JM Aerofoil Bifurcated Fans

Transcription

1 JM Aerofoil Bifurcated Fans

2 JM AEROFOIL - BIFURCATED CONTENTS The Bifurcated Fan Range - Introduction 3 Applications 4 Specification 5 Forms of Running, Test Methods & Quality Systems 6 Guide To Fan Selection 7 Bifurcated Fan - Series 33 Motor Frame Size Schedules:- C Continuous 9 2 C Contnuous 1 Page: Performance Curves SK Dimensions & Weights - Series Dimensions & Weights - JM 26 Ancillaries

3 JM AEROFOIL - BIFURCATED INTRODUCTION Woods Air Movement Limited has made Axial flow fans for specialist applications and arduous environments for over years. As an acknowledged leader within the industry we have developed a series of bifurcated cased axials, utilising the improved performance JM Aerofoil range and taking into account the two most important factors to be considered - safety and economy. All fans are of the highest quality, built to the latest British and International standards, and incorporating motors rated in accordance with BS5 Part 99 and IEC This catalogue details the range of pre-designed products available with a Bifurcated casing. Other product variants are available on an individual order basis, please enquire of your local sales office if extra information is required. (For details visit The JM AEROFOIL Bifurcated Range JM This catalogue contains the complete range of JM Aerofoil Bifurcated fans, either for + C or +2 C continuous operation, from 4 mm to mm diameter. The impeller pitch angles are factory set to individual performance requirements. JM Series 33 This is our range of small bifurcated fans and consists of 15mm, 25mm and 3mm diameters for temperatures of 2 C. For our range of continuous operation high temperature smoke clearance bifurcated fans please see Fans in Fire Safety catalogue ref: C1 or contact your nearest sales office. FANS AVAILABLE FROM WOODS AIR MOVEMENT Axial Flow Fans - for standard and smoke clearance applications Roof Units - for standard and smoke clearance applications Varofoil - variable pitch in motion fans Centrifugal Fans - industrial & commercial In Line Centrifugal Mixed Flow Fans Plate Mounted Fans OTHER BIFURCATED RANGES Large Bifurcated Range For higher duties there is our large J bifurcated fan 4" (125mm) diameter. For full details please enquire at your nearest sales office. Partnership Collection & Standard Range The Partnership Collection and Standard Range are specific products available on fast lead times to satisfy your requirements. Details can be found in publication number PC/CORP. Series 33 Bifurcated fan 3

4 JM AEROFOIL - BIFURCATED APPLICATION THE JM BIFURCATED FAN The JM Aerofoil Bifurcated fan has been developed to handle; wet or dirty atmospheres, hot gases, emergency smoke clearance, dust laden air. The motor is isolated from the main air stream by a tunnel which extends to the side of the main fan casing only. The motor is cooled by air directly over its carcass by means of a cooling fan mounted on a shaft extension at the tail end. An air splitter in the tunnel separates the incoming cool air from the outgoing warm air. On sizes 4 mm to 1 mm the mouth of the tunnel is spigotted so that an extension duct giving access to normal atmosphere can be fitted in cases where the fan is mounted inside equipment, such as a drier, where air is required from another area lower than ambient for motor cooling. MOTOR COOLING AIR OUTLET TERMINAL BOX MOTOR COOLING INLET MOTOR PROTECTION TUNNEL AIRFLOW FORM B ONLY JM IMPELLER 4/5 fl BIFURCATED DUCT COOLING FAN TYPICAL APPLICATIONS Temperature Range Different sizes of fan are rated for different maximum temperature as in the table below:- Maximum Temperature C 2 C C* 15-3 mm X X 4-1 mm X X *Special - made to order only Mists and Condensation The Bifurcated fan is capable of handling mists up to 1 % relative humidity. When there is a danger of vapour condensing out in the fan duct 15 mm to 5mm diameter fans should not be mounted horizontally due to their case design. All ducts should be laid to a slight fall to facilitate drainage. Dusts Where there is a danger of dusts building up around the motor of a standard axial fan the Bifurcated fan eliminates this problem with its motor out of the airstream. Care must be taken to maintain minimum velocities for the conveying of dusts in the air stream. (If the dust causes a change from standard air density (1.2 kg/m 3 ) please refer to your nearest sales office). Flammable Gases With the additional fitting of a spark minimising impeller track, the fans are suitable for Group 2A and 2B gases. The fan must be mounted outside of the hazardous area. The shaft seal must be correctly maintained. Corrosive Chemicals The Bifurcated fan is suitable for some mild chemicals that will not corrode the galvanised casing or the seal of the motor shaft through the case. Additional protection can be provided by an epoxy paint finish. Please refer corrosive chemicals such as acids and solvents to ourselves where we can advise on the suitability of the fan. 4

5 JM AEROFOIL - BIFURCATED SPECIFICATION Motors Constructed from aluminium as standard with special stud and pad mounting fixings. Suitable for horizontal through to vertical shaft operation. Supplied IP55 Insulation is Class F, with Class F temperature rise. Bearing lubricated with wide temperature range grease, relubricatable or sealed for life bearings dependant on size. The motor is cooled by ambient air drawn into the tunnel which extends to the side of the casing, and is suitable for continuous operation for up to 4 C ambient. Speed Control Woods do not offer speed control for the bifurcated fan by conventional electronic or autotransformer speed control. This is due to the motor construction. For inverter drive applications enquire at Colchester. Starting Standard three phase motors of 5.5 kw outputs and above are usually provided with Star/Delta starting connections. Electrical Supply 23 V +1/-6 %; 5Hz; single phase (1φ )* 4 V +1/-6 %; 5Hz; three phase (3φ ) (6Hz and other voltages are available on request). Casings The JM Aerofoil Bifurcated design is generally similar to a normal axial flow fan, but the motor is isolated from the main air stream by a tunnel which extends to the side of the fan casing. The casing of the 15mm to 5mm diameter sizes have an enlarged bore located around the motor to permit adequate cross sectional area for air to flow round the motor tunnel. The 63 mm to 1 mm diameter sizes have casings of constant diameter. Impellers Small Bifurcated 15 mm - 3 mm Cast aluminium silicon one piece with fixed aerofoil section blade. Large Bifurcated 4 mm - 1 mm High pressure die and clamp plate, with equally spaced, fully adjustable, high pressure die cast section blades. All rotating aluminium components are X-ray examined prior to machining to ensure quality. Balanced to BS661 Part (ISO ) Grade G6.3. Ancillaries Guards to comply with BS4 Pt 5. and draft ISO standards. 2 speed switch for Delta/Star reconnection Silencers Mounting feet for both horizontal and vertical mounting Matching Flanges. Flexible Connectors. Air Operated Dampers.** Bellmouth inlets. ** Vibration Isolators. Finish Standard: The fan casing, mounting feet, matching flanges and guards are all hot dipped galvanised after manufacture, (in accordance with BS729:1971). Motors, aluminium self finish, or painted to motor manufacturers specification. Non Standard: For more corrosive conditions the fans can be treated at extra cost with an epoxy paint finish. The maximum temperature for this finish is +12 C (continuous). Additional Extra Features Epoxy Paint System Finish. Non Standard Voltages. Motor Thermistors. Motor Thermostats or Thermal Switches. Motor anti-condensation Heaters. Spark Minimising Feature. * Available 15 mm - 3 mm only ** Available 4 mm - 1 mm only 5

6 JM AEROFOIL - BIFURCATED FORMS OF RUNNING, TEST METHODS & QUALITY SYSTEMS The direction of airflow through the fan and the mounting position are defined as the Form of Running. Woods only offer Form B running bifurcated fans as Form A fans have a marked loss in performance. For vertical operation add suffix U for airflow up, or suffix D for airflow down. Arrows indicating correct rotation and the direction of air flow are incorporated on the fan duct nameplate. Single Stage Form B Form BU Form BD Two Stage For Two Stage selections, please refer your enquiry to a Woods representative. Form B/B Testing The air and sound performance data has been measured by the latest version of British and International Standards:- ISO 51 category D (fully ducted) method for testing air performance (supercedes BS4 Pt1 19). BS4 Pt 2 195, method of noise testing. It is essential, when comparing fan performances, that the same installation category and test standards are used at all times. Acoustic Data The sound levels quoted are based on tests carried out under the Woods certified laboratory conditions. Using the spectrum corrections stated on each performance chart, an unweighted sound power spectrum can be obtained for the fan. Motor Ratings The motor ratings, starting, full load currents and speeds refer to the maximum output of the motor. When the impeller does not require the full output, the power and current will be less than the maximum quoted. Anechoic Test Suite at Colchester Quality Systems Woods Air Movement are committed to Quality Assurance. Registered to BS EN ISO 91.94, N.A.T.O. Quality Standard AQAP-1 Edn 3. BS EN ISO registration means that Woods design is quality assured as well as the manufacture. Our commitment to Quality Assurance doesn't stop with the hardware. The performance data comes from standard tests carried out in Woods own laboratory which is BSI (CAME) and AMCA accredited. A JM Aerofoil Bifurcated fan can be bought with the confidence, as with all Woods products, that it will achieve the published performance data and match the assured quality. All the Woods JM Aerofoils are fitted with IP55 motors as standard, and come with a 2 year guarantee. 6

7 JM AEROFOIL - BIFURCATED GUIDE TO FAN SELECTION Within this publication there is all the information that you will require to make a full technical selection with fan, motor, electrical and acoustical details. The method of selection is the same as the standard JM Aerofoil fan, as detailed in our publication JM/SS pages 1 to 13. If you should require any further information or options that are not within this catalogue please contact your nearest sales office. PERFORMANCE JM Aerofoil Bifurcated Fans - 4JM - 1JM 1 6 4JM/2/2/6 5JM/2/2/6 1JM//4/6 4 63JM/2/4/6 JM/2/4/6 Total Pressure Pa JM/2/4/6 5JM/2/4/6 5JM//4/5 4JM//4/5 63JM/2/6/6 JM/2/6/6 1JM/25/6/ Volume Flow Rate m 3 /s 7

8 JM AEROFOIL - BIFURCATED SERIES 33 Fan Sizes 15 mm to 315 mm The Woods Series 33 Bifurcated fan of steelplate construction exhausts or recirculates fumes, gases or air at temperatures up to C. Two types are available for up to 2 C and up to C. The fans are designed for continuous running while subject to that temperature. Standard sizes are 15 mm, 25 mm and 35 mm providing volumes up to.9 m 3 /s with pressures up to 49 Pa. The fan is direct drive by motor housed within its own compartment, isolating it from the airstream. Ease of access to the motor for maintenance purposes also makes the fan eminently suitable for the conventional axial fan's normal application. Motors All motors are totally enclosed fan cooled, Class F insulation with motor protection to IP54. All motors are supplied with sealed for life bearings. They are not suitable for speed regulation by voltage. Inverter control - please enquire. Electrical Data Product Code Speed (rev/min) Motor Motor Rating (kw) V / 5 Hz / 1φ Full Load Current (at 23 V) (A) Starting Current (at 23 V) (A) Electrical Supply 22 V -24 V 5Hz 1φ 3 V - 42 V 5Hz 3φ Casings All casings are hot dipped galvanised for long life and high resistance corrosion. A seal is provided on the motor shaft. Impellers Cast in aluminium silicon alloy and has a fixed pitch aerofoil blade. This ensures strength, reliability and performance at high temperature. Temperature Range Standard 2 C, made to order C. Ancillary Equipment Silencers, Mounting Feet/Plates, Vibration Isolators, Matching Flanges, High Temperature Flexible Connectors. Motor Rating 15JM D JM D JM D JM D JM D (kw) 3-42 V / 5 Hz / 3φ Full Load Current (at 4 V) (A) Sound pressure levels quoted are average db(a) at 3 m distance over a sphere, based on form B running under free field conditions, and are presented for comparative purposes only. Cylindrical silencers are available as standard. Bifurcated fans are not suitable for speed regulation. Starting Current (at 4 V) (A) Sound Level db(a) p sf - Fan (Static) Pressure (Pa) ft 3 /min m 3 /hr JM rev/min 3JM rev/min 25JM rev/min 1 3JM rev/min 25JM rev/min mm wg in wg q v - Volume Flow (m 3 /s)

9 JM AEROFOIL - BIFURCATED Motor Frame Size Schedules: C Continuous 4 V / 5 Hz / 3 φ Code Speed rev/min Max. Angle ( ) Motor Motor Rating (kw) Full Load Current (A) Starting Current d.o.l. (A) Efficiency % Power Factor cos Ø 4JM.BIF//4/5/ DA71MAC DA71MAC JM.BIF/2/4/6/ DA71MAC DA71MAC JM.BIF/2/2/6/ F F F F F JM.BIF//4/5/ DA71MAC DA71MAC DAMAC DAMAC JM.BIF/2/4/6/ DA71MAC DA71MAC DAMAC DAMAC JM.BIF/2/2/6/ F F F F F F JM.BIF/2/6/6/ F F JM.BIF/2/4/6/ DAMAC F F F JM.BIF/2/6/6/ F F F JM.BIF/2/4/6/ F F F F JM.BIF/25/6/9/ DA132SAD DA132MAD DA132MBD JM.BIF/25/4/9/ DA132SAD DA132MAD DAMAD DALAD Standard Range products shown in italics 9

10 JM AEROFOIL - BIFURCATED Motor Frame Size Schedules: 2 C Continuous 4 V / 5 Hz / 3 φ Code Speed rev/min Max. Angle ( ) Motor Motor Rating (kw) Full Load Current (A) Starting Current d.o.l. (A) Efficiency % Power Factor cos Ø 4JM.BIF/2/4/6/ F JM.BIF/2/2/6/ F F F JM.BIF/2/4/6/ F F2245C JM.BIF/2/2/6/ F F F F JM.BIF/2/6/6/ F F JM.BIF/2/4/6/ F2245C F F F JM.BIF/2/6/6/ F F JM.BIF/2/4/6/ F F JM.BIF/25/6/9/ DA132SAD DA132MAD DA132MBD JM.BIF/25/4/9/ DA132SAD DA132MAD DAMAD DALAD Standard Range products shown in italics 1

11 JMAEROFOILÐBIFURCA TED Fan Code: 4JM.BIF//4/5/... BS575 Pt 1 4 mm 144 rev/min 5 Blades 5 Hz EN291 ISO 91 Performance Data ISO 51: Performance shown ispecifically fully ducted installations ISO 51 V Type D Sound Data BS4 Part 2 195: Single figures onperformance curves are overall inlet sound power levels, derived from measurements taken inwoods laboratory specifically under ducted conditions. For sound power levels ineight octave bands, apply the following corrections tothe overall level.use upper corrections when operating point isabove shaded area, or lower corrections when operating point isbelow shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k Ð1 1 Ð1 1 Ð29 Ð1 1 Ð29 Ð2 Ð1 1 Ð1 1 Ð2 Ð Ð2 Ð1 1 SK1751 6/12/96

12 JMAEROFOILÐBIFURCA TED Fan Code: 4JM.BIF/2/4/6/... BS575 Pt 1 4 mm 144 rev/min 6 Blades 5 Hz EN291 ISO 91 Performance Data ISO 51: Performance shown ispecifically fully ducted installations ISO 51 V Type D Sound Data BS4 Part 2 195: Single figures onperformance curves are overall inlet sound power levels, derived from measurements taken inwoods laboratory specifically under ducted conditions. For sound power levels ineight octave bands, apply the following corrections tothe overall level.use upper corrections when operating point isabove shaded area, or lower corrections when operating point isbelow shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k Ð2 1 4 Ð2 Ð2 Ð Ð1 1 Ð1 1 SK1752 6/12/96

13 JM AEROFOILÐBIFURCATED Fan Code: 4JM.BIF//2/5/... 4 mm 291 rev/min 5 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO 51 6 V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k 24 Ð 4 24 Ð 4 SK1753 6/12/96

14 JM AEROFOILÐBIFURCATED Fan Code: 4JM.BIF/2/2/6/... 4 mm 295 rev/min 6 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO 51 7 V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k Ð2 Ð2 24 Ð 4 Ð2 24 Ð 4 SK1754 6/12/96

15 JM AEROFOILÐBIFURCATED Fan Code: 5JM.BIF//4/5/... 5 mm 144 rev/min 5 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO 51 V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k Ð29 Ð29 Ð2 Ð2 24 Ð 4 Ð2 24 Ð 4 SK1755 6/12/96

16 JM AEROFOILÐBIFURCATED Fan Code: 5JM.BIF/2/4/6/... 5 mm 144 rev/min 6 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO 51 3 V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k Ð2 1 4 Ð2 Ð2 24 Ð Ð 32 SK1756 6/12/96

17 JM AEROFOILÐBIFURCATED Fan Code: 5JM.BIF//2/5/... 5 mm 295 rev/min 5 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO 51 V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k 24 Ð 4 24 Ð 4 SK1757 6/12/96

18 JM AEROFOILÐBIFURCATED Fan Code: 5JM.BIF/2/2/6/... 5 mm 295 rev/min 6 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k Ð2 Ð2 24 Ð 32 Ð2 24 Ð 32 SK175 6/12/96

19 JM AEROFOILÐBIFURCATED Fan Code: 63JM.BIF/2/6/6/ mm 935 rev/min 6 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO 51 V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k Ð2 5 Ð29 Ð2 4 Ð2 Ð2 Ð Ð 32 Ð2 24 Ð 32 Ð2 SK1759 6/12/96

20 JM AEROFOILÐBIFURCATED Fan Code: 63JM.BIF/2/4/6/ mm 144 rev/min 6 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO 51 V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k 1 Ð29 24 Ð Ð 32 SK176 6/12/96

21 JM AEROFOILÐBIFURCATED Fan Code: JM.BIF/2/6/6/... mm 935 rev/min 6 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO 51 V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k Ð2 3 Ð29 1 Ð2 24 Ð Ð 24 Ð2 SK1761 6/12/96

22 JM AEROFOILÐBIFURCATED Fan Code: JM.BIF/2/4/6/... mm 144 rev/min 6 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO 51 V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k Ð2 Ð29 Ð2 Ð2 24 Ð 24 Ð2 24 Ð 24 SK1762 6/12/96

23 JM AEROFOILÐBIFURCATED Fan Code: 1JM.BIF/25/6/9/... 1 mm 96 rev/min 9 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO 51 3 V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k Ð2 Ð2 Ð1 Ð2 Ð29 Ð2 Ð2 Ð2 24 Ð 3 Ð2 24 Ð 3 Ð2 SK /3/9

24 JM AEROFOILÐBIFURCATED Fan Code: 1JM.BIF/25/4/9/... 1 mm 147 rev/min 9 Blades 5 Hz BS 575 Pt 1 EN 291 ISO 91 Performance Data ISO 51: Performance shown is specifically for fully ducted installations ISO 51 7 V Type D Sound Data BS4 Part 2 195: Single figures on performance curves are overall inlet sound power levels, derived from measurements taken in Woods laboratory specifically under ducted conditions. For sound power levels in eight octave bands, apply the following corrections to the overall level.use upper corrections when operating point is above shaded area, or lower corrections when operating point is below shaded area. Inlet Levels Angle k 2k 4k k Outlet Levels Angle k 2k 4k k Ð2 Ð2 Ð2 Ð2 Ð2 Ð2 24 Ð 3 24 Ð 3 Ð2 SK /3/9

25 JM AEROFOIL - BIFURCATED DIMENSIONS AND WEIGHTS 15JM.33-3JM.33 S No. of holes T on H P.C.D. 3 C AIRFLOW A B D FORM B ONLY L crs. M Attachable feet, thickness 3 mm Entry For J Conduit K C Code Motor A B C D E H J K L M P S T Weight (kg) 15JM.33 D CM JM.33 D CM D CM JM.33 D CM D CM

26 JM AEROFOIL - BIFURCATED DIMENSIONS AND WEIGHTS 4JM.Bif - 5JM.Bif 235 F Hole J S No. of holes T on H P.C.D. E P G D AIRFLOW FORM B ONLY B A L crs. M Slots in feet N Attachable feet, thickness 3 mm K C D71 & D motors have no external terminal box. Code Motor A B C D E F G H J K L M N P Q S T Weight (kg) 4JM.Bif D F D JM.Bif F F JM.Bif - 1JM.Bif S No. of holes T on H P.C.D. E F Hole J P G D A B AIRFLOW FORM B ONLY Attachable feet thickness Q (optional extra) L crs. M Slots in feet N K crs. C Code Motor A B C D E F G H J K L M N P Q S T U Weight (kg) 63JM.Bif F JM.Bif F D JM.Bif D D All dimensions shown in mm 12

27 JM AEROFOIL - BIFURCATED ANCILLARIES GUARDS TYPE I Impeller Side C TYPE IV Bellmouth & Motor Side C Suitable for fan Type C Weight ØA (kg) 4 I IV I IV I IV I IV I IV 5 2. BELLMOUTH C Suitable for fan C D Weight ØA Max. (kg) D A Holes to match fan flange Suitable for fan D E F G Weight (kg) Matching Flexible Damper ØA Flange Connection MATCHING FLANGE D FLEXIBLE CONNECTION E DAMPER G F

28 JM AEROFOIL - BIFURCATED ANCILLARIES SILENCER - B (& C) TYPE C Suitable for fan ØA ØB C Length 1Ø 2Ø PCD Thread M6 Weight (kg) B Type C Type 1Ø 2Ø 1Ø 2Ø M PCD B A POD - TYPE C ONLY M M M Tapped Holes to match fan M M The above silencers give the approximate db(a) reductions:- B Type 1 diameter length - 7 to 1 db(a) C Type 1 diameter length - 12 to 15 db(a) For full acoustic details contact our Woods Acoustic Divsion Telephone: +44() VIBRATION ISOLATORS 2 holes ØG RUBBER IN SHEAR B Load Type range per mounting A B C D E F G H (kg) M27 Green M6 M7 Black M6 M25 Green M M25 Black M M2 Green M1 F A ØD Mounting screw H supplied M2 Black M1 C E OPEN SPRING Type Rated Load (kg) Deflection at rated load (mm) Free Height (mm) Base fixing centres (mm) Base fixing hole ø Mounting Screw 3 Yellow M M1 6 Green M M1 14

29 Precise Air Management Fläkt Woods is a global leader in air management. We specialise in the design and manufacture of a wide range of air climate and air movement solutions. And our collective experience is unrivalled. Our constant aim is to provide systems that precisely deliver required function and performance, as well as maximise energy efficiency. Solutions for all your air climate and air movement needs Fläkt Woods is the only company in the UK capable of providing total system solutions from the following portfolio: Fans Advanced axial, centrifugal and boxed fans for general and specialist applications. Comprehensive range including high temperature and ATEX compliant options. Engineered for energy efficiency and minimised life cycle cost. Air Handling Units (AHUs) Modular, compact and small AHU units. Designed to ensure optimisation of indoor air quality, operational performance and service life. Chillers Air-cooled and water-cooled chillers with cooling capacity up to 1kW. Designed to minimise annual energy consumption in all types of buildings. Chilled beams Active induction beams for ventilation, cooling and heating, and passive convection beams for cooling. For suspended or flush-mounted ceiling installation and multi-service configuration. With unique Comfort Control and Flow Pattern Control features. Smoke control and car park ventilation systems Unique approach to car park ventilation, aided and optimised by Computational Fluid Dynamics (CFD) software. Complete turnkey solutions for designing, installing and commissioning mechanical and natural smoke ventilation. Controls and drives Variable speed drives and control systems, all tested to ensure total compatibility with our products. Specialist team can advise on energy saving and overall system integration. Technical Site Services Our dedicated team providing comprehensive post-installation services. Including condition-based contract monitoring, preventative and routine maintenance, refurbishment and system upgrades. Fläkt Woods operates a policy of continuous development and improvement. Accordingly, the Company reserves the right to supply products that may differ from those illustrated and described in this publication. Certified dimensions will be supplied on request on receipt of order. FWGJRG/JFB-3/1 Actom Mechanical Equipment Corner of Branch & Alpha Roads Driehoek, Germiston Tel (11) 779 Fax(11)7677 nuno.pereira@actom.co.za