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HVAC NOTES:
HVAC LEGEND
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CONTRACTOR NOTES:
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RIGID SUPPLY AIR DUCTWORK
1.
LOW LEAKAGE MOTORIZED DAMPERS SHOULD BE INTERLOCKED WITH
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ASSOCIATED UNIT'S CO2 SENSORS TO BE NORMALLY OPEN WHEN UNITS IS
1. THE WORK THAT IS TO BE DONE UNDER THIS HEADING INCLUDES THE FURNISHING OF ALL LABOR,
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ON AND AT TIMES OF HIGH OCCUPANCY AND CLOSED WHEN UNIT IS OFF OR
MATERIALS, EQUIPMENT, PERMITS, FEES, INSPECTIONS, TEST, INSURANCE, ETC. REQUIRED FOR THE
RIGID RETURN AIR DUCTWORK
LOW OCCUPANCY TIMESAS PER SENSOR'S READINGS. PLEASE CONSULT A
COMPLETION OF THE SYSTEMS INDICTED ON THE DRAWINGS AND/OR LISTED BELOW.
CONTROL'S COMPANY FOR PROPER SEQUENCE AND INSTALLATION,
2. THE CONTRACTOR SHALL VISIT THE SITE AND BECOME FAMILIAR WITH ANY AND ALL EXISTING
CLASS I FLEXIBLE DUCT
2.
ALL FLEXIBLE DUCTS SHALL BE PROPERLY SUPPORTED AND
CONDITIONS AND PROPOSED SCOPE OF WORK. THE CONTRACTOR SHALL INFORM THE
PROVIDED A MINIMUM OF 1"SEPARATION OF DUCTWORK AND ATTIC
ARCHITECT/ENGINEER OF ANY DISCREPANCIES 15 DAYS PRIOR TO BID. THE NATURE OF THIS PROJECT
INSULATION. AT NO LOCATION SHALL DUCTWORK COME IN CONTACT
MAY INVOLVE THE REMODELING OF EXISTING FACILITIES.
REFRIGERANT LINE
WITH ATTIC INSULATION.
3. INTERRUPTION OF EXISTING FACILITIES AND/OR 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
3.
ALL CRACKS AND OPENINGS AROUND DIFFUSERS SHALL BE
SEALED TO PREVENT CONDENSATION.
FURNISH ALL MATERIALS, LABOR AND EQUIPMENT REQUIRED WHEN TEMPORARY CONNECTIONS OR
SERVICES ARE NECESSARY TO MAINTAIN CONTINUITY OF SYSTEMS. COORDINATE ANY INTERRUPTION OF
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DUCT UNDER NEGATIVE PRESSURE
4.
THE CONTRACTOR SHALL BEAR FULL RESPONSIBILITY AND
SYSTEMS WITH OWNER■S REPRESENTATIVE.
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RELATED COSTS INCLUDING FEES FOR ANY FIELD CHANGES OR
4. ALL DUCTWORK SHALL BE GALVANIZED SHEET METAL WITH GAUGES, (UNLESS OTHERWISE IS REQUESTED
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CEILING DIFFUSER
DEVIATIONS FROM CONSTRUCTION DOCUMENTS WITHOUT WRITTEN
BY OWNER.) DUCT CONSTRUCTION, BRACING AND SUSPENSION IN ACCORDANCE WITH THE
AUTHORIZATION FROM THE ARCHITECT OR ENGINEER OF RECORD.
RECOMMENDATIONS SET FORTH IN THE LATEST EDITION OF THE A.S.H.R.A.E. GUIDE AND SMACNA STANDARDS.
DUCT SIZES INDICATED ARE CLEAR INTERIOR DIMENSIONS.
R URN AIR GRILLE
ETALLA
5.
THE CONTRACTOR SHALL VERIFY ALL EXISTING CONDITIONS PRIOR
TO INST TION.
CONTRACTOR SHALL VERIFY EXACT LOCATION OF DUCTWORK COORDINATING WITH
STRUCTURE AND OTHER TRADES PRIOR TO ANY FABRICATION TO AVOID CONFLICTS. ANY CONFLICTS
SHALL BE REPORTED TO THE ARCHITECT /ENGINEER IMMEDIATELY. MINOR MODIFICATIONS TO DUCT
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" 1 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
IN A CONTINUOUS SOFT VINYL FILM, JOINED BY MOLECULAR WELDING TO FORMAN AIR TIGHT INNER CORE.
EXHAUST FAN
THE CORE SHALL BE INSULATED WITH FIBERGLAS INSULATION (R-6), AND SHEATHED IN A REINFORCED,
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.
FIRE DAMPER
7. NOT USED.
8. CONTRACTOR SHALL SUBMIT SHOP DRAWINGS OF ALL MATERIALS AND EQUIPMENT FOR APPROVAL
POINT OF CONNECTION NEW TO EXISTING
PRIOR TO FABRICATION ANY ORDERING OF ANY EQUIPMENT OR MATERIALS. DUCTWORK SHOP
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DRAWINGS SHALL BE AT 1 SCALE.
CO2 OCCUPANCY SENSOR
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