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<br />BASIC MECHANICAL REQUIREMENTS
<br />Section 15050 Me
<br />chanical & Methods
<br />PART 1 GENERAL:
<br />1.01 Description of Work: The work to be performed under this Division includes all labor,
<br />materials, equipment and services necessary to design and install the complete mechanical
<br />system as shown on the drawings and herein specified.
<br />1.02 Quality Assurance: All work shall be done in a workman like manners in accordance with
<br />good practice, manufacturers? recommendations, and in compliance with 2004 and 2006 Florida
<br />Mechanical Code including all local codes and regulation.
<br />1.03 Other Specified Work: See electrical and plumbing specification for work to be done in
<br />conjunction with the mechanical work. All control and hardware to complete the HVAC
<br />control systems shall be furnished and installed under Division 15 of Mechanical, of this
<br />contract documents.
<br />1.04 Manufacturers: Manufacturer name and model numbers listed in the specification or on the
<br />schedules are for the purpose of establishing a quality of products or a specific design
<br />configuration. Equal products, as approved by the Architect/Engineer, will be acceptable
<br />from other manufacturers.
<br />1.05 Quality Assurance:
<br />A. Manufacturer: Firms regularly engaged in manufacture of packaged cooling units, of type
<br />sizes and capacities required, whose products have been in satisfactory use in similar
<br />service for not less than five years.
<br />B. Installers: A firm with at least five years of successful installation experience on projects
<br />with packaged and split system cooling units.
<br />C. Codes and standards: The latest version of the following codes and standards apply to all
<br />or part of the products for procedures covered in this specification.
<br />National Fire Protection Association (NFPA)
<br />Air Movement and Control Association (AMCA)
<br />Air Conditioning and Refrigeration Institute (ARI)
<br />Underwriters Laboratories (UL)
<br />American National Standards Institute, Inc. American Society of Heating,
<br />refrigerating and air-conditioning Engineers (ANSI-ASHRAE)
<br />2004 Florida Building Code
<br />National Electric Code (NEC)
<br />Standard Mechanical Code
<br />Standard Fire Prevention Code
<br />Americans with Disabilities Act (ADA)
<br />SMACNA Ductwork Standards
<br />ASRAE Standard 62-89 and latest revisions.
<br />All other local, City, County and State Codes
<br />1.06 Equipment: All equipment, etc., unless otherwise noted, shall be new and of the best
<br />quality free of defects as shown on the drawings and as indicated in these specifications.
<br />1.07 Workmanship: All materials shall be fabricated and installed in a neat and workman like
<br />manners with the coordination of all involved trades to avoid interference and delay due to
<br />lack of coordination. No allowances will be given for reworks due to lack of
<br />coordination or interference between trades.
<br />1.08 Access Doors: Provide access doors for all dampers, valves, etc. where floors, walls, and
<br />ceilings must be penetrated to access mechanical equipment. Provide fire rated access
<br />doors in rated construction.
<br />1.09 Submittal: Submittal data is required for all HVAC equipment, plumbing equipment,
<br />ductwork, hangers, etc. Partial submittal will not be accepted. Submittal shall be
<br />presented in six individual binders with the project name listed on the front cover. Submit
<br />maintenance data and parts list for each cooling unit, control, and accessory, including
<br />troubleshooting and maintenance guides.
<br />1.10 Fire Dampers: Fire dampers shall be type "b" curtain type, suitable for either vertical or
<br />horizontal installation, with 20 gauge steel channel frames, 24 gauge steel blades, and 18
<br />gauge steel enclosure with Duct collars. All parts galvanized mill finish.
<br />Fire dampers shall be equal to Ruskin type DIBD for walls up to two hours.
<br />Install in accordance with NFPA-90a, tested in accordance with UL safety standard 555.
<br />1-1/2 hour and 4-hour protection, 165 fusible links.
<br />1.11 Warranty/guarantee: The contractor shall warranty/guarantee and maintain the stability of
<br />work and materials and keep the some in perfect repair and condition of the period of one
<br />year.
<br />Defects of any kind due to faulty work or materials appearing during the above -mentioned
<br />period must be immediately made good by the contractor at his own expense to the entire
<br />satisfaction of the owner and architect and engineer. Such reconstruction and repairs shall
<br />include all damage to the finish or furnishing of the building resulting from the original
<br />defect or repairs thereto.
<br />PART 2 EXECUTION:
<br />All locations of equipment, ductwork, piping, etc., indicated on the drawings are diagrammatic
<br />and shall be followed as closely as possible to the plans subject to building construction and
<br />interference with other trades. All work shall be installed to insure maximum headroom.
<br />Balanced operation and suitable aesthetic appearance. The contractor is responsible for any field
<br />measurements required providing an approved and functional installation.
<br />Not all components required for a complete installation are shown on these drawings. Refer to
<br />equipment installations, schedules and applicable codes for additional information, including
<br />required connection location, types, and size. Provide isolation valves and unions at equipment
<br />and as indicated on drawings.
<br />The contractor shall be responsible for furnishing and installing adequate and proper insulation
<br />and moisture -seal in a manner that will permanently prevent the accumulation of any objectionable
<br />moisture on the exterior of air-conditioning units, refrigerant -piping, condensate drain piping, air
<br />ducts or other parts of the system. He shall correct the cause of any condensation and fully
<br />repair, without cost to the owner, any damages to building surfaces, furnishings or equipment
<br />caused by condensation from this system, for the full period of the guarantee.
<br />2.01 Cleaning, Testing And Adjusting: Clean and Adjust: Upon completion of work, the
<br />contractor shall clean, oil and grease all fans, motors and other running equipment and
<br />apparatus which he installs and make certain all such apparatus and mechanisms are in
<br />proper working order and ready for tests.
<br />Testing: Upon completion of installation of units and connection to competed air
<br />distribution system, start-up and test equipment in accordance with ARI Standards;
<br />operate units to demonstrate capability and compliance with requirements. Where
<br />possible, field -correct malfunctioning units, then retest to demonstrate compliance.
<br />2.02 Excavation and Backfill Provide all excavation and trenching, to the correct elevations,
<br />for the installation of all piping, manholes, catch basins and foundations included under
<br />this division of the work.
<br />Provide all backfill in strict accordance with the "excavation and backfill" section of
<br />division 1 specifications.
<br />2.03 Training Services: Thoroughly instruct the owner?s representative in the operation of all
<br />equipment furnished and location of all valves and control devices.
<br />Train building owner's personnel during normal working hours on start-up and shut down
<br />procedures, troubleshooting procedures, servicing and preventive maintenance schedules
<br />and procedures. Review with the owner's personnel the data contained in the operating
<br />and maintenance manual. Schedule training with the owner, provide at least 7-days prior
<br />notice to architect/engineer.
<br />Section 15161 Vibration Isolation:
<br />All blower units and vibrating type equipment shall be properly fitted with mason industries
<br />vibration isolation equipment sized in accordance with equipment weight and duty.
<br />Provide flexible connectors at all supply and return connections to air handling equipment
<br />consisting of heavy canvas or neoprene fabric with airtight seams and connections to the
<br />equipment.
<br />Section 15190 Equipment Identification:
<br />Equipment Identification: Provide identification labels on or near each piece of major equipment
<br />and each operational device and disconnects. The labels shall be constructed of engraved plastic
<br />laminate sign or plastic equipment marker permanently secured to equipment. The lettering shall
<br />be a minimum of 2 inch high for equipment name and 3/8 inches for equipment information.
<br />Section 15530 Refrigerant Piping
<br />A. Refrigerant piping shall be Type "L" hard drawn copper, jointed with Sil FOS brazing
<br />alloy backed up with 60-40 tin lead solder.
<br />B. Refrigerant piping insulation shall be "Armstrong Armaflex pipe insulation" or approved
<br />equal, sizes as follow:
<br />3/8" thru 2-5/8" ID =3/4"
<br />Armaflex pipe insulation shall be installed with all seams and joints sealed with Armstrong 520
<br />Adhesive. Since 520 adhesives are a contact adhesive, it must be applied to both surfaces.
<br />Applications must be coated with Armstrong Armaflex Finish or protective coating approved by
<br />the manufacturer.
<br />Section 15855 Air-conditioning and Heating:
<br />A. General: The general mechanical specifications apply to the work specified in this section.
<br />B. Description of Work: Furnish and install complete air conditioning systems as indicated on
<br />the design drawings and as outlined within these specifications. Work shall include but
<br />not be limited to the fabrication and/or installation of the scheduled air conditioning units,
<br />exha
<br />ust fans air distribution and ductwork.
<br />C. Equipment: Air conditioning units - units shall be split system
<br />air-to-air electric air conditioning units as scheduled on the design
<br />drawings. Units with integral electric resistance heaters shall have a single -point electric
<br />connection.
<br />Total cooling capacity of the units shall be as scheduled on drawings. Unit cabinets shall be
<br />constructed of galvanized steel. Bonderized and coated with baked enamel. Cabin insulation
<br />shall comply with Florida Energy Code.
<br />Refrigeration system - the units shall contain hermetic compressors with service valves and
<br />vibration isolation. Units shall have dual compressors and dual refrigeration circuits or capacity
<br />reduction steps where indicated on equipment schedules.
<br />Fans and motors - the indoor air fans shall be of the forward -curved centrifugal class 1 type.The
<br />outdoor air fans shall be of the propeller type, each directly driven by an inherently protected
<br />motor. Motor and drive to provide higher fan output when job requirements exceed standard fan
<br />capacity shall be provided.
<br />Safety controls - cooling system shall be protected by: loss of charge protection, high and low
<br />pressurestat. A compressor motor overloads, and a timing device Which will prohibit the
<br />r n once ever five minutes.
<br />'n subjected to a starting current more than compressor motor from being sub�e e g y
<br />Three phase units shall have phase- loss protection.
<br />Controls - provide wall mounted, heat/cool on -off -auto thermostat and firestat for each unit.
<br />Air filters - Filters shall be fiberglass media throw -away type in a rigid frame with a supportin,g
<br />maze across both enteringand leaving surfaces. Supply one complete set of filters after owners
<br />final acceptance. Farr 30,730 or equal.
<br />D. Warranties: Provide a one (1) year warranty on the complete system and an additional
<br />four (4) year factory warranty on all compre sors. Loss of refrigerant will be replaced at
<br />no cost to the owner for a period of one (1) year.
<br />Condensate drains: type, I PVC Route to roof drain.
<br />Install per manufacturers recommendations.
<br />2.01 ACCEPTABLE MANUFACTURERS: Provide products by one of the following:
<br />1. Aaon
<br />2. Lennox
<br />3. Trane
<br />4. Carrier
<br />Section 15870 Power Ventilators (Exhaust Fans):
<br />PART 1 GENERAL
<br />1.01 Related Documents: Basic Mechanical Requirements govern the work specified in this
<br />section.
<br />1.02 Description of Work: The extent of power ventilator work is shown on drawings and
<br />schedules, and by the requirements of this section and includes the following:
<br />1. Ceiling ventilators.
<br />PART 2 B Products:
<br />2.01 ACCEPTABLE MANUFACTURERS: Provide products by one of the following:
<br />1. Nutone
<br />2. Penn.
<br />3. Greenheck.
<br />4. Carnes.
<br />5. Acme.
<br />6. Broon.
<br />2.02 Ventilator Units:
<br />A. General:
<br />1. Provide standard prefabricated power ventilator units of the type and size shown,
<br />modified as necessary to comply with requirements, and as requlied for a complete
<br />installation.
<br />2. Provide motor and electrical accessories complying with NEMA standards.
<br />3. Bird Screen: Nonmagnetic galvanized steel �? mesh, unless otherwise indicated.
<br />4. Fasteners: Nonmagnetic stainless screws, bo s and rivets of standard type and
<br />sizes.
<br />B. Power Ventilators:
<br />1. Electrical: Provide factory -wired non -fusible type disconnect switch at motor in
<br />fan housing. Provide thermal overload protection in fan motors. Provide conduit
<br />chases within the unit for electrical connection.
<br />2. Dampers: Provide gravity actuated louvered dampers in curb bases or wall sleeves
<br />as required.
<br />3. Provide power ventilators with AMCA certified rating in accordance with ACMA
<br />standards and tested in accordance with UL 705 Power Ventilators:
<br />PART 3 - EXECUTION
<br />3.01 Inspection: The installer must examine conditions under which power ventilators are to be
<br />installed, and notify the Architect in writing of conditions detrimental to proper
<br />completion of the work.
<br />3.02 Installation
<br />A. General: Except as otherwise indicated or specified, install ventilators in accordance with
<br />manufacturers installation instructions and recognized industry practices to insure that
<br />ventilators serve their intended function.
<br />B. Furnish exhaust fans with performance and capacities as listed on the design drawings.
<br />Section 15891 Ductwork:
<br />PART 1 GENERAL
<br />1.01 Fibrous Glass Ductwork
<br />A. General: The finished duct system shall meet the requirements of NFPA 90A by complying
<br />with the requirements of Underwriters Laboratory Standard for Safety UL181 for Class I
<br />arid Florida energy code, latest addition Air Duct.
<br />1) Dimensions shown on the plan are finished inside dimensions. Fabrication and
<br />installation shall conform to the manufacture?s recommendations and to the requirements
<br />of the latest edition of the SMACNA Fibrous Glass Duct Construction Standard.
<br />2) Grooves and shiplaps shall be made using sppecific tools and/or machines designed
<br />for that purpose. Ends shall mate so that s iplaps meet flush without ridges or rough
<br />edges.
<br />B. Delivery and Storage of Materials: Deliver all materials and/or fabricated duct sections and
<br />fittings to the job site and store in a safe dry placewith all labels in tact and legible. Use
<br />all means necessary at the job site to protect materials from dust, dirt, moisture and
<br />physical damage before, during and after installation, and to protect the installed work.
<br />1.02 Sheet Metal Ductwork (An option by the owner)
<br />A. This Contractor shall furnish and install all sheet metal work in connection with the
<br />heating, cooling and ventilating systems. Provide prime quality sheet steel, galvanized
<br />ductwork, lock -forming with double locked seams of the following thickness:
<br />UQ to 12" wide 26 USSG
<br />13 to 30" wide 24 gauge
<br />31" to 54" wide 22 gauge
<br />55" to 84" wide 20 gauge
<br />85" to 96" wide 18 gauge
<br />B. Round Ductwork shall conform to the following:
<br />Up to 12"O round 26 gauge
<br />13" to 18" round 24 gauge
<br />19" to 28" round 22 gauge
<br />29" to 36" round 20 gauge
<br />PART 2 PRODUCTS::
<br />A. Insulated Duct Systems:
<br />1) All supply and Return ducts and related fittin s of a J§" span or less operating at
<br />pllus or minus 2 inches W.G. shall bg fabricated Irom 1 1 minimum super -duct rated.
<br />Owen Corning Fiberglass duct board.( Min. R-6.0 .
<br />2) The facing shall be foil-kraft laminate reinforced
<br />B. Closure Materials:
<br />�rressure
<br />All �jooints, whether made in the shop or in the field, shall be stapled with minimum
<br />. outward clinching steel staples and sealed with a UL181 listed closure system.
<br />sensitive tapes shall be identified by the tape manufacturer?fs "name, date of
<br />manufacturer and product name/number. Tapes shall be at least 2 r� wide.
<br />2) As an alternative closure system, one of the U.L. listed 3"wide heat sealable tape
<br />closure may be used in all applications expect in bonding to sheet metal. Heat sealing
<br />equipment must be capable of maintaining a temperature of 550 degree F at the duct
<br />surface. Staples may be omitted when closures are made by machine using heat sealable
<br />tape.
<br />3) Mastics as listed by Owens -Corn in Fiberglass and appplied in conjunction with 3"
<br />wide glass fabric tape, shall be used o seal duple board to steel metal ducts an/or
<br />equipment where operating pressures are over 1 W. G.
<br />PART 3 EXECUTIONS:
<br />Inspection:
<br />1 � Prior to all work of this section, carefully inspect the installed work of other trades
<br />and verify that such work is complete to the point where duct system installation may
<br />5Coperly be started.
<br />Z Verify that the duct system may be installed in accordance with project drawings
<br />and Owens-Corning installation instructions.
<br />B. Closure:
<br />1) Flaps on all field joints shall be stapled 2" on center with minimum ? outward
<br />clinching staples near the edge of the flap. On fitting join where stop trig flaps cannot be
<br />d f f in length sFiall be ed. Tabs
<br />include as part of the construction, tape tabs o 6 to 8us
<br />s all be centered over the joint, a minimum of one tab per duct side on/or 12 on center.
<br />2� On field joints, all taping surfaces shall be wiped clean before sealing. Oil and
<br />grease contaminated surfaces shall be cleaned with a solvent recommended by the tape
<br />3anufacturer.
<br />) Mastics, when used, shall be applied in accordance with application instructions on
<br />the container.
<br />4) Mechanical fasteners of the type shown in Construction Standard shall be used to
<br />connect the duct board to the sheet metal.
<br />C. Hanging:
<br />11The duct system shall be supported at all fitting and at a maximum recommended by
<br />ACNA standards.
<br />2,) Hangers shall be minimum I" x 2" x I" x 22 gaga galvanized channel supported by
<br />1 wide by 22 ga. Or heavier straps, 'A" rods, or 12 gaga hanger wires, where local
<br />codes permit. Al?f hanger systems must be capable of wit'hstandmg a load of three times
<br />the an load.
<br />D. Reinforcement: All ducts must be reinforced per manufacturer's recommendation to
<br />erevent balloonin , collapsing or sagging.
<br />E. Accessories: Boors coils, dampers, registers, grills, diffusers air forming vanes air
<br />volume extractors and other accessories shall be installed as detailed in the SMANA
<br />Fibrous Glass Duct Ygt struction Standard. All 90 degree elbows shall contain air turning
<br />vanes spaced at 3 A maximum intervals, mounted in accordance with the vane
<br />manufacturers instructions. If air volume extractors or splitter dampers are required on
<br />side take -off and split duct connections, they shall be fabricated using appropriate
<br />hardware.
<br />F Inspection:
<br />1) Upon completion of duct system installation and before operation is to commence,
<br />visually inspect the system and verify that it has been correctly installed.
<br />2) Open all system dampers and turn on fans to blow all scraps and other loose
<br />material out of the duct system. Allow for a means of removal of such material.
<br />G. Check duct system to ensure there are no air leaks through joints, at reinforcement
<br />locations or through tears or punctures of the air barrier facing. If tears or punctures
<br />found, repair these using one of the U.L. approved closure systems.
<br />NOTE: All duct work sizes called for on the Plans are inside dimension and do not
<br />reflect allowance for internal insulation. If fibrous glass duct work is used, sizes
<br />must be increased accordingly.
<br />H. Flexible Connections: Provide flexible connections in all connections between air handling
<br />equipment and duct. Fabricate collars of Neoprene coated glass fabric, fire, water and
<br />weather resistant, approyjmotelYY"4 long and install with g0ficient slack. Secure
<br />rectan ular collars with I x 1/S flat bars fastened at 8 intervals or with slip joint. Tightly
<br />crimp abric into joint.
<br />I. Support of Ductwork: Ductwork shall be supported from the building structure. Install
<br />malleable
<br />Ilea le iron inserts in concrete duringconstruction.
<br />n. Where the construction is steel
<br />'n ductwork shall not be
<br />I attached to beams channels joints; etc. frame, steel clamps shall be a ) ,
<br />supported by the finished ceiling or other building components than the structure
<br />Section 15910 Support of Ductwork:
<br />Ductwork shall be supported from the building structure. Install malleable iron inserts in concrete
<br />during construction. Where the construction is steel frame, steel clamps shall be attached to
<br />beams, channels, joists, etc. Ductwork shall not be supported by the finished ceiling or other
<br />building components than the structure. Support shall be in accordance with the following
<br />schedules:
<br />Section 15936 Air Outlets and Inlets:
<br />PART 1 GENERAL
<br />A. Description of Work
<br />1) Extent of air outlets and inlets is indicated by drawings and schedules and the
<br />requirements of this section.
<br />2) Air outlets and inlets required for this project include:
<br />1. Diffusers.
<br />2. Registers and grilles.
<br />3. Door grilles.
<br />4. Louvers.
<br />5. Air intakes.
<br />B. Ceiling Air Diffusers:
<br />1) General: Expect as otherwise indicated provide manufacturers standard ceiling air
<br />ddiffusers where shown of size, shape, capacity and type indicated' constructed of materials
<br />and components as indicated, and as required for complete installation.
<br />2) Performance: Provide ceiling air diffusers that have, as minimum, temperature and
<br />velocity traverses, throw and drop, and noise criteria ratings for each size device as listed
<br />irl manufacturer's current data.
<br />3). Ceiling Compatibility. Provide diffusers with border styles that are specifically
<br />manufactured to fit into ceiling module with accurate fit and adequate support. Refer to
<br />general construction drawings and specifications for type of ceiling systems, which contain
<br />e ch type of ceiling air diffuser.
<br />43 Type:. Provide ceiling diffusers of type, capacity, and performance and with
<br />a cessories and finishes as listed on air distribution schedule, or approved equal.
<br />5� Insulation: Provide insulated blanket by manufacturer of grille on back of each
<br />ceiling grill where installed in ceiling.
<br />C. WALL REGISTERS AND GRILLES
<br />1) General: Except as otherwise indicated, provide manufacturer's standard wall
<br />registers and grilles where shown; of size shape, capacity and type indicated; constructed
<br />of materials and components as indicated and as required for complete installation.
<br />2) Performance: Provide wall registers and grilles that have, as minimum, temperature
<br />and velocity traverses, throw and drop, and noise criteria ratings for each size device as
<br />listed in manufacturers current data.
<br />3) Wall Compatibility. Provide registers and grilles with border styles that are
<br />compatible with adjacent wall systems and that are specifically manufactured to fit into
<br />wall construction with accurate fit and adequate support. Refer to general construction
<br />drawings and specifications for types of wall construction which will contain each type of
<br />wall register and grille.
<br />4) Types: Provide wall registers and grilles of type, capacity, and with accessories and
<br />fi ishes as listed on Air Distribution Schedule.
<br />5� Manufacturer: Subject to compliance with requirements, provide wall registers and
<br />grilles by one of the following:
<br />Price Manufacturing
<br />Krueger Mfg. Co.
<br />Titus Products Div., Philips Industries, Inc.
<br />Tuttle & Bailey series by Hart & Cooley.
<br />Metalaire, Metal Industries, Inc.
<br />D. Louvers:
<br />1) Except as otherwise indicated, provide manufacturer's standard louvers where
<br />shown; of size, shape capacity and type indicated; constructed of materials and
<br />c m onents as indicated, and as required for complete installation.
<br />2) Performance: Provide louvers that have rrlaximum free area, and minimum pressure
<br />drop for each type as listed in manufacturers current data, complying with louv2r
<br />schedule.
<br />3) Substrate Compatibility. Provide louvers with frame and sill styles that are
<br />compatible with adjacent substrate, and that are specifically manufactured to fit into
<br />construction openings with accurate fit and adequate support for weatherproof
<br />installation. Refer to general construction drawings and specifications for types of
<br />substrate which will contain each type of louver.
<br />MECHANICAL NOTES:
<br />1. ALL MECHANICAL WORKS AND AND INSTALLATIONS SHALL COMPLY
<br />WITH FLORIDA BUILDING/MECHANICAL CODES, 2004 W/2006 UPDATE EDITION.
<br />2' THESE DRAWINGS ARE DIAGRAMMATIC AND ARE PROVIDED TO CONVEY
<br />THE INTENT OF T1 E DESIGN. CONTRACTOR IS REQUIRED TO FIELD VERIFY
<br />THE EXISTING CONDITIONS AND SHALL CONSULT WITH THE
<br />ARCHITECT/ENGINEER OR HIS REPRESENTATIVE CONCERNING FIELD
<br />CONDITIONS THAT PRECLUDE THE CONSTRUCTION OF THESE PLANS.
<br />MODIFICATIONS DUE TO FIELD CONDITIONS SHALL BE MADE ONLY
<br />AFTER THE ARCHITECT/ENGINEER OR HIS REPRESENTATIVE HAS GIVEN
<br />HIS APPROVAL
<br />3. COORDINATE DIFFUSER AND GRILLE LOCATIONS WITH OTHER TRADES.
<br />4. ALL AIR CONDITIONING AND HEATING DUCT WORK SHALL BE CONSTRUCTED OF
<br />FIBERGLASS DUCT BOARD (R-6.0) IN ACCORDANCE WITH SMCANA STANDARDS
<br />, SEAMS SHALL BE STAPLED OR TAPED AND SEALED WITH GLASS FABRIC
<br />N IMBEDDED I MASTIC. USE OF PRESSURE SENSITIVE TAPES AS THE ONLY DUCT
<br />CLOSURE METHOD IS PROHIBITED. DUCTWORK SHALL BE SUPPORTED WITH 1 1/2"
<br />WIDE GALVANIZED CHANNEL, STRAPPED TO STRUCTURE WITH 1-1/2" WIDE, 18
<br />GAUGE GALVANIZED STEEL BANDS. WITH BANDS SHALL BE SECURED DIRECTLY
<br />TO THE STRUCTURE USING SCREWS, RIVETS, OR BOLTS. MAXIMUM DISTANCE
<br />BETWEEN SUPPORTS SHALL BE PER SMACNA AND FMC STANDARDS.
<br />FLEXIBLE DUCT WORK SHALL BE CONSTRUCTED OF U.L CLASS I POLYESTER
<br />LINED, METAL HELIX SUPPORTED, INSULATED FIBERGLASS FLEXIBLE DUCT (R-6.0).
<br />DUCT WORK SHALL BE SUPPORTED WITH 1-1/2" WIDE, 18 GAUGE GALVANIZED
<br />STEEL BANDS. BANDS SHALL BE SECURED DIRECTLY TO THE STRUCTURE USING
<br />SCREWS RIVETS, OR BOLTS. MAXIMUM DISTANCE BETWEEN SUPPORT SHALL BE
<br />5'-0" WITH MAXIMUM ALLOWABLE DUCT DROOP IS 1 INCH IN 10 FEET.
<br />5. ALL EXHAUST AND OUTSIDE AIR DUCT TO BE SHEET METAL MATERIAL
<br />6. ALL NEW DUCTWORK TO BE CONSTRUCTED AND INSTALLED IN ACCOR-
<br />DANCE WITH ASHRAE GUIDE AND SMACNA STANDARDS AND FL CODES.
<br />7. COORDINATE ALL MECHANICAL WORK, INCLUDING EQUIPMENT, DUCTWORK
<br />OR PIPING, WITH ARCHITECT AND OTHER TRADES PRIOR TO WORK.
<br />8. ALL INSULATION, MATERIAL, COVERINGS, ADHESIVES, VAPOR BARRIERS
<br />NOT TO EXCEED 25 AND SMOKE DEVELOPMENT NOT TO EXCEED 50.
<br />9. ALL DUCTWORK SHALL BE INSTALLED PER THE LATEST SMACNA MANUAL
<br />AND TAPES SHALL CONFORM TO NFPA 90A, FLAMESPREAD CLASSIFICATION
<br />10. ALL EQUIPMENT INSTALLATION SHALL COMPLY WITH THE MANUFACTURER'S
<br />SPECIFICATIONS AND CLEARANCE REQUIREMENTS.
<br />11. CONTRACTOR SHALL VISIT THE PROJECT SITE PRIOR TO THE BIDDING.
<br />12. UNLESS OTHERWISE NOTED. INSTALL DUCTWORK AS HIGH AS POSSIBLE
<br />OF STRUCTURE. COORDINATE DUCT ELEVATION WITH OTHER TRADES AND
<br />MODIFY AS REQUIRED TO CLEAR OBSTRUCTIONS.
<br />13. ALL DUCT SIZES SHOWN AS INSIDE DIMENSION. IN CASE OF CONFLICT
<br />WITH STRUCTURAL MEMBER, DUCT CROSS -SECTIONAL AREA SHOULD
<br />BE KEPT THE SAME.
<br />14. COORDINATE T-STAT LOCATIONS WITH OWNER.
<br />15. ALL DUCTWORK MATERIALS AND INSTALLATION SHALL CONFORM TO
<br />APPLICABLE STATE, COUNTY AND LOCAL CODES. DUCT MATERIAL SHALL
<br />BE ALL NEW AND IN GOOD CONDITION.
<br />16. AIR CONDITIONING UNIT SIZES AND CAPACITIES SHALL BE AS SCHEDULED.
<br />17. UNITS SHALL HAVE NON-FERROUS COILS AND FINS. UNITS SHALL BE
<br />EQUIPPED WITH ELECTRIC RESISTANCE HEATING, HERMETIC COMPRESSORS.
<br />18. PROVIDE FIRE S'TAT IN RETURN AIR DUCT.
<br />19. PROVIDE SINGLE POINT CONNECTION FOR ELEC. HEATER AND RTU'S UNITS.
<br />20. PROVIDE 1" - 30% EFFICIENCY THROWAWAY FILTERS, FARR 30/30 OR
<br />EQUAL.
<br />21. ALL FIBERGLASS DUCT AND DUCT WRAP SHALL BE SEALED WITH GLASS
<br />FAB AND MASTIC.
<br />22• PROVIDE ALL REQUIRED STARTERS AND LOCAL DISCONNECT AS PART
<br />THE PACKAGED EQUIPMENT. FIELD COORDINATE WITH ELECTRICAL WORK.
<br />MECHANICAL LEGENDS:
<br />® SUPPLY AIR DIFFUSER - ARROWS INDICATE
<br />PATTERN. NO PATTERN SHOWN EQUALS 4-WAY.
<br />Z RETURN AIR GRILLE
<br />® EXHAUST GRILLE
<br />SUPPLY AIR SLOT
<br />23. THIS CONTRACTOR SHALL COORDINATE CLEARANCE AROUND UNIT AND EXACT
<br />DIMENSIONS OF WALL OPENINGS WITH ARCHITECTURAL AND STRUCTURAL
<br />PLAN PRIOR TO CONSTRUCTION AND WITH GENERAL CONTRACTOR DURING
<br />CONSTRUCTION.
<br />24. CONTRACTOR TEST AND BALANCE AIR DISTRIBUTION CFM AS LISTED.
<br />25. ALL FLOOR, WALL AND ROOF OPENING SHALL BE SEALED
<br />WITH 3M FIRE SAFE MATERIAL OR EQUAL
<br />26. CONTRACTOR SHALL NOT CUT STRUCTURAL WORK IN A MANNER
<br />RESULTING IN A REDUCTION OF LOAD CARRYING CAPACITY OR LOAD/
<br />DELETION RATION. NOTIFY ARCHITECT OF ALL STRUCTURAL CUTS
<br />PRIOR TO EXECUTION TO OBTAIN APPROVAL
<br />27. CONDENSATE DRAIN LINES SHALL BE PVC PIPING SCHEDULES 40
<br />PVC PIPING WITH SOLVENT WELD JOINTS. PROVIDE A CONDENSATE
<br />TRAP AT A/C UNIT. THE TRAP SHALL BE
<br />CONSTRUCTED IN ACCORDANCE WITH THE MANUFACTURERS
<br />REQUIREMENTS. PROVIDE CAPPED TEES ON THE ENTERING AND
<br />LEAVING SIDE OF THE TRAP FOR CLEANOUTS AND PROVIDE
<br />ADDI
<br />TIONAL CLEANOUTS AT EVERY CHANGE OF DIRECTION AND
<br />EVERY 30 FEET OF PIPING LENGTH. CONDENSATE DRAINS SHALL
<br />BE INSULATED, PIPING TO BE SUPPORT PER FMC REQUIREMENTS.
<br />28. DISPOSE OF AIR CONDITIONING CONDENSATE AS NOTED ON THE PLANS.
<br />FIELD ROUTE DRAIN LINES IN A MANNER AS REQUIRED BY LOCAL CODE
<br />REQUIREMENTS AND IN A MANNER MEETING THE APPROVAL OF THE
<br />AUTHORITY HAVING JURISDICTION. CONDENSATE DRAIN DISCHARGE TO
<br />BE MIN. 1 FOOT FROM EXTERIOR WALL, FIELD VERIFY.
<br />29. ALL HVAC SYSTEMS SHALL BE BALANCED TO THE AIR QUANTITIES SHOWN
<br />AGAINST THE ACTUAL STATIC PRESSURE REQUIREMENTS OF THE INSTALLED
<br />SYSTEMS. CONTRACTOR SHALL PROVIDE POSITIVE MEANS FOR BALANCING EACH
<br />INDIVIDUAL AIR OUTLET AND INLET.
<br />30. UNFORESEEN CONDITIONS MAY EXIST AND NEW WORK MAY NOT BE FIELD
<br />LOCATED EXACTLY AS SHOWN ON THE DRAWINGS. COOPERATION WITH OTHER
<br />TRADES IN ROUTING AND/OR D BURIAL DEPTHS AS DETERMINED DURING
<br />CONSTRUCTION AND AS DIRECTED BY THE ARCHITECT/ENGINEER MAY BE
<br />NECESSARY. IT IS INTENDED THAT SUCH DEVIATIONS SHALL BE CONSIDERED
<br />AS PART OF THIS CONTRACT. FIELD VERIFY ALL CONDITIONS AND NOTIFY
<br />THE ARCHIETCT/ENGINEER WITH ANY DEVIATIONS.
<br />31. PROVIDE ALL ELECTRICAL WORK REQUIRED TO PLACE THE NEW
<br />MECHANICA SYSTEM IN OPERATION. ALL WORK SHALL BE IN
<br />ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE AND LOCAL CODE
<br />REQUIREMENTS. ELECTRICAL REQUIREMENTS INCLUDE MECHANICALLY
<br />RELATED CONTROL WIRING. FURNISH DUCT SMOKE DETECTOR.
<br />32. ALL EQUIPMENT INSTALLED OUTSIDE SHALL COMPLY WITH WIND RESISTANCE
<br />REQUIREMENTS AND WIND LOADS OF FLORIDA BUILDING CODES 2004.
<br />CH.3 AND 16.
<br />33. DO NOT SCALE THESE DRAWINGS.
<br />34. GENERAL CONTRACTOR SHALL FURNISH AND INSTALL SUPPLEMENTARY STEEL
<br />REQUIRED TO SUPPORT ALL MECHANICAL EQUIPMENT.
<br />35. PROVIDE SUPPLY AIR FLEXIBLE DUCT CONNECTION WITH SPIN IN FITTING
<br />EQUIPPED WITH BALANCING VOLUME DAMPER.
<br />36. INSTALL CLEANOUTS AT EVERY 90-DEGREE TURN ON AIR CONDITIONING
<br />CONDENSATE DRAIN ONES.
<br />37. PROVIDE ALL EXHAUST AIR DUCTS WITH BACK DRAFT DAMPER.
<br />38. WHERE DIFFERENCES OCCUR BETWEEN WORKING CLEARANCE AND ACTUAL
<br />PROPOSED LOCATION Tl NOTIFY ARCHITECT IMMEDIATELY BEFORE ANY WORK.
<br />39• THE CONTRACTOR SHALL VISIT AND CAREFULLY EXAMINE THOSE PORTIONS OF THE
<br />BUILDING AND SITE AFFECTED BY THIS WORK BEFORE SUBMITTING PROPOSALS,
<br />SO AS TO BECOME FAMILIAR WITH EXISTING CONDITIONS AND DIFFICULTIES THAT
<br />WILL AFFECT EXECU11ON OF THE WORK. SUBMISSION OF PROPOSAL WILL
<br />INDICATE THAT SUCH EXAMINATION BY THE CONTRACTOR HAS BEEN MADE.
<br />LATER CLAIMS FOR LABOR EQUIPMENT OR MATERIALS REQUIRED BECAUSE
<br />OF DIFFICULTIES ENCOUNTERED WILL NOT BE RECOGNIZED.
<br />40. FIELD VERIFY ALL MECHANICAL SYSTEM ELECTRICAL'S REQUIREMENTS WITH
<br />ELECTRICAL PANELS AND DRAWINGS TO ENSURE CORRECT REQUIREMENTS.
<br />NOTIFY ARCHITECT/ENGINEER IF ANY DISREFENCIES.
<br />41. INSTALL FIRE DAMPER AND FIRE/SMOKE DAMPER FOR DUCT PRNETATiNG
<br />RATED PARTITION, REFER TO ARCHITECTURAL DRAWINGS FOR FIRE/SMOKE
<br />RATING, FIELD VERIFY.
<br />o
<br />RETURN AIR SLOT
<br />120
<br />ROUND DUCTWORK. DIAMETER INDICATED IN INCHES.
<br />20/12
<br />RECTANGULAR DUCTWORK NET FREE AREA. SIZE INDICATED IN
<br />INCHES, FIRST NUMBER IS SIDE SHOWN.
<br />DASHED LINES INDICATE ACOUSTICAL LINER. SEE
<br />SPECIFICATIONS FOR THICKNESS.
<br />OFtTTM
<br />FLEXIBLE DUCT
<br />_f
<br />®
<br />SUPPLY OR OUTSIDE AIR DUCT
<br />RETURN AIR DUCT.
<br />®
<br />RELIEF OR EXHAUST AIR DUCT.
<br />''% OR N
<br />TURNING VANES
<br />RADIUS DUCTWORK ELBOW -
<br />ROUND OR RECTANGULAR.
<br />RECTANGULAR DUCTWORK BRANCH TAKE -OFF
<br />WITH 45 DEGREE BRANCH INLET.
<br />FLARED SPIN -IN WITH DAMPER AND
<br />d�:,
<br />FLEX DUCT (DIFFUSER CONNECTION).
<br />ROUND DUCT BRANCH TAKE -OFF FROM
<br />RECTANGULAR MAIN WITH CONICAL TAP.
<br />0:m
<br />DUCTWORK SIZE TRANSITION.
<br />DUCTWORK SIZE TRANSITION FROM
<br />RECTANGULAR TO ROUND
<br />nH n DUCT MOUNTED HUMIDIFIER
<br />S POINT OF CONNECTION OR DISCONNECTION
<br />�---- , MOTORIZED DAMPER
<br />DAMPER TYPE: VOLUME DAMPER
<br />SD -SMOKE DAMPER
<br />BD -COUNTER BALANCE
<br />BACKDRAFT DAMPER
<br />SB - SECURITY BARS Q THERMOSTAT
<br />FSD -FIRE/SMOKE DAMPER
<br />NO MARK INDICATES FIRE DAMPER
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<br />drawn: HD
<br />checked : HD
<br />date: 03-21-08
<br />prof. no: P07-15
<br />M = 1
<br />
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