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<br />03-19-2024
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<br />PROFESSIONAL SEAL
<br />Dr. Al Gonzalez P.E.
<br />DOTec Engineering
<br />424 Jefferson Street
<br />St. Charles, MO 63301
<br />Ph 636-724-9872
<br />Fx 636-724-9032
<br />WWW.DOTECENGINEERING.COM
<br />ALG@DOTECENGINEERING.COM
<br />SHEET NUMBER:
<br />M0.0
<br />PROJECT NUMBER:
<br />DRAWN BY:
<br />CHECKED BY:
<br />FOR CONSTRUCTION
<br />ALG
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<br />DATE:
<br />SHEET NAME:
<br />MECHANICAL NOTES
<br />THIS DRAWING IS PRELIMINARY
<br />UNTIL SIGNED AND SEALED BY
<br />THE LICENSED PROFESSIONAL
<br />NOTED BELOW.
<br />THE PROFESSIONAL ENGINEER WAIVES ANY AND ALL RESPONSIBILITY
<br />AND LIABILITY FOR PROBLEMS WHICH ARISE FROM FAILURE TO
<br />FOLLOW THESE PLANS, SPECIFICATIONS AND DESIGN INTENT THEY
<br />CONVEY, OR FOR PROBLEMS WHICH ARISE FROM OTHER'S FAILURE
<br />TO OBTAIN AND OR/ FOLLOW THE PROFESSIONAL ENGINEER
<br />GUIDANCE WITH RESPECT TO ANY ERRORS, OMISSIONS,
<br />INCONSISTENCIES, AMBIGUITIES, OR CONFLICTS WHICH ARE
<br />ALLEGED. BUILDINGS TO BE CONSTRUCTED IN FULL CONFORMANCE
<br />WITH ALL APPLICABLE CODES AND RESTRICTIONS. PROFESSIONAL
<br />ENGINEER TO BE NOTIFIED PRIOR TO CONSTRUCTION IN THE EVENT
<br />OF CODE REVISION OR CHANGES.
<br />#
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<br />GENERAL
<br />1.MECHANICAL SYSTEMS SHALL BE INSTALLED IN
<br />ACCORDANCE WITH ALL APPLICABLE BUILDING CODES.
<br />2.DRAWINGS FOR MECHANICAL WORK ARE DIAGRAMMATIC,
<br />SHOWING THE GENERAL LOCATION, TYPE, LAYOUT AND
<br />EQUIPMENT REQUIRED. THE DRAWINGS SHALL NOT BE
<br />SCALED FOR EXACT MEASUREMENTS. REFER TO
<br />MANUFACTURERS STANDARD INSTALLATION DRAWINGS
<br />FOR EQUIPMENT CONNECTIONS AND INSTALLATION
<br />REQUIREMENTS AS REQUIRED. FURNISH AND INSTALL
<br />DUCTWORK, CONNECTIONS, ACCESSORIES, OFFSETS AND
<br />MATERIALS NECESSARY TO FACILITATE THE SYSTEMS
<br />FUNCTIONING AS INDICATED BY THE DESIGN AND THE
<br />EQUIPMENT INDICATED. THE WORK SHALL BE IN
<br />ACCORDANCE WITH LOCAL CODES AND ORDINANCES AND
<br />SUBJECT TO INSPECTION.
<br />3.THE MECHANICAL SYSTEMS SHALL BE COMPLETE WITH
<br />ALL NECESSARY APPURTENANCES FOR A COMPLETE
<br />OPERATING SYSTEM.
<br />4.THE CONTRACTOR SHALL WARRANTEE ALL MATERIALS
<br />AND GUARANTEE ALL WORKMANSHIP FOR ONE YEAR
<br />FROM SUBSTANTIAL COMPLETION.
<br />BASIC MATERIALS AND METHODS
<br />1.MATERIALS SHALL BEAR UNDERWRITERS LABEL WHERE
<br />SUCH STANDARDS HAVE BEEN ESTABLISHED AND LISTED
<br />BY UNDERWRITER'S LABORATORIES, INC. MATERIALS,
<br />EQUIPMENT AND APPLIANCES SHALL CONFORM TO THE
<br />LATEST STANDARDS OF:
<br />AMCA - AIR MOVING AND CONDITIONING ASSOCIATIONS,
<br />INC.
<br />SMACNA - SHEET METAL AND AIR CONDITIONING
<br />CONTRACTOR NATIONAL ASSOCIATION, INC.
<br />ASHRAE - AMERICAN SOCIETY OF HEATING,
<br />REFRIGERATION AND AIR CONDITIONING ENGINEERS
<br />ASME - AMERICAN SOCIETY OF MECHANICAL ENGINEERS
<br />ASTM - AMERICAN SOCIETY FOR TESTING MATERIALS
<br />NEMA - NATIONAL ELECTRICAL MANUFACTURER'S
<br />ASSOCIATION
<br />ARI - AIR CONDITIONING AND REFRIGERATION INSTITUTE
<br />ANSI - AMERICAN NATIONAL STANDARDS INSTITUTE
<br />COORDINATION
<br />1.COORDINATE WITH GENERAL CONTRACTOR FOR
<br />ALLOWABLE DAYS OF THE WEEK AND TIMES OF DAY FOR
<br />SYSTEMS SHUT DOWNS AS REQUIRED FOR THE
<br />CONSTRUCTION WORK.
<br />2.THE MECHANICAL CONTRACTOR SHALL COORDINATE
<br />DUCTWORK INSTALLATION WITH ARCHITECTS, OWNERS
<br />REPRESENTATIVE IN FIELD AND OTHER TRADES.
<br />3.THE MECHANICAL CONTRACTOR SHALL COORDINATE
<br />VOLTAGE OF ALL EQUIPMENT WITH ELECTRICAL PRIOR TO
<br />ORDERING EQUIPMENT.
<br />INSTALLATION
<br />1.CORE-DRILL OR SAW-CUT FLOOR, WALL, ROOF, ETC. AS
<br />REQUIRED FOR PIPING OR DUCTWORK AND FIRE-STOP
<br />OPENING AROUND PIPE OR DUCTWORK. VERIFY LOCATION
<br />OF STRUCTURAL BEAMS, JOISTS, ETC. BEFORE DRILLING
<br />OR CUTTING. NOTIFY ARCHITECT OF ANY DISCREPANCIES.
<br />2.WHEREVER FOUNDATION WALLS, OUTSIDE WALLS, ROOFS,
<br />ETC. ARE CUT FOR INSTALLATION OF SYSTEMS, THEY
<br />SHALL BE PATCHED TO MATCH EXISTING CONSTRUCTION
<br />AND SEALED WEATHER-TIGHT. WORK SHALL BE
<br />PERFORMED BY CRAFTSMEN SKILLED IN THEIR
<br />RESPECTIVE TRADES.
<br />3.ALL DUCTWORK AND PIPING SHALL BE ROUTED ABOVE
<br />THE SUSPENDED CEILING SPACE, UNLESS OTHERWISE
<br />NOTED ON PLANS.
<br />4.ALL DUCTWORK AND PIPING THAT IS EXPOSED TO VIEW
<br />SHALL BE ROUTED AS HIGH AS POSSIBLE AND TIGHT TO
<br />THE UNDERSIDE OF THE STRUCTURAL STEEL ABOVE.
<br />5.ALL ROOF PENETRATIONS EXCEEDING 12" X 12" IN SIZE
<br />SHALL BE FURNISHED WITH BURGLAR BARS.
<br />6.ALL OUTSIDE AIR INTAKES SHALL BE A MINIMUM OF 10'-0"
<br />AWAY FROM EXHAUST DISCHARGE OPENINGS AND
<br />PLUMBING VENT STACKS OR AS REQUIRED BY LOCAL
<br />CODES.
<br />7.NO FLEXIBLE DUCTWORK SHALL BE USED WITH THE
<br />EXCEPTION OF DETAIL ON SHEET M4. MAXIMUM FLEXIBLE
<br />DUCT LENGTH OF 5 FEET.
<br />INSULATION
<br />1.ALL SUPPLY, RETURN AND OUTSIDE AIR
<br />RECTANGULAR/ROUND DUCTWORK SHALL BE INSULATED
<br />WITH DUCT WRAP INSULATION
<br />EQUIPMENT
<br />1.THE MECHANICAL CONTRACTOR SHALL INSTALL
<br />MECHANICAL SYSTEMS AS SHOWN, NOTED AND
<br />SPECIFIED. EQUIPMENT MAY NOT BE SUBSTITUTED
<br />UNLESS WRITTEN APPROVAL BY THE ARCHITECT,
<br />ENGINEER OR OWNER'S REPRESENTATIVE IS OBTAINED.
<br />ANY CHANGES TO THE DUCTWORK LAYOUT WILL
<br />NECESSITATE SUBMISSION OF SHEET METAL SHOP
<br />DRAWINGS FOR ENGINEER'S REVIEW. ANY UNAUTHORIZED
<br />CHANGES WILL BE REMOVED AT CONTRACTOR'S
<br />EXPENSE, IF DEEMED NECESSARY BY ARCHITECT,
<br />ENGINEER, OR OWNER'S REPRESENTATIVE.
<br />2.UPON SELECTION OF THE MECHANICAL APPLIANCES,
<br />SUBMIT THE MANUFACTURER'S INSTALLATION
<br />INSTRUCTIONS TO THE BUILDING DEPARTMENT,
<br />INCLUDING LISTING FOR OUTSIDE INSTALLATION WHERE
<br />APPLICABLE.
<br />AIR DISTRIBUTION
<br />1.ALL DUCTWORK SHALL BE CONSTRUCTED OF GALVANIZED
<br />IRON SHEET METAL AND FABRICATED ACCORDING TO THE
<br />SMACNA LOW VELOCITY DUCT MANUAL, ASHRAE
<br />HANDBOOK VOLUME "HVAC SYSTEMS AND EQUIPMENT",
<br />AND TYPICAL DUCTWORK DETAILS SHOWN IN THESE
<br />DRAWINGS. ALL ELBOWS SHALL HAVE PROPER RADIUS,
<br />OR MECHANICAL CONTRACTOR SHALL PROVIDE DOUBLE
<br />THICKNESS AIRFOIL TURNING VANES REQUIRED BY
<br />SMACNA. NO SQUARE THROAT ELBOWS SHALL BE
<br />INSTALLED WITHOUT DOUBLE THICKNESS TURNING
<br />VANES. SIZES SHOWN ON PLAN ARE INSIDE FREE AREA.
<br />2.ALL FLEXIBLE DUCTWORK SHALL BE FACTORY
<br />ASSEMBLED CLASS 1 AIR DUCT (UL 181) WITH FIBERGLASS
<br />INSULATION AND REINFORCED OUTER PROTECTIVE
<br />COVER/VAPOR BARRIER. FLEX DUCT SHALL MEET NFPA
<br />90A WITH FLAME SPREAD UNDER 25, SMOKE DEVELOPED
<br />UNDER 50, AND SHALL BE RATED FOR 2" W.C. PRESSURE
<br />AND 0 TO 250 DEGREE TEMPERATURE. MAXIMUM
<br />STRETCHED OUT LENGTH SHALL BE AS PER CODES.
<br />3.PROVIDE UL APPROVED FIRE DAMPERS FOR ALL
<br />PENETRATIONS THROUGH FIRE RATED WALLS,
<br />PARTITIONS, CEILINGS, AND FLOORS. INSTALL FIRE
<br />DAMPERS AS PER MANUFACTURER'S DIRECTIONS AND
<br />PER UL GUIDELINES. PROVIDE ACCESS DOORS IN
<br />DUCTWORK AND ACCESS PANELS IN BUILDING
<br />CONSTRUCTION AS REQUIRED FOR SERVICING OF FIRE
<br />DAMPERS.
<br />4.ALL DUCT CONNECTIONS TO EQUIPMENT SHALL BE MADE
<br />WITH NEOPRENE, DOUBLE COATED, HEAVY GLASS FABRIC,
<br />VIBRATION ELIMINATION CONNECTIONS, (F.C.) FLEXIBLE
<br />CONNECTIONS, EQUAL TO VENTFABRICS, INC. TYPE
<br />VENTGLAS, UNLESS NOTED OTHERWISE.
<br />5.ALL DUCTWORK AND PLENUMS WITH PRESSURE CLASS
<br />RATINGS SHALL BE CONSTRUCTED TO SEAL CLASS A.
<br />JOINTS AND SEAMS OF DUCT SYSTEMS AND THEIR
<br />COMPONENTS SHALL NOT BE SEALED WITH CLOTH-BACK
<br />RUBBER ADHESIVE DUCT TAPES UNLESS SUCH TAPE IS
<br />USED IN COMBINATION WITH MASTIC AND DRAWBANDS.
<br />6.THE DUCT SYSTEM SHALL MEET THE DUCT LEAKAGE
<br />TESTING REQUIREMENTS OF CMC SECTION 603.9.2
<br />7.ALL BRANCH SUPPLY DUCTS SHALL HAVE (VD) MANUAL
<br />VOLUME DAMPERS INSTALLED FOR BALANCING.
<br />8.PROVIDE A VOLUME DAMPER FOR EVERY INLET AND
<br />OUTLET (DIFFUSERS, REGISTERS, GRILLES, ETC.) OF THE
<br />DUCTWORK DISTRIBUTION SYSTEMS WHETHER SHOWN
<br />OR NOT ON THE PLANS. PROVIDE ADDITIONAL VOLUME
<br />DAMPERS OR EXTRACTORS AT BRANCH TAKE-OFFS FROM
<br />DUCTWORK MAINS AS REQUIRED TO ACHIEVE AIR VOLUME
<br />DISTRIBUTION AND BALANCING.
<br />9.ALL DUCTWORK TRANSITIONS SHALL BE (FOT) "FLAT ON
<br />TOP", UNLESS OTHERWISE SPECIFIED ON PLAN.
<br />10.ALL CONTRACTOR FABRICATED AND MANUFACTURER
<br />FABRICATED COMPONENTS OF THE OUTSIDE AIR, SUPPLY
<br />AIR, RETURN AIR AND EXHAUST SYSTEMS SHALL BE
<br />CONSTRUCTED AND INSTALLED AIR-TIGHT. THE INSTALLED
<br />SYSTEMS SHALL BE PRESSURE TESTED AS SPECIFIED.
<br />PIPE OPENINGS IN SYSTEM COMPONENTS SHALL HAVE
<br />SHEET METAL BAFFLES, SET IN SEALANT, TO PREVENT
<br />LEAKAGE.
<br />AUTOMATIC TEMPERATURE CONTROLS
<br />1.CONTRACTOR SHALL FURNISH AND INSTALL ALL CONTROL
<br />WIRING AS REQUIRED. THERMOSTATS SHALL BE AS
<br />SPECIFIED OR AS FURNISHED WITH THE EQUIPMENT.
<br />PROVIDE TRANSFORMERS AS REQUIRED.
<br />SMOKE DETECTORS
<br />1.PROVIDE RETURN AIR SMOKE DETECTORS IN ALL AIR
<br />DISTRIBUTION SYSTEMS WITH A DESIGN CAPACITY
<br />GREATER THAN 2000 CFM. SMOKE DETECTOR SHALL BE
<br />INSTALLED UPSTREAM OF ANY FILTERS, EXHAUST AIR
<br />CONNECTIONS, OR OUTSIDE AIR CONNECTIONS.
<br />TESTING AND BALANCING
<br />1.BALANCING CONTRACTOR SHALL BALANCE SYSTEMS TO
<br />AIR QUANTITIES SHOWN ON PLAN. BALANCING
<br />CONTRACTOR SHALL USE DUCT MOUNTED MANUAL
<br />DAMPERS FOR AIR SYSTEM BALANCING. USE OF A
<br />TERMINAL DAMPER IS NOT ACCEPTABLE.
<br />2.TESTING AND BALANCING CONTRACTOR SHALL TEST ALL
<br />HVAC EQUIPMENT TO ENSURE PROPER OPERATION, TEST
<br />ALL CONTROLS TO ENSURE PROPER OPERATION,
<br />CALIBRATION AND ADJUSTMENT OF CONTROLS, AND TEST
<br />ECONOMIZERS TO ENSURE PROPER OPERATION.
<br />3.THE ARCHITECT AND/OR OWNER'S REPRESENTATIVE
<br />SHALL BE NOTIFIED 48 HOURS OR MORE PRIOR TO FINAL
<br />TESTING AND BALANCING WORK SO THAT THEY AND/OR
<br />THE ENGINEER MAY BE PRESENT TO OBSERVE THIS
<br />WORK. THE BALANCING CONTRACTOR SHALL SUBMIT
<br />WRITTEN REPORTS OF ALL AIR READINGS, STATIC
<br />PRESSURES, GPM RATES, PRESSURE READINGS,
<br />TEMPERATURE READINGS, MOTOR AMPERAGE, ETC., TO
<br />DOCUMENT PROPERLY OPERATING AND BALANCED
<br />MECHANICAL SYSTEMS IN ALL AREAS. A COPY OF THE
<br />TEST AND BALANCE REPORT SHALL BE SUBMITTED TO THE
<br />AUTHORITIES HAVING JURISDICTION PRIOR TO FINAL
<br />INSPECTION AND REQUESTING OCCUPANCY.
<br />CLOSEOUT DOCUMENTATION
<br />1.THE CONTRACTOR SHALL FURNISH TO THE BUILDING
<br />OWNER WITHIN 90 DAYS OF DATE OF RECEIPT OF THE
<br />CERTIFICATE OF OCCUPANCY THE FOLLOWING:
<br />A. OPERATING AND MAINTENANCE MANUAL. MANUAL
<br />SHALL CONSIST OF MANUFACTURER'S
<br />RECOMMENDATIONS, PROGRAMMING PROCEDURES
<br />AND DATA POINTS, NARRATIVE AND OTHER MEANS OF
<br />ILLUSTRATING TO THE OWNER HOW THE BUILDING,
<br />EQUIPMENT AND SYSTEMS ARE INTENDED TO BE
<br />INSTALLED, MAINTAINED AND OPERATED.
<br />B. AS-BUILT HVAC DRAWINGS.
<br />C. BALANCE REPORT OF HVAC SYSTEMS.
<br />MECHANICAL ABBREVIATIONS
<br />AFF ABOVE FINISHED FLOOR
<br />BLD'G BUILDING
<br />COL COLUMN
<br />DEG F DEGREES FAHRENHEIT
<br />DWG DRAWING
<br />EA EXHAUST AIR
<br />ETR EXISTING TO REMAIN
<br />FC FLEXIBLE CONNECTION
<br />FD FIRE DAMPER
<br />GC GENERAL CONTRACTOR
<br />MA MAKE-UP AIR
<br />MOD MOTOR OPERATED DAMPER
<br />MT'D MOUNTED
<br />MVD MANUAL VOLUME DAMPER
<br />NC NEW CONNECTION TO EXISTING
<br />NTS NOT TO SCALE
<br />OA OUTSIDE AIR
<br />OC ON CENTER
<br />RA RETURN AIR
<br />REF REFER OR REFERENCE
<br />REQ'D REQUIRED
<br />SA SUPPLY AIR
<br />TA TRANSFER AIR
<br />UCD UNDER CUT DOOR
<br />UNO UNLESS NOTED OTHERWISE
<br />W/ WITH
<br />Ø DIAMETER/ROUND
<br />SCOPE OF THE WORK
<br /> MECHANICAL PLANS TO BE GENERATED FROM
<br />MECHANICAL DRAWINGS AND INFORMATION PROVIDED BY
<br />AES & CLIENTS REQUIREMENTS ALONG WITH SPECS OF
<br />EQUIPMENT.
<br /> INCORPORATE THE INFORMATION REQUESTED ABOVE INTO
<br />MECHANICAL DRAWINGS AND PROVIDE SEALED DRAWINGS
<br />AND CALCULATIONS FOR PERMITTING.
<br />THE CONTRACTORS ARE REQUIRED TO VISIT THE SITE AND
<br />FULLY AQUAINT THEMSELVES WITH THE EXISTING CONDITIONS
<br />AND THE DIFFICULTIES INVOLVED IN ACCOMPLISHING THE NEW
<br />WORK. PROBLEMS, DISCREPANCIES OR INFORMATION NEEDED
<br />SHALL BE SUBMITTED TO THE ARCHITECT/ENGINEER IN
<br />WRITING PRIOR TO SUBMITTING A PROPOSAL. THE SUBMISSION
<br />OF PROPOSAL WILL INDICATE THAT THE CONTRACTOR HAS
<br />FULLY UNDERSTOOD AND HAS INCLUDED ALL COSTS FOR THIS
<br />PROJECT.
<br />MECHANICAL SYMBOLS
<br />MANUAL VOLUME DAMPER (MVD)
<br />T THERMOSTATIC CONTROL DEVICE
<br />SUPPLY AIR DIFFUSERS
<br />RETURN AND TRANSFER AIR GRILLES
<br />MODULE SIZE
<br />TAG NO.
<br />EXHAUST AIR GRILLE
<br />NECK SIZE
<br />TAG NO.
<br />CFM
<br />NECK SIZE
<br />TAG NO.
<br />CFM
<br />C CARBON DIOXIDE DETECTOR (SYSTEM BY OTHERS)
<br />09/30/2026
<br />01/20/2025
<br />3201 S Halladay St
<br />5/5/2025
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