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NORTH ARROW
<br />N
<br />1
<br />M-5
<br />DETAIL IDENTIFICATION NUMBER
<br />SHEET ON WHICH DETAIL IS
<br />DRAWN
<br />A
<br />M-5
<br />SECTION OR ELEVATION IDENTIFICATION
<br />LETTER
<br />SHEET ON WHICH SECTION OR ELEVATION IS
<br />DRAWN
<br />EQUIPMENT ABBREVIATION (SEE
<br />ABBREVIATION LIST)
<br />EQUIPMENT NUMBER
<br />AC
<br />1
<br />REVISION CLOUD
<br />#
<br />#
<br />#KEYNOTE
<br />REVISION
<br />#
<br />POINT OF CONNECTION (POC)
<br />POINT OF DISCONNECTION (POD)
<br />NEW WORK LINETYPE
<br />EXISTING WORK LINETYPE
<br />DEMOLITION WORK LINETYPE
<br />DUCT SECTION, SUPPLY
<br />(POSITIVE)
<br />DUCT SECTION, RETURN
<br />(NEGATIVE)
<br />DUCT SECTION, EXHAUST
<br />(NEGATIVE)
<br />DIRECTION OF FLOW
<br />DUCT SIZE, WHERE FIRST DIMENSION IS
<br />VISIBLE DUCT
<br />24"X12"
<br />CHANGE OF ELEVATION; RISE (R) / DROP (D)R
<br />DUCTWORK, DOUBLE LINE
<br />ACOUSTICAL LINED DUCTWORK, DOUBLE
<br />LINE. SIZE IS NET INSIDE DIMENSION
<br />FLEX DUCT / FLEXIBLE EQUIPMENT
<br />CONNECTION, DOUBLE LINE
<br />DUCTWORK, SINGLE LINE
<br />ACOUSTICAL LINED DUCTWORK, SINGLE LINE.
<br />SIZE IS NET INSIDE DIMENSION
<br />FLEX DUCT, SINGLE LINE
<br />CEILING SUPPLY DIFFUSER, 4-WAY BLOW
<br />PATTERN
<br />CEILING SUPPLY DIFFUSER, 3-WAY BLOW
<br />PATTERN
<br />CEILING RETURN REGISTER
<br />CEILING EXHAUST GRILL
<br />CD-1
<br />200 AIR INLET/OUTLET IDENTIFICATION
<br />DIFFUSER/REGISTER NUMBER
<br />AIRFLOW QUANTITY
<br />DOOR UNDERCUT
<br />1 INCH UC
<br />100 CFM
<br />UNDERCUT SIZE
<br />AIRFLOW QUANTITY
<br />GENERAL NOTESMECHANICAL ABBREVIATIONS
<br />- A -
<br />AAV AUTOMATIC AIR VENT
<br />ABV ABOVE
<br />AD ACCESS DOOR
<br />AFF ABOVE FINISHED FLOOR
<br />AHU AIR HANDLING UNIT
<br />AI ANALOG INPUT
<br />ALUM ALUMINUM
<br />AO ANALOG OUTPUT
<br />AP ACCESS PANEL
<br />AS AIR SEPARATOR
<br />- B -
<br />B BOILER
<br />BDD BACK DRAFT DAMPER
<br />BEL BELOW
<br />BFC BELOW FINISHED CEILING
<br />BFP BACK FLOW PREVENTER
<br />BHP BRAKE HORSEPOWER
<br />BLDG BUILDING
<br />BOB BOTTOM OF BEAM
<br />BOP BOTTOM OF PIPE
<br />BTU BRITISH THERMAL UNIT
<br />- C -
<br />CD CEILING DIFFUSER
<br />CFM CUBIC FEET PER MINUTE
<br />CH CHILLER
<br />CHWP CHILLED WATER PUMP
<br />CHWR CHILLED WATER RETURN
<br />CHWS CHILLED WATER SUPPLY
<br />CL CENTER LINE
<br />CLG CEILING
<br />CP CONDENSATE PUMP
<br />CT COOLING TOWER
<br />CU CONDENSING UNIT
<br />CV CONDENSATE VOLUME BOX
<br />CWP CONDENSER WATER PUMP
<br />CWR CONDENSER WATER RETURN
<br />CWS CONDENSER WATER SUPPLY
<br />- D -
<br />D DEMOLISH
<br />DB DRY BULB
<br />DEG DEGREES
<br />DI DIGITAL INPUT
<br />DIA DIAMETER
<br />DL DOOR LOUVER
<br />DN DOWN
<br />DO DIGITAL OUPUT
<br />DP DIFFERENTIAL PRESSURE
<br />DS DUCT SILENCER
<br />DWP DOMESTIC WATER PUMP
<br />DX DIRECT EXPANSION
<br />- E -
<br />EA EACH
<br />EAT ENTERING AIR TEMPERATURE
<br />EC ELECTRICAL CONTRACTOR
<br />EF EXHAUST FAN
<br />EFF EFFICIENCY
<br />EL ELEVATION
<br />EQ EQUAL
<br />ER EXHAUST REGISTER
<br />ESP EXTERNAL STATIC PRESSURE
<br />ET EXPANSION TANK
<br />EWT ENTERING WATER TEMPERATURE
<br />EXIST / (E)EXISTING
<br />- F -
<br />°F DEGREES FARENHEIT
<br />FA FREE AREA
<br />FC FAN COIL UNIT
<br />FD FIRE DAMPER
<br />FG FILTER GRILLE
<br />FLA FULL LOAD AMPS
<br />FLR FLOOR
<br />FOB FLAT ON BOTTOM
<br />FOT FLAT ON TOP
<br />FPI FINS PER INCH
<br />FPM FEET PER MINUTE
<br />FS FLOW SWITCH
<br />FT FEET / FOOT
<br />-G -
<br />GA GAUGE
<br />GALV GALVANIZED
<br />GC GENERAL CONTRACTOR
<br />GPH GALLONS PER HOUR
<br />GPM GALLONS PER MINUTE
<br />- H -
<br />HD HEAD
<br />HP HEAT PUMP
<br />HP HORSEPOWER
<br />HWP HOT WATER PUMP
<br />HWR HOT WATER RETURN
<br />HWS HOT WATER SUPPLY
<br />HX HEAT EXCHANGER
<br />HZ HERTZ
<br />MECHANICAL SYMBOLS
<br />MECHANICAL SHEET INDEX
<br />APPLICABLE CODES
<br />CALIFORNIA CODES ENFORCED THE AUTHORY HAVING
<br />JURISDICTION:
<br />A. 2022 CALIFORNIA BUILDING CODE.
<br />B. 2022 CALIFORNIA MECHANICAL CODE.
<br />C. 2022 CALIFORNIA PLUMBING CODE.
<br />D. 2022 CALIFORNIA ELECTRICAL CODE.
<br />E. 2022 GREEN BUILDING CODE.
<br />F. 2022 CALIFORNIA BUILDING ENERGY EFFICIENCY STANDARD
<br />FOR NONRESIDENTIAL COMPLIANCE.
<br />G. NFPA STANDARDS APPLICABLE TO PROJECT.
<br />1. FLEXIBLE DUCT NO MORE THAN 5 FEET IN LENGTH MAY BE
<br />USED TO CONNECT SUPPLY, AIR TERMINAL DEVICES TO RIGID
<br />DUCT SYSTEMS. AN INTERNAL IMPERVIOUS LINER SHALL BE
<br />PROVIDED TO ISOLATE INSULATION MATERIAL FOR
<br />CONDITIONED AIR. SECTION 602.6.1 OF THE 2019 CMC
<br />2. MATERIALS EXPOSED WITHIN DUCTS OR PLENUMS SHALL BE
<br />NONCOMBUSTIBLE OR SHALL HAVE A FLAME-SPREAD INDEX
<br />NOT GREATER THAN TWENTY FIVE (25) AND A SMOKE
<br />DEVELOPED INDEX NOT GREATER THAN FIFTY (50) WHEN
<br />TESTED AS COMPOSITE PER APPLICABLE TESTING STANDARD.
<br />3. CONTRACTOR TO PROVIDE MANUFACTURER'S FIELD
<br />FABRICATION AND INSTALLATION INSTRUCTION FOR ALL DUCT
<br />SUPPORT. SECTION 603.8 OF THE 2019 CMC.
<br />4. BALANCING AND ADJUSTING: ALL AIR SYSTEMS SHALL BE
<br />ADJUSTED BY AN INDEPENDENT BALANCING CONTRACTOR
<br />THAT IS A MEMBER OF THE ASSOCIATED AIR BALANCING
<br />COUNCIL(AABC) . SUBMIT BALANCE REPORT TO UNIVERSITY
<br />PRIOR TO RECEIVING FINAL PAYMENT. ADDITIONAL BALANCING
<br />DAMPERS AND/OR PULLEY CHANGES SHALL BE PROVIDED AS
<br />REQUIRED TO BALANCE SYSTEMS, AT NO INCREASE IN
<br />CONTRACT PRICE.
<br />5. AIR BALANCING CONTRACTOR TO COORDINATE WITH
<br />CONTROLS CONTRACTOR FOR ADJUSTING AIR SYSTEM
<br />INCLUDING BUT NOT LIMITED TO ALL SUPPLY, RETURN AND
<br />EXHAUST FANS TO MAINTAIN PROPER AIR BALANCE. PROVIDE
<br />AIR BALANCE REPORT TO VERIFY THE PROPER AMOUNT OF
<br />OUTSIDE AIR TO COMPLY WITH 2019 CMC, BEFORE THE
<br />APPROVAL OF THIS PROJECT.
<br />6. EQUIPMENT SHALL BE SECURELY FASTENED TO VIBRATION
<br />ISOLATORS AND SEISMIC RESTRAINTS PER CALIFORNIA
<br />BUILDING CODE REQUIREMENTS.
<br />7. ANCHORAGE AND SUPPORTING STRUCTURAL ELEMENTS FOR
<br />AIR DUCTS AND PIPING SHALL BE DESIGNED TO WITHSTAND
<br />THE LATERAL FORCES AS REQUIRED BY THE CALIFORNIA
<br />BUILDING CODE, CALIFORNIA MECHANICAL CODE AND SMACNA.
<br />8. WORKMANSHIP: THE WORK SHALL BE ACCOMPLISHED IN A
<br />THOROUGH AND WORKMAN-LIKE MANNER SATISFACTORY TO
<br />AND MEETING THE APPROVAL OF THE UNIVERSITY.
<br />9. MATERIALS: ALL MATERIALS, APPLIANCES AND EQUIPMENT
<br />SHALL BE NEW AND THE BEST OF THEIR RESPECTIVE KIND,
<br />FREE FROM ALL DEFECTS AND OF THE MAKE, BRAND AND
<br />QUALITY SPECIFIED.
<br />10. AS-BUILTS: CONTRACTOR SHALL PROVIDE A COMPLETE SET
<br />OF AS-BUILT FULL SIZE BLACK-LINE PRINTS WITH ALL CHANGES
<br />NOTED THEREON AT THE COMPLETION OF THE PROJECT AND
<br />PRIOR TO FINAL ACCEPTANCE AND PAYMENT.
<br />11. SUBMITTALS: CATALOG INFORMATION, EQUIPMENT CUT
<br />SHEETS AND LISTING OF ALL MECHANICAL EQUIPMENT,
<br />COMPONENTS AND DEVICES SHALL BE SUBMITTED FOR
<br />REVIEW (PDF FORMAT) INCLUDING PERFORMANCE DATA. ALL
<br />SHALL BE LABELED AND IDENTIFIED PROPERLY.
<br />12. BEFORE STARTING ANY WORK, THE CONTRACTOR FOR THIS
<br />SECTION OF THE WORK SHALL EXAMINE A COMPLETE SET OF
<br />DRAWINGS FOR ALL TRADES, INCLUDING ARCHITECTURAL,
<br />HVAC, ELECTRICAL, FIRE PROTECTION, STRUCTURAL, CIVIL
<br />AND PLUMBING. DIMENSIONS, SPACE REQUIREMENTS AND
<br />POINTS OF CONNECTION TO ALL EQUIPMENT SHALL BE
<br />VERIFIED, AND ANY MINOR ADJUSTMENTS NECESSARY TO
<br />AVOID CONFLICT WITH THE BUILDING STRUCTURE AND THE
<br />WORK OF THE OTHER TRADES SHALL BE MADE.
<br />13. ALL EXHAUST DUCTWORK SHALL BE SOLID SHEET METAL.
<br />-I -
<br />ICW INDUSTRIAL COLD WATER
<br />ID INSIDE DIAMETER
<br />IN INCHES
<br />IW INDIRECT WASTE
<br />-L -
<br />LAT LEAVING AIR TEMPERATURE
<br />LBS POUNDS
<br />LD LINEAR DIFFUSER
<br />LF LINEAR FEET
<br />LWT LEAVING WATER TEMPERATURE
<br />-M -
<br />MAX MAXIMUM
<br />MBH THOUSAND BTU PER HOUR
<br />MC MECHANICAL CONTRACTOR
<br />MCA MINIMUM CIRCUIT AMPACITY
<br />MIN MINIMUM
<br />MOCP MAXIMUM OVERCURRENT
<br />PROTECTION DEVICE
<br />MUA MAKE UP AIR
<br />-N -
<br />NIC NOT IN CONTRACT
<br />NPSHR NET POSITIVE SUCTION PRESSURE
<br />REQUIRED
<br />-O -
<br />OAT OUTSIDE AIR TEMPERATURE
<br />OBD OPPOSED BLADE DAMPER
<br />OC ON CENTER
<br />OD OUTSIDE DIAMETER
<br />OSA OUTSIDE AIR
<br />-P -
<br />PD PRESSURE DROP
<br />PH PHASE
<br />PR PRESSURE RELIEF
<br />PRV PRESSURE REDUCING VALVE
<br />PS PRESSURE SWITCH
<br />PSID POUNDS PER SQUARE INCH,
<br />DIFFERENTIAL
<br />PSIG POUNDS PER SQUARE INCH, GAUGE
<br />PT PRESSURE TRANSMITTER
<br />PTAC PACKAGED TERMINAL AIR
<br />CONDITIONER
<br />-R -
<br />RA RETURN AIR
<br />RAG RETURN AIR GRILLE
<br />RAR RETURN AIR REGISTER
<br />RF RETURN FAN
<br />RH RELATIVE HUMIDITY
<br />RHC REHEAT COIL
<br />RLA RATED LOAD AMPS
<br />RPM REVOLUTIONS PER MINUTE
<br />-S -
<br />SA SUPPLY AIR
<br />SAR SUPPLY AIR REGISTER
<br />SD SMOKE DAMPER
<br />SF SUPPLY FAN
<br />SP STATIC PRESSURE
<br />SPEC SPECIFICATION
<br />SS STAINLESS STEEL
<br />STD STANDARD
<br />-T -
<br />TAD TRANSFER AIR DUCT
<br />TDH TOTAL DYNAMIC HEAD
<br />TEFC TOTALLY ENCLOSED FAN COOLED
<br />TEMP TEMPERATURE
<br />TG TRANSFER GRILLE
<br />TI TEMPERATURE INDICATOR
<br />TSP TOTAL STATIC PRESSURE
<br />TYP TYPICAL
<br />-U -
<br />UC UNDERCUT
<br />UH UNIT HEATER
<br />UON UNLESS OTHERWISE NOTED
<br />-V -
<br />V VOLTS
<br />VAV VARIABLE AIR VOLUME
<br />VD VOLUME DAMPER
<br />VFD VARIABLE FREQUENCY DRIVE
<br />VTR VENT THROUGH ROOF
<br />-W -
<br />W/WITH
<br />W/O WITHOUT
<br />WB WET BULB
<br />WC WATER COLUMN
<br />WG WATER GAUGE
<br />CAL GREEN BUILDING NOTES
<br />1. THE PERMANENT HVAC SYSTEM SHALL ONLY BE USED DURING
<br />CONSTRUCTION IF NECESSARY TO CONDITION THE BUILDING OR
<br />AREAS OF ADDITION OR ALTERATION WITHIN THE REQUIRED
<br />TEMPERATURE RANGE FOR MATERIAL AND EQUIPMENT
<br />INSTALLATION. IF THE HVAC SYSTEM IS USED DURING
<br />CONSTRUCTION, USE RETURN AIR FILTERS WITH A MINIMUM
<br />EFFICIENCY REPORTING VALUE (MERV) OF 8, OR AN AVERAGE
<br />EFFICIENCY OF 30 PERCENT. REPLACE ALL FILTERS IMMEDIATELY
<br />PRIOR TO OCCUPANCY, OR, IF THE BUILDING IS OCCUPIED DURING
<br />ALTERATION, AT THE CONCLUSION OF CONSTRUCTION. (CGBC
<br />SECTION: 5.504.1, LATEST EDITION)
<br />2. AT THE TIME OF ROUGH INSTALLATION AND DURING STORAGE ON THE
<br />CONSTRUCTION SITE UNTIL FINAL STARTUP OF THE HEATING,
<br />COOLING AND VENTILATING EQUIPMENT, ALL DUCT AND OTHER
<br />RELATED AIR DISTRIBUTION COMPONENT OPENINGS SHALL BE
<br />COVERED WITH TAPE, PLASTIC, SHEET METAL OR OTHER METHODS
<br />ACCEPTABLE TO THE ENFORCING AGENCY TO REDUCE THE AMOUNT
<br />OF DUST, WATER AND DEBRIS WHICH MAY ENTER THE SYSTEM.
<br />(CGBC SECTION: 5.504.3, LATEST EDITION)
<br />3. IN MECHANICALLY VENTILATED BUILDINGS, PROVIDE REGULARLY
<br />OCCUPIED AREAS OF THE BUILDING WITH AIR FILTRATION MEDIA FOR
<br />OUTSIDE AND RETURN AIR THAT PROVIDES AT LEAST A MINIMUM
<br />EFFICIENCY REPORTING VALUE (MERV) OF 13. MERV 13 FILTERS
<br />SHALL BE INSTALLED PRIOR TO OCCUPANCY, AND
<br />RECOMMENDATIONS FOR MAINTENANCE WITH FILTERS OF THE SAME
<br />VALUE SHALL BE INCLUDED IN THE OPERATION AND MAINTENANCE
<br />MANUAL. (CGBC SECTION: 5.504.5.3, LATEST EDITION)
<br />4. EXCEPTION TO CGBC SECTION: 5.504.5.3: AN ASHRAE 10-PERCENT TO
<br />15-PERCENT EFFICIENCY FILTER SHALL BE PERMITTED FOR AN HVAC
<br />UNIT MEETING THE 2019 CALIFORNIA ENERGY CODE HAVING 60,000
<br />BTU/H OR LESS CAPACITY PER FAN COIL, IF THE ENERGY USE OF THE
<br />AIR DELIVERY SYSTEM IS 0.4 W/CFM OR LESS AT DESIGN AIR FLOW.
<br />5. INSTALLED FILTERS SHALL BE CLEARLY LABELED BY THE
<br />MANUFACTURER INDICATING THE MERV RATING. (CGBC SECTION:
<br />5.504.5.3.1, LATEST EDITION)
<br />6. WHERE OUTDOOR AREAS ARE PROVIDED FOR SMOKING, PROHIBIT
<br />SMOKING WITHIN 25 FEET OF BUILDING ENTRIES, OUTDOOR AIR
<br />INTAKES AND OPERABLE WINDOWS AND WITHIN THE BUILDING AS
<br />ALREADY PROHIBITED BY OTHER LAWS OR REGULATIONS; OR AS
<br />ENFORCED BY ORDINANCES, REGULATIONS OR POLICIES OF ANY
<br />CITY, COUNTY, CITY AND COUNTY, CALIFORNIA COMMUNITY COLLEGE,
<br />CAMPUS OF THE CALIFORNIA STATE UNIVERSITY, OR CAMPUS OF THE
<br />UNIVERSITY OF CALIFORNIA, WHICHEVER ARE MORE STRINGENT.
<br />WHEN ORDINANCES, REGULATIONS OR POLICIES ARE NOT IN PLACE,
<br />POST SIGNAGE TO INFORM BUILDING OCCUPANTS OF THE
<br />PROHIBITIONS. (CGBC SECTION: 5.504.7, LATEST EDITION)
<br />7. FOR MECHANICALLY OR NATURALLY VENTILATED SPACES IN
<br />BUILDINGS, MEET THE MINIMUM REQUIREMENTS OF SECTION 120.1
<br />(REQUIREMENTS FOR VENTILATION) OF THE 2019 CALIFORNIA ENERGY
<br />CODE, OR THE APPLICABLE LOCAL CODE, WHICHEVER IS MORE
<br />STRINGENT, AND DIVISION 1, CHAPTER 4 OF CCR, TITLE 8. (CGBC
<br />SECTION: 5.506.1, LATEST EDITION)
<br />8. FOR BUILDINGS OR ADDITIONS EQUIPPED WITH DEMAND CONTROL
<br />VENTILATION, CO2 SENSORS AND VENTILATION CONTROLS SHALL BE
<br />SPECIFIED AND INSTALLED IN ACCORDANCE WITH THE
<br />REQUIREMENTS OF 2019 CALIFORNIA ENERGY CODE, SECTION
<br />120.1(C)(4). (CGBC SECTION: 5.506.2, LATEST EDITION)
<br />9. DEVELOP A WRITTEN PLAN OF PROCEDURES FOR TESTING AND
<br />ADJUSTING SYSTEMS. SYSTEMS TO BE INCLUDED FOR TESTING AND
<br />ADJUSTING SHALL INCLUDE HVAC SYSTEMS AND CONTROLS. (CGBC
<br />SECTION: 5.410.4.2, LATEST EDITION)
<br />10. AFTER COMPLETION OF TESTING, ADJUSTING AND BALANCING,
<br />PROVIDE A FINAL REPORT OF TESTING SIGNED BY THE INDIVIDUAL
<br />RESPONSIBLE FOR PERFORMING THESE SERVICES. (CGBC SECTION:
<br />5.410.4.4, LATEST EDITION)
<br />11. PROVIDE THE UNIVERSITY'S REPRESENTATIVE WITH DETAILED
<br />OPERATING AND MAINTENANCE INSTRUCTIONS AND COPIES OF
<br />GUARANTIES/WARRANTIES FOR EACH SYSTEM. O & M INSTRUCTIONS
<br />SHALL BE CONSISTENT WITH OSHA REQUIREMENTS IN CCR, TITLE 8,
<br />SECTION 5142, AND OTHER RELATED REGULATIONS. (CGBC SECTION:
<br />5.410.4.5, LATEST EDITION)
<br />12. INCLUDE A COPY OF ALL INSPECTION VERIFICATIONS AND REPORTS
<br />REQUIRED BY THE ENFORCING AGENCY. (CGBC SECTION: 5.410.4.5.1,
<br />LATEST EDITION)
<br />13. PERFORM TESTING AND ADJUSTING PROCEDURES IN ACCORDANCE
<br />WITH MANUFACTURER'S SPECIFICATIONS AND APPLICABLE
<br />STANDARDS ON EACH SYSTEM. (CGBC SECTION: 5.410.4.3, LATEST
<br />EDITION)
<br />14. IN ADDITION TO TESTING AND ADJUSTING, BEFORE A NEW SPACE-
<br />CONDITIONING SYSTEM SERVING A BUILDING OR SPACE IS OPERATED
<br />FOR NORMAL USE, BALANCE THE SYSTEM IN ACCORDANCE WITH THE
<br />PROCEDURES DEFINED BY THE TESTING ADJUSTING AND BALANCING
<br />BUREAU NATIONAL STANDARDS; ASSOCIATED AIR BALANCE COUNCIL
<br />NATIONAL STANDARDS OR AS APPROVED BY THE ENFORCING
<br />AGENCY. (CGBC SECTION: 5.410.4.3.1, LATEST EDITION)
<br />15. DUCT AND PLENUM MATERIALS.
<br />1. FACTORY-FABRICATED DUCT SYSTEM.
<br />A. ALL FACTORY-FABRICATED DUCT SYSTEMS SHALL COMPLY WITH UL
<br />181 FOR DUCTS AND CLOSURE SYSTEMS, INCLUDING COLLARS,
<br />CONNECTIONS AND SPLICES, AND BE LABLED AS COMPLYING WITH UL
<br />181.UL 181 TESTING MAY BE PERFORMED BY UL LABORATORIES OR A
<br />LABORATORY APPROVED BY THE EXECUTIVE DIRECTOR.
<br />B. ALL PRESSURE-SENSITIVE TAPES, HEAT-ACTIVATED TAPES, AND
<br />MASTICS USED IN THE MANUFACTURE OF RIGID FIBERGLASS DUCTS
<br />SHALL COMPLY WITH UL 181 AND UL 181A.
<br />C. ALL PRESSURE-SENSITIVE TAPES AND MASTICS USED WITH FLEXIBLE
<br />DUCTS SHALL COMPLY WITH UL 181 AND UL 181B.
<br />D. ALL DUCTWOR AND PLENUMS WITH PRESSURE CLASS RATINGS
<br />SHALL BE CONSTRUCTED TO SEAL CLASS A.JOINTS AND SEAMS OF
<br />DUCT SYSTEMS AND THEIR COMPONENTS SHALL NOT BE SEALED
<br />WITH CLOTH-BACK RUBBER ADHESIVE DUCT TAPES UNLESS SUCH
<br />TAPE IS USED IN COMBINATION WITH MASTIC AND DRAWBANDS.
<br />EXCEPTION TO SECTION 120.4(b)1D: DUCTWORK LOCATED IN
<br />OCCUPIED SPACE AND EXPOSED TO VIEW IS NOT REQUIRED TO MEET
<br />SEAL CLASS A.
<br />SCOPE OF WORK
<br />• PROVIDE NEW HVAC SYSTEM BASED ON SPLIT SYSTEM HEAT
<br />PUMP UNITS.
<br />• PROVIDE NEW AIR DISTRIBUTION BASED ON NEW FLOOR PLAN
<br />LAYOUT
<br />• PROVIDE NEW EXHAUST FAN FOR NEW RESTROOMS
<br />1. DUCT AND PLENUM MATERIALS.
<br />1. FACTORY-FABRICATED DUCT SYSTEM.
<br />a. ALL FACTORY-FABRICATED DUCT SYSTEMS SHALL COMPLY
<br />WITH UL 181 FOR DUCTS AND CLOSURE SYSTEMS, INCLUDING
<br />COLLARS, CONNECTIONS AND SPLICES, AND BE LABLED AS
<br />COMPLYING WITH UL 181.UL 181 TESTING MAY BE PERFORMED
<br />BY UL LABORATORIES OR A LABORATORY APPROVED BY THE
<br />EXECUTIVE DIRECTOR.
<br />b. ALL PRESSURE-SENSITIVE TAPES, HEAT-ACTIVATED TAPES,
<br />AND MASTICS USED IN THE MANUFACTURE OF RIGID
<br />FIBERGLASS DUCTS SHALL COMPLY WITH UL 181 AND UL 181A.
<br />c. ALL PRESSURE-SENSITIVE TAPES AND MASTICS USED WITH
<br />FLEXIBLE DUCTS SHALL COMPLY WITH UL 181 AND UL 181B.
<br />d. ALL DUCTWOR AND PLENUMS WITH PRESSURE CLASS RATINGS
<br />SHALL BE CONSTRUCTED TO SEAL CLASS A.JOINTS AND
<br />SEAMS OF DUCT SYSTEMS AND THEIR COMPONENTS SHALL
<br />NOT BE SEALED WITH CLOTH-BACK RUBBER ADHESIVE DUCT
<br />TAPES UNLESS SUCH TAPE IS USED IN COMBINATION WITH
<br />MASTIC AND DRAWBANDS.
<br />EXCEPTION TO SECTION 120.4(b)1D: DUCTWORK LOCATED IN
<br />OCCUPIED SPACE AND EXPOSED TO VIEW IS NOT REQUIRED TO
<br />MEET SEAL CLASS A.
<br />2. DUCTSEALING.DUCT SYSTEMS SHALL COMPLY WITH SUBSECTION
<br />1 OR 2 BELOW:
<br />
<br />1. NEW DUCT SYSTEMS THAT MEET THE CRITERIA IN SUBSECTIONS
<br />A,B,C AND D BELOW SHALL BE SEALED TO A LEAKAGE RATE NOT
<br />TO EXCEED 6 PERCENT OF THE NOMINAL AIR HANDLER AIRFLOW
<br />RATE AS CONFIRMED THROUGH HERS FIELD VERIFICATION AND
<br />DIAGNOSTIC TESTING, IN ACCORDANCE WITH REFERENCE
<br />NONRESIDENTIAL APPENDIX NA7.5.3;
<br />a. THE DUCT SYSTEM DOES NOT SERVE A HEALTHCARE FACILITY;
<br />AND
<br />b. THE DUCT SYSTEM PROVIDES CONDITIONED AIR TO AN
<br />OCCUPIABLE SPACE FOR CONSTANT VOLUME, SINGLE ZONE,
<br />SPACE-CONDITIONING SYSTEMS; AND
<br />c. THE SPACE-CONDITIONING SYSTEM SERVES LESS THAN 5,000
<br />SQUARE FEET OF CONDITIONED FLOOR AREA; AND
<br />d. THE COMBINED SURFACE AREA OF THE DUCT LOCATED
<br />OUTDOORS OR IN UNCONDITIONED SPACE IS MORE THAN 25
<br />PERCENT OF THE TOTAL SURFACE AREA OF THE ENTIRE DUCT
<br />SYSTEM.
<br />
<br />2. NEW DUCT SYSTEMS THAT ARE NOT SUBJECT TO TESTING
<br /> UNDER SECTION 120.4(g)1 SHALL INSTEAD MEET THE DUCT
<br /> LEAKAGE TESTING REQUIREMENTS OF CMC SECTION 603.9.2.
<br />3. OCCUPANT SENSOR VENTILATION CONTROL DEVICES.
<br />OCCUPANT SENSING OR VENTILATION CONTROLS ARE REQUIRED
<br />FOR SPACE-CONDITIONING ZONES THAT ARE BOTH PERMITTED TO
<br />HAVE THEIR VENTILATION AIR REDUCED TO ZERO WHILE IN
<br />OCCUPIED-STANDBY MODE PER TABLE 120.1-A AND REQUIRED TO
<br />INSTALL OCCUPANT SENSORS TO COMPLY WITH SECTION
<br />130.1(c)5,6 AND 7. OCCUPANT SENSOR VENTILATION CONTROL
<br />DEVICES USED TO REDUCE THE RATE OF OUTDOOR AIR FLOW WHEN
<br />OCCUPANTS ARE NOT PRESENT SHALL COMPLY WITH THE
<br />FOLLOWING:
<br />a. OCCUPANT SENSORS SHALL HAVE SUITABLE COVERAGE AND
<br />PLACEMENT TO DETECT OCCUPANTS IN THE ENTIRE SPACE
<br />VENTILATED. IN 20 MINUTES OR LESS AFTER NO OCCUPANCY IS
<br />DETECTED BY ANY SENSORS COVERING THE ROOM, OCCUPANT
<br />SENSING CONTROLS SHALL INDICATE A ROOM IS VACANT.
<br />b. WHEN OCCUPANT SENSORS CONTROLLING LIGHTING ARE ALSO
<br />USED FOR VENTILATION, THE VENTILATION SIGNAL SHALL BE
<br />INDEPENDENT OF DAYLIGHTING, MANUAL LIGHTING OVERRIDES
<br />OR MANUAL CONTROL OF LIGHTING.
<br />c. WHEN A SINGLE ZONE DAMPER OR A SINGLE ZONE SYSTEM
<br />SERVES MULTIPLE ROOMS, THERE SHALL BE AN OCCUPANT
<br />SNSOR IN EACH ROOM AND THE ZONE SHALL NOT BE
<br />CONSIDERED VACANT UNTIL ALL ROOMS IN THE ZONE ARE
<br />VACANT.
<br />d. ONE HOUR PRIOR TO NORMAL SCHEDULED OCCUPANCY, THE
<br />OCCUPANT SENSOR VENTILATION CONTROL SHALL ALLOW PRE-
<br />OCCUPANCY PURGE AS DESCRIBED IN SECTION 120.1(d)2.
<br />e. WHEN THE ZONE IS SCHEDULED TO BE OCCUPIED AND
<br />OCCUPANT SENSING CONTROLS IN ALL ROOMS AND AREAS
<br />SERVED BY THE ZONE INDICATE THE SPACES ARE UNOCCUPIED,
<br />THE ZONE SHALL BE PLACED IN OCCUPIED-STANDBY MODE.
<br />f. IN 5 MINUTES OR LESS AFTER ENTERING OCCUPIED-STANDBY
<br />MODE, MECHANICAL VENTILATION TO THE ZONE SHALL BE SHUT
<br />OFF UNTIL THE SPACE BECOMES OCCUPIED OR UNTIL
<br />VENTILATION IS NEEDED TO PROVIDE SPACE HEATING OR
<br />CONDITIONING. WHEN MECHANICAL VENTILATION IS SHUTT OFF
<br />TO THE ZONE, THE VENTILATION SYSTEM SERVING THE ZONE
<br />SHALL REDUCE THE SYSTEM OUTSIDE AIR RATE BY THE AMOUNT
<br />OF OUTSIDE AIR REQUIRED FOR THE ZONE.
<br />g. WHERE THE SYSTEM PROVIDING SPACE CONDITIONING ALSO
<br />PROVIDES VENTILATION TO THE ZONE, IN 5 MINUTES OR LESS
<br />AFTER ENTERING OCCUPIED-STANDBY MODE, SPACE-
<br />CONDITIONING ZONE SETPOINTS SHALL BE RESET IN
<br />ACCORDANCE WITH SECTION 120.2(e)3.
<br />PLAN CHECK NOTES
<br />Scale
<br />Project number
<br />Date
<br />Drawn by
<br />Jen Dunbar, AIA
<br />phone: 310.435.3928
<br />12314 La Maida Street
<br />Valley Village, CA 91607
<br />jen@dunbararchitecture.com
<br />DUNBAR
<br />ARCHITECTURE
<br />As indicated
<br />4/
<br />4
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<br />2
<br />0
<br />2
<br />5
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<br />1
<br />1
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<br />4
<br />3
<br />
<br />A
<br />M
<br />M0.1
<br />MECHANICAL
<br />COVER SHEET
<br />23004
<br />CYPRESS STREET
<br />FIRE STATION
<br />REHABILITATION
<br />CITY OF SANTA ANA
<br />1/15/2025
<br />RM/EG
<br />625 S. CYPRESS
<br />NO.NAME
<br />M0.1 MECHANICAL COVER SHEET
<br />M0.2 MECHANICAL SCHEDULES
<br />M1.0 MECHANICAL ZONING PLAN
<br />M2.0 MECHANICAL NEW FLOOR PLAN
<br />M3.0 MECHANICAL NEW ROOF PLAN
<br />M4.1 MECHANICAL DETAILS
<br />M4.2 MECHANICAL DETAILS
<br />M5.0 TITLE 24
<br />M5.1 TITLE 24
<br />M5.2 TITLE 24
<br />M5.3 TITLE 24
<br />No. Description Date
<br />1 75% CD 3/15/2024
<br />2 90% CD 5/02/2024
<br />3 PERMIT SET 5/17/2024
<br />4 BACK CHECK SET 1/15/2025
<br />5 BACK CHECK SET_V2 4/08/2025
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