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<br />B. Panel and Frame: Minimum thickness 0.0428-inch stainless steel.
<br />C. Fasteners: Stainless steel. Panel fasteners shall not penetrate duct wall.
<br />D. Gasket: Comply with NFPA 96; grease -tight, high -temperature ceramic fiber, rated for
<br />minimum 2000 deg F.
<br />E. Minimum Pressure Rating: 10-inch wg, positive or negative.
<br />2.14 FLEXIBLE DUCTS
<br />A. Insulated, Flexible Duct: UL 181, Class 1, aluminum laminate and polyester film with
<br />latex adhesive supported by helically wound, spring -steel wire; fibrous -glass
<br />insulation; polyethylene vapor -barrier film.
<br />1. Pressure Rating: 10-inch wg positive and 1.0-inch wg negative.
<br />2. Maximum Air Velocity: 4000 fpm.
<br />3. Temperature Range: Minus 20 to plus 210 deg F.
<br />4. Insulation R-value: R-6 minimum installed performance (1-5/8 inch minimum
<br />thickness).
<br />B. Flexible Duct Connectors:
<br />1. Clamps: Stainless -steel band with cadmium -plated hex screw to tighten band
<br />with a worm -gear action in sizes 3 through 18 inches, to suit duct size.
<br />2.15 GRILLES, REGISTERS AND DIFFUSERS
<br />A. Refer to schedule for requirements for grilles, registers and diffusers.
<br />PART 3-EXECUTION
<br />3.1 DUCT INSTALLATION
<br />A. Drawing plans, schematics, and diagrams indicate general location and arrangement
<br />of duct system. Indicated duct locations, configurations, and arrangements were used
<br />to size ducts and calculate friction loss for air -handling equipment sizing and for other
<br />design considerations. Install duct systems as indicated unless deviations to layout
<br />are approved on Shop Drawings and Coordination Drawings.
<br />B. Install ducts according to SMACNA's "HVAC Duct Construction Standards - Metal
<br />and Flexible" unless otherwise indicated.
<br />3.2 DUCT SEALING
<br />A. Seal ducts for duct static -pressure, seal classes, and leakage classes specified in
<br />"Duct Schedule" Article contained within this specification according to SMACNA's
<br />"HVAC Duct Construction Standards - Metal and Flexible."
<br />3.3 HANGER AND SUPPORT INSTALLATION
<br />A. Comply with SMACNA's "HVAC Duct Construction Standards -Metal and Flexible,"
<br />Chapter 5, "Hangers and Supports."
<br />3.4 DUCT SCHEDULE
<br />A. Supply Ducts:
<br />1. Ducts Connected to Fan Coil Units, Furnaces, Heat Pumps, and Terminal Units:
<br />a. Pressure Class: Positive 2-inch wg.
<br />b. Minimum SMACNA Seal Class: A.
<br />c. SMACNA Leakage Class for Rectangular: 12.
<br />d. SMACNA Leakage Class for Round: 12.
<br />3.5 ACCESSORY INSTALLATION
<br />A. Install duct accessories according to applicable details in SMACNA's "HVAC Duct
<br />Construction Standards - Metal and Flexible" for metal ducts and in NAIMA AH116,
<br />"Fibrous Glass Duct Construction Standards," for fibrous -glass ducts.
<br />3.6 GRILLES, REGISTERS AND DIFFUSER INSTALLATION
<br />A. Install in accordance with manufacturer's instructions.
<br />B. Check location of outlets and inlets and make necessary adjustments in position to
<br />conform with architectural features, symmetry, and lighting arrangement.
<br />C. Ceiling -Mounted Outlets and Inlets: Drawings indicate general arrangement of ducts,
<br />fittings, and accessories. Air outlet and inlet locations have been indicated to achieve
<br />design requirements for air volume, noise criteria, airflow pattern, throw, and pressure
<br />drop. Make final locations where indicated, as much as practical. For units installed in
<br />lay -in ceiling panels, locate units in the center of panel. Coordinate exact location with
<br />Architectural reflected ceiling plan. Where architectural features or other items conflict
<br />with installation, notify Architect for a determination of final location.
<br />D. Install diffusers to ductwork with air tight connection.
<br />E. Provide balancing dampers on duct take -off to diffusers, and grilles and registers,
<br />despite whether dampers are specified as part of the diffuser, or grille and register
<br />assembly.
<br />F. Install diffusers, registers, and grilles with airtight connections to ducts and to allow
<br />service and maintenance of dampers, air extractors, and fire dampers.
<br />G. Paint ductwork visible behind air outlets and inlets matte black. Refer to Division
<br />9.lnstall and support all GRDs per manufacturer's recommendations.
<br />1. GRDs weighing less than 20 pounds shall be positively attached to ceiling
<br />suspension main runners or to cross runners with the same carrying capacity as
<br />the main runners.
<br />2. GRDs weighting greater than 20 pounds, but not more than 56 pounds, in
<br />addition to the above, shall have two No. 12 gauge hangers connected from the
<br />terminal or service to the ceiling hangers or to the structure above. These wires
<br />may be slack.
<br />3. GRDs weighing greater than 56 pounds shall be supported directly from the
<br />structure above by approved hangers.
<br />H. Forward GRID Ak factors to Testing, Adjusting and Balancing Contractor.
<br />END OF SECTION 23 3000
<br />SECTION 23 8129 -VARIABLE REFRIGERANT
<br />FLOW HVAC SYSTEMS
<br />PART 1-GENERAL
<br />1.1 SECTION INCLUDES
<br />A. Variable Refrigerant Volume HVAC System Includes:
<br />1. Indoor/Evaporator Units.
<br />2. Refrigerant Piping.
<br />3. Control Panels.
<br />4. Control Wiring.
<br />1.2 RELATED DOCUMENTS
<br />A. Section 22 1005 - Plumbing Piping: Condensate Drain Piping.
<br />1.3 REFERENCE STANDARDS
<br />A. AHRI 210/240 - Standard for Performance Rating of Unitary Air -Conditioning and Air -
<br />Source Heat Pump Equipment; 2008, Including all Addenda.
<br />B. ASHRAE STD 90.1 I-P - Energy Standard for Buildings Except Low -Rise Residential
<br />Buildings; Most recent edition adopted by Authority Having Jurisdiction, including all
<br />applicable amendments and supplements.
<br />C. ITS (DIR) - Directory of Listed Products; current edition.
<br />D. NFPA 70 - National Electrical Code; most recent edition adopted by the Authority
<br />Having Jurisdiction, including all applicable amendments and supplements.
<br />E. UL 1995 - Heating and Cooling Equipment; current edition, including all revisions.
<br />1.4 ADMINISTRATIVE REQUIREMENTS
<br />A. Preinstallation Meeting: Conduct a preinstallation meeting one week prior to the start
<br />of the work of this section; require attendance by all affected installers.
<br />1.5 SUBMITTALS
<br />A. See Section 013000 - Administrative Requirements for submittal procedures.
<br />B. Product Data: Submit manufacturers standard data sheets showing the following for
<br />each item of equipment. Marked to correlate to equipment item markings indicated in
<br />contract documents:
<br />1. Indoor/Evaporator Units:
<br />a. Cooling Capacity: BTU/H (W).
<br />b. Heating Capacity: BTU/H (W).
<br />c. Cooling Input Power: BTU/H (KW).
<br />d, Heating Input Power: BTU/H (KW).
<br />e. Operating temperature range, cooling and heating.
<br />f. Air Flow: Cubic feet pr minute (cubic meters per second).
<br />g. Fan curves.
<br />h. External Static Pressure (ESP): Inches WG (PA).
<br />i. Sound Pressure Level: DB(A).
<br />j. Electrical Data:
<br />1) Maximum Circuit Amps (MCA).
<br />2) Maximum Fuse Amps (MFA).
<br />3) Maximum Starting Current: MSC).
<br />4) Full Load Amps (FLA).
<br />5) Total Over Current Amps (TOCA)
<br />6) Fan Motor: HP (W).
<br />k. Weight and dimensions.
<br />I. Control options.
<br />C. Operating and Maintenance Data:
<br />P 9
<br />1. Manufacturer's complete standard instruction for each unit of equipment and
<br />control panel.
<br />2. Custom -prepared system operation, troubleshooting, and maintenance
<br />instructions and recommendations.
<br />3. Identification of replaceable parts and local source of supply.
<br />D. VRF Piping Layout Drawings:
<br />1. Submit detailed VRF piping layout drawings at 1/8" -1'0" minimum scale
<br />complete with the following information:
<br />a. Actual pipe routing, fittings, hanger and support types, accessories, etc. with
<br />lengths and refrigerant charge noted.
<br />b. Include insulation thickness and type of insulation.
<br />c. Room names and numbers, ceiling types and ceiling heights.
<br />2. Submit VRF piping and equipment layout drawings. Verify clearance and
<br />interferences with other trades prior to preparing drawings. IMEG will provide
<br />electronic copies of piping drawings for contractor's use if the contractor signs
<br />and returns an "Electronic File Transfer" waiver provided by IMEG. IMEG will not
<br />consider blatant reproductions of original file copies an acceptable alternative for
<br />this submittal.
<br />E. Submit Electrical Power and Controls Diagrams:
<br />1. Power wiring diagrams for each component.
<br />2. Wiring diagrams and layouts for each control panel showing all termination
<br />numbers.
<br />3. Schematic diagrams for all control, communication and power wiring. Provide a
<br />schematic drawing of the central system installation. Show all interface wiring to
<br />the control system.
<br />4. Schematic diagrams for all field sensors and controllers.
<br />5. A schematic diagram for each controlled system, the schematics shall have all
<br />control points labeled. The schematics shall graphically show the location of all
<br />control elements in the system.
<br />6. A schematic wiring diagram for each controlled system. Each schematic shall
<br />have all elements labeled. Label all terminals.
<br />7. All installation details and any other details required to demonstrate that the
<br />system will function properly,
<br />8. All interface requirements with other systems.
<br />1.6 QUALITY ASSURANCE
<br />A. Installer Qualifications: Trained and approved by manufacturer of equipment.
<br />1.7 DELIVERY, STORAGE AND HANDLING
<br />A. Deliver, store and handle equipment and refrigerant piping according to
<br />manufacturer's recommendations.
<br />1.8 WARRANTY
<br />A. See Section 07 7800 - Closeout Submittals, for additional warranty requirements.
<br />B. Compressors: Provie manufacturer's warranty for six (6) years from date of
<br />tio installan. During the stated period, should any part fail due to defects in material
<br />and workmanship, it shall be repaired or replaced at the discretion of Carrier
<br />Corporation, according to Carriers terms and conditions. All warranty service work
<br />shall be performed by a Carrier factory trained service professional.
<br />PART 2-PRODUCTS
<br />2.1 MANUFACTURERS
<br />A. Basis of Design: the system design indicated in contract documents is based on
<br />equipment and system designed by Carrier.
<br />B. Systems manufactured by other manufacturers will not be considered unless
<br />approved and responsibility accepted for by the landlord.
<br />2.2 HVAC SYSTEM DESIGN
<br />A. System Operation: Heating and cooling, simultaneously.
<br />1. Zoning: Provide capability for temperature control for each individual
<br />indoor/evaporator unit independently of all other units.
<br />2. Zoning: Provide heating/cooling selection for each individual indoor/evaporator
<br />unit independently of all other units.
<br />3. Provide a complete functional system that achieves the specked performance
<br />based on the specified design conditions and that is designed and constructed
<br />according to the equipment manufacturers requirements.
<br />4. Conditioned spaces are indicated on drawings.
<br />5. Indoor/evaporator unit locations are indicated on drawings.
<br />6. Branch selector unit locations are not indicated on drawings.
<br />7. Required equipment unit capacities are indicated on drawings.
<br />8. Refrigerant piping sizes are not indicated on drawings.
<br />9. Connect equipment to condensate piping provided by others; condensate piping
<br />is indicate on drawings.
<br />B. Controls: Provide the following control interfaces:
<br />1. For each indoor/evaporator unit: One wall -mounted wired "local" controller, with
<br />temperature sensor; located where indicated.
<br />C. Local Controllers: Wall -mounted wired, containing temperature sensor.
<br />2.3 EQUIPMENT
<br />A. All Units: Factory assembled, wired, and piped and factory tested for function and
<br />safety.
<br />1. Performance certification: AHRI certified; WWW.AHRINET.ORG.
<br />2. Safety cerfiftcation: Tested to UL 1995 by UL or Intertek-ETL, listed in ITS (DIR),
<br />and bearing the certification label.
<br />3. Provide units capable of serving the zones indicated.
<br />4. Energy Efficiency: Report EER and COP based on tests conducted at "Full Load"
<br />in accordance with AHRI 210/240 or alternate test method approved by U.S.
<br />Department of Energy.
<br />B. Electrical Characteristics:
<br />1. Power - Indoor Units: 208 to 230 Volts, Single Phase, 60 HZ
<br />2. 208-230 Voltage Range: 187 to 253 Volts.
<br />C. Refrigerant Piping:
<br />1. Insulate each refrigerant line individually between the condensing and indoor
<br />units.
<br />2.4 INDOOR/EVAPORATOR UNITS
<br />A. All Indoor/Evaporator Units: Factory assembled and tested DX fan -coil units, with
<br />electronic proportional expansion valve, control circuit board, factory wiring and
<br />piping, self -diagnostics, auto -restart function, 3-minute fused time delay, and test run
<br />switch.
<br />1. Refrigerant: Refrigerant circuits factory -charged with dehydrated air, for field
<br />charging.
<br />2. Temperature Control Mechanics: Return air thenmistor and computerized
<br />proportional -integral -derivative (PID) control of super heat.
<br />3. Coils: Direct expansion type constructed from copper tubes expanded into
<br />aluminum fins to forma mechanical bond; waffle louver fin and high heat
<br />exchange, rifled bore tube design; factory tested.
<br />a. Provide thermistor on liquid and gas lines.
<br />4. Fans: Direct -drive, with statically and dynamically balanced impellers; high and
<br />low speeds unless otherwise indicated; motor thermally protected.
<br />5. Return Air Filter: Washable long -fife net fitter with mildew proof resin, unless
<br />otherwise indicated.
<br />6. Condensate Drainage: Built-in condensate drain pan with PVC drain connection.
<br />a. Units with Built -In Condensate Pumps: Provide condensate safety shutoff
<br />and alarm.
<br />7. Cabinet Insulation: Sound absorbing foamed polystyrene and polyethylene
<br />insulation.
<br />B. Concealed -In -Ceiling Units: Ducted horizontal discharge and return; galvanized steel
<br />cabinet.
<br />1. Return Air Filter: manufacturer's standard.
<br />2. Sound Pressure: 29 DBA,measured at low speed at 5 feet (1.5 M) below unit.
<br />3. Provide eternal static pressure switch adjustable for high efficiency filter
<br />operation.
<br />4. Condensate Pump: Built-in, with lift of 9 inches (229 ram), minimum.
<br />5. Switch box accessible from side or bottom.
<br />PART 3 - EXECUTION
<br />3.1 EXAMINATION
<br />A. Verify that required electrical services have been installed and are in the proper
<br />locations prior to starting installation.
<br />B. Verify that condensate piping has been installed and is in the proper location prior to
<br />starting installation.
<br />C. Notify Architect if conditions for installation are unsatisfactory.
<br />3.2 INSTALLATION
<br />A. Install in accordance with manufacturer's instructions.
<br />B. Install refrigerant piping in accordance with equipment manufacturer's instructions.
<br />C. Perform wiring in accordance with NFPA 70, National Electric Code (NEC).
<br />D. Coordinate with installers of systems and equipment connecting to this system.
<br />3.3 SYSTEM STARTUP
<br />A. Provide manufacturers field representative to perform system startup.
<br />B. Prepare and start equipment and system in accordance with manufacturers
<br />instructions and recommendations.
<br />C. Adjust equipment for proper operation within manufacturer's published tolerances.
<br />3.4 CLEANING
<br />A. Clean exposed components of dirt, finger marks, and other disfigurements.
<br />3.5 CLOSEOUT ACTIVITIES
<br />A. Demonstration: demonstrate operation of system to Owners personnel.
<br />1. Use operation and maintenance data as reference during demonstration.
<br />2. Conduct walking tour of project.
<br />3. Briefly describe function, operation, and maintenance of each component.
<br />B. Training: Train Owner's personnel on operation an maintenance of system.
<br />1. Use operation and maintenance manual as training reference, supplemented with
<br />additional training materials as required.
<br />2. Provide minimum of two hours of training.
<br />3. Instructor: Manufacturers training personnel.
<br />4. Location: At project site.
<br />3.6 PROTECTION
<br />A. Protect installed components from subsequent construction operations.
<br />B. Replace exposed components broken or otherwise damaged beyond repair.
<br />END OF SECTION 23 8129
<br />St. Louis
<br />319 North 4th Street
<br />Suite 1000
<br />St. Louis, Missouri 63102
<br />(314)231-5700
<br />Pio Team
<br />GENERAL CONTRACTOR:
<br />To Be Determined
<br />PROFESSIONAL ENGINEER:
<br />.IMEG
<br />IMEG
<br />7600 E Orchard Road, Suite 250-S
<br />Greenwood Village, CO 80111
<br />Phone: 303.796.6000
<br />IMEG Project No: 24000280.07
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<br />The Professional Architect's seal of hed tm this cheat
<br />applies only to the material and items shown on this
<br />sheet. All drawing, instruments or other docurai rot
<br />eahibilirg this seal shall not be cowder. prepared by
<br />this architect and this architect aVnewy disclaims any
<br />and all resporeibility for such plans, drawing, or
<br />doaments not exhibiting this seal.
<br />This drawing and detail, on it are the sole property of the
<br />architect and may be neatl for this specific project only.
<br />it,Irall not be maned, copied or reproduced, in whole or
<br />part, or for any other purpose or project without the
<br />carmen ron,ent of anonhaot.
<br />No. Description Dale
<br />Sha tTi,
<br />MECHANICAL AND
<br />PLUMBING
<br />SPECIFICATIONS
<br />Prged Number Sneel Number.
<br />2024906.011
<br />Drewn By.
<br />MSK A
<br />Issue Oae: Yuw
<br />MARCH 07, 2024
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