNIT IN SAME LOCATION. RECONNECT EXISTING PIPING TO/FROM CP.

REPLACE EXISTING PIPING FROM CEILING TO UNIT. REFER TO DETAIL 2 ON SHEET

M-501.

M8 INSTALL STEAM BOILER SO THAT ALL MFG REQUIRED CLEARANCES ARE

OBTAINED, TYP ALL BOILERS STEAM AND HYDRONIC. DO NOT BLOCK AREA ABOVE

STEAM BOILERS SO THAT VERTICAL DISTANCE FOR COIL PULL IS MAINTAINED.

M9 REFER TO ARCH SHEET A100 FOR NEW FLOOR DRAIN LOCATIONS. PROVIDE

JOSAM MODEL 30000-S OR EQUAL, 5" x 5" COATED CAST IRON BODY FLOOR DRAIN, TWO PIECE BODY WITH DOUBLE DRAINAGE FLANGE, WEEPHOLES, BOTTOM

OUTLET AND AJUSTABLE SATIN NICKELOY SQUARE STRAINER.5" ROUND CAST

IRON FLOOR DRAIN WITH GRATE AND 3" SANITARY CONNECTION. INSTALL CAST

IRON DRAIN PIPING TO EXISTING IN FLOOR SUMP. SAW CUT FLOOR AS REQUIRED

AND PATCH.

M10 CONNECT NEW FLOOR DRAIN TO EXISTING SANITARY PIPING.

M11 FIELD LOCATE NEW DDC CONTROL PANEL ON WALL.

M12 REFER TO ELECTRICAL DRAWINGS FOR BOILER EMERGENCY SHUTDOWN

SWITCHES AND LOCATIONS.

M13 FIELD LOCATE NEW OWNER FURNISHED MODSYNC BOILER CONTROL PANEL FOR

STEAM BOILERS. MOUNT ON WALL OR CREATE UNISTRUT SUPPORT FROM FLOOR.

A01

Page 46 of 52 Addendum #1

MECHANICAL GENERAL NOTES:

10.

11.

12.

13.

14.

IF COMPLIANCE WITH TWO OR MORE DIFFERING STANDARDS, REQUIREMENTS, DRAWINGS OR

GREATER QUANTITY OF WORK, AND WILL TYPICALLY BE THE MORE EXPENSIVE OPTION. REFER

UNCERTAINTIES AND REQUIREMENTS THAT ARE DIFFERENT, BUT APPARENTLY EQUAL, TO ENGINEER

FOR A DECISION BEFORE PROCEEDING.

PROCEEDING.

DESIGN DOCUMENTS MUST BE REPRODUCED IN THEIR ENTIRETY, INCLUDING ALL PLANS,

SPECIFICATIONS, AND FRONT END DOCUMENTS.

ONLY COMPLETE DOCUMENT SETS ARE TO BE DISTRIBUTED TO SUBCONTRACTORS AND SUPPLIERS OF

THE CONTRACTOR DURING BIDDING OR CONSTRUCTION.

FAILURE TO REVIEW AND COMPLY WITH A FULL SET OF CONTRACT DOCUMENTS WILL NOT BE

ACCEPTED AS A VALID REASON FOR FAILURE TO MEET THE REQUIREMENTS OF THE PLANS AND

SPECIFICATIONS.

ALL MECHANICAL WORK SHALL BE INSTALLED IN ACCORDANCE WITH LOCAL ORDINANCES, CODES, AND LAWS. FOR PURPOSES OF THIS DESIGN, THE CODES FOR THE STATE OF MICHIGAN WERE USED AS THE

BASIS.

PROCEEDING AND COMPLETION OF WORK.

CONTRACTOR SHALL FURNISH AND INSTALL ISOLATION AND BALANCING VALVES AT ALL HYDRONIC (HHW AND CHW) COILS, AND BALANCING VALVES AT EACH DISTRIBUTION LOOP ON THE RETURN PIPE.

CONTRACTOR SHALL LOCATE VALVES TO ALLOW FOR ACCESS WITHIN 3 ’ AFTER CONSTRUCTION IS

COMPLETE.

MECHANICAL CONTRACTOR SHALL COORDINATE ROOF PENETRATIONS WITH ROOFING CONTRACTOR

OR ROOFING MANUFACTURER TO AVOID DAMAGE TO ROOFING SYSTEM.

MECHANICAL CONTRACTOR SHALL PROVIDE WATER PROOF SHEET METAL CAP, INSULATED

(EQUIVALENT TO ROOF) FOR ALL DEMOLISHED ROOF PENETRATIONS.

A TEST AND BALANCE (TAB) IS REQUIRED FOR THE WORK.

ALL MECHANICAL EQUIPMENT SHALL BE PROVIDED WITH MOTOR STARTERS COMPATIBLE WITH

CONTROLS SYSTEM. COORDINATE WITH CONTROLS AND ELECTRICAL CONTRACTORS.

IN UNFINISHED AREAS, INSTALL ALL MECHANICAL CONTROL DEVICES (THERMOSTATS, ROOM SENSORS, REMOTE TEST STATIONS, SMOKE DAMPER INDICATORS, ETC.) RECESSED IN WEB OF COLUMNS TO

PREVENT DAMAGE.

PROVIDE EMERGENCY SHUTOFF AT BOILER ROOM EXIT DOORS TO SHUTDOWN ALL BOILERS PER CSD-1

REQUIREMENTS

EX-2" NG EX-16" DUCT

EX-CONDENSING

UNIT TO REMAIN

EX-4" NG

M2M2 M2M2

M2M2

TO/FROM BOILER

ROOM, TO REMAIN

REFER TO

STRUCTURAL

FOR CHIMINEY

WORK

MECHANICAL PENTHOUSE

NEW STANDBY GENERATOR,

REFER TO ELECTRICAL DRAWINGS

FOR LOCATION. APPROX 80 KW

WITH 1000 CFH DEMAND

EXISTING NATURAL GAS SERVICE

ENTRANCE AND METER. 2" NG LINE

AT 5 PSIG PRESSURE RUNS FROM

SERVICE ENTRANCE ACROSS

HS ROOF, UNDER COURTYARD AND

ACROSS ROOF TO GYM AS SHOWN.

FIELD VERIFY NG PRESSURE IN

THIS 2" LINE.

TWO EXISTING 2" VALVED

CONNECTIONS. UTILIZE ONE

CONNECTION TO SERVE NEW

STANDBY GENERATOR.

APPROX 100' LF FROM UPPER

ROOF TO GRADE AT STANDBY

GENERATOR LOCATION. FIELD ROUTE 2"

NG LINE FROM EXISTING VALVED CONNECTION

TO STANDBY GENERATOR, PROVIDE PRV TO

REDUCE NG PRESSURE FROM 6 PSIG TO 11" W.C.,

VERIFY REQURIED PRESSURE WITH FINAL GENERATOR

SELECTION.

APPROX 10'-0" VERTICAL DROP

THREE EXISTING RTU'S WITH

PRESSURE REGULATING VALVES

AND DROPS THRU ROOF INTO

LASSROOMS BELOW. FIELD VERIFY

CLASSROOM DROPS HAVE

PRESSURE REGULATOR INSTALLED.

NEW TO EXISTING

PIPE CONNECTION

TWO NG FIRED RTU. THESE UNITS

WILL OPERATE ON STANDBY

GENERATOR. 1200 CFH EACH FOR

TOTAL OF 2400 CFH NG DEMAND.

NG LOAD INFORMATION WITH STANDBY GENERATOR OPERATING

RTU 1 & 2 SERVING GYM: 2400 CFH

STANDBY GENERATOR: 1100 CFH

TOTAL LOAD: 3500 CFH IN 2" LINE RUNNING APPROX 1,000 FT AT 5 PSIG PRESSURE.

W E

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ISSUANCES

#DESCRIPTION DATE

NOT TO BE REPRODUCED OR DISTRIBUTED

WITHOUT PRIOR WRITTEN CONSENT.

PHASE

2/ /2 2:

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M-103

23-0327

ISSUED FOR BIDDING

26JAN2024ISSUED FOR BIDDING

H A N

A L P

N R O O F

1/4" = 1'-0"

MECHANICAL PLAN - ROOF

A01 ADDENDUM 1 15FEB2024

MECHANICAL KEYNOTES

KEY VALUE KEYNOTE TEXT

M2 SEAL BOILER FLUES ROOF PENETRATION WEATHER TIGHT, SEE DETAIL.

1/2" = 1'-0"

NG ROOF PLAN

A01

A01 A01

A01

Page 47 of 52 Addendum #1

CODE

APPROVED CAP

VENTILATED ROOF

SLEEVE

SHEET METAL FLASHING

ROOF

GUSSET PLATES

STORM COLLAR

ANGLE SUPPORTS

ON FOUR SIDES

TYPE "B" FLUE

" M

U M

PLATE WASHER

1/4"x5"x5"

FLOOR TOPPING

PRECAST HOLLOW

CORE SLAB

CLEVIS PIPE HANGER

250 LB. MAX.

18" LONG 16 GAUGE

PIPE SHIELD

INSULATED PIPE WITH

VAPOR BARRIER

ALL THREAD THRU

CONCRETE FLANK 1ST

FLOOR. SEE DETAIL X,

SHEET X FOR CONN. AT

2ND FLOOR

1/2" Ø THREADED ROD

90° SECTION OF RIGID

INSULATION MIN. 12" LONG

(TYP. FOR ALL PIPING)

"U" BOLT

EXISTING CONCRETE

SLAB AND JOIST

FRAMING

1/2"Ø ROD

PS210

FIG. 66

RIGID FIBERGLASS

INSULATION (1"

THICK) (TYP.)

PS210

PS925

THREADED EYE

ROD

"GRINNELL" FIG.

260 PIPE HANGER

"GRINNELL" FIG.

167 INSULATION

SHIELD (MIN. 18

GAUGE, 12" LONG,

180°) (TYP.)

CALCIUM SILICATE

RIGID INSULATION

INSERT (TYP.)

"GRINNELL" FIG.

66 BEAM

ATTACHMENT 8

"POWER STRUT"

PS 925 JOINT

CONNECTOR

"POWER

STRUT" PS

210 CHANNEL

PLAN VIEW

AS REQUIRED (MIN. 24")

12".

3/8"Ø HILTI KH-EZ I WITH 1/2-13 INTERNAL

THREADS FOR 1/2" DIA. RODS FOR #500

1/4

3 1

/4" M

; F

INCOMING

GAS LINE

LUBRICATED

PLUG VALVE

DIRT LEG

EQUIPMENT

UNION

PIPE REDUCER FROM

BRANCH PIPE SIZE TO

UNIT CONNECTION SIZE.

PROVIDE AT UNIT.

HIGH CONDENSATE LEVEL

-PUMP ON

-CHECK VALVE OPEN

-CONDENSATE CAN FLOW

INTO RECEIVER.

LOW CONDENSATE LEVEL

-PUMP OFF

-CHECK VALVE CLOSED

-CONDENSATE CAN FLOW

INTO RECEIVER.

PUMP

RECEIVER

HHWR

HHWS

'PETE'S' TEST PLUG (TYP.)

CHECK VALVE

(TYP.)

STRAINER (TYP.)

RELIEF VALVE (TYP.)

BOILER (TYP.)

6" CONCRETE

PAD

BUTTERFLY

VALVE (TYP.)

FROM SYSTEM

TO SYSTEM

UNION (TYP.)

ACID NEUTRALIZATION KIT.

ROUTE CONDENSATE TO DRAIN.

BOILER E-STOP

PER CSD-1

REQUIREMENTSNOTE: AIR INTAKE AND EXHAUST OPENING SHOULD BE

SEPARATED PER NFGC TO PREVENT FLUE GAS

RECIRCULATION DURING DIFFERENT WIND CONDITIONS.

PVC PIPE

ADHESIVE SEAL

STORM COLLAR

ADJUSTABLE FLASHING

SCREENED INLET

ADJUSTABLE

FLASHING

EXHAUST DUCT IS

DOWNWIND OF AIR

INTAKE OPENING

ROOF SUPPORT

MIN. 4 FT

. 2 F T.

TEE OR CAP PER

BOILER MFG

REQUIREMENT

F T.

MANUFACTURER

APPROVED EXHAUST

PIPE AND RAIN CAP

DOUBLE-WALL

THIMBLE

SCREENED INLET

FULL SIZE DRAIN TO

FLOOR SINK

PRESSURE REDUCING

VALVE SET AT 12 PSIG

DIELECTRIC UNION: LOCATE

AT CHANG OF PIPE MATERIAL

AND AT ALL FERROUS TO

NON-FERROUS MATERIAL

CONNECTIONS

1" BYPASS WITH BALL

VALVE

SEE PLUMBING PLAN

FOR CONTINUATION

BLADDER TYPE

EXPANSION TANK

1" TO SYSTEM

PUMP SUCTION

ASME PRESSURE RELIEF

VALVE SET AT 75 PSIG

OUTLET GRILLE

CONTROL VALVE WITH

THERMOSTAT

CONTROL

OR DANFOSS SELF-

CONTAINED CONTROL

VALVE. SEE PLANS FOR

TYPE AND LOCATION.

BALL

VALVE

(TYP.)

HHWS CIRCUIT SETTER

HHWR

UNION (TYP.)

PRESSURE SENSING TAPS FOR

FLOW MEASUREMENT (TYP.)

MULTI-PURPOSE VALVE

PRESSURE GAUGE (0-60 PSI RANGE)

FLEX CONNECTOR (TYP.)

GAUGE ISOLATION VALVE (TYP.)

PUMP

COUPLING

GUARD

MOTOR

GROUT-FILLED

EQUIPMENT BASE

4" CONCRETE

HOUSEKEEPING PAD

LUG-STYLE

BUTTERFLY

VALVE

SUCTION

DIFFUSER

APPROX. 8'-0"

CEILING HEIGHT

EXIST CP

SUPPORT FROM

CEILING.

INSULATE ALL

EXISTING PIPE

BEING REUSED.

MOUNT ON 4"

HOUSE KEEPING

PAD, FIELD VERIFY

HEIGHT AVAILABLE

FLOOR LINE

1/8" C.I.

BEND

BALANCE OF PIPING

SAME AS CLEANOUT

TO GRADE

CLEANOUT & ACCESS

COVER. TOP OF COVER

TO BE FLUSH WITH

TOP OF FLOOR

ADJUSTABLE SHANK

CLAMPING COLLAR

TILE BED

FLOOR TILE

3'-0"x3'-0"x4 LB.

PER SF LEAD PAN

CONNECT

TO P-TRAP

DRIP LEG (TYP.)

LP STEAM LINE

CAP (TYPICAL)3/4" DRAIN

(ALTERNATE LOCATIONS)

FROM DRIP

CONNECTION

3/4" MIN

3/8" TEST CONNECTION

DRIP RETURN

STEAM TRAP ASSEMBLY

STEAM LINE DRIP POCKET

RECOMMENDED PIPE SIZING CHART

PIPE SIZE (INCHES)

FLOW (GPM)

COPPER IRON

3/4"

1-1/4"

1-1/2"

2-1/2"

0-3.5

6-12

10-20

20-40

35-75

60-120

N/A

3.5-7

10"

12"

0-4

7.5-15

11-24

21-45

35-75

65-125

125-275

250-450

350-800

800-1500

1500-2500

2500-5000

4-7.5

N/A

INSTALL ISOLATION VALVES ON EACH BRANCH

OR RUNOUT. CONFIRM THAT VALVE IS

ACCESSIBLE TO MAINTENANCE STAFF.

ISOLATION VALVE SHALL BE A BALL VALVE

FOR PIPE UNDER 6", AND A BUTTERFLY VALVE

FOR PIPE 6" AND ABOVE.

BRANCH OR RUNOUT PIPING SHALL TAKE OFF

THE SIDE OR TOP OF THE MAIN TO PREVENT

DEBRIS IN THE BRANCH.

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ISSUANCES

#DESCRIPTION DATE

NOT TO BE REPRODUCED OR DISTRIBUTED

WITHOUT PRIOR WRITTEN CONSENT.

PHASE

2/ /2 2:

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M-501

23-0327

ISSUED FOR BIDDING

26JAN2024ISSUED FOR BIDDING

H A N

A L D

A01 ADDENDUM 1 15FEB2024

12" = 1'-0"9 FLUE THRU ROOF

12" = 1'-0"8 PIPE - ALL-THREAD ROD FROM STRUCTURE

12" = 1'-0"5 PIPE - HANGER FROM CONCRETE DECK

12" = 1'-0"7 GAS - EQUIPMENT CONNECTION

12" = 1'-0"1 STEAM - CONDENSATE UNIT

12" = 1'-0"3 HYDRONICS - BOILER PIPING WITH ACID NEUTRALIZATION

1/4" = 1'-0"4 BOILER - VENTING DETAIL

12" = 1'-0"10 HYDRONICS - EXPANSION TANK

12" = 1'-0"11 HYDRONICS - UNIT HEATER

12" = 1'-0"6 PUMP - END SUCTION WITH SUCTION DIFFUSER

A01

NOT TO SCALE2 CP-3 EXISTING CONDITION DETAIL

12" = 1'-0"12 FLOOR CLEANOUT DETAIL

12" = 1'-0"13 FLOOR DRAIN DETAIL

NOT TO SCALE14 STEAM - TRAP DETAIL

NOT TO SCALE15 HYDRONICS - PIPE SIZING CHART

12" = 1'-0"16 PIPE - BRANCH OFF MAIN

Page 48 of 52 Addendum #1

BOILER-1 BOILER-2 BOILER-3

ISOLATION VALVE (TYP.)

EXISTING STEAM HEADER

CONDENSATE / FEED

WATER RECEIVER

TANK (ELEVATED)

BLOWDOWN DRAIN

STEAM TO HHW

HEAT

EXCHANGER

OLD VALVE

NEWER VALVE

4" SS

6" SS

10" SS

12" SS

P-1

P-2

P-3

P-4

HEATING HOT

WATER PUMPS

NEW STEAM

CONTROL VALVE

ABANDONED

DOMESTIC HOT

WATER TANK

(ELEVATED)

TO/FROM

BLDG

TO/FROM

BLDG

TO/FROM BLDG

NOTES:

REFER TO MECHANICAL DETAILS FOR ADDITIONAL

INFORMATION.

B-1 B-1

TO SYSTEM

CHECK VALVE (TYP.)

ISOLATION VALVE (TYP.)

P-1 P-2

P-3

P-4

STRAINER (TYP.)

RELIEF VALVE (TYP.)

LOW WATER CUT-OFF

SWITCH (TYP.)

PRESSURE/TEMP GAUGE (TYP.)

AQUASTAT (TYP.)

UNION (TYP.) 3/4" ASME PRESSURE

RELIEF VALVE SET AT

75 PSIG

3/4" BYPASS

DIELECTRIC UNION: LOCATE

AT CHANGE OF PIPE

MATERIAL AND AT ALL

FERROUS TO NON-FERROUS

MATERIAL CONNECTIONS

3/4" CW

PRESSURE REDUCING

VALVE SET AT 20 PSIG

FULL SIZE DRAIN

TO FLOOR DRAIN

FULL SIZED RAIN

TO FLOOR DRAIN

FULL SIZED RAIN

TO FLOOR DRAIN

BALL VALVE (TYP.)

MANUAL SHUT-OFF VALVE

GAS PRESSURE REGULATOR

MANUAL SHUT-OFF VALVE

GAS PRESSURE REGULATOR

AIR VENT

BOILER E-STOP PER

CSD-1 REQUIREMENTS

P-3 P-4 HH

FROM BLDG

SYSTEM

AS-1

ET-1

CONNECTION 3 TO 5

PIPE DIA APART

CHEMICAL TREATMENT \

CONNECTION

M M

EX-PRV

B-1 B-2

EX-LPS MAIN

CR-1

B-2

B-2 BO

-1

-2

-3

ISOLATION VALVE (TYP.)

STEAM HEADER

FEED WATER

RECEIVER TANK

-4

TO BOILERS

STEAM TO BLDG

W E

D B Y:

B Y:

D B Y:

W S

O M W

T O S

W S

Y C O

ISSUANCES

#DESCRIPTION DATE

NOT TO BE REPRODUCED OR DISTRIBUTED

WITHOUT PRIOR WRITTEN CONSENT.

PHASE

2/ /2 2:

Au to de sk D oc s:

Be nt on H ar bo r A re a Sc ho ol s Bo ile r R ep la ce m en t/

M .rv t

C he ck er

D es ig ne r

Ap pr ov er

ILE

R H

O L

C O

O N

O R, M

M-701

23-0327

ISSUED FOR BIDDING

26JAN2024ISSUED FOR BIDDING

H A N

A L D

M S S C H

C S

NOT TO SCALE1 EXISTING STEAM - BOILER ROOM SCHEMATIC

12" = 1'-0"2 PROPOSED HYDRONICS - BOILER - PRIMARY-SECONDARY SCHEMATIC

A01 ADDENDUM 1 15FEB2024

12" = 1'-0"4 PROPOSED STEAM BOILER SCHEMATIC DIAGRAM

12" = 1'-0"3 PROPOSED STEAM - BOILER ROOM SCHEMATIC

A01

Page 49 of 52 Addendum #1

MDP 120/208V

3PH/4W 3000A

**MDP PREPURCHASED. CONTRACTOR RESPONSIBLE FOR INSTALLING AND RECONNECTING EXISTING LOADS.**

LOAD SUMMARY

INDIANA ELECTRIC POWER ENERGY METERED MAXIMUM

DEMAND FROM 02/2022 - 12/2023 (MAX AT 9/2022):

ESTIMATED DEMOLITON LOAD:

PROPOSED ADDITIONAL LOAD:

ESTIMATED TOTAL NEW LOAD:

WIRE SIZES

10.

11.

(8) 4"C, 4-500 kCM, 1#3 G EACH

(4) 3"C, 4-600 kCM, 1#3 G EACH

(2) 3"C, 4-500 kCM, 1#3 G EACH

(2) 3 1/2"C, 4-350 kCM, #1 AWG G 3"C, 4-500 kCM, 1#3 G

3"C, 4/0 AWG, 1#4 G

2 1/2"C, 4-3/0 AWG, 1#6 G

1 1/2"C, 3-#3 AWG, 1#8 G

1"C, 3-#8 AWG, 1#10 G

3/4"C, #10 AWG, 1#10 G

3/4"C, 3-#12 AWG, 1#12 G

EX. LOADEX. LOAD

J JJ

2 5 5

UTILITY

500 kVA

12470GY/7200V - 208Y/120V

3PH, 4W

XFMR - PAD MOUNTP

PP 3RD

FLOOR

400A

PANEL -Z

600A

OLD LT

TUNNEL

400A

DP2

PANEL

800A

PANEL

BOILER

JAN.

CLOSET

PANEL

200A

PANEL

100A

B PANEL

CLASSROOM

200A

EX. LOAD

PANEL -B

200A

PANEL -A

200A

J J

7 74

EX. LOAD

EX. LOADEX. LOAD

J J

11 11

EX. LOAD

EX. LOADEX. LOAD

J J

8 8

EX. LOAD

PANEL

100A

INVERTER

EX. LOADEX. LOAD

J J

11 11

EX. LOAD

BDP 120/208V

3PH/4W 400A

1315A

245A

204A

1275A

BOILER 4BOILER 3BOILER 2BOILER 1 BOILER 5

9 9 9

11 11

BOILER 6

PUMP P-B2PUMP P-B1

11 11

ONE LINE NOTES

RECONNECT ALL EXISTING ACTIVE LOADS FROM DEMOLISHED MDP TO NEW MDP.

CONTRACTOR TO FIELD VERIFY AND LABEL ALL UNMARKED / UNKNOWN CIRCUITS

CONNECTED TO EXISTING PANEL THAT ARE TO REMAIN. LABELS SHALL BE

INCLUDED ON NEW BREAKERS OF MDP AFTER NEW CIRCUITS ARE TERMINATED.

PANEL

CM 100A

FROM EXISTING FEED

PUMP P-2

PUMP P-1 PUMP P-3

PUMP P-4

ONE-LINE DIAGRAM

CONTINUED ON E-503

SPARE

ATTACH TO WALL FRAMING OR OTHER

SUITABLE BUILDING COMPONENT

1/4" x 2" x 24" LONG

GROUND

BAR, INSULATORS

AND MOUNTING CLIPS

TWO HOLE

COMPRESSION

LUG

FINISHED

GRADE

#2/0 AWG BARE

STRANDED COPPER

CABLE (TYPICAL)

CONNECTION TO BE

MADE WITH HEAVY

DUTY EXOTHERMIC

PROCESS.

3/4" 10' 0"

MINIMUM COPPER

CLAD STEEL

GROUND ROD

2' 0" M

4 AWG

COMMUNICATIONS

DUCT BANK GROUND

CONDUCTOR

4 AWG

COMMUNICATIONS ROOM

GROUND BUS

GROUNDING CONNECTION

TO BUILDING STEEL

SERVICE ENTRANCE

GROUND BUS

ADDITIONAL GROUNDING

CONNECTIONS AS REQUIRED

BY PROJECT

#2/0 AWG #1/0 AWG

#3/0 AWG

#4/0 AWG

GROUNDING

RECEPTACLE

GROUNDING

RECEPTACLE

GROUNDING CONNECTION TO

WATER SERVICE

TO LIGHTNING ROD

PROTECTION GROUND RODS

EXOTHERMIC WELDS

(TYPICAL ALL)

GROUND ROD

(TYPICAL)

#4/0 AWG

EM STOP - PALM SWITCH W/ LEXAN

SHIELD BY CONTRACTOR MOUNTED

ADJACENT TO DOOR(S) IN MECH.

ROOM.

BOILER B-5

BOILER B-4

BOILER B-6

BOILER B-3

BOILER B-2

BOILER B-1

SHUNT TRIP COIL

120V CIRCUIT

NOT TO SCALE

BOILER EMERGENCY SHUTDOWN DETAIL1NOT TO SCALE

GROUNDING SYSTEM DETAIL2NOT TO SCALE

GROUND ROD DETAIL4 NOT TO SCALE

GROUND BUSBAR MOUNTING DETAIL3

W E

D B Y:

B Y:

D B Y:

W S

O M W

T O S

W S

Y C O

ISSUANCES

#DESCRIPTION DATE

NOT TO BE REPRODUCED OR DISTRIBUTED

WITHOUT PRIOR WRITTEN CONSENT.

PHASE

2/ /2 2:

Au to de sk D oc s:

Be nt on H ar bo r A re a Sc ho ol s Bo ile r R ep la ce m en t/

rv t

C he ck er

D es ig ne r

Ap pr ov er

ILE

R H

O L

C O

O N

O R, M

E-501

23-0327

ISSUED FOR BIDDING

26JAN2024ISSUED FOR BIDDING

O N E

N E D

M D

A01 ADDENDUM 01 15FEB2024

NOT TO SCALE

PROPOSED ONE-LINE RISER DIAGRAM

A01

Page 50 of 52 Addendum #1

ONE-LINE DIAGRAM

CONTINUED ON E-501

1600AF

600AT 60

DP11B

600A

JANITOR

RM 10A

GYM PNL

NORTHEAST

CORNER

RLP

16/17

GYM PNL

SOUTH

DP11A

600A

JANITOR

RM 10A

ATS

200A

80 KW, 208V, 3PH/4W

NATURAL GAS

STANDBY GENERATOR

PANEL #2

RLP 19

PANEL

BY RM

224 (2ND

FLOOR)

RM 227

DIST.

PNL

RTU ABOVE

RM 226GYM PNL

WEST

600A

2 1/2"C, 4-3/0 AWG, 1#6 G

KEYNOTES

DEMOLISH LIGHTING CIRCUIT FROM PANEL RLP 19 TO WOMEN'S RESTROOM

(LISTED AS CIRCUIT 29 ON PANEL SCHEDULE).

DEMOLISH LIGHTING CIRCUIT FROM PANEL RLP 16/17 TO MEN'S RESTROOM

(LISTED AS CIRCUIT 28 ON PANEL SCHEDULE).

DEMOLISH FEED FROM PANEL DP11B.

DEMOLISH AHU CIRCUITS FROM PANEL DP21.

CONTRACTOR TO FIELD VERIFY BATHROOM EXHAUST FAN CIRCUIT

CONNECTION(S). DEMOLISH EXHAUST FAN CIRCUIT(S) FROM CURRENT FEED.

FURNISH AND INSTALL GENERATOR AND ATS NEAR NORTHWEST CORNER OF

GYM. FURNISH AND INSTALL CIRCUIT FROM ATS TO DP11B.

FURNISH AND INSTALL NEW CIRCUITS FROM GYM PANEL IN NORTHEAST

CORNER AS FOLLOWS:

20A, 120V FOR MEN'S AND WOMEN'S RESTROOM LIGHTING

20A, 120V FOR RESTROOM EXHAUST FANS

90A, 208V, 3 POLE FOR EACH AHU.

TO ATS.

CONTRACTOR TO CONFIRM LOAD ASSOCIATED WITH 100A, 208V, 3 POLE

BREAKER AND VERIFY WITH THAT IT IS NOT REQUIRED TO BE ON STANDBY

POWER.

AHU ON

GYM ROOF

AHU ON

GYM ROOF

4DP 21

225A

FROM EXISTING FEED

90A

1600A, 208V, 3PH/4W

SWITCHGEAR IN BASEMENT B15

ADDITIONAL

LOADS

200A

1"C, MFR

RECOMMENDED CABLE ANN

1"C, 4#14

1"C, 8#14

1"C, 6#10, #10G

CONTROL PANEL

PANEL DP12

GENERAL NOTES

DESIGN INTENT FOR STANDBY GENERATOR IS TO PROVIDE HEAT AND LIGHTS IN THE

GYM AND ADJACENT RESTROOMS FOR A COMMUNITY WARMING CENTER. ALL STANDBY

POWER TO BE FED FROM 225A PANEL IN THE NORTH EAST CORNER OF THE GYM.

ALL EXISTING ONE LINE CONNECTIONS SHOWN AND KEY NOTES ARE BASED ON FIELD

INVESTIGATIONS AND PANEL SCHEDULES AND HAVE NOT BEEN VERIFIED. EXISTING

DRAWINGS OR OTHER DOCUMENTATION IS NOT AVAILABLE.

CONTRACTOR MUST VERIFY ALL CONNECTIONS AND REPORT DISCREPANCIES TO THE

OWNER/ENGINEER BEFORE PROCEEDING WITH ANY SYSTEM MODIFICATIONS.

LOAD SUMMARY

ESTIMATED CURRENT LOAD:

PROPOSED ADDITIONAL LOAD:

ESTIMATED TOTAL NEW LOAD:

**100A, 208V, 3P BREAKER EXCLUDED

FROM CALCULATION.**

64.2A

88.5A

152.6A

EMERGENCY STOP

NOTES:

1. THE DESIGN IS BASED ON AN ALLOWABLE SOIL BEARING PRESSURE OF 2500 PSF. IF SUITABLE SOILS ARE NOT FOUND AT THE ELEVATIONS

SHOWN, EXCAVATE AND REPLACE WITH ENGINEERED FILL AS DIRECTED BY THE ENGINEER.

2. ALL CONCRETE SHALL ACHIEVE 4000 PSI AT 28 DAYS AND SHALL BE AIR ENTRAINED. CHAMFER EXPOSED EDGES 3/4".

3. PROVIDE OPENINGS FOR GENERATOR PRIMARY AND SECONDARY CONDUITS AS REQUIRED.

4. ADJUST PAD DIMENSIONS FOR EQUIPMENT SUPPLIED. PAD SHALL BE 12 INCHES LONGER AND WIDER THAN EQUIPMENT SUPPLIED.

5. FURNISH AND INSTALL (4) 3/4" x 10' GROUND RODS IN UNDISTRIBUTED SOIL NEAR PAD CORNERS. INTERCONNECT WITH #4/0 BARE COPPER GROUND CABLE. CONNECT TO TRANSFORMER GROUND LUG AND TO MAIN DISCONNECT GROUND BUS WITH #4/0 CABLE.

- 6

(2) #5 TOP AND BOTTOM

(TYPICAL ALL 4 SIDES)

#4 DOWEL @ 12" O.C.

2'-0"

#4 @ 12" O.C. 12" LOOSE SAND FILL

SEE NOTE 5

PAD WIDTH

#4 @ 6" O.C.

3"CLEAR FROM BOTTOM

OF SLAB TO BAR

" M

FINISHED GRADE

85% COMPACTED

GRANULAR BACKFILL

6" WIDE POLYETHYLENE

MARKING TAPE WITH

BLACK LETTERS

3" MINIMUM SAND

BEDDING ALL AROUND

CABLE OR CONDUIT

W E

D B Y:

B Y:

D B Y:

W S

O M W

T O S

W S

Y C O

ISSUANCES

#DESCRIPTION DATE

NOT TO BE REPRODUCED OR DISTRIBUTED

WITHOUT PRIOR WRITTEN CONSENT.

PHASE

2/ /2 2:

Au to de sk D oc s:

Be nt on H ar bo r A re a Sc ho ol s Bo ile r R ep la ce m en t/

rv t

C he ck er

D es ig ne r

Ap pr ov er

ILE

R H

O L

C O

O N

O R, M

E-503

23-0327

ISSUED FOR BIDDING

26JAN2024ISSUED FOR BIDDING

R D

A01 ADDENDUM 01 15FEB2024

NOT TO SCALE

ONE-LINE RISER DIAGRAM - GENERATOR

NOT TO SCALE

GENERATOR PAD DETAIL1NOT TO SCALE

TRENCHING DETAIL2

Page 51 of 52 Addendum #1

B-1

B-2

EX-P

EX-2" HHWR

EX-2" HHWS

EX-DWH

EX-WS

EX-HX

EX-6" SS

EX-3" DCW

-1

1/ 2"

EX-1 1/2" DHW

EX-1 1/2" DCW

M1M2M2

EXISTING DDC CONTROL

PANEL TO REMAIN

EX-CR

EXTEND CONDENSATE

PIPING TO BOILER FEEDWATER

CONNECTION.

3" VENT, EXTEND THRU ROOF

M4M4

20"X20" INTAKE LOUVER

BACKDRAFT DAMPER TO SERVE DWH.

GREENHECK MODEL ESD, 4" DRAINABLE

BLADE OR EQUAL.

COORDINATE WITH ARCH FOR

INSTALLATION. PROVIDE INTAKE

AIR PER CODE. SEAL EXT WALL

WEATHERTIGHT.

M5M5

M6M6

MECHANICAL GENERAL NOTES:

10.

11.

IF COMPLIANCE WITH TWO OR MORE DIFFERING STANDARDS, REQUIREMENTS, DRAWINGS OR SPECIFICATIONS, OR ANY COMBINATION THEREOF, IS SPECIFIED AND THESE ESTABLISH DIFFERENT OR CONFLICTING REQUIREMENTS FOR MINIMUM QUANTITIES OR QUALITY LEVELS, COMPLY WITH THE MOST STRINGENT REQUIREMENT. THE MOST STRINGENT REQUIREMENT WILL BE THE BETTER QUALITY OR GREATER QUANTITY OF WORK, AND WILL TYPICALLY BE THE MORE EXPENSIVE OPTION. REFER UNCERTAINTIES AND REQUIREMENTS THAT ARE DIFFERENT, BUT APPARENTLY EQUAL, TO ENGINEER FOR A DECISION BEFORE

PROCEEDING.

DECISION BEFORE PROCEEDING.

DESIGN DOCUMENTS MUST BE REPRODUCED IN THEIR ENTIRETY, INCLUDING ALL PLANS, SPECIFICATIONS, AND FRONT END DOCUMENTS.

ONLY COMPLETE DOCUMENT SETS ARE TO BE DISTRIBUTED TO SUBCONTRACTORS AND SUPPLIERS OF THE CONTRACTOR DURING BIDDING OR CONSTRUCTION.

FAILURE TO REVIEW AND COMPLY WITH A FULL SET OF CONTRACT DOCUMENTS WILL NOT BE ACCEPTED AS A VALID REASON FOR FAILURE TO MEET THE

REQUIREMENTS OF THE PLANS AND SPECIFICATIONS.

ALL MECHANICAL WORK SHALL BE INSTALLED IN ACCORDANCE WITH LOCAL ORDINANCES, CODES, AND LAWS. FOR PURPOSES OF THIS DESIGN, THE CODES FOR

THE STATE OF MICHIGAN WERE USED AS THE BASIS.

MECHANICAL CONTRACTOR SHALL COORDINATE ROOF PENETRATIONS WITH ROOFING CONTRACTOR OR ROOFING MANUFACTURER TO AVOID DAMAGE TO

ROOFING SYSTEM.

COORDINATE LOCATIONS OF ALL DEVICES WITH ARCHITECTURAL, STRUCTURAL, CIVIL, INTERIORS, AND ELECTRICAL PRIOR TO ROUGH-IN. ALL CONFLICTS WITH FINISHES, ADJACENT CONSTRUCTION AND CONSTRUCTION DOCUMENTS ARE TO GENERATE AN RFI FROM THE MECHANICAL CONTRACTOR TO THE ENGINEER

PRIOR TO PROCEEDING AND COMPLETION OF WORK

ALL MECHANICAL EQUIPMENT SHALL BE PROVIDED WITH MOTOR STARTERS COMPATIBLE WITH CONTROLS SYSTEM. COORDINATE WITH CONTROLS AND

ELECTRICAL CONTRACTORS.

IN UNFINISHED AREAS, INSTALL ALL MECHANICAL CONTROL DEVICES (THERMOSTATS, ROOM SENSORS, REMOTE TEST STATIONS, SMOKE DAMPER INDICATORS, ETC.) RECESSED IN WEB OF COLUMNS TO PREVENT DAMAGE.

PROVIDE EMERGENCY SHUTOFF AT BOILER ROOM EXIT DOORS TO SHUTDOWN ALL BOILERS PER CSD-1 REQUIREMENTS.

W E

D B Y:

B Y:

D B Y:

W S

O M W

T O S

W S

Y C O

ISSUANCES

#DESCRIPTION DATE

NOT TO BE REPRODUCED OR DISTRIBUTED

WITHOUT PRIOR WRITTEN CONSENT.

PHASE

2/ /2 2:

Au to de sk D oc s:

Be nt on H ar bo r A re a Sc ho ol s Bo ile r R ep la ce m en t/

M .rv t

C he ck er

D es ig ne r

Ap pr ov er

ILE

O N

, B

O R, M

M-100

23-0327

ISSUED FOR BIDDING

26JAN2024ISSUED FOR BIDDING

H A N

A L P

1/4" = 1'-0"

MECHANICAL PLAN - BOILER ROOM

A01 ADDENDUM 01 15FEB2024

MECHANICAL KEYNOTES

KEY VALUE KEYNOTE TEXT

M1 10" EXHAUST FLUE AND 6" COMBUSTION AIR INTAKE THROUGH ROOF.

M2 INSTALL NEW BOILERS ON EXISTING 4" CONCRETE HOUSEKEEPING PAD, EXTEND EXISTING PAD AS REQUIRED. CONNECT PIPING TO EXISTING

STEAM MAIN. CONNECT TO EXISTING FEEDWATER SYSTEM.

M4 FIELD LOCATE NEW OWNER FURNISHED MODSYNC BOILER CONTROL PANEL FOR STEAM BOILERS. MOUNT ON WALL.

M5 EXISTING HEAT EXCHANGER, SUPPORT, AND HYDRONIC PIPING TO REMAIN. REVISE AS NECESSARY FOR NEW BOILER INSTALLATION.

M6 REFER TO ELECTRICAL DRAWINGS FOR BOILER EMERGENCY SHUTDOWN SWITCHES AND LOCATIONS.

A01

EXISTING WATER SERVICE ENTRANCE

AND PIPING TO REMAIN. CONNECT

TO SERVICE FOR BOILER MAKEUP.

Page 52 of 52 Addendum #1

File details come from the government source that posted it. Updated Apr 3, 2024.