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Home My WebLink AboutM0.10HVAC - NOTES AND ABREVIATIONSSQUARE FEET ENTERING AIR TEMPERATURE SQFT EAT VARIABLE FREQUENCY DRIVE VARIABLE VOLUME EXHAUST AIR TERMINAL BOX WET BULB TEMPERATURE VARIABLE VOLUME SUPPLY AIR TERMINAL BOX LAT KW IN HX HZ HW HWS HWR HRC HR HP HPS HPR HD LEAVING AIR TEMPERATURE KILOWATT INCHES HEAT EXCHANGER HERTZ HEAT RECOVERY COIL - GLYCOL HOT WATER SUPPLY HOT WATER RETURN HIGH PRESSURE STEAM (>15 psig) HIGH PRESSURE CONDENSATE RETURN HOT WATER HOUR HEAD HORSEPOWER GS HB GR GALV GA FT FTR FPM FLEX FCV FD FA FCU F EXH EWT ESP ET ER ELEC EF EG HOSE BIBB CONN W/CHAINED CAP GLYCOL SUPPLY GALVANIZED GLYCOL RETURN FINNED TUBE RADIATION GAUGE FEET FEET PER MINUTE WB W/O WG WMS W/ W VFD VVE VV VD V WITHOUT WATER GAUGE WIRE MESH SCREEN WITH WIDTH VOLUME DAMPER VENT FLOW CONTROL VALVE FIRE DAMPER (W/ ACCESS DOOR) FLEXIBLE FAN COIL UNIT FREE AREA FAN EXTERNAL STATIC PRESSURE ENTERING WATER TEMPERATURE EXHAUST REGISTER EXHAUST EXPANSION TANK EXHAUST FAN ELECTRICAL EXHAUST GRILLE TEMPERATURETEMP UV TYP UNIT VENTILATOR TYPICAL STM SUP STL STDBY SS STANDBY STEAM STAINLESS STEEL SUPPLY STEEL POUNDS PER CUBIC FOOT REVOLUTIONS PER MINUTE PROCESS CHILLED WATER PROCESS CHILLED WATER RETURN (REFER TO CONTROLS LEGEND ABBREVIATIONS FOR ADDITIONAL NOMENCLATURE) COMBINATION AUTOMATIC SMOKE/FIRE DAMPER POUNDS PER SQUARE INCH GAUGE SOUND ATTENUATOR PRESSURE REDUCING VALVE PUMPED CONDENSATE LEAVING WATER TEMPERATURE LOW PRESSURE STEAM (0-15 psig) LOW PRESSURE CONDENSATE RETURN NUMBERNO. EA DOV DN DIM DDCFP DDC CWS D DB CWR CP CHWS CLG CHW CHWR CC CFM CD CRAC BOD BHP RETURNRET DRAIN OFF VALVE DIRECT DIGITAL CONTROL FIELD PANEL DIRECT DIGITAL CONTROL EACH DOWN DIMENSION DRY BULB TEMPERATURE CONDENSER WATER SUPPLY CONDENSER WATER RETURN DRAIN SF SQ SPECS SFD SDET SD SCH SATT SUPPLY FAN WITH ACCESS DOOR SQUARE SPECIFICATIONS SMOKE DETECTOR SMOKE DAMPER SCHEDULE RR RPM RM RLF RG RHC RH RF RETURN REGISTER RELIEF ROOM RETURN FAN REHEAT COIL RELATIVE HUMIDITY RETURN GRILLE CHILLED WATER SUPPLY CHILLED WATER RETURN CONDENSATE PUMP CHILLED WATER CEILING BOTTOM OF DUCT CUBIC FEET PER MINUTE COMPUTER ROOM AIR CONDITIONING UNIT BRAKE HORSEPOWER COOLING COIL CEILING DIFFUSER PRESSURE DROPPD PROCHW PROCHWR PSIG PRV PLBG PLUMBING PCF PC P OED OA NTS OPEN END DUCT PUMP OUTSIDE AIR NOT TO SCALE GENERIC HVAC ABBREVIATIONS AS AAV ATV ATC ARCH AHU ACD AF AD ACV AUTOMATIC AIR VENT ATMOSPHERIC VENT AUTOMATIC TEMPERATURE CONTROL AIR HANDLING UNIT AIR SEPARATOR ARCHITECT AUTOMATIC CONTROL VALVE AUTOMATIC CONTROL DAMPER AIR FOIL ACCESS DOOR NO NIC NC N/A MTD MAV MIN MFR NORMALLY OPEN NOT IN CONTRACT NORMALLY CLOSED NOT APPLICABLE MANUAL AIR VENT MOUNTED MINIMUM MANUFACTURER MECH LWT LPS LPR LF MECHANICAL LINEAR FEET TEFC VERT TSP GALLONS PER MINUTE H GPM HEIGHT VTR GENERAL EXHAUSTGE FPI FINS PER INCH TDH TE TD STD SP ENERGY MANAGEMENT SYSTEM EQUIP EMS EQUIPMENT TOTAL STATIC PRESSURE VENT THROUGH ROOF VERTICAL TOTALLY ENCLOSED FAN COOLED THERMODYNAMIC TRAP TOILET EXHAUST TOTAL DYNAMIC HEAD STATIC PRESSURE STANDARD KVA LAB MBH MAX NPSH OS&Y POS RA LB PH BRITISH THERMAL UNIT CG BTU CEILING GRILLE OB OC OBD NC AVG AVERAGE ADJ ADJUSTABLE L RETURN AIR POUND OUTSIDE STEM AND YOKE PROVIDED BY OTHER SECTION(S) PHASE OCTAVE BAND ON CENTER OPPOSED BLADE DAMPER NET POSITIVE SUCTION HEADNOISE CRITERIA THOUSAND BRITISH THERMAL UNITS PER HOUR LABORATORY MAXIMUM LENGTH KILOVOLT AMPERE BACKWARD INCLINEDBI Ø DIAMETER DEGREES FAHRENHEIT°F -- FC FORWARD CURVED FLTR FILTER DWG DRAWING HOT WATER REHEAT COILHWRHC PROCESS CHILLED WATER SUPPLYPROCHWS SA SUPPLY AIR HYDRONIC SYSTEM SPECIFIC ABBREVIATIONS AIR SYSTEM SPECIFIC ABBREVIATIONS STEAM SYSTEM SPECIFIC ABBREVIATIONS HEAT RECOVERY UNITHRU BTUH BRITISH THERMAL UNIT PER HOUR OPEN DRIP PROOFODP MCA MINIMUM CIRCUIT AMPS HEAT EXCHANGERHX ST STEAM TRAP ATD AIR TERMINAL DEVICE HVAC GENERAL NOTES GENERAL: 1. HVAC GENERAL NOTES, SYMBOLS LIST AND DETAILS ARE APPLICABLE TO ALL "M" SERIES DRAWINGS. 2. DRAWINGS ARE DIAGRAMMATIC AND ARE INTENDED TO INDICATE CAPACITY, SIZE, APPROXIMATE LOCATION AND GENERAL ARRANGEMENT. DETERMINE EXACT LOCATION OF SYSTEMS AND COMPONENTS IN FIELD. 3. DRAWINGS CANNOT BE FULLY AND CORRECTLY INTERPRETED WITHOUT REFERENCE TO LEGENDS, DETAILS, SCHEDULES AND SPECIFICATIONS. IT IS THE INTENT OF THE DRAWINGS TO SHOW THE INSTALLATION, AS DETAILED BY THE TYPICAL ARRANGEMENTS. ITEMS SHOWN ONCE ON FLOOR PLANS, ELEVATIONS, DETAILS OR DIAGRAMS MAY NOT BE REPEATED IN FULL FOR OTHER TYPICAL INSTANCES. 4. REFER TO SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS. 5. PROVIDE INFORMATION AND HARDWARE TO COORDINATE CONCRETE PADS AND STEEL PLATFORMS REQUIRED FOR MECHANICAL WORK. 6. COORDINATE ROOF AND WALL PENETRATIONS WITH WORK OF OTHER SECTIONS AND WITH FLASHING REQUIREMENTS. 7. RUN DUCTS AND PIPING CONCEALED, UNLESS SPECIFIED OTHERWISE, AND CLEAR OF CEILING INSERTS. ALL DUCTWORK SHALL BE INSTALLED AS CLOSE AS POSSIBLE TO WALL AND UNDERSIDE OF BEAMS AND JOISTS. 8. INSTALL SENSORS (TEMPERATURE, HUMIDITY, CO2, THERMOSTATS) AT LOCATIONS SHOWN ON PLANS OR AS DIRECTED BY ARCHITECT. MOUNTING HEIGHT AFF SHALL COMPLY WITH ADA AND SHALL BE MOUNTED LEVEL WITH ADJACENT SWITCHES (E.G. LIGHT SWITCHES). 9. COORDINATE WORK OF THIS SECTION WITH THAT OF OTHER SECTIONS. ALL WORK SHALL BE COORDINATED WITH ALL TRADES INVOLVED. OFFSETS IN PIPING AND DUCTS (INCLUDING DIVIDED DUCTS) AND TRANSITIONS AROUND OBSTRUCTIONS SHALL BE PROVIDED AT NO ADDITIONAL COST. 10. ACCESS PANELS SHALL BE PROVIDED TO CLEAN COILS AND SERVICE DAMPERS, HEATERS, VALVES AND ALL CONCEALED MECHANICAL EQUIPMENT. 11. SUPPORT ALL EQUIPMENT, PIPING AND DUCTWORK FROM BUILDING STRUCTURE. PROVIDE VIBRATION ISOLATION. FOR ROTATING EQUIPMENT, DUCTWORK AND PIPING IN ACCORDANCE WITH THE SPECIFICATIONS. PROVIDE TO THE CONSTRUCTION MANAGER OR GENERAL CONTRACTOR A LIST OF ALL WEIGHTS AND METHODS OF SUPPORT FOR COORDINATION. REFER TO SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS. 12. ALL CONTROL WIRE AND CONDUIT SHALL COMPLY WITH NATIONAL ELECTRIC CODE AND DIVISION 26. 13. ALL MATERIAL AND EQUIPMENT SHALL BE NEW. 14. ELEMENTS OF THE WORK SHALL BE INSTALLED IN A MANNER SUCH THAT AT SUBSTANTIAL COMPLETION THE FOLLOWING ITEMS, NEW OR EXISTING SHALL BE "FULLY AND REASONABLY ACCESSIBLE": HVAC CONTROL BOXES, JUNCTION BOXES, VALVES (OF EVERY SHAPE, SORT AND FUNCTION), DDC CONTROL BOXES, ELECTRICAL PANELS, FILTERS, BELTS, WATER COILS, DISCONNECT SWITCHES, AND MAINTENANCE ACCESS ELEMENTS INCLUDING PULL SPACE. a. "FULLY AND REASONABLY ACCESSIBLE" SHALL BE DEFINED AS: NATIONAL ELECTRIC CODE REQUIRED CLEARANCE FOR POWERED EQUIPMENT AND CAPABLE OF BEING ACCESSED FOR SERVICE, REPAIR OR REPLACEMENT BY AN AVERAGE SIZED INDIVIDUAL (ON A LADDER IF NECESSARY) AND CAPABLE OF BEING SERVICED OR REMOVED WITHOUT REMOVING OR MODIFYING OR DISTORTING OTHER COMPONENTS OF THE WORK. THE DESIGN INTENT PROVIDES A MINIMUM 2' x 2' x 2' ZONE FOR MAINTENANCE. b. CONFLICT WITH MEETING THESE REQUIREMENTS SHALL BE BROUGHT TO THE ATTENTION OF THE OWNER'S REPRESENTATIVE IN A TIMELY MANNER AND SHALL BE CORRECTED AT NO ADDITIONAL COST. AIR SYSTEM SPECIFIC NOTES: 1. VERIFY ALL EQUIPMENT CONNECTIONS WITH MANUFACTURER CERTIFIED DRAWINGS. VERIFY AND PROVIDE DUCT TRANSITIONS TO FURNISHED EQUIPMENT. FIELD VERIFY AND COORDINATE ALL DIMENSIONS BEFORE FABRICATION. 2. SHEETMETAL FITTINGS SHOWN ARE TO BE PROVIDED. NO SUBSTITUTES SHALL BE ALLOWED WITHOUT PRIOR CONSENT FROM ARCHITECT/ENGINEER. 3. REFER TO SPECIFICATIONS FOR DUCTWORK CONSTRUCTION CLASSES, SEAL, AND LEAKAGE CLASSES. 4. EXTERIOR LOUVERS ARE INDICATED FOR LOCATION ONLY. 5. SMOKE DETECTORS SHALL BE FURNISHED AND WIRED TO THE FIRE ALARM SYSTEM BY DIVISION 28. DIVISION 23 SHALL MOUNT THE DETECTORS IN DUCTWORK, WHERE REQUIRED BY CODE AND DIVISION 23, DIVISION 23 SHALL WIRE THE DETECTORS TO THE BAS SYSTEM AND FAN STARTERS FOR SHUTDOWN. 6. SMOKE DAMPERS SHALL BE UL555S LISTED. FIRE DAMPERS SHALL BE UL555 LISTED. PROVIDE FIRE DAMPERS, SMOKE DAMPERS AND SMOKE/FIRE DAMPERS AND ASSOCIATED ACCESS PANELS WHERE DAMPERS ARE SHOWN ON DRAWINGS IN COMPLIANCE WITH APPLICABLE BUILDING AND MECHANICAL CODES AND NFPA 90A. ACCESS DOOR DIMENSIONS SHALL MEET REQUIREMENTS OF NFPA 90A AND NFPA 80. 7. REFER TO REFLECTED CEILING PLANS FOR EXACT LOCATIONS OF AIR TERMINAL DEVICES. 8. DIFFUSER SIZES SHOWN ARE NECK SIZES; REGISTER AND GRILLE SIZE ARE NOMINAL. REFER TO DIFFUSER SCHEDULE FOR DUCT RUN-OUT SIZES. 9. PROVIDE FLEXIBLE CONNECTIONS ON ALL DUCTS CONNECTING TO FANS AND AIR HANDLING UNITS UNLESS INTERNALLY ISOLATED. ALL DUCTS TO BE GROUNDED ACROSS FLEXIBLE CONNECTION WITH FLEXIBLE COPPER GROUNDING STRAPS. 10. THE INSIDE OF DUCTWORK AND ALL MECHANICAL COMPONENTS VISIBLE THROUGH A GRILLE OR DIFFUSER SHALL BE PAINTED FLAT BLACK. 11. ALL RETURN AIR OPENINGS ABOVE CEILING SHALL BE PROVIDED WITH A 1/2" MESH ALUMINUM SCREEN (80% FREE AREA MINIMUM). 12. INSULATE DUCTWORK: PERFORM TESTS BEFORE INSULATING. 13. ELBOWS IN DUCT SYSTEMS SHALL BE FULL RADIUS (CENTERLINE RADIUS = 1.5 DUCT WIDTH) WHERE SPACE PERMITS. WHERE LIMITED CLEARANCE OCCURS, PROVIDE SHORT RADIUS ELBOW WITH FULL LENGTH SPLITTER VANES PER SMACNA. MITERED (SQUARE) ELBOWS WITH TURNING VANES SHALL NOT BE USED. 14. MANUAL DAMPERS ARE NOT SHOWN ON THE DRAWINGS IN ORDER FOR DRAWING CLARITY. PROVIDE MANUAL ADJUSTABLE DAMPERS ON EACH LOW PRESSURE SUPPLY RETURN AND EXHAUST DUCT TAKE OFF, AND AT EACH TAKE OFF TO REGISTERS, GRILLES AND DIFFUSERS. 15. UNLESS OTHERWISE NOTED, DUCTWORK CONNECTING TO DIFFUSERS OR VARIABLE VOLUME AIR TERMINAL UNITS SHALL BE SIZED PER EQUIPMENT/DIFFUSER CONNECTION SIZE. PIPING SPECIFIC NOTES: 1. VERIFY ALL EQUIPMENT CONNECTIONS WITH MANUFACTURER CERTIFIED DRAWINGS. VERIFY AND PROVIDE FITTINGS TO TRANSITION TO FURNISHED EQUIPMENT CONNECTION SIZES. FIELD VERIFY AND COORDINATE ALL DIMENSIONS BEFORE FABRICATION. 2. ALL CONDENSATE DRAIN LINES SHALL BE PIPED FULL SIZE OF THE UNIT DRAIN OUTLET, WITH "P" TRAP, CONNECTED TO BUILDING DRAINAGE SYSTEMS. SIZE DEPTH OF TRAP FOR ASSOCIATED AIR PRESSURE DIFFERENTIAL. REFER TO DETAIL ON DRAWINGS. 3. PERFORM TEST BEFORE INSULATING PIPING. 4. PROVIDE HANGERS, CLAMPS, OFFSETS, EXPANSION JOINTS, ANCHORS AND GUIDES TO PREVENT STRESS ON PIPING. 5. PROVIDE VENTS AT HIGH POINTS IN PIPING SYSTEMS AND DRAIN VALVES AT LOW POINTS. 6. PROVIDE AT LEAST THREE-ELBOW SWING FOR PIPE TAKE-OFFS TO TERMINAL EQUIPMENT AND RISERS. 7. ISOLATION VALVES IN PIPING SYSTEMS ARE NOT SHOWN ON PLANS (FOR CLARITY) BUT ARE REQUIRED AT ALL PIPE BRANCHES AND CONNECTIONS TO EQUIPMENT REFER TO DETAIL SHEETS AND FLOW DIAGRAMS. 8. PITCH HYDRONIC (WATER) PIPING UPWARD IN DIRECTION OF FLOW. PITCH STEAM AND CONDENSATE PIPING DOWNWARD IN DIRECTION OF FLOW. PITCH FUEL OIL PIPING TOWARD TANK. REFER TO SPECIFICATIONS FOR REQUIRED PITCH (I.E. GRADE OR SLOPE). 9. REFER TO EQUIPMENT SCHEDULES FOR PIPE RUN-OUT SIZES TO INDIVIDUAL PIECES OF EQUIPMENT. 10. UNLESS OTHERWISE NOTED, PIPING CONNECTING TO TERMINAL UNITS SHALL BE SIZED PER SCHEDULE. EXISTING EQUIPMENT TO BE RELOCATEDXR XN XM X NEW LOCATION OF RELOCATED EQUIPMENT EXISTING EQUIPMENT TO REMAIN EXISTING EQUIPMENT TO BE REMOVED 1. SITE VISIT: BEFORE SUBMITTING BID, VISIT AND CAREFULLY EXAMINE SITE TO IDENTIFY EXISTING CONDITIONS AND DIFFICULTIES THAT WILL AFFECT WORK OF THIS SECTION. NO EXTRA PAYMENT WILL BE ALLOWED FOR ADDITIONAL WORK CAUSED BY UNFAMILIARITY WITH SITE CONDITIONS THAT ARE VISIBLE OR READILY CONSTRUED BY EXPERIENCED OBSERVER. SITE VISIT IS PARTICULARLY IMPORTANT BECAUSE THIS IS RENOVATION WORK. 2. EXISTING CONDITIONS AND PREPARATORY WORK: BEFORE STARTING WORK IN A PARTICULAR AREA OF THE PROJECT, VISIT SITE AND EXAMINE CONDITIONS UNDER WHICH WORK MUST BE PERFORMED INCLUDING PREPARATORY WORK DONE UNDER OTHER SECTIONS OR CONTRACTS BY OWNER. REPORT CONDITIONS THAT MIGHT AFFECT WORK ADVERSELY IN WRITING TO ARCHITECT AND OWNER. DO NOT PROCEED WITH WORK UNTIL DEFECTS HAVE BEEN CORRECTED AND CONDITIONS ARE SATISFACTORY. COMMENCEMENT OF WORK SHALL BE CONSTRUED AS COMPLETE ACCEPTANCE OF EXISTING CONDITIONS AND PREPARATORY WORK. 3. DEMOLITION SHALL BE COORDINATED WITH OWNER, ARCHITECT, GENERAL CONTRACTOR, CONSTRUCTION MANAGER AND ENGINEER. 4. PROVIDE MECHANICAL DEMOLITION TERMINATION; CUT, VALVE AND CAP. DROP MECHANICAL DISTRIBUTION TO FLOOR. REMOVAL OF SYSTEM EQUIPMENT SHALL BE BY THE HVAC CONTRACTOR. 5. PROVIDE 2 WEEKS NOTICE TO OWNER OPERATIONS FOR SHUT DOWN OF ANY SERVICES AND/OR SYSTEMS. 6. REFER TO ALL DRAWINGS FOR GENERAL DESCRIPTION OF AREAS REQUIRING DEMOLITION. 7. REFER TO CONSTRUCTION MANAGER INSTRUCTIONS FOR ALL EXISTING EQUIPMENT AND MATERIALS THAT SHALL REMAIN THE PROPERTY OF THE OWNER. 8. ITEMS OF VALUE WHICH ARE NOT DIRECTED TO BE RETURNED TO THE OWNER, SHALL BECOME THE PROPERTY OF THE CONTRACTOR AND SHALL BE REMOVED FROM SITE AND LEGALLY DISPOSED OF. STORAGE OR SALE OF ITEMS ON THE PROJECT SITE IS PROHIBITED. 9. PROTECTION: ENSURE THE SAFE PASSAGE OF PERSONS IN AND AROUND THE BUILDING DURING DEMOLITION. PREVENT INJURY TO PERSONS AND DAMAGE TO PROPERTY. PROVIDE ADEQUATE SHORING AND BRACING TO PREVENT COLLAPSE. IMMEDIATELY REPAIR DAMAGED PROPERTY TO THE CONDITION BEFORE BEING DAMAGED. TAKE EFFECTIVE MEASURES TO PREVENT WINDBLOWN DUST. 10. UTILITIES: MAINTAIN ALL UTILITIES EXCEPT THOSE REQUIRING REMOVAL OR RELOCATION. KEEP UTILITIES IN SERVICE AND PROTECT FROM DAMAGE. DO NOT INTERRUPT UTILITIES SERVING OCCUPIED AREAS WITHOUT FIRST OBTAINING PERMISSION FROM THE CLINET IN WRITING. PROVIDE TEMPORARY SERVICES. 11. DRAWINGS ARE DIAGRAMMATIC ONLY AND REFLECT OVERALL SYSTEM REMOVAL. NOT EVERY ITEM OR COMPONENT OF A SYSTEM IS SHOWN. 12. PROVIDE SHUT DOWN OF SERVICES (FANS, PUMPS, AHUS, ETC.) AND TRACING OF ALL RISERS WITHIN BASE BID. 13. CONFIRM SUPPLY AND EXHAUST SYSTEM AIRFLOW CAPACITY OF ALL SYSTEMS, INCLUDING SYSTEMS NOT MODIFIED AS PART OF PHASE 1, IN BUILDING THROUGH PRE-CONSTRUCTION TESTING AND BALANCING REPORTS OF SYSTEMS TO BE EXTENDED. REPORTS SHALL INCLUDE COMPLETE FAN INFORMATION, CFM, ESP, TSP, RPM, VOLTS, AMPS AND VFD SPEEDS. PROVIDE AIRFLOW IN CFM AND DUCT STATIC PRESSURE MEASUREMENTS IN DUCT SYSTEMS TO DOCUMENT PERFORMANCE AT ALL SPACES IN BUILDING INCLUDING SPACES NOT MODIFIED AS PART OF PHASE 1. 14. CONFIRM HYDRONIC SYSTEM CAPACITY THROUGH PRE-CONSTRUCTION TESTING AND BALANCING REPORTS OF SYSTEMS TO BE EXTENDED. REPORTS SHALL INCLUDE PIPE SIZE, FLOW RATE, SUPPLY PRESSURE AND RETURN PRESSURE. PROVIDE HYDRONIC SYSTEM FLOW (GPM) AND PIPE SYSTEM PRESSURE (PSIG) MEASUREMENTS IN PIPING SYSTEMS TO DOCUMENT PERFORMANCE AT ALL SPACES SERVED BY SYSTEM, BOTH WITHIN PROJECT WORK SCOPE AREA AND BEYOND PROJECT WORK SCOPE AREA. 15. CONFIRM STEAM PIPING CAPACITY THROUGH PRE-CONSTRUCTION TESTING AND BALANCING REPORTS OF SYSTEMS TO BE EXTENDED. REPORTS SHALL INCLUDE PIPE SIZE AND STEAM PRESSURE (PSIG) WITH ALL EQUIPMENT OPERATIONAL TO DOCUMENT PERFORMANCE AT ALL SPACES SERVED BY SYSTEM, BOTH WITHIN PROJECT WORK SCOPE AREA AND BEYOND PROJECT WORK SCOPE AREA. RENOVATION PRE-BID SITE VISIT AND DEMOLITION NOTES ADA AMERICANS WITH DISABILITIES ACT CBR CBS CHILLED BEAM WATER RETURN CHILLED BEAM WATER SUPPLY AFF ABOVE FINISHED FLOOR AHU-A SEPARATE PREHEAT/RECOVERY COIL ALTERNATE 1. LENGTHEN AHU TO ACCOMMODATE 2-ROW PRE-HEAT COIL BETWEEN ENERGY RECOVERY COIL AND COOLING COIL WITH ADDITIONAL ACCESS ZONE. ADD ADDITIONAL VALVES AND PIPING COMPONENTS TO ACCOMMODATE NEW COIL.a 2. PROVIDE 50 GPM RE-CIRCULATING FREEZE PROTECTION PUMP FOR NEW HEATING COIL. 3. REMOVE P-6 SINCE ENERGY RECOVERY DOES NOT REQUIRE REDUNDANCY. 4. RE-CONFIGURE PIPING SO ENERGY RECOVERY LOOP DOES NOT GO THROUGH HEAT EXCHANGERS. 5. HX-2 BECOMES HX-4A AND HX-3 IS REMOVED FROM SCOPE. HX-4A WILL CONNECT TO EXISTING PRE-HEAT LOOP IN BASEMENT TO PROVIDE ADDED CAPACITY FOR AHU PRE-HEAT. PUMP SIZING IS ADEQUATE BUT MAY NEED TO RUN BOTH SIMULTANEOUSLY INSTEAD OF LEAD/LAG. 6. UPDATE CONTROLS TO ACCOMMODATE THIS CHANGE. Architect Payette Associates Architects, P.C. 290 Congress Street, Fifth Floor Boston, MA 02210-1005 Tel: 617-895-1000 Fax: 617-895-1002 MEP/FP Engineer Vanderweil 274 Summer Street Boston, MA 02210 Tel: 617-423-7423 Structural Engineer SGH 41 Seyong Street Building 1, Suite 500 Waltham, MA 02453 Tel: 781-907-9000 Fax: 781-907-9009 Drawing Scale Project Number Date Issued Renovation of Olin Hall for Chemical and Biomolecular Engineering - Phase 1 Code Consultant Hastings Consulting Inc 142 Hanlon Road Hollister, MA 01746 Tel: 508-397-8417 Lighting Designer Available Light 10 Derby Square #3 Salem, MA 01970 Tel: 978-744-6800 N Cost Consultant Dharam Consulting 745 Atlantic Ave Fl 8 Boston, MA 02111 Tel: 617-913-4345 Abatement Specialist Delta 860 Hooper Rd Endwell, NY 13760 Tel: 607-231-6600 Civil Engineer T.G. Miller, P.C. 203 N. Aurora Street Ithaca, NY 14850 Tel: 607-272-6477 NTS M0.10 29313.00 11/30/18 HVAC - NOTES AND ABREVIATIONS # DATE DESCRIPTION 1 11/30/18 ISSUED FOR CONSTRUCTION DocuSign Envelope ID: D6CBE973-BBA9-4BE0-861E-C2F6DD72B539 12/10/2018