Addendum 1 For Issue_BP2.pdf

MCS Maintenance & Transportation

Facility

BP2B

Mattawan, MI

AVB-25-032

AD 01 00

ADDENDUM #1

This Article is noted as Addendum No. 1, dated September 2, 2025, to the MCS Maintenance & Transportation

Facility, BP2B. Update bid documents as necessary with the enclosed information to ensure that a complete turnkey work scope is included at bid time. Each Bidder/Contractor/Sub-Contractor will be held responsible for reading and adhering to any and all data as found within the following pages.

AD 01 01 Pre-Bid RFIs

1.1. See the following attachments for the below noted Pre-Bid RFIs:

1. Pre-Bid RFIs #: 3, 13, 14, 15, 16, 17, 18, 19, 20, 21, 25, 34, 37, 39, 41, 42, 44, 47, 49, 53, 59, 61, 65, 70, 71,

72. There are other questions listed in the log that will be issued in a future Addendum as well. Answered

RFI's are indicated by a green box. If the answers are specific to Addendum 1, you will see 'Addendum 1' next to the question in green.

AD 01 02 AVB Write-Up/Work Scope Changes

1.1. Revised 22.100 spec sections, Revised 23.100 spec section

AD 01 03 Tower Pinkster Write-up/Document(s) Issued

1.1. Tower Pinkster, Addendum 1 on following page.

End of Addendum #1 Write Up.

See the Following Pages for Attachments.

Nurturing curiosity through design since 1953 • towerpinkster.com

©2025 Tower Pinkster Titus Associates, Inc.

ADDENDUM NO. 1

DATE OF ISSUANCE: August 27, 2025

PROJECT: MCS – Maintenance & Transportation Services

Western St.

Mattawan, MI 49071

OWNER: Mattawan Consolidated School

ARCHITECT’S PROJECT NO.: 23-106.020

ORIGINAL BID ISSUE DATE: August 8, 2025

SCOPE OF WORK

This Addendum includes changes to, or clarifications of, the original Bidding Documents and any previously issued addenda, and shall be included in the Bid. All of these Addendum items form a part of the Contract Documents. The Bidder shall acknowledge receipt of this Addendum in the appropriate space provided on the Bid Form. Failure to do so may result in disqualification of the Bid.

DOCUMENTS INCLUDED IN THIS ADDENDUM

This Addendum includes 6 pages of text and the following documents:

• Bidding Documents: None.

• Contract Conditions: None.

• Specification Sections: REVISED DIVISION 22, REVISED DIVISION 23, REMOVED 22 1123, REMOVED

23 0548, 23 2214, 23 3600, 23 8316

• Drawings: CD 100, C100, C 200, C 300, C 301, C 302, C 400, C 401, AG 001, A 101, A 102, A 301, A

302, A 311, A 401, A 501, A 502 ,I 301, I 401, P 301, M 101, M 201, M 301, M 502, M 601, EG001, ES101, E101, E201, E402, E501, TS 101, T 101, T 402, T 421

CHANGES TO SPECIFICATIONS

ADD-1 Item No. S-1 - PLUMBING AND HVAC SPEC

Refer to reissued plumbing and HVAC specifications.

ADD-1 Item No. S-2 - CONTROLS CONTRACTOR

Refer to INSTRUMENTATION AND CONTROL FOR HVAC (section 23 0900) for an updated list of approved control contractors.

8.27.2025 Addendum No. 1 // Maintenance & Transportation Services // 23-106.020 2

CHANGES TO DRAWINGS

ADD-1 Item No. D-1 - PLAN

Refer to Sheet(s): CD 100

Added note about Village of Mattawan tree removal responsibility for water main installation.

ADD-1 Item No. D-2 - PLAN

Refer to Sheet(s): C 100

- Added concrete pads at the base of all gate entry buttons. Detail to be shown in landscape plans.

- Moved ADA parking space in the west lot to the northernmost space.

ADD-1 Item No. D-3 - PLAN

Refer to Sheet(s): C 100, C 200

- Adjusted layout of base bid concrete pad at generator/transformer.

ADD-1 Item No. D-4 - PLAN

Refer to Sheet(s): C 100, C 300, C 302

- Water main along the north edge of the project was moved north 4’ to keep light poles out of easement.

ADD-1 Item No. D-5 - PLAN

Refer to Sheet(s): C 100, C 300

- A downspout in the concave corner of the building was moved closer to the corner.

ADD-1 Item No. D-6 - PLAN

Refer to Sheet(s): C 300

- Light poles now shown on utility plan for reference only. Connection routing, details, and locations shown on electrical plans.

- Adjustments to electrical routing to generator/transformer.

- Stormwater connection to the downspout in the concave corner is now sleeved through the stoop foundation wall. All downspout connection locations in this area adjusted based on stoop locations.

ADD-1 Item No. D-7 - PLAN

Refer to Sheet(s): C 301

- Added new sheet C 301 delineating Village of Mattawan water main responsibility.

8.27.2025 Addendum No. 1 // Maintenance & Transportation Services // 23-106.020 3

ADD-1 Item No. D-8 - DETAIL

Refer to Sheet(s): C 400

- Changed asphalt details to have 13A wearing course.

- Removed oil separator detail, this is now shown on plumbing plans.

ADD-1 Item No. D-9 - DETAIL

Refer to Sheet(s): C 401

- Redrew spill containment detail to be closer to actual scale to better represent interactions of liner and structures/pipe.

ADD-1 Item No. D-10 - AG 001 (BRFI – 019)

Add wall type 17.

ADD-1 Item No. D-11 - A 101 (BRFI – 020)

Add notation of new wall type.

Add detail of cmu/prefinished metal wall panel connection.

ADD-1 Item No. D-12 - A 102

Add new canopy on south façade.

ADD-1 Item No. D-13 - A 301 (BRFI – 014, 037, 021, 039, 051)

Add louver schedule.

Add dock bumper details.

Etched glazing renamed to IG-2 to match other drawings.

Remove text note referring to aluminum stair. Change to concrete stair.

Renamed glazing key to match specs.

ADD-1 Item No. D-14 - A 302 (BRFI 037, BRFI 051)

Change louver locations.

Add louver schedule.

Remove louver dimensions (redundant information now that louver schedule is populated)

Change gutter location.

Add spot elevation for new canopy.

8.27.2025 Addendum No. 1 // Maintenance & Transportation Services // 23-106.020 4

Etched glazing renamed to IG-2 to match other drawings.

Renamed glazing key to match specs.

ADD-1 Item No. D-15 - A 311 (BRFI – 042)

Renamed reference section.

ADD-1 Item No. D-16 - A 401 (BRFI – 044)

Add wall tag

ADD-1 Item No. D-17 - A 501 (BRFI – 047, 049)

Change frame elevation of door 118 and 130.

Add door panel L louver dimensions.

ADD-1 Item No. D-18 - A 502 (BRFI – 051)

Added glazing types LG-1 and IG-3.

Renamed IG-1 and IG-2.

ADD-1 Item No. D-19 - I 301

Remove Corridor 101 casework locks

ADD-1 Item No. D-20 - I 401 (BRFI 018)

Add Elevation 6/I401

ADD-1 Item No. D-21 - P 301

Added GPM to balance valves on HWR.

Added keyed note 10, ADD-1 Item No. D-22 - M 101

Added NO2 / CO exhaust system to bus bays.

Changed keyed note 1 to indicate 7ӯ drop.

Adjusted EF-1 position.

ADD-1 Item No. D-23 - M 201

Added NO2 / CO sensors to bus bays.

8.27.2025 Addendum No. 1 // Maintenance & Transportation Services // 23-106.020 5

Added thermostat to electrical room.

Relocated air cooled condenser farm.

ADD-1 Item No. D-24 - M 502

Scheduled EF-3 for NO2 / CO exhaust system.

ADD-1 Item No. D-25 - M 601

Added control points and sequence for EF-3, CO & NO2 exhaust system.

ADD-1 Item No. D-26 - Added Amber Fire Alarm Strobes for CO & NO2 exhaust system.

Refer to Sheets EG001 and E101

Added amber ‘A’ horn strobe fire alarm device along with keynote #7.

Updated symbol legend. Also removed unused fire alarm symbols.

ADD-1 Item No. D-27 - Electrical Site Revisions

Refer to Sheet ES101

Relocated electrical conduits to better coordinate with water main

Shifted light poles to avoid storm and water lines.

ADD-1 Item No. D-28 - Relocate Electrical Connections

Refer to Sheet E101

Relocated electrical connections to EF-1

Relocated electrical connections to 2 VFDs

Relocated electrical connections to 5 ACCUs that shifted location on the site.

ADD-1 Item No. D-29 - Add Electrical Connection to EF-3

Refer to Sheets E101, E402, and E501

Added electrical connection to new EF-3. Updated electrical feeder schedule and panelboard schedule.

ADD-1 Item No. D-30 - Revised Lighting at New Canopy

Refer to Sheet E201

Revised lighting at new canopy for mechanical units.

8.27.2025 Addendum No. 1 // Maintenance & Transportation Services // 23-106.020 6

ADD-1 Item No. D-31 - Add Starters to Feeder Schedule

Refer to Sheet E402

Added starters to EF-1, EF-2, and P-4

ADD-1 Item No. D-32 - Conduit to fuel pump

Refer to Sheet TS 101

A 2” conduit has been added from the MDF to the fuel pump for a future data connection.

ADD-1 Item No. D-33 - AV1 systems added

Refer to Sheet T 101, T 421

TV locations in the drawing have had an “AV1” tag added which includes a flat panel display with mount.

ADD-1 Item No. D-34 - Clock one-line diagram added

Refer to Sheet T 101, T 421

A one-line diagram has been added to show clock part numbers and the clock wireless sync transmitter.

ADD-1 Item No. D-35 - Clarification of devices installation

Refer to Sheet T 402

Item descriptions for wireless access points and cameras have been modified to make it clear that these devices are owner furnished and owner installed.

END OF ADDENDUM.

PROJECT NO. 23-106.020 TABLE OF CONTENTS

MATTAWAN CS - BID PACKAGE 2B - MAINTENANCE & TRANSPORTATION SERVICES 20 0110 - 1

MATTAWAN CONSOLIDATED SCHOOL AUGUST 27, 2025

[Copyright] 2025 Tower Pinkster Titus Associates - All Rights Reserved

TABLE OF CONTENTS

DIVISION 22 — PLUMBING

22 0500 - COMMON WORK RESULTS FOR PLUMBING

22 0513 - COMMON MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT

22 0519 - METERS AND GAGES FOR PLUMBING PIPING

22 0523 - GENERAL DUTY VALVES FOR PLUMBING PIPING

22 0529 - HANGERS AND SUPPORTS FOR PLUMBING PIPING AND EQUIPMENT

22 0553 - IDENTIFICATION FOR PLUMBING PIPING AND EQUIPMENT

22 0700 - PLUMBING INSULATION

22 0800 - MINIMUM COMMISSIONING OF PLUMBING

22 1116 - DOMESTIC WATER PIPING

22 1119 - DOMESTIC WATER PIPING SPECIALTIES

22 1123 - DOMESTIC WATER PUMPS

22 1316 - SANITARY WASTE AND VENT PIPING

22 1319 - SANITARY WASTE PIPING SPECIALTIES

22 1413 - FACILITY STORM DRAINAGE PIPING

22 3100 - DOMESTIC WATER SOFTENERS

22 3450 - DOMESTIC WATER HEATERS (Shield & Solar)

22 4000 - PLUMBING FIXTURES

DIVISION 23 — HEATING VENTILATING AND AIR CONDITIONING

23 0500 - COMMON WORK RESULTS FOR HVAC

23 0513 - COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

23 0516 - EXPANSION FITTINGS AND LOOPS FOR HVAC PIPING

23 0519 - METERS AND GAGES FOR HVAC PIPING

23 0523 - GENERAL DUTY VALVES FOR HVAC PIPING

23 0529 - HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

23 0548 - VIBRATION AND SEISMIC CONTROLS FOR HVAC PIPING AND EQUIPMENT

23 0553 - IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

23 0593 - TESTING, ADJUSTING, AND BALANCING FOR HVAC

23 0700 - HVAC INSULATION

23 0800 - MINIMUM COMMISSIONING OF HVAC

23 0900 - INSTRUMENTATION AND CONTROL FOR HVAC

23 1123 - FACILITY NATURAL GAS PIPING

23 2113 - HYDRONIC PIPING

23 2114 - UNDERGROUND HYDRONIC PIPING

23 2123 - HYDRONIC PUMPS

23 2300 - REFRIGERANT PIPING

23 2500 - HVAC WATER TREATMENT

23 3113 - METAL DUCTS

23 3300 - AIR DUCT ACCESSORIES

23 3423 - HVAC POWER VENTILATORS

23 3600 - AIR TERMINAL UNITS

23 3713 - DIFFUSERS, REGISTERS, AND GRILLES

23 5216 - CONDENSING BOILERS (Crest_Aerco Fire Tube)

23 5523 - HIGH-INTENSITY, GAS-FIRED, RADIANT HEATERS

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22 1123 - DOMESTIC WATER PUMPS

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23 0548 - VIBRATION AND SEISMIC CONTROLS FOR HVAC PIPING AND EQUIPMENT

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23 2114 - UNDERGROUND HYDRONIC PIPING

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23 3600 - AIR TERMINAL UNITS

MATTAWAN CS - BID PACKAGE 2B - MAINTENANCE & TRANSPORTATION SERVICES 20 0110 - 2

23 5533 - FUEL-FIRED UNIT HEATERS

23 5700 - HEAT EXCHANGERS FOR HVAC

23 7200 - AIR-TO-AIR ENERGY RECOVERY EQUIPMENT (AnnexAire)

23 7313 - MODULAR INDOOR CENTRAL-STATION AIR-HANDLING UNITS

23 8126 - SPLIT SYSTEM AIR CONDITIONERS

23 8316 - RADIANT HEATING HYDRONIC PIPING

DIVISION 26 — ELECTRICAL

26 0500 - COMMON WORK RESULTS FOR ELECTRICAL

26 0519 - LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

26 0526 - GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

26 0529 - HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

26 0533 - RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

26 0536 - CABLE TRAYS FOR ELECTRICAL SYSTEMS

26 0543 - UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS

26 0544 - SLEEVES AND SLEEVE SEALS FOR ELECTRICAL RACEWAYS AND CABLING

26 0553 - IDENTIFICATION FOR ELECTRICAL SYSTEMS

26 0573 - COORDINATION STUDIES

26 0574 - OVERCURRENT PROTECTIVE DEVICE ARC-FLASH STUDY

26 0800 - COMMISSIONING OF ELECTRICAL SYSTEMS

26 0913 - ELECTRICAL ENERGY METERING

26 0923 - LIGHTING CONTROL DEVICES

26 0943 - LIGHTING CONTROL SYSTEM

26 2200 - LOW VOLTAGE TRANSFORMERS

26 2416 - PANELBOARDS

26 2726 - WIRING DEVICES

26 2813 - FUSES

26 2816 - ENCLOSED SWITCHES AND CIRCUIT BREAKERS

26 2913 - ENCLOSED CONTROLLERS

26 2923 - VARIABLE FREQUENCY MOTOR CONTROLLERS (gs) 26 3213 - ENGINE GENERATORS (gsnatgas)

26 3600 - TRANSFER SWITCHES

26 4313 - SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS

26 5100 - INTERIOR LIGHTING

26 5600 - EXTERIOR LIGHTING

DIVISION 27 — COMMUNICATIONS

27 0500 - COMMON WORK RESULTS FOR COMMUNICATIONS

27 0526 - GROUNDING AND BONDING FOR COMMUNICATIONS SYSTEMS

27 0528 - PATHWAYS FOR COMMUNICATIONS SYSTEMS

27 0536 - CABLE TRAYS FOR COMMUNICATIONS SYSTEMS

27 0536.10 - TELECOMMUNICATION ROOMS CABLE SUPPORT

27 0543 - UNDERGROUND PATHWAYS AND STRUCTURES FOR COMMUNICATION SYSTEMS

27 0553 - IDENTIFICATION FOR COMMUNICATIONS SYSTEMS

27 1100 - COMMUNICATIONS EQUIPMENT ROOM FITTINGS

27 1116 - TELECOMMUNICATION ROOM EQUIPMENT AND RACKS

27 1323 - COMMUNICATIONS OPTICAL FIBER BACKBONE CABLING

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23 8316 - RADIANT HEATING HYDRONIC PIPING

MATTAWAN CS - BID PACKAGE 2B - MAINTENANCE & TRANSPORTATION SERVICES 20 0110 - 3

27 1513 - COMMUNICATIONS COPPER HORIZONTAL CABLING

27 1700 - TESTING, ID AND ADMIN OF BALANCED TWISTED PAIR INFRASTRUCTURE

27 1800 - TESTING, ID AND ADMIN OF FIBER INFRASTRUCTURE

27 2626 - IP ADDRESS REQUEST FORM

DIVISION 28 — ELECTRONIC SAFETY AND SECURITY

28 1300 - ACCESS CONTROL

28 3100 - FIRE DETECTION AND ALARM

DIVISION 31 — EARTHWORK

31 1000 - SITE CLEARING

31 2000 - EARTH MOVING

DIVISION 32 — EXTERIOR IMPROVEMENTS

32 1216 - ASPHALT PAVING

32 1313 - CONCRETE PAVING

32 1373 - CONCRETE PAVING JOINT SEALANTS

32 3113 - CHAIN LINK FENCES AND GATES

32 3300 - SITE FURNISHINGS

32 9113 - SOIL PREPARATION

32 9200 - TURF AND GRASSES

32 9300 - PLANTS

DIVISION 33 — UTILITIES

33 1416 - SITE WATER UTILITY DISTRIBUTION PIPING

33 3113 - SITE SANITARY SEWERAGE GRAVITY PIPING

33 4100 - STORM UTILITY DRAINAGE PIPING

33 4600 - SUBDRAINAGE

33 4713 - POND AND RESERVOIR LINERS

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PROJECT NO. 23-106.020 COMMON WORK RESULTS FOR PLUMBING

MATTAWAN CS - BID PACKAGE 2B - MAINTENANCE & TRANSPORTATION SERVICES 22 0500 - 1

SECTION 22 0500 - COMMON WORK RESULTS FOR PLUMBING

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Piping materials and installation instructions common to most piping systems.

2. Dielectric fittings.

3. Sleeve-seal systems.

4. Sleeves.

5. Stack-sleeve fittings.

6. Escutcheons.

7. Grout.

8. Plumbing demolition.

9. Equipment installation requirements common to equipment sections.

10. Painting and finishing.

11. Concrete bases.

12. Supports and anchorages.

B. Related Sections:

1. Division 01 Section "Alternates" for requirements of alternates that relate to this Division.

1.2 ACTION SUBMITTALS

A. Product Data: For dielectric fittings.

1.3 QUALITY ASSURANCE

A. Provide plumbing systems, equipment, and materials in accordance with applicable codes and regulations, and with authorities having jurisdiction.

B. Steel Support Welding: Qualify processes and operators according to AWS D1.1, "Structural Welding Code--Steel."

C. Electrical Characteristics for Plumbing Equipment: Equipment of higher electrical characteristics may be furnished provided such proposed equipment is approved in writing and connecting electrical services, circuit breakers, and conduit sizes are appropriately modified. If minimum energy ratings or efficiencies are specified, equipment shall comply with requirements.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Deliver pipes and tubes with factory-applied end caps. Maintain end caps through shipping, storage, and handling to prevent pipe end damage and to prevent entrance of dirt, debris, and moisture.

MATTAWAN CS - BID PACKAGE 2B - MAINTENANCE & TRANSPORTATION SERVICES 22 0500 - 2

B. Store plastic pipes protected from direct sunlight. Support to prevent sagging and bending.

C. Deliver products to project properly identified with names, model numbers, types, grades, compliance labels, and similar information needed for distinct identifications; adequately packaged and protected to prevent damage during shipment, storage, handling, and up to substantial completion. Coordinate deliveries of mechanical materials and equipment to minimize construction site congestion.

1.5 COORDINATION

A. Arrange for pipe spaces, chases, slots, and openings in building structure during progress of construction, to allow for plumbing installations.

B. Coordinate installation of required supporting devices and sleeves in structural components.

C. Coordinate requirements for access panels and doors for plumbing items requiring access that are concealed behind finished surfaces. Access panels and doors are specified in Division 08 Section "Access Doors and Frames."

1.6 PROJECT COMMISSIONING

A. Project is attempting to obtain Leed Certification and has an independent commissioning authority (CxA).

Contractors for this project shall meet CxA requirements and shall coordinate with and participate in commissioning activities.

PART 2 - PRODUCTS

2.1 PIPE, TUBE, AND FITTINGS

A. Refer to individual Division 22 piping Sections for pipe, tube, and fitting materials and joining methods.

B. Pipe Threads: ASME B1.20.1 for factory-threaded pipe and pipe fittings.

C. All[ grooved joint] couplings, fittings, valves, and specialties shall be the products of a single manufacturer. Grooving tools shall be of the same manufacturer as the grooved components.

1. All castings used for coupling housings, fittings, valve bodies, etc., shall include listing/approval stamp, label, or other markings made to specified standards.

2.2 JOINING MATERIALS

A. Refer to individual Division 22 piping Sections for special joining materials not listed below.

B. Solder Filler Metals: ASTM B 32, lead-free alloys. Include water-flushable flux according to ASTM B 813.

C. Brazing Filler Metals: AWS A5.8, BCuP Series, copper-phosphorus alloys for general-duty brazing, unless otherwise indicated; and AWS A5.8, BAg1, silver alloy for refrigerant piping, unless otherwise indicated.

MATTAWAN CS - BID PACKAGE 2B - MAINTENANCE & TRANSPORTATION SERVICES 22 0500 - 3

D. Solvent Cements for Joining Plastic Piping:

1. PVC Piping: ASTM D 2564. Include primer according to ASTM F 656.

2.3 DIELECTRIC FITTINGS

A. Description: Combination fitting of copper alloy and ferrous materials with threaded end connections that match piping system materials.

1. Insulating Material: Suitable for system fluid, pressure, and temperature.

B. Dielectric Unions: Factory-fabricated, union assembly, for 250-psig minimum working pressure at 180 deg F with threaded end connections.

C. Dielectric Couplings: Galvanized-steel coupling with inert and noncorrosive, thermoplastic lining; threaded ends; and 300-psig minimum working pressure at 225 deg F.

D. Dielectric Nipples: Electroplated steel nipple with inert and noncorrosive, thermoplastic lining; threaded ends; and 300-psig minimum working pressure at 225 deg F.

2.4 SLEEVE-SEAL SYSTEMS

A. Description: Modular sealing-element unit, designed for field assembly, for filling annular space between piping and sleeve.

1. Sealing Elements: EPDM-rubber interlocking links shaped to fit surface of pipe. Include type and number required for pipe material and size of pipe.

2. Pressure Plates: Plastic.

3. Connecting Bolts and Nuts: Carbon steel, with corrosion-resistant coating, of length required to secure pressure plates to sealing elements.

2.5 SLEEVES

A. Cast-Iron Wall Pipes: Cast or fabricated of cast or ductile iron and equivalent to ductile-iron pressure pipe, with plain ends and integral waterstop unless otherwise indicated.

B. Galvanized-Steel Wall Pipes: ASTM A 53/A 53M, Schedule 40, with plain ends and welded steel collar;

zinc coated.

C. Galvanized-Steel-Pipe Sleeves: ASTM A 53/A 53M, Type E, Grade B, Schedule 40, zinc coated, with plain ends.

D. Galvanized-Steel-Sheet Sleeves: 0.0239-inch minimum thickness; round tube closed with welded longitudinal joint.

MATTAWAN CS - BID PACKAGE 2B - MAINTENANCE & TRANSPORTATION SERVICES 22 0500 - 4

2.6 STACK-SLEEVE FITTINGS

A. Description: Manufactured, cast-iron sleeve with integral clamping flange. Include clamping ring, bolts, and nuts for membrane flashing.

1. Underdeck Clamp: Clamping ring with setscrews.

2.7 ESCUTCHEONS

A. Description: Manufactured wall and ceiling escutcheons with an ID to closely fit around pipe, tube, and insulation of insulated piping and an OD that completely covers opening.

B. One-Piece, Cast-Brass Type: With polished, chrome-plated or rough-brass finish and setscrew fastener.

C. One-Piece, Deep-Pattern Type: Deep-drawn, box-shaped brass with chrome-plated finish and spring-clip fasteners.

D. One-Piece, Stamped-Steel Type: With chrome-plated finish and spring-clip fasteners.

E. Split-Casting Brass Type: With polished, chrome-plated or rough-brass finish and with concealed hinge and setscrew.

F. Split-Plate, Stamped-Steel Type: With chrome-plated finish, concealed or exposed-rivet hinge, and spring-clip fasteners.

2.8 GROUT

A. Standard: ASTM C 1107/C 1107M, Grade B, post-hardening and volume-adjusting, dry, hydraulic-cement grout.

B. Characteristics: Nonshrink; recommended for interior and exterior applications.

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

D. Packaging: Premixed and factory packaged.

2.9 PLUMBING ROOF PENETRATIONS

A. Pipe Curbs for Single or Multiple Pipe Penetrations: Prefabricated heavy-gage galvanized steel or aluminum curb with mitered and welded corners, minimum 1 1/2 inch thick rigid fiberglass insulation adhered to inside walls, built-in cant and mounting flange for roof decks, wood nailer, and acrylic clad ABS plastic cover(s), PVC boot(s), and stainless steel clamps.. Size as required to suit roof opening and piping. Overall minimum height shall be 12 inches above roof insulation. Pate or equivalent.

1. Provide curbs with level tops and bottoms to match roof slope.

B. Pipe Curbs for Single Pipe Penetrations: All roof pipe penetrations up to 10" O.D. shall be flashed and sealed using a Pate or equivalent pipe seal, consisting of a spun aluminum base having a minimum five

MATTAWAN CS - BID PACKAGE 2B - MAINTENANCE & TRANSPORTATION SERVICES 22 0500 - 5

inch roof surface flange, a stepped polyvinyl chloride boot to be secured to the base and the pipe with adjustable stainless steel clamps as furnished.

1. Provide curbs with bottoms to match roof slope.

PART 3 - EXECUTION

3.1 PLUMBING DEMOLITION

A. Refer to Division 01 Section "Execution" and Division 02 Section "Selective Demolition" for general demolition requirements and procedures.

B. Disconnect, demolish, and remove plumbing systems, equipment, and components indicated to be removed.

1. Piping to Be Removed: Remove portion of piping indicated to be removed and cap or plug remaining piping with same or compatible piping material.

2. Piping to Be Abandoned in Place: Drain piping and cap or plug piping with same or compatible piping material.

3. Equipment to Be Removed: Disconnect and cap services and remove equipment.

4. Equipment to Be Removed and Reinstalled: Disconnect and cap services and remove, clean, and store equipment; when appropriate, reinstall, reconnect, and make equipment operational.

5. Equipment to Be Removed and Salvaged: Disconnect and cap services and remove equipment and deliver to Owner.

C. If pipe, insulation, or equipment to remain is damaged in appearance or is unserviceable, remove damaged or unserviceable portions and replace with new products of equal capacity and quality.

D. During domestic water demolition, eliminate all “dead-leg” sections.

3.2 PIPING SYSTEMS - COMMON REQUIREMENTS

A. Install piping according to the following requirements and Division 22 Sections specifying piping systems.

B. Drawing plans, schematics, and diagrams indicate general location and arrangement of piping systems.

Indicated locations and arrangements were used to size pipe and calculate friction loss, expansion, pump sizing, and other design considerations. Install piping as indicated unless deviations to layout are approved on Coordination Drawings.

1. Drawings are diagrammatic with no attempt made to show every ell, tee, transition, fitting, or appurtenance. Provide installations that are complete in every detail, compliant with all applicable codes, and as required to provide a fully functional and operational system even though every item is not specifically indicated.

C. Install piping in concealed locations, unless otherwise indicated and except in equipment rooms and service areas.

D. Install piping at right angles or parallel to building walls. Diagonal runs are prohibited unless specifically indicated otherwise.

MATTAWAN CS - BID PACKAGE 2B - MAINTENANCE & TRANSPORTATION SERVICES 22 0500 - 6

E. Install piping above accessible ceilings to allow sufficient space for ceiling panel removal.

F. Install piping to permit valve servicing.

G. Install piping at indicated slopes.

H. Install piping free of sags and bends.

I. Install fittings for changes in direction and branch connections.

J. Install piping to allow application of insulation.

K. Select system components with pressure rating equal to or greater than system operating pressure.

3.3 ESCUTCHEON INSTALLATION

A. Install escutcheons for penetrations of walls, ceilings, and finished floors according to the following:

1. Escutcheons for New Piping:

a. Piping with Fitting or Sleeve Protruding from Wall: One-piece, deep-pattern type.

b. Chrome-Plated Piping: One-piece, cast-brass or split-casting brass type with polished, chrome-plated finish.

c. Insulated Piping: One-piece, stamped-steel type or split-plate, stamped-steel type with concealed hinge.

d. Bare Piping at Wall and Floor Penetrations in Finished Spaces: One-piece, cast-brass or split-casting brass type with polished, chrome-plated finish.

e. Bare Piping at Ceiling Penetrations in Finished Spaces: One-piece, cast-brass or split-casting brass type with polished, chrome-plated finish.

f. Bare Piping in Unfinished Service Spaces: One-piece, cast-brass or split-casting brass type with polished, chrome-plated or rough-brass finish.

g. Bare Piping in Equipment Rooms: One-piece, cast-brass or split-casting brass type with polished, chrome-plated or rough-brass finish.

2. Escutcheons for Existing Piping:

a. Chrome-Plated Piping: Split-casting brass type with polished, chrome-plated finish.

b. Insulated Piping: Split-plate, stamped-steel type with concealed or exposed-rivet hinge.

c. Bare Piping at Wall and Floor Penetrations in Finished Spaces: Split-casting brass type with polished, chrome-plated finish.

d. Bare Piping at Ceiling Penetrations in Finished Spaces: Split-casting brass type with polished, chrome-plated finish.

e. Bare Piping in Unfinished Service Spaces: Split-casting brass type with polished, chrome-plated or rough-brass finish.

f. Bare Piping in Equipment Rooms: Split-casting brass type with polished, chrome-plated or rough-brass finish.

3.4 SLEEVE INSTALLATION

A. Install sleeves for piping passing through penetrations in floors, partitions, roofs, and walls.

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1. Sleeves are not required for core-drilled holes.

B. For sleeves that will have sleeve-seal system installed, select sleeves of size large enough to provide 1-inch annular clear space between piping and concrete slabs and walls.

C. Install sleeves in concrete floors, concrete roof slabs, and concrete walls as new slabs and walls are constructed.

1. Cut sleeves to length for mounting flush with both surfaces.

a. Exception: Extend sleeves installed in floors of mechanical equipment areas or other wet areas 2 inches above finished floor level.

2. Using grout, seal the space outside of sleeves in slabs and walls without sleeve-seal system.

D. Install sleeves for pipes passing through interior partitions.

1. Cut sleeves to length for mounting flush with both surfaces.

2. Install sleeves that are large enough to provide 1/4-inch annular clear space between sleeve and pipe or pipe insulation.

3. Seal annular space between sleeve and piping or piping insulation; use joint sealants appropriate for size, depth, and location of joint. Comply with requirements for sealants specified in Section 07 9200 "Joint Sealants."

E. Fire-Barrier Penetrations: Maintain indicated fire rating of walls, partitions, ceilings, and floors at pipe penetrations. Seal pipe penetrations with firestop materials. Comply with requirements for firestopping specified in Section 07 8413 "Penetration Firestopping."

3.5 STACK-SLEEVE-FITTING INSTALLATION

A. Install stack-sleeve fittings in new slabs as slabs are constructed.

1. Install fittings that are large enough to provide 1/4-inch annular clear space between sleeve and pipe or pipe insulation.

2. Secure flashing between clamping flanges for pipes penetrating floors with membrane waterproofing. Comply with requirements for flashing specified in Section 07 6200 "Sheet Metal Flashing and Trim."

3. Install section of cast-iron soil pipe to extend sleeve to 2 inches above finished floor level.

4. Extend cast-iron sleeve fittings below floor slab as required to secure clamping ring if ring is specified.

5. Using grout, seal the space around outside of stack-sleeve fittings.

B. Fire-Barrier Penetrations: Maintain indicated fire rating of floors at pipe penetrations. Seal pipe penetrations with firestop materials. Comply with requirements for firestopping specified in Section 07 8413 "Penetration Firestopping."

3.6 SLEEVE-SEAL-SYSTEM INSTALLATION

A. Install sleeve-seal systems in sleeves in exterior concrete walls and slabs-on-grade at service piping entries into building.

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B. Select type, size, and number of sealing elements required for piping material and size and for sleeve ID or hole size. Position piping in center of sleeve. Center piping in penetration, assemble sleeve-seal system components, and install in annular space between piping and sleeve. Tighten bolts against pressure plates that cause sealing elements to expand and make a watertight seal.

3.7 SLEEVE AND SLEEVE-SEAL SCHEDULE

A. Use sleeves and sleeve seals for the following piping-penetration applications:

1. Exterior Concrete Walls Above Grade:

a. Piping Smaller Than NPS 6: Cast-iron wall sleeves, galvanized-steel wall sleeves, or galvanized-steel-pipe sleeves.

b. Piping NPS 6 and Larger: Cast-iron wall sleeves, galvanized-steel wall sleeve, or galvanized-steel-pipe sleeves.

2. Exterior Concrete Walls below Grade:

a. Piping Smaller Than NPS 6: Cast-iron wall sleeves with sleeve-seal system.

1) Select sleeve size to allow for 1-inch annular clear space between piping and sleeve for installing sleeve-seal system.

b. Piping NPS 6 and Larger: Cast-iron wall sleeves with sleeve-seal system.

1) Select sleeve size to allow for 1-inch annular clear space between piping and sleeve for installing sleeve-seal system.

3. Concrete Slabs-on-Grade:

a. Piping Smaller Than NPS 6: Cast-iron wall sleeves with sleeve-seal system.

1) Select sleeve size to allow for 1-inch annular clear space between piping and sleeve for installing sleeve-seal system.

b. Piping NPS 6 and Larger: Cast-iron wall sleeves with sleeve-seal system.

1) Select sleeve size to allow for 1-inch annular clear space between piping and sleeve for installing sleeve-seal system.

4. Concrete Slabs above Grade:

a. Piping Smaller Than NPS 6: Stack-sleeve fittings.

b. Piping NPS 6 and Larger: Stack-sleeve fittings.

5. Interior Partitions:

a. Piping Smaller Than NPS 6: Galvanized-steel-pipe sleeves.

b. Piping NPS 6 and Larger: Galvanized-steel-sheet sleeves.

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3.8 PIPING JOINT CONSTRUCTION

A. Join pipe and fittings according to the following requirements and Division 22 Sections specifying piping systems.

B. Ream ends of pipes and tubes and remove burrs.

C. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings before assembly.

D. Soldered Joints: Apply ASTM B 813, water-flushable flux, unless otherwise indicated, to tube end.

Construct joints according to ASTM B 828 or CDA's "Copper Tube Handbook," using lead-free solder alloy complying with ASTM B 32.

E. Brazed Joints: Construct joints according to AWS's "Brazing Handbook," "Pipe and Tube" Chapter, using copper-phosphorus brazing filler metal complying with AWS A5.8.

F. Threaded Joints: Thread pipe with tapered pipe threads according to ASME B1.20.1. Cut threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restore full ID. Join pipe fittings and valves as follows:

1. Apply appropriate tape or thread compound to external pipe threads unless dry seal threading is specified.

2. Damaged Threads: Do not use pipe or pipe fittings with threads that are corroded or damaged.

Do not use pipe sections that have cracked or open welds.

G. Flanged Joints: Select appropriate gasket material, size, type, and thickness for service application.

Install gasket concentrically positioned. Use suitable lubricants on bolt threads.

H. Plastic Piping Solvent-Cement Joints: Clean and dry joining surfaces. Join pipe and fittings according to the following:

1. Comply with ASTM F 402 for safe-handling practice of cleaners, primers, and solvent cements.

2. PVC Nonpressure Piping: Join according to ASTM D 2855.

I. Plastic Nonpressure Piping Gasketed Joints: Join according to ASTM D 3212.

3.9 PIPING CONNECTIONS

A. Make connections according to the following, unless otherwise indicated:

1. Install unions, in piping NPS 2 and smaller, adjacent to each valve and at final connection to each piece of equipment.

2. Install flanges, in piping NPS 2-1/2 and larger, adjacent to flanged valves and at final connection to each piece of equipment.

3. Wet Piping Systems: Connect piping materials of dissimilar metals as follows:

a. In piping NPS 2(DN 50) and smaller, install ground joint unions.

4. Wet Piping Systems: Install dielectric unions, dielectric coupling, or dielectric nipple fittings to connect piping materials of dissimilar metals.

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3.10 EQUIPMENT INSTALLATION - COMMON REQUIREMENTS

A. Sequence, coordinate, and integrate installations of plumbing equipment.

B. Install equipment to allow maximum possible headroom unless specific mounting heights are not indicated.

C. Install equipment level and plumb, parallel and perpendicular to other building systems and components in exposed interior spaces, unless otherwise indicated.

D. Install plumbing equipment to facilitate service, maintenance, and repair or replacement of components.

Connect equipment for ease of disconnecting, with minimum interference to other installations.

E. Install equipment to allow right of way for piping installed at required slope.

F. Installing contractor shall bear all additional costs, including that of Architect/Engineer redesign and that of other trades, incurred as a result of installation of other than scheduled equipment.

G. Verify final equipment locations for roughing-in.

H. Refer to equipment specifications in other Sections of these Specifications for roughing-in requirements.

3.11 PAINTING

A. Damage and Touchup: Repair marred and damaged factory-painted finishes with materials and procedures to match original factory finish.

3.12 CONCRETE BASES

A. Concrete Bases: Anchor equipment to concrete base according to equipment manufacturer's written instructions and according to seismic codes at Project.

1. Construct concrete bases of dimensions indicated, but not less than 4 inches larger in both directions than supported unit.

2. Install dowel rods to connect concrete base to concrete floor. Unless otherwise indicated, install dowel rods on 18-inch centers around the full perimeter of the base.

3. Install epoxy-coated anchor bolts for supported equipment that extend through concrete base, and anchor into structural concrete floor.

4. Place and secure anchorage devices. Use supported equipment manufacturer's setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

5. Install anchor bolts to elevations required for proper attachment to supported equipment.

6. Install anchor bolts according to anchor-bolt manufacturer's written instructions.

7. Use 3000-psi, 28-day compressive-strength concrete and reinforcement as specified in Division 03 section for cast-in-place concrete."

3.13 ERECTION OF METAL SUPPORTS AND ANCHORAGES

A. Refer to Division 05 Section "Metal Fabrications" for structural steel.

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B. Cut, fit, and place miscellaneous metal supports accurately in location, alignment, and elevation to support and anchor plumbing materials and equipment.

C. Field Welding: Comply with AWS D1.1.

3.14 GROUTING

A. Mix and install grout for plumbing equipment base bearing surfaces, pump and other equipment base plates, and anchors.

1. Clean surfaces that will come into contact with grout.

2. Provide forms as required for placement of grout.

3. Avoid air entrapment during placement of grout.

4. Place grout, completely filling equipment bases.

5. Place grout on concrete bases and provide smooth bearing surface for equipment.

6. Place grout around anchors.

7. Cure placed grout.

3.15 PLUMBING ROOF PENETRATIONS

A. Install plumbing roof penetrations in accordance with roof curb manufacturer’s recommendations and in strict compliance with roofing manufacturer’s requirements.

1. Roofs with Warranty: Roof penetrations and curbs shall be installed in such a manner to maintain roofing warranty.

B. Pipe Curbs for Pipe Penetrations: Secure boot to curb base and secure boot to pipe with adjustable stainless steel clamps.

3.16 INSTALLATION OF ACCESS DOORS

A. Where lay-in ceilings are used, the access to ceiling space is provided through the removable ceiling panels. Where access is required to valves, pipes, or other devices in spaces above non-removable ceilings or in chases, the Contractor requiring the access doors shall provide access doors. Access doors required in rated walls and ceiling shall bear the same rating. Access panels and doors are specified in Division 08 Section "Access Doors and Frames."

1. Set frames accurately in position and securely attached to supports, with face panels plumb and level in relation to adjacent finish surfaces.

2. Adjust hardware and panels after installation for proper operation.

3.17 FIELD QUALITY CONTROL

A. Replace broken and damaged escutcheons and floor plates using new materials.

END OF SECTION 22 0500

PROJECT NO. 23-106.020 COMMON MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT

MATTAWAN CS - BID PACKAGE 2B - MAINTENANCE & TRANSPORTATION SERVICES 22 0513 - 1

SECTION 22 0513 - COMMON MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes general requirements for single-phase and polyphase, general-purpose, horizontal, small and medium, squirrel-cage induction motors for use on ac power systems up to 600 V and installed at equipment manufacturer's factory.

1.3 COORDINATION

A. Coordinate features of motors, installed units, and accessory devices to be compatible with the following:

1. Motor controllers.

2. Torque, speed, and horsepower requirements of the load.

3. Ratings and characteristics of supply circuit and required control sequence.

4. Ambient and environmental conditions of installation location.

B. For motors using variable frequency controller, motors to be designed for such application and suitable for use throughout speed range without overheating.

PART 2 - PRODUCTS

2.1 GENERAL MOTOR REQUIREMENTS

A. Comply with requirements in this Section except when stricter requirements are specified in plumbing equipment schedules or Sections.

B. Comply with NEMA MG 1 unless otherwise indicated.

2.2 MOTOR CHARACTERISTICS

A. Duty: Continuous duty at ambient temperature of 40 deg C and at altitude of 3300 feet above sea level.

B. Capacity and Torque Characteristics: Sufficient to start, accelerate, and operate connected loads at designated speeds, at installed altitude and environment, with indicated operating sequence, and without exceeding nameplate ratings or considering service factor.

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2.3 POLYPHASE MOTORS

A. Description: NEMA MG 1, Design B, medium induction motor.

B. Efficiency: Energy efficient, as defined in NEMA MG 1.

1. Provide premium efficient motors where scheduled or when used with a variable frequency controller.

C. Service Factor: 1.15.

D. Multispeed Motors: Variable torque.

1. For motors with 2:1 speed ratio, consequent pole, single winding.

2. For motors with other than 2:1 speed ratio, separate winding for each speed.

E. Rotor: Random-wound, squirrel cage.

F. Bearings: Regreasable, shielded, antifriction ball bearings suitable for radial and thrust loading.

G. Temperature Rise: Class B.

H. Insulation: Class F.

I. Code Letter Designation:

1. Motors 15 HP and Larger: NEMA starting Code F or Code G.

2. Motors Smaller than 15 HP: Manufacturer's standard starting characteristic.

J. Enclosure Material: Manufacturer’s standard material.

2.4 POLYPHASE MOTORS WITH ADDITIONAL REQUIREMENTS

A. Motors Used with Variable Frequency Controllers: Ratings, characteristics, and features coordinated with controller.

B. Motors Used with Variable Frequency Controllers: [Ratings, characteristics, and features coordinated with and approved by controller manufacturer.]

1. Windings: Copper magnet wire with moisture-resistant insulation varnish, designed and tested to resist transient spikes, high frequencies, and short time rise pulses produced by pulse-width modulated inverters.

2. Premium-Efficient Motors: Class B temperature rise; Class F insulation.

3. Shaft Grounding Ring: Factory installed shaft grounding ring consisting of maintenance free, circumferential, bearing protection ring with conductive micro fiber shaft contacting material.

2.5 SINGLE-PHASE MOTORS

A. Motors larger than 1/20 hp shall be one of the following, to suit starting torque and requirements of specific motor application:

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1. Permanent-split capacitor.

2. Split phase.

3. Capacitor start, inductor run.

4. Capacitor start, capacitor run.

B. Multispeed Motors: Variable-torque, permanent-split-capacitor type.

C. Bearings: Prelubricated, antifriction ball bearings or sleeve bearings suitable for radial and thrust loading.

D. Motors 1/20 HP and Smaller: Shaded-pole type.

E. Thermal Protection: Internal protection to automatically open power supply circuit to motor when winding temperature exceeds a safe value calibrated to temperature rating of motor insulation. Thermal-protection device shall automatically reset when motor temperature returns to normal range.

2.6 ELECTRONIC COMMUTATION MOTOR (ECM)

A. Description: Motor to be an electronic commutation motor (ECM) specifically designed for direct drive applications. Motors shall be permanently lubricated with heavy-duty ball bearings to match the equipment load and prewired to the specific voltage and phase. Internal motor circuitry shall convert AC power supplied to the fan to DC power to operate the motor. Motor shall be speed controllable down to 20% of full speed (80% turndown). Speed shall be controlled by either a potentiometer dial mounted on the motor or by a 0-10 VDC signal. Motor shall be a minimum of 85% efficient at all speeds.

PART 3 - EXECUTION (Not Applicable)

END OF SECTION 22 0513

PROJECT NO. 23-106.020 METERS AND GAGES FOR PLUMBING PIPING

MATTAWAN CS - BID PACKAGE 2B - MAINTENANCE & TRANSPORTATION SERVICES 22 0519 - 1

SECTION 22 0519 - METERS AND GAGES FOR PLUMBING PIPING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Thermometers.

2. Gages.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of product indicated.

1.4 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For meters and gages to include in operation and maintenance manuals.

1.5 QUALITY ASSURANCE

A. NSF Compliance as required by authorities having jurisdiction:

1. Comply with NSF 14, "Plastics Piping Components and Related Materials," for plastic domestic water piping components.

2. Comply with NSF 61, "Drinking Water System Components - Health Effects; Sections 1 through 9."

3. Comply with NSF 372, "Drinking Water System Components – Lead Content”

PART 2 - PRODUCTS

2.1 LIQUID-IN-GLASS THERMOMETERS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Ashcroft Inc.

2. Blue Ribbon Corp.

3. Ernst Flow Industries.

4. Marsh Bellofram.

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5. Miljoco Corporation.

6. Nanmac Corporation.

7. Noshok.

8. Palmer Wahl Instrumentation Group.

9. REOTEMP Instrument Corporation.

10. Tel-Tru Manufacturing Company.

11. Trerice, H. O. Co.

12. WATTS.

13. Weiss Instruments, Inc.

14. Weksler Glass Thermometer Corp.

15. WIKA Instrument Corporation.

16. Winters Instruments - U.S.

B. Case: Metal or plastic, 9 inches long.

C. Tube: Red or blue reading, organic-liquid filled, with magnifying lens.

D. Tube Background: Satin-faced, nonreflective aluminum with permanently etched scale markings.

E. Window: Glass or plastic.

F. Connector: Adjustable type, 180 degrees in vertical plane, 360 degrees in horizontal plane, with locking device.

G. Stem: Copper-plated steel, aluminum, or brass for thermowell installation and of length to suit installation.

H. Accuracy: Plus or minus 1 percent of range or plus or minus 1 scale division to maximum of 1.5 percent of range.

2.2 THERMOWELLS

A. Manufacturers: Same as manufacturer of thermometer being used.

B. Thermowells:

1. Standard: ASME B40.200.

2. Description: Pressure-tight, socket-type fitting made for insertion into piping tee fitting.

3. Type: Stepped shank unless straight or tapered shank is indicated.

4. External Threads: NPS 1/2, NPS 3/4, or NPS 1, ASME B1.20.1 pipe threads.

5. Internal Threads: 1/2, 3/4, and 1 inch, with ASME B1.1 screw threads.

6. Bore: Diameter required to match thermometer bulb or stem.

7. Insertion Length: Length required to match thermometer bulb or stem.

8. Lagging Extension: Include on thermowells for insulated piping and tubing.

9. Bushings: For converting size of thermowell's internal screw thread to size of thermometer connection.

C. Heat-Transfer Medium: Mixture of graphite and glycerin.

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2.3 PRESSURE GAGES

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Ashcroft Inc.

2. Miljoco Corporation.

3. Trerice, H. O. Co.

4. WATTS.

5. Weiss Instruments, Inc.

B. Direct-Mounting, Dial-Type Pressure Gages: Indicating-dial type complying with ASME B40.100.

1. Standard: ASME B40.100.

2. Case: Liquid-filled type, drawn steel or cast aluminum, 4-1/2-inch diameter.

3. Pressure-Element Assembly: Bourdon tube unless otherwise indicated.

4. Pressure Connection: Brass, NPS 1/4, bottom-outlet type unless back-outlet type is indicated.

5. Movement: Mechanical, with link to pressure element and connection to pointer with front recalibration.

6. Dial: Satin-faced, nonreflective aluminum with permanently etched scale markings.

7. Pointer: Red or other dark-color metal.

8. Window: Glass or plastic.

9. Ring: Metal.

10. Accuracy: Grade A, plus or minus 1 percent of middle half scale.

11. Vacuum-Pressure Range: 30-in. Hg of vacuum to 15 psig of pressure.

12. Range for Fluids under Pressure: Two times operating pressure.

2.4 GAGE ATTACHMENTS

A. Snubbers: ASME B40.100, brass; with NPS 1/4, ASME B1.20.1 pipe threads and porous-metal-type surge-dampening device. Include extension for use on insulated piping.

B. Tubing: NPS 1/4(DN 8) copper.

C. Valves: Brass ball, with NPS 1/4, ASME B1.20.1 pipe threads.

PART 3 - EXECUTION

3.1 INSTALLATIONS

A. Install direct-mounted thermometers in thermowells and adjust vertical and tilted positions.

B. Install thermowells of sizes required to match thermometer connectors. Include bushings if required to match sizes.

C. Install thermowells with extension on insulated piping.

D. Install thermowells with socket extending one-third of diameter of pipe and in vertical position in piping tees where thermometers are indicated.

E. Fill thermowells with heat-transfer medium.

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F. Install direct-mounting pressure gages in piping tees with pressure gage located on pipe at most readable position.

1. Provide elbows as required to install gauges at location and angle readable from standing position on floor.

G. Install valve and snubber in piping for each pressure gage for fluids.

H. Install thermometers in the following locations:

1. Inlet and outlet of each water heater.

2. Inlets and outlets of each domestic water heat exchanger.

3.…