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SHEET <br />DATE:09/16/2025 <br />SHEET <br />Revision <br />#REV:Date <br />GA <br />R <br />A <br />G <br />E <br /> <br />C <br />O <br />N <br />V <br />E <br />R <br />S <br />I <br />O <br />N <br /> <br />T <br />O <br /> <br />A <br />D <br />U <br />13 <br />1 <br />3 <br /> <br />N <br />. <br /> <br />S <br />P <br />U <br />R <br />G <br />E <br />O <br />N <br /> <br />S <br />T <br />, <br /> <br />U <br />N <br />I <br />T <br />A <br />- <br />H <br />SA <br />N <br />T <br />A <br /> <br />A <br />N <br />A <br />, <br /> <br />C <br />A <br /> <br />9 <br />2 <br />7 <br />0 <br />1 <br />13 <br />2 <br />2 <br /> <br />F <br />R <br />E <br />N <br />C <br />H <br /> <br />S <br />T <br />SA <br />N <br />T <br />A <br /> <br />A <br />N <br />A <br />, <br />C <br />A <br /> <br />9 <br />2 <br />7 <br />0 <br />1 <br />ME <br />P <br /> <br />& <br /> <br />E <br />N <br />E <br />R <br />G <br />Y <br /> <br />C <br />O <br />N <br />S <br />U <br />L <br />T <br />I <br />N <br />G <br />(8 <br />1 <br />8 <br />) <br /> <br />2 <br />3 <br />3 <br /> <br />- <br /> <br />1 <br />9 <br />9 <br />6 <br />Mi <br />c <br />h <br />a <br />e <br />l <br />@ <br />e <br />n <br />t <br />h <br />a <br />l <br />p <br />y <br />e <br />n <br />g <br />. <br />c <br />o <br />m <br />EN <br />T <br />H <br />A <br />L <br />P <br />Y <br /> <br />E <br />N <br />G <br />I <br />N <br />E <br />E <br />R <br />I <br />N <br />G <br /> <br />G <br />R <br />O <br />U <br />P <br />Wo <br />o <br />d <br />l <br />a <br />n <br />d <br /> <br /> <br />H <br />i <br />l <br />l <br />s <br />, <br /> <br /> <br />C <br />A <br /> <br /> <br />9 <br />1 <br />3 <br />6 <br />7 <br /> 6 <br />3 <br />2 <br />0 <br /> <br />T <br />o <br />p <br />a <br />n <br />g <br />a <br /> <br />c <br />a <br />n <br />y <br />o <br />n <br /> <br />b <br />l <br />v <br />d <br />. <br />, <br />S <br />t <br />e <br /> <br />1 <br />6 <br />3 <br />0 <br /> <br /># <br />5 <br />0 <br />1 <br />MEP REV 9/16/25 <br />M1.0 <br />GENERAL NOTES <br />GENERAL NEW NOTES: <br />1.PROVIDE SEISMIC RESTRAINTS AS NEEDED FOR THE MECHANICAL SYSTEMS IN <br />THE PROJECT BASED ON THE SEISMIC ANALYSIS REQUIRED BY THE <br />SPECIFICATIONS. <br />2.COORDINATE THE INSTALLATION OF THE MECHANICAL SYSTEMS WITH OTHER <br />TRADES TO ENSURE A NEAT AND ORDERLY INSTALLATION. INSTALL DUCTWORK <br />AND PIPING AS TIGHT TO STRUCTURE AS POSSIBLE. COORDINATE WITH OTHER <br />TRADES TO AVOID CONFLICTS. COORDINATE INSTALLATION OF DUCTWORK AND <br />PIPING TO AVOID CONFLICTS WITH ELECTRICAL PANELS, LIGHTING FIXTURES, ETC. <br />ANY MODIFICATIONS REQUIRED DUE TO LACK OF COORDINATION WILL BE THE <br />RESPONSIBILITY OF THE CONTRACTOR AT NO EXTRA COST TO THE OWNER. <br />3.PROVIDE TEMPORARY BARRIERS TO CONTAIN DUST AND DEBRIS RESULTING <br />FROM THE PERFORMANCE OF THE WORK TO THE AREA WHERE WORK IS BEING <br />PERFORMED. <br />4.ALL MECHANICAL EQUIPMENT SHOWN ON THE MECHANICAL PLANS SHALL BE <br />PROVIDED BY DIVISION 23 UNLESS OTHERWISE NOTED. <br />5.NEW MECHANICAL EQUIPMENT, DUCTWORK AND PIPING ARE SHOWN AT <br />APPROXIMATE LOCATIONS. FIELD MEASURE FINAL DUCTWORK AND PIPING <br />LOCATIONS PRIOR TO FABRICATION AND MAKE ADJUSTMENTS AS REQUIRED TO <br />FIT THE DUCTWORK AND PIPING WITHIN THE AVAILABLE SPACE. VERIFY THAT <br />FINAL EQUIPMENT LOCATIONS MEET MANUFACTURER'S RECOMMENDATIONS <br />REGARDING SERVICE CLEARANCE AND PROPER AIRFLOW CLEARANCE AROUND <br />EQUIPMENT. <br />6.REFER TO ARCHITECTURAL DRAWINGS FOR RELATED CONSTRUCTION DETAILS AS <br />APPLICABLE TO THE HVAC SYSTEM. <br />7.COORDINATE LOCATION OF ROOF MOUNTED HVAC EQUIPMENT AND ROOF <br />PENETRATIONS WITH THE ARCHITECTURAL AND STRUCTURAL DRAWINGS. <br />8.INDOOR AIR QUALITY MEASURES: PROTECT INSIDE OF (INSTALLED AND <br />DELIVERED) DUCTWORK AND HVAC UNITS FROM EXPOSURE TO DUST, DIRT, PAINT <br />AND MOISTURE. REPLACE INSULATION THAT HAS BECOME WET AT ANY TIME <br />DURING CONSTRUCTION, DRYING THE INSULATION IS NOT ACCEPTABLE. SEAL <br />ANY TEARS OR JOINTS OF INTERNAL FIBERGLASS INSULATION. REMOVE DEBRIS <br />FROM CEILING/RETURN AIR PLENUM INCLUDING DUST. AN INDEPENDENT, <br />PROFESSIONAL DUCT CLEANING COMPANY SHALL VACUUM CLEAN ANY <br />DUCTWORK CONNECTED TO HVAC UNITS THAT WERE OPERATED DURING THE <br />CONSTRUCTION PERIOD AFTER NEW FILTERS ARE INSTALLED AND PRIOR TO <br />TURNING SYSTEM OVER TO THE OWNER. THE INTERNAL SURFACES AND <br />ASSOCIATED COILS OF ANY HVAC UNITS THAT WERE OPERATED SHALL ALSO BE <br />CLEANED. <br />9.INSTALL DUCTWORK AND PIPING PARALLEL TO BUILDING COLUMN LINES UNLESS <br />OTHERWISE SHOWN OR NOTED. <br />10.OVERHEAD HANGERS AND SUPPORTS FOR EQUIPMENT, DUCTWORK AND PIPING <br />SHALL BE FASTENED TO BUILDING JOISTS OR BEAMS. DO NOT ATTACH HANGERS <br />AND SUPPORTS TO THE ABOVE FLOOR SLAB OR ROOF EXCEPT WHERE CONCRETE <br />INSERTS IN CONCRETE SLABS ARE ALLOWED BY THE SPECIFICATIONS. <br />11.COORDINATE LOCATION OF EQUIPMENT SUPPORTS WITH LOCATION OF <br />EQUIPMENT ACCESS PANELS/DOORS TO ENABLE SERVICE OF EQUIPMENT AND/OR <br />FILTER REPLACEMENT. <br />12.SEAL PENETRATIONS THROUGH THE BUILDING COMPONENTS IN ACCORDANCE <br />WITH THE CONTRACT SPECIFICATIONS. FIREPROOF PENETRATIONS THROUGH <br />FIRE RATED COMPONENTS IN ACCORDANCE WITH U.L. REQUIREMENTS.PROVIDE <br />FIRE DAMPER/FORE SMOKE DAMPER FOR ANY DUCT THAT PENETRATE FIRE <br />RATED WALL TO KEEP THE WALL FORE RATINGS. <br />13.COORDINATE THE EXACT MOUNTING SIZE AND FRAME TYPE OF DIFFUSERS, <br />REGISTERS AND GRILLES WITH THE SUPPLIER TO MEET THE CEILING, WALL AND <br />DUCT INSTALLATION REQUIREMENTS. <br />14.ADJUST LOCATION OF CEILING DIFFUSERS, REGISTERS AND GRILLES AS <br />REQUIRED TO ACCOMMODATE FINAL CEILING GRID AND LIGHTING LOCATIONS. <br />15.VERIFY THERMOSTAT EXACT LOCATIONS WITH ARCHITECT PRIOR TO <br />INSTALLATION. INSTALL DEVICES WITH TOP OF DEVICE AT MAXIMUM 48” <br />” <br />” <br />MECHANICAL SYMBOLS <br />THIS IS A MASTER LEGEND AND NOT ALL SYMBOLS OR ABBREVIATIONS ARE USED. <br />STANDARD MOUNTING HEIGHTS <br />CU <br />1 <br />1 <br />M1 <br />1 <br />M1 <br />USE THE DEFAULT MOUNTING HEIGHTS SHOWN ABOVE UNLESS NOTED OTHERWISE IN THE <br />SPECIFICATIONS OR ELSEWHERE. MOUNTING HEIGHTS LISTED ARE ABOVE FINISHED <br />FLOOR (AFF) OR ABOVE FINISHED GRADE (AFG) TO TOP OF DEVICE. ALL DEVICES SHALL BE <br />INSTALLED IN COMPLIANCE WITH CURRENT ADA AND LOCAL REQUIREMENTS. <br />48" <br />48" <br />ANNOTATION <br />MECHANICAL OR FIRE PROTECTION PLAN NOTE CALLOUT <br />MECHANICAL EQUIPMENT DESIGNATION (CONTRACTOR PROVIDED <br />UNO) <br />CONNECTION POINT OF NEW WORK TO EXISTING <br />DETAIL REFERENCE UPPER NUMBER INDICATES DETAIL NUMBER <br />LOWER NUMBER INDICATES SHEET NUMBER <br />SECTION CUT DESIGNATION <br />ABBREVIATIONS <br />LWB LEAVING WET BULB <br />LWT LEAVING WATER TEMPERATURE <br />LV LOUVER <br />MAU MAKE-UP AIR UNIT <br />MAX MAXIMUM <br />MBH 1000 BTU PER HOUR <br />MD MOTORIZED DAMPER <br />MFR MANUFACTURER <br />MIN MINIMUM <br />N/A NOT APPLICABLE <br />N/C NORMALLY CLOSED <br />N/O NORMALLY OPEN <br />NC NOISE CRITERIA <br />(N) NEW <br />NF NON-FUSED <br />NIC NOT IN CONTRACT <br />OA OUTSIDE AIR <br />PICV PRESSURE INDEPENDENT <br />CONTROL VALVE <br />PROVIDE FURNISH AND INSTALL <br />QTY QUANTITY <br />RA RETURN AIR <br />RC ROOM CRITERIA <br />RD RETURN DUCT <br />REA RELIEF AIR <br />RF RETURN FAN <br />RH RELATIVE HUMIDITY <br />RH ROOF HOOD <br />RPM REVOLUTIONS PER MINUTE <br />RTU ROOFTOP UNIT <br />SA SUPPLY AIR <br />CSD CEILING SUPPLY DIFFUSER <br />CRG CEILING RETURN GRILL <br />WSG WALL SUPPLY GRILL <br />WRG WALL RETURN GRILL <br />WEG WALL EXHAUST GRILL <br />TG TRANSFER GRILL <br />EG EXHAUST GRILL <br />SLD SUPPLY LINER DIFFUSER <br />RG RETURN GRILL <br />SD SMOKE DUCT DETECTOR <br />SD SUPPLY DUCT <br />SF SUPPLY FAN <br />SOW SCOPE OF WORK <br />SP STATIC PRESSURE <br />TBD TO BE DETERMINED <br />TC/C TEMPERATURE CONTROLS <br />CONTRACTOR <br />TCP TEMPERATURE CONTROL PANEL <br />TF TRANSFER FAN <br />TFA TO FLOOR ABOVE <br />TFB TO FLOOR BELOW <br />TT TEMPERATURE TRANSMITTER <br />TYP TYPICAL <br />U/F UNDERFLOOR <br />U/G UNDERGROUND <br />U/S UNDERSLAB <br />UH UNIT HEATER <br />U/C UNDERCUT <br />UTR UP TO ROOF <br />VAV VARIABLE AIR VOLUME <br />VFD VARIABLE FREQUENCY DRIVE <br />VRF VARIABLE REFRIGERANT FLOW <br />VRV VARIABLE REFRIGERANT <br />VOLUME <br />W/WITH <br />W/O WITHOUT <br />WB WET BULB <br />WC WATER COLUMN <br />WPD WATER PRESSURE DROP <br />XP EXPLOSION-PROOF <br />HVAC DUCTWORK AND ACCESSORIES <br />BD <br />TS <br />THERMOSTATS (USER ADJUSTABLE) (TOP OF DEVICE) <br />CONTROLS (TOP OF DEVICE) <br />A/C AIR CONDITIONING <br />ACC AIR COOLED CHILLER <br />ACCU AIR COOLED CONDENSING UNIT <br />AFC ABOVE FINISHED CEILING <br />AFF ABOVE FINISHED FLOOR <br />AFG ABOVE FINISHED GRADE <br />AHJ AUTHORITY HAVING <br />JURISDICTION <br />AHU AIR HANDLING UNIT <br />AP ACCESS PANEL <br />B BOILER <br />BAS BUILDING AUTOMATION SYSTEM <br />BB BACKBONE <br />BD BACKDRAFT DAMPER <br />BFC BELOW FINISHED CEILING <br />BFF BELOW FINISHED FLOOR <br />BFG BELOW FINISHED GRADE <br />BFP BOILER FEED PUMP <br />BOD BOTTOM OF DUCT <br />BOS BOTTOM OF STRUCTURE <br />BTU BRITISH THERMAL UNIT <br />CH CHILLER <br />CFM CUBIC FEET PER MINUTE <br />CP CONDENSATE PUMP <br />CPT CONTROL POWER TRANSFORMER <br />CRAC COMPUTER ROOM AIR <br />CONDITIONING UNIT <br />CRU COMPUTER ROOM UNIT <br />CT COOLING TOWER <br />CV CONTROL VALVE <br />CWP CONDENSER WATER PUMP <br />CU CONDENSING UNIT <br />CHWP CHILLED WATER PUMP <br />DB DECIBELS <br />DBA DECIBELS AVERAGE <br />DDC DIRECT DIGITAL CONTROL <br />DI DIGITAL INPUT <br />DN DOWN <br />DS DUCT SILENCER <br />DX DIRECT EXPANSION <br />DTR DOWN THRU ROOF <br />(E)EXISTING <br />EA EXHAUST AIR <br />EG EXHAUST GRILLE <br />EAT ENTERING AIR TEMPERATURE <br />ED EXHAUST DUCT <br />EDB ENTERING DRY BULB <br />EF EXHAUST FAN <br />EMS ENERGY MANAGEMENT SYSTEM <br />ETR EXISTING TO REMAIN <br />EWB ENTERING WET BULB <br />EWT ENTERING WATER <br />TEMPERATURE <br />FCU FAN COIL UNIT <br />FFA FROM FLOOR ABOVE <br />FFB FROM FLOOR BELOW <br />FF FINISHED FLOOR <br />FSG FLOOR SUPPLY GRILL <br />FRG FLOOR RETURN GRILL <br />FPM FEET PER MINUTE <br />GC GENERAL CONTRACTOR <br />GPM GALLONS PER MINUTE <br />HOA HAND-OFF-AUTOMATIC <br />HTG HEATING <br />HWP HEATING WATER PUMP <br />IN WC INCHES OF WATER COLUMN <br />L LOUVER <br />LAT LEAVING AIR TEMPERATURE <br />LDB LEAVING DRY BULB <br />LP LOW PRESSURE <br />T <br />H <br />VD <br />FS <br />MD <br /># <br />FD <br />CFSD <br />SD <br />CO <br />HS <br />PS <br />CO2 <br />RD <br />SP <br />DP <br />LINEAR SLOT DIFFUSER <br />INSULATED FLEXIBLE DUCT (MAX. 5'-0" LONG) <br />BRANCH DUCT WITH 45° RECTANGLE-ROUND BRANCH FITTING AND <br />MANUAL VOLUME DAMPER <br />ELBOW WITH TURNING VANES <br />BRANCH DUCT WITH BELL-MOUTH FITTING & MANUAL VOLUME <br />CONTROL DAMPER <br />RETURN, EXHAUST, OR OUTSIDE AIR DUCT UP <br />RETURN, EXHAUST, OR OUTSIDE AIR DUCT DOWN <br />SUPPLY AIR DUCT UP <br />SUPPLY AIR DUCT DOWN <br />EQUIPMENT WITH FLEXIBLE DUCT CONNECTION <br />SAD <br />XXX (CFM OF SUPPLY DIFFUSER OR REGISTER) <br />RG <br />XXX(CFM OF EXHAUST GRILLE) <br />MANUAL VOLUME DAMPER <br />SQUARE TO ROUND TRANSITION <br />DUCT MOUNTED SMOKE DETECTOR (SD=SUPPLY/RD=RETURN) <br />RISER DESIGNATION <br />FIRE DAMPER <br />COMBINATION FIRE SMOKE DAMPER <br />SMOKE DAMPER <br />VOLUME DAMPER <br />MOTORIZED DAMPER <br />BACKDRAFT DAMPER <br />ALL DUCT DIMENSIONS SHOWN ON DRAWINGS ARE INSIDE DIMENSIONS. REFER TO <br />DUCTWORK SPECIFICATIONS FOR DUCTWORK INSULATION AND LINER INFORMATION. <br />HVAC CONTROL DEVICES <br />HUMIDISTAT <br />THERMOSTAT <br />CARBON MONOXIDE SENSOR <br />CARBON DIOXIDE SENSOR <br />DIFFERENTIAL PRESSURE SENSOR <br />FLOW SWITCH <br />HUMIDITY SENSOR <br />PULL STATION <br />STATIC PRESSURE <br />TEMPERATURE SENSOR <br />1 <br />THIS PROJECT SHALL COMPLY WITH THE FOLLOWING CODES: <br />·2022 CALIFORNIA BUILDING CODE (CBC) <br />·2022 CALIFORNIA MECHANICAL CODE (CMC) <br />·2022 CALIFORNIA ELECTRICAL CODE (CEC) <br />·2022 CALIFORNIA PLUMBING CODE (CPC) <br />·2022 CALIFORNIA BUILDING ENERGY EFFICIENCY STANDARDS (BEES) <br />·2022 CALIFORNIA GREEN BUILDING STANDARDS CODE (CALGREEN) <br />·ALL APPLICABLE LOCAL AMENDMENTS. <br />·SCOPE OF WORK: <br />·PROVIDE DUCTLESS HEATPUMP MINI SPLIT TO ADU. <br />·EXHAUST FAN VENTILATION FOR BATHROOM. <br />·KITCHEN VENT DUCT. <br />·DRYER VENT DUCT.