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SECTION 230593 - HVAC TESTING, ADJUSTING AND BALANCING CONTINUED
<br />2.3 EXAMINATION CONTINUED
<br />B. TEST AND VERIFICATION OF CONTROL SYSTEM
<br />1. THE AIR BALANCE AND TESTING AGENCY, WITH THE AID OF THE CONTROL CONTRACTOR,
<br />SHALL VERIFY THAT THE CONTROL SYSTEMS ARE PERFORMING IN ACCORDANCE TO THE
<br />SPECIFIED CRITERIA.
<br />2. THIS PROCEDURE SHALL NOT RELIEVE THE CONTROL CONTRACTOR OF ANY
<br />RESPONSIBILITIES. THIS PARAGRAPH IS INTENDED TO INSURE THAT THE CONTROL
<br />SYSTEM IS COMPLETELY OPERATIONAL AND ADJUSTED AT THE TIME THE AIR SYSTEMS
<br />TESTING AND BALANCING IS BEING ACCOMPLISHED.
<br />2.4 PREPARATION
<br />A. PREPARE A TAB PLAN THAT INCLUDES STRATEGIES AND STEP-BY-STEP PROCEDURES,
<br />B. COMPLETE SYSTEM -READINESS CHECKS AND PREPARE REPORTS.
<br />C. PROVIDE INSTRUMENTS REQUIRED FOR TESTING, ADJUSTING AND BALANCING OPERATIONS.
<br />2.5 PROCEDURES
<br />A. GENERAL
<br />1. ALL PROCEDURES SHALL BE IN ACCORDANCE WITH AND MEET ALL THE REQUIREMENTS
<br />OF EITHER AABC OR NEBB PROCEDURAL STANDARDS FOR ALL EQUIPMENT AND SYSTEMS
<br />INCLUDED IN THE PROJECT. THE REQUIREMENTS LISTED IN THIS SECTION ARE
<br />INTENDED TO BE SUPPLEMENTARY TO THE REQUIREMENTS OF THESE STANDARDS.
<br />B. EXISTING SYSTEMS
<br />1. PERFORM A PRE -CONSTRUCTION INSPECTION OF EXISTING EQUIPMENT THAT IS TO
<br />REMAIN AND BE REUSED.
<br />2. MEASURE AND RECORD THE OPERATING SPEED, AIRFLOW AND STATIC PRESSURE OF
<br />EACH FAN.
<br />a. MEASURE MOTOR VOLTAGE AND AMPERAGE. COMPARE THE VALUES TO MOTOR
<br />NAMEPLATE INFORMATION.
<br />3. BEFORE PERFORMING TESTING AND BALANCING OF EXISTING SYSTEMS, INSPECT EXISTING
<br />EQUIPMENT THAT IS TO REMAIN AND BE REUSED TO VERIFY THAT EXISTING EQUIPMENT
<br />HAS BEEN CLEANED AND REFURBISHED.
<br />a. DEFICIENCIES NOTED IN THE PRE -CONSTRUCTION REPORT ARE CORRECTED.
<br />4. PERFORM TESTING AND BALANCING OF EXISTING SYSTEMS TO THE EXTENT THAT
<br />EXISTING SYSTEMS ARE AFFECTED BY THE RENOVATION WORK.
<br />2.6 TOLERANCES
<br />A. BALANCE ALL SYSTEMS TO WITHIN PLUS OR MINUS 10% OF DESIGN PARAMETERS. WHEN
<br />SYSTEM PERFORMANCE ALLOWS, BALANCE SYSTEMS SO THAT TOTAL SYSTEM FLOWS ARE AT
<br />A MINIMUM OF 100% OF DESIGN PARAMETERS, WITHOUT CAUSING ANY INDIVIDUAL FLOW
<br />LOCATION TO BE MORE THAN 10% IN EXCESS OF DESIGN PARAMETERS.
<br />2.7 REPORTING
<br />A. FINAL REPORT
<br />1. GENERAL: PREPARE A CERTIFIED WRITTEN REPORT; TABULATE AND DIVIDE THE REPORT
<br />INTO SEPARATE SECTIONS FOR TESTED SYSTEMS AND BALANCED SYSTEMS.
<br />a. INCLUDE A CERTIFICATION SHEET AT THE FRONT OF THE REPORT'S BINDER, SIGNED
<br />AND SEALED BY THE CERTIFIED TESTING AND BALANCING ENGINEER.
<br />b. INCLUDE A LIST OF INSTRUMENTS USED FOR PROCEDURES, ALONG WITH PROOF OF
<br />CALIBRATION.
<br />2.8 INSPECTIONS
<br />A. FINAL INSPECTION:
<br />1. AFTER INITIAL INSPECTION IS COMPLETE AND DOCUMENTATION BY RANDOM CHECKS
<br />VERIFIES THAT TESTING AND BALANCING ARE COMPLETE AND ACCURATELY DOCUMENTED
<br />IN THE FINAL REPORT, REQUEST THAT A FINAL INSPECTION BE MADE.
<br />2. IF RECHECKS YIELD MEASUREMENTS THAT DIFFER FROM THE MEASUREMENTS
<br />DOCUMENTED IN THE FINAL REPORT BY MORE THAN THE TOLERANCES ALLOWED, THE
<br />MEASUREMENTS SHALL BE NOTED AS "FAILED."
<br />3. IF THE NUMBER OF "FAILED" MEASUREMENTS IS GREATER THAN 10 PERCENT OF THE
<br />TOTAL MEASUREMENTS CHECKED DURING THE FINAL INSPECTION, THE TESTING AND
<br />BALANCING SHALL BE CONSIDERED INCOMPLETE AND SHALL BE REJECTED.
<br />B. TAB WORK WILL BE CONSIDERED DEFECTIVE IF IT DOES NOT PASS FINAL INSPECTIONS.
<br />C. PREPARE TEST AND INSPECTION REPORTS.
<br />PART 1 GENERAL
<br />1.1 QUALITY ASSURANCE
<br />A. CONSTRUCT DUCTWORK TO THE UNIFORM MECHANICAL CODE AND SMACNA, HVAC DUCT
<br />CONSTRUCTION STANDARDS - METAL AND FLEXIBLE, LATEST EDITION.
<br />PART 2 PRODUCTS
<br />2.1 SHEET METAL MATERIALS
<br />A. COMPLY WITH SMACNA'S "HVAC DUCT CONSTRUCTION STANDARDS --METAL AND FLEXIBLE"
<br />FOR ACCEPTABLE MATERIALS, MATERIAL THICKNESS AND DUCT CONSTRUCTION METHODS,
<br />UNLESS OTHERWISE INDICATED. SHEET METAL MATERIALS SHALL BE FREE OF PITTING,
<br />SEAM MARKS, ROLLER MARKS, STAINS, DISCOLORATIONS AND OTHER IMPERFECTIONS.
<br />B. GALVANIZED SHEET STEEL: LOCK -FORMING QUALITY; COMPLYING WITH ASTM A 653/A 653M
<br />AND HAVING G60 (Z180) COATING DESIGNATION; DUCTS SHALL HAVE MILL-PHOSPHATIZED
<br />FINISH FOR SURFACES EXPOSED TO VIEW.
<br />2.2 LOW VELOCITY DUCTWORK AND FITTINGS
<br />A. GENERAL
<br />1. LOW VELOCITY DUCTWORK SHALL BE DEFINED AS ALL DUCTWORK NOT SPECIFICALLY
<br />DEFINED AS MEDIUM VELOCITY DUCTWORK.
<br />2, FABRICATE, INSTALL AND SUPPORT IN ACCORDANCE WITH SMACNA HVAC DUCT
<br />CONSTRUCTION STANDARDS - METAL AND FLEXIBLE, THE UNIFORM MECHANICAL CODE,
<br />AND AS INDICATED. PROVIDE DUCT MATERIAL, GAGES, REINFORCING AND SEALING FOR
<br />OPERATING PRESSURES INDICATED.
<br />B. RECTANGULAR DUCT AND FITTING FABRICATION
<br />1. FABRICATE DUCTS, ELBOWS, TRANSITIONS, OFFSETS, BRANCH CONNECTIONS, AND OTHER
<br />CONSTRUCTION ACCORDING TO SMACNA'S "HVAC DUCT CONSTRUCTION
<br />STANDARDS --METAL AND FLEXIBLE' AND COMPLYING WITH REQUIREMENTS FOR METAL
<br />THICKNESS, REINFORCING TYPES AND INTERVALS, TIE -ROD APPLICATIONS AND JOINT
<br />TYPES AND INTERVALS.
<br />C. ROUND AND FLAT -OVAL DUCT AND FITTING FABRICATION
<br />1. GENERAL
<br />a. DIAMETER AS APPLIED TO FLAT -OVAL DUCTS IN THIS ARTICLE IS THE DIAMETER OF A
<br />ROUND DUCT WITH A CIRCUMFERENCE EQUAL TO THE PERIMETER OF A GIVEN SIZE OF
<br />FLAT -OVAL DUCT.
<br />b. ROUND, LONGITUDINAL- AND SPIRAL LOCK -SEAM DUCTS: FABRICATE SUPPLY DUCTS OF
<br />GALVANIZED STEEL ACCORDING TO SMACNA'S "HVAC
<br />c. DUCT CONSTRUCTION STANDARDS --METAL AND FLEXIBLE."
<br />d. FLAT -OVAL, SPIRAL LOCK -SEAM DUCTS: FABRICATE SUPPLY DUCTS ACCORDING TO
<br />SMACNA'S "HVAC DUCT CONSTRUCTION STANDARDS --METAL AND FLEXIBLE" FABRICATE
<br />DUCTS LARGER THAN 72 INCHES (1830 MM) IN DIAMETER WITH CONTINUOUSLY
<br />BUTT -WELDED LONGITUDINAL SEAMS.
<br />2.3 MEDIUM VELOCITY DUCTWORK AND FITTINGS
<br />A. GENERAL
<br />1. MANUFACTURERS
<br />a. UNITED MCGILL CORP., b. VENTLINE, c. METCO.
<br />2. BASIS OF DESIGN
<br />a. UNITED MCGILL CORP., MODEL UNI-SEAL; UN -LINED.
<br />3. UNITED MCGILL CORP., MODEL K-27; LINED WITH INSULATION.
<br />4. MEDIUM VELOCITY DUCTWORK SHALL BE DEFINED AS ALL DUCTWORK BETWEEN THE AIR
<br />HANDLING UNIT OR MAIN SYSTEM FAN AND THE TERMINAL SUPPLY BOXES; OR EXHAUST.
<br />5. FABRICATE, INSTALL AND SUPPORT IN ACCORDANCE WITH SMACNA HVAC DUCT CONSTRUCTION
<br />STANDARDS - METAL AND FLEXIBLE, THE UNIFORM MECHANICAL CODE AND AS INDICATED.
<br />PROVIDE DUCT MATERIAL, GAGES, REINFORCING AND SEALING FOR OPERATING PRESSURES.
<br />B. ROUND DUCTS
<br />DUCT SIZE INCHES U.S. DUCT GAUGE UP TO 8 TO 14 TO 26 TO 36
<br />FITTING SIZE INCHES U.S. DUCT GAUGE UP TO 26 TO 50
<br />C. FLAT OVAL DUCTS
<br />1. DUCT GAUGE: IN ACCORDANCE WITH SMACNA.
<br />DUCT SIZE (MAJOR AXIS) INCHES U.S. DUCT GAUGE UP TO 24 TO 48
<br />FITTING SIZE INCHES U.S. DUCT GAUGE UP TO 36 CHEMICAL FUME HOOD EXHAUST DUCTWORK
<br />2.4 CHEMICAL FUME HOOD EXHAUST DUCTWORK
<br />A. FABRICATE AND SUPPORT IN ACCORDANCE WITH SMACNA, HVAC DUCT CONSTRUCTION STANDARD,
<br />METAL AND FLEXIBLE AND THE UNIFORM MECHANICAL CODE. PROVIDE DUCT MATERIAL, GAGES,
<br />REINFORCING AND SEALING FOR OPERATING PRESSURES INDICATED.
<br />2.5 FLEXIBLE DUCTS:
<br />A. MANUFACTURERS:
<br />1. GENFLEX, 2. THERMAFLEX, 3. THERMOLD, 4. WIREMOLD, 5. HART & COOLEY
<br />B. BASIS OF DESIGN: THERMAFLEX, MODEL G-KM.
<br />C. U.L. 181 CLASS 1 FLEXIBLE AIR DUCT COMPLYING WITH NFPA STANDARD 9OA; FACTORY
<br />FABRICATED ASSEMBLY COMPOSED OF AN INNER LINER, COATED WOUND SPRING STEEL WIRE, 1
<br />INCH THICK FIBERGLASS INSULATION (INSTALLED R-VALUE 4.3) AND A VAPOR BARRIER OUTER
<br />JACKET.
<br />2.6 HANGERS AND SUPPORTS
<br />A. HANGER MATERIALS: GALVANIZED SHEET STEEL OR THREADED STEEL ROD AT THE CONTRACTOR'S
<br />OPTION, WITH THE FOLLOWING LIMITATIONS:
<br />1. HANGERS EXPOSED IN FINISHED AREAS: USE THREADED ROD.
<br />2. STRAP AND ROD SIZES: COMPLY WITH SMACNA'S "HVAC DUCT CONSTRUCTION
<br />STANDARDS --METAL AND FLEXIBLE" FOR STEEL SHEET WIDTH AND THICKNESS AND FOR
<br />STEEL ROD DIAMETERS.
<br />B. DUCT ATTACHMENTS: SHEET METAL SCREWS, BLIND RIVETS OR SELF -TAPPING METAL SCREWS;
<br />COMPATIBLE WITH DUCT MATERIALS.
<br />PART 3 EXECUTION
<br />3.1 DUCT APPLICATIONS
<br />A. STATIC -PRESSURE CLASSES: UNLESS OTHERWISE INDICATED, CONSTRUCT DUCTS ACCORDING TO
<br />THE FOLLOWING. MEDIUM VELOCITY DUCTS SHALL INCLUDE ALL SUPPLY DUCTWORK BETWEEN
<br />FANS AND VAV BOXES. MEDIUM VELOCITY DUCTWORK SHALL ALSO INCLUDE EXHAUST SYSTEMS
<br />SYSTEMS WITH VELOCITIES IN EXCESS OF 1,800 FPM.
<br />1. LOW VELOCITY DUCTS: 2-INCH WG OR 1.5 TIMES THE LISTED EXTERNAL PRESSURE OF THE
<br />FAN SERVING THE DUCT SYSTEM, WHICHEVER IS HIGHER.
<br />2. MEDIUM VELOCITY DUCTS: 6-INCH WG OR 1.5 TIMES THE LISTED EXTERNAL PRESSURE OF
<br />THE FAN SERVING THE DUCT SYSTEM, WHICHEVER IS HIGHER.
<br />3.2 DUCT INSTALLATION
<br />A. CONSTRUCT AND INSTALL DUCTS ACCORDING TO SMACNA'S "HVAC DUCT CONSTRUCTION
<br />STANDARDS -METAL AND FLEXIBLE," UNLESS OTHERWISE INDICATED.
<br />B. INSTALL DUCTS, UNLESS OTHERWISE INDICATED, VERTICALLY AND HORIZONTALLY AND PARALLEL
<br />AND PERPENDICULAR TO BUILDING LINES; AVOID DIAGONAL RUNS.
<br />C. COORDINATE LAYOUT WITH SUSPENDED CEILING, FIRE- AND SMOKE -CONTROL DAMPERS, LIGHTING
<br />LAYOUTS AND SIMILAR FINISHED WORK.
<br />D. FIRE -RATED PARTITION PENETRATIONS: WHERE DUCTS PASS THROUGH INTERIOR PARTITIONS AND
<br />EXTERIOR WALLS, INSTALL APPROPRIATELY RATED FIRE OR FIRE/SMOKE DAMPERS, SLEEVES AND
<br />FIRESTOPPING SEALANT.
<br />E. INSTALL DUCTS WITH HANGERS AND BRACES DESIGNED TO WITHSTAND, WITHOUT DAMAGE TO
<br />EQUIPMENT, SEISMIC FORCE REQUIRED BY APPLICABLE BUILDING CODES. REFER TO SMACNA'S
<br />"SEISMIC RESTRAINT MANUAL: GUIDELINES FOR MECHANICAL SYSTEMS."
<br />3.3 SEAM AND JOINT SEALING
<br />A. SEAL DUCT SEAMS AND JOINTS ACCORDING TO SMACNA'S "HVAC DUCT CONSTRUCTION
<br />STANDARDS --METAL AND FLEXIBLE" FOR DUCT PRESSURE CLASS INDICATED.
<br />1. FOR PRESSURE CLASSES LOWER THAN 2-INCH WG, SEAL TRANSVERSE JOINTS.
<br />SECTION 233300 - DUCT ACCFSSCRIFS
<br />PART 1 GENERAL
<br />1.1 SUBMITTALS
<br />A. GENERAL
<br />1. PRODUCT DATA FOR SPECIFIED MATERIALS.
<br />PART 2 PRODUCTS
<br />2.1 BACKDRAFT DAMPERS
<br />A. MANUFACTURERS
<br />1. AIR CONTROL PRODUCTS, 2. AMERICAN WARMING AND VENTILATION, 3. GREENHECK, 4.
<br />POTTORFF, 5. RUSKIN.
<br />B. DESCRIPTION: MULTIPLE -BLADE; PARALLEL ACTION; GRAVITY BALANCED; CENTER -PIVOTED BLADES
<br />OF MAXIMUM 6-INCH WIDTH; SEALED EDGES; ASSEMBLED IN RATTLE -FREE MANNER WITH
<br />90-DEGREE STOP; STEEL BALL BEARINGS AND AXLES; ADJUSTMENT DEVICE TO PERMIT SETTING
<br />FOR VARYING DIFFERENTIAL STATIC PRESSURE.
<br />PART 1 GENERAL
<br />1.1 SUBMITTALS
<br />A. GENERAL
<br />1. PRODUCT DATA FOR SPECIFIED MATERIALS.
<br />PART 2 PRODUCTS
<br />2A BACKDRAFT DAMPERS
<br />A. MANUFACTURERS
<br />1. AIR CONTROL PRODUCTS, 2. AMERICAN WARMING AND VENTILATION, 3, GREENHECK, 4.
<br />POTTORFF, 5. RUSKIN.
<br />B. DESCRIPTION: MULTIPLE -BLADE; PARALLEL ACTION; GRAVITY BALANCED; CENTER -PIVOTED
<br />BLADES OF MAXIMUM 6-INCH WIDTH; SEALED EDGES; ASSEMBLED IN RATTLE -FREE MANNER
<br />WITH 90-DEGREE STOP; STEEL BALL BEARINGS AND AXLES; ADJUSTMENT DEVICE TO PERMIT
<br />SETTING FOR VARYING DIFFERENTIAL STATIC PRESSURE.
<br />2.2
<br />DUCT -MOUNTING ACCESS DOORS
<br />A.
<br />MANUFACTURERS
<br />1. CESCO PRODUCTS, 2. DUCTMATE INDUSTRIES,
<br />INC., 3. GREENHECK,
<br />4. MCGILL AIRFLOW
<br />CORPORATION, 5. NAILOR INDUSTRIES
<br />INC.
<br />B.
<br />GENERAL DESCRIPTION: FABRICATE DOORS
<br />AIRTIGHT AND SUITABLE FOR
<br />DUCT PRESSURE
<br />CLASS.
<br />C.
<br />STANDARD ACCESS DOOR: DOUBLE WALL;
<br />DUCT MOUNTING; FABRICATED
<br />OF GALVANIZED
<br />SHEET METAL WITH INSULATION FILL AND
<br />THICKNESS AS INDICATED FOR
<br />DUCT PRESSURE
<br />CLASS.
<br />2.3 FLEXIBLE CONNECTORS
<br />A. MANUFACTURERS
<br />1. AMERICAN WARMING AND VENTILATING, 2. CESCO PRODUCTS, 3. DUCTMATE INDUSTRIES,
<br />INC., 4. GREENHECK, 5. MCGILL AIRFLOW CORPORATION, 6. NAILOR INDUSTRIES INC., 7.
<br />POTTORFF, 8. VENTFABRICS, INC.
<br />B. GENERAL DESCRIPTION: FLAME-RETARDANT OR NONCOMBUSTIBLE FABRICS, COATINGS AND
<br />ADHESIVES COMPLYING WITH UL 181, CLASS 1.
<br />2.4 TURNING VANES
<br />A. MANUFACTURERS
<br />1. AMERICAN WARMING AND VENTILATING, 2. CESCO PRODUCTS, 3. DUCTMATE INDUSTRIES,
<br />INC., 4. ELMDOR, 5. GREENHECK, 6, MCGILL AIRFLOW CORPORATION, 7. NAILOR
<br />INDUSTRIES INC., 8. POTCRFF, 9. UNITED MCGILL., 10. VENTFABRICS, INC.
<br />2.5 VOLUME BALANCING DAMPERS
<br />A. MANUFACTURERS
<br />1. AMERICAN WARMING AND VENTILATION, 2. GREENHECK, 3. POTTORFF, 4. RUSKIN, 5.
<br />DURODYNE.
<br />B. GENERAL DESCRIPTION: FACTORY FABRICATED WITH REQUIRED HARDWARE AND ACCESSORIES;
<br />DAMPER BLADES STIFFENED FOR STABILITY; LOCKING DEVICE TO HOLD SINGLE -BLADE
<br />DAMPERS IN A FIXED POSITION WITHOUT VIBRATION; DUCT PENETRATIONS FOR DAMPER
<br />COMPONENTS SEALED CONSISTENT WITH PRESSURE CLASS.
<br />PART 3 EXECUTION
<br />3.1 GENERAL
<br />A. INSTALL DUCT ACCESSORIES ACCORDING TO APPLICABLE DETAILS IN SMACNA'S "HVAC DUCT
<br />CONSTRUCTION STANDARDS --METAL AND FLEXIBLE".
<br />3.2 ACCESS DOORS
<br />A. APPLICATION
<br />1. PROVIDE ACCESS DOORS (IN BUILDING WALLS, CEILINGS, ETC.) AS REQUIRED TO ACCESS
<br />ALL SYSTEM COMPONENTS THAT REQUIRE MAINTENANCE.
<br />3.3 DUCT -MOUNTING ACCESS DOORS
<br />A. GENERAL
<br />1. LABEL ACCESS DOORS ACCORDING TO DIVISION 23 SECTION "HVAC IDENTIFICATION."
<br />B. APPLICATION
<br />1. STANDARD ACCESS DOOR.
<br />a. PROVIDE WHERE REQUIRED FOR TESTING AND BALANCING PURPOSES.
<br />b. PROVIDE WHERE REQUIRED TO PROVIDE ACCESS TO ALL SYSTEM
<br />COMPONENTS THAT REQUIRE MAINTENANCE.
<br />3.4 FLEXIBLE CONNECTORS
<br />A. INSTALL FLEXIBLE CONNECTORS IMMEDIATELY ADJACENT TO EQUIPMENT IN DUCTS ASSOCIATED
<br />WITH FANS AND MOTORIZED EQUIPMENT SUPPORTED BY VIBRATION ISOLATORS.
<br />3.5 FLEXIBLE DUCTS
<br />A. CONNECT DIFFUSERS OR LIGHT TROFFER BOOTS TO LOW PRESSURE DUCTS DIRECTLY OR
<br />WITH MAXIMUM 60-INCH (1500-MM) LENGTHS OF FLEXIBLE DUCT CLAMPED OR STRAPPED IN
<br />PLACE. DO NOT USE FLEXIBLE DUCTS TO CREATE BENDS GREATER THAN 45'.
<br />3.6 TURNING VANES
<br />A. APPLICATION
<br />1. PROVIDE TURNING VANES IN ALL ELBOWS THAT ARE NOT RADIUSED FOR ALL DUCT
<br />SYSTEMS. USE SINGLE VANE CONSTRUCTION FOR LOW VELOCITY SYSTEMS AND DOUBLE
<br />VANE CONSTRUCTION FOR MEDIUM VELOCITY SYSTEMS.
<br />3.7 VOLUME BALANCING DAMPERS
<br />A. INSTALLATION
<br />1. WHERE DAMPERS ARE INSTALLED ABOVE INACCESSIBLE CEILINGS, PROVIDE CONCEALED
<br />DAMPER REGULATOR AND COVER PLATE.
<br />B. APPLICATION
<br />1. PROVIDE FOR EACH GRID IN THE DUCTWORK SERVING THAT GRID, WHETHER INDICATED ON
<br />THE DRAWINGS OR NOT. OPTIONAL REGISTER DAMPERS PROVIDED AS AN ACCESSORY TO
<br />GRD'S ARE NOT AN ACCEPTABLE ALTERNATIVE, UNLESS SUCH ACCESSORY DAMPERS ARE
<br />SCHEDULED ON THE DRAWINGS AND SUPPLEMENTARY BALANCING DAMPERS ARE NOT
<br />SHOWN ON THE FLOOR PLAN DRAWINGS. USE STANDARD VOLUME DAMPERS UNLESS
<br />NOTED TO BE LOW LEAKAGE VOLUME DAMPERS.
<br />SECTION 233710 - GRILLES, REGISTERS AND DIFFUSERS
<br />PART 1 GENERAL
<br />1.1 SUBMITTALS
<br />B. GENERAL
<br />1. PRODUCT DATA: FOR EACH PRODUCT INDICATED, INCLUDE THE FOLLOWING:
<br />a. DATA SHEET: INDICATE MATERIALS OF CONSTRUCTION, FINISH, AND MOUNTING
<br />DETAILS; AND PERFORMANCE DATA INCLUDING THROW AND DROP, STATIC -PRESSURE
<br />DROP AND NOISE RATINGS.
<br />PART 2 PRODUCTS
<br />2.1 GENERAL
<br />A. DAMPERS: PROVIDED AS AN ACCESSORY TO GRD'S WHEN SCHEDULED ON THE DRAWINGS.
<br />DAMPERS SHALL BE OPPOSED BLADE, HEAVY GAUGE STEEL AND SHALL BE ADJUSTABLE
<br />FROM THE FACE OF THE INLET OR OUTLET.
<br />B. FRAME TYPES AND MOUNTING HARDWARE: COORDINATED WITH CEILING TYPES.
<br />ARCHITECTURAL PLANS SHALL TAKE PRECEDENCE WHEN REFERENCING CEILING TYPES,
<br />AND CONTRACTOR SHALL REFERENCE THE ARCHITECTURAL PLANS FOR VERIFICATION OF
<br />CEILING TYPE PRIOR TO ORDERING.
<br />2.2 GENERAL GRILLES, REGISTERS AND DIFFUSERS
<br />A. MANUFACTURERS
<br />1. ANEMOSTAT, 2. KRUEGER. 3. POTTORFF, 4. PRICE, 5. TITUS, 6. TUTTLE & BAILEY.
<br />B. RETURN/EXHAUST GRILLES: STEEL, ALUMINUM, OR STAINLESS STEEL CONSTRUCTION AS
<br />SCHEDULED ON THE DRAWINGS; 1 1/4 INCH (32 MM) BORDER WITH FULLY WELDED
<br />CORNERS; FIXED BLADES PARALLEL TO THE LONG DIMENSION WITH SPACING AND
<br />DEFLECTION AS SCHEDULED ON THE DRAWINGS; COUNTERSUNK SCREW MOUNTING HOLES
<br />FOR SURFACE MOUNT; NO MOUNTING HOLES FOR LAY -IN MOUNT.
<br />BASIS OF DESIGN: TITUS 350/355 SERIES.
<br />C. MODULAR CORE CEILING DIFFUSERS: STEEL OR ALUMINUM CONSTRUCTION; MINIMUM 1
<br />INCH (25 MM) DEPTH FOR DUCT CONNECTION; 4 FIXED LOUVER DIRECTIONAL MODULES,
<br />INDIVIDUALLY REMOVABLE AND ADJUSTABLE WITHOUT TOOLS.
<br />1. BASIS OF DESIGN: TITUS MCD SERIES.
<br />2.3 LINEAR SLOT CEILING DIFFUSERS
<br />A. MANUFACTURERS
<br />1. PRICE, 2. TITUS, 3. TUTTLE & BAILEY.
<br />B. SLOT SUPPLY DIFFUSERS: HEAVY GAUGE EXTRUDED ALUMINUM FRAME AND SUPPORT
<br />BARS; AERODYNAMICALLY CURVED 'ICE TONG' SHAPED PATTERN CONTROLLERS FOR 180
<br />DEGREE AIR PATTERN CONTROL AND DAMPERING; CENTER T-BARS.
<br />C. SLOT RETURN GRILLES: SAME AS SUPPLY DIFFUSERS, BUT WITH PATTERN CONTROLLER
<br />OMITTED. PROVIDE WITH LIGHT SHIELD IN PLENUM RETURN APPLICATIONS.
<br />D. BASIS OF DESIGN
<br />1. STANDARD T-BAR APPLICATIONS: TITUS TBD-30 SERIES.
<br />2. NARROW T-BAR APPLICATIONS: TITUS ML SERIES WITH MP SERIES PLENUM.
<br />3. SURFACE MOUNT APPLICATIONS: TITUS ML SERIES WITH MP SERIES PLENUM.
<br />PART 3 EXECUTION
<br />3.1 GENERAL
<br />A. INSTALLATION
<br />1. CHECK LOCATIONS AND MAKE NECESSARY ADJUSTMENTS IN POSITION TO CONFORM
<br />WITH ARCHITECTURAL FEATURES, SYMMETRY AND LIGHTING ARRANGEMENT. LOCATE IN
<br />ACCORDANCE WITH ARCHITECTURAL REFLECTED CEILING PLAN WHEN INDICATED.
<br />2. CEILING -MOUNTED OUTLETS AND INLETS: DRAWINGS INDICATE GENERAL ARRANGEMENT
<br />OF DUCTS, FITTINGS, AND ACCESSORIES. AIR OUTLET AND INLET LOCATIONS HAVE
<br />BEEN INDICATED TO ACHIEVE DESIGN REQUIREMENTS FOR AIR VOLUME, NOISE
<br />CRITERIA, AIRFLOW PATTERN, THROW AND PRESSURE DROP. MAKE FINAL LOCATIONS
<br />WHERE INDICATED, AS MUCH AS PRACTICABLE. FOR UNITS INSTALLED IN LAY -IN
<br />CEILING PANELS, LOCATE UNITS IN THE CENTER OF PANEL. WHERE ARCHITECTURAL
<br />FEATURES OR OTHER ITEMS CONFLICT WITH INSTALLATION, NOTIFY ARCHITECT FOR A
<br />DETERMINATION OF FINAL LOCATION.
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<br />(206) 667-0555
<br />Copyright Reserved
<br />The Contractor shall verify and be responsible for all dimensions. DO
<br />NOT scale the drawing -any errors or omissions shall be reported to
<br />Stantec without delay.
<br />The Copyrights to all designs and drawings are the property of
<br />Stantec. Reproduction or use for any purpose o [her than that
<br />authorized by Stantec is forbidden.
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