Appendix C1 - AMIL RTU Replacement Phase 2.pdf

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PROJECT NUMBER

SUBMISSION DATE

DRAWN BY

SHEET NAME

SHEET NUMBER

SUBMISSION TYPE

ISSUE FOR CONSTRUCTION

PROFESSIONAL CERTIFICATION. I CERTIFY THAT THESE

DOCUMENTS WERE PREPARED OR APPROVED BY ME,

AND THAT I AM A DULY LICENSED ENGINEER UNDER THE

LAWS OF THE STATE OF MARYLAND,

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CS-1

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COVER SHEET

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ANNE ARUNDEL COMMUNITY COLLEGE

AMIL ROOF TOP AIR HANDLING UNITS

7009 ARUNDEL MILLS CIRCLE

HANOVER, MARYLAND 21076

DRAWING LIST

Sheet

Number Sheet Name

CS-1 COVER SHEET

M-1 MECHANICAL COVER SHEET

M-2 MECHANICAL BASEMENT AND FIRST FLOOR PLANS

M-3 MECHANICAL FOURTH AND ROOF PLANS - DEMOLITION

M-4 MECHANICAL FOURTH AND ROOF PLANS - NEW WORK

M-5 MECHANICAL SCHEDULES

M-6 MECHANICAL DETAILS

E-1 ELECTRICAL LEGENDS

E-2 ELECTRICAL BASEMENT AND FIRST FLOOR PLANS

E-3 ELECTRICAL FOURTH FLOOR PLANS

E-4 ELECTRICAL ROOF PLANS

S-1 STRUCTURAL GENERAL NOTES

S-2 STRUCTURAL ROOF FRAMING PLAN

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SCOPE OF WORK

BASE BID:

• REMOVE RTU-4 AND REPLACE IN-KIND, MODIFY FOURTH FLOOR VAV TERMINALS TO BE COMPATIBLE WITH

AND OPERABLE FROM THE EXISTING BAS TRIDIUM SYSTEM.

ALTERNATES (REFER TO PRICING SHEET FOR DESIGNATIONS):

• REMOVE RTU-1 AND REPLACE IN-KIND, MODIFY LOWER LEVEL AND FIRST FLOOR VAV TERMINALS TO BE

COMPTAIBLE WITH AND OPERABLE FROM THE EXISTING BAS TRIDIUM SYSTEM.

ADD REHEAT COILS TO EXISTING VAVS WITHOUT HEATING. ESTIMATED QUANTITY:

• LOWER LEVEL : 0

• FIRST FLOOR : 4

• SECOND FLOOR : 5

• THIRD FLOOR : 5

• FOURTH FLOOR : 0

IN LIUE OF REPAIRING VAVS, REPLACE EXISTING VAVS WITH NEW UNITS WITH REHEAT COILS. ESTIMATED QUANTITY:

• LOWER LEVEL : 4

• FIRST FLOOR : 27

• SECOND FLOOR : 0

• THIRD FLOOR : 0

• FOURTH FLOOR : 19

GENERAL NOTES

INTERNATIONAL CODE COUNCIL

IBC - INTERNATIONAL BUIILDING CODE - 2021 EDITION - AS ADOPTED BY THE STATE OF MARYLAND

IMC - INTERNATIONAL MECHANICAL CODE - 2021 EDITION - AS ADOPTED BY THE STATE OF MARYLAND

IECC - INTERNATIONAL ENERGY CONSERVATION CODE - 2021 EDITION - AS ADOPTED BY THE STATE OF MARYLAND

IPC - INTERNATION PLUMBING CODE - 2021 EDITION - AS ADOPTED BY THE STATE OF MARYLAND

APPLICABLE CODES AND STANDARDS

MECHANICAL LEGEND

BREAK LINE

THERMOSTAT

FLEXIBLE DUCTWORK

FLOW ARROW

REDUCER (DUCTWORK)

SUPPLY DUCT UP/DN

RETURN DUCT UP/DN

EXHAUST DUCT UP/DN

BALANCING DAMPER

EXTENT OF DEMOLITION

POINT OF RECONNECTION

EXISTING CONDITIONS

NEW WORK

DEMOLITION

T

1. DRAWINGS ARE DIAGRAMMATIC AND NOT ALL APPURTENANCES ARE SHOWN. 3-D DRAWINGS AND RISERS ARE PROVIDED FOR INFORMATIONAL PURPOSES ONLY AND ARE MEANT TO CONVEY DESIGN INTENT. ALLOW FOR ADDITIONAL PIPE/DUCT OFFSETS, AS REQUIRED. PROVIDE ALL MATERIALS AND LABOR TO PROVIDE A COMPLETE AND OPERABLE SYSTEM IN ACCORDANCE WITH THE

CONTRACT DRAWINGS, SPECIFICATIONS, AND AUTHORITY HAVING JURISDICTION.

2. COORDINATE INSTALLATION OF WORK WITH ALL OTHER TRADES.

3. COORDINATE SIZE AND LOCATION OF ROOFTOP CURBS WITH STRUCTURAL FRAMING.

4. COORDINATE SIZE AND LOCATIONS OF ALL FLOOR, WALL, AND ROOF OPENINGS REQUIRED TO INSTALL THE WORK WITH ALL OTHER

TRADES.

5. COORDINATE DUCTWORK AND PIPING LAYOUT WITH OPENINGS IN STRUCTURAL BEAMS, WALLS, ELEMENTS, ETC.

6. DEVELOP AND MAINTAIN A SET OF COORDINATION DRAWINGS AT THE JOB SITE THAT ACCOUNTS FOR ALL TRADES. REVIEW THE

COORDINATION DRAWINGS, COORDINATE WITH ALL TRADES, AND RESOLVE ANY POTENTIAL CONFLICTS PRIOR TO ORDERING OR

INSTALLING ANY PORTION OF WORK.

7. SUBMIT WRITTEN REQUEST FOR INFORMATION WHERE CONSTRUCTABILITY ISSUES ARE ENCOUNTERED IN THE FIELD. PROVIDE A FULL DESCRIPTION OF THE ISSUE AND RECOMMENDED SOLUTIONS. INCLUDE SKETCHES FOR EACH OPTION ALONG WITH ANY ASSOCIATED

CHANGE ORDER COST ESTIMATES.

8. ANY DEVIATIONS FROM THE DRAWINGS MUST BE APPROVED IN WRITING BY THE ENGINEER OF RECORD. ANY CHANGES OR MODIFICATIONS MADE WITHOUT CONSENT MAY RESULT IN WORK BEING REMOVED AND INSTALLED ACCORDING TO THE PLANS.

9. SPECIFICATIONS AND DRAWINGS ARE COMPLEMENTARY, AND MUST BE USED IN COMBINATION TO OBTAIN COMPLETE CONSTRUCTION INFORMATION. SUBMIT WRITTEN REQUEST FOR INFORMATION IF ANY DISCREPANCIES BETWEEN SPECIFICATION AND DRAWINGS ARE

FOUND.

10. PROVIDE ONLY NEW MATERIALS AND EQUIPMENT FROM REPUTABLE MANUFACTURERS REGULARLY ENGAGED IN THE MANUFACTURE OF SUCH PRODUCTS. PERFORM ALL WORK IN A PROFESSIONAL MANNER BY WORKERS SKILLED IN THE TYPE OF WORK BEING PERFORMED.

11. KEEP THE WORK SITE AND SURROUNDING AREA FREE FROM ACCUMULATION OF WASTE MATERIALS GENERATED BY WORK PERFORMED UNDER THIS CONTRACT. REMOVE CONSTRUCTION DEBRIS FROM THE WORK SITE DAILY AND DISPOSE OF IT IN A LEGAL MANNER.

12. PROVIDE TWO YEAR WARRANTY FOR ALL WORK (MATERIALS, LABOR, AND EQUIPMENT) FOR A PERIOD OF TWO YEARS COMMENCING WITH THE DATE OF ACCEPTANCE OF ALL WORK BY THE OWNER UNLESS OTHERWISE NOTED IN THE SPECIFICATIONS.

13. OBTAIN ALL LICENSES AND PERMITS REQUIRED BY STATE AND LOCAL JURISDICTIONAL AUTHORITIES FOR PERFORMANCE OF WORK.

14. MAINTAIN A RED LINE SET OF RECORD DRAWINGS AT THE JOB SITE THAT REFLECT ACTUAL EXECUTION OF THE WORK INCLUDING

UPDATED EQUIPMENT SCHEDULES, DETAILS, CONTROLS DIAGRAMS AND SEQUENCES AND LOCATIONS OF EQUIPMENT, PIPING, AND DUCTWORK. PROVIDE THESE DRAWINGS IN CAD AND PDF FORMAT TO THE OWNER (AS-BUILT DRAWINGS) WITHIN 90 DAYS OF SYSTEM

ACCEPTANCE.

15. DETAILS ARE DIAGRAMMATIC AND ARE INTENDED TO SHOW REQUIRED ACCESSORIES AND RELATIVE ARRANGEMENT OF ELEMENTS OF CONSTRUCTION. CONTRACTOR SHALL ADAPT INSTALLATION RELATIVE TO SITE CONDITIONS AND MANUFACTURER’S INSTALLATION

INSTRUCTIONS.

MECHANICAL INSTALLATION NOTES

1. COMPLETE ALL TESTS BEFORE ANY INSULATION IS APPLIED.

2. LOCATE PRESSURE, TEMPERATURE, AND FLOW MEASURING DEVICES IN ACCESSIBLE LOCATIONS WITH STRAIGHT SECTIONS OF

DUCT/PIPE UPSTREAM/DOWNSTREAM IN ACCORDANCE WITH MANUFACTURER’S RECOMMENDATIONS.

3. THE PRODUCT OF A SINGLE MANUFACTURER SHALL BE USED FOR EACH ITEM OF THE SAME EQUIPMENT TYPE.

4. INSTALL ALL CONTROL WIRE IN CONDUIT. CONTROL WIRE AND CONDUIT SHALL COMPLY WITH THE NATIONAL ELECTRIC CODE AND THE

ELECTRICAL SPECIFICATIONS.

5. PROVIDE ACCESS PANELS/DOORS IN CEILINGS, WALLS, FLOORS, AND DUCTWORK FOR ALL ITEMS REQUIRING ADJUSTMENT, TESTING, OR

INSPECTION INCLUDING SMOKE DETECTORS, FIRE DAMPERS, SMOKE DAMPERS, VOLUME DAMPERS, ACTUATORS, FANS, HUMIDIFIERS, COILS, ETC.

6. OF SLAB-TO-SLAB PARTITIONS AND SHAFTS AIRTIGHT TO PRESERVE RETURN AIR PATHWAYS.

7. ALL PIPE SIZES SHOWN ARE NOMINAL SIZES.

8. LOCATE HVAC AIR INTAKE A MINIMUM OF 10 FEET FROM PLUMBING VENTS, EXHAUST OUTLETS, GAS-FIRED EQUIPMENT VENTS, ETC.

MECHANICAL EQUIPMENT INSTALLATION NOTES

1. INSTALL ALL EQUIPMENT IN ACCORDANCE WITH MANUFACTURERS' INSTRUCTIONS AND PER CONTRACT DRAWINGS AND

SPECIFICATIONS. IF MANUFACTURERS' INSTRUCTIONS ARE IN DIRECT CONFLICT WITH INSTRUCTIONS ON THE DRAWINGS OR IN THE

SPECIFICATIONS CONTACT THE ENGINEER OF RECORD FOR CLARIFICATION.

2. COORDINATE WORK WITH OTHER TRADES TO PROVIDE ALL CLEARANCES FOR EQUIPMENT SERVICE AND MAINTENANCE INCLUDING ACCESS TO PANELS, CONTROLS, FILTERS, VALVING, ETC., VERIFY PHYSICAL DIMENSIONS OF EQUIPMENT TO ENSURE THAT ALL CLEARANCES CAN BE MET BEFORE PURCHASING EQUIPMENT. A MINIMUM OF 30 INCHES BY 30 INCHES SHALL BE PROVIDED AT EQUIPMENT ACCESS POINTS. APPLIANCES AND EQUIPMENT SHALL BE REPLACEABLE WITHOUT REMOVING PERMANENT CONSTRUCTION AND ACCESS TO EQUIPMENT SHALL BE PROVIDED PER IMC ACCESS AND SERVICE SPACE REQUIREMENTS WHERE APPLICABLE (E.G.

PERMANENT LADDER, UNOBSTRUCTED PASSAGEWAYS, CONTINUOUS FLOORING, LIGHTING, ETC.).

3. WHERE EXPOSURE TO LIVE ELECTRICAL CONNECTIONS IS LIKELY DURING MAINTENANCE ACTIVITIES MAINTAIN NEC WORKING CLEARANCES: 36 INCHES WORKING CLEARANCE IN FRONT OF ELECTRICAL ACCESS PANELS LESS THAN 150 VOLTS (TO GROUND) AND 42 INCHES WORKING CLEARANCE IN FRONT OF ELECTRICAL ACCESS PANELS 151 VOLTS (TO GROUND) OR MORE WHILE ALSO MAINTAINING A CLEARANCE OF 30 INCH WIDTH OR THE WIDTH OF THE ELECTRICAL ACCESS PANEL, WHICHEVER IS LARGER. 48 INCHES WORKING

CLEARANCE IS REQUIRED WHERE ELECTRICAL ACCESS PANEL ARE FACING EACH OTHER.

4. COORDINATE EQUIPMENT CONNECTIONS WITH MANUFACTURER’S CERTIFIED DRAWINGS, PROVIDE ALL PIPE AND DUCT TRANSITIONS AS

REQUIRED TO CONNECT TO EQUIPMENT.

5. PROVIDE VIBRATION ISOLATION FOR ALL EQUIPMENT TO PREVENT TRANSMISSION OF VIBRATION TO BUILDING STRUCTURE.

6. PROVIDE FLEXIBLE DUCT CONNECTIONS AT DUCT CONNECTIONS TO AIR HANDLING UNITS, FANS, AND OTHER EQUIPMENT REQUIRING

VIBRATION ISOLATION.

7. PROVIDE EQUIPMENT DRAIN LINES TO NEAREST DRAIN, PIPE SIZE SHALL BE NO SMALLER THAN DRAIN CONNECTION SIZE. PROVIDE P-

TRAP AT UNIT FOR AIR CONDITIONING UNIT CONDENSATE DRAINS AND ROUTE TO STORM DRAIN / ROOF DRAIN. SLOPE CONDENSATE

DRAIN AT A MINIMUM OF 1/8 INCH PER FOOT.

8. FIELD-ERECTED AND FACTORY-ASSEMBLED AIR HANDLING UNIT COILS SHALL BE ARRANGED FOR REMOVAL FROM THE UPSTREAM SIDE WITHOUT DISMANTLING SUPPORTS. PROVIDE GALVANIZED STRUCTURAL STEEL SUPPORTS FOR ALL COILS IN BANKS OVER TWO COILS

HIGH TO PERMIT THE INDEPENDENT REMOVAL OF ANY COIL.

9. AIR HANDLING UNITS SHALL OPERATE WITH NO MOISTURE CARRYOVER FROM COOLING COIL.

10. PROVIDE EQUIPMENT WITH MANUFACTURER’S INTEGRAL DISCONNECT AND POWER RECEPTACLE UNLESS OTHERWISE NOTED.

11. REPLACE ALL AIR FILTERS PRIOR TO AIR BALANCING AND CLEAN OUT ALL PIPE STRAINERS PRIOR TO WATER BALANCING.

12. PROVIDE FULL SET OF LAMINATED AS-BUILT SCHEMATIC CONTROL DIAGRAMS, SEQUENCES, POINTS LISTS, AND WIRING DIAGRAMS IN

MECHANICAL ROOM PROVIDE THE SAME ON INSIDE DOOR OF EACH CONTROL PANEL FOR THAT PANEL’S EQUIPMENT.

13. ALL EQUIPMENT SHALL HAVE ENGRAVED NAMEPLATE REFLECTING EQUIPMENT CAPACITIES EITHER PROVIDED BY MANUFACTURER OR

CONTRACTOR. NAMEPLATE SHALL BE READILY VISIBLE AND UNOBSTRUCTED. EACH UNIT SHALL ALSO BE UNIQUELY LABELED AND THE LABEL SHALL INDICATE THE AREA OF SERVICE FOR THOSE UNITS THAT SERVE REMOTE AREAS.

14. MAINTAIN 10 FEET SEPARATION BETWEEN ROOF MOUNTED EQUIPMENT AND UNPROTECTED ROOF EDGES.

15. PROVIDE DUCT SMOKE DETECTOR IN RETURN DUCT MAIN FOR UNITS WHOSE SUPPLY AIRFLOW EXCEEDS 2,000 CFM. HARD WIRE DUCT

DETECTOR TO AHU FOR SHUT DOWN UPON SMOKE DETECTION AND TIE INTO FIRE ALARM SYSTEM.

16. BASIS OF DESIGN MODEL NUMBERS ARE PROVIDED FOR REFERENCE / CONVENIENCE AND CAN BE ADJUSTED DURING FINAL EQUIPMENT

SELECTIONS. EQUIPMENT SHALL MEET ALL PERFORMANCE CRITERIA AND INCLUDE ALL ACCESSORIES AS SPECIFIED IN THE CONTRACT

DOCUMENTS.

17. AHU ACCESS DOORS SHALL OPEN INTO THE SIDE OF HIGHER STATIC PRESSURE.

MECHANICAL HVAC NOTES

1. RISES AND DROPS IN DUCTWORK, ACCESS DOORS, VOLUME DAMPERS, ETC. ARE INDICATED ON DRAWINGS FOR CLARITY FOR SPECIFIC

LOCATION REQUIREMENTS AND DO NOT INDICATE THE EXTENT OF THE REQUIREMENTS FOR THESE ITEMS.

2. DUCT DIMENSIONS ON DRAWINGS ARE INTERNAL CLEAR DIMENSIONS, INCREASE DUCT SIZE TO COMPENSATE FOR DUCT LINING

THICKNESS.

3. PROVIDE SHEET METAL FLASHING FOR EXPOSED DUCTWORK WALL AND CEILING PENETRATIONS.

4. PROTECT ALL NEW AND EXISTING HVAC EQUIPMENT BEFORE AND AFTER INSTALLATION, INCLUDING DUCTWORK, VAV TERMINALS, ZONE

DAMPERS AND DIFFUSERS, FROM DUST AND CONTAMINATION. IF THE HVAC SYSTEM IS USED DURING FIT-OUT CONSTRUCTION, THE PRESCRIPTIVE MEASURES IN SMACNA (CHAPTER 3) SHALL BE FOLLOWED REGARDING SOURCE CONTROL, PATHWAY INTERRUPTION, HOUSEKEEPING AND CLEANUP. CONTRACTOR IS RESPONSIBLE FOR CLEANUP COST FOR EQUIPMENT AND DUCTWORK CONTAMINATED WITH CONSTRUCTION DUST INCLUDING VACUUM CLEANING THE PLENUM SPACE ABOVE THE CEILING. FOLLOWING ARE PROCEDURES TO PROTECT THE DUCTWORK: SEAL ALL DUCT OPENINGS, BOTH SUPPLY AND RETURN, AND WRAP ALL EQUIPMENT WITH PLASTIC. PLACE FILTER MEDIA (NO LESS THAN MERV 8 RATED FILTERS) AT ALL OPENINGS FOR RETURN AIR INCLUDING RETURN GRILLES IN THE CEILING OR NEGATIVE PRESSURE SIDE OF THE SYSTEM. REGULARLY REPLACE THE FILTER MEDIA, NO LESS THAN ONCE PER WEEK, FOR THE DURATION OF CONSTRUCTION. INSTITUTE DAILY CLEANING ACTIVITIES, SUCH AS USING WETTING AGENTS TO MINIMIZE AIRBORNE

DUSTS. VACUUM CLEAN WITH HEPA FILTERS FOR FINAL CLEANING.

5. MAINTAIN 10 FEET SEPARATION BETWEEN MECHANICAL EXHAUST OUTLETS AND OUTDOOR AIR INTAKES.

6. AIR INTAKE OPENINGS LOCATED OUTDOORS SHALL BE PROTECTED WITH CORROSION-RESISTANT SCREENS, LOUVERS, OR GRILLES

WITH OPENINGS BETWEEN 1/4 INCH AND 1 INCH.

MECHANICAL PIPING NOTES

1. INSTALL PIPING SO THAT ALL VALVES, STRAINERS, UNIONS, TRAPS, AND OTHER APPURTENANCES REQUIRING MAINTENANCE ARE

ACCESSIBLE.

2. SUPPORT PIPING SYSTEMS AND PROTECT AGAINST PHYSICAL DAMAGE AND EXCESSIVE STRESSES IN ACCORDANCE WITH MSS SP-58, PIPE HANGERS AND SUPPORTS - MATERIALS, DESIGN, MANUFACTURE, SELECTION, APPLICATION, AND INSTALLATION.

3. PRESSURE TEST AND CLEAN/FLUSH ALL PIPING BEFORE PUTTING INTO SERVICE.

4. DO NOT ROUTE PIPING OVER ELECTRICAL PANELS, TRANSFORMERS, OR ELECTRICAL EQUIPMENT.

5. PROVIDE PROTECTIVE STEEL SHIELD PLATES PER IMC WHERE CONCEALED PIPING IS INSTALLED NEAR EDGE OF STUDS, JOISTS, RAFTERS, ETC.

MECHANICAL EXISTING CONDITIONS NOTES

1. COORDINATE ALL CONSTRUCTION ACTIVITY WITH THE OWNER OR HIS/HER REPRESENTATIVE TO MINIMIZE DISRUPTION TO BUILDING

OPERATIONS.

2. VISIT THE SITE AND FIELD VERIFY EXISTING CONDITIONS PRIOR TO BEGINNING WORK. COORDINATE WORK WITH EXISTING CONDITIONS.

SUBMIT WRITTEN REQUEST FOR INFORMATION IF ANY DISCREPANCIES OR INTERFERENCES ARE DETECTED.

3. PROTECT ALL EXISTING WORK WHICH IS TO REMAIN IN PLACE. ANY EXISTING WORK TO REMAIN WHICH IS DAMAGED DURING

CONSTRUCTION SHALL BE REPLACED AT NO ADDITIONAL COST TO THE OWNER. THE QUALITY OF REPLACED WORK SHALL MATCH THE

EXISTING CONDITIONS.

4. REMOVE AND REINSTALL OR RELOCATE ANY MOVEABLE OBSTRUCTIONS THAT MAY IMPEDE WORK UNDER THIS CONTRACT. THESE INCLUDE, BUT ARE NOT LIMITED TO EQUIPMENT, PIPING, AND ANY SUPPORTING APPURTENANCES. ANY CONSTRUCTION REQUIRING WORK STATED ABOVE, SHALL BE RECONNECTED AFTER THE END OF CONSTRUCTION TO PROVIDE A FULLY FUNCTIONAL SYSTEM(S), AS

FOUND PRIOR TO COMMENCING CONTRACT WORK.

5. NEW EQUIPMENT PROTRUDES ABOVE THE HIGHEST POINT OF THE BUILDING OR EXISTING BUILDING EQUIPMENT, SUBMIT AN APPLICATION WITH THE FAA TO DETERMINE REQUIREMENTS FOR OBSTRUCTION LIGHTING (REF SECTION 5.8.1).

6. XRAY EXISTING STRUCTURE AND LOCATE REINFORCEMENTS PRIOR TO CORE DRILLING/CUTTING.

7. ALL ROOFING WORK INCLUDING PENETRATIONS SHALL BE BY ONE OF THE FOLLOWING ROOFING CONTRACTORS: COLE ROOFING, RUFF

ROOFERS, CITIROOF, TECTA AMERICA. THE EXISTING ROOF WARRANTY SHALL BE MAINTAINED.

MECHANICAL DEMOLITION NOTES

1. VERIFY THAT SYSTEMS ARE NO LONGER IN SERVICE TO ANY AREAS OUTSIDE THE WORK AREA OF THIS CONTRACT PRIOR TO REMOVAL

OF EQUIPMENT, PIPING AND DUCTWORK.

2. FOR ALL AREAS ADJACENT TO THE CONSTRUCTION SITE THAT WILL REMAIN OCCUPIED MAINTAIN ALL SERVICES (AIR SYSTEMS, SERVICE

PIPING, ETC.) TO THESE AREAS AS INDICATED, AS REQUIRED AND AS DIRECTED BY THE OWNER’S REPRESENTATIVE IN THE FIELD.

3. NOTIFY THE OWNER AT LEAST 7 DAYS IN ADVANCE OF ANY REQUIRED SHUTDOWN OF SERVICE UTILITIES, HVAC SYSTEMS, ETC. UPON

RECEIPT OF APPROVAL FROM THE OWNER, PERFORM SHUTDOWNS ON PREMIUM TIME BETWEEN THE HOURS OF 7 PM AND 7 AM UNLESS

OTHERWISE DIRECTED BY THE OWNER.

4. DISCONNECT EXISTING PIPING AND DUCTS NO LONGER REQUIRED TO REMAIN IN SERVICE AND REMOVE BACK TO PIPE AND DUCT MAINS, INCLUDING ASSOCIATED HANGERS, SUPPORTS, AND AIR DEVICES. CAP EXISTING PIPE AND DUCTS AT EXTENT OF DEMOLITION. DUE TO CONCEALMENT, THE EXTENT OF THE EXISTING DUCTWORK AND PIPING SYSTEMS MAY NOT BE FULLY SHOWN OR MAY DIFFER FROM THAT SHOWN. CONTRACTOR IS RESPONSIBLE FOR REMOVING ALL EQUIPMENT, DUCTWORK, PIPING, HANGERS, INSULATION, CONTROLS, AND APPURTENANCES AS PART OF SYSTEMS INDICATED TO BE REMOVED.

5. PATCH, REPAIR, AND PAINT ALL SURFACES TO MATCH ADJACENT SURFACES NOT SCHEDULED FOR DEMOLITION THAT ARE DAMAGED OR OTHERWISE MARKED DUE TO REMOVAL OF EXISTING EQUIPMENT, DUCTWORK AND RELATED APPURTENANCES.

6. INFILL, PATCH, REPAIR, AND PAINT ALL VOIDS IN WALLS / FLOORS / ROOFS WHERE MECHANICAL SYSTEMS WERE REMOVED. MATCH ADJACENT EXISTING CONSTRUCTION AND MAINTAIN EXISTING FIRE RATINGS WHERE APPLICABLE.

7. PROTECT ALL EQUIPMENT AND MATERIALS WHICH ARE INDICATED TO BE RELOCATED, REUSED, OR SALVAGED THROUGHOUT THE

WORK.

8. CAPTURE AND DISPOSE OF REFRIGERANT PER SECTION 608 OF THE CLEAN AIR ACT.

9. COORDINATE WITH OWNER WHAT EQUIPMENT IS TO BE SALVAGED AND TURN THIS EQUIPMENT OVER TO OWNER. REMOVE EQUIPMENT

TO BE DEMOLISHED FROM SITE AND DISPOSE OF IN ACCORDANCE WITH APPLICABLE REGULATIONS.

HWS

HWR

LINETYPE

SYSTEM

ABBREVIATION

SYSTEM NAME

HOT WATER SUPPLY

HOT WATER RETURN

MECHANICAL SPECIFICATIONS

SECTION 013300 – SUBMITTAL PROCEDURES

1. COORDINATE TRANSMITTAL OF DIFFERENT TYPES OF SUBMITTALS FOR RELATED PARTS OF THE WORK SO PROCESSING WILL NOT

BE DELAYED BECAUSE OF NEED TO REVIEW SUBMITTALS CONCURRENTLY FOR COORDINATION.

2. ALLOW ENOUGH TIME FOR SUBMITTAL REVIEW, INCLUDING TIME FOR RESUBMITTALS. TIME FOR REVIEW SHALL COMMENCE ON THE ENGINEER OF RECORD'S RECEIPT OF SUBMITTAL. NO EXTENSION OF THE CONTRACT TIME WILL BE AUTHORIZED BECAUSE OF FAILURE TO TRANSMIT SUBMITTALS ENOUGH IN ADVANCE OF THE WORK TO PERMIT PROCESSING, INCLUDING RESUBMITTALS.

ALLOW 15 WORKING DAYS FOR REVIEW OF INITIAL SUBMITTAL AND 10 WORKING DAYS FOR RESUBMITTALS.

3. INDICATE NAME AND CONTACT INFORMATION OF FIRM THAT PREPARED EACH SUBMITTAL, NUMBER AND TITLE OF APPROPRIATE SPECIFICATION SECTION, DATE SUBMITTED, AND PROJECT NAME. IF A RESUBMITTAL INDICATE AS SUCH VIA A NUMERICAL SUFFIX

(E.G. REV 2) ASSOCIATED WITH THE NUMBER OF RESUBMISSIONS.

4. MAKE RESUBMITTALS IN THE SAME FORM AND CONTENT AS INITIAL SUBMITTAL, INDICATE EXTENT OF REVISIONS. INDICATE ANY CHANGES TO ORIGINAL CONTENT, ORIGINAL CONTENT WILL NOT BE REVIEWED IN RESUBMITTALS.

5. ORGANIZE AND PACKAGE SUBMITTALS INDIVIDUALLY PER SPECIFICATION NUMBER / SCOPE. SUBMITTALS SHALL BE A COMPLETE PACKAGE PER ASSOCIATED SPECIFICATION SECTION, E.G. DO NOT SUBMIT PARTIAL SUBMITTALS SUCH AS INDOOR DUCT INSULATION SEPARATE FROM OUTDOOR DUCT INSULATION. INDICATE WHICH MATERIALS ARE INTENDED FOR WHICH SYSTEMS, E.G. DIFFERENTIATE CHILLED WATER PIPING INSULATION FROM HOT WATER PIPING INSULATION. DO NOT MIX MATERIALS FROM DIFFERING SPECIFICATION SECTIONS UNDER A COMMON SUBMITTAL SUCH AS COMBINING HYDRONIC PIPING AND DOMESTIC

WATER PIPING.

6. LABEL EQUIPMENT/FIXTURE SUBMITTALS AND CUT SHEETS WITH IDENTIFICATION MARK FROM DESIGN SCHEDULE. ORGANIZE WITH

TABLE OF CONTENTS COVER SHEET.

7. REVIEW EACH SUBMITTAL AND CHECK FOR COORDINATION WITH OTHER WORK OF THE CONTRACT AND FOR COMPLIANCE WITH THE CONTRACT DOCUMENTS. MARK WITH APPROVAL STAMP BEFORE SUBMITTING. STAMP SHALL INCLUDE PROJECT NAME AND LOCATION, SUBMITTAL NUMBER, SPECIFICATION SECTION TITLE AND NUMBER, NAME OF REVIEWER, DATE OF CONTRACTOR'S APPROVAL, AND STATEMENT CERTIFYING THAT SUBMITTAL HAS BEEN REVIEWED, CHECKED, AND APPROVED FOR COMPLIANCE

WITH THE CONTRACT DOCUMENTS.

8. INDICATE ALL SELECTED FEATURES VIA COVER SHEET MEMO, HIGHLIGHTS, OR MARKUPS ON THE SUBMITTAL.

9. IDENTIFY ANY REQUESTED VARIATIONS / SUBSTITUTIONS (WHERE ALLOWED) THAT DO NOT CONFORM WITH THE CONTRACT

DOCUMENTS VIA COVER SHEET MEMO. CHANGE ORDERS ASSOCIATED WITH SUBSTITUTIONS WILL NOT BE APPROVED.

10. PROVIDE SUBMITTALS FOR SCHEDULED EQUIPMENT AND INCLUDE A COVER SHEET MEMO THAT STATES THE NOTES / REMARKS

FROM THE DESIGN SCHEDULE AND INDICATES COMPLIANCE OR REQUESTED VARIANCE FROM EACH REQUIREMENT. SUBMITTALS SHALL BE PROJECT SPECIFIC REGARDING EQUIPMENT PERFORMANCE, ORIENTATION, AND CLEARANCES.

11. IN EACH SUBMITTAL INCLUDE THE FOLLOWING INFORMATION: MANUFACTURER'S WRITTEN RECOMMENDATIONS, MANUFACTURER'S PRODUCT SPECIFICATIONS, MANUFACTURER’S OPERATION AND MAINTENANCE MANUAL, MANUFACTURER'S INSTALLATION INSTRUCTIONS, MANUFACTURER'S CATALOG CUTS, WIRING DIAGRAMS SHOWING FACTORY-INSTALLED WIRING, PRINTED PERFORMANCE CURVES, OPERATIONAL RANGE DIAGRAMS, COMPLIANCE WITH SPECIFIED REFERENCED STANDARDS, TESTING BY RECOGNIZED TESTING AGENCY.

12. PROVIDE SUBMITTALS IN PDF FORMAT THAT CONTAIN REAL TEXT AND ARE SEARCHABLE VIA PDF SOFTWARE.

13. PROVIDE UPDATED SUBMITTAL LOG WITH EACH SUBMITTAL THAT INDICATES STATUS OF EACH SUBMITTAL ORDERED BY

SPECIFICATION SECTION. INCLUDE SUBMITTAL SPECIFICATION NUMBER, NAME, DATES OF SUBMISSION / REVIEW / ACTION, AND

CURRENT STATUS / RESPONSIBLE PARTY.

14. PROVIDE SUBMITTALS FOR ENGINEER’S AND OWNERS REVIEW.

SECTION 230513 - COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

1. COMPLY WITH NEMA MG 1 UNLESS OTHERWISE INDICATED. DUTY: CONTINUOUS DUTY AT AMBIENT TEMPERATURE OF 40 DEG C

AND AT ALTITUDE OF 3300 FEET ABOVE SEA LEVEL

2. POLYPHASE MOTORS: NEMA MG 1, DESIGN B, MEDIUM INDUCTION MOTOR, PREMIUM EFFICIENT, AS DEFINED IN NEMA MG SERVICE

FACTOR: 1.15

SECTION 230519 - METERS AND GAGES FOR HVAC PIPING

1. METAL-CASE, COMPACT-STYLE, LIQUID-IN-GLASS THERMOMETERS. ASME B40.200. CAST ALUMINUM 6 INCH NOMINAL SIZE. TUBE:

GLASS WITH MAGNIFYING LENS AND BLUE ORGANIC LIQUID. ACCURACY: PLUS OR MINUS 1 PERCENT OF SCALE RANGE OR ONE

SCALE DIVISION, TO A MAXIMUM OF 1.5 PERCENT OF SCALE RANGE.

2. DIRECT-MOUNTED, METAL-CASE, DIAL-TYPE PRESSURE GAGES. STANDARD: ASME B40.100. CASE: LIQUID FILLED, 4-1/2 INCH NOMINAL DIAMETER. DIAL: NONREFLECTIVE ALUMINUM WITH PERMANENTLY ETCHED SCALE MARKINGS GRADUATED IN PSI.

ACCURACY: GRADE A, PLUS OR MINUS 1 PERCENT OF MIDDLE HALF OF SCALE RANGE.

3. SNUBBERS: ASME B40.100, BRASS; WITH NPS 1/4 ASME B1.20.1 PIPE THREADS AND PISTON-TYPE SURGE-DAMPENING DEVICE.

INCLUDE EXTENSION FOR USE ON INSULATED PIPING.

4. VALVES: BRASS BALL, WITH NPS 1/4 ASME B1.20.1 PIPE THREADS.

5. INSTALL VALVE AND SNUBBER IN PIPING FOR EACH PRESSURE GAGE FOR FLUIDS.

6. INSTALL PRESSURE GAUGES AT INLET AND OUTLET OF EACH PIECE OF EQUIPMENT WITH A HOT WATER CONNECTION.

7. INSTALL THERMOMETERS AT INLET AND OUTLET OF EACH PIECE OF EQUIPMENT WITH A HOT WATER CONNECTION.

8. ADJUST FACES OF METERS AND GAGES TO PROPER ANGLE FOR BEST VISIBILITY.

SECTION 230529 - HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

1. CARBON-STEEL PIPE HANGERS AND SUPPORTS. DESCRIPTION: MSS SP-58, TYPES 1 THROUGH 58, FACTORY-FABRICATED

COMPONENTS. GALVANIZED METALLIC COATINGS: PREGALVANIZED, HOT-DIP GALVANIZED, OR ELECTRO-GALVANIZED. HANGER

RODS: CONTINUOUS-THREAD ROD, NUTS, AND WASHER MADE OF CARBON STEEL.

2. TRAPEZE PIPE HANGERS. DESCRIPTION: MSS SP-58, TYPE 59, SHOP- OR FIELD-FABRICATED PIPE-SUPPORT ASSEMBLY MADE FROM STRUCTURAL CARBON-STEEL SHAPES WITH MSS SP-58 CARBON-STEEL HANGER RODS, NUTS, SADDLES, AND U-BOLTS.

3. INSULATION-INSERT MATERIAL FOR HOT PIPING. WATER-REPELLENT-TREATED, ASTM C533, TYPE I CALCIUM SILICATE WITH 100-PSI MINIMUM COMPRESSIVE STRENGTH. FOR TRAPEZE OR CLAMPED SYSTEMS: INSERT AND SHIELD SHALL COVER ENTIRE CIRCUMFERENCE OF PIPE. FOR CLEVIS OR BAND HANGERS: INSERT AND SHIELD SHALL COVER LOWER 180 DEGREES OF PIPE.

INSERT LENGTH: EXTEND 2 INCHES BEYOND SHEET METAL SHIELD FOR PIPING OPERATING BELOW AMBIENT AIR TEMPERATURE.

4. DELEGATED DESIGN: DESIGN TRAPEZE PIPE HANGERS AND EQUIPMENT SUPPORTS, INCLUDING COMPREHENSIVE ENGINEERING ANALYSIS PREPARED AND SIGNED AND SEALED BY A QUALIFIED PROFESSIONAL ENGINEER. HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT SHALL WITHSTAND THE EFFECTS OF GRAVITY LOADS AND STRESSES WITHIN LIMITS AND UNDER CONDITIONS INDICATED ACCORDING TO ASCE/SEI 7. DESIGN SUPPORTS FOR MULTIPLE PIPES CAPABLE OF SUPPORTING COMBINED WEIGHT OF SUPPORTED SYSTEMS, SYSTEM CONTENTS, AND TEST WATER. DESIGN EQUIPMENT SUPPORTS CAPABLE OF SUPPORTING COMBINED OPERATING WEIGHT OF SUPPORTED EQUIPMENT AND CONNECTED SYSTEMS AND COMPONENTS.

SECTION 230548.13 - VIBRATION CONTROLS FOR HVAC

1. ELASTOMERIC ISOLATION PADS. SINGLE OR MULTIPLE LAYERS OF SUFFICIENT DUROMETER STIFFNESS FOR UNIFORM LOADING

OVER PAD AREA. PAD MATERIAL: OIL- AND WATER-RESISTANT RUBBER

2. COIL-SPRING AND ELASTOMERIC-INSERT HANGER WITH SPRING AND INSERT IN COMPRESSION. FRAME: STEEL, FABRICATED FOR

CONNECTION TO THREADED HANGER RODS AND TO ALLOW FOR A MAXIMUM OF 30 DEGREES OF ANGULAR HANGER-ROD MISALIGNMENT WITHOUT BINDING OR REDUCING ISOLATION EFFICIENCY. OUTSIDE SPRING DIAMETER: NOT LESS THAN 80 PERCENT OF THE COMPRESSED HEIGHT OF THE SPRING AT RATED LOAD. MINIMUM ADDITIONAL TRAVEL: 50 PERCENT OF THE REQUIRED DEFLECTION AT RATED LOAD. OVERLOAD CAPACITY: SUPPORT 200 PERCENT OF RATED LOAD, FULLY COMPRESSED, WITHOUT DEFORMATION OR FAILURE. ELASTOMERIC ELEMENT: MOLDED, OIL-RESISTANT RUBBER OR NEOPRENE. STEEL-WASHER-

REINFORCED CUP TO SUPPORT SPRING AND BUSHING PROJECTING THROUGH BOTTOM OF FRAME.

SECTION 230553 - IDENTIFICATION FOR EQUIPMENT

1. METAL LABELS FOR EQUIPMENT. ANODIZED ALUMINUM, 0.032-INCH MINIMUM THICKNESS, AND HAVING PREDRILLED OR STAMPED

HOLES FOR ATTACHMENT HARDWARE. FASTENERS: STAINLESS-STEEL RIVETS OR SELF-TAPPING SCREWS.

2. PIPE LABELS: PREPRINTED, COLOR-CODED, WITH LETTERING INDICATING SERVICE, AND SHOWING FLOW DIRECTION ACCORDING

TO ASME A13.1. PRETENSIONED PIPE LABELS: PRECOILED, SEMIRIGID PLASTIC FORMED TO COVER FULL CIRCUMFERENCE OF PIPE

AND TO ATTACH TO PIPE WITHOUT FASTENERS OR ADHESIVE.

3. DUCT LABEL CONTENTS: INCLUDE IDENTIFICATION OF DUCT SERVICE USING SAME DESIGNATIONS OR ABBREVIATIONS AS USED ON DRAWINGS; ALSO INCLUDE DUCT SIZE AND AN ARROW INDICATING FLOW DIRECTION. ADHESIVE: CONTACT-TYPE PERMANENT ADHESIVE, COMPATIBLE WITH LABEL AND WITH SUBSTRATE. MULTILAYER, MULTICOLOR, PLASTIC LABELS FOR MECHANICAL

ENGRAVING.

SECTION 230593 - TESTING, ADJUSTING, AND BALANCING FOR HVAC

1. PROVIDE THE FOLLOWING SUBMITTALS: CERTIFIED TAB REPORT, INSTRUMENT CALIBRATION REPORTS.

2. TAB SPECIALISTS QUALIFICATIONS, CERTIFIED BY NEBB OR TABB. INSTRUMENTATION TYPE, QUANTITY, ACCURACY, AND

CALIBRATION: COMPLY WITH REQUIREMENTS IN ASHRAE 111, SECTION 4, "INSTRUMENTATION. ASHRAE/IES 90.1 COMPLIANCE:

APPLICABLE REQUIREMENTS IN ASHRAE/IES 90.1, SECTION 6.7.2.3 - "SYSTEM BALANCING.”

3. EXAMINE THE CONTRACT DOCUMENTS TO BECOME FAMILIAR WITH PROJECT REQUIREMENTS AND TO DISCOVER CONDITIONS IN SYSTEMS DESIGNS THAT MAY PRECLUDE PROPER TAB OF SYSTEMS AND EQUIPMENT. EXAMINE INSTALLED SYSTEMS FOR BALANCING DEVICES, SUCH AS TEST PORTS, GAUGE COCKS, THERMOMETER WELLS, FLOW-CONTROL DEVICES, BALANCING VALVES AND FITTINGS, AND MANUAL VOLUME DAMPERS. VERIFY THAT LOCATIONS OF THESE BALANCING DEVICES ARE APPLICABLE FOR INTENDED PURPOSE AND ARE ACCESSIBLE. EXAMINE THE APPROVED SUBMITTALS FOR HVAC SYSTEMS AND EQUIPMENT. EXAMINE TEMPORARY AND PERMANENT STRAINERS. VERIFY THAT TEMPORARY STRAINER SCREENS USED DURING SYSTEM CLEANING AND FLUSHING HAVE BEEN REMOVED AND PERMANENT STRAINER BASKETS ARE INSTALLED AND CLEAN.

4. PERFORM TESTING AND BALANCING PROCEDURES ON EACH SYSTEM IN ACCORDANCE WITH THE PROCEDURES CONTAINED IN AABC'S "NATIONAL STANDARDS FOR TOTAL SYSTEM BALANCE" AND IN THIS SECTION. MARK EQUIPMENT AND BALANCING DEVICES, INCLUDING DAMPER-CONTROL POSITIONS, VALVE POSITION INDICATORS, FAN-SPEED-CONTROL LEVERS, AND SIMILAR CONTROLS AND DEVICES, WITH PAINT OR OTHER SUITABLE, PERMANENT IDENTIFICATION MATERIAL TO SHOW FINAL SETTINGS.

SECTION 230713 - DUCT INSULATION

1. PROVIDE THE FOLLOWING SUBMITTALS: PRODUCT DATA, FOR EACH DUCT SYSTEM INDICATE PRODUCT INTENDED FOR USE.

2. INDOOR SUPPLY, RETURN, OUTDOOR-AIR DUCT: MINERAL-FIBER BLANKET, R-6 MINIMUM (BASIS OF DESIGN IS 2.2-INCH THICKNESS).

3. MINERAL-FIBER BLANKET INSULATION: MINERAL OR GLASS FIBERS BONDED WITH A THERMOSETTING RESIN. COMPLY WITH

ASTM C553, TYPE II AND ASTM C1290, TYPE III WITH FACTORY-APPLIED FSK JACKET.

4. MINERAL-FIBER ADHESIVE: COMPLY WITH MIL-A-3316C, CLASS 2, GRADE A. FSK JACKET ADHESIVE: COMPLY WITH MIL-A-3316C, CLASS 2, GRADE A FOR BONDING INSULATION JACKET LAP SEAMS AND JOINTS.

5. VAPOR-RETARDER MASTIC: WATER BASED; SUITABLE FOR INDOOR USE ON BELOW AMBIENT SERVICES. WATER-VAPOR

PERMEANCE: COMPLY WITH ASTM C755, SECTION 7.2.2, TABLE 2, FOR INSULATION TYPE AND SERVICE CONDITIONS.

6. FSK TAPE: FOIL-FACE, VAPOR-RETARDER TAPE MATCHING FACTORY-APPLIED JACKET WITH ACRYLIC ADHESIVE; COMPLYING WITH

ASTM C1136.

7. METAL, ADHESIVELY ATTACHED, PERFORATED-BASE INSULATION HANGERS: BASEPLATE WELDED TO PROJECTING SPINDLE THAT

IS CAPABLE OF HOLDING INSULATION, OF THICKNESS INDICATED, SECURELY IN POSITION INDICATED WHEN SELF-LOCKING WASHER IS IN PLACE. COMPLY WITH THE FOLLOWING REQUIREMENTS. BASEPLATE: PERFORATED, GALVANIZED CARBON-STEEL SHEET, 0.030 INCH THICK BY 2 INCHES SQUARE. SPINDLE: COPPER- OR ZINC-COATED, LOW-CARBON STEEL, FULLY ANNEALED, 0.106-INCH- DIAMETER SHANK, LENGTH TO SUIT DEPTH OF INSULATION INDICATED. ADHESIVE: RECOMMENDED BY HANGER MANUFACTURER. PRODUCT WITH DEMONSTRATED CAPABILITY TO BOND INSULATION HANGER SECURELY TO SUBSTRATES

INDICATED WITHOUT DAMAGING INSULATION, HANGERS, AND SUBSTRATES.

SECTION 230719 - HVAC PIPING INSULATION

1. PROVIDE THE FOLLOWING SUBMITTALS: PRODUCT DATA, FOR EACH PIPE SYSTEM INDICATE PRODUCT INTENDED FOR USE.

2. HOT WATER PIPING: MINERAL-FIBER, PREFORMED PIPE, TYPE I. THICKNESSES PER IECC REQUIREMENTS.

3. MINERAL-FIBER, PREFORMED PIPE: MINERAL OR GLASS FIBERS BONDED WITH A THERMOSETTING RESIN. COMPLY WITH

ASTM C547. PREFORMED PIPE INSULATION: TYPE I, GRADE A WITH FACTORY-APPLIED ASJ. ASJ: WHITE, KRAFT-PAPER, FIBERGLASS- REINFORCED SCRIM WITH ALUMINUM-FOIL BACKING; COMPLYING WITH ASTM C1136, TYPE I. ASJ TAPE: WHITE VAPOR-RETARDER TAPE MATCHING FACTORY-APPLIED JACKET WITH ACRYLIC ADHESIVE, COMPLYING WITH ASTM C1136.

4. MINERAL-FIBER ADHESIVE: COMPLY WITH MIL-A-3316C, CLASS 2, GRADE A. ASJ ADHESIVE AND FSK AND PVDC JACKET ADHESIVE:

COMPLY WITH MIL-A-3316C, CLASS 2, GRADE A, FOR BONDING INSULATION JACKET LAP SEAMS AND JOINTS.

5. STAPLES: OUTWARD-CLINCHING INSULATION STAPLES, NOMINAL 3/4 INCH WIDE, STAINLESS STEEL OR MONEL.

6. VAPOR-RETARDER MASTIC, WATER BASED: SUITABLE FOR INDOOR USE ON BELOW-AMBIENT SERVICES. WATER-VAPOR

PERMEANCE: COMPLY WITH ASTM E96/E96M OR ASTM F1249.

7. INSULATION SHALL BE CONTINUOUS THROUGH WALL AND ROOF PENETRATIONS.

SECTION 230923.11 – CONTROL VALVES

1. DETERMINE CONTROL VALVE SIZES AND FLOW COEFFICIENTS BY ISA 75.01.01. CONTROL VALVE CHARACTERISTICS AND

RANGEABILITY SHALL COMPLY WITH ISA 75.11.01.

2. PRESSURE DROP ACROSS MODULATING CONTROL VALVES AT DESIGN FLOW SHALL BE HALF OF THE TOTAL BRANCH PRESSURE

DROP.

3. BALL VALVES WITH SINGLE PORT AND CHARACTERIZED DISK. BODY AND TAIL PIECE: CAST BRONZE ASTM B61, ASTM B62, ASTM B584, OR FORGED BRASS WITH NICKEL PLATING. FLOW CHARACTERISTIC: EQUAL PERCENTAGE.

4. ACTUATORS FOR HYDRONIC CONTROL VALVES: CAPABLE OF CLOSING VALVE AGAINST SYSTEM PUMP SHUTOFF HEAD. POSITION

INDICATOR AND GRADUATED SCALE ON EACH ACTUATOR. OPERATION: CAPABLE OF STOPPING AT ALL POINTS ACROSS FULL RANGE AND STARTING IN EITHER DIRECTION FROM ANY POINT IN RANGE. INTERNAL SPRING RETURN MECHANISM TO DRIVE

CONTROLLED DEVICE TO AN END POSITION (OPEN OR CLOSE) ON LOSS OF POWER.

SECTION 230923.23 – PRESSURE INSTRUMENTS

1. DUCT INSERTION STATIC PRESSURE SENSOR. SENSOR WITH FOUR RADIAL HOLES OF 0.04-INCH DIAMETER. BRASS OR STAINLESS-

STEEL CONSTRUCTION. SENSOR WITH THREADED END SUPPORT, SEALING WASHERS AND NUTS.

2. LIQUID-PRESSURE DIFFERENTIAL TRANSMITTER. RANGE: APPROXIMATELY 2 TIMES SET POINT. SPAN: ADJUSTABLE PLUS OR MINUS

ONE MILLIAMP, NONINTERACTIVE. ACCURACY: WITHIN 0.25 PERCENT OF FULL SCALE. PRESSURE: MAXIMUM OPERATING PRESSURE

2.5 TIMES RANGE. ALUMINUM AND STAINLESS-STEEL ENCLOSURE WITH REMOVABLE COVER. WETTED PARTS OF TRANSMITTER

CONSTRUCTED OF 17-4 PH OR 300 SERIES STAINLESS STEEL.

SECTION 230923.27 – TEMPERATURE INSTRUMENTS

1. THERMISTOR, SINGLE-POINT DUCT AIR TEMPERATURE SENSORS. PROBE: SINGLE-POINT SENSOR WITH A STAINLESS-STEEL

SHEATH. LENGTH: AS REQUIRED BY APPLICATION TO ACHIEVE TIP AT MIDPOINT OF AIR TUNNEL, UP TO 18 INCHES. ENCLOSURE:

JUNCTION BOX WITH REMOVABLE COVER; NEMA 250, TYPE 1 FOR INDOOR APPLICATIONS AND TYPE 4 FOR OUTDOOR

APPLICATIONS.

2. THERMOWELLS. BRASS OR STAINLESS STEEL FURNISHED WITH HEAT-TRANSFER COMPOUND TO ELIMINATE AIR GAP BETWEEN

WALL OF SENSOR AND THERMOWELL AND TO REDUCE TIME CONSTANT.

SECTION 232113 - HYDRONIC PIPING

1. PROVIDE THE FOLLOWING SUBMITTALS: PRODUCT DATA, FOR EACH PIPE SYSTEM INDICATE PRODUCT INTENDED

FOR USE.

2. ABOVEGROUND HOT-WATER HEATING PIPING: ASTM B88, TYPE L, DRAWN-TEMPER COPPER TUBING, WROUGHT-

COPPER FITTINGS, AND BRAZED JOINTS.

3. FILL SYSTEM WITH FRESH WATER AND ADD LIQUID ALKALINE COMPOUND WITH EMULSIFYING AGENTS AND

DETERGENTS TO REMOVE GREASE AND PETROLEUM PRODUCTS FROM PIPING. CIRCULATE SOLUTION FOR A

MINIMUM OF 24 HOURS, DRAIN, CLEAN STRAINER SCREENS, AND REFILL WITH FRESH WATER.

4. SUBJECT PIPING SYSTEM TO HYDROSTATIC TEST PRESSURE THAT IS NOT LESS THAN 1.5 TIMES THE SYSTEM'S WORKING PRESSURE. TEST PRESSURE SHALL NOT EXCEED MAXIMUM PRESSURE FOR ANY VESSEL, PUMP, VALVE, OR OTHER COMPONENT IN SYSTEM UNDER TEST. VERIFY THAT STRESS DUE TO PRESSURE AT BOTTOM OF VERTICAL RUNS DOES NOT EXCEED 90 PERCENT OF SPECIFIED MINIMUM YIELD STRENGTH OR 1.7 TIMES THE

"SE" VALUE IN APPENDIX A IN ASME B31.9, "BUILDING SERVICES PIPING."

AFTER HYDROSTATIC TEST PRESSURE HAS BEEN APPLIED FOR AT LEAST 10 MINUTES, EXAMINE PIPING, JOINTS, AND CONNECTIONS FOR LEAKAGE. ELIMINATE LEAKS BY TIGHTENING, REPAIRING, OR REPLACING COMPONENTS, AND REPEAT HYDROSTATIC TEST UNTIL THERE ARE NO LEAKS.

SECTION 232116 - HYDRONIC PIPING SPECIALTIES

1. METAL BALL VALVES. BODY: ONE-, TWO-, OR THREE-PIECE BRASS WITH BRASS TRIM. BALL: FULL-PORT BRASS.

SEATS: PTFE. SOLDERED, FLANGED, OR THREADED ENDS TO MATCH PIPING. HANDLE STYLE: QUARTER TURN LEVER. CWP RATING: EQUAL TO PIPING SERVICE. MAXIMUM OPERATING TEMPERATURE: EQUAL TO PIPING

SERVICE.

2. AUTOMATIC FLOW-CONTROL VALVES. BODY: BRASS OR FERROUS METAL. FLOW CONTROL ASSEMBLY: PISTON AND SPRING ASSEMBLY: STAINLESS STEEL, TAMPER PROOF, SELF-CLEANING, AND REMOVABLE. IDENTIFICATION TAG: MARKED WITH ZONE IDENTIFICATION, VALVE NUMBER, AND FLOW RATE. PERFORMANCE: MAINTAIN CONSTANT FLOW WITHIN PLUS OR MINUS 10 PERCENT REGARDLESS OF SYSTEM PRESSURE FLUCTUATIONS.

3. MANUAL AIR VENTS. BODY: BRONZE. OPERATOR: SCREWDRIVER OR THUMBSCREW. CWP RATING: 150.

4. Y-PATTERN STRAINERS. BODY: ASTM A126, CLASS B, CAST IRON WITH BOLTED COVER AND BOTTOM DRAIN

CONNECTION. STRAINER SCREEN: STAINLESS-STEEL, 40-MESH STRAINER, OR PERFORATED STAINLESS-STEEL

BASKET.

5. STAINLESS-STEEL BELLOW, FLEXIBLE CONNECTORS. BODY: STAINLESS-STEEL BELLOWS WITH WOVEN, FLEXIBLE, BRONZE, WIRE-REINFORCING PROTECTIVE JACKET. PERFORMANCE: CAPABLE OF 3/4-INCH MISALIGNMENT. CWP

RATING: 150 PSIG.

SECTION 233113 - METAL DUCTS

1. PROVIDE THE FOLLOWING SUBMITTALS: PRODUCT DATA.

2. DUCT PRESSURE CLASS: SUPPLY: +3”, RETURN: -2”

3. DUCT SEAL CLASS: B

4. DUCT HANGERS AND SUPPORTS SHALL WITHSTAND THE EFFECTS OF GRAVITY LOADS AND STRESSES WITHIN

LIMITS AND UNDER CONDITIONS DESCRIBED IN SMACNA'S "HVAC DUCT CONSTRUCTION STANDARDS - METAL AND

FLEXIBLE.

5. AIRSTREAM SURFACES: SURFACES IN CONTACT WITH AIRSTREAM SHALL COMPLY WITH REQUIREMENTS IN ASHRAE 62.1. ASHRAE COMPLIANCE: APPLICABLE REQUIREMENTS IN ASHRAE 62.1, SECTION 5 - "SYSTEMS AND EQUIPMENT," AND SECTION 7 - "CONSTRUCTION AND SYSTEM STARTUP.” ASHRAE/IES COMPLIANCE: APPLICABLE REQUIREMENTS IN ASHRAE/IES 90.1, SECTION 6.4.4 - "HVAC SYSTEM CONSTRUCTION AND INSULATION.”

6. DUCT DIMENSIONS: UNLESS OTHERWISE INDICATED, ALL DUCT DIMENSIONS INDICATED ON DRAWINGS ARE

INSIDE CLEAR DIMENSIONS AND DO NOT INCLUDE INSULATION OR DUCT WALL THICKNESS.

7. GENERAL FABRICATION REQUIREMENTS: COMPLY WITH SMACNA'S "HVAC DUCT CONSTRUCTION STANDARDS - METAL AND FLEXIBLE" BASED ON INDICATED STATIC-PRESSURE CLASS UNLESS OTHERWISE INDICATED.

8. CONSTRUCT DUCTS OF GALVANIZED SHEET STEEL UNLESS OTHERWISE INDICATED. GALVANIZED SHEET STEEL:

COMPLY WITH ASTM A653/A653M. FOR DUCTS EXPOSED TO WEATHER, CONSTRUCT OF TYPE 304 STAINLESS

STEEL INDICATED BY MANUFACTURER TO BE SUITABLE FOR OUTDOOR INSTALLATION.

9. SOUND LINER. ½ INCH FLEXIBLE ELASTOMERIC DUCT LINER: PREFORMED, CELLULAR, CLOSED-CELL, SHEET MATERIALS COMPLYING WITH ASTM C534/C534M, TYPE II, GRADE 1; AND WITH NFPA 90A OR NFPA 90B.

SECTION 233300 - AIR DUCT ACCESSORIES

1. PROVIDE THE FOLLOWING SUBMITTALS: PRODUCT DATA.

2. DUCT-MOUNTED ACCESS DOORS: FABRICATE ACCESS PANELS IN ACCORDANCE WITH SMACNA'S "HVAC DUCT

CONSTRUCTION STANDARDS - METAL AND FLEXIBLE"; FIGURE 7-2 (7-2M), "DUCT ACCESS DOORS AND PANELS," AND FIGURE 7-3, "ACCESS DOORS - ROUND DUCT. GALVANIZED SHEET METAL WITH INSULATION FILL AND THICKNESS AS INDICATED FOR DUCT PRESSURE CLASS. 24-GAUGE-THICK GALVANIZED STEEL DOOR PANEL.

HINGES AND LATCHES: 1-BY-1-INCH BUTT OR PIANO HINGE AND CAM LATCHES.

3. FLEXIBLE CONNECTORS. FIRE-PERFORMANCE CHARACTERISTICS: ADHESIVES, SEALANTS, FABRIC MATERIALS, AND ACCESSORY MATERIALS SHALL HAVE FLAME-SPREAD INDEX NOT EXCEEDING 25 AND SMOKE-DEVELOPED INDEX NOT EXCEEDING 50 WHEN TESTED IN ACCORDANCE WITH ASTM E84. AIRSTREAM SURFACES: SURFACES IN CONTACT WITH THE AIRSTREAM SHALL COMPLY WITH REQUIREMENTS IN ASHRAE 62.1. COATINGS AND ADHESIVES: COMPLY WITH UL 181, CLASS 1. INDOOR SYSTEM, FLEXIBLE CONNECTOR FABRIC: GLASS FABRIC

DOUBLE COATED WITH NEOPRENE.

FIRE ALARM NOTES

1. ENSURE ALL NEW AIR HANDLER UNITS PROVIDING GREATER THAN 2,000 CFM ARE PROVIDED WITH

DUCT DETECTION ON THE SUPPLY BEFORE THE FIRST OUTLET.

2. ENSURE ALL NEW AIR HANDLER UNITS PROVIDING GREATER THAN 2,000 CFM AND SERVING MORE

THAN ONE SPACE ARE PROVIDED WITH DUCT DETECTION ON THE RETURN.

3. PROVIDE NEW MONITOR MODULES AS REQUIRED OR DIRECTLY TIE INTO THE EXISTING EST-3X FIRE

ALARM SYSTEM. ALL DUCT DETECTION SHALL ACTIVATE SUPERVISORY SIGNALS AT THE PANEL AND ANNUNCIATOR ALONG WITH SHUTTING DOWN THEIR ASSOCIATED AIR HANDLER UNIT AND SENDING A

SIGNAL TO THE REMOTE MONITORING STATION.

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PROFESSIONAL CERTIFICATION. I CERTIFY THAT THESE

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OFFICE

OFFICE

CONFERENCE

OFFICE

SD

FD

FD

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UP

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UP

UP

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B-3

B-21

1-1

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1-16

1-17

1-21

1-23

1-25 1-26 1-27

1-24

1-22

1-20

1-18

1-15

1-14

1-19

1-13

1-10

1-5

1-12

1-9 1-8

1-7

1-2 1-4

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PROJECT NUMBER

SUBMISSION DATE

DRAWN BY

SHEET NAME

SHEET NUMBER

SUBMISSION TYPE

ISSUE FOR CONSTRUCTION

PROFESSIONAL CERTIFICATION. I CERTIFY THAT THESE

DOCUMENTS WERE PREPARED OR APPROVED BY ME,

AND THAT I AM A DULY LICENSED ENGINEER UNDER THE

LAWS OF THE STATE OF MARYLAND,

C D

M S

\R e v it

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M-2

09/30/26

IRS

ELS

MECHANICAL

BASEMENT AND

FIRST FLOOR

PLANS

00048875_002

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1/8" = 1'-0"1

MECHANICAL BASEMENT

1/8" = 1'-0"2

MECHANICAL FIRST FLOOR PLAN

KEYED NOTES

1 REMOVE AND REPLACE EXISTING VAV TERMINAL UNDER ADD/ALTERNATE.

4'0 8' 16'2' 4'0 8' 16'2'

1/8" = 1'-0"1/8" = 1'-0"

GENERAL NOTES:

1. EXISTING CONDITIONS WERE COPIED FROM DRAWINGS PROVIDED BY

OWNER, DATED 06/18/04 AND WERE NOT FIELD VERIFIED IN THEIR

ENTIRETY.

2. AS PART OF ADD/ALTERNATE, PROVIDE CLEANING OF PIPING AND

DUCTWORK WITHIN +/- FIVE FEET OF EACH VAV TERMINAL THAT IS

REPLACED.

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CONFERENCE

ROOM

CLASSROOM

C.B.

WOMEN'S

TOILET

CLASSROOM

MEETING

ROOM

BALCONY

LOUNGE

CLASSROOM

CORRIDOR

ROOF ACCESS

416A

JAN

412A

CHEMICAL

STORAGE

CORRIDOR

PREP

ROOM

CLASSROOM

CLASSROOM

C.B.

LAB TECH

OFFICE

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STORAGE

BALANCE

ROOM

STORAGE 424

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CLG MTD

PROJ.

STAIR

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BIOLOGY

LAB

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PROGRAM

LAB

C.B.

OFFICE

HALL

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CLOSET

CLOSET

430A

HALL

TEL/

ELEC.

C.B.P.S.

ROOF ACCESS

416A

C.B.

CLASSROOM

P.S.

C.B.

C.B.

C.B.

STAIR

B4

HWS

HWR

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H W S

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H W S

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H W R

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HWR

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4-7

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4-3

4-2

4-1

4-5

4-6

4-9

4-12

4-14

4-19

4-18 4-17

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PROJECT NUMBER

SUBMISSION DATE

DRAWN BY

SHEET NAME

SHEET NUMBER

SUBMISSION TYPE

ISSUE FOR CONSTRUCTION

PROFESSIONAL CERTIFICATION. I CERTIFY THAT THESE

DOCUMENTS WERE PREPARED OR APPROVED BY ME,

AND THAT I AM A DULY LICENSED ENGINEER UNDER THE

LAWS OF THE STATE OF MARYLAND,

C D

M S

\R e v it

P ro je c ts

\A A

C C

A m il- M

E P

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.S tu rg e o n

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Q .r v t

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09/30/26

IRS

ELS

MECHANICAL

FOURTH AND ROOF

PLANS -

DEMOLITION

00048875_002

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1/8" = 1'-0"1

MECHANICAL FOURTH PLAN DEMOLITION

1/8" = 1'-0"2

MECHANICAL ROOF PLAN DEMOLITION

KEYED NOTES

1 REMOVE EXISTING DUCTWORK TO EXTENT NECESSARY FOR REMOVAL OF EXISTING RTU AND

RECONNECTION TO RTU PROVIDED UNDER NEW WORK.

2 REMOVE EXISTING HOT WATER SUPPLY AND RETURN PIPING TO EXTENT INDICATED. ENSURE

ALL VALVES AND TRIM ASSOCIATED IS REPLACED.

3 REMOVE EXISTING RTU. NEW RTU TO BE INSTALLED ON EXISTING CURB/SUPPORTS.

4 REMOVE AND REPLACE EXISTING VAV TERMINAL UNDER ADD/ALTERNATE.

4'0 8' 16'2' 4'0 8' 16'2'

1/8" = 1'-0"1/8" = 1'-0"

GENERAL NOTES:

1. EXISTING CONDITIONS WERE COPIED FROM DRAWINGS PROVIDED BY

OWNER, DATED 06/18/04 AND WERE NOT FIELD VERIFIED IN THEIR

ENTIRETY.

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CLASSROOM

CLOSET

409A

CLASSROOM

CONFERENCE

ROOM

CLASSROOM

C.B.

WOMEN'S

TOILET

CLASSROOM

MEETING

ROOM

BALCONY

LOUNGE

CLASSROOM

CORRIDOR

ROOF ACCESS

416A

JAN

412A

CHEMICAL

STORAGE

CORRIDOR

PREP

ROOM

CLASSROOM

CLASSROOM

C.B.

LAB TECH

OFFICE

P.S.

STORAGE

BALANCE

ROOM

STORAGE 424

STAIR

A4

PROGRAM

CLASSROOM

CLG MTD

PROJ.

STAIR

B4

BIOLOGY

LAB

PHYSICAL

SCIENCE LAB

P.S.

C.B.

PROGRAM

LAB

C.B.

OFFICE

HALL

I.T.

CLOSET

CLOSET

430A

HALL

TEL/

ELEC.

C.B.P.S.

ROOF ACCESS

416A

C.B.

CLASSROOM

P.S.

C.B.

C.B.

C.B.

STAIR

B4

HWS

HWR

H W R

H W S

H W R

H W S

H W S

H W R

HWR

HWS

H W S

H W R

D

HWS

HWR

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RS

HWS

HWR

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RS

RG

T

T

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T T T

T

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4-9

4-12

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PROJECT NUMBER

SUBMISSION DATE

DRAWN BY

SHEET NAME

SHEET NUMBER

SUBMISSION TYPE

ISSUE FOR CONSTRUCTION

PROFESSIONAL CERTIFICATION. I CERTIFY THAT THESE

DOCUMENTS WERE PREPARED OR APPROVED BY ME,

AND THAT I AM A DULY LICENSED ENGINEER UNDER THE

LAWS OF THE STATE OF MARYLAND,

C D

M S

\R e v it

P ro je c ts

\A A

C C

A m il- M

E P

R

Ie s h a

.S tu rg e o n

M

V

Q .r v t

M-4

09/30/26

IRS

ELS

MECHANICAL

FOURTH AND ROOF

PLANS - NEW WORK

00048875_002

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1/8" = 1'-0"1

MECHANICAL FOURTH PLAN NEW WORK

1/8" = 1'-0"2

MECHANICAL ROOF PLAN NEW WORK

KEYED NOTES

1 EXTEND DUCTWORK FROM RTU AND CONNECT TO EXISTING DUCTWORK AS INDICATED.

2 EXTEND HOT WATER SUPPLY AND RETURN PIPING TO CONNECT TO EXISTING HOT WATER

SYSTEM.

4'0 8' 16'2' 4'0 8' 16'2'

1/8" = 1'-0"1/8" = 1'-0"

GENERAL NOTES:

1. EXISTING CONDITIONS WERE COPIED FROM DRAWINGS PROVIDED BY

OWNER, DATED 06/18/04 AND WERE NOT FIELD VERIFIED IN THEIR

ENTIRETY.

2. RTUS SHALL BE INSTALLED ON EXISTING ROOF CURBS AND SUPPORTS.

PROVIDE CURB ADAPTERS AS NECESSARY TO PROPERLY INSTALL THE

UNITS AND PROVIDE MEANS FOR DUCTS TO TRANSITION FROM EXISTING

ROOF OPENINGS TO NEW UNIT CONNECTION POINTS.

3. PROVIDE CLEANING OF DUCTWORK AND PIPING +/- TEN FEET UP AND

DOWNSTREAM OF RTUS.

4. PROVIDE POST-CONSTRUCTION TAB IN ACCORDANCE WITH SPECIFICATION

SECTION 230593.

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DRAWN BY

SHEET NAME

SHEET NUMBER

SUBMISSION TYPE

ISSUE FOR CONSTRUCTION

PROFESSIONAL CERTIFICATION. I CERTIFY THAT THESE

DOCUMENTS WERE PREPARED OR APPROVED BY ME,

AND THAT I AM A DULY LICENSED ENGINEER UNDER THE

LAWS OF THE STATE OF MARYLAND,

C D

M S

\R e v it

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\A A

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A m il- M

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IRS

ELS

MECHANICAL

SCHEDULES

00048875_002

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13. UNITS IN SCHEDULE IS BASIS OF DESIGN. ACCEPTABLE MANUFACTURERS ARE YORK, CARRIER, TRANE, AND INNOVENT.

12. PROVIDE MERV 13 FILTERS.

11. PROVIDE UNIT WITH CONDENSER BASE PAN, STRENTHENING OF THE CONDENSER SECTION WITH WELDED REINFORCEMENT OF A CONDENSER BASE RAIL AS WELL AS WELDED INTEGRAL SUPPORTS TO THE CONDENSER BASE TO ALLOW REUSE OF EXISTING PEDESTAL SUPPORTS.

10. TWO ENTHALPY SENSORS SHALL BE PROVIDED TO COMPARE TOTAL HEAT CONTENT OF INDOOR AND OUTDOOR AIR TO DETERMINE THE MOST EFFICIENT AIR SOURCE WHEN IN ECONOMIZER MODE.

9. ECONOMIZER OPTION SHALL BE OPERATED THROUGH THE PRIMARY TEMPERATURE CONTROLS. AUTOMATICALLY MODULATED RETURN AND OUTSIDE AIR DAMPERS SHALL MAINTAIN PROPER TEMPERATURE IN THE CONDITIONED SPACE. ECONOMIZER SHALL BE EQUIPPED WITH AN AUTOMATIC LOCKOUT WHEN THE OUTDOOR HIGH AMBIENT TEMPERATURE LIMIT IS EXCEEDED. MECHANICAL COOLING SHALL BE AVAILABLE TO AID THE ECONOMIZER MODE. PROVIDE ECONOMIZER WITH LOW LEAK DAMPERS.

8. THE RELIEF DISCHARGE DAMPERS SHALL BE MODULATED IN RESPONSE TO BUILDING PRESSURE. A DIFFERENTIAL PRESSURE CONTROL SYSTEM SHALL USE A DIFFERENTIAL PRESSURE TRANSDUCER TO COMPARE INDOOR BUILDING PRESSURE TO OUTDOOR AMBIENT ATMOSPHERIC PRESSURE.

7. MODULATING RETURN (RELIEF) FAN SHALL HAVE TWO DOUBLE INLET, FORWARD CURVED FANS MOUNTED ON A COMMON SHAFT WITH A FIXED SHEAVE DRIVE. FANS SHALL BE DYNAMICALLY BALANCED AND TESTED IN FACTORY BEFORE BEING INSTALLED IN UNIT.ENTIRE ASSMEBLY SHALL BE

COMPLETELY ISOLATED FROM THE UNIT AND FAN BOARD BY SPRING ISOLATION.

6. SUPPLY FANS SHALL HAVE TWO INDEPENDENT FAN ASSEMBLIES WITH DOUBLE INLET, FORWARD-CURVED AIR FOIL FAN, MOTOR AND FIXED PITCH SHEAVE DRIVE. FANS SHALL BE STATICALLY AND DYNAMICALLY BALANCED AND TESTED IN THE FACTORY. FAN MOTOR AND ASSEMBLY SHALL BE MOUNTED ON A COMMON BASE TO ALLOW CONSISTENT BELT TENSION WITH NO RELATIVE MOTION BETWEEN FAN AND MOTOR SHAFTS. ENTIRE ASSEMBLY SHALL BE COMPLETELY ISOLATED FROM THE UNIT AND FAN BOARD BY 2-INCH DEFLECTION SPRING ISOLATORS.

5. CONDENSER FANS SHALL BE VERTICAL DISCHARGE, DIRECT DRIVE FANS WITH ALUMINUM BLADES AND ZINC PLATED STEEL HUBS. MOTORS SHALL BE THREE PHASE WITH PERMANENTLY LUBRICATED BALL BEARINGS, BUILT-IN CURRENT AND THERMAL OVERLOAD PROTECTION AND WEATHER-TIGHT

SLINGERS OVER MOTOR BEARINGS.

4. COMPRESSORS SHALL BE INDUSTRIAL GRADE, DIRECT DRIVE, SCROLL TYPE.

3. EXTERIOR PANELS HALL BE ZINC-COATED, GALVANIZED STEEL, PAINTED WITH A SLATE GRAY AIR-DRY FINISH DURABLE ENOUGH TO WITHSTAND A MINIMUM OF 672 HOURS CONSECUTIVE SALT SPRAY APPLICATION IN ACCORDANCE WITH ASTM B117.

2. UNIT SHALL BE FURNISHED WITH A LEAK DETECTION SYSTEM FROM THE FACTORY CONSISTING OF ONE OR MORE REFRIGERANT DETECTION SENSORS. WHEN THE SYSTEM DETECTS A LEAK, THE UNIT CONTROLLER SHALL INITIATE MITIGATION ACTIONS.

1. UNITS TO BE DESIGNED FOR OUTDOOR ROOFTOP INSTALLATION ON A ROOF CURB AND BE COMPLETELY FACTORY ASSEMBLED AND TESTED, PIPED, INTERNALLY WIRED, FULLY CHARGED WITH R-454B COMPRESSOR OIL, FACTORY RUN TESTED AND SHIPPED IN ONE PIECE.

NOTES:

RTU-4 4TH FLOOR 27,000 2.25 20,290 1.25 6,710 26,000 1122.2 826.0 81.6 67.2 53.6 53.5 414.1 41.4 228.9 250 460 / 3 / 60 423.75 x 143.63 x 81.38 15,930 TRANE SLHRC904

RTU-1 BASEMENT AND 1ST FLOOR 33,500 2.50 31,890 1.50 4,500 26,000 1131.2 931.0 80.1 65.7 54.8 54.5 380.0 38.0 260.6 300 460 / 3 / 60 423.75 x 143.63 x 81.38 15,930 TRANE SLHRC904

DESIGN

(CFM)

ESP

(IN)

DESIGN

(CFM)

ESP

(IN)

TOTAL SENSIBLE DB WB DB WB CAPACITY (MBH) GPM MCA MOCP V / PH / HZ MANUFACTURER MODEL

SUPPLY AIR RETURN AIR MINIMUM

OUTSIDE

AIR

(CFM)

ECONOMIZER RELIEF AIR (CFM)

CAPACITY (MBH) EAT (°F) LAT (°F)

DESIGNATION SERVICE

AIRFLOW DX COOLING COIL

HOT WATER HEATING COIL ELECTRICAL

OVERALL DIMENSIONS EXCLUDING CURB (IN)

WEIGHT

(LBS)

BASIS OF DESIGN

PACKAGED VAV ROOFTOP UNIT SCHEDULE

1-27 SERIES 10 1200 360 35 67 94.0 0.4 3.5 180 160 WATER 8.0 2 12 277 - 1 - 60 TRANE VSXG

1-26 SERIES 10 1200 360 35 66 92.5 0.4 3.5 180 160 WATER 8.0 2 12 277 - 1 - 60 TRANE VSXG

1-25 SERIES 10 1170 350 35 66 93.2 0.4 3.5 180 160 WATER 8.0 2 12 277 - 1 - 60 TRANE VSXG

1-24 SERIES 12 1850 555 70…