Mechanical Index Page 1 MECHANICAL INDEX 15082 DUCTWORK ... file15890 sheetmetal ductwork and air...

Mechanical Index

MECHANICAL INDEX

15010 MECHANICAL TRADE REQUIREMENTS15082 DUCTWORK INSULATION15450 AUTOMATIC SPRINKLER SYSTEM15832 HOT WATER RADIATION COVERS, BACKPLATE & HANGERS15890 SHEETMETAL DUCTWORK AND AIR DISTRIBUTION DEVICES15895 VARIABLE AIR VOLUME TERMINAL15900 BUILDING AUTOMATION SYSTEM15990 TESTING, BALANCING AND ADJUSTMENTS

Renovation in J-WingThe Richard Stockton College of New Jersey

KSS Project #21516

Mechanical IndexPage 1

MECHANICAL INDEX

15010 MECHANICAL TRADE REQUIREMENTS15082 DUCTWORK INSULATION15450 AUTOMATIC SPRINKLER SYSTEM15832 HOT WATER RADIATION COVERS, BACKPLATE & HANGERS15890 SHEETMETAL DUCTWORK AND AIR DISTRIBUTION DEVICES15900 BUILDING AUTOMATION SYSTEM15990 TESTING, BALANCING AND ADJUSTMENTS

Renovation in H-Wing Phase 2The Richard Stockton College of New Jersey

KSS Project #21516

Mechanical Trade RequirementsSection 15010 -Page 1

SECTION 15010

MECHANICAL TRADE REQUIREMENTS

PART 1 - GENERAL

1.01 RELATED DOCUMENTS

A. The bidding requirements of DIVISION 0 and the General Requirements of the Contractas described in DIVISION 1 and the General and Supplementary conditions of theSpecifications, apply to the work specified in this Section.

1.02 SCOPE OF WORK

A. All labor, materials, tools, and services for a complete installation of equipment andsystem contained in the contract documents.

B. Principal features of the HVAC work included are:

1 Direct digital temperature control system.

2. Variable volume terminal boxes.

3. Series fan-powered terminal boxes.

4. Exhaust air fans.

5. New enclosure on existing finned element.

6. Sheetmetal ductwork for supply air, return air, exhaust air and relief air, includingaccess doors.

7. Grilles, registers and diffusers.

8. Insulation - piping, ductwork and equipment, including acoustical.

9. Identification.

10. Hangers and supports.

11. Sleeves, anchor bolts and templates.

12. Access doors.

13. Painting - as required under Section 15010.

14. Demolition - disconnections, removals and alterations as indicated on theDrawings of all trades.


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Mechanical Trade RequirementsSection 15010 Page 2

15. Cutting and patching of existing construction.

16. Cleaning, testing, balancing and adjusting.

C. Principal features of the Fire Protection Work include:

1. Automatic sprinkler system extension from existing main piping to serve the newrenovated space.


3. Identification.

4. Piping systems' sterilization.

5. Cleaning, testing and adjustments of equipment and systems.

1.03 CONTRACT DRAWINGS

A. The drawings are diagrammatic and indicate the general arrangement of the varioussystems and the approximate and relative locations of the materials and equipmentincluded by these specifications.

B. Each Contractor shall coordinate with and have the approval of the Engineer for theexact location of materials and equipment.

C. Each Contractor shall check the drawings and work required of all other trades to verifyspace conditions and headroom requirements.

D. Where space conditions or headroom requirements appear inadequate, the Engineer shallbe notified before submitting a bid. No consideration or allowance will be granted forfailure to notify the Engineer, or for any alleged misunderstanding of the aforementionedrequirement.

E. Installation, connection, and interconnection of all components of these systems shall becomplete and made in accordance with the requirements of the contract, themanufacturer's instructions and best practices of the trade.

1.04 EXAMINATION OF DRAWINGS AND SPECIFICATIONS

A. Each Contractor, before submitting his proposal, shall examine all applicable drawingsand specifications relating to his work, and the work of all other trades, and shall becomefully informed as to the extent and character of the work required, and its relation to thework of other trades.

B. No consideration shall be granted for an alleged misunderstanding of the materials to befurnished or work to be done.


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1.05 VISIT TO SITE

A. Before commencing work, each Contractor shall visit the site, to verify all measurementsand field conditions affecting his work.

B. Each Contractor shall be responsible for the correctness of all measurements,arrangement of and for any disconnections and reconnections to existing work.

C. Submission of the proposal shall be considered evidence that the Contractor has visitedand examined the site.

D. No extra payment shall be allowed to the Contractor for extra work caused by his failureto visit the site and to verify all conditions and measurements.

1.06 VERIFICATION OF MEASUREMENTS

A. Each Contractor shall be solely responsible for the verification of field measurements,including rigging requirements for equipment, before ordering any materials orequipment, and before commencing any work.

B. Each Contractor under his section of the specifications shall be responsible forcoordinating the locations and sizes of concrete pads, coring, sleeves, inserts, openings,cutting and patching.

C. No extra claims, charges, or compensation will be allowed due to any differencesbetween the actual dimensions and any dimensions indicated on the drawings.

D. Any discrepancies which may be found shall be reported at once to the Engineer forconsideration and the Contractor shall wait for a decision before proceeding with anywork in the affected area.

E. The Engineer's decision in such matters shall be final and binding upon the Contractor,and he shall make his installation accordingly.

1.07 REGULATIONS, CODES AND STANDARDS

A. The Contractor shall perform his work in accordance with the respective applicablerequirements of the codes and standards listed below.

1. American Society of Heating, Refrigerating and Air Conditioning Engineers

2. Underwriters' Laboratories (UL)

3. National Fire Protection Association (NFPA)

4. The latest National Electrical Code (NEC)

5. Utility Companies


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6. OSHA

7. National Electrical Manufacturers' Association (NEMA)

8. Insulated Power Cable Engineers' Association (IPCEA)

9. State of New Jersey - DCA

10. All other Authorities having jurisdiction for this work.

B. Wherever requirements of such laws, codes, and/or regulations differ from the drawingsor specifications, they shall take precedence over the drawings or specifications, and areexpressly made part of the Contract, except where the drawings or specifications aremore stringent or require better materials, which would also be acceptable to theAuthorities, i.e., the more stringent code shall always apply.

1.08 PERMITS, CERTIFICATES AND FEES

A. Each Contractor shall apply for permits and certificates required. The College will paypermit fees.

B. Each Contractor shall prepare all of the information and data for submittal to anyAuthority as required for obtaining certificates of compliance for the permits.

C. Each Contractor shall apply for a work permit (no charge) from the College prior tostarting any work.

1.09 CODE CONSTRUCTION

A. Pressure vessels and safety devices shall be inspected, stamped, certified, constructed inaccordance with ASME test codes, and subject to inspection and tests by authoritieshaving jurisdiction.

B. Materials and equipment shall bear labels, stamps and seals of the UL, ASME, AMCA,NEMA, IEEE, SMACNA, NFPA, ARI, OSHA and other industry regulating groups ashereinafter specified or required by codes.

1.10 SUBMITTALS

A. Each contractor shall submit for approval shop drawings for the specific items ofequipment and material listed in individual sections of these specifications.

B. Refer to General Conditions - Submittals for the required quantities and the procedure touse in preparing and submitting the submittals.


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C. All mechanical equipment items requiring service utility connections shall have theirrespective shop drawings accompanied by manufacturer's certified roughing-in drawingsindicating accurate locations and sizes of all service utility connections.

1.11 ELECTRICAL WIRING AND EQUIPMENT

A. All power connections and wiring for equipment furnished under DIVISION 15 -MECHANICAL, shall be the responsibility of the Electrical Contractor under DIVISION16 - ELECTRICAL, except that control wiring for the Building Automation System,which shall be the responsibility of the HVAC Contractor. Line disconnecting orprotective devices shall be furnished and installed by the Electrical Contractor. Motorstarters and contactors required to operate the equipment provided shall be furnished andinstalled by the Electrical Contractor under DIVISION 16. Motor starters specified to beintegral with mechanical equipment shall be furnished by the respective Contractorfurnishing such equipment.

B. Where controllers, starters, etc., are furnished as an integral part of any equipment, theContractor supplying the equipment shall also furnish complete control wiring diagramsas required.

C. The HVAC Contractor shall set all motors and furnish, set and pipe, as necessary, theflow and pressure switches and automatic temperature controls.

D. The HVAC Contractor shall furnish the Electrical Contractor with complete wiringdiagrams as required.

E. All motors shall be of size, class and type suited for the purpose intended and conformwith the latest standards of the IEEE and NEMA. Motors shall be E-Pact rated. Electricmotors shall be designed for continuous duty, 40'C. ambient, with sliding bases unlessdirectly connected. All belted fan motors shall have adjustable pitch sheaves forapproved V-belts and protected with guards.

F. Part winding motors and 2-speed motors shall be provided where indicated on theMechanical Equipment Schedules. Coordinate with the Electrical Contractor to insureproper motor starter selection.

G. Motors utilized on equipment operated by variable frequency drives shall be invertorduty type motors and premium efficiency rated.

H. Current characteristics shall be 120 volts, single phase, 60 cycle, alternating current forall fractional horsepower motors under 1/2 HP, unless otherwise noted.

I. All motors 1/2 HP and over shall be suitable for the voltage indicated, three phase, 60cycle, alternating current, unless otherwise noted or required.

J. The HVAC Contractor under his section of the specifications shall be completelyresponsible for the ATC wiring incidental to the temperature control system. The fullextent of this work depends on the particular equipment being furnished. All control andelectrical power interlocks shall be installed in accordance with the respective


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manufacturer's recommendations and coordinated by the HVAC and ElectricalContractors.

K. All starters furnished shall conform to the requirements as specified under DIVISION 16- ELECTRICAL REQUIREMENTS.

L. All electrical equipment and prewiring of control devices and equipment shall conformto the requirements of the National Electrical Code, NEMA and the Authorities havingjurisdiction.

1.12 TEMPORARY SERVICES

A. Refer to Division 1 for installation and operation of temporary water, sanitary, heatingand electric facilities.

1.13 COORDINATION WITH EXISTING UTILITIES

A. Each Contractor must coordinate with the Owner and the authorized representative of theexisting site utilities. Call the State of New Jersey for confirmation of undergroundutilities.

B. Caution shall be exercised in avoiding interference with or damage to all existingunderground utilities not in this contract during the installation of new work.

PART 2 - PRODUCTS

2.01 ANCHOR BOLTS

A. The Contractor shall be responsible for the location and sizes of the anchor bolts beforethe concrete is poured, and for anchoring to existing concrete, with locations and sizesfor the new equipment.

2.02 THRU-PENETRATIONS FIRE STOPPING

A. Fire stopping of thru-penetrations such as floors and partitions shall be performed inaccordance with the guidelines set forth in the current UL Fire Resistance Directory.

B. Indicate the UL system number to be utilized for each thru-penetration indicated on thecoordinated equipment shop drawings.

C. Each Contractor shall be responsible for fire stopping his own work.


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2.03 CONCRETE PADS

A. Concrete pads for all equipment furnished under this Division shall be installed by eachContractor under his section of the specifications. Concrete pads shall be complete withanchor bolts located from templates furnished by the manufacturer. Concrete work shallconform to the requirements of DIVISION 3.

2.04 FLASHING AND COUNTERFLASHING

A. Base flashing shall be by the General Contractor. Counterflashing shall be as specifiedunder Flashing, and furnished and installed by each Contractor under his section of thespecifications, unless otherwise shown or specified. Flashing work shall conform to therequirements of DIVISION 7.

2.05 IDENTIFICATION

A. All piping equipment systems and major equipment shall be identified by each Sub-Contractor under his section of work with the name of the service and with an arrowindicating the direction of flow. Pipe identification shall be accomplished by bandingwith polyvinyl-chloride bands, as manufactured by Zeston, Inc., installed at frequentintervals, his section of work with the name of the service and with an arrow indicatingthe direction of flow. Pipe identification shall be accomplished by banding withpolyvinyl-chloride bands, as manufactured by Zeston, Inc., installed at frequent intervals,all changes in direction, at valves, or where pipes pass through walls or floors.

B. All exposed ductwork, except in finished spaces, and the equipment in all mechanicalequipment rooms shall be identified with the same methods as hereinbefore described forthe piping systems.

C. Sizes of letters and bands shall be in accordance with the Mechanical ContractorsAssociation of American Engineering Standards, Part V, latest edition. Colors for thevarious systems shall be as selected by the Design Professional.

D. All valves shall be identified with valve tags. Valve tags shall be not less than 2" indiameter, 18 gauge aluminum or brass with embossed numbers, filled with black paint,and secured with a brass or aluminum chain or S-hook.

E. Each Sub-Contractor under this Division shall prepare a complete set of inked ortypewritten control and valve diagrams, charts and lists identifying and locating all suchrespective items and shall attach corresponding numbered tags to each item. Each Sub-Contractor shall place the charts, diagrams and lists under framed glass in appropriatedesignated equipment rooms as directed.

F. Existing valves to remain shall be retagged and identified to integrate with the newnumbering system.


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2.06 VIBRATION ISOLATORS

A. Mechanical equipment operated by motors over one-half (1/2) horsepower, unlessotherwise noted, and associated piping and ductwork shall be isolated from the structureby means of resilient vibration and noise isolators supplied by a single manufacturer tothe HVAC Contractor. The isolator manufacturer shall include the complete design forthe supplementary bases; a tabulation of the design data on the isolators includingoutside diameter; free operating heights of the neoprene of fiberglass isolators; andisolation efficiency based on the lowest operating speed on the equipment supported.

B. All rotating equipment shall be balanced both statically and dynamically. The equipmentsupporting structure shall not have any natural frequencies within plus or minus (+/-)20% of the operating speeds. The equipment, while operating, shall not exceed a self-excited vibration velocity of 0.10 inches per second when measured with a vibrationmeter on the bearing caps of the machine in the vertical, horizontal and axial directions,or at the equipment mounting feet if the bearings are concealed.

C. Vibration testing shall be in accordance with procedures as established by "Testing forVibrations", Chapter 40, Page 40.22 of the 1980 ASHRAE Systems Handbook.

D. When it is determined by the Engineer that any equipment vibration exceeds thespecified level, the Contractor shall, at no cost to the Owner, determine the source of thevibration and make the necessary corrections or replacement to reduce it to theacceptable level.

2.07 SLEEVES

A. All pipes passing through masonry construction shall be fitted with sleeves. Each sleeveshall extend through its respective floor, wall or partition, and shall be cut flush witheach surface unless otherwise specified. Except where otherwise specified or shown,sleeves shall be two pipe sizes larger than the pipe when uncovered and of sufficient sizeto allow for the covering without binding.

B. Sleeves in bearing and masonry walls, floors and partition shall be of standard weightsteel pipe finished with smooth edges. For other than masonry partitions and forconcealed vertical piping, sleeves shall be No. 24 USG galvanized steel.

C. All sleeves shall be properly installed and securely connected in place.

D. Floor sleeves shall extend one inch (1") above the finished floor in pipe spaces,waterproofed floors, toilet and shower rooms.

E. Where pipes pass through waterproofed floor or walls, design of sleeves shall be suchthat waterproofing can be flashed into and around the sleeves.

F. Where piping and ducts pass through roofs, sleeves and framed openings, they shall beflashed and made watertight by the General Contractor, unless otherwise specified orshown on the drawings.


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G. Sleeves through exterior walls below grade shall have the space between the pipes andsleeves filled with watertight rubber link seal. Sleeve openings in fire-rated penetrationsshall be sealed with fireproof sealant.

2.08 ESCUTCHEON PLATES

A. Escutcheon plates shall be installed by each Contractor in finished areas where his pipingis exposed. All plates shall be solid pattern.

B. Where pipes pass through Toilet Rooms, chromium plated escutcheon plates shall beused, securely locked and completely enclosing the ends of the sleeves.

C. In other areas, escutcheon plates shall be heavy malleable iron type, enamel painted.

2.09 HANGERS AND SUPPORTS

A. All materials and equipment shall be adequately supported by approved methodsacceptable to the Architect. All support components shall conform to Manufacturer'sStandardization Society Specifications SP-58 and SP-69 and Federal SpecificationsWW-H-171 b.

B. Submit details of structural supports for materials and equipment to the Architect forapproval before starting fabrication.

C. Hangers shall adequately support the piping systems and shall be located near or atchanges in piping direction and concentrated loads. Hangers are to have verticaladjustments for maintaining proper pitch of piping. Bell and spigot piping shall besupported at each bell.

D. Provisions shall be made for the expansion and contraction of piping. Piping shall beanchored where required and where indicated on the drawings.

E. Other approved methods of supports from the wall, floor or ceiling may be submitted tothe Architect for approval.

F. Chain, wire or perforated metal straps will not be acceptable. Threaded rods shall beused with the proper pipe attachments.

G. Structural attachments shall be as approved by the Architect.

H. Pipe attachments shall be as follows:

1. For steel pipe, use Grinnell Fig. 260 clevis type hanger.

2. For copper pipe, use Grinnell Fig. CT-65 clevis type hanger.

3. Pipe hangers and supports are to be manufactured by Grinnell, or approved equal.

4. Hangers shall be galvanized or enamel paint finish.


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Vertical piping shall be supported on every other floor with pipe riser clamps, GrinnellFig. 261, or approved equal. Vertical piping in mechanical equipment rooms shall besupported by base elbows.

J. Horizontal piping shall be supported as follows:

Type Pipe Size Rod Diameter Max. Spacing

Steel Up to 1-1/4" 3/8" 8 ft.1-1/2" to 2" 3/8" 10 ft.2-1/2" and 3-1/2" 1/2" 12 ft.4" and 5" 5/8" 15 ft.6" 3/4" 17 ft.8" to 12" 7/8" 22 ft.

Copper Up to 1" 3/8" 6 ft.1-1/4" to 1-1/2" 3/8" 8 ft.2" 3/8" 9 ft.2-1/2" 1/2" 9 ft.3" and 4" 1/2" 10 ft.5" and 6" 5/8" 12 ft.

K. Where horizontal thermal movement is more than one-half inch (1/2"), hangers for hotinsulated pipes shall be roller type with saddles to suit the insulation thickness. Hangersshall be installed outside the insulation.

L. Hangers for hot or cold insulated tubing or cold insulated pipe shall be installed outsidethe insulation. A sheetmetal shield shall be placed under the insulation to distribute thehanger load to the insulation.

M. Caution must be taken to eliminate any damage to the vapor barrier on refrigerant typeinsulation.

N. Hangers attached to other trades' hangers, equipment and ductwork will not be accepted.Special conditions may be approved by the Mechanical Engineer.

0. Where physical space requires piping to be suspended below ductwork, duct shall besupported with unistrut trapeze arrangement to provide means of support for pipehangers. HVAC Contractor shall coordinate structural requirements and loading ofunistrut trapeze with various trades.


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2.10 ACCESS DOORS

A. Access doors, not less than 12" x 12", and of the type called for in DIVISION 8, shall befurnished by this Contractor and installed by the General Contractor where required foraccess to concealed valves, control devices and appurtenances. Each Contractor shallfurnish the General Contractor with the location and access requirements for allequipment furnished and installed under this Division.

PART 3 - EXECUTION

3.01 INSTALLATION

A. The equipment and materials under this Division of the specifications shall be installedin accordance with the recommendations of the respective manufacturer.

B. All work under this section shall be performed by competent mechanics under thesupervision of an experienced Supervisor.

C. The Contractor shall cooperate and coordinate his work with all trades under contract forthis project. The locations of equipment, pipes, and other related appurtenances andequipment must be coordinated in order to avoid any interferences or placing services atthe wrong locations. Maintain proper clearances per Code and manufacturers'recommendations.

D. The work under this Division of the specifications must be performed in an approvedfirst class, workmanlike manner, and conform to all Codes and the best practices of thetrade.

E. The Contractor shall at all times protect and preserve all materials, equipment, fixturesand piping from corrosion, dirt, paint, building materials, acid, tools, overload andfreezing. The Contractor shall repair or replace all equipment and materials which aredamaged as the result of inadequate protection. Open ends of piping, equipment andductwork must be capped or plugged during the construction schedule.

F. All materials and equipment shall be properly isolated against the transmission ofvibration or noise to any part of the building.

G. The Contractor shall be responsible for the coordination, delivery and admission ofmaterials and equipment to the site in accordance with the construction progressschedule.

H. All materials and equipment installed by the Contractor shall be new, the best in gradeand quality with standards and ratings as specified herein. No substitution or deviationfrom the materials and equipment specified herein will be allowed except by writtenpermission from the design professional.

I. No piping, valves, joints or fittings shall be erected over any motors, panelboards orother electrical equipment wherever possible. Any piping, valves, joints or fittingserected over any electrical equipment must have drain pans of 18 gauge galvanized sheet


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metal with 2" high sides erected below the piping and piped to the nearest appropriatefloor drain.

3.02 DISCONNECTIONS, REMOVALS AND RELOCATIONS

A. Disconnections and removals of services and for demolition at the site, related utilitiesshall be as indicated, required and/or specified herein, as required by the job conditions.The work shall be performed in a neat and workmanlike manner to the limits indicated orspecified, or to the minimum extent necessary or required for the proper installation ofnew work. Each Contractor shall verify and coordinate these requirements at the siteprior to submitting his bid price. Existing surfaces remaining after removals to whichnew work is to be applied shall be left in a condition suitable for the application of thenew work.

B. Existing HVAC, plumbing and electrical lines and/or other similar obstructions toremain in service, which are in the way of demolition and/or installation of newconstruction as indicated on the drawings or as required, shall be relocated and/orprotected, as coordinated with and approved by the Architect/Engineer.

C. Debris shall be placed in approved containers to prevent the spread and accumulation ofdust and dirt. Debris shall be removed from the area of work as often as necessary, asdetermined by the Contractor.

D. Protection: The HVAC and Plumbing Contractors, as well as the Electrical Contractorunder DIVISION 16, shall take all necessary precautions to adequately protect personneland public and private property, and existing equipment and materials in the areas ofwork. Approved barriers and warning signs shall be provided to reroute personnelaround areas of dangerous work.

E. Equipment and appurtenances which are not required in the final installation shall beremoved as part of this project. Where equipment and appurtenances are required to beremoved, the branch piping or duct shall be removed to a concealed space and cappedwithout affecting existing and/or new work.

F. All old equipment and appurtenances which are required to be removed, shall becomethe property of the Contractor. All materials which become the property of theContractor shall be removed from the site by him.

G. The Owner may salvage equipment prior to disposal at his discretion.

H. The existing equipment and appurtenances shall be removed and relocated where theyinterfere with new construction. In most cases, relocations are indicated on thedrawings, but the Contractor shall review Architectural, Mechanical and StructuralDrawings, Specifications and conditions at the site and include all necessary changes.

1. The alterations to be made, and the new work to be included, are intended to make acomplete installation. The Contractor shall verify all existing locations, sizes,connections and other pertinent conditions at the site, before disconnecting anyequipment or installing new equipment. He shall arrange new work and alterations sothat no existing work will be adversely affected.


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3.03 CUTTING AND PATCHING

A. Cutting and patching of new work in place shall be by each Contractor under thisDivision. Openings in concrete or masonry shall be made by core drilling.

B. Cutting and patching of existing construction shall be the responsibility of the individualtrades requiring such cutting. Patching of such cutting shall be performed by thoseskilled in such work, i.e., plaster by Plasterers, masonry by Masons, etc., at the expenseof the Contractor requiring such cutting and patching.

1. Cutting of existing roof shall be by the Roofing Contractor where directed by theDivision 15 Contractor.

C. Cutting of existing work shall be done carefully so as to not disturb the structuralintegrity of the work. Cuts shall be at a minimum to accommodate the new work.

D. Patching shall be done with materials, colors, textures, finishes, etc., to match existingadjacent work.

E. Cutting of new and existing construction shall be accomplished in such a manner as notto cause damage to the building or leave unsightly surfaces which cannot be concealedby plates, escutcheons or other construction.

F. Refer to DIVISION 1 for individual trade requirements of cutting and patching.

3.04 CHASES, RECESSES AND OPENINGS

A. The General Contractor shall be responsible for providing all chases, recesses andopenings in the new construction when each Contractor under this Division complieswith the following:

1. Each Contractor under this Division requiring an opening, chase or recess in thenew construction for his work shall furnish the General Contractor with the exactlocation, size and other necessary information in ample time to have themincorporated into the new structure during construction as approved by theArchitect.

2. If any Contractor under this Division fails to comply with the above informationrequirements, then he shall employ the General Contractor to do the necessarycutting and patching at the Division 15 Contractor's own expense where approvedby the Architect.

a. Any cutting and patching affecting the newly constructed or resurfaced roofshall be performed by the Roofing Contractor at the Sub-Contractor'sexpense.


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3. Where new openings in masonry are required which have not been provided forthrough the approved sleeve drawings, they shall be made by coring only.

4. Contractor shall comply with all restrictions delineated in structural drawings andapplicable specification section for cutting openings in masonry walls, precastconcrete floor/roof systems or other structural systems.

3.05 EXCAVATING AND BACKFILLING

A. Each Contractor under his section of the specifications shall be responsible for theexcavation, backfilling, shoring and care for all ground water for the completeinstallation of his work.

B. Each Contractor shall also provide suitable indemnity for all accidents to humans,animals or equipment caused by his excavation work. He shall provide suitable guardsor barricades, red lanterns, flares and other precautions for an approved and safeinstallation.

C. The pipe trenches shall follow the grades as indicated on the drawings or specifiedhereinafter, and the soil pipes shall be laid with a pocket excavated to accommodate thebell, thus providing an even bearing upon undisturbed earth for its entire length.

D. Pipe shall be laid on undisturbed earth and not in fill. Cinder fill and stones or bricksbeneath the piping are prohibited. If the earth is not firm, the piping must be laid onconcrete piers at each bell.

E. Backfill shall be well tamped in layers of not more than 8 inches (8"). It shall consist ofclean earth, as much as possible, but in no case shall it contain stones large enough toinjure the installation. Compaction of backfill shall conform to the requirements ofDIVISION 2.

F. After backfilling, each Contractor shall remove all excess materials from the premisesand, if the surface was paved or sodded, repave and replace sod with material equal to,and level with, the adjacent surface.

3.06 RECORD DRAWINGS

A. Each Contractor shall prepare record drawings, showing the exact locations andelevations of all underground and concealed work, such as piping, valves andappurtenances.

B. During the progress of project work, each Contractor shall keep, on the set of prints ofdrawings which are kept at the job site, an accurate record of all deviations, changes andcorrections from the layouts shown on the drawings. After completion of work at thesite, each Contractor shall submit to the Architect for review, a set of tracings recordingthe information in accordance with the requirements of Division 0 and 1.


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3.07 OPERATING AND MAINTENANCE INSTRUCTIONS

A. Each Contractor shall instruct the Owner in the preventive maintenance and operation ofthe work he has installed. Each Contractor shall submit four (4) complete bookletscovering the maintenance and operation of each system.

B. The minimum period of instruction for each Contractor shall be as follows:

1. HVAC - twenty-four (24) hours

2. Sprinklers - four (4) hours

3.08 CLEANING

A. The piping systems, ducts, materials, equipment and fixtures shall be thoroughly cleanedprior to testing, insulating and placing the systems in operation. Piping systems shall bechemically cleaned where specified in subsequent sections.

3.09 PAINTING

A. Each Contractor under his section of the specifications shall do the following painting:

1. Touch-up damages to prime and/or finished paint coats on equipment.

2. Protective coating of rust resistant paint on all bare ferrous materials in unfinishedor concealed spaces or where exposed to the weather.

3. Furnish baked enamel painted finish for all equipment and materials in finishedspaces.

4. All surfaces shall be thoroughly cleaned by each Contractor prior to painting.

B. The General Contractor shall be responsible for all field painting. Painting of allequipment and materials furnished by the Mechanical Contractors in the mechanical andelectrical equipment rooms shall be as specified in Section 09912.

3.10 COORDINATION OF WORK

A. Each Contractor shall cooperate and coordinate his work with the other trades. Thelocations of pipes, ducts, conduits, panelboards, lighting fixtures, outlets, pull boxes,splice boxes, air diffusers, grilles, structural steel members, and other equipment must becoordinated with the trades involved to avoid any interferences of placement in a wronglocation. Exact locations of equipment, conduit and sleeves, etc., shall be coordinatedwith all trades.


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3.11 GUARANTEE

A. Each Contractor shall provide parts, labor and service for the work under this section andshall guarantee his work, except for cleaning filters, oiling motors, or generalmaintenance, from defect in workmanship, materials and operation for a period of one (1)year from date of acceptance by the Architect. Complete service and maintenance of allequipment, and oiling motors shall be the responsibility of each Contractor until the dateof final acceptance.

END OF SECTION


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SECTION 15010

MECHANICAL TRADE REQUIREMENTS

PART 1 - GENERAL


A. The bidding requirements of DIVISION 0 and the General Requirements of the Contractas described in DIVISION 1 and the General and Supplementary conditions of theSpecifications, apply to the work specified in this Section.

1.02 SCOPE OF WORK

A. All labor, materials, tools, and services for a complete installation of equipment andsystem contained in the contract documents.

B. Principal features of the HVAC work included are:

1 Alterations to direct digital temperature control system.

2. Revise existing variable volume terminal boxes.

3. Conversion of five existing rooftop units to VAV control.

4. New fin tube radiation and new enclosure on existing finned element.

5. Sheetmetal ductwork for supply air, return air, exhaust air and relief air, includingaccess doors.

6. Grilles, registers and diffusers.

7. Insulation - piping, ductwork and equipment, including acoustical.

8. Identification.

9. Hangers and supports.

10. Sleeves, anchor bolts and templates.

11. Access doors.

12. Painting - as required under Section 15010.

13. Demolition - disconnections, removals and alterations as indicated on theDrawings of all trades.



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15. Cleaning, testing, balancing and adjusting.

C. Principal features of the Fire Protection Work include:

1. Automatic sprinkler system extension from existing main piping to serve the newrenovated space.


3. Identification.

4. Piping systems' sterilization.

5. Cleaning, testing and adjustments of equipment and systems.

1.03 CONTRACT DRAWINGS

A. The drawings are diagrammatic and indicate the general arrangement of the varioussystems and the approximate and relative locations of the materials and equipmentincluded by these specifications.

B. Each Contractor shall coordinate with and have the approval of the Engineer for theexact location of materials and equipment.

C. Each Contractor shall check the drawings and work required of all other trades to verifyspace conditions and headroom requirements.

D. Where space conditions or headroom requirements appear inadequate, the Engineer shallbe notified before submitting a bid. No consideration or allowance will be granted forfailure to notify the Engineer, or for any alleged misunderstanding of the aforementionedrequirement.

E. Installation, connection, and interconnection of all components of these systems shall becomplete and made in accordance with the requirements of the contract, themanufacturer's instructions and best practices of the trade.

1.04 EXAMINATION OF DRAWINGS AND SPECIFICATIONS

A. Each Contractor, before submitting his proposal, shall examine all applicable drawingsand specifications relating to his work, and the work of all other trades, and shall becomefully informed as to the extent and character of the work required, and its relation to thework of other trades.

B. No consideration shall be granted for an alleged misunderstanding of the materials to befurnished or work to be done.


KSS Project #21516