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MECHANICAL LEGEND <br />TYPE <br />REMARK <br />EXIST. <br />z <br />EXISTING 2'x2'RETURN AIR DIFFUSER <br />TO REMAIN <br />EXIST. <br />1 <br />EXISTING 2'x2' AIR SUPPLY DIFFUSER <br />TO REMAIN <br />EXIST. <br />® <br />12"x 8" AIR SUPPLY GRILL <br />TO REMAIN <br />O <br />EXISTING EXHAUST FAN-EF1 <br />IN BATHROOM <br />TO REMAIN <br />® <br />NEW EXHAUST FAN-EF2 <br />PROVIDE 750 CFM <br />HANG ON CEILING <br />JOIST <br />® <br />NEW EXHAUST VENT <br />— — — <br />SHEET METAL HARD DUCT <br />FOR EXHAUST FAN. SIZE IS SHOWN <br />ON PLAN <br />NOTE: THIS FACILITY HAS EXISTING HVAC SYSTEM. <br />ALL EXISTING AIR RETURN, AIR SUPPLY GRILLS <br />AND HVAC DUCT SHALL REMAIN AS IT IS. <br />NO ADDITIONAL HVAC WORK IS REQUIRED <br />REFERENCE NOTES <br />O EXISTING 5 TON RTU-1 TO REMAIN. LOCATION IS NOT SHOWN ON <br />THIS PLAN <br />O EXISTING SUPPLY/RETURN AIR DUCTS DOWN FROM RTU-1 TO <br />REMAIN AS IT IS. <br />O EXISTING EXHAUST FAN IN EXISTING BATHROOM TO REMAIN AS IT IS <br />O NEW EXHAUST FAN EF-2 TO BE INSTALLED AT PEDICURE ARE <br />WITH HARD METAL DUCT ( SIZE ARE SHOWN ON PLAN) THRU THE <br />BACK WALL <br />OPROVIDE 8" DIA HARD METAL DUCT THRU THE BACK WALL FOR <br />EXHAUST FAN EF-2 <br />© DRYER MACHINE VENT IS EXISTING AND SHALL REMAIN AS IT IS <br />FAN SCHEDULE FOR SALON <br />MARK <br />TYPE <br />CFM <br />DRIVE <br />MOTOR DATA <br />SERVICE <br />NOTE <br />VOLT. <br />PH <br />EF-2 <br />CEILING EXHAUST <br />700 <br />DIRECT <br />115 <br />1 <br />NAILS STATIONS <br />1,2 <br />1. PROVIDE WITH BACKDRAFT DAMPER. DISCONNECT SWITCH <br />2. FANS PROVIDED BY OWNER/CONTRACTOR INSTALLED BY MECH. CONTRACTOR. <br />MECHANICAL VENTILATION CALCULATION <br />NUMBER OF NAIL <br />STATIONS <br />CFM REQUIRED PER STATION <br />FBC-MECHANICAL TABLE 403.3 <br />CFM REQUIRED <br />NAIL STATIONS <br />14 <br />50 CFM CONTINUOUS PER STATION <br />700 CFM <br />OR NET AREA OF NAILS STATION = 612 SF <br />0.6 CFM / SF <br />367.2 CFM <br />CFM PROVIDED BY EF-2 = 700CFM = OK <br />TOTAL CFM VENTILATION REQUIRED <br />700CFM <br />AIR BALANCE SUMMARY (CFM) <br />MARK <br />SUPPLY <br />AIR <br />RETURN <br />AIR <br />OUTSIDE <br />AIR <br />EXHAUST <br />AIR <br />PRESSURE <br />SERVING <br />RTU-1 <br />2000 <br />1250 <br />750 <br />_ <br />+750 <br />SALON AREA <br />EF-2 <br />-- <br />- <br />-- <br />700 <br />-700 <br />NAILS STATION <br />TOTAL <br />+50 <br />OUT DOOR AIR REQUIRED (CFM) CALCULATION <br />TABLE 403.3 FMC-2010 <br />PEOPLE OUTDOOR AIRFLOW RATE IN <br />BREATHING ZONE, Rp CFM/PERSON <br />OUTSIDE AIR REQUIRED <br />No OF PEOPLE = 14 <br />Pz=14 <br />20 CFM/ PERSON <br />280 CFM/ PERSON <br />AREA OUTDOOR AIRFLOW RATE IN <br />BREATHING ZONE, Ra CFM/FT2 <br />OUTSIDE AIR REQUIRED <br />Az = 1400 SF <br />0.12 CFM/ SF <br />168 CFM/ SF <br />TOTAL REQUIRED = 280 CFM + 168 CFM = 448 CFM <br />NOTE: <br />AIR SUPPLY AND RETURN ARE <br />NOT REQUIRED IN THIS ROOM <br />SINCE THE TOP OF THE WALL <br />IS 24" FROM THE CEILING <br />SEE SHEETA-1 FOR DETAIL <br />EF-1 <br />0 <br />8"0 HARD DUCT WALL CAP WITH <br />SCREEN W / FLAPPER PENETRATE <br />SIDE WALL, TO BE FINISHED TO <br />MATCH ADJACENT C ND <br />WATERTIGHT FO XHAU T FAN, <br />STAY 10' FROM NY AIR I AKE <br />EXIST. <br />O <br />O <br />EXIS I EXIST. <br />O � O <br />a <br />E F-2 <br />r iI 7-L� <br />M-4„O <br />I <br />B-4110 — — — 4" 0-0 <br />IS:XIS <br /><0 1 0 <br />O <br />80) <br />I� <br />4"0 4"0 <br />EXIST. ( EXIST. <br />O � O <br />4„� y-4-0---� <br />NEW 8" DIA. METAL <br />—HARD DUCT VENT <br />ABOVE CEILING <br />4' IXCJI 1 4„-0 suzsawcmv y <br />EXIST. ,f, EXIST. <br />O O <br />ram <br />I <br />GENERAL HVAC NOTES: <br />1. THIS DRAWING DEPICTS THE REQUIRED HVAC SCOPE OF WORK. ALL WORK SHOWN IS <br />ASSOCIATED WITH NEW CONSTRUCTION. <br />2. ALL WORK SHALL BE DONE IN ACCORDANCE WITH THE 2010 FL. MECHANICAL/ BUILDING <br />CODES; NFPA 90A AND 101; ASHRAE; SMACNA; NEC; AND ORANGE COUNTY FLORIDA. <br />3. CONTRACTOR SHALL OBTAIN THE NECESSARY PERMITS AND PAY THE ASSOCIATED FEES. <br />4. COORDINATE ALL WORK WITH THE OWNER AND ALL TRADES. <br />5. ALL MECHANICAL WORK SHALL BE INSTALLED BY A FLORIDA LICENSED MECHANICAL CONTRACTOR. <br />6. ALL EXHAUST DUCT SHALL BE SHEET METAL HARD DUCT <br />EXHAUST FAN HANGIN <br />BRACKET(ADJUSTABLE) <br />CEILING MOUNTED <br />N.T.S <br />METAL STRAF <br />1-1/2" MINIMU <br />4' SPACING <br />DUCT SUPPORT <br />SCALE: N.T.S. <br />SEAL PENETf <br />SHEET METAL DUC <br />SIZE AS SHOWN 0 <br />EXTERIOR WALL <br />N TS <br />MECHANICAL PLAN <br />SCALE: 1 /4"=1'-0" <br />3/8" ALL THREADED ROD <br />W/ NUT AND WASHER AT <br />EACH END ( TOTAL OF 4 RODS) <br />SHEET METAL <br />EXHAUST DUCT <br />TYPICAL EXHAUST FAN <br />WITH BACK DRAFT <br />DAMPER <br />EXHAUST FAN <br />EXTERIOR WALL <br />SEALAND ALL AROUND <br />SHEET METAL BOX TO BE 1-1/2" MIN. <br />LARGER THAN SLEEVE <br />BACKDRAFT DAMPER FOR DRYER ONLY <br />CONTRACTOR TO PAINT W/ <br />WEATHER RESISTANT PAINT <br />COLOR TO BE COORD. / ARCH/ OWNER <br />SEALANT ALL AROUND <br />PENETRATION DETAIL <br />O <br />E� <br />a <br />coo <br />W <br />Q <br />H <br />Q <br />ao <br />o c <br />o 'b <br />N O <br />U U <br />U <br />o� <br />a) <br />LO <br />0 <br />ago EIrl <br />o <br />b0 <br />o t!1 O <br />W C <br />� <br />o <br />ro ti <br />G 3-' <br />f7i E l ',r <br />n <br />ti cL O <br />PROFESSIONAL SEAL <br />Q U pC'�%'�% <br />GEN <br />No.70935 <br />R O <br />illlll <br />Date: 2-18-14 <br />r� <br />� O <br />a <br />as <br />O �oN <br />T l <br />DRAWN <br />KL <br />CHECKED <br />KL <br />CAD FILE <br />M-1 <br />PROJECT <br />DRAWING NUMBER <br />M-I <br />DATE <br />2-18-14 <br />