Addendum #2 Complete - Bid #25-3 Royal Oak High School Boiler Replacement and Royal Oak Middle School Chilled Water Piping (3).pdf

ADDENDUM 2

Project: Royal Oak Schools – Bid #25-3 Royal Oak High School Boiler Replacement and Royal Oak

Middle School Chilled Water Piping

Bid Due date: Thursday, November 21, 2024 at 2:00 PM Local Time (REVISED in ADDENDUM #1)

I. General Information

1. For questions contact Mark Paulus at mark.paulus@royaloakschools.org or (248) 880-6791.

2. Any bidder wanting to visit the site, contact Mark Paulus at mark.paulus@royalschools.org or (248) 880-6791 to schedule a time. Bidders are not allowed to visit the building without an appointment.

3. Addendum #2 dated November 11, 2024, as prepared by Larkin Engineering LLC

II. Questions and Answers

Q1. Can you schedule an additional site visit?

A1. An additional site visit has been scheduled for Tuesday, November 12, 2024, at Noon at

Royal Oak High School 1500 Lexington Blvd, Royal Oak, MI 48073 at Lexington Blvd Door 1.

Q2. Will ASME welded joints be acceptable instead of Victaulic?

A2. Yes, welded joints are acceptable.

Q3. Are additional valves necessary to separate the heating and domestic hot water boiler to complete the work in phase 1?

A3. Existing valves will be used.

END

LARKIN ENGINEERING, LLC

3224 Rowley Rd, Williamston, MI 48895 Ph. (517) 290-7116

November 11, 2024

ADDENDUM NO. 2

TO THE CONTRACT DOCUMENTS FOR

ROYAL OAK PUBLIC SCHOOLS

ROYAL OAK HIGH SCHOOL BOILER REPLACEMENTS

ROYAL OAK MIDDLE SCHOOL CHILLED WATER PIPING MODIFICATIONS

ENGINEER: OWNER:

Jim Larkin Mark Paulus Larkin Engineering, LLC Owners Representative 3224 Rowley Road Royal Oak Public Schools Williamston, MI 48895 800 DeVillen Ave.

(517)290-7116 Royal Oak, MI 48073 jim@larkineng.org (248) 880-6791 mark.paulus@royaloakschools.org

PURPOSE:

This addendum is issued as a change to the original Contract Documents. Incorporate these changes into your bid pricing.

DESCRIPTION

SPECIFICATIONS

ITEM 1: Section 223000 – PLUMBING EQUIPMENT (Re-Issued)

A. Add specification for high efficiency, tank type, gas fired water heaters. See attached.

ITEM 2: Section 230900 – HVAC CONTROLS (Not Re-Issued)

A. Add paragraph 2.1 DDC Equipment, A. System Description, 6. As follows:

“6. The new water heaters (2) will be provided with a BacNet IP interface. The controls contractor shall connect to the water heater controller and provide a water heater graphic. Owner shall have the capability to start/stop each water heater, monitor all alarms, monitor and change the set point temperatures, and monitor firing rate.”

mailto:jim@larkineng.org

ITEM 3: NEW SPECIFICATION SECTIONS

A. Add the following specification section to the bid documents.

a. 220523.12 – Ball Valves for Plumbing Piping

b. 220523.14 – Check Valves for Plumbing Piping

c. 220529 – Hangers and Supports for Plumbing Piping and Equipment

d. 220553 – Identification for Plumbing Piping and Equipment

e. 220719 – Plumbing Piping Insulation

f. 221005 - Plumbing Piping

g. 232513 – Water Treatment for Closed Loop Hydronic Systems

DRAWINGS

ITEM 4: HIGH SCHOOL DRAWING SET (Re-Issued)

A. Drawings are being re-issued due to a change in the domestic water heating system.

B. Clarifications on the draining and refill of the heating hot water system are addressed.

C. System isolation valves were added to the heating hot water system.

END OF ADDENDUM N0. 2

GENERAL NOTES - MECHANICAL

1. ALL WORK SHALL COMPLY WITH APPLICABLE REQUIREMENTS OF THE STATE OF MICHIGAN AND THE 2015 MICHIGAN MECHANICAL CODE.

2. ALL PERMITS SHALL BE TAKEN OUT AND PAID FOR BY THE CONTRACTOR DIRECTLY RESPONSIBLE.

3. NO SUBSTITUTION SHALL BE MADE WITHOUT THE OWNERS AND ENGINEER'S WRITTEN APPROVAL.

4. THE OWNER MAY ORDER EXTRA WORK OR MAKE CHANGES BY ALTERING, ADDING TO, OR DEDUCTING FROM THE WORK, THE CONTRACT SUM BEING ADJUSTED ACCORDINGLY

5. ALL TRADES SHALL DO THEIR OWN CUTTING, FILLING, PATCHING, ETC. TO MAKE THE PARTS COME TOGETHER PROPERLY AND FIT TO RECEIVE OR BE RECEIVED BY WORK OF OTHER

TRADES.

6. ALL TRADES SHALL FURNISH ALL LABOR, EQUIPMENT, MATERIALS, AND PERFORM ALL WORK NECESSARY, INDICATED, REASONABLE, INFERRED OR REQUIRED BY ANY SCOPE OF WORK

FOR A COMPLETE PROPERLY FINISHED AND FULLY FUNCTIONAL JOB.

7. ALL TRADES SHALL, AT ALL TIMES, KEEP THE PREMISES FREE FROM ACCUMULATION OF WASTE MATERIALS OR RUBBISH CAUSED BY THEIR WORK.

8. CONTRACTOR SHALL VERIFY ALL CONDITIONS AT THE SITE AND REPORT ANY DISCREPANCIES TO THE ENGINEER BEFORE PROCEEDING WITH THE WORK.

9. THE ENGINEERS APPROVAL OF SHOP DRAWINGS SHALL NOT RELIEVE THE GENERAL CONTRACTOR OR SUBCONTRACTOR FROM RESPONSIBILITY FOR DEVIATIONS FROM THE DRAWINGS

OR SPECIFICATIONS UNLESS HE HAS, IN WRITING, CALLED THE ENGINEERS ATTENTION TO SUCH DEVIATIONS AT THE TIME OF SUBMISSIONS, NOR SHALL IT RELIEVE HIM FROM THE

RESPONSIBILITY FOR ERRORS OF ANY SORT IN THE SHOP DRAWINGS.

10. SHOULD THE CONTRACTOR ENCOUNTER CONFLICT BETWEEN THESE PLANS AND SPECIFICATIONS, EITHER AMONG THEMSELVES OR WITH THE REQUIREMENTS OF ANY AND ALL

REVIEWING AND PERMIT-ISSUING AGENCIES, HE/SHE SHALL SEEK CLARIFICATION IN WRITING FROM THIS ENGINEER BEFORE COMMENCEMENT OF CONSTRUCTION. FAILURE TO DO SO

SHALL BE AT THE SOLE EXPENSE TO THE CONTRACTOR.

11. UNLESS OTHERWISE NOTED THE CONTRACTOR SHALL FURNISH AS-BUILT DRAWINGS INDICTING ALL CHANGES AND DEVIATIONS FROM APPROVED DRAWINGS.

12. THE ENGINEER WILL NOT BE RESPONSIBLE FOR FIELD DESIGN CHANGES MADE BY THE CONTRACTOR WHERE THE ENGINEER HAS NOT APPROVED THESE DESIGN CHANGES.

13. ALL WORK SHALL BE IN STRICT ACCORDANCE WITH FEDERAL, STATE, AND LOCAL CODES.

14. APPLY AND CONSTRUCT ALL SYSTEMS AND MATERIALS ACCORDING TO EACH MANUFACTURERS' WRITTEN SPECIFICATIONS, INSTRUCTIONS AND RECOMMENDATIONS.

15. CONTRACTOR SHALL WARRANT ALL WORK FOR ONE (1) YEAR AGAINST DEFECTS IN MATERIALS AND LABOR. PROVIDED WRITTEN WARRANTIES AT WORK COMPLETION.

16. THESE DRAWINGS ARE DIAGRAMMATIC & INDICATE THE GENERAL EXTENT OF THE WORK. PROVIDE PLUMBING AND HVAC SYSTEMS COMPLETE PER SPECIFICATION, SMACNA STANDARDS, AND PER APPLICABLE CODES INCLUDING ALL NECESSARY OFFSETS, FITTINGS, SPECIAL RADIUS OR MITERED ELBOWS WHICH ARE REQUIRED DUE TO SPACE CONSTRAINTS OR OTHER

STRUCTURAL CONDITIONS.

17. CONTRACTOR SHALL COORDINATE HIS WORK WITH THE WORK OF ALL OTHER TRADES. VERIFY ALL CLEARANCES PRIOR TO THE FABRICATION OF ANY WORK.

18. DUCTWORK/PIPING SHALL NOT BE LOCATED OVER ELECTRICAL EQUIPMENT/PANELS. PROVIDE REQUIRED CLEARANCE IN FRONT OF ELECTRICAL EQUIPMENT. DUCTWORK/PIPING SHALL

NOT INTERFERE WITH ELECTRICAL EQUIPMENT CLEARANCE.

19. THE CONTRACTOR SHALL PROVIDE ALL MISCELLANEOUS SUPPORTING STEEL, ETC. FOR THE PROPER INSTALLATION OF ALL MECHANICAL SYSTEMS.

20. PIPING SHALL NOT BE INSTALLED IN A LOCATION THAT RESTRICTS THE ACCESS TO MECHANICAL DEVICES REQUIRING ACCESS.

21. FOR EQUIPMENT VALVING, COMPONENT, AND PIPING ARRANGEMENT, REFER TO PIPING DIAGRAMS AND DETAILS.

22. NOTIFY OWNER OF ANY PIPING OR DUCTWORK DEMOLITION THAT MAY AFFECT NORMAL OPERATION OF OTHER AREAS.

23. FIELD VERIFY LOCATIONS OF EXISTING PIPING THAT MAY CONFLICT WITH NEW CONSTRUCTION AND RELOCATE AS NEEDED

24. CONTRACTOR SHALL COORDINATE ALL WORK WITH OTHER DISCIPLINES PRIOR TO CONSTRUCTION TO AVOID CONFLICTS.

25. PROVIDE MANUAL AIR VENTS WITH 3/4” HOSE CONNECTION AT ALL HIGH POINTS.

26. OFFSET PIPING TO ACCOMMODATE LARGE DUCTWORK.

27. THE CONTRACTOR SHALL FIELD VERIFY THE SIZES, LOCATION, ELEVATIONS, AND DETAILS OF ALL EXISTING CONDITIONS THAT MAY AFFECT THE WORK.

28. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE MAINTAINING THE INTEGRITY OF ALL EQUIPMENT AND MATERIALS IN A “NEW” CONDITION DURING CONSTRUCTION.

29. ALL WORK SHALL BE PERFORMED BY LICENSED CONTRACTORS AND SUBCONTRACTORS AS REQUIRED BY LAW.

30. DRAWING INDICATE REQUIRED SIZES AND POINTS OF TERMINATION OF PIPES AND DUCTS AND SUGGESTED ROUTES. IT IS NOT INTENTION OF DRAWINGS TO INDICATE ALL NECESSARY

OFFSETS. INSTALL WORK IN MANNER TO CONFORM TO STRUCTURE, AVOID OBSTRUCTIONS, PRESERVE HEADROOM AND KEEP OPENINGS AND PASSAGEWAYS CLEAR. DO NOT SCALE

FROM DRAWINGS.

31. ANY INFORMATION FOUND ON THE DRAWINGS AND NOT IN THE SPECIFICATIONS, OR FOUND IN THE SPECIFICATIONS AND NOT IN THE DRAWINGS, SHALL BE CONSTRUED AS TO BE

INCLUDED IN BOTH THE SPECIFICATIONS AND THE DRAWINGS. ANY CONFLICT BETWEEN THE PLANS AND THE SPECIFICATIONS WILL BE INTERPRETED BY THE ENGINEER. IN THE EVENT OF

CONFLICT, FOR THE PURPOSE OF BIDDING, THE CONTRACTOR SHALL PRESUME THE MOST EXPENSIVE COMBINATION OF QUALITY AND QUANTITY OF WORK SHALL PREVAIL.

3224 ROWLEY RD. WILLIAMSTON MI 48895

EMAIL: JIM@LARKINENG.ORG

PH. (517) 290-7116

ROYAL OAK HIGH SCHOOL

BOILER REPLACEMENTS

1500 LEXINGTON BLVD.

ROYAL OAK, MI 48073

10/25/2024

CJL

JDL

TITLE SHEET

NTS

T-1

ROYAL OAK HIGH SCHOOL

1500 LEXINGTON BLVD, ROYAL OAK MI, 48073

INDEX OF DRAWINGS

T-1 TITLE SHEET

MD-1 ENLARGED BOILER ROOM - DEMOLITION PLAN

M-1 ENLARGED BOILER ROOM - NEW WORK PLAN

M-2 DOMESTIC HOT WATER PIPING DIAGRAMS

M-3 SCHEDULES & DETAILS

M-4 CONTROL SEQUENCE OF OPERATION

BOILER REPLACEMENTS

LOCATION MAP

AERIAL VIEW

BOILER ROOM

2 ADDENDUM #2 11/11/2024

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MISCELLANEOUS NOTES

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POINT OF CONNECTION BETWEEN NEW AND EXISTING

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POINT OF EXISTING TO REMAIN AND EXISTING TO BE REMOVED

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INDICATES PLAN NOTE

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INDICATES DEMOLITION NOTE

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DETAIL BUBBLE DETAIL NUMBER PAGE LOCATION

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INDICATES DIRECTION OF DETAIL SECTION

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TEMPERATURE CONTROL SYMBOLS

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TEMPERATURE SENSOR

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THERMOSTAT

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PROGRAMMABLE THERMOSTAT

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THERMOSTAT (W/ NIGHT SETBACK)

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ROOM SENSOR

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HUMIDSTAT

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PRESSURE GAUGE

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DAMPER (ELECTRIC OPERATION)

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DAMPER (PNEUMATIC OPERATION)

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DAMPER BLADES

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TEMPERATURE SENSOR WITH SUN SHEILD

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HVAC PIPING

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CHILLED WATER SUPPLY

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CHWS

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CHILLED WATER RETURN

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CHWR

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HEATING WATER SUPPLY

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HS

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HEATING WATER RETURN

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HR

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CONDENSATE DRAIN

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CD

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HVAC PIPING

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FLOW DIRECTION

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PIPING DROP

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PIPING RISE

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INLINE PIPING DROP

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INLINE PIPING DROP

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PIPING TEE

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PIPING ELBOW

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THERMOMETER

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INLINE PIPING DROP

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UNION

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PIPE ANCHOR

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PIPE GUIDE

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BACK FLOW PREVENTER

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PIPE CAP

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PIPE BREAK

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THERMOMETER WELL

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EXPANSION LOOP

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HVAC PIPING VALVES

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GATE VALVE

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GAS COCK

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CHECK VALVE

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BALANCE COCK

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CIRCUIT SETTER

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TWO WAY CONTROL VALVE

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THREE WAY CONTROL VALVE

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GLOBE VALVE

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BALL VALVE

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SOLENOID VALVE

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EXPANSION VALVE WITH THERMOSTATIC BULB

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PLUG VALVE

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BUTTERFLY VALVE

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RELIEF VALVE

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HOSE & DRAIN END VALVE

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PRESSURE RELIEF VALVE

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PRESSURE REDUCING VALVE

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TRIPLE DUTY VALVE

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BALANCE COCK

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STRAINER (BLOW OFF)

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MECHANICAL SYMBOLS

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ABBREVIATIONS

AutoCAD SHX Text B BOILER BOILER CA COMBUSTION AIR COMBUSTION AIR CW COLD WATER COLD WATER DWH DOMESTIC WATER HEATER DOMESTIC WATER HEATER EX EXISTING EXISTING EXP EXPANSION EXPANSION G GAS GAS HS HEATING WATER SUPPLY HEATING WATER SUPPLY HR HEATING WATER RETURN HEATING WATER RETURN HW HOT WATER HOT WATER HWR HOT WATER RETURN HOT WATER RETURN V VENT VENT VFD VARIABLE FREQUENCY DRIVEVARIABLE FREQUENCY DRIVE

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DATE

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DRAWN

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PROJECT NO.

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DATE

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DESCRIPTION

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NO.

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LARKIN ENGINEERING, LLC.

UP

MEZZANINE

ABOVE

VFDVFDVFDVFDVFD

HSP-1 HSP-1A HSP-2 HSP-3 HSP-3A

99999

H

S

H

R

H

S

EX. AIR

SEPARATOR

8"HS

8"CA

TO ROOF

8"CA

TO ROOF

B-1 B-2 B-3

8"CA

TO ROOF

B-4 B-5 B-6

8"CA

TO ROOF

8"CA

TO ROOF

8"CA

TO ROOF

EX. EXP TANK

H W

R

H W

R

C

W

H

W

0°)

EXP TANK

STORAGE

TANK

V

T

O

R

O

F

DWH-2

10"0 CA

TO ROOF

10"0 CA

TO ROOF

G

2" G

V

O

F

6" G

G

4" G

M

EX. NATURAL GAS

METER

O

F

O

F

2" G

2" G

10101010

2" G2" G

O

F

O

F

2" G

2" G

O

F

O

F

6 6 6 6

DWH-1

MECHANICAL DEMOLITION NOTES

1. REMOVE DOMESTIC WATER HEATER AND ALL

ASSOCIATED PIPING, VENTING, CONTROLS AND

ELECTRICAL.

2. DOMESTIC HOT WATER RETURN PIPING, PUMPS AND

CONTROLS SHALL REMAIN.

3. REMOVE THE DOMESTIC HOT WATER STORAGE

TANK, EXPANSION TANK AND ALL ASSOCIATED

PIPING.

4. EXISTING CONCRETE PAD TO REMAIN.

5. REMOVE 3-WAY VALVE AND PIPING AS INDICATED.

6. REMOVE BOILER, BOILER PUMP, ASSOCIATED PIPING,

CONTROLS AND ELECTRICAL.

7. THE EXISTING HOT WATER HEATING SYSTEM

CONTAINS A 30% PROPYLENE GLYCOL SOLUTION.

VERIFY THE EXISTING CONCENTRATION PRIOR TO

DRAINING SYSTEM INTO "TOTES" FOR REUSE.

ESTIMATED SYSTEM VOLUME IS 10,000 GALLONS.

8. REMOVE VENT OR COMBUSTION AIR DUCT FROM THE

BOILER TO TERMINATION ABOVE THE ROOF. UTILIZE

EXISTING ROOF OPENING FOR NEW BOILERS.

9. REMOVE THE BASE MOUNTED PUMP SUCTION

DIFFUSER, VIBRATION ISOLATOR, TRIPLE DUTY

VALVE, SHUT-OFF VALVES AND VFDs. REUSE

CONTROL AND POWER WIRING AT NEW PUMPS.

10. REMOVE GAS PIPING AS INDICATED. CAP UNUSED

PIPING, REMOVE VENT PIPING FROM REMOVED

PRESSURE REGULATORS.

11. REMOVE AIR SEPARATOR AND ALL SUCTION SIDE

PIPING TO PUMPS.

3224 ROWLEY RD. WILLIAMSTON MI 48895

EMAIL: JIM@LARKINENG.ORG

PH. (517) 290-7116

ROYAL OAK HIGH SCHOOL

BOILER REPLACEMENTS

1500 LEXINGTON BLVD.

ROYAL OAK, MI 48073

10/25/2024

CJL

JDL

ENLARGED BOILER ROOM

- DEMOLITION PLAN

"=1'0"

MD-1

ENLARGED BOILER ROOM - DEMOLITION PLAN

SCALE: 1/4"=1'0"1

2 ADDENDUM #2 11/11/2024

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DATE

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PROJECT NO.

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DATE

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DESCRIPTION

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NO.

MEZZANINE

ABOVE

VFDVFDVFDVFDVFD

HSP-1 HSP-1A HSP-2 HSP-3 HSP-3A

H

S

H

R

H

S

EX. AIR

SEPARATOR

8"HS

EX. EXP TANK

H W

R

H W

R

C

W

H

W

0°)

6" G

G

M

EX. NATURAL GAS

METER

44444

ET-1

H

R

8"HS

8"HR

6"HS

10"CA

3 3 3

V

V

V

B-3B-2B-1

3"G

3 3 3

3"G

3"G

6"HR 6"HR

EX FD

8"HS

1" DRAIN

H

W

C

W

H

W

C

W

C

W

H

W

C

A

C

A

DWH-2

6" V

G

G

2"G

DWH-1

MECHANICAL DEMOLITION NOTES

1. EXISTING CONCRETE PAD TO REMAIN.

2. TEMPORARILY REMOVE ALUMINUM FRAMED,

WINDOW SYSTEM FOR INSTALLATION OF BOILERS

AND DOMESTIC HOT WATER STORAGE TANK.

3. VENT OR COMBUSTION AIR DUCT UP THROUGH

EXISTING ROOF OPENING. TERMINATE ABOVE IN

ACCORDANCE WITH BOILER MANUFACTURERS

INSTALLATION REQUIREMENTS.

4. NEW PUMP AND VFD. PROVIDE NEW SUCTION

DIFFUSER, VIBRATION ISOLATION, TRIPLE DUTY

VALVE AND SHUT-OFF VALVES. RECONNECT TO

EXISTING POWER AND CONTROLS.

5. NEW GAS SHUT-OFF VALVE AND PRESSURE

REGULATOR. REGULATOR SHALL BE SIZED FOR 4000

CFH, 2 PSI INLET AND 12" W.C. OUTLET FOR EACH

BOILER AND 1500 CFH, 2 PSI INLET, 12"WC OUTLET

FOR THE WATER HEATERS.

6. NEW GAS HEADER.

7. REPLACE THE BLADDER AT THE EXISTING BELL &

GOSSETT B-3000 EXPANSION TANK.

8. NEW BOILER AND BOILER PUMP. CONNECT TO

EXISTING BOILER AND PUMP ELECTRICAL CIRCUITS.

9. PROVIDE AN EMERGENCY STOP BUTTON AT EACH

BOILER ROOM EXIT. WIRE "E-STOP" BUTTON TO

SHUT-DOWN BOILERS WHEN ACTIVATED.

10. EXTEND THE EXISTING 4" HOUSEKEEPING PAD TO

SUPPORT THE NEW WATER HEATERS.

11. EXTEND A 120V, 15A CIRCUIT FROM THE NEAREST

PANEL TO THE WATER HEATER CONTROLLER.

12. NEW AIR/DIRT SEPARATOR WITH MAGNET. B&G

MODEL CRS-8F-HVMAG. PROVIDE AN AIR VENT, SKIM

VALVE AND BLOW DOWN VALVE. BOTTOM AT 6'-0" AFF

MINIMUM.

13. DRAIN AND REFILL THE HOT WATER HEATING

SYSTEM AS REQUIRED. PROVIDE ADDITIONAL

PROPYLENE GLYCOL AS REQUIRED TO MAINTAIN A

30% SOLUTION. PRIOR TO BOILER AND BOILER PUMP

OPERATION, FLUSH THE SYSTEM AND RUN MAIN

PUMPS THROUGH THE EXISTING SIDESTREAM FILTER

FOR 48 HOURS.

14. NEW BUTTERFLY SYSTEM ISOLATION VALVE.

3224 ROWLEY RD. WILLIAMSTON MI 48895

EMAIL: JIM@LARKINENG.ORG

PH. (517) 290-7116

ROYAL OAK HIGH SCHOOL

BOILER REPLACEMENTS

1500 LEXINGTON BLVD.

ROYAL OAK, MI 48073

10/25/2024

CJL

JDL

ENLARGED BOILER ROOM

- NEW WORK PLAN

"=1'0"

M-1

ENLARGED BOILER ROOM - NEW WORK PLAN

SCALE: 1/4"=1'0"1

2 ADDENDUM #2 11/11/2024

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DATE

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NO.

1. REMOVE WATER HEATER AND ASSOCIATED POWER,

CONTROLS, PUMP, PIPING, NATURAL GAS, VENTING

AND COMBUSTION AIR.

2. REMOVE PIPING AS INDICATED.

3. REMOVE THE STORAGE TANK, EXPANSION TANK AND

ASSOCIATED PIPING.

4. EXISTING HOT WATER RETURN PUMPS AND PIPING TO

REMAIN.

5. EXISTING CONCRETE PAD TO REMAIN.

DEMOLITION NOTES

1. RELIEF VALVE DRAIN. EXTEND TO NEAREST FLOOR

DRAIN.

2. HOSE END DRAIN.

3. NEW EXPANSION TANK "ET-1" EQUAL TO B&G PT-60V, 34

GAL TANK VOLUME, 6 GAL ACCEPTANCE VOLUME.

4. CONDENSATE NEUTRALIZATION KIT. TYPICAL OF 2.

DRAIN TO NEAREST FLOOR DRAIN.

NEW WORK NOTES

3224 ROWLEY RD. WILLIAMSTON MI 48895

EMAIL: JIM@LARKINENG.ORG

PH. (517) 290-7116

ROYAL OAK HIGH SCHOOL

BOILER REPLACEMENTS

1500 LEXINGTON BLVD.

ROYAL OAK, MI 48073

10/25/2024

CJL

JDL

DOMESTIC HOT WATER

PIPING DIAGRAMS

NTS

M-2

DOMESTIC WATER HEATERS PIPING DIAGRAM - DEMOLITION

SCALE: NTS1

DOMESTIC WATER HEATERS PIPING DIAGRAM - NEW WORK

SCALE: NTS1

2 ADDENDUM #2 11/11/2024

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EXISTING DWH-1

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FLOOR

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EXISTING DWH-2

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2 " HWR12" HWR

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2 " HWS12" HWS

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2 " HWR12" HWR

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EXISTING STORAGE TANK

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EX EXPANSION TANK

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EX HWR PUMP(2)

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HWR

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140 HWR

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3"CW

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3"HW

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140 HWR

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HWR

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EXPANSION TANK

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HWR

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140 HWR

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3"CW

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DWH-2

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THERMOMETER(TYP)

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140 HWR

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HWR

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ET-1

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DWH-1

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2"CW

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2"CW

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3"HW

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2"HW

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2"HW

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3"HW

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FLOOR

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1. SENSOR WIRED TO NEW BOILER CONTROLS.

2. PUMP "START-STOP" WIRED TO NEW BOILER

CONTROLS. PUMPS SHALL OPERATE IN PARALLEL.

PUMP SPEED AND STAGING SHALL BE CONTROLLED

FROM EXISTING BMS. CONNECT EXISTING CONTROLS

TO NEW PUMPS.

3. BOILER PUMP CONTROLLED BY NEW BOILER

CONTROLS.

4. REPLACE BLADDER AT EXISTING B&G B-3000

EXPANSION TANK.

5. PROVIDE AND INSTALL ALL SENSOR, PUMP, AND

BOILER CONTROL WIRING TO ENABLE THE NEW BOILER

SYSTEM TO OPERATE AS A STAND ALONE SYSTEM.

ALL CONTROL WIRING SHALL BE IN CONDUIT.

6. INSTALL AN OUTDOOR AIR TEMPERATURE SENSOR ON

THE NORTH WALL OF THE BUILDING. WIRE TO BOILER

CONTROLS.

7. NOT USED

8. NOT USED

9. EXTEND A DRAIN LINE FROM THE RELIEF VALVE TO THE

NEAREST FLOOR DRAIN.

10. LOCATE ALL FITTINGS AND CONNECTIONS (IE. UNIONS ,

ELBOWS, ELECTRICAL) A MINIMUM OF 6" AWAY FROM

REMOVABLE BOILER SIDE PANELS.

BOILER ROOM NOTES

BOILER SCHEDULE

NOTES:

1. MODEL NUMBERS BASED ON AERCO

2. PROVIDE AND INSTALL CONDENSATE NEUTRALIZATION KIT.

3. PROVIDE AND INSTALL 12" DIAMETER VENT. VENT MATERIAL SHALL BE

IN ACCORDANCE WITH BOILER MANUFACTURER'S REQUIREMENTS.

4. PROVIDE AND INSTALL 10" DIAMETER PVC COMBUSTION AIR INTAKE.

5. PROVIDE AND INSTALL SUPPLY WATER AND OUTSIDE AIR

TEMPERATURE SENSORS AND WIRING.

6. PROVIDE A BACNET / IP INTERFACE.

7. PROVIDE A BOILER SEQUENCING PANEL THAT SHALL INITIATE

OPERATION OF BOILERS, BOILER PUMPS, SYSTEM PUMPS, DHW HEAT

EXCHANGER PUMP AND DHW STORAGE TANK PUMP.

TAG QUANTITY

INPUT

MBH

EWT (F)

FLOW RATE

(GPM)

MODEL LOCATION TYPE

FLUE

SIZE

OUTPUT

MBH

LWT (F)

INTERNAL

PRESSURE DROP

ELECTRICAL

VOLTS PHASE MCA

NOTES

PUMP SCHEDULE

NOTES:

1. BASED ON BELL & GOSSETT.

2. BASED ON GRUNDFOS.

3. FLUID IS 30% PROPYLENE GLYCOL.

TAG

BP-1, BP-2, BP-3 BOILER

SERVES SIZE

45-375TPE3 80-180

MODEL

BOILER RM

LOCATION TYPE

IN-LINE

PUMP

GPM HEAD(FT)

270 22'

NOTES

2,3

MOTOR

RPM HP VOLTAGE

2700 3.0 208

PHASE

DISC.

E.C.

STRTR.

E.C.

HSP-1, HSP-1A,

HSP-2

HEATING 3GBe-1510BOILER RM BASE 420 115' 1,31800 20 208 3 E.C. E.C.

B-1,B-2,B-3 3 4000 110 270BMK BOILER RMCONDENSING 12" 3760 140 7 FT 208 3 1-723

WATER HEATER SCHEDULE

NOTES:

1. PROVIDE ACID NEUTRALIZATION KIT.

2. PROVIDE BACNET MSTP FOR CONNECTION TO THE EXISTING BUILDING

AUTOMATION SYSTEM

TAG

DWH-1 PV1

MANUF.

75L225A-PVX

MODEL

ELECTRICAL

120V / 1PH / 11A

HSP-3, HSP-3A HEATING e-1510BOILER RM BASE 550 140' 1,31800 20 208 3 E.C. E.C.

3GB

INPUT

(MBH)

TANK SIZE

(GAL)

EWT

LWT

1, 2

NOTES

RECOVERY (GPH) @

40 EWT AND 140 LWT

DWH-2 PV1 75L225A-PVX 120V / 1PH / 11A750 40 140 1, 2225873

3224 ROWLEY RD. WILLIAMSTON MI 48895

EMAIL: JIM@LARKINENG.ORG

PH. (517) 290-7116

ROYAL OAK HIGH SCHOOL

BOILER REPLACEMENTS

1500 LEXINGTON BLVD.

ROYAL OAK, MI 48073

10/25/2024

CJL

JDL

SCHEDULES &

DETAILS

NTS

M-3

BOILER PIPING SCHEMATIC

SCALE: NTS3

INLINE PUMP DETAIL

SCALE: NTS2

VENTING/COMBUSTION

(VERIFY WITH BOILER MANUFACTURER)1

AIR TERMINATION DETAIL

2 ADDENDUM #2 11/11/2024

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BP-2

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BP-1

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6" HS

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X-FD

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PETE'S PLUG (TYP.)

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8"HS

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HSP-3A

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2'-0" MAX

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CONE FLASHING SECURED TO CHIMNEY CAP (TYP) (TYP)

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VENT

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BIRD SCREEN

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STORM COLLAR (TYP)

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PVC COMBUSTION AIR INTAKE

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NO LOSS VENT CAP

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ALUMINUM CHIMNEY CAP

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CHIMNEY WALL

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SUPPORT CAP AS NEEDED

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UNION (TYP)

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GENERAL NOTES - CONTROLS

1. THESE GENERAL NOTES SHALL BE APPLICABLE FOR ALL DRAWINGS.

2. THE TEMPERATURE CONTROLS (TC) CONTRACTOR SHALL BE RESPONSIBLE TO COMPLY TO ALL APPLICABLE CODES AND STANDARDS.

3. "PROVIDE' IS DEFINED AS “FURNISH AND INSTALL”.

4. TC CONTRACTOR SHALL BE RESPONSIBLE FOR A COMPLETE WORKING SYSTEM, INCLUDING FUNCTIONAL TESTING FOLLOWING THE REPLACEMENT OF

CONTROLLERS, SENSORS, AND MOTORIZED OPERATORS OF DAMPERS AND VALVES.

5. ALL CONTROL SCHEMATICS AND WIRING DIAGRAMS ARE FOR THE CLARIFICATION OF EQUIPMENT INTERLOCKING FUNCTIONS AND THE INTERFACE OF

VARIOUS CONTRACTORS WORK AND SHALL NOT BE MISTAKEN AS SHOP DRAWINGS FOR ACTUAL INSTALLATION.

6. TC CONTRACTOR SHALL PROVIDE DDC CONTROLLERS AS REQUIRED TO MEET INTENT OF DESIGN DOCUMENTS. REFER TO THE PLANS FOR THE DDC

FUNCTIONS THAT APPLY TO EACH MECHANICAL SYSTEM.

7. ALL TC PROVIDED COMPONENTS, AND ALL TC CONTRACTOR INSTALLED WIRING AND INSTRUMENTATION SHALL BE LABELED PER SPECIFICATIONS.

8. TC CONTRACTOR SHALL REMOVE ALL EXISTING CONTROL COMPONENTS, INCLUDING INSTRUMENTATION, TUBING, AND WIRING ABANDONED DUE TO

INSTALLATION OF NEW SYSTEMS AND ASSOCIATED CONTROLS.

9. ALL WIRING AND SYSTEM CONTROL VOLTAGES SHALL BE IN ACCORDANCE WITH THE EQUIPMENT MANUFACTURER'S RECOMMENDATION AND THE

SPECIFICATIONS,

10. ALL DDC AND CONTROL INTERLOCK WIRING SHALL BE BY TC CONTRACTOR. TC CONTRACTOR SHALL FIELD VERIFY EXISTING MOTOR STARTERS FOR

INTERFACE WIRING REQUIREMENTS AND TERMINATION POINTS AS REQUIRED.

11. ALL DDC SIGNAL WIRING BETWEEN COMPONENTS SHALL BE INSTALLED WITHOUT INTERMEDIATE STOPS, UNLESS IT IS PART OF THE SYSTEM

INTEGRATION. NO DATA COMMUNICATIONS WIRE SPLICING IS ALLOWED.

12. ALL ELECTRICAL WIRING AND RACEWAY SYSTEMS SHALL COMPLY WITH SPECIFICATION REQUIREMENTS. WHERE RACEWAY IS REQUIRED, TWO

SEPARATE ELECTRICAL RACEWAY SYSTEMS SHALL BE PR0VIDED: ONE FOR A.C. WIRING AND THE OTHER FOR D.C. WIRING.

13. ALL 24V CONTROL WIRING SHALL BE CONCEALED IN WALLS AND ABOVE CEILING IN FINISHED AREA WHERE POSSIBLE. EXPOSED WORK IN

NON-MECHANICAL ROOM AREAS SHALL BE INSTALLED IN SURFACE METAL RACEWAY PERPENDICULAR OR PARALLEL TO WALLS, CEILINGS, OR

STRUCTURAL MEMBERS. WIRING ABOVE CEILINGS SHALL BE SECURED WITH WIRE TIES EVERY FIVE FEET. EXISTING RACEWAYS MAY BE REUSED WITH

OWNER'S APPROVAL.

14. ALL 24V CONTROL WIRING IN MECHANICAL ROOMS SHALL BE INSTALLED IN CONDUIT OR EMT TO THE EIGHT FOOT LENGTH. CONDUIT SLEEVES OR

ENDS ARE TO BE FITTED WITH PLASTIC BUSHINGS TO PREVENT DAMAGE TO CONDUCTORS.

15. ALL 120V WRING SHALL BE INSTALLED IN CONDUIT OR EMT. SIZE SHALL BE L” MINIMUM.

16. CONDUIT OR EMT SHALL BE EXPOSED ONLY IN MECHANICAL AND ELECTRICAL ROOMS.

17. SIZE CONDUIT OR EMT TO BE FILLED AT 40% CAPACITY.

18. TC CONTRACTOR SHALL BE RESPONSIBLE FOR ALL POWER SUPPLIES REQUIRED FOR TC SYSTEM UNLESS OTHERWISE NOTED.

19. POWER SUPPLIES (120VAC) REQUIRED FOR NEW TC COMPONENTS SHALL BE FROM EXISTING PANELBOARDS. SPARE CIRCUIT BREAKERS MAY BE

USED WHEN AVAILABLE. IN PANELBOARDS THAT DO NOT HAVE. SPARE CIRCUIT BREAKERS, NEW BREAKERS TO MATCH EXISTING SHALL BE INSTALLED

IN BLANKED OUT SPACES PROVIDED. CIRCUIT BREAKERS SHALL BE BOLT ON TYPE WITH PROPER INTERRUPTING RATING.

20. TC CONTRACTOR SHALL VERIFY EXACT LOCATION OF ALL FIELD MOUNTED COMPONENTS.

21. ANY NEW SPACE TEMPERATURE SENSORS SHALL BE MOUNTED 4'-0” ABOVE FINISHED FLOOR. FOR EXISTING THERMOSTAT AND TEMPERATURE

SENSOR REPLACEMENTS, TC CONTRACTOR SHALL MOUNT NEW SENSORS AT SAME LOCATION REGARDLESS OF HEIGHT REQUIREMENT.

22. TC CONTRACTOR SHALL PROVIDE AUXILIARY PANELS FOR REQUIRED PANEL MOUNTED EQUIPMENT SUCH AS RELAYS, EP'S, TRANSDUCERS, CONTROL

TRANSFORMERS. ETC. AUXILIARY PANELS SHALL BE LOCATED NEXT TO ASSOCIATED DDC PANEL.

23. NEW REMOTELY MOUNTED FIELD DEVICES SUCH AS RELAYS, CONTROL TRANSFORMERS, ETC. SHALL BE HOUSED IN AN ENCLOSURE PROVIDED BY

THE TC CONTRACTOR.

24. CONTROL TRANSFORMERS WHEN REQUIRED SHALL BE SIZED FOR 150% OF AC1UAL LOAD.

25. FREEZE-STATS, WHERE REQUIRED, SHALL BE MOUNTED ON UPSTREAM FACE OF COOLING COILS. FREEZESTAT QUANTITY SHALL BE ONE PER 20 SQ.

FT. OF CROSS SECTIONAL AREA.

26. CURRENT SWITCHES/SENSORS USED FOR OPERATIONAL STATUS SHALL HAVE CURRENT THRESHOLD SETPOINT ADJUSTED TO INDICATE BELT OR

DRIVE FAILURE.

27. ALL NEW CONTROL VALVES IDENTIFIED ON TC DRAWINGS SHALL BE FURNISHED BY TC CONTRACTOR.

28. TC CONTRACTOR SHALL REUSE THERMOWELLS FOR EXISTING DDC SYSTEM COMPONENTS REPLACEMENTS. TC CONTRACTOR SHALL FIELD VERIFY

EXISTING SIZES AND THREADED CONNECTIONS AS REQUIRED. STRAP-ON TEMPERATURE SENSOR MAY BE USED FOR PRIMARY HEATING OR COOLING

LOOP SUPPLY AND RETURN TEMPS.

29. ALL INSTRUMENTATION TUBING THAT MAY BE REQUIRED FOR DPS AND DPT COMPONENT INSTALLATIONS SHALL BE PROVIDED BY TC CONTRACTOR.

30. TCC SHALL BE RESPONSIBLE FOR INTERFACING STAND-ALONE BOILER AND PUMP CONTROLS TO EXISTING BUILDING CONTROL SYSTEM.

BUILDING HEATING SYSTEM

SEQUENCE OF OPERATION

BOILER OPERATING CONTROLS SHALL INCLUDE THE FOLLOWING DEVICES AND FEATURES:

1. SEQUENCE OF OPERATION (HIGH-EFFICIENCY CONDENSING BOILER SYSTEM WITH SMART ON-BOARD CONTROLS): SEE MANUFACTURERS

INTERNAL BOILER OPERATING CONTROLS AND SEQUENCE OF OPERATION. BOILERS SHALL HAVE INTERNAL VARIABLE FLOW CONTROLS WHICH

WILL MANAGE THE FLOW OF THE BOILER PRIMARY CIRCULATING PUMP.

2. THE NEW HIGH EFFICIENCY CONDENSING BOILERS SHALL BE CONTROLLED BY INTERNAL RESET CONTROLS. A COMMUNICATIONS CONTROL CARD

PROVIDED BY THE MANUFACTURER AND MOUNTED IN THE BOILER SHALL PROVIDE DIGITAL COMMUNICATIONS WITH THE BMS AND ACTIVATE THE

BOILER THROUGH A DIGITAL ENABLE/DISABLE COMMAND, WITH BOILER STATUS, OPERATIONS, AND ALARMS OF THE BOILER READ BY THE BMS

THROUGH DDC OUTPUT FROM THE BOILER.

BOILER AND HEATING CONTROL: THE HI-EFFICIENCY CONDENSING BOILER SHALL BE EQUIPPED WITH STAND-ALONE BOILER SYSTEM OA START-UP, HOT

WATER TEMPERATURE RESET, AND START/STOP CONTROL OF BOILER CIRCULATING PUMPS. WHEN THE BOILER OA START-UP SETPOINT IS REACHED, AS

PROVIDED THRU THE DEDICATED BOILER SYSTEM OA SENSOR, THE INTERNAL PRIMARY BOILER CONTROLLER AT THE PRIMARY BOILER CONTROL PANEL

INITIATES THE BOILER START-UP SEQUENCE FOR THE BOILER (PROVIDED BY THE MANUFACTURER).

PRIMARY HYDRONIC HEATING SYSTEM CONTROL- FACTORY START-UP AND INITIAL SET-UP

1. INITIAL PRIMARY RESET SCHEDULE TO BE 110° TO 160° F HOT WATER SUPPLY TEMPERATURE AS OUTSIDE AIR VARIES FROM 60° F TO 10° F

(ADJUSTABLE)

MAIN CIRCULATING PUMPS: MAIN CIRCULATION PUMPS HSP-1, HSP-1A, HSP-2, HSP-3 AND HSP-3A, SHALL BE RECONNECTED TO THE EXISTING CONTROLS.

THE SEQUENCE OF OPERATION AND GRAPHICS SHALL NOT CHANGE.

MAIN HEATING PUMP CONTROL: HOT-WATER HEATING PUMPS SHALL BE STARTED BY THE BAS BASED ON OUTSIDE AIR TEMPERATURE. THE HOT WATER

PUMPS SHALL START AT 60° F OUTSIDE AIR TEMPERATURE (ADJUSTABLE). PUMP SPEED SHALL BE CONTROLLED THROUGH THEIR RESPECTIVE VFD'S.

THE LEAD (MASTER) BOILER, ON MANUFACTURER SUPPLIED BOILER CONTROL PANEL, WILL CONTROL THE FIRING RATE OF EACH BOILER, FLOW RATE

THROUGH THE BOILER WITH THE VARIABLE SPEED BOILER PUMPS, AND SEQUENCE OF ALL BOILERS ON THE SYSTEM FROM THE MASTER BOILER

ON-BOARD CONTROLS.

BURNER OPERATING CONTROLS: TO MAINTAIN SAFE OPERATING CONDITIONS, INTERNAL BURNER SAFETY CONTROLS LIMIT BURNER OPERATING.

BUILDING AUTOMATION SYSTEM INTERFACE: FACTORY SHALL PROVIDE/ INSTALL ALL HARDWARE AND SOFTWARE TO ENABLE BUILDING AUTOMATION

SYSTEM TO MONITOR, CONTROL, AND DISPLAY BOILER STATUS AND ALARMS THROUGH BOILER DDC INTERFACE COMMUNICATIONS CARD.

A COMMUNICATION INTERFACE WITH BUILDING AUTOMATION SYSTEM SHALL ENABLE BUILDING AUTOMATION SYSTEM OPERATOR TO REMOTELY

CONTROL AND MONITOR THE BOILER FROM AN OPERATOR WORKSTATION. CONTROL FEATURES AVAILABLE, AND MONITORING POINTS DISPLAYED, LOCALLY AT BOILER CONTROL PANEL SHALL BE AVAILABLE THROUGH BUILDING AUTOMATION SYSTEM.

MONITORING POINTS, INCLUDING, BUT NOT LIMITED TO:

1. BOILER STATUS, ENABLE/DISABLE

2. BOILER ENABLE TEMPERATURE

3. BOILER ALARM OR FAULT STATUS

4. BOILER SUPPLY TEMPERATURE FOR EACH BOILER

5. PERCENT(%) BURNER OPERATION FOR EACH BOILER

6. BOILER EXHAUST AIR TEMPERATURE

7. BP-1 VSD ALARM

8. BP-2 VSD ALARM

9. BP-3 VSD ALARM

10. VSD / MOTOR SPEED FOR EACH PRIMARY AND SECONDARY HWH PUMP

11. HOT WATER SUPPLY TEMPERATURE AND RETURN WATER TEMPERATURE FOR MAIN HOT WATER LOOP.

12. WATER DIFFERENTIAL TEMPERATURE BETWEEN SUPPLY AND RETURN.

PRIMARY RESET SCHEDULE

OA TEMP HOT WATER SUPPLY TEMP

60 ° 110 °

10 ° 160 °

3224 ROWLEY RD. WILLIAMSTON MI 48895

EMAIL: JIM@LARKINENG.ORG

PH. (517) 290-7116

ROYAL OAK HIGH SCHOOL

BOILER REPLACEMENTS

1500 LEXINGTON BLVD.

ROYAL OAK, MI 48073

10/25/2024

CJL

JDL

CONTROL

SEQUENCE OF

OPERATION

NTS

M-4

2 ADDENDUM #2 11/11/2024

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ROYAL OAK PUBLIC SCHOOLS MIDDLE SCHOOL CHILLED WATER PIPING

HIGH SCHOOL BOILER REPLACEMENTS

220523.12-1

SECTION 220523.12 - BALL VALVES FOR PLUMBING PIPING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Brass ball valves.

2. Bronze ball valves.

1.2 ACTION SUBMITTALS

A. Product Data: For each type of valve.

1. Certification that products comply with NSF 61 Annex G and NSF 372.

PART 2 - PRODUCTS

2.1 GENERAL REQUIREMENTS FOR VALVES

A. Source Limitations for Valves: Obtain each type of valve from single source from single manufacturer.

B. ASME Compliance:

1. ASME B1.20.1 for threads for threaded end valves.

2. ASME B16.10 and ASME B16.34 for ferrous valve dimensions and design criteria.

3. ASME B16.18 for solder-joint connections.

4. ASME B31.9 for building services piping valves.

C. NSF Compliance: NSF 61 Annex G and NSF 372 for valve materials for potable-water service.

D. Bronze valves shall be made with dezincification-resistant materials. Bronze valves made with copper alloy (brass) containing more than 15 percent zinc are not permitted.

E. Valve Pressure-Temperature Ratings: Not less than indicated and as required for system pressures and temperatures.

F. Valve Sizes: Same as upstream piping unless otherwise indicated.

ROYAL OAK PUBLIC SCHOOLS MIDDLE SCHOOL CHILLED WATER PIPING

220523.12-2

G. Valve Actuator Types:

1. Gear Actuator: For quarter-turn valves NPS 4and larger.

2. Handlever: For quarter-turn valves smaller than NPS 4.

H. Valves in Insulated Piping:

1. Include 2-inch stem extensions.

2. Extended operating handles of nonthermal-conductive material and protective sleeves that allow operation of valves without breaking vapor seals or disturbing insulation.

3. Memory stops that are fully adjustable after insulation is applied.

2.2 BRASS BALL VALVES

A. Brass Ball Valves, One-Piece:

1. Description:

a. Standard: MSS SP-110.

b. CWP Rating: 400 psig.

c. Body Design: One piece.

d. Body Material: Forged brass or bronze.

e. Ends: Threaded and soldered.

f. Seats: PTFE.

g. Stem: Brass or stainless steel.

h. Ball: Chrome-plated brass or stainless steel.

i. Port: Reduced.

B. Brass Ball Valves, Two-Piece with Full Port and Brass Trim:

b. CWP Rating: 600 psig.

c. Body Design: Two piece.

d. Body Material: Forged brass.

e. Ends: Threaded and soldered.

f. Seats: PTFE.

g. Stem: Brass.

h. Ball: Chrome-plated brass.

i. Port: Full.

C. Brass Ball Valves, Two-Piece with Regular Port and Brass Trim:

ROYAL OAK PUBLIC SCHOOLS MIDDLE SCHOOL CHILLED WATER PIPING

220523.12-3

b. CWP Rating: 600 psig.

c. Body Design: Two piece.

d. Body Material: Forged brass.

e. Ends: Threaded and soldered.

f. Seats: PTFE.

g. Stem: Brass.

h. Ball: Chrome-plated brass.

i. Port: Regular.

2.3 BRONZE BALL VALVES

A. Bronze Ball Valves, One-Piece:

b. CWP Rating: 400 psig.

c. Body Design: One piece.

d. Body Material: Bronze.

e. Ends: Threaded.

f. Seats: PTFE.

g. Stem: Bronze.

h. Ball: Chrome-plated brass.

i. Port: Reduced.

B. Bronze Ball Valves, Two-Piece with Full Port, and Bronze or Brass Trim

b. CWP Rating: 600 psig.

c. Body Design: Two piece.

d. Body Material: Bronze.

e. Ends: Threaded and soldered.

f. Seats: PTFE.

g. Stem: Bronze or brass.

h. Ball: Chrome-plated brass.

i. Port: Full.

ROYAL OAK PUBLIC SCHOOLS MIDDLE SCHOOL CHILLED WATER PIPING

220523.12-4

C. Bronze Ball Valves, Two-Piece with Regular Port and Bronze or Brass Trim:

b. CWP Rating: 600 psig.

c. Body Design: Two piece.

d. Body Material: Bronze.

e. Ends: Threaded.

f. Seats: PTFE.

g. Stem: Bronze or brass.

h. Ball: Chrome-plated brass.

i. Port: Regular.

PART 3 - EXECUTION

3.1 VALVE INSTALLATION

A. Install valves with unions or flanges at each piece of equipment arranged to allow service, maintenance, and equipment removal without system shutdown.

B. Locate valves for easy access and provide separate support where necessary.

C. Install valves in horizontal piping with stem at or above center of pipe.

D. Install valves in position to allow full stem movement.

3.2 GENERAL REQUIREMENTS FOR VALVE APPLICATIONS

A. If valves with specified CWP ratings are unavailable, the same types of valves with higher CWP ratings may be substituted.

B. Select valves with the following end connections:

1. For Copper Tubing, NPS 2 and Smaller: Threaded ends except where solder-joint valve-end option is indicated in valve schedules below.

2. For Steel Piping, NPS 2 and Smaller: Threaded ends.

3.3 DOMESTIC HOT- AND COLD-WATER VALVE SCHEDULE

A. Pipe NPS 2 and Smaller:

ROYAL OAK PUBLIC SCHOOLS MIDDLE SCHOOL CHILLED WATER PIPING

220523.12-5

1. Bronze and Brass Valves: May be provided with solder-joint ends instead of threaded ends.

2. Brass ball valve, one piece.

3. Bronze ball valve, one piece with bronze trim.

4. Brass ball valves, two-piece with full port and brass trim.

5. Bronze ball valves, two-piece with full port and bronze or brass trim.

END OF SECTION 220523.12

ROYAL OAK PUBLIC SCHOOLS MIDDLE SCHOOL CHILLED WATER PIPING

220523.14-1

SECTION 220523.14 - CHECK VALVES FOR PLUMBING PIPING

1.1 SUMMARY

A. Section Includes:

1. Bronze swing check valves.

1.2 ACTION SUBMITTALS

A. Product Data: For each type of valve.

1. Certification that products comply with NSF 61 and NSF 372.

PART 2 - PRODUCTS

2.1 GENERAL REQUIREMENTS FOR VALVES

A. Source Limitations for Valves: Obtain each type of valve from single source from single manufacturer.

B. ASME Compliance:

1. ASME B1.20.1 for threads for threaded end valves.

2. ASME B16.1 for flanges on iron valves.

3. ASME B16.10 and ASME B16.34 for ferrous valve dimensions and design criteria.

4. ASME B16.18 for solder joint.

5. ASME B31.9 for building services piping valves.

C. Drinking Water System Components - Health Effects and Drinking Water System Components

- Lead Content Compliance: NSF 61 and NSF 372.

D. Bronze valves shall be made with dezincification-resistant materials. Bronze valves made with copper alloy (brass) containing more than 15 percent zinc are not permitted.

E. Valve Pressure-Temperature Ratings: Not less than indicated and as required for system pressures and temperatures.

F. Valve Sizes: Same as upstream piping unless otherwise indicated.

ROYAL OAK PUBLIC SCHOOLS MIDDLE SCHOOL CHILLED WATER PIPING

220523.14-2

G. Valve Bypass and Drain Connections: MSS SP-45.

2.2 BRONZE SWING CHECK VALVES

A. Bronze Swing Check Valves with Bronze Disc, Class 125:

a. Standard: MSS SP-80, Type 3.

b. CWP Rating: 200 psig.

c. Body Design: Horizontal flow.

d. Body Material: ASTM B 62, bronze.

e. Ends: Threaded or soldered. See valve schedule articles.

f. Disc: Bronze.

B. Bronze Swing Check Valves with Nonmetallic Disc, Class 125:

a. Standard: MSS SP-80, Type 4.

b. CWP Rating: 200 psig.

c. Body Design: Horizontal flow.

d. Body Material: ASTM B 62, bronze.

e. Ends: Threaded or soldered. See valve schedule articles.

f. Disc: PTFE.

PART 3 - EXECUTION

3.1 VALVE INSTALLATION

A. Install valves with unions or flanges at each piece of equipment arranged to allow service, maintenance, and equipment removal without system shutdown.

B. Locate valves for easy access and provide separate support where necessary.

C. Install valves in horizontal piping with stem at or above center of pipe.

D. Install valves in position to allow full stem movement.

E. Install swing check valves for proper direction of flow in horizontal position with hinge pin level.

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3.2 ADJUSTING

A. Adjust or replace valve packing after piping systems have been tested and put into service but before final adjusting and balancing. Replace valves if persistent leaking occurs.

3.3 GENERAL REQUIREMENTS FOR VALVE APPLICATIONS

A. If valve applications are not indicated, use the following:

1. Pump-Discharge Check Valves:

a. NPS 2 and Smaller: Bronze swing check valves with bronze or nonmetallic disc.

b. NPS 2-1/2 and Larger for Domestic Water: Iron swing check valves with lever and weight or spring; metal-seat or resilient-seat check valves.

c. NPS 2-1/2 and Larger for Sanitary Waste and Storm Drainage: Iron swing check valves with lever and weight or spring.

B. If valves with specified CWP ratings are unavailable, the same types of valves with higher CWP ratings may be substituted.

C. End Connections:

1. For Copper Tubing, NPS 2 and Smaller: Threaded or soldered.

2. For Copper Tubing, NPS 2-1/2 to NPS 4: Flanged or threaded.

3. For Copper Tubing, NPS 5 and Larger: Flanged.

4. For Steel Piping, NPS 2 and Smaller: Threaded.

5. For Steel Piping, NPS 2-1/2 to NPS 4: Flanged or threaded.

6. For Steel Piping, NPS 5 and Larger: Flanged.

3.4 DOMESTIC HOT- AND COLD-WATER VALVE SCHEDULE

A. Pipe NPS 2 and Smaller: Bronze swing check valves bronze nonmetallic disc, Class 125, with soldered or threaded end connections.

B. Pipe NPS 2-1/2 and Larger:

1. Iron swing check valves with metal nonmetallic-to-metal seats, Class 125, with threaded or flanged end connections.

2. Iron swing check valves with closure control, lever and spring, Class 125, with threaded or flanged end connections.

END OF SECTION 220523.14

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SECTION 220529 - HANGERS AND SUPPORTS FOR PLUMBING PIPING AND EQUIPMENT

1.1 SUMMARY

A. Section Includes:

1. Metal pipe hangers and supports.

2. Trapeze pipe hangers.

3. Thermal hanger-shield inserts.

4. Fastener systems.

5. Pipe-positioning systems.

6. Equipment supports.

1.2 ACTION SUBMITTALS

A. Product Data: For each type of product.

B. Shop Drawings: Show fabrication and installation details and include calculations.

1.3 INFORMATIONAL SUBMITTALS

A. Welding certificates.

1.4 QUALITY ASSURANCE

A. Structural-Steel Welding Qualifications: Qualify procedures and personnel according to

AWS D1.1/D1.1M.

B. Pipe Welding Qualifications: Qualify procedures and operators according to "2015 ASME Boiler and Pressure Vessel Code, Section IX."

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PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Structural Performance: Hangers and supports for plumbing piping and equipment shall withstand the effects of gravity loads and stresses within limits and under conditions indicated according to ASCE/SEI 7.

1. Design supports for multiple pipes, including pipe stands, capable of supporting combined weight of supported systems, system contents, and test water.

2. Design equipment supports capable of supporting combined operating weight of supported equipment and connected systems and components.

3. Design seismic-restraint hangers and supports for piping and equipment and obtain approval from authorities having jurisdiction.

2.2 METAL PIPE HANGERS AND SUPPORTS

A. Carbon-Steel Pipe Hangers and Supports:

1. Description: MSS SP-58, Types 1 through 58, factory-fabricated components.

2. Galvanized Metallic Coatings: Pregalvanized, hot-dip galvanized, or electro-galvanized.

3. Nonmetallic Coatings: Plastic coated or epoxy powder coated.

4. Padded Hangers: Hanger with fiberglass or other pipe insulation pad or cushion to support bearing surface of piping.

5. Hanger Rods: Continuous-thread rod, nuts, and washer made of carbon steel.

B. Stainless-Steel Pipe Hangers and Supports:

1. Description: MSS SP-58, Types 1 through 58, factory-fabricated components.

2. Padded Hangers: Hanger with fiberglass or other pipe insulation pad or cushion to support bearing surface of piping.

3. Hanger Rods: Continuous-thread rod, nuts, and washer made of stainless steel.

C. Copper Pipe and Tube Hangers:

1. Description: MSS SP-58, Types 1 through 58, copper-coated-steel, factory-fabricated components.

2. Hanger Rods: Continuous-thread rod, nuts, and washer made of copper-coated steel .

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2.3 TRAPEZE PIPE HANGERS

A. Description: MSS SP-58, Type 59, shop- or field-fabricated pipe-support assembly, made from structural-carbon-steel shapes, with MSS SP-58 carbon-steel hanger rods, nuts, saddles, and U-bolts.

2.4 THERMAL HANGER-SHIELD INSERTS

A. Insulation-Insert Material for Cold Piping: ASTM C 552, Type II cellular glass with 100-psig or ASTM C 591, Type VI, Grade 1 polyisocyanurate with 125-psig minimum compressive strength and vapor barrier.

B. Insulation-Insert Material for Hot Piping: Water-repellent-treated, ASTM C 533, Type I calcium silicate with 100-psig ASTM C 552, Type II cellular glass with 100-psig or ASTM C 591, Type VI, Grade 1 polyisocyanurate with 125-psig minimum compressive strength.

C. For Trapeze or Clamped Systems: Insert and shield shall cover entire circumference of pipe.

D. For Clevis or Band Hangers: Insert and shield shall cover lower 180 degrees of pipe.

E. Insert Length: Extend 2 inches beyond sheet metal shield for piping operating below ambient air temperature.

2.5 FASTENER SYSTEMS

A. Powder-Actuated Fasteners: Threaded-steel stud, for use in hardened portland cement concrete, with pull-out, tension, and shear capacities appropriate for supported loads and building materials where used.

B. Mechanical-Expansion Anchors: Insert-wedge-type anchors, for use in hardened portland cement concrete, with pull-out, tension, and shear capacities appropriate for supported loads and building materials where used.

1. Indoor Applications: Zinc-coated or stainless steel.

2. Outdoor Applications: Stainless steel.

2.6 PIPE-POSITIONING SYSTEMS

A. Description: IAPMO PS 42 positioning system composed of metal brackets, clips, and straps for positioning piping in pipe spaces; for plumbing fixtures in commercial applications.

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2.7 EQUIPMENT SUPPORTS

A. Description: Welded, shop- or field-fabricated equipment support made from structural-carbon-steel shapes.

2.8 MATERIALS

A. Aluminum: ASTM B 221.

B. Carbon Steel: ASTM A 1011/A 1011M.

C. Structural Steel: ASTM A 36/A 36M carbon-steel plates, shapes, and bars; black and galvanized.

D. Stainless Steel: ASTM A 240/A 240M.

E. Grout: ASTM C 1107/C 1107M, factory-mixed and -packaged, dry, hydraulic-cement, nonshrink and nonmetallic grout; suitable for interior and exterior applications.

1. Properties: Nonstaining, noncorrosive, and nongaseous.

2. Design Mix: 5000-psi, 28-day compressive strength.

PART 3 - EXECUTION

3.1 APPLICATION

A. Comply with requirements in Section 078413 "Penetration Firestopping" for firestopping materials and installation, for penetrations through fire-rated walls, ceilings, and assemblies.

B. Strength of Support Assemblies: Where not indicated, select sizes of components, so strength will be adequate to carry present and future static loads within specified loading limits.

Minimum static design load used for strength determination shall be weight of supported components plus 200 lb.

3.2 HANGER AND SUPPORT INSTALLATION

A. Metal Pipe-Hanger Installation: Comply with MSS SP-58. Install hangers, supports, clamps, and attachments as required to properly support piping from building structure.

B. Metal Trapeze Pipe-Hanger Installation: Comply with MSS SP-58. Arrange for grouping of parallel runs of horizontal piping, and support together on field-fabricated trapeze pipe hangers.

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1. Pipes of Various Sizes: Support together and space trapezes for smallest pipe size, or install intermediate supports for smaller-diameter pipes as specified for individual pipe hangers.

2. Field fabricate from ASTM A 36/A 36M carbon-steel shapes selected for loads being supported. Weld steel according to AWS D1.1/D1.1M.

C. Thermal Hanger-Shield Installation: Install in pipe hanger or shield for insulated piping.

D. Fastener System Installation:

1. Install powder-actuated fasteners for use in lightweight concrete or concrete slabs less than 4 inches thick in concrete, after concrete is placed and completely cured. Use operators that are licensed by powder-actuated tool manufacturer. Install fasteners according to powder-actuated tool manufacturer's operating manual.

2. Install mechanical-expansion anchors in concrete, after concrete is placed and completely cured. Install fasteners according to manufacturer's written instructions.

E. Pipe-Positioning-System Installation: Install support devices to make rigid supply and waste piping connections to each plumbing fixture.

F. Install hangers and supports complete with necessary attachments, inserts, bolts, rods, nuts, washers, and other accessories.

G. Equipment Support Installation: Fabricate from welded-structural-steel shapes.

H. Install hangers and supports to allow controlled thermal and seismic movement of piping systems, to permit freedom of movement between pipe anchors, and to facilitate action of expansion joints, expansion loops, expansion bends, and similar units.

I. Install lateral bracing with pipe hangers and supports to prevent swaying.

J. Install building attachments within concrete slabs or attach to structural steel. Install additional attachments at concentrated loads, including valves, flanges, and strainers, NPS 2-1/2 and larger and at changes in direction of piping. Install concrete inserts before concrete is placed; fasten inserts to forms, and install reinforcing bars through openings at top of inserts.

K. Load Distribution: Install hangers and supports, so that piping live and dead loads and stresses from movement will not be transmitted to connected equipment.

L. Pipe Slopes: Install hangers and supports to provide indicated pipe slopes and to…