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Home My WebLink AboutM001 HVAC AbbreviationsSYMBOLS / ABBREVIATIONS THERMOSTAT OT MOTORIZEO DAMPER � � SHEETMETALDUCTWIDTHBVDEPTH W�� LINEDSHEETMETALDUCTFREEAREAWIDTH _W�p _ BY DEPTH. SQUARE SHEET METAL 90 PROVIDE WITH I / I DOUBLETHICKNESSTURNINGVANES. LJ RADIUS SHEET METAL 90, R=1.5'D � �� MANUAL VOwME oAMPER LOCKING WITH SHAFT � �' ROOF TOP UNIT � RiU � AIR COOLED CONDENSING UNIT aCCU OR AIR COOLED HEAT PUMP � HP VERTICAL FURNACE OR FC � HORIZONTAL FURNACE OR FC WITH SECONDARV DRAIN PAN � FC F HORIZONTAL AIR COOLED CONDENSING UNIT � AC ROOF EXHAUST FAN C��i EXHAUST FAN � EF ELECTRIC WALL HEATER � EWH EXHAUSTGPoLLE � � SUPPLVAIRDIFFUSER � � RETURNAIRREGISTERORGRILLE � � ROUND DIFFUSER O LINEAR OR SLOT DIFFUSER O DIFFUSER TAG x � MARK XXX CFM FIRE�AMPER � FD COMeINATION FIREISMOKE DAMPER C� FD SD RADIANT FIRE DAMPER � RFD AFF ABOVEFINISHEDFLOOR ACCU AIRCOOLEDCONDENSINGUNIT AWH ARCHITECTURALWALLHEATER BDD BACK DRAFT DAMPER BTUH BRITISH THERMAL UNIT PER HOUR CFM CUBICFEETPERMINUTE 0 ROUNDDUCT EC ELECTRICALCONTRACTOR ECH ELECTRIC CEILING HEATER EF EXHAUSTFAN ESP EXTERNAL STATIC PRESSURE" W C. EUH ELECTRIC UNIT HEATER EWH ELECTRICWALLHEATER F FURNACE FC FAN COIL FD RREDAMPER FD/SD RREAN�SMOKE�AMPER FPM FEETPERMINUTE FSK FOIL SCRIM VAPOR BARRIER GC GENERALCONTRACTOR GUH GASUNITHEATER HD HOOD HP HEATPUMPORHORSEPOWER IR WFRARED MAN MANUAL MaH i000sruH MC MECHANICALCONTRACTOR MCC MOTORCONTROLCENTER MFR MANUFACTURER OA OUTSIDEAIR PC PLUMBINGCONTRACTOR PSI POUNDS PER SpUARE INCH PTAC PACKAGE�TERMINALAIRCONDITIONER RA RETURNAIR RTU ROOF TOP UNIT SA SUPPLYAIR TCC TEMPERATURECONTROLCONTRACTOR RELEA5E0 FOR CONSTRIICTI�N �THERW�SE NOTEo P Su6ject �o compliance with all regula�ions of S�a�e antl Local Codes City of Carmel � �{�n„� i,.va�' oarE: 03/19/20 MECHANICAL SPECIFICATIONS GENERAL 1. PROJECTENCOIIRAGESCOMPETITIVEPRICWGAND ALLOWS FOR SUBSTITUTIONS OF E�UAL EQUIPMENT AND MATERIALS AGAINST THE BASIS OF DESIGN. 2. PRIORTOPROCUREMENTCONTRACTORSHALL SUBMIT TO ARCHITECT FULL SUBMITTALS FOR ALL ENERGV CONSUMING OR PRODUCING ITEMS AND FOR ALL DUCT ACCESSORIES, W SULATION, VAV BOXES, REGISTERS, GRILLES, DIFFUSERSAND LOUVERS. SUBMITTALS SHALL BE DEL W EATED W ITH TAGS INDICATED ON PRINTS, CONTRACTORS NAME, PROJECT NAME. CLEARLY INDICATE ALL MODEL NUMBERS AND ALL ACCESSORIES AND OPTIONS BEING PROVIOED. SUBMISSIONS SHALL BE IN PDF FORMAT. ALL EQUIPMENT AN� ITEMS SHALL BE PER DESIGN BASIS OR APPROVED EpUAL ENGINEER RESERVES THE RIGHT TO REJECT ANV SUBSTITUTE ITEM. 3. CONTRACTOR SHALL BE RESPONSIBLE TO COORDINATE ALL REQUIRED ELECTRICAL SUPPORT NEEDED FROM THE ELECTRICAL CONTRACTOR. ENSURE ALL SUBMITTALS FOR POWERED COMPONENTS AND CONTROLS ARE PROVIDED AND FULLV COOROINATED WITH ELECTRICAL CONTRACTORS. 4. CONTRACTORSHALLBERESPONSIBLETOVISITTHE SITE TO E%AMINE ALL CONOITIONS THAT MAV IN ANY WAVAFFECTTHEEXECUTIONOFHISWOftK. HE SHALL AL50 EXAM WE THE DRAWINGS AND SPECIFICATIONS FOR OTHER BRANCHES OF WORK MAKING REFERENCE TO THEM FOR DETAILS OF EXISTING BUILDWG CONDITIONS. NO EXTRAS WILL BE ALLOWED FOR FAILURE TO INCLUDE ALL REDUIRED WORK IN THE BID. CONTRACTOR SHALL GUARANTEE ALL LABOR AND MATERIALS ENTERING INTO CONTRACT FOR A PERI00 OF ONE (1) YEAR FROM OATE OF ACCEPTANCE. 5. THE�RAWINGSINTHISSECTIONARE �IAGRAMMATIC AND ARE NOT INTENDED TO DEFINE EXACT QUANTITIES, LOCATIONS OR CODIFIED RE�UIREMENTS. DRAW WGS SHOW GENERAL INTENT OF SVSTEMS. M.C. SHALL PROVI�E AND PAV FORALL REQUIRED PERMITS. 6. PRIORTOWORKCOORDINATEALLOPENINGSAND INSTALLATIONS OF DUCT, PIPING, EOUIPMENT, CONTROLS, DIFFUSERS AND GRILLES W ITH G.C. AND OTHER TRADES. PROVIDE INSTALLATIONS WITH PROPERMANUFACTURERSRECOMMENDED CLEARANCES. ]. ALL WORK SHALL BE IN FULL ACCORDANCE WITH 2014 INDIANA MECHANICAL CODE (2012 INTERNATIONAL MECHANICAL CODE), INDIANA ENERGV CODE (ASHRAE 90.L200]) PERTINENT STATE, COUNTV, CITV CODES AND OR�INANCES AND INDIANA AMENDMENTS. E�UIPMENT 1. INSTALLALL WUIPMENT W FULLACCORDANCE WITH MANUFACTURERS RECOMMENDATIONS AN� CLEARANCE REOUIREMENTS. PROVIOEALL REQUIRED MOUNTING OR HOUSEKEEPWG PADS. G.C. SHALL PROVIDE LEVEL GRADE FOR EXTERIOR MOUNTED EQUIPMENT. M.C. SHALL PROVIDE ALL HOISTING AND RIGGING NEEDED TO SET ALL HVAC EpUIPMENT. 2. ALL E�UIPMENT SHALL BE INSTALLED AS NEE�ED TO PREVENT OBJECTIONABLE NOISE ANDIOR VIBRATION. M.Q SHALL PROVIDE VIBRATION PADS, SPRINGISOLATORS,ATTENUATORSAND ACCESSORIES AS NEEDED. DUCTWORK L CONCEALED ROUND DUCTWORK SHALL BE CONSTRUCTED PER SMACNA LOW PRESSURE STANOARD51" PRESSURE CLASS, 5' MAXIMUM JOINT LENGTHS, SEAL CLASS B LONGITUDINAL SEAM SNAP LOCK PIPE AND ADJUSTABLE FlTTINGS. 2 EXPOSEDROUNDDUCTWORK(ORWHERESPIRALIS INDICATED ON THE PLANS) SHALL BE LINDAB OR EpUAL GALVANIZED STEEL CONFORMING TO ASTM STANOARDS A653 AND A924 GASKETED SPIRAL DUCTING WITH NO SEALER EDPM RUBBER GASKET SHALL BE U.L CLASSIFlED RATING OF RAME SPREAD 0 AND SMOKE DEVELOPED 5 IN ACCORDANCE WITH ASTM STANDARD E84-91A SMACNA LEAKAGE CLASS 3. FITTINGS SHALL BE MANUFACTURED USING ONE OR MORE OF THE FOLLOWING CONSTRUCTION METHODS: OVERLAPPE� E�GES STITCH WELDED ALONG THE ENTIRE LENGTH OF THE FITTWG, STANO WG SEAM GORE LOCKED AN� INTERNALLV SEALED, BUTTON PUNCHED AND INTERNALLY SEALED. ELBOWS 3-INCH THROUGH 12-INCH DIAMETER WILL BE DIE STAMPED AND CONTINUOUSLV STITCH WELDEO. 2 PROVIDE SHEET METAL 90 FOR ALL TURNS GREATER THAN 45 DEGREES. DO NOT USE REXIBLE �UCT FOR CHANGES IN DIRECTION GREATER THAN 45 oecRees. 3. PROVIDEMANl1ALBALANCINGDAMPERSFORALL SUPPLV AIR RUNS. ROUN� DAMPERS SHALL BE SECURED ON BOTH SIDES OF �UCT AND SHALL CONTAIN LOCKING HANDLE SPIRAL DUCTS SHALL USE SPIRAL STVLE �AMPERS WITH FULL WIDTH SHAFTS AND NVLON BEARINGS AT EACH END. RECTANGULAR DUCTS SHALL USE MULTI OR SINGLE BLADE WELDED FRAMED DAMPERS WITH JACK SHAFTS AND LOCKING HANDLE INSTALL NYLON RIBBON ON ALL DAMPER HANDLES LOCATED IN INSULATED DUCTING. �O NOT INSTALL DAMPERS IN NON ACCESSIBLE LOCATIONS. PROVIDE INTEGRAL oAMPERS WITH �IFFUSER IN NECK IF NO ACCESSIBLE LOCATION IS POSSIBLE ALL SUPPLV AIR RUNS SHALL HAVE MEANS OF BALANCE. RETURN AND EXHAUST AIR RUNS SHALL CONTAIN DAMPERS WHERE SHOWN ON PLANS. 4. INSULATED REXIBLE DUCTING SHALL NOT EXCEED 25 FEET. ALL FLEX SHALL BE LISTED FLEXIBLE DUCT, FLEXIBLE CONNECTORS ARE NOT ACCEPTABLE. FLE%IBLE DUCT EQUAL TO FLEXIBLE DUCT CLASS 1 AIR DUCT, DOUBLE LAMINATED POLVESTER FILM ON STEEL WIRE REINFORCING, INSULATED WITH SCRIM REINFORCED METALIZED POLVESTER OIITER FIRE RETARDANT JACKET. R-42 FOR CONDITIONED SPACES AND R-6A FOR ANV SPACES OUTSIDE BUILDING THERMAL ENVELOPE. FLEX DUCTS SHALL NOT BE RUN THROUGH WALLS OR FLOORS. PROVIDE HARD OUCTED SLEEVES AS NEEDED. 5. ftECTANGULARDUCTNORKSHALLBE CONSTRUCTED IN ACCORDANCE WITH SMACNA LOW PRESSURE DUCT STANDARDS, +/- 1.0" W.G FROM ASTM A 653/A 653M G90 COATED GALVAMZEO SHEET STEEL SEAMS SHALL BE PITTSBURGH CONSTRUCTION, NO BUTTON PUNCH OR SNAP LOCK SEAMS ARE ACCEPTABLE SEAL ALL TRANSVERSE AND LONGITUDINAL SEAMS WITH WATER BASED OUCT SEALER, SEAL CLASS 6. GAUGE AND JOINT CLASSIFICATIONS ACCEPTABLE ARE AS FOLLOW S, ALL SECTION LENGTHS ARE 4B" MAXIMUM, REFER TO SMACNA RIGIDITY TABLES FOR GAUGES ON LONGER SECTIONS IF REQUIRED: <iP' 26GAUGE,FLATSANDDRIVE 12"-2a" 24 GAUGE FLAT S AND DRIVE 25'34" 22GAU6E,STANDINGSANDRAT DRIVE 34"-40" 22GAUGE,STANDINGSANDSTANDING DRIVE �40" REFER TO SMACNA FOR STANDARDS. 6. DUCT HANGERS: COMPLV WITH SMACNA'S "HVAC DUCTCONSTRUCTIONSTANDARDS-METALAND REXIBLE;' CHAPTER 5, "HANGERS AND SUPPORTS" FLEXIBLE DUCTING SHALL BE SUPPORTED USING MINIMUM 2" WIDE NVLON STRAP. ALL INTERVALS ARE PERSMACNA DUCT ACCESSORIES 1. COORDINATEWITHARCHITECTURALDRAWINGSAND PROVIDE FIRE AND FIRE AND SMOKE �AMPERS AT FIRE RATEDASSEMBLV PENETRATIONS IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE AND WHERE SHOWN ON PLANS. 2. PROVIDERASHINGMATERIALSANDORSLEEVESAS REpUIRED FOR ALL DUCT PENETRATIONS OF NON RATED ELEMENTS.EXPOSED PENETRATIONS SHALL BE FLASHED WITH SHEET METAL TIGHT TO WALLS. 3. PROVIDE TAKE OFFS. PEAL AND STICK STVLE ATTACHED TO RECTANGULAR DUCTING WITH SHEET METAL SCRE WS FOR ALL ROUND SUPPLV AIR TAKE OFFS AN� SADDLES. DUCTINSULATION 1. ALL DUCT WSULATION MATERIALS SHALL HAVE A FLAME SPREAD RATING OF 25 OR LE55 (ON THE FLAME SPREAD TEST SCALE) ANO SMOKE DEVELOPMENT OF 50 OR LESS (ON THE SMOKE TEST SCALE) OR AS oEFlNED BV NFPA 255 STANDARD METHOD OF TESTING OF SURFACE BURNING CHARACTERISTICS OF BUILDING MATERIAL$ LOCAL CODES ANO LOCAL AUTHORITIES HAVING JURISDICTION. DUCT WRAP SHALL BE RBERGLASS MATERIAL PER ASTM C-411,ASTM C-1104,ASTM C665, ASTM C-1338, ASTM E84, U V23, NFPA 90A,CAN/ULC 5102-1188,ASTM C1290, ASTM C553, ASTM C1136. 2. INSULATION:INSTALLALLINSULATIONIN STRICT ACCOROANCE WITH MANUFACTURERS INSTRUCTIONS IN A TIGHT ANo NEAT MANOft. NO SAGGING, FRAVE� ORTORN INSULATION WILL BE EXCEPTED. UNLE55 OTHERW ISE NOTEO ON PLANS DUCTWORK SHALL BE INSULATED AS FOLLOW S: XX- 1412" FIBERGLASS DUCT WRAP WITH FSK FAqN6, ]5 N/FT3 MINIMUM APPLIED R-3.S INSTALLED IN STRICT ACCORDANCE WITH MANUFACTURERS REQUIREMENTS. XX NONEREQUIREDUNLESSNOTEDON PLANS. XX INUNCONDITIONEDORATTICSPACES OUTSIDE THE BUILDMG INSULATION ENVELOPEYMINIMUM R-6ASAPPLIED FSK DUCT WRAP. XX- IN RETURN AIR PLENUMS OR CONDITIONED SPACES WHERE NOT CONCEALED BV DRVWALL CEILING OR BULKHEAD CONSTRUCTION WITHIN THE BUIL�ING WSULATION LME NONE REDUIRED. LINERS: PLENUMS, REGISTER BOXES, ANO RTU DROPS SHALL BE MINIMUM 1" THICK 1412 # DENSITY PER CU. FT., HAVING MAT FACED OR MONOLITHIC CONSTRUCTION W ITH SKIN SMOOTH MICROBIAL SURFACE TO WITHSTAND VELOCITIES TO 4000 FPM. INSULATION SHALL RT SNUGLY AGAINST THE INTERIOR DUCT SURFACES, AND BE FASTENED TO THE DUCT W ITH A 50 % HEAW COAT OF RECOMMEN�ED ADHESNE ANO METAL FASTENERS WHICH DO NOT PIERCE THE �UCT, SPACEDATI2"CENTERS.ALLEXPOSED EDGES OF THE INSULATION SHALL BE COATED WITH MANUFACTl1RE� RECOMMEN�E� ADHESNE SIZES ON PLANS INDICATE FREE AREA. EXTERIOR INSULATEWITHCONTINUOUSMINIMUM R-6 POLVISOCVANURATE FOAM SHEATHING C W ERED WATER TIGHT IN VENTURE CLAD 151�CW CLADDWG. 18. RRE STOPPING. a. FIRE STOPPING SYSTEMS SHALL BE IN FULL COMPLIANCE W ITH SECTIONS ]13 OF THE IBC AND SECTION 607 OF THE IMC. b. CONTRACTORSHALLMAKEREFERENCETO ARCHITECTURAL PLANS AND PROVIDE ALL REpUIRED FIRE STOPPING. a CONTRACTORSHALLPROVIDEFIILLSUBMITTAL INDICATING METHODS OF CONSTRUCTION AND UL LISTING OF EACH SVSTEM. d. DUCTS AND AIR TRANSFER OPENINGS. PENETRATIONS OF FIRE-RESISTANCE-RATE� WALLS BV DUCTS THAT ARE NOT PROTECTED W ITH DAMPERS SHALL COMPLV WITH SECTIONS ]132 THROUGH ]1333 OF THE IBC. PENETRATIONS OF HORIZONTAL ASSEMBLIES NOT PROTECTED W ITH A SHAFT AS PERMITTED BV EXCEPTION 4 OF SECTION ]082, AND NOT R W UIRED TO BE PROTECTED WITH FlRE DAMPERS BV OTHER SECTIONS OF THE IBC CODE, SHALL COMPLV WITH SECTIONS ]13 4 THROUGH ]13 4 2 2 OF THE IBC. DUCTS AND AIR TRANSFER OPENINGS THAT ARE PROTECTED W ITH DAMPERS SHALL COMPLY WITH SECTION ]i6. e. FIRE DAMPERS, SMOKE DAMPERS, COMBINATION FIRE/SMOKE DAMPERS AND CEILING RAOIATION DAMPERS LOCATED WITHIN AIR OISTRIBUTION AND SMOKECONTROLSVSTEMSSHALLBEINSTALLED IN ACCORDANCE W ITH THE REpUIREMENTS OF SECTION 60] OF THE IMC. AND THE MANUFACTURER'S INSTALLATION INSTRUCTIONS AND LISTING. f. ACCESS DOORS SHALL BE PERMITTED IN CEILINGS OF FIRE-RESISTANCE-R4TED FLOOR/CEILING AND ROOF/CEILING ASSEMBLIES PROVIDE� SUCH DOORS ARE TESTED IN ACCORDANCE WITH ASTM E 119 OR UL 263 AS HORIZONTAL ASSEMBLIES AND LABELEDBVANAPPftOVEDAGENCYFORSUCH PURPOSE. ALL ACCE55 DOORS SHALL BE PROVI�ED BV TRADE MAKING PENETRATIONS. CHECK TEST ANo $TART UP REQUIREMENTS 1. ALLHVACEQUIPMENTINSTALLATIONSSHALLBE VERIFIED AND STARTED UP PER MANUFACTURERS RECOMMENDATIONS. VERIFV ALL MOOES OF OPERATION. CONFIGURE ALL CONTROLS AN� PROGRAM OCCUPANCIES PER OWNER PROVIDED SCHEDULES. 2. PROVIDEAIRBALANCEBYCONTRACTOR. CONTRACTOR SHALL BALANCE SUPPLV, RETURN, OUTSIDE, RELIEF AND EXHAUST AIR SVSTEMS IN ACCORDANCE W ITH CURRENT SMACNA, NEEB OR AABC STANDARDS TO DESIGN VAW ES AND PROVIDE WRITTEN REPORT TO ARCHITECT. MECHANICAL CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDWG ALL DEVICES �RNES, SHEAVES, MOTOR CHANGES AND RE WORK AS REQUIRED TO MEET OESIGN REpUIREMENTS. 3. TEMPERATURE CONTROL WORK SHALL BE THE RESPONSIBILITV OF THE HVAC CONTRACTOR. PROVIDE ALL COMPONENTS INCLUDING T/S, T/S W IRE (PLENUM RATED IN RA PLENUMS), SW ITCHES, ACTUATORS ETG AS REpUIRED FOR A COMPLETE SVSTEM. PRIOR TO ROUGH-IN COORDINATE FINAL LOCATION FOR ALL CONTROLS WITH OWNERS REPRESENTATNE. 4. CLOSE OUT: PROVIDE MANUFACTURERS OPERATION AND MAINTENANCE MANUALS, AIR BALANCE REPORT AND AS BWLT �RAWINGS. PROVIDE (1 � TRAINING SESSION TO OW NER SELECTED PERSONNEL AS REQUESTEO AND PROVIDE WARRANTY INFORMATION FORALL MANUFACTURERS WARRANTED EOUIPMENT. DIFFUSERS, REGISTERS AND GRILLES TAG DESCRIPTION MFR MODEL MAT'L CFM MOUNTNG INTEGRAL NOTES: STVLE DAMPER 5-� 12"X12" LAV-IN �IFFUSER-6" NECK PRICE SCD STL 100 LAV-IN NO 1 2 5-2 24"X24" LAV-IN �IFFUSER-6" NECK PRICE SCD STL 100 LAV-IN NO 1 2 S-3 24"X24" LAV-IN �IFFUSER-8" NECK PRICE SCD STL 130-220 LAV-IN NO 1 2 S-4 10X4 DOUBLE DEFECTION REGISTER PRICE 52� ST 0-054 LAV-IN VES 1 2 Ei 6X6DOUBLEDEFECTIONREGISTER PRICE 52� STL �-]5 SURFACE VES �O2 R-1 24X12FlXEDBLADEGRILLE PRICE 53� STL 0-00�0 LAV-IN NO �O2 � COLOR'. WHITE � REFER TO FLOOR PLAN FOR EXACT CFM. LOUVERS, INTAKES, RELIEFS MIN FREE GREENHECK TVPEFANAND FftEE PSI AREA MWEL# LOCATION�SERVICE DESCRIPTION SRE CFM AREA OROP VEL NOTES (FT2) (IN WG.) FPM/MA ESD-035 GARAGE 4"INTAKELOWER 32W.xi6H. 1,100 1.6 0.08 989 ENERGY RECOVERY SCHEDULE PERFORMANCE OATA ELECTRICAL DATA GREENHECK TVPEAN� SUMR WNTR SUPPLV EXHAUST TAG MODEL# DESCRIPTION CFM EFF EFF ESP ESP HP VOLTS/PHIHZ MCA MOCP ERV4 ERV-2045L STATICPLATEHEATANDHUMIpITV 11�0 ]9.1% 81.8% 0.5 15 (1)3/4,(1)1 208/3/60 8.8 15 VENTILATION AIR CALCULATIONS TOTAL OCCUPANTS CALCULATED CFM/PERSON PEOPLE CFM AREA CFM AREA CFM TOTAL CFM E%HAUST RATE AREA TVPE NET PER 1000 FT OCCUPANTS REQUIRMENT REQUIRE� RpUIRMENT REQUIRED REpUIREO CFM X 0.6 AREA CFM/FT2 1781 25 30 20 600 0.12 143 143 �12 TOTAL 1187 743 772 1"Xi"Xi/B" STEEL ANGLE � SCREW TO LOWER SLEEVE 6" O.C. N 1 � SCREWS AND ANCHOREDTO MASONRV WALL iP' O.C. WITH 1/6" MASONRV ANCHORS. TYPICAL TOP, BOTTOM AND SIDES � LOWER SLEEVE 20 GA. INTERIOR CAULK INTERIOR ANO - EXTERIOR PERIMETER WEATHERTIGHT WITH URETHANE CAULKING. LOUVER COLOR TO BE APPROVEDBY ARCHITECT EXTERIOR SECURE REXIBLE OUCT TO SUPPLY DIFFUSER ELBOW FITTING WITH DRAWBANDS. SHEET METAL ELBOW SEAL ALL RIBS AND CONNECTION TO DIFFUSER NECK SUPPLY �IFFUSER ACT CEILING A MASONRY PENETRATIONS SCALE: NONE 45 DEG. O RECTANGULAR LL DUCT � BRANCH � ¢ OCL CONNECTION TAKEOFF.HAMMER LOCKED OR FLANGED ANO FULLV SEALED ROUNOSHEETMETAL �UCTTODIFFUSER V.D. � LL ¢ 45 DEG. HIGH EFFlqENCV � TAKE OFFCOMPLETELV � SEALED � �30° MAX � � OFFSET. PROVIDE MINIMUM 2" STRAIGHT SECTION AT EACH END. MAX 30 DEG. LAY-IN DIFFUSER DETAIL BNO SCALE �0 M� � ECCENTRIC TRANSITION MAX, 30 DEG. v NOTE: IN GENERAL, ELBOWS TO HAVE FULL TURNING RADIUS (R=A). WHERE "R" IS EpUAL TO OR GREATERTHAN"A" MINIMUM RA�IUS (RJ=4 WCHES. � 0 CONCENTRIC TRANSITION MAX, 45 DEG. DNERGING AND 60 DEG. CONVERGING �� im 1Y NOTE: DOUBLE THICKNESS TURNING VANES TO BE USED WHERE NORMAL RADIUS ELBOW IS IMPRACTICAL & WHERE ELBOW IS WITHIN 5 FT OF A BRANCHTAKE-OFF. DUCT CONSTRUCTION DETAILS CSCALE NONE REX DUCT MAXIMUM LENGTH SHALL NOT EXCEED T-0" � Z K Q W W Z � Z W � � W a ` o U d � 0 � � � >N N Q W > � � C� �N N(O C �'.. �� r � �� C c0 W N C � c � � p � � w o a�zu�� OU L - o a U � � � � O W a OMM'O i'J� W QaIL W W N � � � � V/ N W V � � �� V/ � NO. �€ 10200395 � �--� s.<.EOF �u�E_--'--' / 1 2� i �a I �/ � w > C� � oH �� m`S�ONA�.E?O.. 7� %� i� j � °�mu noo�� / 11/27/2019 n O O� U W 0 � d G � � ^ � Q � 0 Z � W Z � O W ti w � � � (h C`7 O � � Q � OQ � z Q J � � Z Z WC } � C Q (7 � U �U � Z � � Z ¢ O U ~ LL Q - jU W w �a m � Q � � �m � } � M001