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IM-995

Installation, Operation & Maintenance Manual

Centrifugal Fan Arrangements - Single Width, Single Inlet (SWSI)

Arrangement 4S

Direct Drive

(Swingout Door)

Arrangement 8

Direct Drive

Arrangement 7SI

Direct Drive

Arrangement 4VI

Direct Drive

(Vertical Inlet)

Arrangement 7

Direct Drive

Arrangement 4HI

Direct Drive

(Horizontal Inlet)

Arrangement 10

Belt Driven

Arrangement 9

Belt Driven

Arrangement 9F

Belt Driven

Arrangement 9SS

Belt Driven

(Swingout Door)

Arrangement 1

Belt Driven or Direct Drive

Arrangement 3

Belt Driven

Arrangement 3F

Belt Driven

Arrangement 3SI

Belt Driven or Direct Drive

Arrangement 4

Direct Drive

Arrangement 9H

Belt Driven

Arrangement 9ST

Belt Driven

(Swingout Door)

Centrifugal Fan Arrangements - Double Width, Double Inlet (DWDI)

Arrangement 3

Belt Driven or Direct Drive

Arrangement 3F

Belt Driven

Arrangement 3DI

Belt Driven or Direct Drive

Arrangement 7

Direct Drive

Arrangement 7DI

Direct Drive

Содержание IM-995

Страница 1: ...f Contents Overview of Centrifugal Fan Arrangements 2 Exploded Views 3 Impeller Nomenclature 3 Impeller Types Impeller Rotation 4 Safety Hazard Warnings 5 Shipping Receiving 5 Handling 6 Unit Storage...

Страница 2: ...angement 9 Belt Driven Arrangement 9F Belt Driven Arrangement 9SS Belt Driven Swingout Door Arrangement 1 Belt Driven or Direct Drive Arrangement 3 Belt Driven Arrangement 3F Belt Driven Arrangement 3...

Страница 3: ...r Sheave Pulley Shaft Bearings Motor Slide Base Motor Belt Outlet Flange Access Hole For Mounting Bolts Exploded View Centrifugal Fans Flanged Inlet Impeller Front Plate End Ring Shroud Back Plate Bla...

Страница 4: ...own Rotation View From Drive Side DWDI Centrifugal Fans Airfoil BAE SW BAF SW BAFF BAV HAF BAIFE Airfoil BAE DW BAF DW BC DW Radial Tip RTF HRT FC DW NFC DW Radial Bladed RBOF RBA RBO RBP RBR RBW JRW...

Страница 5: ...e clothing eye protection ear protection respiratory equipment hand and foot protection when installing or servicing the fan Always use caution when entering a fan s air path High velocity airflow can...

Страница 6: ...should be lifted using suitably rated spreader bars and padded chains or straps Do not distort housing or side plates when lifting The shaft and impeller assembly may be lifted using a hoist and a sp...

Страница 7: ...e stored for a prolonged period The drives should be labeled for service and stored in a dry place Belts should be removed coiled without kinks placed in a heavy carton and stored in a dry well ventil...

Страница 8: ...ers nuts etc The above represents industry best practice Actual foundation design should be entrusted to a qualified engineer Anchor bolts should be accurately placed to coincide with the predetermine...

Страница 9: ...riven fans 7 Check tension of belts to see if it is sufficient Sheaves on belt driven fans are often provided with taper lock bushings When tightening bushing bolts proceed in a progressive manner to...

Страница 10: ...lation is to be used place the vibration isolation base on mounting bolts Line up holes in fan base with bolts See Item 10 in the Optional Accessories section for preparing inertia bases for use 4 Pla...

Страница 11: ...double width and single width fans The shaft should be cleaned and oiled where it will contact the bearings Carefully lower the shaft assembly into the bearings Use care when lowering the shaft onto...

Страница 12: ...gs should next be positioned over the housings and carefully placed into the lower housings 4 The stabilizing ring sometimes referred to as the C ring is installed in the bearing closest to the drive...

Страница 13: ...eral assembly drawing supersede requirements found here Fans with Ball Bearings Relubrication Schedule Weeks Ball Bearing Pillow Blocks Shaft DIA Speed RPM 500 1000 1500 2000 2500 3000 3500 4000 4500...

Страница 14: ...volution during this check to look for excessive runout or a bent shaft Unless there is a bent shaft runout can be corrected by adjustments to the bolt torque of the taper bushing 3 Install and tighte...

Страница 15: ...with feeler gauges between the hub faces When angular alignment has been adjusted to manufacturer s specification parallel alignment can be checked with a dial indicator on the hub or a straightedge a...

Страница 16: ...s as it may cause belt wear Motor Maintenance The three basic rules of motor maintenance are 1 Keep the motor clean 2 Keep the motor dry 3 Keep the motor properly lubricated Blow dust off periodically...

Страница 17: ...icants All bearings are filled with a lithium complex grease before leaving the factory When the fans are started the bearings may discharge excess grease through the labrinth seals for a short period...

Страница 18: ...ial must not be compressed too tight by the gland or overheating will occur Monitor temperature for a period of time Connect a purge if specified Carbon ring seals have pins that prevent ring rotation...

Страница 19: ...hat which is acceptable for grease Consult with the factory before changing lubrication from oil to grease a Use non detergent turbine oil specified on the fan s general assembly drawing b Oil level s...

Страница 20: ...fill concrete at or near the base s final resting area to reduce injury while transferring to the permanent location The surface of the concrete must be to the height of the top of the isolation base...

Страница 21: ...te by others for additional stiffness and rigidity refer to the fan s drawing for requirements Fans must utilize rebar in the pedestals so the concrete will have good adhesion points throughout To fil...

Страница 22: ...grade nonshrinking grout and be especially sure when pouring grout that the anchor bolt sleeves are filled Prior to grouting set a section of pipe conduit steel pipe or plastic through the grout as a...

Страница 23: ...rlap Size 907 909 911 913 915 917 919 921 923 926 929 933 937 941 945 949 954 960 B 0 25 0 38 0 47 0 53 0 59 0 69 0 69 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Note On Sizes 905 911 RBO and RBR imp...

Страница 24: ...245 0 75 270 0 88 300 0 97 330 1 06 365 1 31 BC SW BC DW BAF SWSI DWDI BCS BCV Class I II DCV Impeller Overlap Size 105 122 135 150 165 182 200 222 245 270 300 330 365 402 445 490 542 600 660 730 807...

Страница 25: ...00 18 0 50 2 25 39 1 06 6 38 21 0 69 2 88 42 1 69 7 50 24 0 81 3 00 48 1 50 7 13 27 0 69 3 13 54 1 00 10 50 Models FC DW NFC DW HRS Impeller Overlap Fan Size Impeller Size B 125 25 0 31 225 0 28 325 0...

Страница 26: ...ation Maintenance Manual 26 TBNA TBNS Impeller Gap 0 13 gap on all sizes Model TBNS Model TBNA N Series Impeller Model TBNA W Series Impeller Impeller Placement Model TBA Model TBR TBA TBR Impeller Ga...

Страница 27: ...3 R13 x 3 25 0 55 R14 x 3 25 0 61 BC11 x 3 1 01 BC13 x 3 25 0 57 BC14 x 3 25 0 57 14 Housing Width R12 25 x 2 88 1 59 4 60 R13 x 3 25 1 21 R14 x 3 25 1 27 R14 75 x 4 0 48 BC13 x 3 25 1 23 BC14 x 3 25...

Страница 28: ...BO 0 50 0 44 0 38 0 25 0 38 0 44 0 56 0 63 0 75 0 75 0 88 MBR 0 25 0 25 0 25 0 25 0 25 0 38 0 50 see note below Note On Sizes 421 589 impeller is to be centered in housing Impeller Placement BCN Impel...

Страница 29: ...urement procedure incorrect Vibration Problems 1 Misalignment of drive components Check belt or coupling 2 Poor foundation or mounting structure resonances 3 Foreign material attached to rotating comp...

Страница 30: ...rted by the foundation and or ductwork Note Applies to direct or isolation mount Check fan interior for debris and standing water Fan Impeller Impeller clearance checked Impeller overlap checked Faste...

Страница 31: ...nstallation Operation Maintenance Manual IM 995 31 Date Completed Maintenance Performed By Comments Model Number __________________________ Serial Number __________________________ Fan Maintenance Log...

Страница 32: ...TWIN CITY FAN BLOWER WWW TCF COM 5959 Trenton Lane N Minneapolis MN 55442 Phone 763 551 7600 Fax 763 551 7601 2017 2023 Twin City Fan Companies Ltd Twin City Fan...

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