CENTRAL STATION AIR HANDLERS - Dunham-Bush · PDF fileCENTRAL STATION AIR HANDLERS ... AHS =...

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Form No: USS0108A

CENTRAL STATION AIR HANDLERSDOUBLE WALL & SINGLE WALL

FEATURES

- Nominal CFM:995 Through 62,000

- ARI 430 Certified andUL 1995 Approved

- Modular Design For Custom Heating, Air Conditioning and/or Ventilation Solutions

- Components Matched For Each Application

- Rugged Construction

TABLE OF CONTENTS

Page No.

NOMENCLATURE......................................................................................................................................................................... 2SECTION DESCRIPTIONS .......................................................................................................................................................... 3STANDARD FEATURES .............................................................................................................................................................. 4UNIT CONSTRUCTION................................................................................................................................................................. 5

Unit Casing.............................................................................................................................................................................. 5Heavy Duty Casing ................................................................................................................................................................ 5Fan Section ............................................................................................................................................................................. 5Typical Access Sections ........................................................................................................................................................ 6Heating & Cooling Coils ........................................................................................................................................................ 7Top View of Side Wall, Double Wall Construction............................................................................................................ 8

QUICK SELECTION TABLES: .................................................................................................................................................... 9Air Conditioning Coil Data ..................................................................................................................................................... 9Heating Coil Data ................................................................................................................................................................. 10

AIR PRESSURE DROP............................................................................................................................................................... 10FAN PERFORMANCE TABLES................................................................................................................................................ 11

Forward Curved Fans .......................................................................................................................................................... 11Alternate Forward Curved Fans ......................................................................................................................................... 13Airfoil Fans............................................................................................................................................................................. 15

DIMENSIONAL DATA................................................................................................................................................................. 18Accessory Sections.............................................................................................................................................................. 19Discharge Arrangements .................................................................................................................................................... 20Inside Cabinet....................................................................................................................................................................... 21

PHYSICAL DATA......................................................................................................................................................................... 21Coils ........................................................................................................................................................................................ 21Filters...................................................................................................................................................................................... 22Cabinet Materials .................................................................................................................................................................. 22

NET WEIGHTS.............................................................................................................................................................................. 23ODP”T” Frame Motor & Adjustable Drive Weights ......................................................................................................... 23Water Coil Operating Weights (IBS).................................................................................................................................. 24

FEATURES & OPTIONS............................................................................................................................................................. 24Accessories ........................................................................................................................................................................... 24Section Assembly................................................................................................................................................................. 24

APPLICATION RECOMMENDATIONS ................................................................................................................................... 25FILTER ARRANGEMENTS........................................................................................................................................................ 30

NOMENCLATURE

AHD1 FS 100 H M

AHS = AIR HANDLER - SINGLE WALL 1” ONLY.AHS = AIR HANDLER - DOUBLE WALL 1” AND 2” ONLY.

AHS = Air HandlerAHD = Air Handler

Double WallAHD1 = 1"AHD2 = 2"

FS = Forward CurvedWheel

AF = Airfoil Wheel

Medium Pressure

H = HorizontalV = VerticalM = Multi-Zone

Size = Nominal CFM100

SECTION DESCRIPTIONS

Section No. 1Horizontal draw thru fan. Available with or withoutinsulation. Includes adjustable motor base, andaccess to fan and motor and fiberglass insulation.

Section No. 2Horizontal blow thru fan. Available with or withoutinsulation. Includes adjustable motor base, andaccess to fan and motor and fiberglass insulation.This section can be used as a return fan with theSection no. 31 economizer.

Section No. 3Vertical fan and coil section less coils. Includesdouble drain pan, adjustable motor base,fiberglass insulation in fan and coil section withaccess to fan and motor.

Section No. 6Heating coil module (less coils) with insulation,and for use with 1 to 6 row heating coils.

Section No. 8Standard cooling coil module (less coils).Includes double drain pan, and fiberglassinsulation.

Section No. 9A"MZ" Multizone coil section (less coils). Includesdouble drain pan, zones dampers with linkage,fiberglass insulation in diffuser, coil section hotand cold deck.

Section No. 9D"DD" Dual Duct coil section (less coils). Includesdouble drain pan, fiberglass insulation in diffuser,coil section hot and cold deck. (Same as Sectionno. 9A - without zone damper).

Section No. 10Flat filter (less filter media). Accommodates 2" or4" deep filters. Includes removable access panelsand fiberglass insulation.

Section No. 11Angle filter (less filter media). Accommodates 2"deep filters. Includes access panels andfiberglass insulation.

Section No. 13Bag/Cartridge and Prefilter (less filter media).Housing accommodates up to 21" final filters and

2" prefilters. Includes access panels andfiberglass insulation.

Section No. 16Mixing Box. Furnished with R.A. and O.A.openings suitable for 100% CFM in either airstream. Dampers are optional. Includes fiberglassinsulation.

Section No. 16CCombination filter mixing box (less filter media).Accommodates 2" deep filters. Includes accesspanels. Furnished with R.A. and O.A. openingssuitable for 100% CFM in either air stream.Dampers are optional. Includes fiberglassinsulation.

Section No. 17 & 19Internal Face and Bypass damper. Must be usedwith small face area coils. Intended fortemperature control, not designed for 100%bypass application. Includes fiberglass insulation.

Section No. 20External Face and Bypass damper. This sectioncan be used with sect. 6 or 8 coil sections.Includes fiberglass insulation. Bypass duct "byothers".

Section No. 23Access section. Includes access panels andfiberglass insulation.

Section No. 24Air Blender. This is a static mixing device tothoroughly and accurately mix O.A. and R.A. andavoid stratification. Includes fiberglass insulation.

Section No. 26Discharge Plenum. This can be used with Section2 and Section 27 on blow-thru applications. Top,front or top and front openings available.

Section No. 27Diffuser. This section is used on blow thruapplications after the fan to distribute thedischarge air prior to coil or filter sections.Includes fiberglass insulation.

Section No. 31Economizer. Furnished with Exhaust, R.A. andO.A. openings suitable for 100% CFM in either airstream. Dampers are optional. Includes fiberglassinsulation.

STANDARD FEATURES

Ø Modular design sections with rigid steelframework and heavy gauge steel panelconstruction for rugged handling andoperation.

Ø A wide range of model sizes enables optimumselection of the unit to meet required systemperformance and application.

Ø A choice of either single-zone horizontal typeor single-zone vertical type provides flexibilityin selecting a unit to suit any installation orapplication requirement.

Ø A choice of either double wall insulated casingor single wall insulated casing constructed tosuit any application requirements. Available in1" or 2" design.

Ø Access panels with quick latches to facilitateaccessibility to internal parts for ease ofservicing.

Ø Two types of fan wheels-forward curved orairfoil wheels-provide flexibility in selecting afan to meet a particular CFM, static pressureand HP requirement. All blower assembliesare Class II design.

Ø Complete assembly of fan, motor and drivepackage is internally mounted and resilientlyisolated from unit casing, statically anddynamically balanced, to reduce vibration,noise breakout and prolong motor life.

Ø Computer selection of coils to meet anyheating or cooling requirements, reducesoperating cost and provides low first cost.

Ø A wide choice of accessory sections-filtersections, diffuser sections, mixing boxsections, face and bypass damper sections,hot water heating sections, return fan,economizer, etc.-to meet any air conditioning,air handling or filtration requirements.

Ø A wide choice of insulation materials (1" or 2")to meet any fire protection, thermal insulation,acoustic attenuation and atmosphererequirements.

Ø Optional variable air volume control usingvariable inlet guide vanes fitted to fan suctioninlets for variable air volume system. For moreefficient air volume control, frequency invertercan be installed to control the fan speed andreduce the operating cost. Contact the factory.

UNIT CONSTRUCTION

UNIT CASING

Rigid ConstructionFrames and supports are of heavy gauge steel fastenedto form a rigid structure. They can be disassembled forshipment and quick reassembly at the job site. All jointsand mating surfaces are heavily gasketed and sealed.

HEAVY DUTY CASING

Double Wall Construction (Optional)Dunham-Bush Double Wall Air Handling Unit has smoothinner surfaces for easy and effective cleaning to reducerisk of dirt and bacterial accumulation. There is no erosionof internal insulation material to contaminate the airstream. The unit is ideal for clean room applications suchas hospital operating theater, electronics factory, foodprocessing and pharmaceutical industries.Fiberglass insulation is sandwiched between heavygauge steel sheets to form a durable, rigid casing towithstand higher working pressures and impact forces.The heavy-duty construction provides excellent acousticand thermal insulation and eliminates erosion ofinsulation material. Standard double wall panels are 1"-11/2 lbs. insulation. Available option is 40% open areaperforated internal liner for low noise requirement.Optional 2"-2 lb. insulation panel construction provided with the same features.

Single Wall Construction (Optional)Single wall steel panels are internally lined with 1"-1 1/2 lb. density mat-faced fiberglass meeting NFPA-90A requirements and securely held on to casing by waterproof adhesive and insulation pins.

Quick Service AccessAccess panels are easily removable by turning the door latch a quarter-turn and lifting off the panel. Allaccess openings are lined with 1/8" closed-cell gasket for tight seal. Removable pin hinge is an option.

FAN SECTION

Fan TypesForward curved or airfoil fans can be providedto suit the required applications. Forwardcurved wheels are constructed of galvanizedsteel and are tested in accordance with ARIStandard 430, suitable for external staticpressure up to 3.5" w.g. and total staticpressure up to 6" w.g. Airfoil wheels are ofnon-overloading characteristics. All fans arestatically and dynamically balanced.

Variable Air Volume (VAV)For variable air volume system, variable inlet vanes can be provided as option for forward curved orairfoil fans. The VAV will continuously vary airflow to meet load requirements and reduce energyconsumption. For better efficiency, frequency inverter can be fitted in recess compartment at fan sectionand supplied together with relevant control and manual bypass option. Contact the factory.

Internal Liner

External Casing

FrameWork

Forward CurvedFans

AirfoilFans

UNIT CONSTRUCTION

Fan BearingsFan bearings are of the self-aligning type with regreaseable heavy-duty type andselected for minimum 200,000 hour average life operating hours. Bearings areprovided with lubrication lines which terminate on outside of unit casing for easeof periodic greasing.

Vibration Isolation1" deflection spring isolators are standard to provide excellentvibration isolation. Except for model AH12, AH22, AH32, AH40and AH48, where rubber-in-shear is the standard vibrationisolator.Fan and motor of standard unit are mounted on the same rigid,rugged steel frame.Fan discharge is connected to unit discharge by internal flexibleduct connectors to further reduce vibration of unit.

TYPICAL ACCESS SECTIONS

Mixing BoxThe mixing box is designed for efficient mixing ofoutside and return air by means of inter-connecteddampers. Nylon bearings eliminate the need forlubrication. Boxes can be supplied with manual ormotorized, parallel, or opposed blade dampers.

Face & BypassTwo types of damper sections are available foreither internal or external bypass. Both types havebalanced opposed blades with interconnectinglinkage. The blades are positively locked to thedamper rods which rotate in frictionless sleevebearings. The external face and bypass damper isused when a large face area coil is required. Theinternal face and bypass damper requires that asmall face area coil be used.

Filter SectionFilter sections can be supplied to suit the following applications:1. Flat filters2. Angle filters3. Bag filters4. Rigid box filters

2" flat filter section is standard. 4" flat filter, angle filter andbag filter sections are optional. The standard angle filtersection is designed for 2" pleated filters.Contact the factory for special filter applications.

Combination Filter Mixing BoxCombination filter mixing box in lieu of an angle filtersection and a mixing box section can be provided to savespace. Filters are easily withdrawn through an access doorfor quick maintenance or replacement.

UNIT CONSTRUCTION

HEATING & COOLING COILS

Note: Coil connection hand is determinedby air in face method.

Water CoilsWater cooling and heating coils are furnishedwith 5/8” O.D. (Type 5) copper tubes;aluminum or copper fins, and four finspacings.

Available:Rows Cooling - 4, 5, 6, 8, or 10Rows Heating - 1, 2, 3, or 4

Various coil circuits are available to obtain highinternal heat transfer coefficients without resortingto restrictive internal devices which increasepressure drop and restrict draining. All of thesecircuitings are made without trapped circuits sothat the coil is drainable. Extended vent and drainconnections are provided on both supply andreturn headers on coils with 3 through 10 rows. Allconnections terminate outside of the cabinet sidepanel.All water coils are circuited and installed forcounter-flow operation. Coils are certified for 200PSIG water working pressure and 200øFtemperature.For water coil ratings, see computer selectionprogram.

Steam CoilsSteam coils are furnished with 5/8" (Type 5)copper or 90/10 cupro-nickel tubes, aluminum orcopper fins with various fin spacings. Type 5 coils

are either one or two rows deep. Various stylesare also available.Style "NFS" - with steam distributing tube, supplyand return connection on same end.Style "NFO" - with steam distributing tube, supplyand return connection on opposite end.Style "NFD" - with (2) steam connections(opposite ends) and (1) return connection.Standard copper tube coils are guaranteed for150 psig pressure and 366øF temperature.Cupro-nickel tube coils are guaranteed for 250psig pressure and 475øF temperature.For steam coil ratings, see Bulletin 6001-13.

Direct Expansion CoilsRefrigerant coils are furnished with 5/8" O.D.(Type 5) copper tubes; aluminum or optionalcopper fins, four fin spacings and up to 10 rowsdeep in the direction of air flow. They arefurnished with brass, sweat type distributors andcopper suction connections. Distributor leads areall the same length to insure equal refrigerantpressure drop through all circuits. Variouscircuiting arrangements are available to provideproper refrigerant pressure drop. Coils can befurnished with multiple distributors for either faceor row control. After fabrication and testing, coilsare dehydrated under a vacuum and sealed.

For DX coil ratings, see Bulletin 6001-14 orapproved computer selection program.

Plate FinsPlate type, die formed,double corrugated fin designprovides optimum strengthand turbulence to give peakperformance withoutobjectionable high airpressure drop. The combination of the staggeredtube configuration and the corrugation symmetryof the fin permits air flow in either direction withthe same high heat transfer performance. Eachfin has die formed self-spacing fin collarscompletely covering the tubes. The collarsautomatically and accurately space the fins.

UNIT CONSTRUCTION

TOP VIEW OF SIDE WALL, DOUBLE WALL CONSTRUCTION

QUICK SELECTION TABLES

AIR CONDITIONING COIL DATA (TYPE 5 COIL)Chilled water Direct Expansion

EAT 80/67 EAT 90/72 EAT 80/67 EAT 90/72Unit Size RowsCirc.

GPM WPD TMBH SMBH GPM WPD TMBH SMBHCirc.

TMBH SMBH TMBH SMBH

4 half 5.1 1.1 25.3 22.8 7.5 2.1 37.5 31.1 half 17.9 17.8 26.3 26.2

12 6 half 7.6 3.1 37.8 28.9 10.8 5.9 54.1 39.0 half 30.7 26 44.8 35.2

8 half 9.5 6.1 47.2 33.0 13.2 11.0 65.9 44.0 half 41.9 30.8 58.6 41.3

4 half 11.3 3.9 56.2 45.6 16.2 7.5 80.9 61.1 half 46.4 41.9 67.4 56.6

22 6 half 15.9 10.5 79.2 57.1 22.2 19.0 110.7 75.9 half 72.8 54.4 100.5 71.7

8 full 17.1 2.1 85.4 59.9 24.1 3.8 120.3 80.1 half 90.5 62 120.6 80.1

4 half 15.0 5.1 74.8 60.4 21.5 9.7 107.4 82.1 half 62.7 56.3 90.6 76.1

30 6 full 18.1 1.4 90.5 70.0 26.2 2.7 130.9 95.1 half 97.5 72.7 133.8 72.7

8 full 22.9 2.8 114.5 80.4 32.2 5.2 160.9 108.8 half 121 83.3 159.8 83.3

4 half 22.4 9.6 111.9 86.0 31.7 17.6 158.2 115.5 half 101 81.6 141.6 108.6

40 6 full 27.1 2.7 135.3 98.9 38.5 5.0 192.3 134.1 half 145 103.8 193.5 134.1

8 full 33.3 5.1 166.3 112.7 46.2 9.0 230.6 150.9 3/4 169 115.2 224.1 148.2

4 full 24.2 1.7 121.0 98.3 35.2 3.4 176.0 133.5 half 133 102.2 182 136.3

48 6 full 34.5 4.7 172.4 123.3 48.5 8.6 242.1 165.8 half 179 126.2 234 162.7

8 full 41.8 8.6 208.7 139.9 57.3 15.1 286.4 184.4 3/4 208 139.9 272.4 179.6

4 full 33.9 2.3 169.3 133.3 48.9 4.4 244.4 182.4 half 186 140.4 252.3 184.3

64 6 full 47.5 6.1 237.5 166.6 66.5 11.1 332.2 225.6 3/4 234 166.6 316.7 217.4

8 full 57.0 11.0 284.7 188.7 78.0 19.2 389.5 250.3 3/4 284 188.7 368.4 241.8

4 full 41.0 2.8 204.7 164.4 59.1 5.4 295.4 222.7 half 224 170.9 302 225

80 6 full 57.8 7.5 288.8 206.8 80.9 13.6 404.2 274.9 3/4 288 206.8 387.8 269.8

8 full 69.7 13.7 347.9 235.1 95.4 23.9 476.5 306.5 full 333 225 445.6 296

4 full 50.6 2.9 252.7 204.7 73.1 5.5 365.1 274.4 half 283 215.6 381.9 280.1

100 6 full 71.6 7.7 357.7 255.0 100.3 14.0 500.8 343.0 3/4 359 258 482.7 336.6

8 full 86.5 14.2 432.3 290.4 118.4 24.7 591.6 382.8 full 412 280.9 552.3 369.6

4 full 64.0 3.2 319.9 251.5 91.9 6.1 459.3 339.7 half 357 268 477.4 346.6

120 6 full 89.3 8.5 446.0 311.3 124.5 15.2 622.0 421.4 3/4 446 311.3 595.5 410

8 full 107.0 15.3 534.3 353.2 145.9 26.5 728.7 468.5 full 513 345.6 683.3 452.7

4 full 79.6 3.3 397.8 313.9 114.4 6.2 571.3 423.9 half 444 330.4 593.4 432.7

150* 6 full 111.2 8.6 555.2 388.8 155.1 15.5 774.5 521.6 3/4 555 388.8 742.2 507.2

8 full 133.3 15.5 665.8 441.3 181.8 26.9 908.0 585.4 full 639 431.8 850.9 560.6

4 full 99.4 5.4 496.6 380.8 141.6 10.1 707.3 517.9 half 485 371.7 648.4 485.5

180* 6 full 136.8 13.9 683.1 477.0 189.3 24.7 945.8 630.9 3/4 618 449.2 825.4 583.3

8 double 144.8 4.7 723.4 500.9 202.5 8.4 1011.3 666.5 full 721 497.5 962 650.3

4 full 143.2 13.0 715.4 535.5 201.0 23.6 1004.1 713.1 half 727 535.5 952.8 692.4

240* 6 1 1/2 180.4 9.5 901.0 636.9 250.9 17.1 1253.3 842.4 full 919 636.9 1208 827.1

8 double 206.4 10.9 1031.2 691.0 283.8 19.1 1417.6 920.9 full 1038 691 1327 889.2

4 double 162.4 12.8 811.0 603.7 227.6 23.2 1136.8 804.0 3/4 824 603.7 1080 780

270* 6 1 1/2 204.0 9.3 1019.1 717.3 283.7 16.7 1417.1 948.7 full 1041 717.3 1367 931.5

8 double 233.0 10.7 1165.2 777.8 320.7 18.8 1602.0 1036.6 full 1174 786.4 1503 1001

4 double 167.1 3.5 834.7 661.5 240.8 6.8 1202.9 905.1 3/4 943 705.4 1273 923.5

320* 6 1 1/2 247.0 14.8 1233.7 849.3 341.5 26.2 1705.9 1143.8 3/4 1226 849.3 1584 1083

8 double 282.0 16.9 1408.5 941.7 385.5 29.3 1925.5 1249.2 full 1407 941.7 1823 1207

4 double 220.5 5.5 1101.6 871.1 316.1 10.4 1578.9 1176.4 full 1223 916.8 1630 1200

420* 6 1 1/2 322.5 22.7 1610.6 1108.9 444.6 40.0 2221.0 1480.2 1 1/2 1549 1084 2066 1414

8 double 369.5 26.0 1845.8 1232.7 503.7 45.0 2516.0 1621.5 1 1/2 1776 1206 2271 1525

4 double 253.2 5.5 1264.8 996.8 362.7 10.4 1811.7 1346.2 FULL 1404 1049 1873 1374

480* 6 1 1/2 369.7 22.4 1846.7 1268.2 509.7 39.5 2546.1 1708.1 1 1/2 1777 1239 2370 1617

8 double 423.5 25.7 2115.2 1409.3 576.9 44.4 2881.6 1869.6 1 1/2 2042 1379 2612 1743

4 double 325.6 9.9 1626.6 1239.2 462.4 18.4 2309.7 1685.6 FULL 1730 1287 2251 1652

590* 6 1 1/2 464.5 39.4 2320.2 1593.2 637.3 68.8 3183.3 2097.6 1 1/2 2209 1557 2881 1985

8 double 530.9 45.0 2652.0 1768.6 719.9 77.0 3595.9 2297.0 double 2541 1694 3318 2180

Notes: 1. All coils 8 FPI2. All water coils are 45 EWT/ 55 LWT3. ALL DX coils are 45 SST, R-22

* Stacked coils

QUICK SELECTION TABLES

HEATING COIL DATA (TYPE 5 COIL)Hot water Steam Hot Water Steam

0 EAT 0 EAT 60 EAT 60 EATUnit Size Rows

Circ. GPM WPD TMBH TMBH GPM WPD TMBH TMBH1 half 5.3 1.4 51.5 57.7 2.9 0.5 28.2 40.3

12 2 half 10.4 4.4 101.0 102.8 5.9 1.7 58.0 70.91 half 10.7 3.8 104.5 78.4 6.1 1.4 59.4 76.0

22 2 half 20.2 11.8 196.7 142.2 11.8 4.6 114.9 133.01 half 14.0 4.7 136.7 102.5 8.0 1.8 78.0 98.0

30 2 half 26.5 14.8 258.2 186.4 15.5 5.7 151.1 172.91 half 20.3 0.5 197.8 148.3 11.7 2.9 114.2 138.8

402 half 37.5 23.5 365.8 266.5 22.1 9.2 215.4 242.81 half 25.1 11.4 244.7 183.5 14.6 4.4 142.5 168.7

482 full 44.9 4.6 438.4 328.8 26.1 1.8 254.2 294.61 half 34.4 13.8 335.4 251.5 20.1 5.4 196.1 230.3

64 2 full 61.1 5.8 596.3 447.2 35.6 2.2 346.9 400.71 half 41.1 16.1 400.8 300.6 24.1 6.3 234.7 272.5

80 2 full 73.4 6.9 716.4 537.3 42.8 2.7 417.6 478.01 half 51.6 15.8 503.7 377.7 30.2 6.1 294.8 337.0

100 2 full 90.8 7.1 885.7 664.3 52.9 2.7 516.2 592.01 half 64.6 16.9 629.9 590.5 37.8 6.6 369.1 419.6

120 2 full 112.9 7.6 1101.8 1040.7 65.9 2.9 643.0 730.41 half 80.2 17.1 782.8 725.0 47.0 6.6 458.8 506.6

150* 2 full 140.5 7.7 1370.5 1280.8 82.0 3.0 799.9 886.21 half 96.6 24.8 942.8 862.3 56.9 9.8 555.2 602.6

180* 2 full 169.3 11.6 1651.4 1525.1 99.3 4.5 968.8 1055.41 half 132.3 47.9 1290.7 968.0 78.5 19.1 765.5 834.6

240*2 full 231.1 23.8 2255.1 1691.3 136.5 9.4 1331.7 1459.51 half 150.0 47.3 1463.2 1097.4 88.9 18.8 867.7 950.8

270* 2 full 261.7 23.4 2553.6 1915.2 154.5 9.2 1507.7 41659.81 half 177.9 67.9 1735.4 1301.5 105.8 27.1 1032.3 1114.1

320* 2 full 310.6 34.9 3030.4 2272.8 183.9 13.8 1794.5 1954.61 half 226.7 95.2 2211.6 1658.7 135.2 38.2 1318.9 1375.0

420* 2 full 397.7 50.6 3879.8 2909.8 236.1 20.2 2303.2 2465.11 half 260.3 94.4 2539.4 1983.5 155.2 37.9 1514.3 1030.8

480* 2 full 456.3 50.1 4452.0 3496.2 270.9 20.0 2642.7 2940.51 half 203.4 67.5 2979.7 2328.0 118.5 26.0 1735.9 1896.4

590*2 full 358.2 37.6 5248.4 4214.8 208.1 14.4 3048.7 3464.8

Notes: 1. All coils 8 FPI2. Hot water coils: 180 EWT3. Steam Coils: 5 psig

4. All coils Type 5, LFA5. All coils rated @ nominal unit CFM

* Stacked coils

AIR PRESSURE DROP

COMPONENT AIR PRESSURE DROP - Inches of WaterAir Velocity Ft./Min.

Description200 250 300 350 400 450 500 550 600

Damper Sections*Mix Box 0.02 0.03 0.04 0.05 0.07 0.09 0.11 0.13 0.16IF & BP 0.02 0.06 0.11 0.15 0.20 0.25 0.31 0.37 0.45

Panel Filter**2” Pleated 35% Eff. 0.135 0.173 0.210 0.250 0.285 0.322 0.360 0.450 0.5442” Perm. High Vel. 0.030 0.044 0.060 0.081 0.130 0.126 0.152 0.180 0.2124” Pleated 35% Eff. 0.102 0.145 0.18 0.217 0.255 0.292 0.33 0.390 0.45

Filters – Bag 60% - 65% Efficient**22” 0.17 0.19 0.22 0.25 0.27 0.32 0.35 0.39 0.4529” 0.12 0.14 0.17 0.20 0.22 0.27 0.30 0.34 0.40Bag Depth36” 0.11 0.13 0.16 0.19 0.21 0.26 0.29 0.35 0.39



Cartridge Type 12” Deep**55% - 65% Eff. 0.13 0.17 0.21 0.24 0.28 0.31 0.35 0.42 0.4980% - 85% Eff. 0.19 0.24 0.29 0.34 0.38 0.43 0.48 0.54 0.5790% - 95% Eff. 0.31 0.36 0.41 0.46 0.50 0.55 0.60 0.66 0.74

HEPA 0.51 0.60 0.79 0.93 1.07 1.21 1.35 -- --Diffuser 0.010 0.040 0.077 0.199 0.161 0.203 0.251 0.303 0.361

*The damper pressure drop shown is based on the air velocity thru the large cooling coil.**Filter pressure drop is based on the air velocity thru clean filters. Filter velocity = CFM ÷ Filter Face Area.

FAN DATA

FORWARD CURVED FANS - Standard Blower SizeTotal Static Pressure

0.50 0.75 1.00 1.25 1.50 1.75 2.00Model FanModel

Air Vol.(CFM)

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

1000 1056 0.24 1240 0.33 1404 0.41 1563 0.51 - - - - - -1125 1094 0.30 1269 0.40 1426 0.48 1571 0.58 1712 0.70 1848 0.81 - -1250 1134 0.37 1300 0.47 1454 0.57 1592 0.68 1723 0.78 1850 0.89 1976 1.021375 1180 0.45 1338 0.55 1483 0.67 1621 0.78 1745 0.89 1865 1.02 1979 1.12

FS 12 200

1500 1231 0.54 1379 0.65 1518 0.78 1650 0.89 1774 1.02 1888 1.15 1999 1.281575 762 0.33 918 0.44 1054 0.55 - - - - - - - -

1800 781 0.41 927 0.54 1059 0.67 1178 0.81 - - - - - -2025 809 0.53 940 0.65 1067 0.80 1185 0.95 1292 1.09 - - - -2250 839 0.65 962 0.80 1079 0.94 1193 1.09 1299 1.28 1398 1.43 1489 1.592475 874 0.81 989 0.95 1097 1.11 1204 1.28 1307 1.45 1405 1.65 1496 1.83

FS 22 250

2700 914 0.98 1020 1.14 1122 1.32 1221 1.49 1318 1.68 1413 1.86 1504 2.071920 663 0.37 793 0.50 - - - - - - - - - -2240 688 0.48 805 0.62 917 0.77 1023 0.92 - - - - - -2560 719 0.64 828 0.78 929 0.94 1026 1.11 1119 1.29 - - - -2880 752 0.81 855 0.98 950 1.15 1039 1.32 1127 1.52 1210 1.72 1290 1.903200 790 1.04 887 1.21 976 1.41 1061 1.59 1141 1.79 1221 2.00 1297 2.203520 830 1.29 921 1.49 1006 1.70 1087 1.90 1163 2.12 1237 2.33 1309 2.56

FS 32 280

3840 873 1.59 958 1.82 1038 2.03 1115 2.26 1189 2.49 1259 2.70 1328 2.952800 606 0.61 722 0.81 - - - - - - - - - -3200 628 0.80 733 0.99 832 1.22 929 1.46 - - - - - -3600 656 1.02 750 1.24 844 1.46 931 1.72 1018 1.99 - - - -4000 686 1.29 775 1.52 859 1.78 942 2.03 1022 2.32 1098 2.60 - -4400 721 1.61 802 1.86 881 2.13 957 2.40 1033 2.68 1106 3.00 1174 3.30

FS 40 315

4800 758 1.97 833 2.26 906 2.53 976 2.83 1048 3.14 1118 3.45 1185 3.763018 507 0.51 614 0.71 - - - - - - - - - -3521 522 0.68 617 0.88 709 1.09 - - - - - - - -4024 542 0.88 629 1.11 711 1.34 792 1.59 - - - - - -4527 567 1.14 647 1.36 724 1.62 795 1.87 867 2.16 - - - -5030 599 1.45 667 1.69 741 1.96 809 2.24 873 2.53 936 2.81 - -5533 639 1.85 693 2.07 760 2.36 824 2.66 886 2.97 946 3.28 1002 3.58

FS 48 355

6036 680 2.33 725 2.53 782 2.81 844 3.12 902 3.47 959 3.81 1014 4.135132 501 1.14 578 1.41 649 1.69 717 2.00 785 2.34 - - - -5773 523 1.45 596 1.76 663 2.07 726 2.39 787 2.73 846 3.10 - -6415 549 1.83 618 2.17 681 2.51 741 2.86 797 3.21 852 3.57 906 3.997056 578 2.30 641 2.66 701 3.03 758 3.39 812 3.78 863 4.18 914 4.57

FS 64 400

7698 608 2.84 665 3.21 723 3.62 778 4.03 829 4.42 879 4.86 926 5.265250 4 0.94 491 1.24 564 1.56 - - - - - - - -6000 428 1.21 500 1.52 567 1.87 630 2.23 - - - - - -6750 445 1.53 512 1.87 575 2.24 633 2.64 691 3.04 - - - -7500 465 1.92 527 2.30 586 2.70 642 3.11 695 3.54 748 4.01 797 4.478250 486 2.37 545 2.80 600 3.24 653 3.66 703 4.12 752 4.57 800 5.10

FS 80 450

9000 509 2.93 564 3.37 616 3.82 666 4.30 715 4.79 761 5.26 806 5.806180 431 1.26 501 1.59 567 1.93 630 2.33 - - - - - -7210 456 1.76 520 2.13 579 2.50 637 2.92 692 3.35 746 3.76 - -8240 485 2.37 544 2.79 598 3.21 651 3.64 701 4.08 750 4.55 799 5.099270 517 3.13 572 3.60 622 4.06 671 4.55 717 5.01 762 5.48 806 6.05

10300 551 4.06 600 4.57 649 5.09 693 5.61 737 6.14 779 6.64 821 7.22

FS100 450

11330 586 5.15 632 5.72 678 6.30 720 6.85 761 7.44 800 8.01 839 8.607140 402 1.38 471 1.78 535 2.20 594 2.66 651 3.14 - - - -

8330 422 1.88 486 2.30 545 2.77 599 3.24 652 3.77 703 4.35 752 4.899520 446 2.51 505 3.00 559 3.50 611 4.01 660 4.57 708 5.15 753 5.72

10710 474 3.30 526 3.81 578 4.38 626 4.93 673 5.54 717 6.15 759 6.7311900 503 4.25 551 4.81 599 5.42 645 6.04 689 6.66 731 7.35 771 7.9513090 535 5.40 579 6.02 623 6.68 665 6.26 708 7.99 748 8.70 786 9.41

FS120 500

14280 568 6.76 609 7.42 649 8.11 689 8.82 728 9.56 766 10.25 803 11.088580 348 1.51 410 1.97 468 2.46 522 3.02 - - - - - -

10010 364 2.04 421 2.55 474 3.10 524 3.68 573 4.29 618 4.92 - -11440 383 2.70 437 3.29 485 3.87 533 4.47 577 5.11 619 5.77 661 6.5212870 404 3.51 454 4.14 500 4.79 544 5.46 585 6.14 625 6.81 664 7.6114300 427 4.51 474 5.19 517 5.89 558 6.61 597 7.36 634 8.07 672 8.8915730 452 5.69 494 6.42 536 7.19 575 7.94 612 8.77 648 9.56 682 10.35

FS150 560

17160 478 7.09 518 7.90 556 8.73 593 9.56 619 10.36 663 11.27 696 12.1110800 374 2.40 430 2.92 480 3.48 527 4.06 574 4.72 618 5.40 661 6.0812600 401 3.35 450 3.98 496 4.59 541 5.24 583 5.94 623 6.60 663 7.3914400 428 4.59 475 5.28 518 5.98 559 6.70 598 7.44 636 8.14 673 8.9916200 460 6.14 502 6.89 542 7.67 581 8.47 617 9.29 652 10.06 687 10.9418000 493 7.99 531 8.83 569 9.70 605 10.56 640 11.48 673 12.36 705 13.2519800 528 10.30 563 11.20 597 12.15 631 13.08 663 14.02 695 15.03 725 15.91

FS180 560

21600 563 12.96 595 13.95 627 14.92 659 16.01 690 17.04 720 18.06 749 19.1413950 368 3.81 469 4.92 435 4.80 473 5.48 514 6.31 555 7.26 - -16275 411 5.72 504 6.97 464 6.70 493 7.30 524 7.98 558 8.85 593 9.8518600 456 8.23 478 8.73 501 9.28 524 9.85 549 10.52 577 11.31 605 12.1120925 504 11.42 522 12.00 542 12.54 562 13.19 582 13.74 605 14.54 627 15.2523250 551 15.34 569 15.98 586 16.64 603 17.23 621 17.96 640 18.60 659 19.39

FS240 630

25575 598 20.07 615 20.85 631 21.52 647 22.27 662 22.91 679 23.68 696 24.4516260 305 3.73 338 4.30 374 5.01 414 5.89 - - - - - -18585 333 5.24 358 5.81 388 6.48 420 7.28 454 8.27 490 9.36 - -20910 363 7.19 385 7.77 409 8.43 435 9.18 462 10.03 492 11.03 524 12.2523235 393 9.57 413 10.14 434 10.83 456 11.61 479 12.41 504 13.32 530 14.4625560 424 12.46 443 13.14 461 13.80 480 14.51 501 15.40 521 16.22 544 17.30

FS270 710

27885 457 15.93 474 16.64 490 17.33 508 18.14 524 18.89 543 19.85 561 20.7518900 250 4.01 284 4.80 319 5.78 356 6.97 - - - - - -22050 274 5.84 301 6.61 329 7.55 358 8.64 390 9.93 - - - -25200 301 8.30 322 9.07 345 9.95 370 11.01 396 12.23 422 13.54 450 15.0528350 329 11.35 347 12.19 367 13.11 387 14.11 409 15.20 432 16.51 455 18.0131500 358 15.21 374 16.07 390 16.95 408 18.04 426 19.13 446 20.21 467 21.77

FS320 800

34650 388 19.84 402 20.72 417 21.77 432 22.74 448 23.95 465 25.10 482 26.40

FAN DATA

FORWARD CURVED FANS - Standard Blower SizeTotal Static Pressure

2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00Model FanModel

Air Vol.(CFM)

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

1000 - - - - - - - - - - - - - - - -1125 - - - - - - - - - - - - - - - -1250 - - - - - - - - - - - - - - - -1375 2096 1.28 2208 1.41 - - - - - - - - - - - -

FS 12 225

1500 2105 1.41 2211 1.53 2318 1.69 - - - - - - - - - -1575 - - - - - - - - - - - - - - - -1800 - - - - - - - - - - - - - - - -2025 - - - - - - - - - - - - - - - -2250 - - - - - - - - - - - - - - - -2475 1582 2.02 1668 2.20 - - - - - - - - - - - -

FS 22 250

2700 1588 2.26 1671 2.47 1748 2.67 - - - - - - - - - -1920 - - - - - - - - - - - - - - - -2240 - - - - - - - - - - - - - - - -2560 - - - - - - - - - - - - - - - -2880 - - - - - - - - - - - - - - - -3200 1371 2.44 1442 2.64 - - - - - - - - - - - -3520 1379 2.77 1448 3.03 1516 3.27 1580 3.49 - - - - - - - -

FS 32 280

3840 1394 3.17 1460 3.44 1522 3.66 1586 3.95 1648 4.22 - - - - - -2800 - - - - - - - - - - - - - - - -3200 - - - - - - - - - - - - - - - -3600 - - - - - - - - - - - - - - - -4000 - - - - - - - - - - - - - - - -4400 1246 3.65 - - - - - - - - - - - - - -

FS 40 315

4800 1249 4.12 1312 4.46 1378 4.84 - - - - - - - - - -3018 - - - - - - - - - - - - - - - -3521 - - - - - - - - - - - - - - - -4024 - - - - - - - - - - - - - - - -4527 - - - - - - - - - - - - - - - -5030 - - - - - - - - - - - - - - - -5533 1063 3.95 - - - - - - - - - - - - - -

FS 48 355

6036 1067 4.49 1120 4.83 1175 5.26 - - - - - - - - - -5132 - - - - - - - - - - - - - - - -5773 - - - - - - - - - - - - - - - -6415 959 4.37 - - - - - - - - - - - - - -7056 964 5.00 1012 9.72 1061 5.88 - - - - - - - - - -

FS 64 400

7698 973 5.72 1018 6.11 1064 6.65 1108 7.13 1153 7.58 - - - - - -5250 - - - - - - - - - - - - - - - -

6000 - - - - - - - - - - - - - - - -6750 - - - - - - - - - - - - - - - -7500 - - - - - - - - - - - - - - - -8250 846 5.57 892 6.15 - - - - - - - - - - - -

FS 80 450

9000 850 6.32 893 6.89 934 7.37 - - - - - - - - - -6180 - - - - - - - - - - - - - - - -7210 - - - - - - - - - - - - - - - -8240 846 5.57 893 6.15 - - - - - - - - - - - -9270 850 6.55 894 7.16 935 7.73 976 8.30 - - - - - - - -

10300 861 7.73 901 8.36 940 8.93 980 9.59 1018 10.24 1055 10.83 1092 11.51 - -

FS100 450

11330 878 9.19 915 9.78 952 10.37 991 11.12 1026 11.73 1061 12.41 1096 13.14 - -7140 - - - - - - - - - - - - - - - -

8330 - - - - - - - - - - - - - - - -9520 797 6.38 840 7.03 - - - - - - - - - - - -

10710 801 7.43 842 8.08 882 8.78 921 9.54 - - - - - - - -11900 811 8.69 849 9.31 887 10.10 923 10.85 958 11.52 994 12.41 1029 13.25 - -13090 824 10.12 860 10.87 896 11.65 930 12.33 964 13.19 998 14.03 1031 14.80 1063 15.59

FS120 500

14280 839 11.78 874 12.61 908 13.36 941 14.19 974 15.04 1006 15.80 1037 16.64 1069 17.628580 - - - - - - - - - - - - - - - -

10010 - - - - - - - - - - - - - - - -11440 - - - - - - - - - - - - - - - -12870 701 8.31 740 9.18 - - - - - - - - - - - -14300 707 9.65 743 10.54 776 11.32 810 12.25 843 13.23 - - - - - -15730 717 11.24 749 12.08 782 12.95 814 13.94 845 14.82 874 15.72 905 16.83 - -

FS150 560

17160 728 13.01 759 13.85 790 14.87 820 15.78 850 16.72 880 17.80 907 18.79 935 19.7110800 - - - - - - - - - - - - - - - -12600 701 8.10 740 8.97 776 9.74 - - - - - - - - - -14400 708 9.73 743 10.64 777 11.45 810 12.34 843 13.32 874 14.24 - - - -12870 720 11.73 753 12.69 784 13.50 815 14.50 846 15.49 876 16.37 905 17.35 935 18.4814300 736 14.16 766 15.12 796 15.98 826 17.06 855 18.02 883 18.93 911 20.10 938 21.1815730 756 17.00 784 17.91 813 18.97 840 20.01 867 20.90 895 22.10 922 23.24 947 24.26

FS180 560

17160 777 20.18 804 21.25 832 22.38 858 23.34 885 24.53 911 25.68 935 26.70 960 27.8313950 - - - - - - - - - - - - - - - -16275 628 10.90 - - - - - - - - - - - - - -18600 633 13.08 664 14.16 695 15.32 726 16.60 - - - - - - - -20925 652 16.22 677 17.08 703 18.22 728 19.23 757 20.63 784 21.90 812 23.34 - -23250 680 20.25 699 21.08 722 22.14 744 23.06 767 24.27 791 25.48 815 26.68 839 28.23

FS240 630

25575 832 25.89 731 26.14 750 27.04 767 27.92 788 29.12 809 30.19 - - - -16260 - - - - - - - - - - - - - - - -18585 - - - - - - - - - - - - - - - -20910 556 13.54 - - - - - - - - - - - - - -23235 557 15.61 586 16.96 615 18.39 - - - - - - - - - -25560 567 18.37 591 19.63 616 20.96 642 22.39 667 23.92 - - - - - -

FS270 710

27885 582 21.89 603 22.94 625 24.27 647 25.62 671 27.06 694 28.70 717 30.19 742 32.0918900 - - - - - - - - - - - - - - - -22050 - - - - - - - - - - - - - - - -25200 478 16.71 - - - - - - - - - - - - - -28350 479 19.54 504 21.23 528 23.06 - - - - - - - - - -31500 487 23.26 509 24.89 529 26.56 552 28.50 574 30.37 596 32.49 618 34.39 - -

FS320 800

34650 501 27.83 519 29.48 538 31.16 557 32.96 577 34.64 - - - - - -

FAN DATA

ALTERNATE FORWARD CURVED FANS - Alternate Blower SizeTotal Static Pressure

0.50 0.75 1.00 1.25 1.50 1.75 2.00Model FanModel

Air Vol.(CFM)

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

100011251250 Consult Factory for Alternate Fan Size1375

FS 12 -

15001575 981 0.43 1131 0.54 1269 0.67 1397 0.80 1518 0.91 - - - -1800 1035 0.57 1173 0.68 1303 0.82 1424 0.97 1538 1.09 1645 1.25 1757 1.412025 1097 0.72 1223 0.87 1344 1.01 1458 1.15 1568 1.32 1672 1.48 1770 1.632250 1164 0.94 1279 1.08 1392 1.24 1500 1.39 1603 1.55 1703 1.73 1798 1.922475 1233 1.18 1342 1.34 1444 1.49 1547 1.66 1645 1.83 1738 2.00 1831 2.22

FS 22 225

2700 1305 1.46 1409 1.65 1505 1.82 1599 1.99 1692 2.17 1782 2.36 1866 2.531920 795 0.47 933 0.60 1064 0.74 1181 0.88 1292 1.02 - - - -2240 837 0.64 960 0.78 1078 0.94 1193 1.09 1299 1.26 1397 1.43 1489 1.592560 890 0.87 1000 1.02 1106 1.19 1210 1.36 1311 1.55 1408 1.73 1499 1.922880 948 1.15 1048 1.32 1145 1.49 1238 1.68 1332 1.87 1422 2.07 1511 2.273200 1012 1.49 1101 1.68 1190 1.86 1277 2.07 1362 2.27 1445 2.47 1527 2.703520 1087 1.93 1159 2.10 1241 2.30 1321 2.51 1401 2.74 1478 2.97 1552 3.17

FS 32 250

3840 1167 2.46 1224 2.61 1297 2.83 1371 3.05 1445 3.27 1518 3.52 1589 3.762800 744 0.77 848 0.94 945 1.11 1036 1.28 1124 1.45 1209 1.66 - -3200 790 1.04 887 1.21 976 1.41 1061 1.59 1141 1.79 1221 2.00 1297 2.203600 842 1.36 929 1.56 1015 1.78 1093 1.99 1169 2.20 1242 2.43 1312 2.644000 896 1.76 977 1.99 1056 2.22 1131 2.46 1202 2.68 1272 2.93 1339 3.174400 956 2.26 1029 2.50 1102 2.74 1172 3.00 1241 3.25 1306 3.51 1370 3.78

FS 40 280

4800 1018 2.83 1084 3.08 1152 3.35 1217 3.62 1282 3.91 1345 4.18 1406 4.473018 617 0.71 728 0.89 830 1.12 - - - - - - - -3521 650 0.97 747 1.19 842 1.41 929 1.66 1018 1.93 - - - -4024 688 1.31 777 1.53 860 1.79 943 2.06 1023 2.33 1098 2.61 1176 2.934527 732 1.72 812 1.97 889 2.24 963 2.53 1037 2.83 1109 3.11 1177 3.455030 781 2.22 851 2.50 923 2.80 992 3.10 1058 3.41 1125 3.72 1192 4.065533 831 2.84 896 3.14 961 3.47 1026 3.78 1088 4.10 1147 4.45 1209 4.82

FS 48 315

6036 883 3.54 943 3.88 1002 4.22 1063 4.57 1122 4.93 1178 5.28 1233 5.655132 608 1.53 673 1.75 744 2.03 812 2.33 876 2.61 936 2.88 1002 3.245773 658 2.06 706 2.27 769 2.57 833 2.88 893 3.20 952 3.51 1007 3.856415 712 2.74 754 2.95 801 3.21 859 3.55 916 3.88 973 4.23 1024 4.607056 766 3.54 804 3.76 844 4.03 890 4.33 942 4.70 994 5.06 1044 5.47

FS 64 355

7698 822 4.50 858 4.76 893 5.01 929 5.28 973 5.65 1021 6.04 1069 6.455250 505 1.19 581 1.46 651 1.76 718 2.07 783 2.39 - - - -

6000 533 1.58 604 1.90 668 2.22 730 2.54 789 2.87 848 3.27 904 3.656750 563 2.07 629 2.41 691 2.78 749 3.12 803 3.48 858 3.89 909 4.287500 597 2.66 658 3.04 716 3.44 771 3.84 823 4.22 873 4.63 922 5.048250 634 3.38 689 3.78 744 4.20 796 4.64 847 5.09 893 5.47 939 5.97

FS 80 400

9000 672 4.20 724 4.66 774 5.09 822 5.55 871 6.07 917 6.53 961 6.996180 540 1.69 610 2.02 674 2.33 734 2.66 793 3.03 850 3.41 904 3.787210 584 2.43 646 2.78 707 3.17 762 3.55 816 3.93 866 4.30 917 4.748240 633 3.38 689 3.76 743 4.19 796 4.64 846 5.07 893 5.45 939 5.959270 686 4.56 736 5.00 785 5.44 833 5.94 880 6.43 926 6.92 969 7.41

10300 741 6.04 787 6.53 831 7.02 874 7.49 918 8.05 960 8.58 1002 9.16

FS100 400

11330 797 7.80 838 8.32 881 8.89 921 9.45 960 9.94 1000 10.57 1038 11.117140 455 1.72 520 2.10 580 2.47 638 2.88 693 3.31 746 3.72 - -

8330 488 2.43 547 2.86 603 3.30 654 3.74 705 4.18 753 4.66 800 5.179520 525 3.32 579 3.82 629 4.30 678 4.80 724 5.28 768 5.80 813 6.32

10710 564 4.47 614 5.01 660 5.55 705 6.09 748 6.63 790 7.22 831 7.7811900 607 5.88 651 6.45 694 7.05 736 7.66 777 8.25 815 8.85 854 9.5013090 650 7.57 691 8.18 730 8.82 769 9.47 808 10.16 845 10.80 881 11.49

FS120 450

14280 695 9.55 732 10.23 769 10.94 805 11.63 842 12.33 877 13.10 909 13.748580 426 1.99 489 2.46 549 2.91 605 3.42 657 3.98 706 4.50 753 5.10

10010 456 2.81 513 3.32 567 3.85 618 4.40 667 4.99 714 5.54 759 6.2111440 491 3.85 542 4.42 591 5.00 638 5.61 683 6.22 727 6.85 769 7.5612870 528 5.17 574 5.80 618 6.42 662 7.09 703 7.76 744 8.42 785 9.1614300 569 6.78 609 7.44 649 8.14 689 8.85 728 9.59 766 10.28 804 11.1115730 610 8.75 647 9.46 684 10.18 720 10.92 757 11.75 792 12.53 827 13.37

FS150 500

17160 652 11.05 686 11.79 720 12.63 754 13.45 787 14.22 821 15.13 853 15.9210800 476 3.37 528 3.88 579 4.43 627 5.01 676 5.64 721 6.26 764 6.8912600 521 4.91 568 5.51 613 6.12 657 6.79 699 7.46 741 8.08 781 8.8314400 572 6.90 612 7.57 652 8.27 691 8.99 730 9.72 768 10.44 805 11.2516200 624 9.47 659 10.18 695 10.91 731 11.73 766 12.54 800 13.27 835 14.2018000 678 12.60 710 13.41 743 14.23 775 15.03 806 15.95 838 16.80 870 17.7119800 733 16.45 763 17.30 791 18.12 821 19.10 850 19.96 880 20.99 908 21.85

FS180 500

21600 789 21.01 817 21.86 844 22.88 869 23.73 897 24.86 924 25.78 - -13950 421 4.26 469 4.91 514 5.62 555 6.31 596 7.06 634 7.83 672 8.5816275 461 6.21 504 6.97 543 7.74 583 8.58 620 9.42 655 10.18 690 11.0818600 505 8.72 542 9.56 578 10.47 613 11.39 648 12.31 682 13.21 714 14.2220925 550 11.92 583 12.88 616 13.81 648 14.84 680 15.89 710 16.83 742 17.9823250 597 15.82 627 16.92 657 18.00 686 19.02 716 20.18 744 21.31 771 22.43

FS240 560

25575 646 20.65 673 21.77 699 22.90 727 24.15 753 25.24 781 26.56 806 27.7116260 412 5.74 435 6.14 460 6.62 493 7.32 531 8.15 569 9.08 603 10.1018585 458 8.27 478 8.72 499 9.22 519 9.67 548 10.45 580 11.38 613 12.3720910 505 11.46 524 12.03 542 12.51 559 13.08 578 13.61 602 14.42 627 15.2323235 552 15.38 572 16.06 587 16.69 603 17.20 619 17.84 636 18.45 653 19.1225560 600 20.11 618 20.94 633 21.65 648 22.31 662 22.87 677 23.55 692 24.26

FS270 630

27885 648 25.72 664 26.70 681 27.53 694 28.29 708 29.00 721 29.62 733 30.3018900 334 5.43 357 5.91 393 6.79 428 7.73 462 8.69 494 9.70 526 10.8122050 378 8.32 394 8.76 415 9.35 445 10.28 477 11.35 506 12.47 535 13.5925200 422 12.07 437 12.61 473 13.14 471 13.82 494 14.80 522 15.95 549 17.1028350 467 16.83 482 17.50 494 18.05 508 18.66 524 19.46 542 20.25 567 21.5631500 511 22.70 526 23.48 539 24.20 550 24.80 562 25.43 577 26.35 590 27.13

FS320 710

34650 555 29.77 571 30.74 583 31.56 594 32.33 605 32.98 615 33.55 628 34.62

FAN DATA

ALTERNATE FORWARD CURVED FANS - Alternate Blower SizeTotal Static Pressure

2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00Model FanModel

Air Vol.(CFM)

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

100011251250 Consult Factory for Alternate Fan Size1375

FS 12 -

15001575 - - - - - - - - - - - - - - - -1800 - - - - - - - - - - - - - - - -2025 1864 1.79 1961 1.96 - - - - - - - - - - - -2250 1889 2.07 1978 2.26 2062 2.44 2142 2.60 - - - - - - - -2475 1919 2.41 2005 2.61 2087 2.78 2167 2.98 2235 3.20 2320 3.38 2403 3.61 - -

FS 22 225

2700 1954 2.76 2036 2.98 2117 3.20 2195 3.41 2270 3.59 2344 3.82 2415 4.03 - -1920 - - - - - - - - - - - - - - - -2240 - - - - - - - - - - - - - - - -2560 1584 2.12 1667 2.29 1752 2.51 - - - - - - - - - -2880 1595 2.50 1676 2.70 1753 2.91 1827 3.14 1899 3.32 - - - - - -3200 1609 2.93 1688 3.14 1764 3.39 1838 3.64 1908 3.85 1977 4.10 2042 4.35 - -3520 1629 3.42 1704 3.65 1779 3.92 1850 4.16 1920 4.43 1987 4.70 2053 4.94 2116 5.20

FS 32 250

3840 1659 4.01 1728 4.25 1798 4.53 1865 4.77 1934 5.07 2000 5.33 2064 5.60 2127 5.912800 - - - - - - - - - - - - - - - -3200 1371 2.44 1442 2.64 - - - - - - - - - - - -3600 1383 2.88 1450 3.10 1517 3.38 1581 3.62 1650 3.89 - - - - - -4000 1403 3.41 1467 3.65 1530 3.92 1590 4.15 1651 4.46 1711 4.74 1767 5.01 1829 5.314400 1432 4.02 1491 4.30 1549 4.56 1607 4.83 1666 5.13 1721 5.40 1776 5.68 1831 6.02

FS 40 280

4800 1465 4.74 1522 5.04 1577 5.31 1633 5.62 1686 5.89 1738 6.18 1792 6.52 1844 6.823018 - - - - - - - - - - - - - - - -3521 - - - - - - - - - - - - - - - -4024 - - - - - - - - - - - - - - - -4527 1245 3.78 1314 4.13 - - - - - - - - - - - -5030 1255 4.42 1315 4.77 1377 5.14 1440 5.54 - - - - - - - -5533 1270 5.17 1330 5.51 1386 5.92 1442 6.32 1497 6.69 1554 7.14 - - - -

FS 48 315

6036 1291 6.05 1345 6.41 1402 6.83 1455 7.20 1508 7.64 1559 8.08 1608 8.48 - -5132 - - - - - - - - - - - - - - - -5773 1062 4.16 1121 4.57 - - - - - - - - - - - -6415 1075 4.94 1126 5.33 1174 5.65 1227 6.12 - - - - - - - -7056 1093 5.84 1141 6.25 1188 6.63 1234 7.05 1277 7.41 1325 7.90 1372 8.37 - -

FS 64 355

7698 1115 6.87 1161 7.27 1206 7.73 1249 8.15 1293 8.57 1334 9.03 1375 9.45 1416 9.875250 - - - - - - - - - - - - - - - -

6000 - - - - - - - - - - - - - - - -6750 961 4.72 1010 5.11 - - - - - - - - - - - -7500 969 5.47 1017 5.92 1063 6.42 1107 6.85 - - - - - - - -8250 984 6.36 1028 6.87 1071 7.33 1113 7.83 1156 8.38 1197 8.88 1238 9.39 - -

FS 80 400

9000 1003 7.47 1044 7.97 1085 8.42 1126 8.99 1165 9.47 1204 9.99 1243 10.60 1281 11.186180 - - - - - - - - - - - - - - - -7210 965 5.14 1014 5.62 1060 6.05 1111 6.60 - - - - - - - -8240 984 6.35 1028 6.86 1071 7.32 1113 7.81 1156 8.37 1197 8.86 1238 9.37 - -9270 1010 7.85 1052 8.41 1092 8.88 1131 9.40 1170 9.96 1207 10.45 1245 11.01 1283 11.63

10300 1042 9.70 1082 10.24 1119 10.71 1156 11.33 1193 11.89 1227 12.37 1263 13.03 1298 13.64

FS100 400

11330 1077 11.78 1114 12.37 1151 12.98 1187 13.58 1221 14.09 1255 14.73 1288 15.38 1320 15.987140 - - - - - - - - - - - - - - - -

8330 847 5.67 892 6.21 - - - - - - - - - - - -9520 855 6.87 896 7.44 937 8.04 976 8.58 1017 9.23 1057 9.93 - - - -

10710 870 8.32 908 8.92 948 9.56 984 10.11 1021 10.84 1058 11.51 1093 12.10 1128 12.7711900 891 10.08 928 10.75 963 11.36 997 11.97 1033 12.71 1066 13.39 1099 14.02 1133 14.8313090 916 12.14 951 12.87 984 13.48 1018 14.23 1050 14.93 1080 15.52 1112 16.33 1144 17.13

FS120 450

14280 943 14.54 975 15.24 1008 16.01 1040 16.79 1070 17.46 1101 18.25 1131 19.05 1160 19.748580 798 5.67 - - - - - - - - - - - - - -

10010 801 6.79 843 7.50 883 8.17 921 8.78 - - - - - - - -11440 811 8.20 850 8.93 888 9.64 925 10.31 961 11.14 996 11.92 1030 12.63 1065 13.4212870 823 9.84 861 10.65 898 11.41 933 12.14 968 13.01 1001 13.81 1034 14.52 1067 15.4514300 839 11.80 876 12.67 911 13.42 946 14.30 979 15.18 1011 15.97 1042 16.85 1074 17.8015730 861 14.19 895 15.03 927 15.82 960 16.77 992 17.63 1023 18.51 1055 19.52 1085 20.45

FS150 500

17160 886 16.90 918 17.71 949 18.71 980 19.60 1008 20.44 1039 21.50 1069 22.47 1097 23.3410800 806 7.58 846 8.24 885 8.92 923 9.69 959 10.38 995 11.05 - - - -12600 820 9.53 859 10.31 895 10.99 931 11.83 966 12.64 1000 13.37 1033 14.19 1066 15.0814400 840 11.95 878 12.83 912 13.61 946 14.45 980 15.35 1011 16.15 1043 17.00 1074 17.9712870 869 14.97 902 15.91 934 16.73 966 17.63 997 18.58 1028 19.43 1059 20.38 1089 21.4114300 901 18.59 932 19.59 962 20.44 992 21.48 1022 22.44 1048 23.28 1078 24.37 1107 25.4415730 938 22.93 966 23.86 995 24.87 1023 25.98 - - - - - - - -

FS180 500

17160 - - - - - - - - - - - - - - - -13950 708 9.39 742 10.18 776 10.97 810 11.93 843 12.83 874 13.64 - - - -16275 723 9.06 756 12.87 787 13.71 818 14.67 848 15.62 877 16.49 905 17.44 935 18.5818600 745 15.06 775 16.12 804 17.03 833 18.05 862 19.15 890 20.13 917 21.11 943 22.2720925 771 18.98 799 20.11 827 21.06 854 22.19 881 23.32 907 24.33 933 25.47 959 26.7223250 799 23.58 827 24.80 854 25.88 880 27.17 904 28.31 929 29.30 954 30.68 977 31.93

FS240 560

25575 832 29.06 857 30.18 882 31.55 907 32.88 932 34.05 956 35.45 979 36.79 1001 38.0016260 636 11.12 666 12.16 697 13.22 727 14.30 757 15.31 786 16.56 - - - -18585 645 13.39 676 14.57 705 15.64 733 16.90 760 18.08 787 19.26 814 20.54 839 21.7520910 656 16.35 685 17.44 715 18.65 743 19.89 769 21.19 795 22.37 820 23.81 845 25.1623235 677 20.11 699 21.06 726 22.30 752 23.44 779 24.84 804 26.11 829 27.57 853 29.0025560 707 24.87 726 25.82 747 26.87 767 27.88 792 29.29 815 30.51 839 31.96 863 33.46

FS270 630

27885 748 31.11 761 31.83 775 32.46 794 33.65 813 34.80 831 35.81 853 37.33 876 38.7618900 557 11.95 587 13.03 616 14.32 - - - - - - - - - -22050 562 14.74 590 16.05 617 17.30 644 18.62 670 19.94 - - - - - -25200 575 18.44 599 19.64 624 21.06 649 22.30 673 23.86 696 25.33 720 26.70 743 28.3128350 590 22.91 615 24.20 638 25.70 660 27.09 682 28.54 705 30.11 725 31.50 747 33.1831500 610 28.35 631 29.74 654 31.26 676 32.75 696 34.26 717 35.92 736 37.41 757 39.06

FS320 710

34650 641 35.55 654 36.35 673 37.92 693 39.44 713 41.04 733 42.78 753 44.29 771 46.11

FAN DATA

AIRFOIL FANSTotal Static Pressure

1.25 1.5 1.75 2 2.25 2.5 2.75Model FanModel

Air Vol.(CFM)

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP2400 1656 0.76 1748 0.88 1835 1.01 1920 1.12 2001 1.25 2081 1.39 2156 1.522800 1784 0.96 1867 1.09 1948 1.24 2027 1.38 2102 1.52 2176 1.66 2247 1.803200 1921 1.21 1998 1.37 2073 1.51 2147 1.66 2217 1.82 2286 1.97 2354 2.143600 2066 1.51 2138 1.67 2207 1.84 2276 2.00 2341 2.17 2406 2.34 2470 2.534000 2220 1.87 2286 2.05 2350 2.23 2413 2.40 2475 2.59 2536 2.79 2595 2.974400 2376 2.29 2438 2.47 2499 2.67 2557 2.87 2616 3.06 2673 3.26 2728 3.47

AF40 315

4800 2538 2.77 2595 2.97 2652 3.18 2708 3.39 2761 3.60 2816 3.82 2870 4.053015 1471 0.92 1552 1.07 1630 1.22 1706 1.38 1778 1.54 1849 1.69 1917 1.873517 1583 1.18 1657 1.34 1729 1.51 1799 1.67 1866 1.84 1933 2.04 1997 2.204020 1705 1.47 1774 1.66 1840 1.83 1904 2.04 1967 2.22 2029 2.42 2090 2.624522 1832 1.83 1896 2.04 1958 2.23 2019 2.44 2078 2.64 2136 2.85 2192 3.065025 1967 2.26 2026 2.49 2085 2.70 2140 2.93 2196 3.15 2251 3.38 2303 3.605527 2105 2.77 2161 3.00 2215 3.24 2268 3.48 2321 3.72 2370 3.96 2421 4.22

AF48 355

6030 2248 3.35 2300 3.60 2350 3.86 2401 4.12 2448 4.39 2498 4.64 2545 4.923852 1328 1.18 1400 1.35 1468 1.54 1536 1.73 1600 1.92 1662 2.13 1722 2.334494 1431 1.49 1497 1.69 1560 1.91 1622 2.12 1682 2.33 1741 2.54 1797 2.775136 1543 1.88 1604 2.10 1662 2.49 1720 2.58 1776 2.80 1830 3.04 1884 3.305778 1661 2.34 1718 2.60 1772 2.84 1826 3.10 1878 3.37 1929 3.63 1979 3.896420 1785 2.89 1838 3.18 1888 3.46 1938 3.72 1987 4.01 2034 4.29 2082 4.577062 1913 3.55 1961 3.85 2009 4.14 2055 4.44 2101 4.75 2145 5.06 2190 5.37

AF64 400

7704 2044 4.30 2089 4.63 2133 4.94 2177 5.27 2220 5.60 2263 5.93 2304 6.264500 1148 1.33 1214 1.55 1279 1.76 1340 1.99 1400 2.23 1456 2.47 1513 2.715250 1230 1.66 1292 1.91 1351 2.16 1408 2.40 1464 2.67 1517 2.93 1570 3.206000 1319 2.08 1377 2.34 1432 2.62 1485 2.89 1537 3.18 1587 3.47 1637 3.756750 1415 2.58 1468 2.85 1519 3.15 1569 3.47 1618 3.76 1664 4.08 1711 4.407500 1515 3.14 1565 3.47 1612 3.79 1658 4.12 1705 4.46 1749 4.79 1792 5.138250 1619 3.82 1664 4.18 1709 4.52 1753 4.88 1795 5.24 1839 5.60 1880 5.97

AF80 450

9000 1725 4.60 1769 4.98 1811 5.35 1851 5.73 1892 6.13 1931 6.52 1970 6.926180 1036 1.83 1093 2.12 1148 2.40 1201 2.70 1252 3.01 1302 3.31 1349 3.637210 1117 2.34 1169 2.66 1218 2.98 1268 3.31 1314 3.64 1362 3.98 1406 4.348240 1205 2.97 1252 3.31 1298 3.67 1343 4.02 1386 4.39 1430 4.77 1472 5.149270 1299 3.71 1341 4.09 1384 4.48 1426 4.88 1466 5.27 1506 5.68 1545 6.10

10300 1396 4.60 1437 5.01 1475 5.44 1513 5.86 1551 6.31 1588 6.75 1625 7.1911330 1498 5.65 1534 6.11 1571 6.56 1607 7.02 1641 7.48 1676 7.97 1711 8.44

AF100 500

12360 1601 6.88 1636 7.36 1669 7.85 1703 8.35 1736 8.85 1767 9.36 1799 9.877170 1113 2.31 1166 2.64 1215 2.96 1265 3.29 1312 3.60 1359 3.96 1403 4.308365 1215 3.05 1263 3.39 1308 3.75 1352 4.12 1396 4.48 1439 4.88 1480 5.269560 1326 3.95 1368 4.34 1409 4.73 1450 5.14 1489 5.55 1529 5.97 1567 6.39

10755 1441 5.05 1479 5.48 1517 5.90 1553 6.36 1590 6.81 1626 7.26 1661 7.7211950 1559 6.36 1594 6.84 1628 7.31 1663 7.80 1697 8.30 1730 8.78 1763 9.2913145 1681 7.94 1714 8.45 1746 8.97 1777 9.49 1809 10.03 1841 10.56 1870 11.10

AF120 500

14340 1806 9.77 1835 10.32 1865 10.90 1895 11.45 1924 12.02 1952 12.60 1982 13.198580 975 2.70 1022 3.08 1069 3.47 1113 3.86 1157 4.27 1199 4.67 1240 5.10

10010 1061 3.52 1103 3.95 1145 4.38 1187 4.81 1226 5.27 1265 5.72 1303 6.1811440 1153 4.53 1192 5.00 1230 5.48 1267 5.97 1304 6.47 1340 6.96 1375 7.4712870 1249 5.76 1285 6.28 1320 6.81 1354 7.32 1388 7.89 1421 8.43 1454 8.9814300 1350 7.22 1382 7.78 1415 8.36 1447 8.95 1478 9.53 1509 10.14 1540 10.7415730 1453 8.97 1484 9.57 1513 10.20 1543 10.83 1572 11.48 1601 12.12 1628 12.77

AF150 560

17160 1559 10.99 1587 11.67 1615 12.34 1642 13.03 1669 13.71 1696 14.41 1723 15.0910800 867 3.35 909 3.82 952 4.30 991 4.79 1030 5.30 1067 5.80 1104 6.3212600 943 4.36 982 4.89 1020 5.43 1056 5.97 1092 6.53 1126 7.10 1160 7.6714400 1026 5.61 1060 6.19 1095 6.79 1128 7.39 1161 8.01 1193 8.64 1224 9.2616200 1111 7.11 1143 7.77 1174 8.43 1205 9.09 1236 9.76 1265 10.44 1294 11.1218000 1201 8.94 1230 9.65 1259 10.36 1288 11.08 1314 11.82 1342 12.56 1370 13.3119800 1293 11.10 1320 11.86 1346 12.65 1372 13.42 1399 14.21 1424 15.01 1449 15.80

AF180 630

21600 1386 13.61 1412 14.45 1437 15.29 1461 16.12 1484 16.97 1509 17.84 1533 18.7113950 784 4.40 821 5.00 857 5.61 892 6.25 926 6.89 959 7.55 991 8.1916275 854 5.76 888 6.43 921 7.11 953 7.82 984 8.53 1015 9.26 1043 10.0018600 930 7.43 960 8.18 990 8.95 1020 9.72 1048 10.50 1076 11.32 1103 12.1220925 1009 9.48 1037 10.30 1065 11.14 1091 11.99 1118 12.86 1143 13.74 1169 14.6223250 1092 11.91 1118 12.83 1142 13.75 1167 14.69 1192 15.62 1215 16.56 1239 17.5325575 1176 14.83 1200 15.83 1224 16.82 1245 17.83 1269 18.85 1292 19.88 1313 20.90

AF240 710

27900 1263 18.24 1284 19.30 1306 20.38 1328 21.47 1348 22.57 1369 23.68 1391 24.7816250 854 5.73 887 6.40 920 7.10 952 7.80 983 8.51 1014 9.24 1043 9.9719000 943 7.76 973 8.52 1002 9.29 1031 10.08 1059 10.88 1088 11.70 1114 12.5321700 1037 10.24 1063 11.10 1091 11.96 1117 12.84 1141 13.74 1167 14.63 1192 15.5424400 1134 13.29 1158 14.25 1181 15.21 1206 16.18 1230 17.16 1252 18.14 1275 19.1327100 1233 17.00 1256 18.05 1277 19.09 1299 20.15 1320 21.22 1342 22.30 1364 23.3929800 1335 2142.26 1354 22.56 1375 23.70 1396 24.86 1415 26.01 1435 27.19 1454 28.37

AF270 710

32500 1438 26.62 1456 27.86 1475 29.09 1494 30.34 1512 31.59 1531 32.85 1549 34.1218900 722 6.18 754 6.97 784 7.78 815 8.61 844 9.46 871 10.31 900 11.1922050 791 8.18 820 9.07 848 9.99 874 10.92 901 11.86 927 12.79 953 13.7925200 865 10.68 891 11.67 916 12.69 941 13.72 965 14.76 989 15.80 1012 16.8928350 943 13.74 966 14.84 989 15.96 1011 17.09 1034 18.22 1056 19.39 1077 20.5631500 1023 17.43 1044 18.63 1065 19.85 1086 21.09 1106 22.34 1127 23.60 1146 24.8734650 1104 21.81 1124 23.14 1143 24.45 1163 25.79 1181 27.16 1200 28.52 1220 29.88

AF320 800

37800 1188 26.96 1205 28.40 1224 29.83 1241 31.28 1260 32.72 1276 34.21 1294 35.6825200 668 8.73 695 9.78 722 10.87 748 11.95 774 13.07 797 14.19 822 15.3329400 736 11.70 761 12.90 785 14.11 808 15.33 831 16.58 853 17.85 874 19.1233600 809 15.40 830 16.75 852 18.09 872 19.46 894 20.86 915 22.26 934 23.6637800 884 19.96 903 21.43 923 22.94 942 24.45 961 25.98 980 27.53 998 29.0942000 960 25.46 979 27.08 996 28.74 1014 30.40 1031 32.08 1049 33.76 1066 35.4646200 1038 32.00 1055 33.80 1071 35.59 1089 37.39 1104 39.22 1121 41.05 1136 42.90

AF420 900

50400 1119 39.72 1134 41.65 1148 43.61 1164 45.57 1179 47.51 1195 49.49 1209 51.4926900 561 8.36 588 9.52 614 10.70 639 11.89 663 13.12 687 14.38 711 15.6431400 612 10.94 636 12.23 659 13.55 682 14.90 705 16.26 726 17.66 748 19.0635900 665 14.12 687 15.55 709 17.03 730 18.51 751 20.02 770 21.56 790 23.1040370 722 17.97 742 19.56 762 21.18 781 22.80 800 24.45 819 26.12 836 27.8144850 781 22.61 799 24.35 817 26.11 835 27.88 853 29.69 869 31.50 887 33.3449340 840 28.12 858 30.01 874 31.92 891 33.85 907 35.80 924 37.76 939 39.73

AF520 1000

53820 902 34.57 918 36.60 934 38.66 950 40.74 964 42.82 980 44.94 994 47.0732850 494 10.04 518 11.45 542 12.91 564 14.38 587 15.92 609 17.45 629 19.0438330 538 13.05 559 14.65 581 16.28 602 17.91 622 19.62 642 21.32 661 23.0343800 584 16.78 604 18.54 623 20.34 642 22.14 661 24.02 679 25.90 697 27.7949280 632 21.30 651 23.24 668 25.22 686 27.21 703 29.25 720 31.29 737 33.3854750 683 26.70 699 28.83 716 30.99 732 33.17 748 35.37 764 37.61 780 39.8660230 734 33.13 751 35.43 765 37.77 781 40.13 796 42.52 811 44.92 824 47.34

AF640 1120

65700 788 40.61 802 43.11 817 45.63 830 48.18 845 50.75 858 53.34 871 55.95

FAN DATA


3.00 3.25 3.50 3.75 4.00 4.25 4.50Model FanModel

Air Vol.(CFM)

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP2400 2232 1.66 2304 1.80 2374 1.93 2443 2.09 2511 2.23 2577 2.39 2641 2.532800 2318 1.96 2387 2.12 2452 2.26 2517 2.42 2582 2.59 2645 2.75 2707 2.923200 2418 2.30 2483 2.47 2546 2.64 2608 2.80 2669 2.98 2728 3.15 2787 3.343600 2531 2.70 2593 2.88 2652 3.06 2710 3.24 2768 3.42 2824 3.63 2880 3.814000 2653 3.15 2711 3.35 2768 3.54 2822 3.73 2878 3.93 2931 4.14 2984 4.354400 2784 3.68 2838 3.88 2891 4.09 2945 4.30 2996 4.52 3047 4.73 3097 4.94

AF40 315

4800 2920 4.26 2973 4.48 3023 4.72 3074 4.93 3122 5.15 3170 5.38 3220 5.633015 1984 2.04 2048 2.20 2110 2.37 2172 2.54 2233 2.72 2292 2.92 2348 3.103517 2059 2.39 2121 2.58 2179 2.77 2237 2.96 2295 3.15 2351 3.35 2406 3.554020 2148 2.80 2206 3.01 2262 3.21 2316 3.42 2371 3.64 2425 3.85 2476 4.064522 2246 3.29 2302 3.51 2355 3.73 2406 3.95 2459 4.18 2509 4.42 2559 4.645025 2356 3.84 2407 4.08 2457 4.31 2506 4.56 2555 4.80 2603 5.05 2650 5.305527 2470 4.47 2518 4.72 2566 4.97 2613 5.24 2659 5.50 2705 5.76 2750 6.02

AF48 355

6030 2590 5.18 2637 5.46 2682 5.72 2726 5.99 2770 6.28 2814 6.56 2857 6.853852 1781 2.54 1839 2.76 1894 2.97 1949 3.18 2002 3.41 2055 3.64 2105 3.864494 1852 3.00 1907 3.24 1959 3.47 2011 3.71 2061 3.95 2112 4.19 2160 4.445136 1935 3.54 1986 3.79 2036 4.05 2085 4.30 2132 4.56 2179 4.83 2226 5.105778 2027 4.17 2075 4.43 2123 4.71 2168 4.98 2213 5.27 2259 5.55 2303 5.846420 2127 4.88 2172 5.15 2218 5.46 2260 5.76 2304 6.06 2346 6.36 2389 6.687062 2234 5.68 2276 5.99 2318 6.31 2360 6.64 2401 6.96 2441 7.28 2480 7.61

AF64 400

7704 2345 6.59 2385 6.93 2426 7.27 2465 7.61 2504 7.97 2542 8.31 2580 8.664500 1567 2.97 1619 3.22 1671 3.50 1720 3.75 1769 4.02 1816 4.29 1863 4.575250 1621 3.48 1670 3.75 1718 4.04 1766 4.34 1813 4.62 1857 4.90 1902 5.226000 1685 4.06 1731 4.36 1777 4.66 1822 4.97 1866 5.28 1910 5.60 1952 5.936750 1757 4.72 1800 5.05 1844 5.37 1887 5.71 1929 6.05 1969 6.39 2011 6.737500 1835 5.48 1877 5.82 1919 6.18 1959 6.55 1999 6.90 2038 7.26 2078 7.648250 1920 6.34 1960 6.72 1999 7.09 2037 7.47 2074 7.85 2113 8.26 2150 8.65

AF80 450

9000 2010 7.31 2047 7.72 2084 8.11 2121 8.52 2157 8.94 2193 9.35 2228 9.776180 1398 3.95 1443 4.27 1487 4.60 1532 4.96 1575 5.30 1616 5.65 1656 5.997210 1450 4.69 1494 5.05 1535 5.40 1576 5.77 1617 6.15 1656 6.53 1695 6.928240 1512 5.52 1553 5.93 1592 6.32 1630 6.70 1670 7.11 1707 7.55 1744 7.959270 1583 6.51 1621 6.93 1658 7.36 1694 7.78 1731 8.24 1766 8.68 1801 9.12

10300 1661 7.64 1696 8.10 1730 8.55 1765 9.02 1800 9.49 1833 9.95 1865 10.4311330 1744 8.93 1777 9.41 1811 9.91 1843 10.41 1875 10.91 1906 11.41 1937 11.94

AF100 500

12360 1831 10.40 1863 10.91 1894 11.44 1924 11.96 1955 12.50 1985 13.05 2015 13.597170 1447 4.64 1491 5.01 1533 5.37 1574 5.73 1615 6.13 1655 6.49 1693 6.888365 1520 5.64 1560 6.04 1601 6.43 1639 6.84 1676 7.24 1714 7.67 1751 8.089560 1604 6.81 1642 7.24 1679 7.69 1714 8.11 1749 8.56 1785 9.02 1819 9.48

10755 1697 8.18 1731 8.65 1765 9.14 1798 9.60 1832 10.10 1865 10.58 1897 11.0811950 1796 9.78 1828 10.30 1859 10.79 1891 11.32 1923 11.85 1953 12.37 1983 12.9013145 1900 11.63 1930 12.19 1961 12.74 1990 13.29 2019 13.85 2047 14.42 2076 14.99

AF120 500

14340 2011 13.76 2038 14.34 2065 14.95 2093 15.54 2121 16.13 2149 16.75 2175 17.348580 1280 5.54 1319 5.97 1359 6.40 1397 6.86 1433 7.31 1469 7.77 1504 8.24

10010 1341 6.66 1377 7.14 1412 7.61 1448 8.11 1483 8.62 1517 9.12 1549 9.6111440 1410 7.99 1444 8.51 1477 9.03 1510 9.57 1543 10.12 1575 10.66 1606 11.2012870 1486 9.54 1518 10.11 1549 10.68 1580 11.27 1611 11.86 1641 12.44 1670 13.0314300 1569 11.35 1599 11.96 1628 12.58 1657 13.21 1685 13.83 1713 14.46 1742 15.1215730 1657 13.42 1685 14.09 1712 14.76 1739 15.42 1765 16.09 1792 16.79 1819 17.49

AF150 560

17160 1749 15.80 1775 16.50 1800 17.23 1826 17.96 1851 18.68 1876 19.40 1900 20.1310800 1140 6.86 1175 7.39 1209 7.94 1243 8.51 1276 9.07 1308 9.64 1339 10.2112600 1194 8.27 1226 8.85 1258 9.44 1290 10.07 1320 10.70 1350 11.31 1379 11.9414400 1255 9.90 1285 10.56 1314 11.20 1344 11.87 1373 12.56 1402 13.23 1430 13.9116200 1323 11.83 1351 12.53 1378 13.24 1407 13.96 1434 14.70 1461 15.42 1486 16.1518000 1397 14.07 1422 14.82 1449 15.59 1475 16.37 1500 17.14 1524 17.92 1550 18.7319800 1474 16.63 1500 17.46 1523 18.29 1547 19.10 1571 19.94 1595 20.81 1619 21.67

AF180 630

21600 1556 19.58 1579 20.46 1602 21.34 1625 22.23 1647 23.14 1670 24.03 1691 24.9413950 1023 8.89 1054 9.59 1084 10.27 1113 10.99 1143 11.73 1171 12.46 1199 13.1716275 1073 10.75 1102 11.52 1130 12.29 1157 13.04 1185 13.86 1211 14.66 1238 15.4718600 1131 12.94 1158 13.78 1183 14.62 1209 15.45 1235 16.33 1260 17.20 1284 18.0820925 1195 15.51 1220 16.42 1243 17.33 1267 18.25 1292 19.19 1315 20.14 1338 21.0823250 1263 18.51 1285 19.47 1308 20.47 1331 21.47 1353 22.47 1375 23.48 1397 24.4925575 1335 21.94 1357 23.01 1378 24.07 1399 25.14 1419 26.20 1440 27.30 1462 28.41

AF240 710

27900 1410 25.91 1431 27.03 1450 28.16 1471 29.33 1490 30.49 1510 31.65 1529 32.8116250 1072 10.73 1101 11.49 1129 12.25 1157 13.03 1185 13.83 1211 14.63 1237 15.4419000 1141 13.36 1168 14.20 1194 15.05 1218 15.91 1243 16.78 1269 17.68 1294 18.5821700 1216 16.45 1241 17.38 1265 18.34 1288 19.27 1311 20.22 1335 21.21 1358 22.1924400 1298 20.15 1320 21.17 1342 22.19 1364 23.21 1385 24.26 1407 25.32 1429 26.3727100 1384 24.49 1404 25.58 1426 26.70 1446 27.83 1466 28.96 1485 30.08 1505 31.2229800 1474 29.54 1494 30.74 1512 31.95 1531 33.16 1549 34.35 1569 35.59 1587 36.84

AF270 710

32500 1567 35.39 1584 36.68 1603 37.98 1620 39.27 1638 40.58 1655 41.89 1673 43.2118900 927 12.07 954 12.96 980 13.91 1005 14.83 1030 15.74 1055 16.72 1079 17.7022050 977 14.78 1002 15.75 1027 16.78 1051 17.80 1073 18.84 1096 19.84 1120 20.9425200 1036 17.97 1058 19.05 1080 20.17 1103 21.30 1125 22.42 1145 23.53 1167 24.7028350 1099 21.73 1120 22.93 1141 24.15 1162 25.36 1181 26.56 1201 27.79 1222 29.0831500 1166 26.15 1187 27.45 1205 28.75 1225 30.05 1243 31.39 1263 32.72 1281 34.0834650 1238 31.28 1256 32.67 1273 34.08 1292 35.50 1309 36.92 1327 38.35 1344 39.78

AF320 800

37800 1311 37.17 1329 38.66 1345 40.18 1362 41.69 1378 43.21 1395 44.75 1412 46.3225200 846 16.50 868 17.67 890 18.84 913 20.07 934 21.31 956 22.53 976 23.7429400 897 20.42 918 21.73 938 23.03 959 24.36 980 25.74 999 27.11 1019 28.4833600 955 25.11 974 26.54 993 27.99 1011 29.46 1031 30.96 1050 32.47 1068 33.9637800 1017 30.66 1035 32.22 1053 33.82 1070 35.44 1088 37.07 1105 38.69 1122 40.3242000 1083 37.15 1100 38.89 1117 40.64 1133 42.39 1149 44.13 1165 45.88 1181 47.6846200 1153 44.74 1168 46.62 1183 48.47 1198 50.37 1213 52.29 1229 54.20 1244 56.12

AF420 900

50400 1224 53.49 1238 55.51 1254 57.53 1268 59.56 1281 61.59 1296 63.63 1309 65.7026900 733 16.97 756 18.29 777 19.59 798 21.00 820 22.39 840 23.77 860 25.1431400 769 20.50 790 21.96 810 23.43 829 24.90 850 26.45 868 27.98 888 29.5235900 810 24.68 829 26.28 848 27.87 866 29.49 885 31.16 903 32.84 921 34.5040370 855 29.54 873 31.26 890 33.00 907 34.77 925 36.58 942 38.38 959 40.1744850 903 35.20 920 37.05 936 38.94 953 40.86 969 42.78 985 44.70 1000 46.6549340 955 41.73 971 43.75 987 45.79 1001 47.83 1017 49.87 1031 51.97 1046 54.09

AF520 1000

53820 1009 49.22 1024 51.38 1037 53.55 1053 55.76 1067 57.97 1080 60.19 1095 62.4132850 650 20.65 671 22.24 690 23.92 710 25.62 728 27.32 747 28.99 764 30.7938330 681 24.85 699 26.62 717 28.40 735 30.28 753 32.17 770 34.04 787 35.8843800 715 29.74 732 31.70 749 33.63 766 35.69 783 37.74 799 39.77 815 41.7949280 754 35.48 769 37.60 786 39.74 801 41.94 817 44.15 832 46.33 847 48.5554750 795 42.12 810 44.44 825 46.76 839 49.10 854 51.44 868 53.82 883 56.2660230 839 49.81 854 52.29 867 54.77 881 57.27 895 59.83 908 62.41 922 64.99

AF640 1120

65700 885 58.58 898 61.22 912 63.91 925 66.60 937 69.31 951 72.03 963 74.75

FAN DATA


4.75 5.00 5.25 5.00 5.75 6.00Model FanModel

Air Vol.(CFM)

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP2400 2705 2.68 2768 2.84 2828 3.01 2888 3.17 2947 3.33 3005 3.482800 2767 3.06 2826 3.24 2885 3.41 2943 3.59 2998 3.76 3054 3.933200 2844 3.51 2900 3.69 2957 3.88 3012 4.06 3066 4.25 3119 4.433600 2934 4.00 2988 4.19 3043 4.39 3095 4.59 3147 4.79 3197 4.984000 3035 4.55 3088 4.76 3139 4.97 3189 5.17 3238 5.38 3287 5.604400 3148 5.17 3197 5.38 3246 5.61 3293 5.82 3339 6.05 3388 6.28

AF40 315

4800 3267 5.85 3314 6.10 3359 6.32 3405 6.56 3452 6.81 3497 7.053015 2405 3.29 2462 3.48 2515 3.68 2569 3.86 2621 4.06 2673 4.263517 2459 3.75 2512 3.96 2565 4.18 2616 4.38 2667 4.59 2715 4.804020 2528 4.27 2578 4.51 2629 4.73 2677 4.96 2725 5.18 2773 5.424522 2607 4.88 2655 5.11 2703 5.35 2750 5.60 2795 5.84 2841 6.085025 2697 5.54 2743 5.80 2788 6.05 2833 6.31 2877 6.56 2920 6.845527 2794 6.30 2839 6.56 2882 6.84 2924 7.10 2966 7.37 3009 7.65

AF48 355

6030 2899 7.13 2942 7.41 2982 7.70 3024 7.98 3064 8.28 3104 8.583852 2156 4.09 2205 4.34 2254 4.57 2302 4.81 2348 5.06 2394 5.304494 2207 4.69 2254 4.94 2301 5.22 2346 5.47 2392 5.73 2435 5.995136 2271 5.37 2315 5.64 2361 5.93 2404 6.21 2447 6.49 2490 6.775778 2346 6.14 2388 6.42 2431 6.72 2472 7.03 2513 7.32 2553 7.636420 2429 6.99 2470 7.30 2510 7.63 2550 7.94 2589 8.27 2628 8.587062 2520 7.94 2560 8.28 2598 8.62 2635 8.97 2672 9.31 2709 9.65

AF64 400

7704 2618 9.02 2654 9.37 2691 9.73 2726 10.08 2763 10.45 2799 10.824500 1909 4.85 1953 5.14 1997 5.43 2040 5.72 2083 6.04 2125 6.355250 1947 5.52 1989 5.82 2031 6.14 2071 6.44 2114 6.77 2154 7.106000 1994 6.26 2035 6.59 2075 6.92 2115 7.26 2154 7.60 2193 7.956750 2051 7.09 2090 7.44 2128 7.80 2166 8.15 2204 8.52 2241 8.897500 2116 8.01 2153 8.40 2189 8.77 2226 9.15 2262 9.54 2298 9.948250 2186 9.05 2222 9.44 2257 9.85 2293 10.25 2327 10.66 2361 11.08

AF80 450

9000 2262 10.19 2297 10.61 2331 11.06 2365 11.48 2398 11.90 2430 12.346180 1696 6.35 1737 6.73 1776 7.10 1814 7.48 1851 7.85 1888 8.237210 1733 7.28 1771 7.70 1809 8.10 1845 8.51 1881 8.93 1916 9.328240 1780 8.35 1816 8.79 1851 9.23 1886 9.66 1920 10.10 1954 10.549270 1835 9.56 1869 10.03 1903 10.49 1936 10.95 1969 11.42 2000 11.87

10300 1899 10.92 1931 11.42 1963 11.90 1994 12.40 2025 12.88 2056 13.4011330 1969 12.44 1999 12.95 2029 13.48 2059 13.99 2089 14.54 2119 15.08

AF100 500

12360 2044 14.13 2072 14.67 2101 15.24 2130 15.80 2159 16.38 2187 16.957170 1731 7.24 1770 7.65 1807 8.07 1844 8.47 1880 8.86 1914 9.288365 1786 8.51 1821 8.93 1857 9.36 1892 9.82 1926 10.25 1959 10.709560 1853 9.93 1886 10.39 1919 10.87 1952 11.35 1985 11.83 2016 12.30

10755 1929 11.56 1960 12.06 1992 12.58 2023 13.09 2053 13.61 2083 14.1211950 2013 13.44 2044 13.98 2072 14.53 2101 15.07 2130 15.61 2158 16.1713145 2104 15.57 2133 16.13 2160 16.72 2187 17.30 2215 17.88 2242 18.48

AF120 500

14340 2201 17.96 2227 18.56 2254 19.19 2280 19.83 2306 20.46 2332 21.088580 1540 8.72 1574 9.20 1607 9.69 1640 10.17 1672 10.63 1705 11.16

10010 1583 10.14 1615 10.68 1647 11.20 1679 11.73 1709 12.25 1740 12.7911440 1637 11.78 1668 12.36 1697 12.92 1727 13.49 1756 14.07 1785 14.6412870 1700 13.65 1728 14.26 1757 14.87 1785 15.49 1812 16.09 1840 16.7414300 1770 15.76 1796 16.42 1823 17.08 1849 17.72 1876 18.41 1902 19.0915730 1845 18.17 1870 18.87 1895 19.56 1921 20.29 1947 21.00 1971 21.72

AF150 560

17160 1925 20.86 1950 21.61 1975 22.38 1998 23.13 2022 23.88 2045 24.6210800 1371 10.82 1401 11.42 1431 12.02 1461 12.61 1489 13.21 1518 13.8512600 1409 12.57 1438 13.24 1467 13.90 1495 14.56 1521 15.20 1549 15.8714400 1456 14.61 1484 15.32 1511 16.03 1538 16.74 1564 17.45 1589 18.1616200 1512 16.92 1539 17.68 1564 18.43 1588 19.21 1613 19.95 1638 20.7518000 1575 19.55 1599 20.35 1622 21.17 1646 21.97 1670 22.81 1693 23.6619800 1642 22.51 1664 23.36 1687 24.24 1710 25.14 1732 26.03 1754 26.91

AF180 630

21600 1713 25.86 1736 26.79 1757 27.73 1778 28.66 1799 29.61 1820 30.5313950 1227 13.94 1254 14.71 1280 15.49 1306 16.26 1332 17.03 1357 17.7916275 1263 16.26 1289 17.10 1314 17.48 1339 18.80 1363 19.66 1386 20.5018600 1308 18.95 1333 19.85 1357 20.78 1380 21.71 1403 22.61 1426 23.7020925 1361 22.02 1383 23.01 1397 23.99 1428 24.97 1449 25.97 1471 26.9323250 1418 25.54 1440 26.58 1462 27.62 1482 28.67 1502 29.71 1522 30.7925575 1481 29.52 1502 30.62 1521 31.74 1541 32.85 1560 34.00 1580 35.16

AF240 710

27900 1548 33.97 1567 35.17 1586 36.38 1605 37.59 1623 38.80 1642 39.9916250 1263 16.24 1289 17.08 1313 17.92 1339 18.77 1363 19.63 1386 20.4719000 1317 19.46 1340 20.35 1364 21.27 1387 22.23 1411 23.17 1433 24.1021700 1379 23.15 1401 24.14 1423 25.14 1445 26.16 1467 27.09 1488 28.2124400 1449 27.43 1470 28.49 1490 29.61 1511 30.70 1531 31.80 1551 32.8927100 1524 32.38 1544 33.55 1564 34.73 1582 35.89 1602 37.07 1619 38.2329800 1606 38.06 1623 39.32 1641 40.56 1658 41.81 1677 43.10 1694 44.37

AF270 710

32500 1689 44.53 1707 45.88 1724 47.23 1741 48.58 1757 49.93 1774 51.2918900 1103 18.68 1126 19.64 1148 20.60 1171 21.65 1194 22.69 1216 23.7422050 1141 22.02 1164 23.10 1186 24.16 1206 25.23 1228 26.37 1248 27.5325200 1189 25.87 1209 27.06 1229 28.23 1248 29.38 1269 30.61 1289 31.8628350 1241 30.34 1261 31.59 1279 32.85 1298 34.13 1317 35.47 1336 36.7931500 1299 35.43 1317 36.77 1335 38.15 1353 39.56 1371 40.97 1388 42.3734650 1362 41.24 1379 42.73 1396 44.20 1413 45.70 1430 47.17 1445 48.65

AF320 800

37800 1428 47.87 1444 49.43 1460 51.00 1475 52.55 1491 54.18 1507 55.8025200 997 25.03 1018 26.33 1038 27.64 1058 28.92 1077 30.20 1096 31.5029400 1037 29.83 1057 31.26 1076 32.71 1095 34.14 1112 35.58 1131 37.0033600 1086 35.47 1103 37.02 1121 38.59 1138 40.15 1156 41.72 1172 43.2737800 1138 41.98 1156 43.66 1172 45.36 1189 47.04 1204 48.74 1221 50.4142000 1197 49.49 1212 51.29 1228 53.11 1243 54.91 1258 56.72 1273 58.6146200 1259 58.04 1273 59.96 1288 61.91 1302 63.91 1316 65.89 1331 67.88

AF420 900

50400 1324 67.78 1338 69.86 1351 71.97 1365 74.07 1378 76.17 1392 78.2826900 880 26.62 899 28.11 919 29.58 937 31.07 955 32.51 973 33.9931400 905 31.04 924 32.67 942 34.30 960 35.92 977 37.55 995 39.1535900 938 36.17 956 37.91 972 39.68 990 41.44 1006 43.20 1022 44.9240370 974 41.99 992 43.87 1007 45.76 1024 47.64 1039 49.51 1055 51.3844850 1017 48.65 1032 50.65 1046 52.65 1062 54.64 1076 56.64 1091 58.7249340 1061 56.19 1075 58.31 1090 60.42 1104 62.58 1118 64.79 1132 66.98

AF520 1000

53820 1108 64.64 1122 66.93 1136 69.23 1149 71.55 1163 73.85 1175 76.1532850 783 32.62 800 34.42 817 36.22 833 38.00 850 39.85 867 41.8138330 804 37.88 821 39.87 837 41.86 853 43.83 868 45.78 884 47.8443800 831 43.94 847 46.08 862 48.22 878 50.37 892 52.48 906 54.6949280 862 50.85 878 53.15 892 55.45 906 57.74 920 60.02 934 62.4454750 897 58.70 912 61.15 925 63.58 938 66.02 952 68.58 965 71.1560230 935 67.56 948 70.14 961 72.80 974 75.49 987 78.18 1000 80.87

AF640 1120

65700 975 77.55 988 80.37 1000 83.17 1012 85.98 1025 88.79 1036 91.61

B

CHILLEDSUPPLY

AIR AIRRETURN

D

WATER

A

CHILLEDWATEROUTLET

INLET

C

1 1/2"MPTDRAIN L

"T"SEE

NOTE4.

B

SUPPLYAIR

A

H1

H2

AIRRETURN

C

CHILLED

CHILLED

WATER

WATEROUTLET

INLET

1 1/2" MPTDRAIN L

"T" SEE NOTE 4.

INLET

OUTLETWATER

TOP DAMPER LOCATION

AIRRETURN

WATER

CHILLED

CHILLED

1 1/2" MPTDRAIN

"T"SEE

NOTE4.

LB

E

REARDAMPERLOCATION

C

H1

D

DIFFUSER

COOLING

HEATING

H2

A

DIMENSIONAL DATA

SINGLE ZONE HORIZONTAL TYPE

Model Dim. C12 30 1/222 3230 3640 38 1/248 40

ModelDim.

12 22 30 40 48 64 80 100 120 150 180 240 270 320 420 480 590

A 34 46 48 58 68 74 76 76 80 80 92 120 120 138 154 154 184B 49 50 54 60 60 62 66 66 66 70 78 86 86 86 122 122 126C* 28 1/2 30 34 36 1/2 38 43 49 56 66 81 81 81 88 1/2 88 1/2 96 108 1/2 108 1/2D - - - - - - - - - - - - - - 86 86 90L 24 5/16 24 5/16 26 3/4 24 24 24 24 24 24 24 24 24 24 24 18 18 18

SINGLE ZONE VERTICAL TYPENotes:1.) For 2” panel, add 2” at “A”, “B”,

“H1”, and “H2”. Add 2” at “C”for model up to 48 and 4” formodel 64 onwards. Add 1” at“L” for all models and 1” at “T”for model 240 thru 590.

* If Spring Internal Isolation, Seechart at below.

Model Dim. C12 5622 5930 6940 7448 75

ModelDim.

12 22 30 40 48 64 80 100 120 150 180 240 270 320

A 34 46 48 58 68 74 76 76 80 80 92 120 120 138B 25 1/2 29 33 35 1/2 40 1/2 41 1/2 45 49 49 54 59 3/4 68 68 70C* 54 57 67 72 73 84 1/2 94 105 115 135 140 3/4 151 158 1/2 163 1/2H1 - - - - - 41 1/2 45 49 49 54 59 3/4 70 70 75H2 - - - - - 43 49 56 66 81 81 81 88 1/2 88 1/2L 12 9/16 14 1/2 16 1/2 17 3/4 20 1/4 20 3/4 22 1/2 24 1/2 24 1/2 24 24 24 24 24

MULTI- ZONE TYPE

Note:For 2” panel, add 2”at “A”, “C”, “D”. Add2” at “B” for model upto 320 and 4” formodel 420 onwards.Add 1” at “L” for allmodels and 1” at “T”for model 240 thru590.

ModelDim.

22 30 40 48 64 80 100 120 150 180 240 270 320 420 480 590

A 46 48 58 68 74 76 76 80 80 92 120 120 138 154 154 184B 58 73 83 1/2 88 1/2 97 1/2 101 113 113 128 133 1/2 152 152 156 172 172 180C 48 52 54 1/2 56 65 71 80 90 109 109 113 120 1/2 128 1/2 133 1/2 156 1/2 156 1/2D 28 33 35 1/2 40 1/2 41 1/2 45 49 49 54 59 1/2 68 68 70 86 86 90E 40 40 48 48 56 56 64 64 74 74 84 84 86 86 86 90

H1 18 18 18 18 22 22 24 24 28 28 32 32 40 48 48 48H2 30 34 36 1/2 38 43 49 56 66 81 81 81 88 1/2 88 1/2 108 1/2 108 1/2 108 1/2L 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18

Notes: 1.) All dimensions are in inches.2.) Motor hand is determined by air-in-face method. For vertically configured units, hand is determined air-in-face as the air goes through the

coil.3.) Coil drain connection is 1 1/2” MPT.4.) T dimension: Size 12 to 180 = 2”, Size 240 to 590 = 3”

Notes:1.)For 2” panel, add 2” at “A”, “C”,

“D”. Add 2” at “B” for model upto 320 and 4” for model 420onwards. Add 1” at “L” for allmodels and 1” at “T” for model240 thru 590.

* If Spring Internal Isolation, Seechart at below.

B B

A A

10"

B 1 1/2"

A

1 1/2"B

A

B

A

E

E

D x E

E

B

A

A

B

1 1/2"1 1/2"B

D x E

A

2 x BD x E

AD x E

D x E

B

A

B

A

1 1/2"1 1/2"

llll

1 1/2"

B

A

DIMENSIONAL DATA

ACCESSORY SECTIONSSection 1 or 2

Fan OnlySection 6

Preheat SectionSection 7 & 8

Coil ModuleSection 20

External Face & Bypass(See Note 4)

Section 17Internal Face &

Bypass

Section 16Standard Mixing Box

Section 16CComb. Angle Filter Mixing Box

Section 11 & 23Angle Filter Section

Section 13Bag & Flat Filter Section

Section 26Discharge Plenum

Section 27Diffuser Section

Section 31Economizer

Section 10Flat Section

Model 12 22 30 40 48 64 80 100 120 150 180 240 270 320 420 480 540

Unit Height A 28 1/2 30 34 36 1/2 38 43 49 56 66 81 81 81 88 1/2 88 1/2 96 108 1/2 108 1/2

Fan Only - Sect. 1 or 2 B 25 1/2 28 33 35 1/2 40 1/2 41 1/2 45 49 49 54 59 3/4 68 68 70 86 86 90Coil Module - Sect. 7 B 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24Coil Module - Sect. 8 B 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36

External Sect. 20 B 26 3/8 26 3/8 26 3/8 26 3/8 26 3/8 26 3/8 26 3/8 26 3/8 26 3/8 32 3/8 32 3/8 32 3/8 37 3/8 37 3/8 37 3/8 43 5/8 43 5/8Face &Bypass Internal Sect. 17 B 6 6 6 8 8 8 8 8 8 8 8 10 10 10 10 10 10

Standard Sect. 16 B 16 16 22 22 22 22 22 30 30 32 32 44 44 48 48 60 60MixingBox Comb. Filter Sect.

16CB 24 24 32 32 32 36 36 40 43 44 44 48 48 56 60 72 72

D 8 8 14 14 14 14 14 22 22 24 24 36 36 40 40 52 52Mixing Box - Sect. 16, 16CDisch. Plenum - Sect. 26Economizer - Sect. 31

E 15 27 22 28 33 44 55 44 53 60 72 64 72 77 101 96 119

Angle Filter - Sect. 11 & 23 B 22 22 22 22 22 22 22 22 22 22 22 24 24 24 24 24 24Bag & Flag Filter Sect. 13 B 30 30 30 30 30 30 30 30 32 32 36 36 36 36 36 36 36Diffuser - Sect. 27 B 16 16 22 22 22 22 22 30 30 32 32 36 36 48 48 60 60Preheat - Sect. 6 B 10 10 10 10 10 12 12 14 14 16 16 24 24 24 24 24 24

Notes: 1.) All dimensions are in inches.2.) For 2” panel, add 2” at “A”, “B”, and “C”.3.) Coil drain connection is 1 1/2” MPT.

4.) Bypass duct not included.5.) To be included in coil section.

Coil Casing DepthCoil - Rows

1 2 3 4 5 6 8 10 12Moisture

Eliminator

Depth In Direction Of Air Flow 3.3 3.3 5.4 6.8 8.2 9.5 12.3 15.0 17.7 6.0

The Maximum coil and/or spacer depth, in direction of air flow, is referenced on these drawings.Heating section #6 = 3.3” Standard coil section #7 = 15.5” (19” with reheat coil) Long coil section #8 = 27.5” (31” with reheat coil)

P2QP1

R

S3

AIROUT

AIRIN R

S1

P1 Q P2

AIROUT

INAIR R

S1

P1 Q P2

AIRIN

OUTAIR

R

AIROUT

AIRIN

S2

P1 Q P2

RS1

P1 Q P2

R

P1 QP2

AIROUT

AIRIN

OUTAIR

AIRIN

S3

P1 QP2

QP1P2

P2QP1

RR

P1P2

AIRIN

AIRIN

AIRIN

AIROUT OUT

AIR

AIROUT OUT

AIR

S1

Q

S1

S4

R

S4

R

DIMENSIONAL DATA

DISCHARGE ARRANGEMENTS

A.) FAN SECTION ONLY

Arrangement #3 Arrangement #2 Arrangement #1

B.) SINGLE ZONE HORIZONTAL TYPE

Arrangement #3 Arrangement #2 Arrangement #1

C.) SINGLE ZONE VERTICAL TYPE

Arrangement #5 Arrangement #2 Arrangement #4 Arrangement #3

Forward Curved Blower Backward Inclined Airfoil BlowerModel

P1 P2 Q R S1 S2 S3 S4 P1 P2 Q R S1 S2 S3 S4

12 7 3/4 16 1/4 10 10 4 3/16 7 1/2 6 4 3/16 - - - - - - - -

22 13 9/16 19 11/16 12 3/4 12 3/4 4 3/16 7 1/2 4 3/16 5 - - - - - - - -

32 13 1/16 20 11/16 14 1/4 14 1/4 4 3/16 8 1/2 5 5/8 5 1/2 - - - - - - - -

40 17 13/16 24 3/16 16 16 4 3/16 11 1/8 5 7/8 6 3/16 17 3/16 24 3/16 16 16 4 3/16 11 1/8 5 7/8 6 3/16

48 22 13/16 28 17 13/16 17 13/16 4 3/16 12 3/16 4 3/8 4 3/16 22 13/16 28 17 13/16 17 13/16 4 3/16 12 3/16 4 3/8 4 3/16

64 22 7/8 31 3/16 19 15/16 19 15/16 5 3/4 14 7/8 4 5 22 7/8 31 3/16 19 15/16 19 15/16 5 3/4 14 7/8 4 5

80 20 7/16 33 3/16 22 3/8 22 3/8 5 3/4 16 6 7/16 4 9/16 20 7/16 33 3/16 22 3/8 22 3/8 5 3/4 16 6 7/16 4 9/16

100 20 7/16 33 3/16 22 3/8 22 3/8 5 3/4 16 13 1/2 9 13 5/8 37 1/4 25 1/8 25 1/8 5 3/4 16 13/16 9 13/16 5 1/16

120 19 3/8 35 1/2 25 1/8 25 1/8 5 3/4 16 3/4 19 7/8 5 3/8 19 3/8 35 1/2 25 1/8 25 1/8 5 3/4 16 13/16 19 7/8 5 1/16

150 16 3/8 35 1/2 28 1/8 28 1/8 5 3/4 18 3/16 30 1/2 5 7/8 16 3/8 35 1/2 28 1/8 28 1/8 5 3/4 18 1/4 30 1/2 5 5/8

180 25 5/8 38 1/4 28 1/8 28 1/8 5 3/4 18 3/16 30 1/2 11 7/8 22 1/4 38 1/4 31 1/2 31 1/2 5 3/4 19 7/8 24 1/8 5 1/8

240 44 1/4 44 1/4 31 1/2 31 1/2 6 1/4 20 5/16 23 1/4 15 7/8 42 5/16 42 5/16 35 3/8 35 3/8 6 1/4 22 3/16 17 1/2 9 11/16

270 42 5/16 42 5/16 35 3/8 35 3/8 6 1/4 22 3/16 24 15/16 9 11/16 42 5/16 42 5/16 35 3/8 35 3/8 6 1/4 22 3/16 24 15/16 9 11/16

320 49 3/16 49 3/16 39 5/8 39 5/8 4 3/16 22 7/16 14 15/16 9 3/16 49 3/16 49 3/16 39 5/8 39 5/8 4 3/16 22 7/16 14 15/16 9 3/16

420 - - - - - - - - 54 3/4 54 3/4 44 1/2 44 1/2 4 3/16 24 5/8 19 13/16 -

520 - - - - - - - - 52 1/16 52 1/16 49 7/8 49 7/8 4 3/16 25 5/8 25 15/16 -

640 - - - - - - - - 64 64 56 56 4 3/16 28 5/16 17 3/16 -

Notes: 1.) If 2” panel: Add 1” at P1, P2, S1, S2, S3 (240 and above) and S4 (64 and above).Add 2” at S3 (180 and below) and S4 (48 and below).

2.) The above dimension is for motor location at P2. P1 & P2 will be interchanged for opposite hand motor location.3.) For larger motor frame size, consult factory for dimensional details.

PHYSICAL DATA

COILS

LARGE FACE AREA COILS SMALL FACE AREA COILS FOR INTERNALFACE & BYPASS

MZ HOT DECK HEATINGCOIL

Water & DX Steam Water & DX Type 5 Water

Type 5UnitSize

TH FL FT2 Nominal CFM@ 500 FPM

TH FT2

TH** FL FT2 Nominal CFM@ 500 FPM TH** FL FT2

12 11 20 2.43 1217 10 2.21 9 20 1.99 974 5 20 1.11

22 13 32 4.60 2302 12 4.25 10 32 3.54 1842 6 32 2.13

30 15 34 5.64 2822 14 5.27 12 34 4.52 2258 8 34 3.01

40 17 44 8.28 4139 16 7.79 14 44 6.82 3311 8 44 3.90

48 17 54 10.16 5080 16 9.56 14 54 8.37 4064 8 54 4.78

64 21 60 13.95 6973 20 10.63 17 60 11.29 5578 10 60 6.64

80 23 62 15.78 7891 22 15.09 18 62 12.35 6175 10 62 6.86

100 28 62 19.21 9607 27 18.53 22 62 15.10 7550 13 62 8.92

120 34 66 24.84 12420 33 24.11 26 66 19.00 9500 15 66 10.96

150 42 66 30.68 15340 40 29.22 32 66 23.38 11690 16 66 11.69

180* 42 78 36.26 18130 40 34.53 34 78 29.35 14675 18 78 15.54

240* 42 106 49.27 24637 40 46.93 34 106 39.89 19709 19 106 22.29

270* 48 106 56.31 28156 46 53.97 38 106 44.58 22525 22 106 25.81

320* 48 124 65.88 32938 46 63.13 38 124 52.15 26350 22 124 30.19

420* 52 140 80.57 40286 50 77.47 42 140 65.08 32229 24 140 37.19

480* 60 140 92.97 46484 58 89.87 48 140 74.38 37188 28 140 43.39

590* 60 170 112.89 56445 58 109.13 48 170 90.31 45156 28 170 52.68

* 2 Stacked Coils** Water Coils only.

For steam coils, subtract (1) tube.

PHYSICAL DATA

FILTERS

2” & 4” Filter Section 2” Angle Filter Section(& Combination Filter/Mix Box) Bag/Cartridge Filter Section

Unit Size

Qty. Size FT2 FPM Qty. Size FT2 FPM Qty. Size FT2 FPM

12 1 20 x 24 3.33 360 2 16 x 20 4.44 270 1 20 x 24 3.33 360

22 2 20 x 20 5.55 396 2 20 x 25 6.94 317 2 20 x 20 5.55 396

30 2 20 x 24 6.67 450 22

16 x 2016 x 25

10.00 300 2 20 x 24 6.67 450

40 2 24 x 24 8.00 500 4 16 x 25 11.11 360 2 24 x 24 8.00 500

48 12

12 x 2424 x 24

10.00 480 42

16 x 2016 x 25

14.44 332 12

12 x 2424 x 24

10.00 480

64 33

12 x 2420 x 24

16.00 400 42

20 x 2520 x 20

19.44 329 33

12 x 2420 x 24

16.00 400

80 33

12 x 2424 x 24

18.00 444 42

25 x 2525 x 20

24.30 329 33

12 x 2424 x 24

18.00 444

100 33

20 x 2424 x 24

22.00 455 63

20 x 2520 x 20

29.16 342 33

20 x 2424 x 24

22.00 455

120 6 24 x 24 24.00 500 9 20 x 25 31.25 384 6 24 x 24 24.00 500

150 63

24 x 2412 x 24

30.00 500 12 20 x 25 41.66 360 63

24 x 2412 x 24

30.00 500

180 9 24 x 24 36.00 500 88

20 x 2520 x 20

50.00 360 9 24 x 24 36.00 500

240 312

12 x 2424 x 24

54.00 444 416

16 x 2020 x 25

64.44 372 312

12 x 2424 x 24

54.00 444

270 312

12 x 2424 x 24

54.00 500 416

16 x 2525 x 25

80.56 335 312

12 x 2424 x 24

54.00 500

320 153

24 x 2412 x 24

66.00 485 424

16 x 2520 x 25

94.44 339 153

24 x 2412 x 24

66.00 485

420 618

12 x 2424 x 24

84.00 500 24 25 x 25 104.16 403 618

12 x 2424 x 24

84.00 500

480 825

20 x 2420 x 20

102.78 476 36 20 x 25 125.00 384 825

20 x 2420 x 20

102.78 476

590 2020

20 x 2020 x 24

122.22 483 1236

16 x 2020 x 25

151.67 389 2020

20 x 2020 x 24

122.22 483

Note: FPM @ Nominal Unit CFM.

CABINET MATERIALS - Location & GaugeUnitSize

ExternalCasing

Unit FrameChannels

BaseFrame

Floor DrainPan

OptionalLiner

12 20 16 14 16 18 24

22 20 16 12 16 18 24

30 20 16 12 16 18 24

40 20 16 12 16 18 24

48 20 16 12 16 18 24

64 20 14 12 16 18 24

80 20 14 12 16 18 24

100 20 12 12 16 18 24

120 20 12 10 16 18 24

150 20 12 10 16 18 24

180 20 12 10 16 18 24

240 20 12 1/4”, 2 x 4 x 2, C* 16 18 24

270 20 12 1/4”, 2 x 4 x 2, C* 16 18 24

320420

20 12 1/4”, 2 x 4 x 2, C*1/4”, 2 x 4 x 2, C*

16 18 24

480 20 12 1/4”, 2 x 4 x 2, C* 16 18 24

590 20 12 1/4”, 2 x 4 x 2, C* 16 18 24

* 1/4”, Structural Steel Channel, Standard 1” Construction Cabinet.* 1/4”, 2 1/2 X 5 X 2 1/2 Structural Steel Cannel, Optional 2” Construction Cabinet.Note: These materials apply to 1” and 2” construction with the following exceptions:

Bases for unit sizes noted with “*” will be supplied with 1/4”, 2 1/2 x 5 x 2 1/2 structural steel channel when optional 2” panel construction isrequested.

NET WEIGHTS

Model Size 12 22 30 40 48 64 80 100 120 150 180 240 270 320 420 480 590

Basic unit: FS Type

Horizontal 449 628 733 967 1022 1114 1470 1825 2039 2539 2910 3872 4140 4431 - - -

Vertical 402 626 698 940 1040 1382 1636 2129 2549 2810 3690 4435 4850 5320 - - -Single Wall

Fan Section 239 402 466 590 592 677 947 1286 1380 1853 2097 2712 2890 3068 - - -

Horizontal 466 656 767 1001 1065 1190 1582 1939 2138 2653 3026 4005 4300 4598 - - -

Vertical 404 663 737 998 1099 1453 1729 2248 2684 2969 3833 4592 5099 5610 - - -Double Wall

Fan Section 249 427 489 610 618 724 1020 1367 1450 1937 2181 2805 2990 3181 - - -

Basic Unit: AF Type

Horizontal - - - 1013 1132 1336 1622 1977 2241 2767 3159 4227 4791 5360 7163 8447 9193

Vertical - - - 989 1140 1604 1788 2281 2751 3038 3939 4797 8632 6248 - - -Single Wall

Fan Section - - - 636 692 899 1099 1438 1582 2081 2346 3848 3912 3997 5335 6330 6475

Horizontal - - - 1047 1165 1412 1734 2091 2340 2881 3295 4330 4890 5526 7665 8371 9400

Vertical - - - 1045 1199 1675 1881 2400 2886 3197 4082 4954 5700 6547 - - -Double Wall

Fan Section - - - 657 718 946 1172 1519 1652 2165 2430 3143 3632 4109 5709 6543 6621

Accessories

Diffuser Sect. 27 91 119 173 202 226 230 295 401 431 588 613 827 1015 1194 1303 1710 1865

Coil Module with Drain Pan(without Coil) Sect. 8

146 209 260 326 364 395 476 481 517 735 844 1011 1102 1194 1303 1710 1865

External Face & Bypass(without Duct) Sect. 20

71 91 93 106 119 146 187 217 233 337 350 628 683 690 820 835 912

Internal Face & BypassSect. 17

11 21 26 30 41 53 64 80 96 119 146 189 221 254 321 364 444

Preheat SectionWithout Coil Sect. 6

57 75 79 92 103 121 161 187 201 294 307 552 570 597 652 731 746

Flat and Bag Filter Section(without Filters) Sect. 10 or 13

171 224 236 277 308 333 402 441 474 587 613 827 857 895 977 1026 1119

Angle Filter Section(without Filters) Sect. 11 & 13

125 164 173 202 225 244 294 323 347 404 423 552 575 597 651 684 746

Combination Mixing & FilterSection(without Filters) Sect.16C

137 179 251 294 328 364 482 535 574 808 844 1103 1233 1393 1629 2052 2237

Mixing Box Sect. 16 91 119 173 202 225 244 294 401 431 587 613 1101 1100 1194 1303 1710 1864

Single Wall - 600 682 808 848 1021 1214 1370 1757 2160 2511 3148 3373 3599 4294 5440 6642Section 9Multizone

Double Wall - 756 860 1009 1060 1338 1542 1712 2196 2705 3139 3193 4216 4499 5.26 6746 8235

ODP “T” FRAME MOTOR & ADJUSTABLE DRIVE WEIGHTS

T - Frame 143 145 182 184 213 215 254 256 284 286 324 326 364 365

Motor HP - 1750 RPM 1 1.5 & 2 3 5 7.5 10 15 20 25 30 40 50 60 75

Motor Weight in Lbs. 30 38 56 70 127 141 187 211 263 300 409 460 560 648

Drive Weight in Lbs 25 27 30 35 45 52 66 74 85 96 108 136 265 354

NET WEIGHTS

WATER COIL OPERATING WEIGHTS (IBS) - LFARowsUnit

Size1A 2A 3A 4A 6A 8A 10A

12 32 44 56 68 95 122 149

22 42 58 76 93 131 169 208

30 52 74 99 122 173 224 276

40 69 103 139 173 248 323 398

48 76 113 154 191 275 358 442

64 96 147 202 253 366 478 590

80 110 171 237 298 431 565 698

100 130 206 286 361 525 688 852

120 147 235 327 416 605 794 983

150 173 281 395 503 734 965 1196

180 212 351 495 634 928 1582 1516

240* 266 448 636 818 1200 1222 1965

270* 298 506 721 929 1364 1799 2234

320* 368 610 863 1105 1618 2131 2644

420* 438 737 1048 1347 1978 2608 3239

480* 552 898 1262 1606 2346 3088 3828

590* 656 1064 1488 1896 2764 3632 4501

* = Total of 2 Stacked Coils.

FEATURES & OPTIONS

ACCESSORIESStandard Access Panel (Door) Sizes for “Basic Unit”*

Horizontal Units Vertical Units

UnitSize

Motor/DriveH x W

Filter AccessH x W

UnitSize

Motor/Drive(Top Section)

H x W

12 21.31 x 21.31 21.31 x 19.31 12 21.88 x 21.13

22 24.31 x 24.31 24.31 x 17.31 22 27.81 x 28.63

30 28.31 x 28.31 28.31 x 17.31 30 31.13 x 31.13

40 31.31 x 31.31 31.31 x 20.31 40 31.13 x 31.13

48 31.31 x 31.31 31.31 x 20.31 48 37.13 x 37.13

64 37.31 x 33.63 37.31 x 20.00 64 37.13 x 37.13

80 37.31 x 33.63 37.31 x 20.00 80 44.63 x 44.63

100 44.63 x 37.63 34.75 x 20.00 100 44.63 x 22.63

120 44.63 x 37.63 34.75 x 20.00 120 49.63 x 27.63

150 55.31 x 40.63 55.31 x 20.00 150 55.31 x 25.63

180 55.31 x 40.63 55.31 x 25.00 180 30.63 x 29.81

240 43.75 x 43.75 73.75 x 33.75 240 30.81 x 29.81

270 43.75 x 43.75 81.63 x 33.75 270 30.81 x 30.81

320 38.81 x 44.38 Filter Front Loading 320 N/A




* Basic unit consists of fan, coil and 2” flat filter.

DETAIL A

AHUSECTION

AHU SECTION

GASKET

SEE DETAIL A

NUTWASHER

ANGLE BRACKET

WASHER

BOLT

FEATURES & OPTIONS

SECTION ASSEMBLY

APPLICATION RECOMMENDATIONS

Application GuidelinesDunham-Bush units are available for draw-thruand blow-thru air conditioning applications in bothlow and medium pressure duties. Fan only unitsfor use as return air fans, make-up air fans, fansfor glycol ‘run-around’ systems, and many otherapplications are standard units in the Dunham-Bush line.

All models are tested and rated in accordancewith ARI Standard 430 and are ETL listed.

Manual SelectionUnit size selection with maximum face velocityestablished is determined by dividing the CFM byface velocity (FPM). This gives the minimum coilface area that can be used.

CFM specifiedFace Vel. FPM

Typical coil velocities range from 450 thru 575FPM. Lower velocities mean lower air pressuredrop thru coils and filters resulting in lower fanhorsepower.

= Face Area (Square Feet)

15°

2 DUCTDIA. MIN.


FansForward curved fans are more efficient andquieter than airfoil/backward inclined fans in thevery small sizes. Forward curved fans and airfoilfans are both offered on Sizes 12 thru 320.Medium pressure airfoil fans are standard onSizes 420 thru 590. All blowers are mediumpressure construction as standard. The choice ofone type versus the other is usually determinedby evaluating the following:(a) BHP requirement at 100% CFM(b) VAV systems, the BHP requirement at

reduced air flow(c) Sound attenuation required

(d) Overloading versus non-overloadingfan/motor characteristic

(e) Specifier preference

DuctworkCorrect ductwork design will normally mean goodair distribution at minimum fan horsepower.

Duct Design Considerations1.) Return air ducts must be adequately sized for

minimum resistance.2.) Units are all single fan design thus the

expense of fabricating ”pants” will not benecessary.

3.) Duct turns too close to the fan discharge mustavoided.(Two duct diameters before elbow isrecommended). Figure 1.

FIGURE 1

4.) Turning vanes will usually reduce thepressure loss through an elbow when uniformflow entering the elbow exists.

5.) The transition from the fan outlet to thescheduled duct size should be held to a 15°maximum slope. Figure 2.

FIGURE 2

Variable Inlet VanesVariable inlet vanes for use with either forwardcurved or airfoil fans for CFM modulation ofvariable volume systems are available (Sizes 30thru 320 for forward curved and 48 to 590 forairfoil). These inlet vanes modulate in response toa static pressure sensor (by others) thru a dampermotor which changes the blade position. The inletvanes on both sides of the double inlet fans areinterconnected so that only one damper motor isrequired. The selection of the airfoil or forwardcurved fan is usually determined by a comparisonof energy usage, but other considerations such asthe non-overloading characteristic of the airfoil fanmay influence selection.

Inlet vanes are not designed for operation downto shut-off and energy savings with operationbelow 40% of wide open volume start to showdiminishing savings.

Outlet DampersThe best air performance will usually be achievedby installing the damper with the bladesperpendicular to the fan shaft. See Figure 3.

Published pressure losses for control dampersare based upon uniform approach velocityprofiles. When a damper is installed close to theoutlet of a fan, the approach velocity profile is notuniform and much higher pressure losses throughthe damper can result. Multiply table pressure by3 to correct for non-uniform velocity entering thedamper.

DAMPER BLADESPERPENDICULARTO FAN SHAFT

A

B

1" PIPE DRAINCONNECTION


It is recommended that outlet dampers beinstalled 2« duct diameters downstream from thefan to assure uniform velocity across the damper.Discharge dampers should not be used as shut-off dampers as some fans will produce enoughpressure to cause the ductwork to separate at theseams.

FIGURE 3

GeneralOther volume control methods such as use ofvariable speed drives, Eddy current motors andadjustable frequency drive devices are generallycompatible with Dunham-Bush air handlers. Withthe wide cost difference between these devices,their use is usually based on long-range energysavings.

Motor HeatIn calculating the total heat load for a building, thefan motor heat must be considered. With themotor in the air stream, the BTU's added to the airstream is calculated from the following formula,with motor efficiency expressed as a decimal.

B.H.P. x 2545Motor Eff.

When the motor is outside the air stream, themotor heat is still added to the system load. TheBTU load added to the system is calculated by:

Motor BTUH = B.H.P. x 2545

For additional information, see ASHRAE Guide,Handbook of Fundamentals, Chapter AirConditioning Cooling Load.

Condensate Drain TrapsThe condensate drain trap piping must beproperly designed to insure the removal ofcondensate. Incorrect trapping can hold water in

pan causing overflow. On blow thru units,particularly, system air can escape down the drainwith incorrect trapping.

FIGURE 4

a.) On draw-thru units (A) shall be equal to orgreater than the coil sections negativepressure at operating conditions.

b.) On blow-thru units (A) can be as small as 1"but (B) must equal or exceed the total staticpressure in the coil section.

Water Coils Exposed to FreezingTemperaturesWater coils exposed to freezing temperaturesmust be protected from freeze-up by either addingan anti-freeze solution to the coils or by properdraining of the coils. Dunham-Bush coils arecircuited so that there are no trapped circuits.However, because of the serpentine nature of thecircuiting, it is almost impossible to adequatelydrain the coils by gravity alone. Particularly onlonger coils, even a fraction of a degree deviationfrom a horizontal plane can lead to water beingtrapped within the serpentine. Water that hasfailed to drain from a single tube, or even part of atube, can cause the tube to rupture upon freezing.

Draining Coils Using Supplemental AirBlowerIdeally, a blower capable of delivering 150 CFM ofair at approximately 40-50 inches of water ormore should be used. Some small aircompressors, while delivering higher pressures,probably will not deliver sufficient volume of airand this is equally as important.

Motor BTUH =

OUT

DRAIN

VENT

AIRFLOW

CIRCULATING

GLYCOLSOLUTION

IN

PUMP

OPEN DURINGDRAIN

BLOWER

VENT

AIRFLOW

AIRFLOW

BLOWER

OPEN DURING

DRAIN

VENT

HORIZONTALAIR FLOW

VERTICALAIR FLOW

BLOWING OPERATION


1. Drain the coil by gravity after opening thesupply return, vent and drain connections.

2. Connect the blower to the large connectionthat is at the greatest elevation. The small ventor drain connection on the header to which theblower is connected should be closed. Refer toFigure 5 for typical hook-up during the blow-out operation.It is helpful to tap the coil casing along thelength of the coil during the draining process.The blower should be operated until nomoisture can be detected leaving the coil.Then, shut the blower off and permit the coil tostand for a few minutes. This will permit themoisture that has adhered to the walls toaccumulate. Then the blowing out operationshould be repeated. Ideally, the coil should bepermitted to stand twenty-four (24) hours andthen blown out again.

3. Leave all connections open until coil is put intooperation.

FIGURE 5: BLOWER SUPPLEMENTEDCOIL DRAINING

Installation of Anti-Freeze SolutionA second way to prevent a coil freeze-up is to addan anti-freeze to coil such as industrially inhibitedglycol. The coil should be valved off so that onlythe coil would have anti-freeze added to it. Themost positive way to assure the mixing of the anti-freeze is to make a runaround loop with acirculating pump.

1. Open all connections and drain the coil asthoroughly as possible.

2. The anti-freeze solution should be added tothe coil and circulated through the coil until thesolution is thoroughly mixed and all air ispurged from the coil. The air vent should beopened during the filling operation and slightlyopen during the pumping operation toaccomplish this. When the solution hascirculated for 15-20 minutes, the concentrationof the solution should be checked with asuitable hydrometer. If the concentration islow, add more glycol and operate the pumpagain. A typical piping diagram is shown inFigure 6.

FIGURE 6: TYPICAL PIPING DIAGRAMFOR ADDING ANTI-FREEZESOLUTION

3. The anti-freeze solution may then be left in thecoils or drained and used to flush another coil.The concentration must be checked for eachcoil flushed.The adding of anti-freeze to a system exposedto freezing conditions may be necessary if thesystem must be operational at a moment'snotice. This affects the chiller and coilperformance and must be taken intoconsideration when selecting components.

NOTE: Most anti-freeze solutions will be furnishedwith a chart for concentration at freezing point. Itis also important to be certain that the anti-freezesolution used is not corrosive to the tubing. If thisinformation is not available, consult Dunham-Bush.


Steam Coil Application Instructions

The following instructions are for all Dunham-Bush steam coils. Disregard thoseinstructions that do not apply to yourparticular coil.

1. Pipe coils in accordance with acceptedindustry standards and local codes.

2. For horizontal air flow install casing leve. Thetubes in DB steam coils are properly pitchedin the coil casing for condensate drainage.

3. For vertical air flow install coil with tubespitched to return connection a minimum of1/8" per foot of tube length.

4. Support all piping independent of coil.5. Provide adequate swing joints in all piping to

coil to absorb expansion and contractionstrains.

6. Run return piping the size of returnconnection from coil to dirt pocket (bushingsnot recommended on return connections).

7. Install drip trap in steam mains ahead of coils(do not drip steam mains through coil).

8. When two or more coils are installed in aseries (different condensate rate) provideseparate traps for each coil.

9. When two or more identical coils are installedparallel, a separate trap on each coil isrecommended.

10. Each coil or group of coils that areindependently controlled must also beindividually trapped.

11. Size steam traps with ample capacity usingactual heating load and service factorrecommended by trap manufacturer.

12. Select control valves in accordance with therecommendations of the control manufacturerusing actual heating load.

13. Install suitable strainers ahead of allautomatic valves and traps to catch dirt andscale.

14. Provide adequate thermostatic air vents toexpel air and other non-condensables.

15. Control valves used for Type NFS and NFOcoil must be gradual acting modulating typewith Veeport.

16. Where a control valve is used for Type "S"coils when the entering air temperature isbelow 35øF, use a two position type valve.Locate control element in the entering airstream so that the valve will remain open with

a minimum of five pounds steam when theentering air temperature is below 35øF.

17. Equip fresh air intake openings with tightfitting dampers which will remain closed whenthe steam pressure is below five pounds.

18. When the system is started up the dampersshould remain closed for approximately tenminutes after the steam valve is open.

19. Properly locate all temperature sensingelements at a point of true average air mixturetemperatures.

20. Damper control is recommended in systemswhere the pressure is maintained in the returnlines. Do not use an automatic control valve.

Figure 7: Typical Steam Coil PipingDiagram

High Pressure System

Low Pressure Open Gravity ReturnSystem

16

20

16 20

20

20

16

20 25

16

25 25

16

20 20 2525

20

25 20

25

25 25 20

20

20 25 25

20

25 25 25

20

25 25 25

20

25 25 20 20

20

25 25 25 25 16

25

25 25 25 25 16

25

20 20 20 20 20 20 16 25

25

25 25 2525 25

20

25 25 25 25 25 25

20

25 25 25 25 25 25 16 16

FILTER ARRANGEMENTS

ANGLE FILTER

Size 12(2) 16 x 20

Size 22(2) 20 x 25

Size 30(2) 16 x 20, (2) 16 x 25

Size 40(4) 16 x 25

Size 48(4) 16 x 20, (2) 16 x 25

Size 64(4) 20 x 25, (2) 20 x 20

Size 80(4) 25 x 25, (2) 20 x 25

Size 100(6) 20 x 25, (3) 20 x 20

Size 120(9) 20 x 25

Size 150(12) 20 x 25

Size 180(8) 20 x 25, (8) 20 x 20

Size 240(16) 20 x 25, (4) 16 x 20

Size 270(16) 25 x 25, (4) 16 x 25

Size 320(24) 20 x 25, (4) 16 x 25

Size 420(24) 25 x 25

Size 480(36) 20 x 25

Size 590(36) 20 x 25, (12) 16 x 25

24

20

20

20

20

24

20 20

24

20 20

24 24 24

24

24 1224 2424

20

12

24

24 24

12

24

24

20

24 24 242424

24

24

24

24

24

24 24 12

24

24

24

24

24 24 24 24

24

24

24

24 24 24 12

24

24

24

24 24 24 24 12

24

24

24

24 24 24 24 1224

24

24

24

24

2424 24 24 24

12

20

20

20

20

24 2024 20 20 20 20

20

20

20

20

24 24 20 20 20 202424

FILTER ARRANGEMENTS

FLAT FILTER (2” OR 4”), BAG / CARTRIDGE FILTER

Size 12(1) 20 x 24

Size 22(2) 20 x 20

Size 30(2) 20 x 24

Size 40(2) 20 x 24

Size 48(2) 24 x 24, (1) 12 x 24

Size 64(3) 12 x 24, (3) 20 x 24

Size 80(4) 12 x 24, (2) 24 x 24

Size 100(3) 24 x 24, (3) 20 x 24

Size 120(6) 24 x 24

Size 150(6) 24 x 24, (3) 12 x 24

Size 180(9) 24 x 24

Size 240(12) 24 x 24, (3) 12 x 24

Size 270(12) 24 x 24, (3) 12 x 24

Size 320(15) 24 x 24, (3) 24 x 12

Size 420(18) 24 x 24, (6) 12 x 24

Size 480 (520)(10) 20 x 24, (25) 20 x 20

Size 590(20) 20 x 24, (20) 20 x 20

CENTRAL STATION AIR HANDLERS - Dunham-Bush · PDF fileCENTRAL STATION AIR HANDLERS ... AHS =...

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