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Home My WebLink AboutM5.20HVAC - DETAILSSCALE: 1 2 3 4 5 6 7 8 9 10 100 90 80 70 60 50 40 30 20 1 20 30 40 50 60 70 80 90 100 10 9 8 7 6 5 4 3 2 1 NO. 1 OF 3NO. 2 OF 3NO. 3 OF 3NO. 2 OF 2NO. 1 OF 2NO. 1 OF 1OUTSIDE RADIUS IN INCHESINSIDE RADIUS OF ELBOW IN INCHESNUMBER OF SPLITTERS SCALE: SCALE: SCALE: SCALE: NO & SPACING OF DUCT SPLITTER VANES2 NTS SCALE: SCALE: SCALE: h = DUCT HEIGHT w = DUCT WIDTH h w NO. OF VANES EQUIVALENT DIAMETER = (w+h)/2 1 2 3 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WITHIN 2 EQUIV. DIA.: WHEN 2 ELBOWS ARE NO. OF VANES DEPICTED HERE: EXAMPLE AT LEFT IS OF 3 VANES. NO. 2 VANE OF A TOTAL "NO. 2 OF 3" = OF 3 VANES. NO. 1 VANE OF A TOTAL "NO. 1 OF 3" = TERMINOLOGY: = INSIDE RADIUS = CENTERLINE RADIUS R r rR r/w = 0.5 IS A SQUARE THROAT ELBOW! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 1 0 FOR 1 ELBOW: r/w >= 1.50 1.5 > r/w >= 0.70 0.7 > r/w >= 0.60 0.6 > r/w >= 0.55 HOWEVER, MINIMUM INSIDE RADIUS R SHOULD BE 2". NOTE: r/w RATIO: RADIUS ELBOW AND SPLITTER VANE REQUIREMENTS R=20" R=2" R=4-1/4" R=9-1/4" D = DUCT DIAMETER = INSIDE BEND RADIUS = CENTERLINE BEND RADIUS R rRr D D D SUPPLY OR EXHAUST VENTURI VALVE INSTALLATION DETAIL8 NTS FLANGE CONNECTION FOR EASY REMOVAL. SLIP CONNECTION ALLOWED IF DUCTWORK IS TRANSLATABLE TO ALLOW FOR REMOVAL DUCT SS SHEETMETAL SCREWS (4 PER CONNECTION) SUPPORT VALVE INDEPENDENTLY SEAL AIR TIGHT CLEANOUT & INSPECTION TEE SECTION: REFER TO DETAIL 4" MAX AIR EXHAUST VALVE SEAL AIR TIGHT (REFER TO SPECS) AIR FLOW NOTES: 1. WHERE DUCT SIZES ARE NOT INDICATED ON PLANS, SELECT SIZE FROM TABLE BASED ON THE CFM REQUIRED; SIZES BASED ON MAXIMUM STATIC PRESSURE DROP OF 0.05 INCHES PER 100 FEET OF DUCT. EQUIVALENT RECTANGULAR DUCT SIZE (IN) DUCT ARRANGEMENT 60 75 110 160 220 300 380 500 600 700 850 1000 1400 1800 2100 2500 3000 26 24 22 20 18 16 16 14 14 14 12 10 10 8 8 6 6 4x8 4x8 4x12 6x10 6x12 6x16 6x18 6x24 8x20 8x22 8x26 8x30 10x30 10x38 12x34 12x42 12x50 14x42 14x36 14x28 12x30 12x24 10x22 10x20 10x18 10x16 8x16 8x14 8x12 8x10 8x8 6x8 6x6 18x32 18x26 18x22 16x22 16x18 14x16 14x14 16x36 16x30 16x24 14x26 14x20 12x18 12x16 12x14 12x12 10x14 10x10 10x10 AIR INLET WITH FLOW SENSOR (TYP) NOTES: 1. CONNECTIONS APPLY TO ALL TERMINAL BOXES INCLUDING THOSE WITHOUT REHEAT COILS OR WITHOUT SOUND ATTENUATORS. REFER TO PLANS AND SCHEDULES FOR REHEAT COIL AND SOUND ATTENUATOR REQUIREMENTS. 2. PROVIDE RECTANGULAR OR ROUND TO OVAL TRANSITIONS WHEN BOX INLET IS OVAL. 3. FOR CONTROLLERS WITH INSULATED ELECTRICAL CONNECTORS (NO EXPOSED LIVE PARTS), ACCESS DEPTH SHALL BE 24 INCHES MINIMUM. FOR CONTROLLERS WITH EXPOSED CONNECTORS/TERMINAL STRIPS, ACCESS DEPTH SHALL BE 36 INCHES MINIMUM PER THE NEC. WIDTH OF ACCESS ZONE SHALL MATCH WIDTH OF CONTROLLER PANEL COVER OR 24 INCH MINIMUM. CONNECTION TO MAIN DUCT AS INDICATED IN ABOVE DETAIL RECTANGULAR MAIN SUPPLY OR BRANCH: TAPERED 45° ANGLE CONNECTION, L = MAX 0.25 x W OR 4" MINIMUM; FOR ROUND MAIN SUPPLY OR BRANCH: CONICAL OR BELLMOUTH TAKEOFF (TYPICAL) TERMINAL BOX INLET SIZE (INCHES) RUNOUT DUCT RUNOUT DUCT SIZE - BOX TO MAIN DISTANCE LESS THAN 10 FEET ROUND DIAMETER (INCHES) RUNOUT DUCT RUNOUT DUCT SIZE - BOX TO MAIN DISTANCE GREATER THAN 10 FEET (INCHES) RUNOUT DUCT SIZING SCHEDULE UNLESS LARGER SIZE INDICATED ON PLANS NTS 5 SUPPLY AIR TERMINAL BOX AND VALVE - DUCT CONNECTIONS 15 DEG MAX DUCT TRANSITION (TYP) ACTUATOR AND CONTROLLER (TYPICAL) SUPPLY AIR MAIN SERVICE SPACE. DO NOT BLOCK WITH PIPING, CONDUIT, EQUIPMENT OR WALLS (TYPICAL) - SEE NOTES FOR CLEARANCES REQUIRED. SUPPLY AIR TERMINAL BOX OR VALVE SUPPLY AIR TERMINAL BOX OR VALVE REHEAT COIL INLET ACCESS DOOR IN BOTTOM OF DUCT. TERMINAL BOX MANUFACTURER OPTIONAL ACCESS DOOR IN HOUSING IS ACCEPTABLE IN LIEU OF DUCT ACCESS DOOR (TYP) FOR REHEAT COILS MOUNTED IMMEDIATELY ADJACENT TO BOX (TYPICAL). PROVIDE AIRFLOW SENSOR AT AIR INLET (TYP) NOTES: 1. DUCT AND SOUND ATTENUATOR SIZE SHALL BE AS INDICATED ON DRAWINGS AND SCHEDULES. TRANSITION AFTER SATT TO SIZE MATCHING BOX INLET SIZE. 2. DUCT CONNECTION REQUIREMENTS INDICATED APPLY TO ALL TERMINAL BOXES INCLUDING THOSE WITHOUT SOUND ATTENUATORS. REFER TO PLANS AND SCHEDULES FOR SOUND ATTENUATOR REQUIREMENTS. 3. PROVIDE RECTANGULAR OR ROUND TO OVAL TRANSITIONS WHEN BOX INLET IS OVAL. 4. FOR CONTROLLERS WITH INSULATED ELECTRICAL CONNECTORS (NO EXPOSED LIVE PARTS), ACCESS DEPTH SHALL BE 24 INCHES MINIMUM. FOR CONTROLLERS WITH EXPOSED CONNECTORS/TERMINAL STRIPS, ACCESS DEPTH SHALL BE 36 INCHES MINIMUM PER THE NEC. WIDTH OF ACCESS ZONE SHALL MATCH WIDTH OF CONTROLLER PANEL COVER OR 24 INCH MINIMUM. RECTANGULAR MAIN SUPPLY OR BRANCH: TAPERED 45° ANGLE CONNECTION, L = MAX 0.25 x W OR 4" MINIMUM; FOR ROUND MAIN SUPPLY OR BRANCH: CONICAL OR BELLMOUTH TAKEOFF (TYPICAL) INLET DUCT (TYP) 15 DEG MAX DUCT TRANSITION (TYP) ACTUATOR AND CONTROLLER (TYPICAL) EXHAUST OR RETURN AIR MAIN EXHAUST OR RETURN AIR TERMINAL BOX OR VALVE EXHAUST OR RETURN AIR TERMINAL BOX OR VALVE EXHAUST OR RETURN FROM SPACE OR EQUIPMENT EXHAUST OR RETURN FROM SPACE OR EQUIPMENT SERVICE SPACE. DO NOT BLOCK WITH PIPING, CONDUIT, EQUIPMENT OR WALLS (TYPICAL) - SEE NOTES FOR CLEARANCES REQUIRED. WxH FOR RECT CONCENTRIC TRANSITIONS (TYPICAL) 1.5 D 3D TRANSITION (TYP) SOUND ATTENUATOR SUPPLY TO SPACESUPPLY TO SPACESOUND ATTENUATOR REHEAT COIL (TYP) R=D 1.5 D WxH ROUND DIAMETER 4 5 6 8 10 12 14 16 18 4 5 6 8 10 12 14 16 18 6x6 8x6 8x8 10X10 14X10 14X12 16X14 18X16 20X18 20 18 16 14 12 10 8 7 6 L TRANSITION (TYP) 1.5 D R=D 1.5 D SOUND ATTENUATORTRANSITION L SOUND ATTENUATOR 3D D DISCHARGE DUCT WxH FOR RECT DISCHARGE DUCT WxH FOR RECTD AIRFLOW MAX (CFM)ROUND DUCT SIZE (IN) RECTANGULAR DUCT WHEN HEIGHT DOES NOT ALLOW FLEX CONN, HARD-DUCT BUT BE SURE BRANCH IS 4" WIDER THAN COLLAR TO ALLOW ALIGNMENT OF TERMINAL WITHIN GRID WITHOUT FISHMOUTHING. FLEX CONN. REFER TO SPECS FOR INSULATED TYPE DIFFUSER REGISTER (TYP.)MAX. OFFSET = D/8" NOTES: 1. DETAIL ALLOWS DUCTWORK TO BE INSTALLED BEFORE CEILING GRID THEN ALLOWS DIFFUSERS AND REGISTERS TO BE POSITIONED INTO GRID. 2. PROVIDE INSULATED TRANSITION ROUND TO SQUARE INLET DIFFUSERS. 7. SECURE FLEXIBLE DUCT TO METAL DUCT WITH (2) STAINLESS STEEL CLAMPS OR NYLON TY-WRAPS TO INDIVIDUALLY SECURE FLEXIBLE DUCT INNER SLEEVE AND OUTER SLEEVE. WHEN INSTALLED ON INSULATED SYSTEM SEAL INSULATION JOINT WITH VAPOR BARRIER MASTIC. PROVIDE NYLON TY-WRAP TOOL OR REUSABLE SS DRAW BANDS. 8. PROVIDE DUCT MOUNTED VOLUME DAMPER. AVOID NECK DAMPERS. 9. FLEXIBLE DUCTS SHALL BEND IN ONE DIRECTION ONLY WITH A MAXIMUM CHANGE IN DIFFERENCE OF 90 DEGREES. 10. UNLESS SHOWN OTHERWISE FLEXIBLE DUCT SIZE AND COLLAR OF TAP OFF SHALL BE SAME SIZE AS DIFFUSER NECK. 11. IF RUN-OUT LENGTH REQUIRES SEGMENT OF HARD DUCT, SIZE SHALL BE SAME AS DIFFUSER NECK. RUN-OUT TO DIFFUSER SHALL BE AS STRAIGHT AS POSSIBLE. 12. CENTERLINE RADIUS r OF FLEXIBLE DUCT BEND SHALL BE MINIMUM 1.5 DUCT DIAMETERS r >= 1.5 x D 13. LENGTH OF FLEX DUCT SHALL NOT EXCEED 6'-0" AS RECOMMENDED IN THE 2017 ASHRAE FUNDAMENTALS HANDBOOK. FLEX DUCT SHALL NOT HAVE MORE THAN 1/2" SAG PER FOOT. NTS 3 DIFFUSER/REGISTER DUCTWORK CONNECTIONS SUPPORT ELBOW WITH TIE SCREW AND CLAMP (TYPICAL) AIR DEVICE NECK AIR DEVICE SIZE AS NOTED ON PLANS PROVIDE DURABLE ELBOW SUPPORT DRAW BANDS SNUG WITHOUT CRUSHING FLEXIBLE DUCT FLEXIBLE DUCT 3D PREFERRED 1D MINIMUM PROVIDE EQUALIZING GRID IF LESS THAN 3D RETURN/EXHAUST AIR SUPPLY AIR BRANCH DUCTL W VD TAPERED CONNECTION 45° ANGLE(IF MAIN DUCT IS RECTANGULAR) OR CONICAL CONNECTION (IF MAIN DUCT IS ROUND) L=1/4 W; 4"MIN MAIN DUCT A SUPPLY OR EXHAUST VENTURI VALVE CLEANOUT & INSPECTION DETAIL7 NTS PVC THREADED CLEANOUT FLANGE CONNECTION EXHAUST DUCT2dFLANGE AIR FLOWd SECTION A LOW PRESSURE DUCT SIZING TABLE1 NTS NTS 4 EXHAUST AND RETURN AIR TERMINAL BOX AND VALVE - DUCT CONNECTIONS LOW PRESSURE BRANCH TAKE-OFFS6 NTS Architect Payette Associates Architects, P.C. 290 Congress Street, Fifth Floor Boston, MA 02210-1005 Tel: 617-895-1000 Fax: 617-895-1002 MEP/FP Engineer Vanderweil 274 Summer Street Boston, MA 02210 Tel: 617-423-7423 Structural Engineer SGH 41 Seyong Street Building 1, Suite 500 Waltham, MA 02453 Tel: 781-907-9000 Fax: 781-907-9009 Drawing Scale Project Number Date Issued Renovation of Olin Hall for Chemical and Biomolecular Engineering - Phase 1 Code Consultant Hastings Consulting Inc 142 Hanlon Road Hollister, MA 01746 Tel: 508-397-8417 Lighting Designer Available Light 10 Derby Square #3 Salem, MA 01970 Tel: 978-744-6800 N Cost Consultant Dharam Consulting 745 Atlantic Ave Fl 8 Boston, MA 02111 Tel: 617-913-4345 Abatement Specialist Delta 860 Hooper Rd Endwell, NY 13760 Tel: 607-231-6600 Civil Engineer T.G. Miller, P.C. 203 N. Aurora Street Ithaca, NY 14850 Tel: 607-272-6477 NTS M5.20 29313.00 11/30/18 HVAC - DETAILS # DATE DESCRIPTION 1 11/30/18 ISSUED FOR CONSTRUCTION DocuSign Envelope ID: D6CBE973-BBA9-4BE0-861E-C2F6DD72B539 12/10/2018