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GENERAL LEGEND ABBREVIATIONS <br />SYMBOL DESCRIPTION ABBR DESCRIPTION I ABET I DESCRIPTION <br />DETAIL SYMBOL A = IDENTIFYING NUMBER <br />ABV <br />ABOVE <br />L <br />B <br />tAA <br />B = SHEET WHERE DETAIL IS SHOWN <br />AD <br />ACCESS DOOR <br />LAT <br />AHU <br />AIR HANDLING UNIT <br />LEIS <br />AL <br />ACOUSTIC LINED <br />LF <br />A <br />DETAIL SYMBOL, A = IDENTIFYING NUMBER <br />AP <br />ACCESS PANEL <br />LVG <br />B = SHEET WHERE DETAIL IS TAKEN <br />APD <br />AIR PRESSURE DROP <br />LWG <br />B C <br />C = SHEET WHERE DETAIL IS SHOWN <br />ARCH <br />ARCHITECT/ARCHITECTURAL <br />LWR <br />ARV <br />AUTOMATIC RELIEF VALVE or <br />LWr <br />A <br />SECTION SYMBOL: A = IDENTIFYING LETTER <br />ARW <br />ACID RESTISTANT VENT <br />ACID RESTISTANT WASTE <br />MAX <br />MBH <br />B <br />B = SHEEr WHERE SECTION IS SHOWN <br />BDD <br />BACKDRAFT DAMPER <br />BFP <br />BACKFLOW PREVENTER <br />MCC <br />BHP <br />BRAKE HORSEPOWER <br />MECH <br />BG <br />BELOW GROUND <br />MFR <br />SECTION SYMBOL: A = IDENTIFYING LETTER <br />BJ <br />BETWEEN JOISTS <br />MIN <br />A <br />B = SHEET WHERE SECTION IS TAKEN <br />BTU <br />BRITISH THERMAL UNIT <br />MISC <br />B C <br />C = SHEET WHERE SECTION IS SHOWN <br />BTUH <br />BRITISH THERMAL UNITS PER HOUR <br />MTD <br />MTG <br />C <br />CENTIGRADE <br />CC <br />COOLING COIL <br />N/A <br />SECTION CUT LINE INDICATOR <br />CD <br />CEILING DIFFUSER <br />N/C <br />CFM <br />CUBIC FEET PER MINUTE <br />N/0 <br />CG <br />CEILING GRILLE <br />NC <br />O <br />KEYED REFERENCE NOTE OR SHEET NOTE <br />CI <br />C. <br />CAST IRON <br />CEILING <br />NIC <br />TUTS <br />CO <br />CLEANOUT <br />POINT OF CONNECTION (POC) SYMBOL <br />CONC <br />CONCRETE <br />OA <br />CONN <br />CONNECT or CONNECTION <br />OBD <br />P1-1 <br />PLUMBING FIXTURE REFERENCE (REFER TO SCHEDULE) <br />CONST <br />CONSTRUCTION <br />O/C <br />CONT <br />CONTINUATION <br />OD <br />AHU-1 <br />EQUIPMENT IDENTIFICATION (REFER TO SCHEDULES) <br />CR <br />CONDENSATE RETURN <br />OPNG <br />OA <br />MEDICAL GAS OUTLET IDENTIFICATION (REFER TO SCHEDULE) <br />DB <br />DECIBLE or DRY BULB <br />PCV <br />D. <br />DIRECT DIGITAL CONTROL <br />RD <br />DIA <br />DIAMETER <br />PH or 4 <br />MEDICAL GAS ZONE VALVE STATION MOUNTED IN WALL <br />DIM <br />DIMENSION <br />PLCS <br />ON <br />DOWN <br />PQC <br />DPR <br />DAMPER <br />PQUA <br />I{ <br />DWG <br />DRAWING <br />PRYPSI <br />I� <br />MEDICAL GAS ALARM PANEL MOUNTED IN WALL <br />E-100 <br />EXHAUST AIR <br />PSIG <br />NUMBER INDICATES CFM QUANTITY <br />MEDICAL GAS OUTLET <br />EA <br />EACH <br />R-100 <br />EAT <br />ENTERING AIR TEMPERATURE <br />EF <br />EXHAUST FAN <br />RA <br />EG <br />EXHAUST GRILLE <br />RAG <br />REVISION CLOUD AND REVISION NUMBER <br />ELEC <br />ELECTRIC or ELECTRICAL <br />REQD <br />ELEV <br />EMCS <br />ELEVATION RPBP <br />ENERGY MANAGEMENT CONTROL SYSTEM <br />ESP <br />EXTERNAL STATIC PRESSURE <br />XX <br />BINARY (YES/NO) SENSING SWITCH <br />ENT <br />ENTERING WATER TEMPERATURE <br />RPM <br />(PIPE OR DUCT MOUNTED) <br />IXH <br />EXHAUST <br />EXST or (E) <br />EXISTING <br />5-100 <br />SA <br />XX <br />BINARY (YES/NO) SENSING SWITCH <br />F <br />FAHRENHEIT <br />SF <br />(SURFACE MOUNTED) <br />FA <br />FACE AREA <br />SHT <br />XX <br />ANALOG SENSING DEVICE <br />FCO <br />FCU <br />FLOOR CLEANOUT <br />FAN COIL UNIT <br />SIM <br />SP <br />(PIPE OR DUCT MOUNTED) <br />FD <br />FLOOR DRAIN <br />SO <br />FDPR <br />FIRE DAMPER <br />S4 FT <br />XX <br />ANALOG SENSING DEVICE <br />FFD <br />FF <br />FUNNEL FLOOR DRAIN <br />FINAL FILTER <br />SS <br />(SURFACE MOUNTED) <br />FLR <br />FLOOR <br />STD <br />FPM <br />FEET PER MINUTE <br />© <br />ANALOG SENSING DEVICE (SURFACE MOUNTED) <br />S <br />FEET PER SECOND <br />THK <br />TP <br />(APPROPRIATE FOR MEASURED FLUID) <br />FOP <br />FOOT <br />TYP <br />SUBSCRIPT LETTER (X) INDICATES: <br />FV <br />FACE VELOCITY <br />TU <br />A - ALARM PRESSURE SENSOR <br />GA <br />GAGE or GAUGE <br />D - DIFFERENTIAL PRESSURE <br />GAL <br />GALLON <br />UBC <br />F - FLOW RATE <br />GALV <br />GALVANIZED <br />UFC <br />H - HUMIDITY <br />L - LOW LIMIT <br />GPM <br />GALLONS PER HOUR <br />UPC <br />P -PRESSURE (STATIC) <br />GPM <br />GALLONS PER MINUTE <br />UPC <br />UG <br />T - TEMPERATURE <br />H <br />HEIGHT <br />UH <br />V - VELOCITY & VOLUME FLOW RATE <br />HD <br />HEAD <br />HP <br />HORSEPOWER <br />VA <br />HTG <br />HEATING <br />VAC <br />HVAC <br />HEATING, VENTILATION AND <br />VAV <br />AIR CONDITIONING <br />VD <br />HWG <br />HIGH WALL GRILLE <br />VEL <br />HWR <br />HIGH WALL REGISTER <br />VFD <br />DUCT FITTING REQUIREMENTS <br />HZ <br />HERTZ <br />VIR <br />THE FOLLOWING DUCT FITTINGS ARE CONSIDERED ACCEPTABLE. THE CONTRACTOR SHALL OBTAIN <br />ID <br />INSIDE DIAMETER <br />W <br />W <br />ENGINEER'S APPROVAL FOR OTHER SPRIOR TO FABRICATION. ONLY FITTINGS WITH EQUAL OR <br />TIE <br />INVERT ELEVATION <br />W/O <br />LOWER PRESSURE <br />RED. <br />DROP WILL BE CONSIDERED. <br />IN <br />INCH or INCHES <br />WB <br />INSUL <br />INSULATION <br />WCO <br />DUCT ELBOWS <br />OFFSETS <br />INV <br />INVERT <br />WG <br />NOTE: OFFSETS (TO AVOID OBSTRUCTIONS) ARE <br />KIN <br />KILOWATT <br />WGE <br />PLANS. NOT NECESSARILY SHOWN <br />W REQUIRED BUT <br />KWH <br />KILOWATT HOUR <br />WPD <br />6qENDER <br />1/2W MAX. 15' <br />CTS W/ AIR VELOCITY <br />1,500 FPM <br />R=W <br />DUCTS W/ AIR VELOCITY <br />OVER 1,500 FPM AND <br />ALL DUCTS UPSTREAM OF <br />TERMINAL UNITS <br />LENGTH <br />LEAVING AIR TEMPERATURE <br />POUNDS <br />LINEAR FOOT/FEET <br />LEAVING <br />LOW WALL GRILLE <br />LOW WALL REGISTER <br />LEAVING WATER TEMPERATURE <br />MAXIMUM <br />1000 BRITISH THERMAL <br />UNITS PER HOUR <br />MOTOR CONTROL CENTER <br />MECHANICAL <br />MANUFACTURER <br />MINIMUM <br />MISCELLANEOUS <br />MOUNTED <br />MOUNTING <br />NOT APPLICABLE <br />NORMALLY CLOSED <br />NORMALLY OPEN <br />NOISE CRITERIA <br />NOT IN CONTRACT <br />NOT TO SCALE <br />OUTSIDE AIR <br />OPPOSED BLADE DAMPER <br />ON CENTER <br />OUTSIDE DIAMETER <br />OPENING <br />PRESSURE CONTROL VALVE <br />PRESSURE DROP <br />PHASE <br />PLACES <br />POINT OF CONNECTION <br />POINT OF USE ALARM <br />PRESSURE REDUCING VALVE <br />POUNDS PER SQUARE INCH <br />POUNDS PER SQUARE INCH GAGE <br />RETURN AIR <br />NUMBER INDICATES CFM QUANTITY <br />RETURN AIR <br />RETURN AIR GRILLE <br />REQUIRED <br />REDUCED PRESSURE BACKFLOW <br />PREVENTOR <br />REVOLUTIONS PER MINUTE <br />SUPPLY AIR <br />NUMBER INDICATES CFM QUANTITY <br />SUPPLY AIR <br />SUPPLY FAN <br />SHEET <br />SIMILAR <br />STATIC PRESSURE <br />SQUARE <br />SQUARE FOOT/FEET <br />STAINLESS STEEL <br />STANDARD <br />THICK <br />TRAP PRIMER or TEST PLUG <br />TYPICAL <br />TERMINAL UNIT <br />UNIFORM BUILDING CODE <br />UNIFORM FIRE CODE <br />UNIFORM MECHANICAL CODE <br />UNIFORM PLUMBING CODE <br />UNDERGROUND <br />UNIT HEATER <br />VALVE <br />VACUUM <br />VARIABLE AIR VOLUME <br />VOLUME DAMPER <br />VELOCITY <br />VARIABLE FREQUENCY DRIVE <br />VENT THRU ROOF <br />WIDE <br />WITH <br />WITHOUT <br />WET BULB <br />WALL CLEANOUT <br />WATER GAGE <br />WASTE GAS EVACUATION <br />WATER PRESSURE DROP <br />WEIGHT <br />AIR DISTRIBUTION LEGEND <br />SYMBOL <br />ABBR DESCRIPTION <br />i <br />LIGHT UNEWORK INDICATES <br />EXISTING DUCT OR EQUIPMENT <br />INDICATES DUCT OR EQUIPMENT <br />TO BE REMOVED <br />1802 18z12 <br />DUCT SIZE IN INCHES <br />FIRST SIZE LISTED IS SIDE SHOWN <br />ACOUSTIC LINED DUCT <br />R DUCT OFFSET (UP) IN DIRECTION OF ARROW <br />I--�J�� <br />(NOT TYPICALLY SHOWN) <br />5--D <br />D DUCT OFFSET (TIN) IN DIRECTION OF ARROW <br />(NOT TYPICALLY SHOWN) <br />18"0 18'i <br />ROUND DUCT IN INCHES <br />18�12"0 18z12'Y <br />OVAL DUCT IN INCHES <br />18z10 18z12 <br />CHANGE OF DUCT SIZE <br />1801 i <br />CHANGE OF DUCT SIZE (TRIANGLE NOT ALWAYS SHOWN) <br />�® <br />}—]H <br />RECTANGULAR SUPPLY DUCT ELBOW TURNED UP <br />�® <br />RECTANGULAR SUPPLY DUCT ELBOW <br />TURNED DOWN OR AWAY <br />RECTANGULAR RETURN/EXHAUST DUCT ELBOW TURNED UP <br />RECTANGULAR RETURN/EXHAUST DUCT ELBOW <br />TURNED DOWN OR AWAY <br />�] <br />SMALL RECTANGULAR DUCT ELBOW <br />TURNED DOWN OR AWAY <br />ROUND DUCT ELBOW TURNED UP <br />ROUND DUCT ELBOW TURNED DOWN OR AWAY <br />END OF DUCT WITH CAP <br />(UNLESS INDICATED OTHERWISE) <br />U��6W0W <br />FLEX FLEXIBLE DUCT <br />AD DUCT ACCESS DOOR <br />VD VOLUME DAMPER <br />INSULATION REQUIREMENTS <br />1. DUCT INSULATION REQUIREMENTS: <br />SUPPLY DUCTS: R-3.3 INSULATION FOR ALL SUPPLY DUCTS WITHIN THE BUILDING ENVELOPE. R-8 <br />INSULATION FOR OUTDOOR DUCTS OR DUCTS WITH OUTDOOR AIR. R-6 FOR DUCTS IN <br />UNCONDITIONED SPACES. <br />RETURN DUCTS (ALL DUCTS TRAVELING FROM SPACE BACK TO AN AIR HANDLER): R-8 INSULATION <br />FOR OUTDOOR DUCTS AND R-6 FOR DUCTS IN UNCONDITIONED SPACES. <br />ALL EXTERIOR DUCTS TO BE CLAD WITH ALUMINUM. <br />45 OR 90' <br />RADIUS ELBOWS <br />BRANCH DUCT TAKEOFFS <br />ON BOTTOMCESS OF DUCT W/ MINIMUM PRESSURE DROP DUCT CONSTRUCTION AND SEALING REQUIREMENTS <br />UPSTREAM OF TURNING OBTAIN PRIOR APPROVAL FOR ALL RECTANGULAR <br />VANES. REQUIRED FOR RETURN & EXHAUST LOCATIONS DUCT <br />RETURN AND EXHAUST DUCTS N45'CONICAL 1. SUPPLY DUCTWORK FROM AIR HANDLER TO TERMINAL UNITS <br />TURNING VANES SPIN-INTURNING VANES 2" STATIC PRESSURE CLASS WITH ALL TRANSVERSE JOINTS, LONGITUDINAL SEAMS, AND DUCT WALL <br />ROUND DUCT�—REQUIR PANEL (TYPICAL) OK ONLY RUNOUT TO SINGLE PENETRATIONS SEALED (SMACNA SEAL CUSS A). <br />CHANGE OF DUCT SIZE REQUIRED FOR RETURN RECTANGULAR UNDER DIFFUSER OR <br />& EXHAUST DUCTS 1.500 FPM GRILLE ONLY 2.SUPPLY DUCTWORK DOWNSTREAM OF TERMINAL UNITS: <br />V STATIC PRESSURE CLASS WITH ALL TRANSVERSE JOINTS, LONGITUDINAL SEAMS, AND DUCT WALL <br />MAX. IF PENETRATIONS SEALED (SMACNA SEA CLASS A). SPIRAL LOCK SEAMS IN ROUND AND FLAT OVAL <br />FFD= DUCTWORK DO NOT REQUIRE SEALING. <br />TRANSITION NOT LESS THAN TWICE THE DUCT AREA2W, BUT NOT <br />ORE THAN 12' 3.EXHAUST AND RETURN DUCTWORK: <br />/3W OK IF <br />CONICAL SPIN -IN OR DER 3,000 FPM) Z" STATIC PRESSURE CLASS WITH ALL TRANSVERSE JOINTS, LONGITUDINAL SEAMS, AND DUCT WALL <br />TRANSITION TO CONNECTION W I~ PENETRATIONS SEALED (SMACNA SEAL CLASS A). 1' PRESSURE CLASS ACCEPTABLE BETWEEN <br />SIZE AT LEAST 50% GREATER GRILLES AND FIRST DAMPER. <br />THAN AREA OF SMALLER <br />DUCT <br />END TAP <br />DRAWING INDEX <br />SHEET NUMBER <br />DESCRIPTION <br />MOA <br />COVER SHEET, GENERAL NOTES, & INDEX <br />MO.2 <br />MECHANICAL SPECIFICATIONS <br />MO.3 <br />MECHANICAL SCHEDULES <br />MIA <br />MECHANICAL FLOOR PLAN - DEMO <br />M2.1 <br />MECHANICAL FLOOR PLAN <br />M3.1 <br />DETAILS <br />GENERAL MECHANICAL NOTES <br />1. CONTRACTOR SHALL SECURE, MAINTAIN, AND PAY FOR ALL REQUIRED PERMITS, LICENSES, AND <br />INSPECTIONS FOR DURATION OF WORK UNLESS DIRECTED OTHERWISE. <br />2. MATERIALS, METHODS, AND INSTALLATION SHALL COMPLY WITH THE PROVISIONS OF THE 2021 <br />EDITIONS OF THE INTERNATIONAL MECHANICAL CODE, WASHINGTON STATE ENERGY CODE, <br />INTERNATIONAL BUILDING CODE, INTERNATIONAL FIRE CODE, UNIFORM PLUMBING CODE, AND <br />GOVERNING STATE AND LOCAL CODES AND ORDINANCES. <br />3. THESE PLANS ARE SCHEMATIC AND DO NOT SHOW EXACT ROUTING OR EVERY OFFSET WHICH <br />MAY BE REQUIRED. THE CONTRACTOR SHALL COORDINATE WITH ALL OTHER TRADES AND IS <br />TO VERIFY ALL CLEARANCES BEFORE COMMENCING WORK. <br />4. ALL WORK SHALL COMPLY WITH THE OWNER'S REQUIREMENTS. <br />5. SUBSTITUTIONS OF EQUIPMENT OTHER THAN AS SPECIFIED SHALL BE THE COMPLETE <br />RESPONSIBILITY OF THE CONTRACTOR. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ANY <br />DESIGN CHANGES OR IMPACTS THAT THE PROPOSED EQUIPMENT SUBSTITUTION HAS ON OTHER <br />DISCIPLINES. ANY ADDITIONAL ELECTRICAL, STRUCTURAL, MECHANICAL, OR ARCHITECTURAL <br />REQUIREMENTS SHALL BE PROVIDED AT NO ADDITIONAL EXPENSE TO THE OWNER. <br />6. PLANS AND SPECIFICATIONS SHALL BE TAKEN TOGETHER. PROVIDE ALL WORK CALLED FOR IN <br />EITHER. IN CASE OF CONFLICT BETWEEN SPECIFICATIONS AND PLANS THE MORE STRINGENT <br />SHALL APPLY. <br />7. ALL EQUIPMENT AND MATERIAL ON THE JOB SITE PRIOR TO INSTALLATION SHALL BE COVERED <br />AND PROTECTED FROM DIRT, DUST, AND DAMAGE. <br />8. PROVIDE ALL DEMOLITION WORK CALLED FOR OR REQUIRED BY THE INSTALLATION. REMOVE <br />ALL EXISTING EQUIPMENT AND MATERIALS NOT REUSED UNLESS SPECIFIED OTHERWISE BY THE <br />OWNER'S REP. <br />9. VERIFY PHYSICAL DIMENSIONS OF EQUIPMENT TO ENSURE THAT ACCESS CLEARANCES CAN BE <br />MET. COORDINATE FINAL EQUIPMENT LOCATIONS W/ GENERAL CONTRACTOR AND OTHER <br />TRADES TO ALLOW FOR REQUIRED MECHANICAL EQUIPMENT CLEARANCES. <br />10. PROVIDE NEC CODE MINIMUM HORIZONTAL AND VERTICAL WORKING CLEARANCES FOR ALL <br />ELECTRICAL PANELS AND EQUIPMENT. OFFSET MECHANICAL WORK AS REQUIRED. <br />11. CONTRACTOR IS RESPONSIBLE FOR VERIFICATION OF INSTALLATION STANDARDS AND <br />CONSTRUCTION CONDITIONS. CONTRACTOR SWILL FIELD VERIFY ALL DIMENSIONS AND EXISTING <br />CONDITIONS PRIOR TO SHOP FABRICATION AND/OR FIELD INSTALLATION. DISCREPANCIES <br />BETWEEN EXISTING CONDITIONS AND THE CONSTRUCTION DRAWINGS SHALL BE CALLED TO THE <br />ATTENTION OF THE ENGINEER. WORK DONE WITHOUT THE ENGINEERS APPROVAL IS THE <br />RESPONSIBILITY OF THE CONTRACTOR. <br />12. ALL MECHANICAL EQUIPMENT, MATERIALS, AND INSTALLATION SHALL BE PROVIDED BY THE <br />CONTRACTOR. ALL EQUIPMENT SHALL BE COMPLETE, INSTALLED, AND FULLY FUNCTIONAL <br />PRIOR TO FINAL ACCEPTANCE OF THE WORK. <br />13. INSTALL ALL EQUIPMENT PER MANUFACTURERS RECOMMENDATIONS AND REQUIREMENTS. ANY <br />CONFLICTS BETWEEN THE MANUFACTURERS DOCUMENTATION AND THE CONTRACT DOCUMENTS <br />SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER. <br />14. DO NOT ALLOW ANY WORK TO BE COVERED UP OR ENCLOSED UNTIL INSPECTED, TESTED AND <br />APPROVED BY OWNER'S REPRESENTATIVE OR AUTHORITY HIVING JURISDICTION. <br />15. MECHANICAL EQUIPMENT SHALL NOT BE USED FOR TEMPORARY HEAT DURING CONSTRUCTION. <br />0 <br />2 <br />O � <br />Z <br />41 <br />U N <br />Ib a <br />Z. <br />-cw <br />Ez <br />91 <br />�g=l <br />2727 Oakes Ave. <br />Suite 100 <br />Everett, WA 98201 <br />REVISIONS <br />A DOH REVISION 12/11/24 <br />D <br />WASgf�zP <br />FT <br />59941 <br />I ICNAL1, <br />12/12/24 <br />z� <br />0 Q <br />U W <br />,Ld <br />V = <br />/ <br />U Q <br />LL- 0 <br />U <br />nQ Q <br />LLJ W <br />U m <br />LLJ <br />0 <br />00 <br />� LL_ <br />242095 <br />aeAWN CEI <br />ON <br />PERMIT SET <br />08/22/24 <br />COVER SHEET <br />AND GENERAL <br />INFO <br />J <br />M0.1 <br />City of Everett Permit Services <br />EVERETT Reviewed for Permit 01/14/2025 <br />