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EXTERNAL INSULATI"" <br />SHEET METAL DUCT <br />EXISTING OPENING. <br />SHEET METAL PATC <br />WITH INSULATION, <br />1-1/2" LARGER THAN <br />OPENING ON ALL SI <br />1/2" TAP SCREWS, Eti <br />4"., OR MIN. 2 PER 611 <br />WHICHEVER IS GRE> <br />RUBBER GASKET (11 <br />DUCT ONLY) TO SEAL OPENING. <br />NOTES: <br />I. FOR LINED DUCT, PATCH SHOULD <br />HAVE INSULATION ON INSIDE OVER <br />ENTIRE PATCH. THIS WILL ACT AS <br />A GASKET TO SEAL OPENING. <br />2. SEAL PERIMETER OF PATCH <br />WITH MASTIC. <br />3. FOR ROUND DUCTS USE SAME PROCEDURE <br />AS DETAIL ABOVE. <br />OISHEET METAL DUCT PATCH DETAIL <br />SCALE: NONE <br />KEYED NOTES: O <br />®EXISTING VAV BOX TO REMAIN. VERIFY OPERATION OF CONTROLS <br />AND DAMPER <br />GEXISTING DIFFUSER TO REMAIN AS INSTALLED. BALANCE TO CFM <br />LISTED ON SHEET M2. <br />® EXISTING DIFFUSER TO BE RELOCATED PER SHEET M2. <br />/I EXISTING RETURN PANEL TO BE DEMOLISHED. REFER TO M2 FOR <br />NEW RETURN PANEL LOCATIONS. <br />®EXISTING DIFFUSER AND RELATED FLEX TO REMOVED. TURN OVER <br />DIFFUSER TO OWNER. PATCH AND SEAL EXISTING DUCT PER <br />DETAIL THIS SHEET. REFER TO SHEET M2 FOR ADDITIONAL <br />INFORMATION. <br />EXISTING SUPPLY DUCT MAIN DOWN FROM EXISTING RTU-2. <br />® EXISTING RETURN DUCT MAIN DOWN FROM EXISTING RTU-2. <br />Oi EXISTIN(3 MECHANICAL PLAN <br />SCALE: 3/32" = P-0" <br />HVAC GENERAL NOTE5 I <br />I. HVAC CONTRACTOR SHALL SURVEY SITE PRIOR TO BID SUBMISSION TO <br />VERIFY ALL EXISTING CONDITIONS AND LOCATION. <br />2. VERIFY OPERATION OF ALL VAV BOXES AND RELATED THERMOSTATS <br />WITHIN THE SCOPE OF WORK AND PROVIDE REPORT TO GENERAL <br />CONTRACTOR OF ANY DEFICIENCIES AND/OR REPAIRS REQUIRED. <br />3. CLEAN AND REMOVE DUST AND DIRT FROM DIFFUSERS TO <br />LIKE NEW CONDITION. <br />HVAC: LEGEND <br />NEW SUPPLY DIFFUSER <br />NEW CEILING RETURN <br />EXISTING SUPPLY DIFFUSER <br />EXISTING RETURN GRILLE <br />VOLUME DAMPER <br />NEW RIGID DUCT <br />EXISTING RIGID DUCT <br />EXISTING FLEXIBLE DUCT <br />THERMOSTAT <br />REVISIONS <br />BY <br />Y00 <br />Y CON <br />(D <br />cO <br />U <br />o on E <br />' <br />o <br />v ro ti U <br />U <br />p r U <br />�� • 'g Lo F1 <br />U • N <br />v <br />E ' <br />� � 3 <br />3 ti 3 <br />�-' p N <br />ti <br />U � � <br />zN <br />1 <br />1 <br />1 <br />x <br />o° <br />00 <br />° ° <br />° ° <br />° <br />° ° <br />° 8-1 —13 a <br />` % S1i E OF 04, �o <br />0.0 <br />Q Off86® <br />0, <br />0000 <br />Lt) M <br />N <br />N <br />Um I2��� <br />Z a��o�o <br />Z <br />^ N O3 U <br />Q x o <br />Co <br />❑J m m0 <br />ILL � M N <br />II' <br />O <br />U <br />o 0Nw U <br />d� <br />L <br />o U <br />N <br />CJ W mLA <br />V Z M <br />U_ <br />m <br />L LJ •� <br />C } <br />C <br />C� <br />o� a•-� <br />•r <br />Z m = <br />C 0 i <br />M00 <br />LLJ <br />Z M m <br />O <br />t.J N <br />v Li <br />a - <br />Date: 08. 13. 13 <br />Scale: AS NOTED <br />Project Mgr: AAY <br />Drawn: TAF <br />Job: 13-46 <br />Sheet <br />m 1 <br />