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PER R403.7 WSEC. SYSTEM;
<br />AND C04 OF THE IECC
<br />EQUIPMENT AND APPLIANCES HAVING AN IGNITION SOURCE AND LOCATED IN A GARAGE SHALL BE
<br />ELEVATED SO THAT THE SOURCE OF IGNITION IS NOT LESS THAN 16 INCHES ABOVE THE FLOOR
<br />SURFACE PER IMC SECTION 304.3,
<br />POTABLE WATER HEATERS AND HOT WATER STORAGE TANKS SHALL DE LISTED AND LABELED AND
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<br />TABLE M1507,3.2)
<br />r FOR VENTILATION SYSTEM RUN TIME VALUES BETWEEN
<br />ARE PERMITTED TO BE DETERMINED BY INTERPOLATION.
<br />b. EXTRAPOLATION BEYOND THE TABLE IS PROHIBITED.
<br />METHOD 1, IRC M1507.3.4 E HOUSE VENTILATION USING EXHAUST FANS,
<br />Ta11507.3. I WHOLE -HOUSE VENTILATION FANS, E91AUST FANS PROVIDING MOLE HOUSE
<br />VENTILATION MALL HAVE A FLOW RATING AT 0.25 INCHES WATER GAUGE AS SPECIFIED IN TABLE
<br />M1507.13(2} MANUFACTURERS' FAN FLOW RATINGS SHALL HE DETERMINED ACCORDING TO HVI
<br />9160RAMA210.
<br />M1507.34.2 FAN NOISE. WHOLE HOUSE FANS LOCATED 4 FEET OR LESS FROM THE INTERIOR
<br />GRILLE SHALL HAVE A SONE RATING OF 1.0 OR LESS MEASURED AT 0.1 INCHES WATER GAUGE.
<br />MANUFACTURER'S NOISE RATINGS SHALL BE DETERMINED AS PER HVI 915 (MARCH 2O09).
<br />REMOTELY MOUNTED FANS SHALL BE ACOUSTICALLY ISOLATED FROM THE STRUCTURAL ELEMENTS
<br />OF THE BUILDING AND FROM ATTACHED DUCT WORK USING INSULATED FLEXIBLE DUCT OR OTHER
<br />APPROVED MATERIAL,
<br />M1507.3.4.3 FAN CONTROLS. THE WHOLE HOUSE VENTILATION FAN SHALL MEET THE
<br />REQUIREMENTS OF SECTION M1507.3.2 AND M1507.3.2.1.
<br />M1507.34.4 VENTILATION OPENINGS. EACH HABITABLE SPACE SHALL BE PROVIDED WITH OUTDOOR AIR
<br />INLETS OR OPERABLE WINDOWS WITH AN OPENABLE AREA NOT LESS THAN 4 SQUARE INCHES OF NET
<br />FREE AREA OF OPENING FOR EACH 10 CFM OF OUTDOOR AIR REQUIRED BY TABLE M1507a3.31). WHERE
<br />OUTDOORAIR SUPPLIES ARE SEPARATED FROM EXHAUST POINTS BY DOORS, PRO\nsIC SHA BE
<br />MADE TO ENSURE AIR FLOW BY INSTALLATION OF DISTRIBUTION DUCTS, UNDERCUTTING DOORS,
<br />INSTALLATION OF GRILLES, TRANSOMS, OR SIMILAR MEANS. DOORS SHALL BE UNDERCUT TO A MINIMUM
<br />OF 1/2 INCH ABOVE THE SURFACE OF THE FINISH FLOOR COVERING,
<br />INDIVIDUAL ROOM OUTDOOR AIR INLETS SHALL:
<br />1. HAVE CONTROLLABLE AND SECURE OPENINGS,
<br />2. BE SLEEVED OR OTHERWISE DESIGNED SO AS NOT TO COMPROMISE THE THERMAL PROPERTIES
<br />OF THE MALL OR WINDOW IN WHICH THEY ARE PLACED;
<br />3. ANY INLET OR COMBINATION OF INLETS WHICH PROVIDE 10 CFM AT 10 PASCALS ARE DEEMED
<br />EQUIVALENT TO 4 SQUARE INCHES NET FREE AREA.
<br />VENTILATION OPENING SHALL BE SCREENED OR OTHERWISE PROTECTED FROM ENTRY BY LEAVES OR
<br />OTHER MATERIAL, OPENINGS SHALL BE CONTROLLABLE, SECURABLE AND SHALL BE DESIGNED TO
<br />NOT COMPROMISE THE THERMAL PROPERTIES OF THE BUILDING ENVELOPE. VENTILATION OPENINGS
<br />SHALL BE LOCATED SO AS NOT TO TAKE AIR FROM THE FOLLOWING AREAS:
<br />1. CLOSER THAN 10 FEET FROM AN APPLIANCE VENT OUTLET, UNLESS SUCH VENT OUTLET IS 3
<br />FEET ABOVE THE OUTDOOR AIR INLET.
<br />2. WHERE IT WILL PICK UP OBJECTIONABLE ODORS, FUMES OR FLAMMABLE VAPORS,
<br />3. A HAZARDOUS OR UNSANITARY LOCATION.
<br />4. A ROOM OR SPACE HAVING ANY FUEL -BURNING APPLIANCES THEREIN.
<br />5. CLOSER THAN 10 FEET FROM A VENT OPENING OF A PLUMBING DRAINAGE SYSTEM UNLESS THE
<br />VENT OPENING IS AT LEAST 3 FEET ABOVE THE AIR INLET,
<br />6. ATTIC, CRAWL SPACES, OR GARAGES.
<br />7. ASPHALT ROOFS UNLESS IT IS SHOWN THAT NO OTHER LOCATION IS PERMISSIBLE, IN SUCH
<br />CASES THE INLET OPENING SHALL BE LOCATED A MINIMUM OF 2 FEET FROM THE NEAREST
<br />SURFACE OF THE ASPHALT ROOFING, MEASURED FROM THE INTAKE OPENING.
<br />METHOD 2, M1507>3.5,1 INTEGRATED WHOLE HOUSE VENTILATION SYSTEMS. INTEGRATED
<br />WHOLE -I OUSE VENTILATION SYSTEMS SHALL PROVIDE OUTDOOR AIR AT THE RATE CALCULATED
<br />USING SECTION M1507.3.3. INTEGRATED FORCED -AIR VENTILATION SYSTEMS SHALL DISTRIBUTE
<br />OUTDOOR AIR TO EACH HABITABLE SPACE THROUGH THE FORCED -AIR SYSTEM DUCTS, INTEGRATED
<br />FORCED -AIR VENTILATION SYSTEMS SHALL HAVE AN OUTDOOR AIR INLET DUCT CONNECTING A
<br />TERMINAL ELEMENT ON THE OUTSIDE OF THE BUILDING TO THE RETURN AIR PLENUM OF THE
<br />FORCED -AIR SYSTEM, AT A POINT WITHIN 4 FEET UPSTREAM OF THE AIR HANDLER, THE OUTDOOR
<br />AIR INLET DUCT CONNECTION TO THE RETURN AIR STREAM SHALL BE LOCATED UPSTREAM OF THE
<br />FORCED -AIR SYSTEM BLOWER AND SHALL NOT BE CONNECTED DIRECTLY INTO A FURNACE CABINET
<br />TO PREVENT THERMAL SHOCK TO THE HEAT EXCHANGER; THE SYSTEM WILL BE EQUIPPED NTH A
<br />MOTORIZED DAMPER CONNECTED TO THE AUTOMATIC VENTILATION CONTROL AS SPECIFIED IN
<br />SECTION M1507.3,2. THE REQUIRED FLOW RATE SHALL BE VERIFIED BY FIELD TESTING WITH A FLOW
<br />HOOD OR A FLOW" TREASURING STATION,
<br />M15073.5,2 VENTILATION DUCT INSULATION. ALL SUPPLY DUCTS IN THE CONDITIONED SPACE
<br />SHALL 9E INSULATED TO A MINIMUM OF R®4,
<br />M1507.3.5.3 OUTDOOR AIR INLETS, INLETS SHALL BE SCREENED OR OTHERWISE PROTECTED FROM
<br />ENTRY BY LEAVES OR OTHER MATERIAL, OUTDOOR AIR INLETS SHALL HE LOCATED SO AS NOT TO
<br />TAKE AIR FROM THE FOLLOWING AREAS.
<br />1. CLOSER THAN 10 FEET FROM AN APPLIANCE VENT OUTLET, UNLESS SUCH VENT OUTLET IS 3
<br />FEET ABOVE THE OUTDOOR AIR INLET,
<br />2. WHERE IT MI I PICK UP OBJECTIONABLE ODORS, FUMES OR FLAMMABLE VAPORS.
<br />3, A HAZARDOUS OR UNSANITARY LOCATION,
<br />4. A ROOM OR SPACE HAVING ANY FUEL -BURNING APPLIANCES THEREIN.
<br />5. CLOSER THAN 10 FEET FROM A VENT OPENING OF A PLUMBING DRAINAGE SYSTEM UNLESS THE
<br />VENT OPENING IS AT LEAST 3 FEET ABOVE THE AIR INLET.
<br />6. ATTIC, CRAWL SPACES, OR GARAGES.
<br />METHOD J3, M150746, MOLE HOUSE VENTILATION USING A SUPPLY FAN. SUPPLY FAN
<br />VENTILATION SYSTEMS SHALL DISTRIBUTE OUTDOOR AIR TO EACH HABITABLE SPACE THROUGH THE
<br />FORCED -APR SYSTEM DUCTS OR THROUGH DEDICATED DUCTS TO EACH HABITABLE SPACE, SUPPLY
<br />FANS SHALL HAVE THE CAPACITY TO PROVIDE THE AMOUNT OF OUTDOOR AIR SPECIFIED IN TABLE
<br />M1507.a.3(1) AT 0.40 INCHES WATER GAUGE AS PER HVI 916. THE OUTDOOR AIR MUST BE
<br />FILTERED BEFORE IT IS DELIVERED TO HABITABLE SPACES THE FILTER MAY BE LOCATED AT THE
<br />INTAKE DEVICE, IN LINE WITH THE FAN, OR, IN THE CASE OF A CONNECTION TO THE RETURN
<br />PLENUM OF THE AIR HANDLER, USING THE FURNACE FILTER. AN OUTDOOR AIR INLET SHALL BE
<br />CONNECTED TO EITHER THE SUPPLY OR RETURN AIR STREAM.
<br />M1507.3.6.2 DUCTS, AN OUTDOOR AIR INLET DUCT CONNECTION TO THE SUPPLY AIR STREAM SHALL
<br />BE LOCATED DOWNSTREAM OF THE FORCED -AIR SYSTEM BLOWER. IF CONNECTED TO THE RETURN AIR
<br />STREAM IT SHALL BE LOCATED AT LEAST 4 FEET UPSTREAM OF THE FORCED -AIR SYSTEM BLOWER
<br />AND ITS FILTER, NEITHER SHALL BE CONNECTED DIRECTLY INTO A FURNACE CABINET, THE DUCT
<br />MALL BE SIZED IN ACCORDANCE WITH TABLE M17,3.6.2. THE TERMINAL ELEMENT ON THE OUTSIDE
<br />OF THE BUILDING SHALL BE SIZED 2 INCHES DIA, LARGER THAN THE OUTDOOR AIR INLET DUCT.
<br />TABLE M1507.3.6.2
<br />PRESCRIPT VE SUPPLY FAN DUCT SIZING
<br />SUPPLY FAN TESTED CFM AT 0.40 WIT
<br />SPECIFIED
<br />MINIMUM
<br />MINIMUM
<br />VOLUME FROM
<br />SMOOTH DUCT
<br />FLEXII-F DUCT
<br />TABLE
<br />DIAMETER
<br />DIAMETER
<br />M1507.3.3(1)
<br />- _4
<br />-5INCH -
<br />5OG90�1r
<br />INCH
<br />-
<br />90-150cfm
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<br />5INCH
<br />-
<br />6INCH
<br />- `
<br />150-120ch
<br />6 INCH
<br />7 INCH
<br />j.j50-4OOcfm__j
<br />7 INCH j
<br />R INCH
<br />M1507.3.6.3 DAMPERS. THE SYSTEM SHALL HE EQUIPPED WITH A BACK -DRAFT DAMPER AND ONE
<br />OF THE FOLLOWING:
<br />1, A CALIBRATED MANUAL VOLUME DAMPER INSTALLED AND SET TO MEET THE MEASURED FLOW
<br />RATES SPECIFIED IN TABLE M1507.3.3(1) BY FIELD TESTING NTH A PRESSURE GAUGE AND/OR
<br />FOLLOWING MANUFACTURER'S INSTALLATION INSTRUCTIONS; OR
<br />2. A MANUAL VOLUME DAMPER INSTALLED AND SET TO MEET THE MEASURED FLOW RATES
<br />SPECIFIED IN TABLE M1507.3.3(1) BY FIELD TESTING WITH A FLOW! HOOD OR A FLOW MEASURING
<br />STATION; OR
<br />3. AN AUTOMATIC FLOW -REGULATING DEVICE SIZED TO THE SPECIFIED FLOW RATES IN TABLE
<br />M1507.3,3(1) WHICH PROVIDES CONSTANT FLOW OVER A PRESSURE RANGE OF 0.20 TO 0.60
<br />INCHES WATER GAUGE,
<br />M1507.3.6.4 VENTILATION DUCT INSULATION, ALL SUPPLY DUCTS IN THE CONDITIONED SPACE
<br />SHALL BE INSULATED TO A MINIMUM 9F R-4.
<br />M1507.3>695 OUTDOOR AIR INLETS, INLETS SHALL BE SCREENED OR OTHERWISE PROTECTED FROM
<br />ENTRY BY LEAVES OR OTHER MATERIAL, OUTDOOR AIR INLETS SHALL BE LOCATED SO AS NOT TO
<br />TAKE AIR FROM THE FOLLOWING AREAS:
<br />1, CLOSER THAN 10 FEET FROM AN APPLIANCE VENT OUTLET, UNLESS SUCH VENT OUTLET IS 3
<br />FEET ABOVE THE OUTDOOR AIR INLET.
<br />1 WHERE IT WILL PICK UP OBJECTIONABLE ODORS, FUMES OR FLAMMABLE VAPORS,
<br />1 A HAZARDOUS OR UNSANITARY LOCATION.
<br />4. A ROOM OR SPACE HAVING ANY FUEL -BURNING APPLIANCES THEREIN.
<br />5. CLOSER THAN 10 FEET FROM A VENT OPENING OF A PLUMBING DRAINAGE SYSTEM UNLESS THE
<br />VENT OPENING IS AT LEAST 3 FEET ABOVE THE AIR INLET.
<br />6. ATTIC, CRAW. SPACES, OR GARAGES,
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<br />VAPOR COOKING a IS PRODUCED. LOCAL EXHAUST SYSTEMS SHALL BE DESIGNED
<br />THE CAPACITY TO EXHAUST
<br />TABLE IRC M1507.4 MINIMUM REQUIRED EXHAUST RATES TABLE M1507.4. ONE
<br />& TWO FAMILY DWELLINGS
<br />AREA 70 BE
<br />KITCHENS
<br />s
<br />ROOMSFiA MECHANICAL EXHAUST
<br />LAUNDRY CAPACITY
<br />POOLS11100OR SWIMMING
<br />i 20 `.'. CONTINUOUS
<br />,.
<br />FOR SI:1 CUBIC FOOT PER MINUTE = O.00047191M'/s
<br />M1507.4.1 LOCAL EXHAUST FANS. EXHAUST FANS PROVIDING LOCAL EXHAUST SHALL HAVE A
<br />MINIMUM FAN FLOW RATING NOT LESS THAN 50 CFM AT 0,25 INCHES WATER GAUGE FOR
<br />BATHROOMS, LAUNDRIES, OR SIMILAR ROOMS AND 100 CFM AT 0.25 INCHES WATER GAUGE FOR
<br />KITCHENS. MANUFACTURERS FAN FLOW RATINGS SHALL BE DETERMINED AS PER HVl 916 (APRIL
<br />1995 OR AMCA 2M
<br />EXC TION: WHERE A RANGE HOOD OR DOWN DRAFT EXHAUST FAN IS USED TO SATISFY THE
<br />LOCAL EXHAUST REQUIREMENTS FOR KITCHENS, THE RANGE HOOD OR DOWN DRAFT EXHAUST
<br />SHALL NOT BE LESS THAN 100 CFM AT 0.10 INCHES WATER GAUGE,
<br />M1507.4,2 LOCAL EXHAUST CONTROLS. LOCAL EXHAUST SYSTEMS SHALL BE CONTROLLED BY
<br />MANUAL SWITCH EHU IDISTAT TIMERS OR O P U ES, D M S, �, OTHER APPROVED MEAN,. LOCAL EXHAUST
<br />SYSTEM CONTROLS SHALL BE READILY ACCESSIBLE,
<br />U-94&IM16: DUCT SYS MS FWASHINGTON AMENDMENiT
<br />IRC M1601.1 DUCT DESIGN, DUCT SYSTEMS SERVING HEATING COOLING AND VENTILATION EQUIPMENT SHALL
<br />BE INSTALLED IN ACCORDANCE WITH THE PROVISIONS OF THIS SECTION AND ACCA MANUAL D OR OTHER
<br />APPROVED METHODS.
<br />M16D1.1,1 ABOVEGROUND DUCT SYSTEMS. ABOVE -GROUND DUCT SYSTEMS SHALL CONFORM TO THE
<br />FOLLOWING:
<br />1, EQUIPMENT CONNECTED TO DUCT SYSTEMS SHALL BE DESIGNED TO LIMIT DISCHARGE AIR TEMPERATURE
<br />TO A MAXIMUM OF 250T (121-C .
<br />2. FACTORY -MADE DUCTS SHAL. UE LISTED AND LABELED IN ACCORDANCE WITH UL 161 AND INSTALLED IN
<br />ACCORDANCE NTH THE MANUFACTURER'S INSTRUCTIONS.
<br />3. FIBROUS DUCT CONSTRUCTION SHALL CONFORM TO THE SMACNA FIBROUS GLASS DUCT CONSTRUCTION
<br />STANDARDS OR NAIMA FIBROUS GLASS DUCT CONSTRUCTION STANDARDS.
<br />4. FIELD -FABRICATED AND SHOP -FABRICATED METAL AND FLEXIBLE DUCT CONSTRUCTIONS SHALL CONFORM
<br />TO THE SMACNA HVAC DUCT CONSTRUCTION STANDARDS -METAL AND FLEXIBLE, EXCEPT AS ALLOWED BY
<br />TABLE M1601.1.1. GALVANIZED STEEL SHALL CONFORM TO AS1M A 651
<br />5, USE OF GYPSUM PRODUCTS TO CONSTRUCT RETURN AIR DUCTS OR PLENUMS IS PERMITTED, PROVIDED
<br />THAT THE AIR TEMPERATURE DOES NOT EXCEED 1._5f (52-0) AND EXPOSED SURFACES ARE NOT SUB CT
<br />TO CONDENSATION.
<br />6, DUCT SYSTEMS SHALL BE CONSTRUCTED OF MATERIALS HAVING A FLAME SPREAD INDEX NOT GREATER
<br />THAN 200,
<br />7. STUD WALL CAVITIES AND THE SPACES BEEN SOLID FLOOR JOISTS SHALL NOT BE USED AS A DUCT
<br />OR AN AIR PLENUM IN NEW CONSTRUCTION. FOR EXISTING SYSTEMS, STUD WALL CAVITIES AND THE
<br />SPACES BETWEEN SOLID FLOOR JOISTS TO BE USED AS AIR PLENUMS SHALL COMPLY WITH TIE FOL LOWING:
<br />71 THESE CAVITIES OR SPACES SHALL NOT BE USED AS A PLENUM FOR SUPPLY AIR.
<br />7.2. THESE CAVITIES OR SPACES SHALL NOT BE PART OF A REQUIRED FIRE -RESISTANCE -RATED
<br />ASSEMBLY.
<br />73. STUD WALL CAVITIES SHALL NOT CONVEY AIR FROM MORE THAN ONE FLOOR LEVEL,
<br />7.4. STUD WALL CAVITIES AND JOIST -SPACE PLENUMS SHALL BE ISOLATED FROM ADJACENT CONCEALED
<br />SPACES BY TIGHT -FITTING FIRE BLOCKING IN ACCORDANCE WITH SECTION R602.8.
<br />7.5. STUD WALL CAVITIES IN THE OUTSIDE WALLS OF BUILDING ENVELOPE ASSEMBLIES SHALL NOT BE
<br />UTILIZED AS AIR PLENUMS.
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