11-361-032NOTES: HVAC
HVAC LEGEND
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TDLET
RIGID SUPPLY AIR DUCTWORK
1. THE WORK THAT IS TO BE DONE UNDER THIS HEADING INCLUDES THE FURNISHING OF ALL LABOR,
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MATERIALS, EQUIPMENT, PERMITS, FEES, INSPECTIONS, TEST, INSURANCE, ETC. REQUIRED FOR THE
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RIGID RETURN AIR DUCTWORK
COMPLETION OF THE SYSTEMS INDICTED ON THE DRAWINGS AND /OR LISTED BELOW.
2. THE CONTRACTOR SHALL VISIT THE SITE AND BECOME FAMILIAR WITH ANY AND ALL EXISTING
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CLASS I FLEXIBLE DUCT
CONDITIONS AND PROPOSED SCOPE OF WORK. THE CONTRACTOR SHALL INFORM THE
ARCHITECT /ENGINEER OF ANY DISCREPANCIES 15 DAYS PRIOR TO BID. THE NATURE OF THIS PROJECT
MAY INVOLVE THE REMODELING OF EXISTING FACILITIES.
REFRIGERANT LINE
3. INTERRUPTION OF EXISTING FACILITIES AND /0R SYSTEMS SHALL BE KEPT TO MINIMUM. OWNER SHALL
BE INFORMED OF ANY INTERRUPTIONS 24 HOURS PRIOR TO OCCURRENCE. THE CONTRACTOR SHALL
DUCT UNDER POSITIVE PRESSURE
FURNISH ALL MATERIALS, LABOR AND EQUIPMENT REQUIRED WHEN TEMPORARY CONNECTIONS OR
SERVICES ARE NECESSARY TO MAINTAIN CONTINUITY OF SYSTEMS. COORDINATE ANY INTERRUPTION OF
DU UNDER NEGATIVE PRESSURE
SYSTEMS WITH OWNER'S REPRESENTATIVE.
4. ALL DUCTWORK SHALL BE GALVANIZED SHEET METAL WITH GAUGES, UNLESS OTHERWISE IS REQUESTED
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CEILING DIFFUSER
BY OWNER. DUCT CONSTRUCTION, BRACING AND SUSPENSION IN ACCORDANCE WITH THE
RECOMMEN ATIONS SET FORTH IN THE LATEST EDITION OF THE A.S.H.R.A.E. GUIDE AND SMACNA STANDARDS.
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DUCT SIZES INDICATED ARE CLEAR INTERIOR DIMENSIONS.
RETURN AIR GRILLE
CONTRACTOR SHALL VERIFY EXACT LOCATION OF DUCTWORK COORDINATING WITH
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STRUCTURE AND OTHER TRADES PRIOR TO ANY FABRICATION TO AVOID CONFLICTS. ANY CONFLICTS
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SHALL BE REPORTED TO THE ARCHITECT /ENGINEER IMMEDIATELY. MINOR MODIFICATIONS TO DUCT
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THERMOSTAT
SIZES MAY BE DONE BY THE CONTRACTOR USING THE EQUAL FRICTION METHOD FOR DUCT SIZING.
5. ALL AIR CONDITIONING SUPPLY AND RETURN DUCTWORK SHALL BE INSULATED WITH 1 1/2" , R -6,
MANUAL VOLUME DAMPER
WRAP INSULATION WITH VAPOR BARRIER, EXCEPT FOR THE EXPOSED DUCT, (IF ANY) WHICH SHALL BE
INTERNALLY INSULATED.
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TEMPERATURE SENSOR
6. FLEXIBLE DUCT SHALL BE CONSIST OF SPRING STEEL HELIX WIRE ON 7/8" CENTERS, ENCAPSULATED
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EXHAUST FAN
IN A CONTINUOUS SOFT VINYL FILM, JOINED BY MOLECULAR WELDING TO FORMAN AIR TIGHT INNER CORE.
THE CORE SHALL BE INSULATED WITH FIBERGLAS INSULATION (R -6), AND SHEATHED IN A REINFORCED,
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ALUMINUM METALIZED POLYESTER VAPOR BARRIER JACKET. PROVIDE SPIN -IN COLLAR WITH VOLUME
MOTORIZED DAMPER
DAMPER AND EXTRACTOR WHERE FLEX DUCT IS CONNECTED TO RECTANGULAR DUCTWORK. DAMPER
ACTUATOR SHALL BE EXTENDED OUTSIDE INSULATION ON 1 " HIGH MOUNTING BRACKET.
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FIRE DAMPER
7. NOT USED.
8. CONTRACTOR SHALL SUBMIT SHOP DRAWINGS OF ALL MATERIALS AND EQUIPMENT FOR APPROVAL
POINT OF CONNECTION NEW TO EXI NG
PRIOR TO FABRICATION AND /OR ORDERING OF ANY EQUIPMENT OR MATERIALS. DUCTWORK SHOP
DRAWINGS SHALL BE Al 1 4" SCALE.
CO2 OCCUPANCY SENSOR
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FIELD FABRICATED .—r" CONNECT N /A'
MIXING BOX (INSULATED) DUCT TO EXISTING 390 CFM
(TYPICAL) 12xi 2 O/A INTAKE LOUVER O/A 00)
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