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MECHANICAL
<br />DESIGN CRITERIA
<br />ASHRAE STD. 62.1
<br />- 2007 VENTILATION CALUCATIONS
<br />LIFE SAFETY
<br />GENERAL NOTES
<br />1.
<br />EXISTING HVAC SYSTEM IS TO REMAIN UNALTERED.
<br />NET AREA = 6,742 SF
<br />FIRE DAMPER
<br />2.
<br />CONNECTION TO EQUIPMENT SHALL BE VERIFIED WITH MANUFACTURER'S CERTIFIED
<br />OUTSIDE AIR DESIGN
<br />CRITERIA: SUMMER - 92T DB / 77T WB
<br />(WITH ACCESS PANEL)
<br />DRAWINGS. TRANSITIONS TO ALL EQUIPMENT SHALL BE VERIFIED AND PROVIDED
<br />OCCUPANT DENSITY @ 2 5 / 10 0 0 s f = 169 Occupants
<br />WINTER - 36T DB
<br />FOR EQUIPMENT FURNISHED.
<br />PEOPLE OUTDOOR AIRFLOW
<br />RATE IN BREATHING ZONE =
<br />10 CFM /PERSON DAY CARE = 1690 CFM
<br />SUMMER INSIDE DESIGN
<br />CRITERIA: 75' DB f 2'F
<br />FIRE
<br />(WITH ACCESSMOKS PANEL)
<br />(
<br />3.
<br />DIMENSIONS SHALL BE FIELD -VERIFIED AND COORDINATED PRIOR TO PROCUREMENT
<br />OR FABRICATION. COORDINATE THE WORK WITH OTHER TRADES INVOLVED. FIELD
<br />MIN. AREA OUTDOOR AIRFLOW RATE IN BREATHING ZONE
<br />= 0.18 CFM/SF = 1214 CFM
<br />50% RH t 7.5%
<br />MODIFICATIONS SUCH AS OFFSETS IN PIPING OR DUCTWORK (INCLUDING DIVIDED
<br />WINTER INSIDE DESIGN CRITERIA: 70T DB t 2'EF
<br />®
<br />EXISTING FIRE DAMPER TO REMAIN UNLESS
<br />DUCTWORK) NEEDED DUE TO OBSTRUCTIONS OR INTERFERENCES SHALL BE
<br />MIN. EXHAUST AIRFLOW
<br />RATE F 0 R DAY CARE = N /A
<br />50X RH f 10�
<br />OTHERWISE NOTED (WITH ACCESS PANEL)
<br />PROVIDED AT NO ADDITIONALNEW WORK WITH
<br />BUILD NGTSTRUCTUREATE
<br />ELEMENTS SUCH AS AND ARCHITECTURXISTING
<br />AL FEATURES,
<br />MIN. EXHAUST AIRFLOW
<br />RATE FOR TOILET ROOMS = 5 0
<br />CFM PER W C (continuous operation)
<br />EXHAUST AIR VENTILATION RATE: TOILET ROOM 50 CFM/WC
<br />®
<br />EXISTING FIRE & SMOKE DAMPER TO REMAIN
<br />SPRINKLER PIPING, LIGHTS, PLUMBING, AND ELECTRICAL CONDUIT.
<br />EXHAUST AIRFLOW RATE
<br />PROVIDED =
<br />UNLESS OTHERWISE NOTED (WITH ACCESS PANEL)
<br />4.
<br />DUCT CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE LATEST EDITION OF THE
<br />350 CFM AT TOILET ROOMS + 400 CFM AT HOOD EXHAUST FAN = 750 CFM TOTAL EXHAUST
<br />DUCT SMOKE DETECTOR
<br />sMACNA HVAC DUCT CONSTRUCTION STANDARD.
<br />5.
<br />PROVIDE AIR TURNING VANES IN ALL 90 DEGREE RECTANGULAR DUCT ELBOWS.
<br />EQUIPMENT
<br />DUCTWORK
<br />6.
<br />DUCT SIZES AND ALL OPENINGS THROUGH BUILDING CONSTRUCTION SHALL SUIT
<br />AIRBALANCE
<br />SCHEDULE
<br />EQUIPMENT FURNISHED.
<br />24x12
<br />NEW DUCTWORK, FIRST DIMENSION IS SIDE SHOWN
<br />7.
<br />COORDINATE DIFFUSER, GRILLE, AND REGISTER LOCATIONS WITH ARCHITECTURAL
<br />REFLECTED CEILING PLANS AND EQUIPMENT OF ALL TRADES.
<br />Supply A I r Return Air
<br />EXISTING MIXING BOX
<br />PROVIDE EXTERNALLY INSULATED SHEETMETAL DUCT
<br />8.
<br />LOCATE THERMOSTATS, TEMPERATURE SENSORS, HUMIDISTATS, AND HUMIDITY
<br />Open Daycare Area
<br />1,500 CFM 300 x 7 =
<br />2,10 0 CFM
<br />DUCT ELBOW, POSITIVE PRESSURE (SUPPLY)
<br />LOCASENSTIONS WITHS AT " ABOVE DOOR SWINGS, FINISHEDFLOORCOORDINATE
<br />RE, AND 01HERDEQUIPM EQUIPMENT.
<br />Group Toilet Room
<br />150 CFM 50 x 6 =
<br />300 CFM Exhaust
<br />EXISITING VAV UNIT
<br />DOWN UP
<br />9.
<br />ALL EQUIPMENT, DUCTWORK, ETC., SHALL BE SUPPORTED AS DETAILED ND/OR
<br />Staff Toilet Room
<br />5 0 x 1 =
<br />5 0 CFM Exhaust
<br />DUCT ELBOW, NEGATIVE PRESSURE (EXHAUST)
<br />ONE SUPPORTS AS REQUIRED TO PROVIDE A
<br />DOWN UP
<br />VIBRATION -FREE, TION-FREEwRIGIDDINS
<br />Lunch Room
<br />350 CFM
<br />DUCT ELBOW, NEGATIVE PRESSURE (RETURN)
<br />10.
<br />ALL DUCT SIZES SHOWN ARE INSIDE CLEAR DIMENSIONS.
<br />Food Service
<br />400 x 1 =
<br />400 CFM Exhaust
<br />11.
<br />DAMPERS AND INSIDES OF DUCTS VISIBLE THROUGH GRILLES, REGISTERS, AND
<br />Office
<br />100 CFM
<br />UP
<br />�- DN -
<br />CHANGE OF ELEVATION
<br />DIFFUSERS SHALL BE PAINTED FLAT BLACK.
<br />Outside Air Intake
<br />750 CFM
<br />GENERAL
<br />12.
<br />REFER TO TYPICAL DETAILS FOR PIPING AND INSTALLATION OF EQUIPMENT.
<br />FLEXIBLE DUCT
<br />2,850 CFM 2,850
<br />CFM
<br />13.
<br />ACCESS PANELS IN DUCTWORK AND CEILINGS SHALL BE PROVIDED WHERE
<br />Q
<br />REVISION REFERENCE
<br />TRANSITION, CONCENTRIC
<br />REQUIRED FOR OPERATION, BALANCING, OR MAINTENANCE OF ALL MECHANICAL
<br />EQUIPMENT.
<br />t
<br />DETAIL REFERENCE: TOP - DETAILS;
<br />TRANSITION, ECCENTRIC
<br />14.
<br />ALL DUCTWORK AND PIPING IS SHOWN SCHEMATICALLY. PROVIDE ALL TRANSITIONS,
<br />w-t
<br />BOTTOM - DRAWING# SHOWN ON
<br />1Ox8
<br />TRANSITION, ARE TOR N D
<br />TURNING VANES, ELBOW, FITTINGS, ETC. TO ALLOW SMOOTH FLOWS. ALL SPLIT
<br />DUCT FITTINGS SHALL TRANSITION TO FULL SIZE OF THE SUM OF BOTH BRANCHES
<br />QO
<br />NEUTRAL RELATIVE PRESSURE
<br />SQUARE THROAT ELBOW
<br />UPSTREAM OF SPLIT.
<br />+0
<br />POSITIVE RELATIVE PRESSURE
<br />W/TURNING VANES
<br />15.
<br />VERIFY FINISH WITH ARCHITECT PRIOR TO PURCHASING GRILLES, REGISTERS,
<br />DIFFUSERS, LOUVERS, AND OTHER AIR DISTRIBUTION DEVICES.
<br />®
<br />NEGATIVE RELATIVE PRESSURE
<br />16.
<br />INTERRUPTIONS TO EXITING SERVICES SHALL BE SCHEDULED FOR TIMES OTHER
<br />��--�
<br />—
<br />SHEET NOTE CALLOUT
<br />RADIUS ELBOW
<br />THAN NORMAL OPERATING HOURS (SUCH AS NIGHTS AND WEEKENDS). SUCH
<br />INTERRUPTIONS TO SERVICES SHALL NOT BE MADE WITHOUT THE PRIOR WRITTEN
<br />SHEET NOTE CALLOUT
<br />CONSENT OF THE OWNER'S REPRESENTATIVE AND PROPER COORDINATION WITH
<br />SHEET NOTE CALLOUT
<br />RECTANGULAR/ROUND BRANCH TAKE -OFF
<br />OR ROUND/ROUND BRANCH TAKE -OFF
<br />OTHER TRADES. PRE -WORK SHALL BE PERFORMED TO MAKE THE SHUTDOWN
<br />PERIOD AS BRIEF AS POSSIBLE.
<br />17.
<br />PROVIDE TRANSITIONS AT DIFFUSER NECKS AS REQUIRED TO MATCH SIZES OF FLEX
<br />DUCTS TO BE CONNECTED.
<br />18.
<br />ALL EQUIPMENT, DUCTWORK, ETC. TO BE REMOVED SHALL REMAIN PROPERTY OF
<br />CONTROLS
<br />DUCT
<br />A C C E SO R I E S
<br />THE OWNER OR DISPOSED OF LEGALLY AS DIRECTED BY OWNER.
<br />19.
<br />MAINTAIN CLEARANCE OF A MINIMUM OF 6" BETWEEN DUCTWORK, PIPING,
<br />THERMOSTAT/TEMPERATURE SENSOR
<br />EQUIPMENT, ETC. AND ALL FIRE RATED AND FIRE/SMOKE RATED PARTITIONS TO
<br />r�SA
<br />SOUND ATTENUATOR
<br />ALLOW FOR INSPECTIONS OF RATED WALLS.
<br />®
<br />HUMIDISTAT/HUMIDITY SENSOR
<br />20.
<br />DUCT RUNOUTS TO DIFFUSERS SHALL MATCH THE SIZE OF THE DIFFUSE NECK.
<br />MOTORIZED CONTROL DAMPER
<br />MOTOR OPERATED CONTROL DAMPER (M00)
<br />TEMPERATURE SENSOR
<br />PD—
<br />PRESSURE SENSOR
<br />JFMJ
<br />AIR FLOW MEASURING STATION
<br />MANUAL BALANCING DAMPER
<br />®
<br />ACCESS DOORS, VERTICAL OR HORIZONTAL
<br />>r�lll
<br />FLEXIBLE CONNECTION
<br />LIFE
<br />SAFETY WALL LEGEND
<br />CFM SENSOR
<br />1 HOUR RATED WALL
<br />AF
<br />2 HOUR RATED WALL
<br />BACKDRAFT DAMPER
<br />1 HOUR FIRE SMOKE RATED WALL
<br />ER
<br />2 HOUR FIRE SMOKE RATED WALL
<br />SMOKE BARRIER
<br />RENOVATION
<br />HVAC DUCTWORK
<br />SCHEDULE
<br />AIR DISTRIBUTION
<br />�—�
<br />CONNECT TO EXISTING
<br />TYPE/LOCATION
<br />SUPPLY AIR
<br />RETURN AIR
<br />EXHAUST AIR
<br />OUTSIDE AIR
<br />•
<br />�---
<br />DEMOLISH TO POINT INDICATED
<br />QTY-i
<br />[-TAG
<br />9
<br />ABOVE CEILING
<br />SHEET METAL
<br />SHEET METAL
<br />SHEET METAL
<br />SHEET METAL
<br />SINGLE WALL
<br />SINGLE WALL
<br />2A(100) AIR DISTRIBUTION DEVICE - SUPPLY
<br />24x12
<br />NEW DUCTWORK TO BE PROVIDED
<br />EXT. FIBERGLASS WRAP
<br />EXT. FIBERGLASS WRAP
<br />NON -INSULATE
<br />NON -INSULATED
<br />L (�
<br />EXPOSED (MECH. ROOM)
<br />METAL
<br />EET METAL
<br />SHEET METAL
<br />SINGLE WALL
<br />SHEET METAL
<br />SINGLE WALL
<br />QTY-1 TAG
<br />24x12 EXISTING DUCTWORK TO REMAIN
<br />EXT. FIBERBOARD
<br />EXTEET
<br />. FIBERBOARD
<br />NON -INSULATE
<br />NON -INSULATED
<br />AIR DISTRIBUTION DEVICE - RETURN / EXHAUST
<br />28(100) F-1
<br />EXPOSED
<br />ROUND OR OVAL
<br />SHEET METAL
<br />ROUND OR OVAL
<br />SHEET METAL
<br />SHEET METAL
<br />SINGLE WALL
<br />SHEET METAL
<br />SINGLE WALL
<br />�,�/%� EXISTING DUCTWORK TO BE REMOVED
<br />L_CN
<br />(OCCUPIED AREAS)
<br />DOUBLE WALL
<br />DOUBLE WALL
<br />NON-INSULA
<br />NON -INSULATED
<br />CWS
<br />NEW PIPING TO BE PROVIDED
<br />NOTES.
<br />- i - DOOR GRILLE -SEE ARCH DWG
<br />1. FOR GENERAL DUCTWORK CONSTRUCTION
<br />ONLY. SEE PLANS FOR INDIVIDUAL CASES.
<br />--DGf j
<br />CWS
<br />EXISTING PIPING TO REMAIN
<br />CWS
<br />EXISTING PIPING TO BE REMOVED
<br />UNDERCUT DOOR -SEE ARCH DWG
<br />EXISTING RELOCATED DIFFUSER
<br />Fo_1
<br />Fo_1EXISTING RELOCATED GRILLE
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<br />MECHANICAL
<br />NOTES
<br />Revisions:
<br />Date:
<br />12-29-17
<br />Drawn by.
<br />CTK
<br />Checked by.
<br />CTK
<br />PERMIT SET
<br />M-2
<br />Sheet No. of
<br />
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