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wl <br />PREFERRED <br />TAKE -OFF DETAIL <br />BELLMOUTH CONNECTION <br />SIMILAR TO "BUCKLEY" <br />MODEL BMD (SEAMLESS) <br />VANED ELBOWS TO VD <br />BE CONSTRUCTED DUCT SIZE <br />AND INSTALLED AS (SEE PLANS) <br />DETAILED BY <br />SMACNA <br />A TERNATE <br />TAKE -OFF DETAIL <br />MINI-BELLMOUTH <br />CONNECTION SIMILAR TO <br />"BUCKLEY" MODEL <br />MBMD (SEAMLESS) <br />VD <br />ALTERNATE ALTERNATE <br />TAKE -OFF DETAIL TAKE -OFF DETAIL <br />STANDARD 90• RECTANGULAR <br />TO ROUND BOOT CONNECTION MAIN DUCT <br />"BUCKLEY* MODEL 33000 AIR FLOW <br />(CONTINUOUSLY WELDED) <br />VD rl (ONLY WHEN OTHERS HOLE SIZE DO NOT FIT) VD <br />(SEE BELOW-TYP.) <br />THIS DETAIL APPLIES TO SINGLE <br />TAKEOFFS TO DIFFUSER AS WELL AS <br />BRANCH TAKEOFFS. IT ALSO APPLIES TO <br />TAKEOFFS IN THE HORIZONTAL AS WELL <br />AS VERTICAL DIRECTION. <br />STANDARD <br />RECTANGULAR <br />CONNECTION <br />NOTE: <br />ALTERNATE FITTINGS SHALL BE USED WHEN DUCT HEIGHTS <br />DOES NOT PERMIT THE USE OF THE PREFERRED FULL SIZE <br />BELLMOUTH SUBMIT FITTINGS FOR REVIEW BY ENGINEER <br />PRIOR TO INSTALLATION. <br />nnnr nrnv <br />L;tiUNU JUIW <br />ROOF DECK <br />CEILING JOIST <br />UNISTRU <br />JOIST WEBBING <br />2" WIDE METAL <br />STRAPPING <br />IUCTWORK SUPPORTED <br />WITH UNISTRUT <br />GENERAL NOTES: <br />A. DUCTWORK CANNOT BE SUPPORTED FROM ROOF DECK <br />B. SECURE UNISTRUT SUPPORTS TO CEILING JOIST WITH BEAM CLAPS. <br />07 DUCT ROUTING BETWEEN CEILING <br />JOIST DETAIL SCALE: N.T.S. <br />r <br />4; <br />J SET ROOF CURB ON <br />�-6" MIN. STRUCTURAL STEEL - <br />SHIM DEAD LEVEL. <br />ABOVE SECURE ROOF CURB <br />OBD <br />( TO METAL DECK & <br />12" IN DEPTH) FAN TO ROOF CURB. - <br />ROOF <br />FLEXIBLE DUCT <br />CONNECTION <br />INSULATED ROOF <br />CURB. FLASH AND <br />COUNTERFLASH TO <br />ROOF. LEVELING & <br />SEALING BY ROOF <br />MANUFACTURER. <br />GRAVITY <br />BACKDRAFT DAMPER <br />SUPPLY DROP BOX <br />09 1 INLINE FAN INSTALLATION DETAIL <br />06 1 NOT USED <br />5 FEET MAXIMUM <br />DIFFUSER TYPE 10 <br />WIND RESTRAINT BRACKETS DESIGNED <br />BY MANUFACTURER FOR WINDLOADS IN <br />ACCORDANCE WITH LOCAL BUILDING CODES <br />1. <br />SET ROOF CURB ON STRUCTURAL STEEL - SHIM DEAD LEVEL. <br />SECURE ROOF CURB TO METAL DECK AND RTU TO ROOF CURB. <br />2. <br />TRANSITION TO CONNECTION SIZES IN DUCT RISE, REFER TO PLANS <br />FOR SIZES. <br />3. <br />1" ACOUSTIC LINER IN ENTIRE RETURN DUCTWORK SYSTEM. DUCT <br />SIZES INDICATED ON PLAN ARE INTERIOR DIMENSIONS AND DO NOT <br />INCLUDE LINING. PAINT DUCTWORK TO MATCH CEILING. REFER TO <br />ARCHITECTURAL DRAWINGS FOR PAINT SPEC. <br />4. <br />REFER TO STRUCTURAL DRAWINGS FOR JOIST LOCATIONS, SIZES, AND <br />z <br />DIRECTION. <br />\ <br />5. <br />INSULATED ROOF CURB. <br />10 ao <br />6. <br />PVC CONDENSATE DRAIN WITH CLEAN OUT AND 4" DEEP SEAL TRAP. <br />DISCHARGE TO SPLASH PAD ON ROOF. <br />7. <br />GAS CONNECTION WITH GAS COCK, UNION AND DIRT LEG. REFER TO <br />PLAN FOR GAS PIPE SIZES. <br />8. <br />FLEXIBLE CONNECTION - TYPICAL. <br />9. <br />SUPPLY DROP BOX DIFFUSER. <br />3 <br />10. <br />RETURN OPENING ON TOP OF RETURN AIR DUCT WITH 1/2- <br />EXPANDED MESH SCREEN OVER OPENING, SEE PLAN SHEET FOR <br />SIZING. ADJUST RETURN DUCT SIZE (MAINTAIN EQUIVALENT AREA) AS <br />REQUIRED TO FIT IN JOIST SPACE. RETURN AIR DUCT SHALL BE <br />�... INSTALLED A MINIMUM OF 18" BELOW ROOF DECKING TO ALLOW FOR <br />U-L LISTED DUCT AIR FLOW. IN NO CASE SHALL RETURN AIR DUCT BLOCK AIRFLOW <br />LINER FROM SUPPLY AIR REGISTERS. IF IT IS NOT POSSIBLE TO INSTALL <br />RETURN DUCT BETWEEN JOISTS, THEN INSTALL BELOW JOISTS. <br />SCALE: N.T.S. <br />SUPPORT END <br />OF METAL DUCT <br />VD <br />FLEXIBLE DUCT (USE <br />AS REQUIRED FOR <br />DIFFUSER ALIGNMENT <br />`CEILING <br />NECK SIZE / GRILLE SIZE <br />R FLOW - CFM <br />PREFABRICATED <br />INSULATED CURB. <br />SCALE: N.T.S. <br />NON -CORROSIVE <br />FASTENERS @ 16" O.C. <br />COUNTER FLASHING <br />WITH HOLD-DOWN CLIP. <br />ROOFING FLASHING <br />MEMBRANE. <br />NG MEMBRANE. <br />RIGID INSULATION OVER <br />STEEL DECK. <br />ANGLE FRAMING. <br />NOTES: <br />1. ALL CURBS FURNISHED BY MECHANICAL CONTRACTOR. <br />CURB SHALL BEAR DIRECTLY ON STRUCTURAL STEEL NOT <br />ON METAL DECK. MECHANICAL UNIT MUST SIT LEVEL. <br />2. COORDINATE FLASHING & SEALANT MATERIALS WITH <br />ROOF SYSTEM MEMBRANE & APPLICABLE WARRANTY <br />REQUIREMENTS. <br />05 1 ROOF CURB DETAIL <br />SCALE: N.T.S. <br />BRANCH DUCT <br />MAIN SUPPLY AIR DUCT <br />45• TAKE -OFF <br />PROVIDE MANUAL BALANCING <br />DAMPER (SEE SPECIFICATIONS) <br />IF INSTALLED ABOVE HARD <br />CEILING, PROVIDE CONCEALED <br />REMOTE DAMPER ADJUSTER. <br />1 /4 WIDTH OF BRANCH DUCT <br />ENTECH <br />ENGINEERING INC. <br />5301 VIRGINIA WAY SUITE 140 <br />BRENTWOOD, TN 37027 <br />v. 615.3 73.2 640 1. 615.3 73.483 7 <br />email®entechtn.com entechtn.com <br />O <br />F- <br />a. <br />w <br />W <br />0 <br />W <br />H <br />Q <br />0 <br />W <br />N <br />d' <br />Lo <br />Q co <br />Z M <br />J <br />JLL <br />_ _ <br />W >- <br />N= <br />W <br />N <br />Q <br />VJ <br />U <br />- <br />W <br />J <br />- <br />Q <br />Z�W <br />= <br />W <br />U=p <br />LJJ <br />0 <br />Z <br />2U)Q <br />ISSUED FOR: <br />PERMIT 03.14.19 <br />BID 03.14.19 <br />CONSTRUCTION - <br />REVIEW SET - <br />PROJECT MANAGER DESIGNER <br />JOB NO. <br />18390 <br />t.� <br />04 1 DUCT TAKEOFFS AND ELBOW <br />SCALE: N.T.S. <br />03 I ROOF MOUNTED EXHAUST FAN DETAIL I SCALE: N.T.S. I 02 SCALE: N.T.S.01 I CEILING DIFFUSER BRANCH DUCTS I I I LOW PRESSURE END OF SUPPLY AIR <br />SCALE: N.T.S. <br />WITH FLEX CONNECTION DUCT DETAIL <br />M200 <br />