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GENERAL NOTES SYMBOL LEGENDSYMBOLDESCRIPTIONABBREVIATIONSMECHANICAL SUMMARYMECHANICAL SYSTEMS, SERVICE SYSTEMS AND EQUIPMENTCODE2018 NC ENERGY CODE: PRESCRIPTIVE ___X___ PERFORMANCE _______ASHRAE 90.1-2013: PRESCRIPTIVE _______ PERFORMANCE _______ADDITIONAL PRESCRIPTIVE COMPLIANCE: N/A_____ 506.2.1 MORE EFFICIENT MECHANICAL EQUIPMENT_____ 506.2.2 REDUCED LIGHTING POWER DENSITY_____ 506.2.3 ENERGY RECOVERY VENTILATION SYSTEMS_____ 506.2.4 HIGHER EFFICIENCY SERVICE WATER HEATING_____ 506.2.5 ON-SITE SUPPLY OF RENEWABLE ENERGY_____ 506.2.6 AUTOMATIC DAYLIGHTING CONTROLS THERMAL ZONE: 4AWINTER DRY BULB: 20.0 DEGREES FSUMMER DRY BULB: 94.6 DEGREES FSUMMER WET BULB: 74.3 DEGREES FSUMMER HR/MCDB: 129.5 / 81.2 DEGREES FINTERIOR DESIGN CONDITIONSWINTER DRY BULB: 70 DEGREES FSUMMER DRY BULB: 75 DEGREES FRELATIVE HUMIDITY: 55 %BUILDING HEATING LOAD: EXISTINGBUILDING COOLING LOAD: EXISTING (LOAD IS POOL DEHUMIDIFICATION)MECHANICAL SPACING CONDITIONING SYSTEMUNITARYDESCRIPTION OF UNIT: REFER TO SCHEDULE ON DRAWINGSHEATING EFFICIENCY: REFER TO SCHEDULE ON DRAWINGSCOOLING EFFICIENCY: REFER TO SCHEDULE ON DRAWINGSSIZE CATEGORY OF UNIT: REFER TO SCHEDULE ON DRAWINGSBOILER: TOTAL BOILER OUTPUT. IF OVERSIZED, STATE REASON. EXISTINGCHILLER: TOTAL CHILLER CAPACITY. IF OVERSIZED, STATE REASON. EXISTINGREFER TO EQUIPMENT SCHEDULES FOR UNIT EFFICIENCIES.DESIGNER STATEMENT:TO THE BEST OF MY KNOWLEDGE AND BELIEF, THE DESIGN OF THIS BUILDING COMPLIES WITH THEMECHANICAL SYSTEMS, SERVICE SYSTEMS AND EQUIPMENT REQUIREMENTS OF THE NORTH CAROLINASTATE ENERGY CODESUPPLY DUCTRETURN DUCTBALANCING DAMPEROUTSIDE AIR INTAKEDUCT SMOKE DETECTORMOTORIZED DAMPER, PARALLEL BLADE FOR SHUT-OFF, OPPOSED BLADE FOR MODULATING, 24V ACTUATOR.R RC CT#TEMPERATURE SENSOR. LABEL INDICATES UNIT CONTROLLED.REFRIGERANT PIPINGCONDENSATE PIPING_ x __ x __ x _MDMANUAL BALANCING DAMPER, OPPOSED BLADE, DOUBLE FLANGED. PROVIDE FACTORY SLEEVE, AND MANUAL HAND QUADRANT WITH INSULATION EXTENSION. AIR PERFORMANCE TESTED IN ACCORDANCE WITH AMCA. LEAKAGE CLASS 1, 8 CFM/SF AT 4 in w.g.VDFIRE DAMPER. 1.5 HOUR FOR 1 HR AND 2HR CONSTRUCTION, 3 HOUR FOR 3 HR CONSTRUCTION. TYPE B WITH BLADES OUT OF AIR STREAM. UL 555 LISTED. PROVIDE FACTORY SLEEVE. PROVIDE MULTI-SECTION ASSEMBLY AS REQUIRED FOR DUCT DIMENSIONS. PROVIDE THIN-LINE MODEL OR OUT OF WALL MODEL WHERE APPROPRIATE.FDDPDIFFERENTIAL PRESSURE SENSOR.SDPOINT OF DISCONNECTION / DEMOLITIONPOINT OF CONNECTIONG G LOW PRESSURE NATURAL GAS PIPINGMPG MEDIUM NATURAL GAS PIPINGEPOE-STOP FOR BOILERSHHWS HOT WATER SUPPLYHHWRHOT WATER RETURNGLYGLYCOL PIPINGMECHANICAL ABBREVIATIONSACCU AIR COOLED CONDENSING UNITACU AIR CONDITIONING UNITAD ACCESS DOORAF AIR FILTERAFF ABOVE FINISHED FLOORAHU AIR HANDLING UNITALUM ALUMINUMAMP AMPEREAP ACCESS PANELARCH ARCHITECTURALAVG AVERAGECC AIR COLLED CONDENSERB BOILERB.I. BLACK IRONBB BASEBOARD RADIATIONBDD BACKDRAFT DAMPERBHP BRAKE HORSEPOWERBO BLANK OFFBTU BRITISH THERMAL UNITBTUH BRITISH THERMAL UNITS PER HOURCA COMPRESSED AIRCAP CAPACITYCAU COMPRESSED AIRCC COOLING COILCFM CUBIC FEET PER MINUTECH CHILLERCI CAST IRONCL CENTER LINECO CARBON MONOXIDECO CLEAN OUTCONC CONCRETECT COOLI NG TOWERCU CONDENSING UNITCUH CABINET UNIT HEATERCV CONSTANT VOLUMECY CYCLEDB DRY BULB TEMPERATUREDELF DEFLECTIONDIFF DIFFUSERDN DOWNDWG DRAWINGDX DIRECT EXPANSIONEA EACHEAT ENTERING AIR TEMPERATUREEF EXHAUST FANEFF EFFICIENCYEHC ELECTRIC HEAT COILESP EXTERNAL STATIC PRESSUREET EXPANSION TANKEUH ELECTRIC UNIT HEATEREWT ENTERING WATER TEMPERATUREEXH EXHAUSTF.D. FLOOR DRAINFA FREE AREAFCU FAN COIL UNITFD FIRE DAMPERFLEX FLEXIBLEFM FLOW METERFP FAN POWERED BOXFPM FEET PER MINUTEFT FEETFT2 SQUARE FEETFT3 CUBIC FEET°F DEGREES FARENHEITGA GAUGEGC GENERAL CONTRACTORGE GENERAL EXHAUSTGPM GALLONS PER MINUTEGR GRILLE*H ENTHAPLY DIFFERENCEHC HEATING COILHORIZ HORIZONTALHP HORSEPOWERHR HOURHU HUMIDIFIERHVAC HEATING VENTILATION & AIRCONDITIONINGHX HEAT EXCHANGERSHEET INDEX - MECHANICALSheetNumberSheet NameCurrentRevisionCurrentRevision DateM0.00 LEAD SHEETM0.01 DEMOLITION PLAN - AREA A.1M0.02 DEMOLITION PLAN - AREA A.2M1.01 DUCTWORK AND PIPING PLAN - AREA A.1M1.02 DUCTWORK AND PIPING PLAN - AREA A.2M5.01 DETAILSM6.01 POOL UNIT CONTROLSM7.01 MECHANICAL SCHEDULES1. THE CONTRACT DOCUMENTS ARE COMPLIMENTARY AND WHAT IS REQUIRED BY ONE SHALL BE AS BINDING AS IF REQUIRED BY ALL. IN THE CASE OF A CONFLICT, DISAGREEMENT, OR AMBIGUITY, PROVIDE THE BETTER QUALITY. IN THE CASE OF A CONFLICT, DISAGREEMENT, OR AMBIGUITY, PROVIDE THE GREATER QUANTITY OF WORK.2. COORDINATE ALL WORK WITH THAT OF THE OTHER DISCIPLINES PRIOR TO THE INSTALLATION OF ANY PIPING, DUCTWORK, OR EQUIPMENT.3. PERFORM A COMPLETE REVIEW OF THE CONTRACT DOCUMENTS PRIOR TO INSTALLATION OF THE MECHANICAL SYSTEMS AND REVIEW ANY CONFLICTS WITH THE ENGINEER. 4. DURING THE CONSTRUCTION PROCESS, PROTECT ALL EQUIPMENT, DEVICES, DUCTWORK, PIPING, AND APPURTENANCES FROM DIRT, DEBRIS, AND RAIN. STORE IN A COVERED LOCATION OFF OF THE FLOOR AND ABOVE STANDING WATER. ITEMS FOUND LYING IN STANDING WATER ON THE JOB SITE WILL NOT BE ACCEPTED FOR INSTALLATION.5. ENSURE THAT ITEMS TO BE FURNISHED OR PROVIDED WILL FIT IN THE SPACE AVAILABLE. MAKE NECESSARY FIELD MEASUREMENTS TO ASCERTAIN SPACE REQUIREMENTS, INCLUDING THOSE FOR CONNECTIONS, AND PROVIDE SUCH SIZES AND SHAPES OF EQUIPMENT THAT ARE THE TRUE INTENT AND MEANING OF THE CONTRACT DOCUMENTS. PROVIDE THE ENGINEER WITH SCALED COORDINATION DRAWINGS OF ALL MECHANICAL SPACES AND ABOVE CEILING INSTALLATIONS.6. LOCATE ALL EQUIPMENT TO PROVIDE MAXIMUM SPACE FOR MAINTENANCE AND SERVICE.7. PROVIDE ALL ELECTRICAL AND CONTROL CONNECTIONS TO THE EQUIPMENT PROVIDED. REFER TO THE ELECTRICAL DRAWINGS FOR LOCATIONS OF JUNCTION BOXES, DISCONNECTS, CIRCUIT BREAKERS (PANELBOARDS). TYPE, SIZE, AND NUMBER OF CONDUCTORS AND CONDUITS TO EQUIPMENT SHALL BE EQUIVALENT TO THE CONDUCTORS AND CONDUITS PROVIDED BY DIVISION 26. IN CASE OF MECHANICAL EQUIPMENT CONNECTION TO A CIRCUIT BREAKER, THE NUMBER AND SIZE OF THE CONDUCTORS AND CONDUITS SHALL CONFORM TO THE LATEST NATIONAL ELECTRICAL CODE REGULATIONS. ALL MOTOR STARTERS, SWITCHES, CONTROL DEVICES, ETC., PROVIDED BY DIVISION 23 SHALL BE RECESSED IN THE WALLS, EXCEPT WHEN THESE ITEMS ARE LOCATED IN MECHANICAL SPACES. PROVIDE A NAMEPLATE FOR ALL EQUIPMENT, SWITCHES, CONTROL DEVICES, ETC. REFER TO THE GENERAL PROVISIONS SECTION OF THE DIVISION 23 SPECIFICATIONS.8. PROVIDE ALL SUPPORT DEVICES NECESSARY FOR THE WORK. COORDINATE ALL LOCATIONS WITH OTHER DISCIPLINES PRIOR TO INSTALLATION.9. REFER TO THE ARCHITECTURAL DRAWINGS FOR FLOOR PLAN DIMENSIONS AND ELEVATIONS. DO NOT SCALE THESE DRAWINGS.10. PROVIDE ALL PENETRATIONS PERTAINING TO THE WORK THROUGH THE ROOF, WALLS, AND FLOORS. PROVIDE THE WATERPROOFING AROUND THE OPENINGS.11. COORDINATE THE SIZE AND LOCATION OF ALL PENETRATIONS THROUGH THE ROOF WITH DIVISION 07 AND OTHER DISCIPLINES.12. FIRE SEAL ALL FLOOR AND FIRE WALL PIPE AND CONDUIT PENETRATIONS WITH A UL APPROVED METHOD.13. PROVIDE ALL CUTTING AND PATCHING OF FLOORS AND WALLS FOR THE WORK UNLESS OTHERWISE INDICATED.14. ALL WALL AND FLOOR PENETRATIONS SHALL BE SEALED. SEAL ALL RATED FLOOR AND WALL PENETRATIONS WITH A UL APPROVED METHOD. FOR NON-RATE WALLS AND FLOORS, THE ANNULAR SPACE SHALL BE PACKED WITH MINERAL WOOL, OR ANOTHER SUITABLE NON-COMBUSTIBLE MATERIAL, AND CAULKED AIR RIGHT.15. CONDENSATE DRAINS SHALL BE A MINIMUM OF 1"∅COPPER, INSULATED WITH A 25/50 RATED CLOSED CELL RUBBER TUBING HAVING A NOMINAL WALL THICKNESS OF 1". PROVIDE A P-TRAP WITH VENT AND CLEANOUT PLUG AT THE UNIT. ALL CONDENSATE LINES SHALL BE ROUTED TO A FLOOR DRAIN OR AS INDICATED ON THE DRAWINGS.16. DUCT DIMENSIONS SHOWN ARE INSIDE CLEAR UNLESS OTHERWISE INDICATED. 17. PROVIDE FLEXIBLE DUCT CONNECTORS AT SUPPLY, RETURN, AND EXHAUST DUCTWORK CONNECTIONS TO ALL AIR HANDLING UNITS AND FANS.18. PROVIDE SHEET METAL COLLAR AT ALL LOCATIONS WHERE DUCTS PENETRATE WALLS. COLLARS SHALL BE OF A GAGE EQUIVALENT TO THE DUCTWORK.19. PROVIDE FIRE DAMPERS AT DUCT PENETRATIONS THROUGH THE FIRE RATED PARTITIONS, BARRIERS, AND WALLS AS INDICATED ON THE DRAWINGS. INSTALL PER MANUFACTURER'S INSTRUCTIONS. PENETRATIONS THROUGH FIRE RATED WALLS OF 3 HOURS OR MORE SHALL BE PROTECTED BY A LISTED FIRE DOOR, SATISFACTORY FOR CLASS A OPENINGS, ON BOTH SIDES OF THE WALL.20. ALL ACCESS DOORS IN THE DUCTWORK SHALL BE LOCATED TO EASILY ACCESS FIRE DAMPERS. COORDINATE CEILING ACCESS PANEL LOCATIONS WITH ALL OTHER DISCIPLINES. ALL ACCESS DOORS IN DUCTWORK FOR FIRE DAMPERS, DUCT-MOUNTED COILS, CONTROL DAMPERS, HUMIDIFIERS, DUCT SMOKE DETECTORS, AND OTHER DEVICES SHALL CONFORM TO THE FOLLOWING SCHEDULE:DUCT WIDTH ACCESS DOOR SIZEUP TO 17" WIDE 16"x12" (OR AS LARGE AS POSSIBLE)18" TO 22" 16"x16"22" AND LARGER 18"x18"21. PROVIDE BALANCING DAMPERS IN ALL LOW PRESSURE DUCTS FOR SYSTEM BALANCING.22. PROVIDE ADJUSTABLE CONTROL DEFLECTION DEVICES AT ALL BRANCH DUCT TAKE-OFFS.23. ALL ELBOWS IN DUCTWORK SHALL BE 1-1/2W RADIUS ELBOWS, UNLESS INDICATED OTHERWISE. WHERE RECTANGULAR ELBOWS ARE INDICATED, INSTALL DOUBLE WIDTH TURNING VANES.24. WHERE INDICATED, INSTALL SMOKE DETECTORS (FURNISHED AND WIRED BY DIVISION 26) IN THE RETURN AIR DUCT OF EACH AIR HANDLING UNIT.25. INSTALL THERMOSTATS, SENSORS, AND OTHER CONTROLS 48" ABOVE FINISHED FLOOR OR AS INDICATED ON THE DRAWINGS. COORDINATE WITH OTHER DISCIPLINES TO ALIGN EXACTLY WITH ADJACENT DEVICES SUCH AS LIGHT SWITCHES AND CONTROLS.26. PROVIDE ALL THERMOSTATS, SENSORS, CONTROLS, WIRING, AND CONDUIT.27. WHERE DUCTWORK CONNECTS TO EXTERIOR LOUVERS, PRIME AND PAINT DUCTWORK BLACK TO PREVENT DUCTWORK FROM BEING VISIBLE THROUGH THE LOUVER.28. ALL DUCT LAYOUT AND LOCATIONS INDICATED ARE DIAGRAMMATIC. VISIT THE SITE, BECOME FAMILIAR WITH THE EXISTING CONDITIONS, AND COORDINATE THE DUCT LAYOUT WITH ALL DISCIPLINES PRIOR TO INSTALLATION.29. SUPPORT ALL DUCTWORK, PIPING, EQUIPMENT, AND APPURTENANCES FROM THE BUILDING STRUCTURE AND NOT THE ROOF DECK.30. ALL HANGER RODS SHALL BE CUT TO WITHIN 1" OF THE BOTTOM NUT. IN MECHANICAL ROOMS, ALL HANGERS OR OTHER EQUIPMENT BELOW 7'-4" SHALL BE WRAPPED WITH FOAM INSULATION FOR PERSONNEL PROTECTION.31. INSULATE ALL SUPPLY DIFFUSERS AND DUCTED RETURN DIFFUSERS WITH 2" - 1# R.6 DUCT WRAP. CUT DIFFUSERS SO THERE IS A FOLDED 2" LAP ON ALL FOUR SIDES. TAPE WITH FSK TAPE WHERE INSULATED FLEX MEETS DUCT INSULATION, AND SO THERE ARE NO RAW EDGES OF FIBERGLASS.32. EQUIPMENT SHALL MEET OR EXCEED ALL REQUIREMENTS IN THE 2013 VERSION OF ASHRAE STANDARD 90.1 AND THE INTERNATIONAL ENERGY CONSERVATION CODE WITH NORTH CAROLINA AMENDMENTS.33. COORDINATE THE ROUGH-IN OF HYDRONIC PIPING WITH THE GENERAL CONTRACTOR AND OTHER TRADES. 34. ALL HYDRONIC PIPING SHALL BE PERMANENTLY IDENTIFIED BY CONTENT, FUNCTION, AND DIRECTION OF FLOW (I.E., HOT WATER SUPPLY →). ALL IDENTIFICATION MARKERS SHALL BE PERMANENTLY STENCILED ON THE PIPING IN A LEGIBLE MANNER AT NO GREATER DISTANCE THAN 10'-0" ON CENTER. WHERE COLOR CODED PVC INSULATION JACKETING IS NOT SPECIFIED, ALL PIPING IN MECHANICAL ROOMS AND FINISHED AREAS ARE TO BE PAINTED AS FOLLOWS:HOT WATER RED WITH WHITE BACKGROUND AND RED LETTERSGAS PIPING PAINT PIPE YELLOW35. PROVIDE FLEXIBLE PIPE CONNECTIONS AT ALL HYDRONIC PIPING CONNECTIONS AT CHILLERS, BASE MOUNTED PUMPS, AIR HANDLING UNITS, FAN BOXES, AND OTHER ROTATING EQUIPMENT.36. INSTALL A MANUAL AIR VENT AT EVERY HIGH POINT IN THE ENTIRE HYDRONIC PIPING SYSTEM.37. METALLIC LINES SHALL BE IDENTIFIED WITH DURABLE PRINTED PLASTIC WARNING TAPE, MINIMUM 3" WIDE, WITH LETTERING TO IDENTIFY BURIED LINE BELOW.38. NON-METALLIC PIPES, OTHER THAN GAS LINES, SHALL BE IDENTIFIED BY DETECTABLE WARNING TAPE, MINIMUM 2" WIDE, WITH LETTERING TO IDENTIFY BURIED LINE BELOW.39. WRAP ALL EXTERIOR ABOVE GROUND HYDRONIC PIPING WITH ELECTRIC TRACE LINE PRIOR TO INSULATING. WRAP INSULATION WITH ALUMINUM JACKET AND SEAL ALL JOINTS.40. DO NOT INSTALL PIPING OR DUCTWORK OVER ANY ELECTRICAL PANEL OR SWITCHGEAR.41. PROVIDE EQUIPMENT SUPPORT PAD (WHERE NOT EXISTING) FOR ALL BASE MOUNTED EQUIPMENT. PAD SHALL BE 4" HIGH FOR ALL OTHER MECHANICAL EQUIPMENT. 8" MINIMUM FROM EQUIPMENT TO END OF PAD ON ALL SIDES.42. ZIP TIES WILL NOT BE PERMITTED FOR USE AS CABLE SUPPORTS. WHERE NOT REQUIRED TO BE INSTALLED IN RACEWAY BY THE SPECIFICATION, PROVIDE J-HOOK SUPPORTS AND BRIDLE RINGS. CABLE SHALL BE INDEPENDENTLY SUPPORTED AND SHALL NOT BE SUPPORTED OF THE WORK OF OTHER TRADES.43. EACH ABOVE GROUND SECTION OF GAS PIPING SHALL BE ELECTRICALLY BONDED PER NC FUEL GAS CODE SECTION 31044. WHERE PIPING CONTAINING GAS IS TO BE REMOVED, OBSERVE PROCEDURE OF NCFGC 406.7.1, NFPA 54 7.2.7 AND 8.3.1 AND NFPA 56(PS) - DISCONNECT THE GAS PIPING FROM THE GAS SOURCE, VENT TO THE OUTDOORS, AND THOROUGHLY PURGE WITH AIR, WATER, OR INERT GAS BEFORE CUTTING OR WELDING.MECHANICAL ABBREVIATIONSHZ HERTZIF INJECTION FANIN INCHESINSUL INSULATIONISDL ISOLATIONKE KITCHEN EXHAUSTKW KILOWATTLAT LEAVING AIR TEMPERATURELBS POUNDSLF LINEAR FEETLLC LIQUID LEVEL CONTROLLERLWT LEAVING WATER TEMPERATUREMAT MIXED AIR TEMPERATUREMAX MAXIMUMMIN MINIMUMN.C. NORMALLY CLOSEDN.O. NORMALLY OPENNC NOISE CRITERIANIC NOT IN CONTRACTNK NECKNPSH NET POSITIVE SUCTION HEATNTS NOT TO SCALEOA OUTSIDE AIROAI OUTSIDE AIR INTAKEOBD OPPOSED BLADE DAMPEROD OUTSIDE DAMPEROV OUTLET VELOCITYP PUMPPD PRESSURE DROPPH PHASEPRESS PRESSUREPRV PRESSURE REDUCING VALVEPSIG POUNDS PER SQUARE INCHΔP PRESSURE DIFFERENTIALRA RETURN AIRREFRIG REFRIGERANTREG REGISTERRET RETURNRF RELIEF / RETURN FANRH RELATIVE HUMIDITYRM ROOMRO REVERSE OSMOSISRPM REVOLUTIONS PER MINUTERTU ROOFTOP UNITSA SUPPLY AIRSD SMOKE DAMPERSF SUPPLY FANSM SHEET METALSP STATIC PRESSURESQ. FT. SQUARE FEETSS STAINLESS STEELST SOUND TRAPT TANKTC TEMPERATURE CONTROLTE TOILET EXHAUSTTG TRANSFER GRILLETSP TOTAL STATIC PRESSURETYP TYPICALΔT TEMPERATURE DIFFERENTIALUH UNIT HEATERV VOLTAGEVAV VARIABLE AIR VOLUMEVD VOLUME DAMPERVEL VELOCITYVFD VARIABLE FREQUENCY DRIVEVIB VIBRATIONW WATTWB WET BULB TEMPERATUREWC WATER COLUMNWMS WIRE MESH SCREENWP WORKING PRESSUREDRAWN BY:CHECKED BY:REVISIONSSCAMPBELL@PDCENGINEERS.COMORANGE COUNTY SPORTPLEX HVACREPLACEMENTLEAD SHEETM0.00BID/PERMIT SETORANGE COUNTYJAVSWCPDC 2302205/17/2024NUMBER DATE DESCRIPTION11/18/2024
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