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Catalog 570
Skyline™ Outdoor Air HandlerSizes 003 thru 055
See page 1
MEA342-99E
Nomenclature
ARI CertificationStandard & cus tom s ize un i tscert i f ied in accordance with thecentral station air handling unitscertification program, which is basedon ARI Standard 430. Note: Ratingsat other than wide open position ofthe inlet vanes are outside the scopeof ARI Standard 430.
Certif ied in accordance with theforced circulation air cooling and airheating coils certification program,which is based on ARI Standard 410.
Agency Listed
ContentsNomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1The Skyline™ advantage at a glance . . . . . . . . . . .2Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Skyline’s unique standard features . . . . . . . . . . . .6Skyline’s customized options . . . . . . . . . . . . . . . . .8Component types . . . . . . . . . . . . . . . . . . . . . . . . . .10
Air handler selection . . . . . . . . . . . . . . . . . . . . . . 14Quick select table . . . . . . . . . . . . . . . . . . . . . . . . . 16Application considerations . . . . . . . . . . . . . . . . . 18Engineering and physical data . . . . . . . . . . . . . . 22Dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . 38Engineering guide specification . . . . . . . . . . . . . 65
"Skyline" and "SelectTOOLS" are trademarks of McQuay International. All rights reserved.© 2003 McQuay International. All rights reserved throughout the world.
Bulletin illustrations cover the general appearance of McQuay International products at the time of publication. We reserve the right to change design and construction specifications at any time without notice.
The Skyline air handler frame channel design is covered under patent number 5,713,651.
OAH 003 F D A C
ModelOAH = Outdoor air handlerOAC = Outdoor component
Nominal Unit Size (nominal square foot of coil)
003, 004, 006, 008, 010, 012, 014, 017, 021, 025, 030, 035, 045, 055
Vintage of McQuay Air Handling Unit
Unit Cross SectionC = Standard unit cross sectionM = Custom size cross section
Motor LocationA = Motor along side of fan housingD = Motor downstream of belt drive plenum fanF = Motor on inline fanG = Motor downstream of direct drive plenum fanT = Motor behind twin housed fans
Unit Type/Coil PositionB = Blow-thru cooling coil locationD = Draw-thru cooling coil locationH = Heating onlyV = Vent only
All standard unitsAll custom size unitsAll Canadian units
MEA342-99-E
Document Number: Cat 570
Cat 570 1
The Skyline™ advantage at a glance
FlexibilitySkyline's Unique Design What It Does For YouCustom-modular platform Allows "customizing" of the system with a wide selection of compo-
nents and sizes.
Variable DimensioningTM design Allows cabinet to be sized in two-inch increments (height and width) to meet installation or aesthetic requirements.
Multiple coil face areas per model size Allows you to closely match performance and capacity requirements.
Multiple customized component options for fans, coils, filters and cabinet construction
Allows optimum selections for cost, energy efficiency, performance, indoor air quality, and low noise.
Optional factory supplied roof curb with separate pipe chase in variable heights (16", 20", 24" or 30")
Designed specifically for your unit and your height requirements.
Indoor air qualitySkyline's Unique Design What It Does For YouDouble sloped microbial-resistant coated galvanized (standard) or stainless steel drain pan
Inhibits bacterial growth; eliminates standing water that can support bacteria.
Double-wall construction Smooth interior surfaces reduce potential for accumulating dirt and microbial growth. Allows for easy cleaning. Prevents dirt and mois-ture from penetrating fiberglass insulation and prevents fibers from eroding into the air stream.
Multiple filter types (flat, angular, bag and cartridge) with side-load and front-load capabilities
Gives full range of filter efficiencies, final filter arrangements, and fil-ter section depth flexibility.
Hinged access doors with full-grip handles or easy-to-remove access panels
Allows for easy inspection and cleaning of drain pans; promotes regular inspections.
Patented gasketed frame channels Minimizes direct exposure of metal to metal in cabinet framework to reduce cold bridging and condensate collection; lowers operating costs.
Patented splice collar Prevents unfiltered, unconditioned air from entering the system. Allows for leak-resistant section to section joining in the field when required.
Operating efficiencySkyline's Unique Design What It Does For YouLow air-leakage cabinet design Increases operating efficiency; reduces energy loss and operating
costs.
Fan selection options (housed forward curve or air-foil, belt drive or direct drive plenum, inline and twin fans)
Results in lowest possible BHP requirements.
Patented UltraSealTM low-leak dampers Maximizes operating efficiency; reduces operating cost.
2 Cat 570
Easy, low cost installationSkyline's Unique Design What It Does For YouShips assembled or in sections (if required) with optional heavy duty base rail and lifting lugs on all four corners
Facilitates easy rigging and installation.
Patented section splicing (if required) Saves installation time; creates an airtight environment.
Optional factory supplied roof curb with separate pipe chase in variable heights (16", 20", 24" or 30")
Designed to match custom modular flexibility of your unit and your height requirements.
Variable depth piping vestibules Allows you to select vestibule depth to match piping requirements.
Coil connections extend through cabinet with gasketed airseal, external drains and vents
Allows easy connection in piping vestibule to save time and cost; pre-serves air-tight environment.
Fan system factory tested and balanced Saves time during installation and promotes proper operation.
Easy maintenance and serviceabilitySkyline's Unique Design What It Does For YouHinged access doors with full grip handles or easy-to-remove access panels in a wide range of section depths
Makes it fast and easy to clean and inspect drain pan, clean or remove coil, clean interior.
Extended fan bearing lube lines Makes lubricating fan system easier.
Extended coil drain connections Reduces coil maintenance time.
Durable, weathertight cabinet for long lifeSkyline's Unique Design What It Does For YouCross-broken roofcap and "C" cap over seam joints
Eliminates standing water and provides a weathertight seal.
Drip shield on all sides and over doors Directs water away from cabinet.
Pre-painted cabinetry (galvanized optional) Resists corrosion for long life.
Intake and exhaust hoods Direct rain or snow away from required openings.
16- or 18-gauge outer panels and 1-1/2 lb. or 3 lb. insulation
Promotes long life and high thermal efficiency.
20-gauge galvanized or stainless steel liners Helps extend insulation life and allows easy cleaning.
Cat 570 3
4 Cat 570
IntroductionQualityMcQuay air handling equipment has been respectedand regarded as a high quality product for nearly 60years. The key to providing such a high quality productis in the basic design of our patented construction. Inaddition to providing unequaled thermal efficienciesand low leak rates (capable of less than 0.5 CFM/ft2 ofcabinetry at 5.0" positive w.c.), it offers tremendousflexibility in sizing and component options to meet yourindoor air quality, operating efficiency, sound andinstallation requirements.
In addition to our patented construction, McQuaySkyline™ outdoor air handlers feature a durable,weathertight cabinet that promotes long life of your airhandler. Units ship completely assembled or bysection (if necessary) with a curb-ready base rail andheavy-duty lifting lugs on all four corners to facilitateeasy rigging and installation. An optional factory-supplied roof curb, specifically designed for your unit, isavailable in variable heights (from 16" to 30") to furthersimplify installation.
FlexibilityBy virtue of its unique frame design, the McQuaySkyline™ outdoor air handler offers tremendousflexibility. This flexibility is reflected in our uniqueVariable Dimensioning™ feature that allows units to besized in two-inch increments (height and width) to meetyour requirements. Numerous section and componentoptions, and the ability to arrange components inwhatever arrangement is required, allow Skyline airhandlers to be customized to the requirements of eachjob, without expensive modifications in the field.
Cabinet ConstructionMcQuay Skyline air handler cabinetry consists of abox-type frame channel, easy-to-remove panels orhinged access doors, and a standard base rail or anoptional integral curb-ready base with heavy-duty liftinglugs. Channel material is painted G60 galvanized steel(optional G90 unpainted galvanized steel) withneoprene gasketing on all flanges to minimize leakage.Gasketing is also on all contact surfaces betweeninterior and exterior metal components to minimizethermal bridging.
Panels are constructed of 16- or 18-gauge pre-paintedsteel and are secured to the unit with fasteners that canbe easily removed to access the unit interior. Optionaldoors with full grip handles are also available.
Patented gasketed frame channel
This unique cabinet design results in air tight, thermallyefficient units, which translates into energy savingsover the life of the unit. Fiberglass insulation is 2-inches thick and is 1½ or 3-pound per cubic foot indensity. The thickness of the insulation is nevercompromised for maximum thermal efficiency. A fullthickness of uncompressed insulation is providedthroughout the unit - including underneath the drainpan. All units are double wall construction with solidgalvanized or stainless steel liners.
A standard base rail or a heavy-duty curb-ready baserail with integral lifting lugs on all four corners facilitateseasy rigging for installation. If it is necessary to ship aunit in multiple sections, each section is equipped witha base rail and lifting lugs. A patented splice joint helpsguide sections together for a tight fit, saving additionaltime and money on installation. Splice joints are alsofully insulated at the factory.
Curb-ready base rail and lifting lugs
Skyline air handlers are equipped with several featuresto provide durability against harsh outdoor conditions.Cross-broken roofcaps eliminate standing water on theunit and a "C" cap over seam joints provides awatertight seal. The roof cap extends over optionalpiping vestibules without any seams. Drip shield on allsides and over doors, as well as intake and exhausthoods with screens, direct water away from the unitand required openings. An insulated, double-walledpiping vestibule encloses all piping and control valveswithin the unit cabinet and can be selected in varyingdepths to meet your piping requirements.
Integral piping vestibule
Access and ServiceabilityEquipment must be designed to perform efficiently andwithstand the wear and tear of everyday use. It mustalso be designed to provide easy access to interiorcomponents for routine maintenance and service tomaintain peak performance. The patented framechannels and easy-to-remove panels or hinged accessdoors of the Skyline outdoor air handler cabinet providecomplete access to the unit interior and components.
Hinged access doors
SelectTOOLS™ Software Selection ProgramBecause the Skyline air handler is so flexible and hasso many different component types, there are virtuallyan infinite number of unit arrangements possible. Tohelp the customer easi ly def ine thei r productrequirements, McQuay provides a user friendlyselection program, called the SelectTOOLS™ SoftwareSelection Program. This program configures and sizesboth standard and custom units. Components can beselected in minutes. This Windows® based programwill lead the user through the selection process byprompting for pertinent input data for all componentsrequired. Component sections are selected by placingthem on a configuration screen. Once the unit layout isdefined, the options and accessories are identified.The program gives immediate feedback regarding fanand coil selection, offering a choice of many differentoptions based on the performance inputs. Once finalcomponent selections have been made, the programwill provide all output needed for specification andsubmit ta l purposes, including fan curves, coi lpe r fo rmance psychomet r i c char ts , we igh ts ,dimensional drawings, and a unit specification. TheSelectTOOLS Software is a comprehensive, efficientand user friendly selection program.
Cat 570 5
Skyline’s unique standard features
Durable, Weathertight Cabinet • Cross-broken roofcaps eliminate standing
water.• Standing "C" cap over seam joints provides a
watertight seal.• Drip shield on all sides and over doors.• Pre-painted cabinetry (galvanized optional).• 20-gauge galvanized or stainless steel liners.• 16- or 18-gauge outer panels and 1½ or 3
pound density insulation.
Factory Supplied Roof Curb (Optional)• Designed specifically to match custom
modular flexibility of your unit.• Variable heights of 16", 20", 24", or 30" to
meet your requirements.
Custom Modular Design• Allows custom selection and con-
figuration of components to meet performance requirements.
Double-wall Construction• Reduces dirt accumulation.• Facilitates cleaning.• Protects insulation.• Improves IAQ.
Gasketed Frame Channel Construction
• Eliminates metal-to-metal contact between paneling and framework.
• Minimizes condensate and corrosion.
• Promotes long life.
Damper Hoods (Optional) With Screens
• Direct rain, snow and debris away from required openings.
Piping Vestibule (Optional)• Encloses piping connections
within unit cabinet. • Variable depths to meet your
piping requirements (18”, 24”, 30”).
Extended Coil and Drain Connections• Saves installation costs.• Reduces maintenance time.• Aids proper drainage.
Patented Ultraseal™ Low-leak Dampers• Maximize operating efficiency.• Reduce operating costs.
Visible Double-sloped Drain Pan• Microbial-resistant galvanized or
optional stainless steel drain pan to inhibit bacteria growth.
• Makes inspection and cleaning easier.• Improves IAQ.
Heavy Duty Base Rail • Curb-ready design forms a
watertight seal on roof curb assembly (as shown) or standard base rail (4” to 12”).
• Lifting lugs on all four corners of each shipping section to facilitate easy rigging.
6 Cat 570 Cat 570 7
Skyline’s customized optionsUse McQuay Skyline as a product platform on which to build the ideal outdoor air handler for your specific application. Customized options include:
• Variable Dimensioning™ design for cabinet sizing on 2” increments (height and width)
• Multiple coil face areas per unit size
• Multiple section depths
• Curb-ready base
• Variable height roof curbs (16", 20", 24" or 30") with sep-arate pipe chase
• Variable depth piping vestibules (18”, 24”, 30”)
• Various casing and drain pan materials
• Mixing boxes/economizers
• Sound attenuators
• Multiple fan selections including forward curve, airfoil, inline, belt or direct drive plenum fans, and twin fans (two forward curved fans on one shaft)
• Filters (flat, angular, bag and cartridge) available in side load or front-loading configuration
• Marine lights and receptacles
• Hinged access doors with full grip handles
• Manual selections to accommodate special components
Blender / Air Mixer Options
Fan Options
Multiple Filter Options
Sound Attenuators
8 Cat 570
PLENUM FAN
FC, AF FAN& TWIN FAN INLET PLENUM
2" & 4"FLAT INTEGRAL 1 & 2 ROW
STEAMAND
1 - 4 ROWWATER
MEDIUMCLG.
10 ROW PLENUM FAN BAG
DISCHARGE PLENUMCARTRIDGEHORIZ
FC, AF FAN,& TWIN FAN
CLG. / HTG.COMBINATIONLARGE
HORIZHEATINGINTERNAL
2" & 4"ANGULAR
ESI FANMIXBOX WITH
4" FILTER
CARTRIDGE SMALL 4 ROW ESI FAN
SFA COILMFA COILF & BPRIGHT
ANGLEBAG
MIXBOX WITHANG FILTER
MIXBOX WITH2" FILTER
MIXING BOX
RETURN /
EXHAUST
ECONOMIZER
BLENDER
FILTER
F & BP DAMPER
COILACCESS
HORIZONTAL
COIL SUPPLY
FAN
DIFFUSER
COIL
BLOW THRU
ACCESS
FILTER
ATTENUATOR
PLENUM
CLG. OR
HTG.
9"MIN
EXTERNAL
Marine Lights and ReceptaclesVariable Height Roof Curb
Cat 570 9
Component typesFansFan types available with the McQuay Skyline outdoorair handling units are housed double width, double inlet(DWDI) forward curved and airfoil fans, plenum fans,inline fans, and twin fans. Forward curved fansgenerally provide the lowest first cost option and areused for lower static pressure applications. McQuayhoused forward curved fans will typically operate up to6.0" of static pressure. Airfoil fans have a higher firstcost, but are more efficient, quieter and can handlehigher static pressures. McQuay housed airfoil fans willoperate up to 9.0" of static pressure.
Plenum fans save space by eliminating turns inductwork. They also provide a high degree of flexibilitywhen locating the outlet ductwork. Plenum fans arealso very good for blow through applications as theygenerate a uniform outlet velocity profile. Both beltdrive and direct drive plenum fans are available.
Inline fans are quieter and more efficient than moststandard fans. Inline fans are most beneficial in VAVapplications.
Twin fans (two housed forward curved fans mountedon one common shaft) are excellent for applicationsthat require low profile units.
Plenum fan
The different types of fans are available in numerouswheel diameters per unit size. The fan size selection isalways optimized and identified by the SelectTOOLSSoftware. The program offers a number of fan sizes toselect from and considers performance, efficiency,sound generation and first cost. Fan and motorassemblies can be provided with 2" spring, rubber inshear, or rigid mount allowing the customer the optionof isolating the fan and motor assembly internally orisolating the entire unit. All fans are dynamicallybalanced at the plant as an assembly, including themotors and drives.
All fans rotate on a solid steel shaft of uniform diameterthat has been ground, polished, and coated with a rustinhibitor. Fan shafts are selected to have a maximumoperating speed well below the first critical speed.
Belt guards are available on plenum fans and inlinefans. Seismic restraint is also available for applicationsrequiring additional fan support.
The fan bearings provided will have a minimum L50 lifeof 200,000 hours, and are available as high as1,000,000 hours. Bearings are selected for minimumnoise levels and minimal service. Bearings are selfal igning and pre-lubricated for immediate use.Bearings are mounted on rigid frames and positionedto provide proper balance. All bearings include copperlubrication lines that are extended to the access side ofthe fan cabinet with the grease fittings located near theaccess door opening.
All fan motors are internally mounted. The appropriatemotor size will be selected by the SelectTOOLSSoftware. Motors cannot be undersized, but they maybe oversized if desired. Motor options include open dripproof, totally enclosed fan cooled, 1 speed/1 winding, 2speed/1 winding, and 2 speed/2 winding. Motorefficiencies available include standard efficiency, highefficiency, and premium efficiency, depending on themotor type.
Spring isolation
10 Cat 570
CoilsThe McQuay Skyline outdoor air handler offers broadapplication flexibility in coil sections and coils. Coils canbe arranged in draw through or b low throughconfigurations. Heating only, cooling only, or coolingand heating sections are available. All coils areinstalled with space between each coil to allow accessfor cleaning and mounting of controls.
Cooling coil sections, and cooling and heating coilsections, are available in seven different sectionleng ths to accommodate every app l i ca t i onrequirement. Drain pans extend the full length of thesection. Removable access panels or doors may beprovided in the deeper sections that will not interferewith piping connections extending through the unit sidepanels or piping vestibules.
All cooling coils are mounted over a double slopeddrain pan. The cooling coil rests on coil supportslocated over the drain pan. The drain pan extendsbeyond the leaving side of the coil to help recovercondensate. The primary drain pan also extends underthe coil headers and return bends to help removecondensate from the unit. A full thickness of insulationis always provided between the drain pan and thebottom outer panel. The drain pan is sloped in twoplanes to promote proper condensate removal. Thegalvanized drain pan is coated with an antimicrobialtreatment as standard to help inhibit the growth ofalgae and fungi. A stainless steel drain pan is alsoavailable as an option.
Coil connections always extend through the unitcabinetry, allowing for the easy connection of valvesand piping. All valves and piping can be enclosedwithin a piping vestibule that is available in varyingdepths to meet piping requirements. Water coil ventsand drains are located outside the cabinetry.
A range of different size face area coils is available,including small, medium, large and staggered.Generally small face area coils are used for heatingapplications with bypass and medium and large facearea coils are used for cooling applications withbypass.
McQuay Skyline outdoor air handler coils can beselected from a full range of coil options. With McQuaybeing a major manufacturer of heat transfer coils, thecoil options are virtually unlimited. The McQuaycontractor coil line has several coil types, ranging fromhot and cold water, evaporator and steam. StandardMcQuay coils are ARI certified. In addition to a broadrange of circuitings, fin spacing and row depths, coilscan be constructed of different material types for fins,tubes, connections, and casings. This provides theability to specify a coil to meet application needs.
For more information on McQuay coils, consult thefollowing catalogs:
Cooling — Water/Evaporator ............Catalog 411
Heating — Water/Booster ................ Catalog 412
Steam — Standard/Distributing ........ Catalog 413
Coil connections, vents, and drains, along with drain pan connection, extend through unit cabinetry
FiltersMaintaining good indoor air quality is of utmostimportance and a key ingredient is air filtration. Toprovide a wide range of filtration options, McQuay hasenlisted the help of AAF International, a worldwidesupplier of complete air filtration products. Theirexpertise has helped provide excellent filtrationcomponents for McQuay equipment.
McQuay Skyline outdoor air handlers have beendesigned to house flat, angular, bag, or cartridge filters.These media types range in efficiencies up to 95% andMERV 15. (See page 12 for a description of the MERVRating.) In addi t ion to offer ing a fu l l range ofefficiencies, the filter media can be provided with anoptional antimicrobial treatment. Antimicrobialtreatments are highly recommended for a completefiltration system.
An optional filter pressure gauge may be ordered witheach filter section to help promote regular servicingand prevent clogging.
Both bag and cartridge filters have a pre-filter and canbe either side load or front load. An access door isprovided on either or both sides of the unit to accessthe filter section. Filters can be positioned any place inthe unit, and as many filter sections as required can beused. Many health and food industries require stringentfiltration and often there is a need for a filter section tobe the last component in the air stream. The McQuaySkyline outdoor air handler meets these needs byproviding a filter section located as the last componentin the air stream, and with full sheet metal liners.
Cat 570 11
Standard filter types available with the Skyline outdoor air handler:5700 - 2" depth. Flat panel filter designed for heavydust loading conditions.
PerfectPleat - MERV 6 (30% efficiency), 2" or 4"depth. Made from pleated, self supporting DuraFlex™by AAF.
AmAir 62plus - MERV 8 (70% efficiency), 2" or 4"depth. Standard AAF AmAir pleated filter with twolayers of added polypropylene laminate to increaseefficiency.
VariCel II MH - 95%, 85% and 65% efficiency, 4"depth, 1" track requirement. Mini pleat filters withmetal cell sides and headers that provide superiormoisture resistance.
VariCel SH - 95%, 85% and 65% efficiency, 12" depth,1" track requirement. Steel interlocked header and cellsides hold the corrugated aluminum separated pleatsallowing optimum airflow. Rated UL Class 1.
VariCel V - 95%, 85% and 65% efficiency, 12" depth,1" track requirement. Mini pleats held in a V-bankconfiguration providing greater airflow capacity andlonger service.
DriPak2000 bag - MERV 15, 14 and 11, (95%, 85%and 65% efficiency), 36", 30" and 22" depths, 1" trackrequirement. Extended surface pockets made fromhigh-loft, layered synthetic media. Rated UL Class 1MERV 8 efficiency DriPak2000 filters also available in19", 15" and 12" depths.
Visit AAF's web site at www.americanairfilter.com formore technical filter information.
*What is the MERV Rating?Minimum Eff ic iency Report ing Value (MERV) -ASHRAE Standard 52.2-1999 entitled "Method ofTesting General Ventilation Air-Cleaning Devices forRemoval by Particle Size" provides a methodology fordetermining filter efficiency at removing various sizes ofparticles as the filters become loaded. There are threeranges of particle sizes that define the MERValue:
Range 1 — 0.3 - 1.0 µm particle size.
Range 2 — 1.0 - 3.0 µm particle size.
Range 3 — 3.0 - 10.0 µm particle size.
The Table below shows a comparison of the MERVrating to the average arrestance percentage by theolder ASHRAE Std. 52.1 method:
AccessThe access section can be selected to meet specificapplication criteria. Access sections are available to beplaced anywhere in a unit in a variety of depths.Sections are available in depths of 16", 24", 30", 36",42", 48", and 54". Typically access sections are usedfor field-installed components, air monitoring devices,or to provide ample space between components.
Mixing boxes and economizersWhen outside and return air mixing is required, eithera mixing box or an economizer section can beselected. Either component will regulate the amountof outside and return air supplied to the conditionedspace. The mixing box or economizer can make useof free cooling by opening outside air dampers whenthe ambient air will help to condition the supply airstream. Additionally, dampers may be individuallysized to provide better mixing.
Both the mixing box and economizer are provided withthe McQuay UltraSeal™ low leak damper. This damperhas one of the lowest leakage rates in the industry,maximizing energy efficiency. At 4.0" static pressure anda face velocity of 1100 fpm through the dampers, theleakage rate is less than 0.2% (it is common to specifyleakage rates at higher static pressures, but dampersshould not exceed 2" of static pressure). The parallelairfoil blades are hollow core and fully gasketed.Continuous vinyl seals are provided between thedamper blades. Stainless steel end seals and linkagebuilt into high strength ABS plastic endcaps providesmooth, quiet operation. Mixing boxes or economizersused on McQuay Skyline outdoor air handlers caninclude optional factory-installed rain hoods.
Std. 52.2(MERV)Approx. Std 52.1 Particle Size
RangeDust Spot Eff. Arrestance15 >95% n/a 1
14 90-95% >98% 1
11 60-65% >95% 2
8 30-35% >90% 3
6 <20% 85-90% 3
12 Cat 570
Internal face and bypass dampers
Blenders/Air MixersStratification occurs from the mixing box when theairflow of two different temperature air streams do notmix completely. This incomplete mixing can continuethrough the air handler, and subject an unprotected coil(no glycol) to damaging freezing temperatures. With theincreased minimum outdoor air requirements identifiedby ASHRAE Standard 62, the l ikel ihood for airstratification increases. An air handler must be able tohandle the required amount of outdoor air, regardless oftemperature, without risking damage to the coil.
Blenders/air mixers help to provide protection for coilsagainst freeze-up due to stratification. Blenders/airmixers add additional turbulence to the passing airstreams, boosting the air velocity for improved mixing.Proper distance is provided immediately downstreamto give the air streams enough time to fully mix beforereaching the next air handler component. Becauseblenders/air mixers are static devices, they require nomaintenance. Different blender/air mixer lengths canbe selected to satisfy either the acoustic, space,pressure drop, or initial cost requirements. TheSelectTOOLS Software can help select the appropriateblender/air mixer for the application.
Blender
AttenuatorsBui lding occupants have become increasinglyconscious of the quality of their environments, and lowsound levels are a key criteria. Studies have confirmedimproved productivity when workers are performing insound-controlled environments. Consequently, buildingowners, engineers, and architects have become awareof the economic benefits associated with quietenvironments.
McQuay Skyline outdoor air handlers have beendesigned to provide the quietest sound levels possible.Factory-installed attenuators are available for thedischarge or return sections of the air handling unit tomeet the mos t s t r ingen t sound a t tenua t ionrequirements. Different attenuator lengths can beselected to satisfy either the acoustic, space, pressuredrop, or initial cost requirements. Quality constructionand an aerodynamic design give reliable performance,low p ressu re d rop and low in i t i a l cos t . TheSelectTOOLS Software can help choose the correctattenuator for your application.
Attenuator section
Cat 570 13
Air handler selectionSelection of flexible Skyline outdoor air handlersdepends on many different criteria. To simplify thisprocess, McQuay has designed an innovat ivecomputerized select ion program - the Skyl ineSeIectTOOLS Software. It allows the user to developan air handler from the ground up, and obtain all of thedetail required for proper design and specification. Theuser can have a unit designed in a matter of minutes.
The program is completely integrated. All input data iscarried through the selection process and consideredas calculations are made. Because the program isintegrated, the opportunity for errors is reduced. Thesoftware guides the user through the selection process.On-line editing helps select only viable options. Theprogram is provided so that even the less experienceduser can select air handlers accurately.
The design of an efficient air handler system isdependent on accurate system design and properequipment selection. Factors which affect the unitselection include applicable codes, venti lat ionrequirements, heating and cooling space loads,acceptable temperature differentials, thermal mediaand installation limitations. The selection of the unit canbe broken down into four steps; unit type and size,coils, accessories, and fan and motor requirements.
The unit is generally selected based on the air volumerequired and the desired face velocity through thecooling coil. For cooling coils, 400-600 feet per minuteis considered the optimum face velocity range fordehumidification and the prevention of any moisturecarryover. The Skyline SeIectTOOLS Software willselect the unit size based on air flow and face velocityrequirements. Once the unit size is determined, thecoils and all accessory components are selected. Onceall components and coils are selected (identifying thetotal internal component pressure drop), the fan can beselected.
Selection of coilsThe Skyline air handler provides the ability to selectfrom multiple face area coils per unit size. Once the coilsize is selected, the row and fin requirements can bedetermined based on performance criteria. McQuayoffers an extensive line of coil types and circuitings.This wide variety of circuiting, row, and fin spacing, inaddition to different material types, can provide a coilselection that will handle the load required.Heating, cooling, and combination cooling and reheatsections are available. Coil sections come in manydifferent depths to accommodate multiple rows of coils,and to provide access on the leaving air side orbetween coils for cleaning and inspection of the drain
pan. Access in the coil section can be minimized ormaximized depending on the space available and jobneeds. Coil sections can be placed as needed in theunit, and as many sections as required for conditioningof air can be provided.
Selection of accessoriesThe Skyline outdoor air handler offers a completeselection of component and section types, in a varietyof unit arrangements and configurations. Thesecomponent options are available to provide propermixing, filtration, and temperature control of the air tomeet specific application requirements. The outsideand/or return air can be brought into the unit through aplenum, mixing box, or economizer. For mixing of thetwo air streams, dampers are required to modulate anddirect outside and return air. This can be accomplishedthrough the use of a mixing box or economizer. Bothsection types use the McQuay patented UltraSeal lowleak dampers. Blenders/air mixers are also available toprovide proper mixing of two air streams, to preventstratification and avoid damage to equipment due tofreezing temperatures.
To promote good air filtration, many different filtermedia types and arrangements are offered. Filters canbe provided in angular or flat filter racks, a variety ofmedia efficiencies, and with or without a prefilter. Thefilter section can be located anywhere in the unit tof i l ter air as it enters the unit, or in a f inal f i l terarrangement before it leaves the unit. Bag or cartridgefilters can be either front or side loading.
Also available are many different size access sections,for field-installed components or to provide accessbetween components. Other options include diffusers,p lenums, face and bypass dampers , soundattenuators, and blenders/air mixers.
Standard access doors open outward for maximumaccessibility to internal components.
Fan selectionFan selection requires an accurate calculation of theresistance to the airflow through the entire system. Thistotal resistance consists of the sum of two parts - theexternal and internal static pressure. The externalstatic pressure is the static pressure found in thedistribution system, external to the air handler. Theinternal unit resistance is the sum of the resistance ofthe coils and various other unit components andaccessories. Component pressure drops are listed forspecific air flows in this Catalog.
14 Cat 570
Use the Skyline SeIectTOOLS Software to determineinternal component pressure drops of the system.Once the total static pressure is known, the softwarewill identify the fans available to properly handle the airflow and static pressure for the system. The softwarewill generate a full fan curve based on the fan selectionand point of operation.
WARNING
SMOKE CONTROL AND MANAGEMENT SYSTEMS
Improper smoke or fume air handling can result in severe personal injury or death. A registered Professional
Engineer must design and approve the air conditioner and air handler application to make sure smoke and fume
control meet local fire codes and NFPA requirements for the specific building application.
Cat 570 15
Quick select table
NOTES: Values based on typical industry sizes. Skyline Air Handling units are available in 2 inch increments of height and width to fit exact space requirements. Approximate shipping weights include roofcap option, 6"curb-ready base and double wall construction. Coil weights based on aluminum fins and 12 fins per inch with 18" vestibule. Mixing box section includes an end damper with hood. Economizer section includes side dampers with hoods. Front load filter sections include 24" upstream plenum section with tread plate for heavy duty floor liner. Height dimension includes 6" curb-ready base. Only horizontal units are available. Upblast and downblast poises not available for either housed fans or twin fans.
DESCRIPTION UNIT SIZE003 004 006 008 010 012 014
Airflow Range, CFM 900-2500 1200-3100 1700-4600 2200-6000 2900-7700 3600-9700 4200-11200CFM @ 500 Feet/Minute Through Large Face Area Coil 1550 1950 2850 3750 4800 6050 7000Height x Width, in. 34 x 38 38 x 40 38 x 52 40 x 58 44 x 64 50 x 66 50 x 74COOLING COIL FACE AREA, sq.ft.Staggered Large 3.9 4.8 6.6 8.5 10.7 13.5 15.4Large 3.1 3.9 5.7 7.5 9.6 12.1 14.0Staggered Medium 2.6 3.4 4.7 6.4 8.3 9.8 11.2Medium 2.1 2.8 4.1 5.6 7.4 8.8 10.2Small NA 2.3 3.3 4.7 6.4 7.7 8.9FAN SECTION - depth, in. / weight, lbs.Largest Housed Fan & Motor Avail. w/ Top Hor. Discharge 32/478 32/492 36/24 40/928 40/951 46/1175 46/1271Largest Inline Fan and Motor Available N/A N/A N/A N/A N/A 44/1189 44/1222Largest Belt Drive Plenum Fan and Motor Available N/A N/A N/A N/A 34/947 42/1271 42/932Largest Direct Drive Plenum Fan and Motor Available N/A N/A N/A 44/902 46/1054 56/1431 56/1514Largest Twin Fan and Motor Available N/A N/A N/A 50/1099 54/1461 56/1537 58/1726MIXING BOX - depth, in. / weight, lbs. Mixing Box Only 20/232 20/252 20/299 20/344 22/421 24/454 24/493ECONOMIZER - depth, in. / weight, lbs. 66/602 66/675 70/760 66/804 74/950 72/959 77/1130BLENDER - depth, in. / weight, lbs.Largest Kees 18/189 20/219 24/292 26/348 28/401 34/492 36/554Largest Blender Products IV 18/187 22/224 26/311 30/384 34/459 38/525 40/604SIDE LOAD FILTER SECTIONS - depth, in. / weight, lbs.Flat 2" and 4" 12/163 12/174 12/209 12/235 12/259 12/281 12/3012” Angular 32/324 30/332 30/397 30/437 30/479 30/504 30/548Cartridge (12” deep w/2” Pre-Filter) 22/257 22/286 22/343 22/400 22/438 22/474 22/514Bag (36” w/2” Pre-Filter) 42/398 42/431 42/517 42/584 42/640 42/677 42/734FRONT LOAD FILTER SECTIONS - depth, in. / weight, lbs.Cartridge (12” deep w/2” Pre-Filter) 16/222 16/239 16/294 16/340 16/368 16/424 16/456Bag (36” w/2” Pre-Filter) 40/388 40/419 40/497 40/570 40/611 40/678 40/735FACE AND BYPASS - depth, in. / weight, lbs.Internal 12/188 12/206 12/248 12/284 12/321 12/352 12/386External 18/264 18/289 18/349 20/415 22/482 24/549 24/595COIL SECTIONS - depth, in. / weight, lbs.Heating Only (2 Row Water) 12/326 12/358 12/407 12/459 12/503 12/558 12/597Cooling Only (4 Row Water) 24/495 24/663 24/767 24/733 24/814 24/903 24/1004Cooling Only (6 Row Water) 24/527 24/703 24/822 24/805 24/905 24/1017 24/1136Cooling and Reheat (12 Row Cooling & 1 Row Heating) 36/797 36/1033 36/1236 36/1289 36/1475 36/1690 36/1868ACCESS SECTIONS - depth, in. / weight, lbs.16” Deep 16/171 16/183 16/217 16/241 16/260 16/277 16/29924” Deep 24/217 24/231 24/274 24/304 24/329 24/349 24/37730” Deep 30/252 30/270 30/320 30/355 30/384 30/407 30/44036” Deep 36/293 36/313 36/371 36/410 36/444 36/470 36/50942” Deep 42/329 42/352 42/417 42/461 42/499 42/529 42/57248” Deep 48/366 48/391 48/464 48/513 48/556 48/588 48/68854” Deep 54/386 54/411 54/489 54/581 54/631 54/663 54/722DIFFUSER - depth, in. / weight, lbs.With Housed Fan 10/122 10/132 10/159 12/195 12/211 16/265 16/285With Inline Fan N/A N/A N/A N/A N/A 18/287 18/309ATTENUATOR - depth, in. / weight, lbs. Short 40/368 40/449 40/531 40/673 40/749 40/831 40/901Medium 52/485 52/595 52/742 52/858 52/958 52/1166 52/1280Long 64/590 64/726 64/944 64/1091 64/1216 64/1420 64/1560SUPPLY OR RETURN PLENUM - depth, in. / weight, lbs.Top, Bottom or End Opening 14/160 16/194 16/232 18/277 20/319 22/360 22/391
16 Cat 570
Quick select table - continued
NOTES: Values based on typical industry sizes. Skyline Air Handling units are available in 2 inch increments of height and width to fit exact space requirements. Approximate shipping weights include roofcap option, 6"curb-ready base and double wall construction. Coil weights based on aluminum fins and 12 fins per inch with 18" vestibule. Mixing box section includes an end damper with hood. Economizer section includes side dampers with hoods. Front load filter sections include 24" upstream plenum section with tread plate for heavy duty floor liner. Height dimension includes 6" curb-ready base. Only horizontal units are available. Upblast and downblast poises not available for either housed fans or twin fans.
DESCRIPTION UNIT SIZE017 021 025 030 035 045 055
Airflow Range, CFM 5000-13500 6000-16000 7300-19400 8500-22500 10000-26500 9600-25500 11400-30200CFM @ 500 Feet/Minute Through Large Face Area Coil 8400 10050 12150 14150 16700 21300 25200Height x Width, in. 52 x 80 52 x 82 66 x 86 66 x 98 72 x 102 84 x 106 96 x 106COOLING COIL FACE AREA, sq. ft.Staggered Large 18.3 21.9 27.4 31.9 37.1 50.4 N/ALarge 16.8 20.1 24.3 28.3 33.4 42.6 50.4Staggered Medium 13.7 17.2 21.3 24.8 29.7 34.9 46.5Medium 12.6 15.8 18.2 21.2 24.1 31.0 38.8Small 11.2 14.4 16.7 19.5 22.3 27.1 34.9FAN SECTION - depth, in. / weight, lbs.Largest Housed Fan & Motor Availablew/ Top Horizontal Dishcharge 50/1584 52/1735 58/2137 58/2410 58/2485 58/2574 60/2718
Largest Inline Fan & Motor Available 48/1520 54/1930 64/2810 64/2953 70/3505 82/4184 82/4524Largest Belt Drive Plenum Fan & Motor Available 48/1823 52/2103 56/2690 58/3063 62/3430 66/3773 66/4150Largest Direct Drive Plenum Fan & Motor Available 66/1608 68/1672 78/2643 78/2965 84/4082 86/4382 92/4633Largest Twin Fan and Motor Available 58/1821 66/2296 66/2639 74/3269 82/3839 78/4415 78/5077MIXING BOX - depth, in. / weight, lbs. Mixing Box Only 26/564 30/657 32/872 32/1022 36/1168 42/1248 48/1328ECONOMIZER - depth, in. / weight, lbs. 80/1226 84/1319 84/1409 86/1768 100/1911 106/2136 112/2318BLENDER - depth, in. / weight, lbs. Largest Kees 38/627 42/721 46/1023 48/1219 58/1496 64/1747 68/1921Largest Blender Products IV 46/775 48/841 52/1087 60/1434 64/1588 70/1902 70/2287SIDE LOAD FILTER SECTIONS - depth, in. / weight, lbs.Flat 2" and 4" 12/330 12/348 12/487 12/609 12/643 12/675 12/7092” Angular 30/616 30/638 32/836 32/984 32/1055 32/1129 32/1208Cartridge (12” deep w/2” Pre-Filter) 22/576 22/627 22/795 22/970 22/1042 22/1115 22/1193Bag (36” w/2” Pre-Filter) 42/796 42/844 42/1054 42/1279 42/1348 44/1428 44/1515FRONT LOAD FILTER SECTIONS - depth, in. / weight, lbs.Cartridge (12” deep w/2” Pre-Filter) 16/540 16/573 16/771 16/882 16/1012 20/1495 20/1787Bag (36” w/2” Pre-Filter) 40/814 40/863 40/1074 40/1299 40/1403 44/1815 44/2122FACE AND BYPASS - depth, in. / weight, lbs.Internal 12/422 12/452 12/617 12/747 12/800 12/896 12/897External 26/684 30/778 32/1032 32/1200 34/1313 44/1458 50/1656COIL SECTIONS - depth, in. / weight, lbs.Heating Only (2 Row Water) 12/657 16/740 12/1042 12/1133 12/1144 16/1219 16/1339Cooling Only (4 Row Water) 24/1105 24/1208 36/2087 36/2292 36/2320 48/2390 48/2461Cooling Only (6 Row Water) 24/1262 24/1396 42/2506 42/2829 42/2888 48/3177 48/3494Cooling and Reheat (12 Row Cooling & 1 Row Heating) 36/2100 36/2358 42/2450 42/3084 42/3724 42/4170 42/4671ACCESS SECTIONS - depth, in. / weight, lbs.16” Deep 16/323 16/339 16/478 16/587 16/618 16/655 16/68724” Deep 24/407 24/426 24/577 24/697 24/731 24/775 24/81430” Deep 30/474 30/497 30/657 30/784 30/823 30/783 30/82236” Deep 36/549 36/575 36/744 36/879 36/923 36/969 36/101742” Deep 42/617 42/645 42/823 42/1032 42/1084 42/1138 42/119548” Deep 48/741 48/774 48/964 48/1121 48/1177 48/1235 48/129754” Deep 54/777 54/811 54/1025 54/1188 54/1247 54/1309 54/1374DIFFUSER - depth, in. / weight, lbs.With Housed Fan 16/309 16/326 24/568 24/685 24/717 30/1004 30/1295With Inline Fan 18/334 22/406 26/603 26/723 28/789 32/1222 32/2016ATTENUATOR - depth, in. / weight, lbs. Short 40/1006 40/1095 40/1529 40/1749 40/1894 40/2083 40/2294Medium 52/1436 52/1585 52/2051 52/2285 52/2591 52/2850 52/3135Long 64/1752 64/1973 64/2518 64/2799 64/3124 64/3436 64/3779SUPPLY OR RETURN PLENUM - depth, in. / weight, lbs.Top, Bottom or End Opening 24/475 28/547 30/741 30/881 32/962 36/1077 40/1195
Cat 570 17
Application considerationsFigure 1: Discharge duct layout
Notes:1. Elbows should not be closer than 1-1/2 to 2-1/2 times
the largest dimension of fan discharge opening.2. Dampers should be placed at least 3 fan diameters
downstream of the fan discharge.
Figures reprinted with permission from the 1979ASHRAE Guide and Data Book (Equipment).
Figure 2: Drain pan taps
Installation flexibilityMcQuay Skyline outdoor air handlers can ship fullyassembled or in sections as required by the job sitecondition to provide maximum installation flexibility.Multiple fan, coil, filter, mixing box, face and bypass,and access components allow the design flexibility ofbuilt-up systems with the cost advantage of factoryfabricated units.
Unit locationThe structural engineer should be involved to verifythat the roof has adequate strength and ability tominimize deflection. Extreme caution should be takenwhen using a wooden roof structure. Units should alsobe located away from building flue stacks or exhaustventilators to prevent possible entry of contaminated airthrough the outside air intake. Sufficient space shouldalso be allowed around the unit for service clearance.
Locating the unit away from occupied spaces and overutility areas, corridors, and auxiliary spaces will helpreduce the transmission of sound and vibration tooccup ied spaces . A concre te deck o r pad isrecommended when the unit is located over anoccupied space where good acoustics are essential.
Curb installationThe roof curb is field assembled and must be installedlevel (within 1/16 in. per foot side to side). A sub-basehas to be constructed by the contractor in applicationsinvolving pitched roofs. Gaskets are furnished andmust be installed between the unit and curb. Forproper installation, follow NRCA guidelines. Inapplications requiring post and rail installation, an I-beam securely mounted on multiple posts shouldsupport the unit on each side.
Applications in geographic areas that are subjected toseismic or hurricane conditions must meet coderequirements for fastening the unit to the curb and thecurb to the building structure.
Coil
PerforatedBaffle Plate
Damper BladesPerpendicularto Fan Shaft
15”
Note 1 Note 1
Note 2
Drain Pan
2P
2P
NegativePressure
18 Cat 570
DuctworkA well-designed duct layout will minimize systemresistance and sound generation. Duct connections toand from units should allow straight, smooth airflow. Anyabrupt change in duct size should be avoided. Sharpturns in the fan discharge should also be prevented,particularly turns opposed to wheel rotation. If sharpbends are necessary, turning vanes should be used.See Figure 1 on page 18 for good fan outlet practices.
Piping and drain pan trapsPiping should be in accordance with accepted industrystandards. Undue stress should not be applied at theconnection to coil headers. Pipe work should besupported independently of the coils with adequatepiping flexibility for thermal expansion. Drain lines andtraps should be run full size from the drain panconnection. Drain pans should have traps to permit thecondensate from the coils to drain freely. On a draw-through unit, the trap depth and the distance betweenthe trap outlet and drain pan outlet should be twice thenegative static pressure under normal unit operation.
Coil freeze protectionWhen applying the Skyline outdoor air handler ingeographic areas that experience subfreezingconditions, coil freeze protection measures must beprovided. Subfreezing temperatures can adverselyaffect water and steam coils during controlled oruncontrolled unit shutdowns and even during unitoperation. Some temperature stratification will occur,particularly at low ambient temperatures. Whenrequired, static air mixers/blenders are available thatcan s ign i f i cant ly improve mix ing and reducestratification. This can result in improved protectionagainst freeze-up.
Glycol is strongly recommended as a positive means offreeze protection for water coils. No control sequencecan prevent coil freezing in the event of a power failureor equipment malfunction. During those periods, glycolis the only positive means of freeze protection. Whenselecting water coils, glycol should be specified toaccount for performance differences.
Vibration isolationTo help keep noise and vibration compatible with theintended use of the conditioned air space, goodacoustical and vibration engineering practices shouldbe applied during the early stages of design.
Since most applications require vibration isolation, theSkyline outdoor air handler is available with factoryinstalled internal isolation. Internally isolated unitsfeature spring or rubber in shear isolators sizedspecifically for each fan wheel and unit size.
SoundThe unit inlet, outlet, and radiated sound levels foreach octave band based on your specific application,are calculated by the Skyline SeIectTOOLS Software.Sound performance data is derived from testingperformed in accordance with the AMCA Standard 300.The effects of various components, casework, and unitconfigurations have been taken into account.
FiltersFilters should be routinely replaced to minimize filterloading. As filters get dirty, the filter pressure dropincreases, causing a decrease in airflow. Dependingon fan type, this airflow change can be significant. Theeffect of filter loading is the most critical when using65% and 95% efficient filters.
When making a fan selection, a pressure dropcomponent for filters as they get dirty should beincluded in the system total static pressure. A valuemidway between clean and dirty fi lter ratings isrecommended. If a minimum airflow is critical, theselection of the fan RPM should be based upon theminimum airflow at the total static pressure associatedwith dirty filters. The motor horsepower will then bedetermined by the selected rpm and the total staticpressure assumed for dirty filters, which will yield thela rges t b rake horsepower. Fo l low ing theserecommendations should limit airflow fluctuation as thefilters load.
Air supply systems and fan lawsAn air supply system consists of an air handler cabinet,heat exchanger, filters, ductwork, grilles and registersused to distribute air throughout the building. Thesystem is independent of the fan used to supply thesystem.
The resistance of the system, referred to as staticpressure (SP), is dependent upon the quantity of air(CFM) that is moved through it. The air quantity isdetermined by the cooling, heating and ventilatingrequirements.
For any system, the static pressure will vary directly asthe square of the air quantity. This relationship betweenCFM and SP establishes the system curve for thatsystem and may be expressed as follows:
The system curve is unique for a particular systemconfiguration. Any change to the system caused bydirty filters, damper changes, etc., will result in a newsystem curve.
( ) ( )22
CFM1 SP1 CFM2 = or SP2 = SP1CFM2 SP2 CFM1
Cat 570 19
For fans operating at low pressures (less than 10" W.G.),the effects of a i r compression are negl ig ib le.Disregarding air compression allows fan operation in afixed system to be expressed by simple relationships.These relationships are known as fan laws and may beused to calculate the effects of fan speed and air densitychanges on this system.
1.The flow rate varies directly with the change in fanspeed:
A 10% increase in fan speed will give a 10% increasein air quantity.
2.The static pressure varies as the square of thechange in fan speed:
A 10% increase in fan speed will give a 21% increasein static pressure.
3.The fan brake horsepower varies as the cube of thechange in fan speed:
A 10% increase in fan speed will give a 33% increasein fan horsepower.
4. System static pressure and brake horsepower aredirectly proportional to the air density:
Consequent ly, the s ta t ic pressure and brakehorsepower decrease wi th an increase in a i rtemperature or higher altitude, and increase with adecrease in air temperature or lower altitude.
To determine fan performance for temperatures andaltitudes other than standard (70°F, 0 ft. altitude), thestatic pressure must be adjusted by the density ratiobefore the fan RPM and BHP requirements can bedetermined. Densi ty ra t ios are expressed astemperature and altitude conversion factors in Table 1.
Table 1: Temperature and altitude conversion factors
Fan and motor heatMotor and drive heat - The total energy input to anyfan motor is consumed in two ways - by heat dissipatedthrough the motor frame and by work output. Theamount of heat dissipated by the motor is a function ofits operating efficiency:
Motor heat = input x (1-motor efficiency)
A small amount of the motor work output is dissipatedby the drive mechanism, which also results in a heatgain. Belt drive losses are a function of belt tension andnumber of belts as well as power transmitted. Typicalbelt drive losses range from 2% to 6% of BHP.
Whether motor and drive heat gain become part of anair handling system cooling load depends on the motorlocation relative to the conditioned space. For airhandlers with internal motors, the motor and drive arewithin the conditioned space. Therefore, the motor anddrive add heat to the system. This heat must besubtracted from the cooling capacity and added to theheating capacity of the unit.
Fan heat generation - All of the power input to a fanresults in heat gain which must be considered as acooling load. The amount of heat generated is directlyproportional to the fan BHP:
Fan heat (Btuh) = BHP x 2545
Much of this heat generation occurs within the fanitself. Fans are not 100% efficient, and the energy
CFM1 RPM1 RPM2= or CFM2 = CFM1CFM2 RPM2 RPM1( )
SP1 RPM1 RPM2= or SP2 = SP1SP2 RPM2 RPM1( ) ( )
2 2
HP1 RPM1 RPM2= or HP2 = HP1HP2 RPM2 RPM1( )
3
( )3
density2 RPM2SP2 = SP1 density1 RPM1
density2 RPM2HP2 = HP1 density1 RPM1
( ) ( )
( ) ( )
2
3
AIR TEMP.
(°F)
ALTITUDE (FEET)0 1000 2000 3000 4000 5000 6000 7000 8000
-20 1.20 1.16 1.12 1.08 1.04 1.00 .97 .93 .890 1.15 1.10 1.08 1.02 .99 .95 .92 .88 .85
20 1.11 1.06 1.02 .98 .95 .92 .88 .85 .8240 1.06 1.02 .98 .94 .91 .88 .84 .81 .7860 1.02 .98 .94 .91 .88 .85 .81 .79 .7670 1.00 .96 .93 .89 .86 .83 .80 .77 .7480 .98 .94 .91 .88 .84 .81 .78 .75 .72100 .94 .91 .88 .84 .81 .78 .75 .72 .70120 .92 .88 .85 .81 .78 .76 .72 .70 .67140 .89 .85 .82 .79 .76 .73 .70 .68 .65160 .85 .82 .79 .76 .74 .70 .68 .65 .63200 .80 .77 .75 .72 .69 .67 .64 .62 .60250 .75 .72 .69 .67 .65 .62 .60 .58 .56
20 Cat 570
losses which occur are converted directly into heat.The work done by the fan on the airstream increasesthe temperature, pressure and velocity of air. The heatof compression required to raise the airstream to thisincreased energy level is also a heat gain.
As the air travels throughout the building, its energy isdeteriorated by friction, resulting in pressure drop. Thisis also heat gain, but it does not result in temperaturerise because the air expands as the pressure isreduced. The expansion is a cooling process whichoffsets the heat generated by friction.
Typical fan and motor heat values are given inFigure 3.
Figure 3: Fan and motor heat gain
Air modulationOne method of fan modulation is to use inlet guidevanes. Fan volume reduction with inlet vanes isaccomplished by pre-spinning the air in the direction offan rotation. The effect of pre-spinning results indecreased air delivery, static pressure and brakehorsepower. For each position of inlet guide vanes, anew fan curve is created. Brake horsepower reductionscannot be read directly off the fan curve on inlet vaneapplications because a new fan curve is generated asthe inlet vane closes.
It is also difficult to estimate turn down capability oninlet vane applications. Any time a VAV system withterminal boxes is controlled by a static pressure
sensor, a system resistance curve is developed whichpasses through the design operating point and aminimum static pressure control point. This systemcurve will affect where the fan will cross into theunstable operating range. An illustration of inlet vaneturndown is presented in Figure 4.
Inlet vanes operate most efficiently when the fan ischosen at or near peak efficiency. Inlet guide vanesoffer good power savings, wide modulation range, andlow maintenance.
Figure 4: Inlet vane control reduction factors
Follow percent of design CFM up to system curve andleft for percent of design static pressure. Followpercent of design CFM up to BHP curve and left forpercent of rated horsepower.
NOTE: Fan performance with inlet vane control atother than wide open position is not within the scope ofour air handler certification program with ARI.
Hea
t Gai
n (M
BH)
200
160
120
80
40
000 10 20 30 40 50 60 70
Brake Horsepower
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Cat 570 21
22 Cat 570
Engineering and physical dataTable 2: Component pressure drops (inches of water)
*Velocity exceeds 1000 fpm.
**Blender data based on Blender Products IV.
UNITSIZE CFM
DAMPERS F & BP FACE F & BP BY-PASS PLENUMDif-
fuser
BLENDER** ATTENUATOR
MXB Econ. Int. Small
Int. Med. Large Int.
SmallInt.
Med. Large Top/BotIntlet
Top/BotOutlet One Two Three 3 ft. 4 ft. 5 ft.
003
900 0.01 0.02 — 0.03 0.01 — 0.09 0.03 0.01 0.01 0.15 0.06 0.03 — 0.01 0.01 0.011200 0.03 0.04 — 0.06 0.02 — 0.15 0.05 0.03 0.02 0.15 0.11 0.05 — 0.02 0.02 0.021500 0.04 0.06 — 0.09 0.03 — 0.24 0.07 0.04 0.03 0.15 0.17 0.08 — 0.03 0.03 0.031800 0.06 0.09 — * 0.04 — * 0.11 0.06 0.04 0.15 0.24 0.11 — 0.04 0.05 0.05
004
1200 0.02 0.03 0.05 0.03 0.01 0.05 0.14 0.04 0.01 0.01 0.15 0.04 0.05 — 0.01 0.01 0.011600 0.04 0.06 0.09 0.06 0.02 0.08 0.24 0.06 0.03 0.02 0.15 0.07 0.08 — 0.02 0.02 0.022000 0.06 0.09 * 0.09 0.03 * 0.38 0.10 0.04 0.02 0.15 0.11 0.13 — 0.03 0.04 0.042400 0.09 0.13 * 0.13 0.05 * 0.54 0.14 0.06 0.03 0.15 0.16 0.18 — 0.05 0.05 0.06
006
1700 0.02 0.03 0.05 0.03 0.01 0.04 0.12 0.04 0.01 0.01 0.15 0.10 0.05 0.04 0.01 0.01 0.012300 0.04 0.06 0.08 0.05 0.02 0.08 0.23 0.07 0.02 0.02 0.15 0.18 0.09 0.07 0.02 0.03 0.032900 0.06 0.09 * 0.09 0.03 0.12 0.36 0.11 0.04 0.03 0.15 0.28 0.14 0.11 0.04 0.04 0.053500 0.09 0.14 0.11 * 0.05 0.17 0.50 0.15 0.06 0.04 0.15 0.41 0.20 0.16 0.06 0.06 0.07
008
2200 0.03 0.04 0.04 0.02 0.01 0.06 0.16 0.04 0.01 0.01 0.15 0.07 0.05 0.03 0.01 0.01 0.023000 0.05 0.07 0.07 0.04 0.01 0.10 0.30 0.08 0.03 0.01 0.15 0.14 0.09 0.06 0.02 0.03 0.033800 008 0.12 * 0.06 0.02 0.15 0.48 0.12 0.04 0.02 0.15 0.22 0.15 0.10 0.03 0.04 0.054600 0.12 0.17 * 0.09 0.03 0.22 0.70 0.18 0.06 0.03 0.15 0.32 0.22 0.14 0.05 0.06 0.08
010
2900 0.03 0.04 0.03 0.02 0.01 0.08 0.22 0.04 0.01 0.01 0.15 0.09 0.06 0.06 0.01 0.02 0.023900 0.05 0.07 0.05 0.04 0.02 0.14 0.39 0.08 0.03 0.02 0.15 0.17 0.11 0.11 0.02 0.03 0.044900 0.08 0.10 0.08 0.06 0.02 0.22 0.62 0.13 0.04 0.02 0.15 0.26 0.17 0.18 0.04 0.05 0.075900 0.12 0.15 0.10 0.08 0.04 0.29 0.90 0.18 0.06 0.04 0.15 0.38 0.25 0.26 0.05 0.07 0.10
012
3600 0.03 0.04 0.03 0.02 0.01 0.08 0.11 0.04 0.02 0.01 0.15 0.05 0.06 0.06 0.02 0.02 0.024800 0.06 0.07 0.06 0.03 0.01 0.14 0.20 0.07 0.03 0.02 0.15 0.10 0.11 0.11 0.03 0.03 0.046000 0.09 0.11 0.09 0.05 0.02 0.21 0.31 0.11 0.04 0.02 0.15 0.15 0.17 0.16 0.05 0.06 0.067200 0.13 0.16 0.11 0.08 0.03 0.28 0.45 0.16 0.06 0.03 0.15 0.22 0.25 0.24 0.08 0.08 0.09
014
4200 0.03 0.04 0.03 0.02 0.01 0.08 0.11 0.04 0.02 0.01 0.15 0.08 0.06 0.05 0.02 0.02 0.025400 0.06 0.07 0.05 0.03 0.01 0.13 0.19 0.07 0.03 0.02 0.15 0.13 0.10 0.09 0.03 0.03 0.046600 0.08 0.10 0.08 0.05 0.02 0.19 0.28 0.10 0.04 0.02 0.15 0.20 0.15 0.13 0.04 0.05 0.068800 0.15 0.18 0.12 0.08 0.04 0.31 0.50 0.18 0.07 0.04 0.15 0.35 0.26 0.23 0.08 0.09 0.11
017
5000 0.03 0.04 0.02 0.02 0.01 0.09 0.14 0.02 0.02 0.01 0.15 0.07 0.06 0.05 0.02 0.02 0.026700 0.06 0.07 0.04 0.03 0.01 0.17 0.25 0.04 0.03 0.02 0.15 0.12 0.11 0.09 0.03 0.03 0.048400 0.09 0.11 0.07 0.05 0.02 0.26 0.39 0.06 0.05 0.02 0.15 0.19 0.17 0.14 0.04 0.05 0.06
10100 0.13 0.15 0.10 0.08 0.03 0.38 0.56 0.08 0.07 0.03 0.15 0.27 0.25 0.20 0.06 0.08 0.10
021
6000 0.03 0.04 0.02 0.02 0.01 0.13 0.19 0.04 0.01 0.01 0.15 0.06 0.07 0.05 0.02 0.02 0.028000 0.05 0.06 0.03 0.03 0.01 0.23 0.34 0.07 0.03 0.01 0.15 0.11 0.12 0.09 0.03 0.03 0.04
10000 0.08 0.10 0.05 0.04 0.02 0.36 0.53 0.11 0.04 0.02 0.15 0.17 0.18 0.14 0.05 0.05 0.0712000 0.12 0.14 0.07 0.06 0.03 0.52 0.76 0.15 0.06 0.03 0.15 0.25 0.27 0.21 0.07 0.08 0.10
025
7300 0.03 0.04 0.02 0.02 0.01 0.07 0.10 0.05 0.02 0.01 0.15 0.06 0.05 0.06 0.02 0.02 0.029800 0.06 0.07 0.04 0.03 0.01 0.13 0.17 0.08 0.03 0.01 0.15 0.12 0.10 0.10 0.03 0.04 0.05
12200 0.09 0.11 0.06 0.05 0.02 0.21 0.27 0.13 0.05 0.02 0.15 0.18 0.15 0.16 0.05 0.06 0.0714600 0.13 0.15 0.09 0.07 0.02 0.30 0.38 0.18 0.07 0.03 0.15 0.26 0.22 0.22 0.07 0.09 0.11
030
8500 0.03 0.04 0.02 0.02 0.01 0.07 0.10 0.05 0.02 0.01 0.15 — 0.06 0.06 0.02 0.02 0.0211300 0.06 0.07 0.04 0.03 0.01 0.13 0.17 0.08 0.03 0.01 0.15 — 0.10 0.10 0.03 0.04 0.0414200 0.09 0.11 0.06 0.05 0.02 0.20 0.27 0.13 0.05 0.02 0.15 — 0.16 0.16 0.05 0.06 0.0717000 0.13 0.15 0.09 0.06 0.02 0.29 0.38 0.19 0.07 0.03 0.15 — 0.23 0.23 0.08 0.09 0.10
035
10000 0.03 0.04 0.02 0.02 0.01 0.08 0.10 0.05 0.02 0.01 0.15 — 0.07 0.06 0.02 0.02 0.0213400 0.06 0.07 0.03 0.03 0.01 0.15 0.17 0.09 0.03 0.02 0.15 — 0.12 0.11 0.04 0.04 0.0416700 0.09 0.10 0.05 0.05 0.02 0.23 0.27 0.14 0.05 0.02 0.15 — 0.18 0.16 0.06 0.06 0.0720000 0.13 0.15 0.06 0.07 0.02 0.33 0.38 0.20 0.07 0.03 0.15 — 0.26 0.24 0.08 0.09 0.11
045
13000 0.04 0.04 0.02 0.01 0.01 0.08 0.20 0.06 0.02 0.01 0.15 — 0.07 0.11 0.02 0.03 0.0317500 0.06 0.06 0.04 0.02 0.02 0.14 0.32 0.09 0.04 0.01 0.15 — 0.13 0.20 0.03 0.05 0.0522000 0.11 0.11 0.06 0.03 0.03 0.23 0.59 0.16 0.05 0.02 0.15 — 0.21 0.32 0.08 0.08 0.0926000 0.15 0.15 0.09 0.05 0.04 0.33 0.91 0.22 0.08 0.03 0.15 — 0.29 0.45 0.11 0.12 0.13
055
17000 0.04 0.04 0.02 0.01 0.01 0.08 0.22 0.05 0.02 0.01 0.15 — 0.10 0.21 0.03 0.03 0.0422000 0.06 0.06 0.05 0.02 0.02 0.15 0.30 0.10 0.05 0.02 0.15 — 0.14 0.35 0.04 0.06 0.0627000 0.11 0.11 0.06 0.03 0.03 0.23 0.62 0.17 0.06 0.03 0.15 — 0.25 0.27 0.08 0.09 0.1032000 0.14 0.14 0.09 0.04 0.04 0.31 0.87 0.23 0.09 0.03 0.15 — 0.29 0.37 0.12 0.13 0.14
Table 3: Filter media face areas and velocity through media
Notes: 400 fpm maximum for angular filters.
UNITSIZE CFM
FILTER FACE AREAS (SQ. FT.) & VELOCITIES (FPM)
Flat Panel 2” Angular 4” Angular Varicel SH Varicel II MH Varicel V DriPak 2000
Area Vel Area Vel Area Vel Area Vel Area Vel Area Vel Area Vel
003
900 3.2 281 10.1 89 N/A N/A 3.1 290 3.1 290 3.1 290 3.1 290
1200 3.2 375 10.1 119 N/A N/A 3.1 387 3.1 387 3.1 387 3.1 387
1500 3.2 469 10.1 149 N/A N/A 3.1 484 3.1 484 3.1 484 3.1 484
1800 3.2 563 10.1 178 N/A N/A 3.1 581 3.1 581 3.1 581 3.1 581
004
1200 5.7 211 11.4 105 N/A N/A 5.6 214 5.6 214 5.6 214 5.6 214
1600 5.7 281 11.4 140 N/A N/A 5.6 286 5.6 286 5.6 286 5.6 286
2000 5.7 351 11.4 175 N/A N/A 5.6 357 5.6 357 5.6 357 5.6 357
2400 5.7 421 11.4 211 N/A N/A 5.6 429 5.6 429 5.6 429 5.6 429
006
1700 7.6 224 15.3 111 N/A N/A 7.6 224 7.6 224 7.6 224 7.6 224
2300 7.6 303 15.3 150 N/A N/A 7.6 303 7.6 303 7.6 303 7.6 303
2900 7.6 382 15.3 190 N/A N/A 7.6 382 7.6 382 7.6 382 7.6 382
3500 7.6 461 15.3 229 N/A N/A 7.6 461 7.6 461 7.6 461 7.6 461
008
2200 8.8 250 17.7 124 17.7 124 8.1 272 8.1 272 8.1 272 8.1 272
3000 8.8 341 17.7 169 17.7 169 8.1 370 8.1 370 8.1 370 8.1 370
3800 8.8 432 17.7 215 17.7 215 8.1 469 8.1 469 8.1 469 8.1 469
4600 8.8 523 17.7 260 17.7 260 8.1 568 8.1 568 8.1 568 8.1 568
010
2900 10.0 289 19.0 153 19.0 153 10.0 290 10.0 290 10.0 290 10.0 290
3900 10.0 389 19.0 205 19.0 205 10.0 391 10.0 391 10.0 391 10.0 391
4900 10.0 489 19.0 258 19.0 258 10.0 491 10.0 491 10.0 491 10.0 491
5900 10.0 589 19.0 311 19.0 311 10.0 591 10.0 591 10.0 591 10.0 591
012
3600 13.2 273 30.3 119 20.3 177 13.1 275 13.1 275 13.1 275 13.1 275
4800 13.2 364 30.3 159 20.3 236 13.1 366 13.1 366 13.1 366 13.1 366
6000 13.2 455 30.3 198 20.3 296 13.1 458 13.1 458 13.1 458 13.1 458
7200 13.2 545 30.3 238 20.3 355 13.1 550 13.1 550 13.1 550 13.1 550
014
4200 17.0 247 34.1 123 22.9 183 14.4 292 14.4 292 14.4 292 14.4 292
5400 17.0 318 34.1 158 22.9 236 14.4 375 14.4 375 14.4 375 14.4 375
6600 17.0 388 34.1 193 22.9 288 14.4 458 14.4 458 14.4 458 14.4 458
8800 17.0 518 34.1 258 22.9 384 14.4 611 14.4 611 14.4 611 14.4 611
017
5000 19.0 263 35.7 140 36.0 139 18.9 265 18.9 265 18.9 265 18.9 265
6700 19.0 353 36.0 186 36.0 186 18.9 354 18.9 354 18.9 354 18.9 354
8400 19.0 442 36.0 233 36.0 233 18.9 444 18.9 444 18.9 444 18.9 444
10100 19.0 532 36.0 281 36.0 281 18.9 534 18.9 534 18.9 534 18.9 534
021
6000 23.2 259 38.0 158 38.0 158 23.0 261 23.0 261 20.8 288 23.0 281
8000 23.2 345 38.0 211 38.0 211 23.0 348 23.0 348 20.8 385 23.0 348
10000 23.2 431 38.0 263 38.0 263 23.0 435 23.0 435 20.8 481 23.0 435
12000 23.2 517 38.0 316 38.0 316 23.0 522 23.0 522 20.8 577 23.0 522
025
7300 26.6 274 39.9 183 39.9 183 26.5 275 26.5 275 26.5 275 26.5 275
9800 26.6 368 39.9 246 39.9 246 26.5 370 26.5 370 26.5 370 26.5 370
12200 26.6 459 39.9 306 39.9 306 26.5 460 26.5 460 26.5 460 26.5 460
14600 26.6 549 39.9 366 39.9 366 26.5 551 26.5 551 26.5 551 26.5 551
030
8500 32.8 269 45.8 186 45.8 186 32.6 261 32.6 261 32.6 261 32.6 261
11300 32.8 345 45.8 247 45.8 247 32.6 347 32.6 347 32.6 347 32.6 347
14200 32.8 433 45.8 310 45.8 310 32.6 436 32.6 436 32.6 436 32.6 436
17000 32.8 578 45.8 371 45.8 371 32.6 521 32.6 521 32.6 521 32.6 521
035
10000 39.4 254 63.3 158 63.3 158 39.1 256 39.1 256 37.7 265 39.1 256
13400 39.4 340 63.3 212 63.3 212 39.1 343 39.1 343 37.7 355 39.1 343
16700 39.4 424 63.3 264 63.3 264 39.1 427 39.1 427 37.7 443 39.1 427
20000 39.4 508 63.3 316 63.3 316 39.1 512 39.1 512 37.7 531 39.1 512
045
13000 49.4 263 65.5 198 65.5 198 49.1 265 49.1 265 49.1 265 49.1 26517500 49.4 354 65.5 267 65.5 267 49.1 356 49.1 356 49.1 356 49.1 35622000 49.4 445 65.5 336 65.5 336 49.1 448 49.1 448 49.1 448 49.1 44826000 49.4 526 65.5 397 65.5 397 49.1 529 49.1 529 49.1 529 49.1 529
055
17000 57.5 296 81.9 208 81.9 208 54.8 310 57.1 298 54.7 311 57.1 29822000 57.5 383 81.9 269 81.9 269 54.8 401 57.1 385 54.7 402 57.1 38527000 57.5 470 81.9 330 81.9 330 54.8 492 57.1 473 54.7 494 57.1 47332000 57.5 557 81.9 391 81.9 391 54.8 584 57.1 560 54.7 585 57.1 560
Cat 570 23
Table 4: Filter media air pressure drop based on clean filters
UNITSIZE CFM
FLAT PANEL ANGULAR PANEL HIGH EFFICIENCY CARTRIDGE
5700 PLEATED (30%) PLEATED 62 PLUS (70%) 5700 PLEATED (30%) PLEATED 62
PLUS (70%) Varicel SH Varicel II MH Varicel V
2" 2" 4" 2" 4" 2" 2" 4" 2" 4" 12" 4" 12"
N/A 30% 30% 70% 70% N/A 30% 30% 70% 70% 65% 85% 95% 65% 85% 95% 65% 85% 95%
003
900 0.11 0.12 0.11 0.15 0.12 0.02 0.01 — 0.03 — 0.18 0.25 0.26 0.18 0.31 0.36 0.10 0.13 0.221200 0.17 0.19 0.16 0.21 0.18 0.03 0.02 — 0.05 — 0.27 0.38 0.40 0.28 0.44 0.51 0.18 0.22 0.341500 0.23 027 0.23 0.29 0.25 0.04 0.03 — 0.06 — 0.37 0.53 0.55 0.40 0.58 0.66 0.27 0.34 0.471800 0.30 0.37 0.31 0.37 0.33 0.05 0.04 — 0.08 — 0.48 0.70 0.72 0.53 0.72 0.82 0.39 0.47 0.61
004
1200 0.07 0.07 0.07 0.10 0.08 0.03 0.02 — 0.04 — 0.12 0.16 0.16 0.11 0.22 0.26 0.06 0.08 0.141600 0.11 0.11 0.10 0.15 0.12 0.04 0.04 — 0.06 — 0.18 0.25 0.25 0.18 0.31 0.36 0.10 0.13 0.222000 0.15 0.17 0.15 0.20 0.17 0.06 0.05 — 0.08 — 0.24 0.34 0.35 0.25 0.40 0.47 0.15 0.19 0.302400 0.20 0.23 0.20 0.25 0.22 0.07 0.07 — 0.10 — 0.31 0.45 0.46 0.33 0.50 0.58 0.22 0.27 0.39
006
1700 0.08 0.08 0.07 0.11 0.09 0.03 0.02 — 0.04 — 0.12 0.17 0.17 0.12 0.23 0.27 0.06 0.08 0.152300 0.12 0.13 0.12 0.16 0.13 0.04 0.04 — 0.06 — 0.19 0.27 0.27 0.20 0.33 0.39 0.11 0.14 0.232900 0.17 0.19 0.17 0.22 0.18 0.06 0.06 — 0.09 — 0.26 0.38 0.39 0.28 0.44 0.51 0.17 0.22 0.333500 0.22 0.26 0.22 0.28 0.24 0.08 0.08 — 0.11 — 0.35 0.50 0.51 0.38 0.55 0.64 0.25 0.31 0.43
008
2200 0.09 0.09 0.09 0.12 0.10 0.03 0.03 0.03 0.05 0.04 0.15 0.21 0.21 0.17 0.29 0.34 0.08 0.10 0.183000 0.14 0.16 0.14 0.19 0.16 0.05 0.05 0.05 0.07 0.06 0.23 0.32 0.33 0.27 0.42 0.49 0.14 0.18 0.283800 0.20 0.24 0.20 0.25 0.22 0.07 0.07 0.07 0.10 0.08 0.32 0.46 0.47 0.39 0.56 0.65 0.22 0.28 0.404600 0.27 0.33 0.27 0.33 0.29 0.10 0.10 0.09 0.13 0.11 0.42 0.61 0.63 0.52 0.71 0.81 0.32 0.40 0.53
010
2900 0.12 0.13 0.12 0.16 0.14 0.05 0.04 0.04 0.07 0.05 0.20 0.28 0.28 0.20 0.34 0.40 0.11 0.15 0.243900 0.19 0.22 0.19 0.24 0.21 0.07 0.07 0.06 0.10 0.08 0.30 0.43 0.44 0.32 0.48 0.56 0.20 0.26 0.374900 0.26 0.32 0.27 0.32 0.28 0.10 0.10 0.09 0.13 0.11 0.41 0.60 0.62 0.46 0.64 0.73 0.31 0.39 0.525900 0.34 0.44 0.36 0.41 0.37 0.13 0.14 0.12 0.17 0.14 0.54 0.78 0.81 0.61 0.80 0.91 0.45 0.55 0.68
012
3600 0.13 0.14 0.13 0.14 0.12 0.06 0.05 0.05 0.08 0.06 0.17 0.23 0.24 0.17 0.29 0.35 0.09 0.12 0.204800 0.20 0.23 0.20 0.20 0.17 0.09 0.09 0.08 0.12 0.09 0.25 0.35 0.36 0.26 0.42 0.49 0.16 0.20 0.316000 0.27 0.33 0.28 0.27 0.24 0.12 0.13 0.11 0.16 0.13 0.34 0.49 0.51 0.37 0.55 0.63 0.25 0.31 0437200 — — — 0.35 0.31 0.15 0.17 0.15 0.20 0.17 0.45 0.64 0.67 0.50 0.68 0.78 0.35 0.43 0.56
014
4200 0.09 0.09 0.09 0.12 0.10 0.06 0.06 0.05 0.08 0.07 0.17 0.24 0.24 0.19 0.32 0.37 0.10 0.12 0.215400 0.13 0.14 0.13 0.17 0.14 0.08 0.09 0.08 0.12 0.09 0.24 0.35 0.36 0.27 0.43 0.50 0.15 0.20 0.306600 0.17 0.20 0.17 0.22 0.19 0.11 0.12 0.11 0.15 0.13 0.32 0.46 0.48 0.37 0.55 0.63 0.23 0.28 0.418800 0.26 0.32 0.27 0.32 0.29 0.17 0.19 0.17 0.22 0.19 0.41 0.59 0.61 0.59 0.78 0.88 0.39 0.48 0.62
017
5000 0.10 0.10 0.10 0.13 0.11 0.04 0.04 0.04 0.06 0.04 0.16 0.22 0.22 0.16 0.28 0.33 0.09 0.11 0.196700 0.15 0.17 0.15 0.20 0.17 0.06 0.06 0.06 0.08 0.07 0.24 0.34 0.35 0.25 0.40 0.47 0.15 0.19 0.308400 0.21 0.25 0.21 0.26 0.23 0.08 0.08 0.08 0.11 0.09 0.33 0.47 0.49 0.36 0.53 0.61 0.23 0.29 0.41
10100 0.27 0.34 0.28 0.33 0.30 0.11 0.11 0.11 0.14 0.12 0.43 0.62 0.64 0.48 0.66 0.76 0.33 0.41 0.54
021
6000 0.10 0.10 0.09 0.13 0.11 0.05 0.04 0.04 0.07 0.05 0.15 0.22 0.22 0.16 0.28 0.33 0.10 0.13 0.228000 0.15 0.16 0.14 0.19 0.16 0.07 0.07 0.07 0.10 0.08 0.23 0.33 0.34 0.24 0.39 0.46 0.18 0.22 0.33
10000 0.20 0.24 0.20 0.25 0.22 0.10 0.10 0.10 0.13 0.11 0.32 0.46 0.47 0.35 0.51 0.59 0.27 0.33 0.4612000 0.26 0.32 0.27 0.32 0.29 0.13 0.14 0.13 0.17 0.14 0.41 0.60 0.62 0.46 0.64 0.74 0.38 0.47 0.60
025
7300 0.11 0.11 0.10 0.14 0.12 0.06 0.06 0.05 0.08 0.07 0.17 0.23 0.24 0.17 0.30 0.35 0.09 0.12 0.209800 0.16 0.18 0.16 0.21 0.18 0.09 0.09 0.09 0.12 0.10 0.25 0.36 0.37 0.27 0.42 0.49 0.16 0.21 0.31
12200 0.22 0.26 0.22 0.28 0.24 0.12 0.13 0.12 0.16 0.14 0.35 0.50 0.51 0.38 0.55 0.64 0.25 0.31 0.4314600 0.29 0.35 0.29 0.35 0.31 0.16 0.18 0.16 0.20 0.18 0.45 0.65 0.67 0.50 0.69 0.79 0.35 0.43 0.57
030
8500 0.10 0.10 0.09 0.13 0.11 0.06 0.06 0.06 0.08 0.07 0.15 0.22 0.22 0.16 0.28 0.33 0.08 0.11 0.1911300 0.15 0.16 0.14 0.19 0.16 0.09 0.09 0.09 0.12 0.10 0.23 0.33 0.34 0.24 0.39 0.46 0.14 0.18 0.2914200 0.20 0.24 0.20 0.26 0.22 0.13 0.14 0.12 0.16 0.14 0.32 0.46 0.47 0.35 0.52 0.60 0.22 0.28 0.4017000 0.26 0.32 0.27 0.32 0.29 0.16 0.18 0.16 0.21 0.18 0.41 0.60 0.62 0.46 0.64 0.74 0.32 0.39 0.52
035
10000 0.09 0.10 0.09 0.13 0.10 0.05 0.04 0.04 0.07 0.05 0.15 0.21 0.21 0.15 0.27 0.32 0.09 0.11 0.1913400 0.14 0.16 0.14 0.19 0.16 0.07 0.07 0.07 0.10 0.08 0.23 0.32 0.33 0.24 0.39 0.45 0.15 0.19 0.3016700 0.20 0.23 0.20 0.25 0.22 0.10 0.10 0.10 0.13 0.11 0.31 0.44 0.46 0.34 0.50 0.58 0.23 0.29 0.4120000 0.26 0.31 0.26 0.32 0.28 0.13 0.14 0.13 0.17 0.14 0.40 0.58 0.60 0.45 0.63 0.72 0.32 0.40 0.53
045
13000 0.11 0.06 0.10 0.14 0.12 0.07 0.04 0.07 0.10 0.08 0.16 0.23 0.24 0.17 0.29 0.34 0.12 0.16 0.2417500 0.16 0.11 0.16 0.21 0.18 0.11 0.07 0.10 0.14 0.12 0.25 0.34 0.36 0.26 0.42 0.43 0.18 0.27 0.3622000 0.22 0.15 0.22 0.26 0.23 0.14 0.09 0.14 0.18 0.15 0.34 0.51 0.50 0.37 0.54 0.63 0.28 0.32 0.5026000 0.29 0.22 0.30 0.31 0.31 0.18 0.12 0.18 0.23 0.20 0.44 0.67 0.54 0.49 0.67 0.78 0.43 0.48 0.65
055
17000 0.12 0.07 0.11 0.16 0.13 0.07 0.04 0.07 0.10 0.08 0.16 0.22 0.24 0.18 0.30 0.35 0.14 0.17 0.2222000 0.17 0.11 0.16 0.22 0.19 0.11 0.08 0.10 0.14 0.12 0.24 0.34 0.35 0.26 0.44 0.43 0.19 0.25 0.3227000 0.22 0.14 0.23 0.28 0.25 0.15 0.10 0.15 0.18 0.16 0.34 0.50 0.50 0.38 0.54 0.65 0.28 0.35 0.4432000 0.29 0.23 0.30 0.36 0.32 0.17 0.12 0.17 0.22 0.19 0.45 0.67 0.55 0.49 0.68 0.79 0.45 0.49 0.67
24 Cat 570
Table 4: Filter media air pressure drop based on clean filters (continued)
UNITSIZE CFM
HIGH EFFICIENCY BAG
DriPak 2000
36" 30" 22" 19" 15" 12"
65% 85% 95% 65% 85% 95% 65% 85% 95% 45% 45% 45%
003
900 0.15 0.22 0.29 0.15 0.21 0.32 0.17 0.28 0.42 0.11 0.10 0.131200 0.20 0.29 0.39 0.19 0.29 0.43 0.23 0.37 0.56 0.18 0.14 0.171500 0.24 0.36 0.49 0.24 0.36 0.53 0.28 0.46 0.70 0.25 0.19 0.211800 0.29 0.43 0.59 0.29 0.43 0.64 0.33 0.56 0.83 0.33 0.24 0.25
004
1200 0.11 0.16 0.21 0.11 0.16 0.24 0.13 0.21 0.32 0.07 0.07 0.101600 0.15 0.21 0.29 0.14 0.21 0.31 0.17 0.27 0.42 0.11 0.10 0.132000 0.18 0.27 0.36 0.18 0.26 0.39 0.21 0.34 0.52 0.16 0.13 0.162400 0.22 0.32 0.44 0.21 0.32 0.47 0.25 0.41 0.62 0.21 0.16 0.19
006
1700 0.12 0.17 0.22 0.11 0.17 0.25 0.14 0.21 0.33 0.08 0.07 0.112300 0.15 0.23 0.31 0.15 0.22 0.33 0.18 0.29 0.44 0.12 0.11 0.142900 0.19 0.28 0.39 0.19 0.28 0.42 0.22 0.37 0.55 0.17 0.14 0.173500 0.23 0.34 0.47 0.23 0.34 0.51 0.27 0.44 0.66 0.23 0.18 0.20
008
2200 0.13 0.19 0.25 0.13 0.19 0.28 0.15 0.24 0.37 0.09 0.08 0.123000 0.17 0.26 0.35 0.17 0.26 0.38 0.20 0.33 0.50 0.15 0.13 0.163800 0.22 0.32 0.44 0.22 0.32 0.48 0.26 0.42 0.63 0.21 0.17 0.194600 0.26 0.39 0.54 0.26 0.39 0.58 0.31 0.51 0.76 0.28 0.21 0.23
010
2900 0.16 0.23 0.31 0.15 0.23 0.34 0.18 0.30 0.45 0.13 0.11 0.143900 0.21 0.31 0.42 0.21 0.31 0.46 0.24 0.40 0.60 0.20 0.16 0.194900 0.26 0.39 0.53 0.26 0.39 0.57 0.30 0.50 0.75 0.28 0.21 0.235900 — — — — — — — — — — — —
012
3600 0.14 0.21 0.28 0.14 0.20 0.30 0.16 0.26 0.40 0.11 0.09 0.134800 0.19 0.27 0.37 0.18 0.27 0.40 0.22 0.35 0.53 0.16 0.14 0.176000 0.23 0.34 0.47 0.23 0.34 0.50 0.27 0.44 0.66 0.23 0.18 0.207200 0.27 0.41 0.56 0.27 0.41 0.60 0.32 0.53 0.79 0.30 0.23 0.24
014
4200 0.14 0.21 0.28 0.14 0.21 0.31 0.17 0.27 0.41 0.11 0.10 0.135400 0.18 0.27 0.36 0.18 0.27 0.40 0.21 0.35 0.52 0.16 0.13 0.166600 0.22 0.33 0.45 0.22 0.33 0.48 0.26 0.42 0.64 0.21 0.17 0.208800 0.29 0.43 0.60 0.29 0.43 0.65 0.34 0.56 0.84 0.33 0.24 0.25
017
5000 0.14 0.20 0.27 0.13 0.20 0.29 0.16 0.25 0.39 0.10 0.09 0.126700 0.18 0.26 0.36 0.18 0.26 0.39 0.21 0.34 0.52 0.15 0.13 0.168400 0.22 0.33 0.45 0.22 0.33 0.49 0.26 0.43 0.64 0.22 0.17 0.20
10100 0.27 0.39 0.55 0.27 0.40 0.59 0.31 0.51 0.77 0.29 0.22 0.23
021
6000 0.13 0.20 0.26 0.13 0.19 0.29 0.16 0.25 0.38 0.10 0.09 0.128000 0.18 0.26 0.35 0.17 0.26 0.38 0.21 0.33 0.51 0.15 0.13 0.16
10000 0.22 0.32 0.44 0.22 0.32 0.48 0.25 0.42 0.63 0.21 0.17 0.1912000 0.26 0.39 0.53 0.26 0.39 0.57 0.30 0.50 0.75 0.28 0.21 0.23
025
7300 0.14 0.21 0.28 0.14 0.20 0.30 0.16 0.26 0.40 0.11 0.09 0.139800 0.19 0.28 0.37 0.18 0.27 0.41 0.22 0.36 0.54 0.16 0.14 0.17
12200 0.23 0.34 0.47 0.23 0.34 0.51 0.27 0.44 0.66 0.23 0.18 0.2014600 0.27 0.41 0.56 0.28 0.41 0.61 0.32 0.53 0.79 0.30 0.23 0.24
030
8500 0.13 0.20 0.26 0.13 0.19 0.29 0.16 0.25 0.38 0.10 0.09 0.1211300 0.18 0.26 0.35 0.17 0.26 0.38 0.21 0.33 0.51 0.15 0.13 0.1614200 0.22 0.32 0.44 0.22 0.32 0.48 0.26 0.42 0.63 0.21 0.17 0.1917000 0.26 0.39 0.53 0.26 0.39 0.58 0.30 0.50 0.75 0.28 0.21 0.23
035
10000 0.13 0.19 0.26 0.13 0.19 0.28 0.15 0.25 0.38 0.09 0.09 0.1213400 0.17 0.26 0.35 0.17 0.25 0.38 0.20 0.33 0.50 0.15 0.12 0.1616700 0.21 0.32 0.43 0.21 0.32 0.47 0.25 0.41 0.62 0.20 0.16 0.1920000 0.26 0.38 0.52 0.26 0.38 0.56 0.30 0.49 0.74 0.27 0.21 0.22
045
13000 0.14 0.19 0.27 0.14 0.20 0.31 0.16 0.26 0.40 0.10 0.09 0.1317500 0.19 0.27 0.37 0.18 0.26 0.40 0.21 0.35 0.52 0.16 0.13 0.1622000 0.24 0.32 0.46 0.23 0.34 0.50 0.27 0.43 0.65 0.23 0.19 0.2126000 0.28 0.40 0.55 0.27 0.41 0.60 0.31 0.51 0.79 0.29 0.22 0.23
055
17000 0.15 0.20 0.28 0.13 0.20 0.30 0.17 0.27 0.41 0.11 0.10 0.1322000 0.18 0.28 0.38 0.19 0.27 0.41 0.22 0.34 0.53 0.17 0.12 0.1627000 0.23 0.33 0.45 0.24 0.35 0.51 0.26 0.43 0.67 0.24 0.17 0.2132000 0.28 0.41 0.57 0.28 0.40 0.61 0.30 0.52 0.78 0.30 0.23 0.24
Cat 570 25
Figure 5: Coil air pressure drop — HI-F5 fin type (2 thru 12 rows)
Notes:The letters A,B,C,D or E following the face velocity indicate the degree of wetness at which the coil would be operating. Dry coils are shown by the letter A, wet coils by the letter E. Intermediate conditions are shown by the letters B, C and D.Air pressure drop for odd fin spacings may be found by interpolation.
2 3 4 5 6 8 10 12ROWSROWS
1.0
2.0 2.5
1.4
1.8
2.0
1.6
1.2.801.8
1.6
1.01.4
1.4
1.2
1.0.80.60.40
1.2.90.60
.80.50
.70 .90
.90.70.50 .80
.60.30.70
.40.50
.60
.50.40.30.20
.25.40
.30.15
.20.25
.30
.25.20.15.10
.20.08.15
.10.15.09.06
.08
.07
1.0
.05 .10
.09
.10.08.06.04
.09
1412
10
08
06
14121008
06
3.0 4.0 5.0 6.0
5.04.02.53.0
2.0 2.5 4.03.6
3.2
2.8
2.4
2.0
1.8
1.6
1.41.2
1.0
.80
.60
.50
.40
.30
.20
3.0
2.5
2.0
1.8
1.6
1.4
1.0 1.2
.90
.80
.70
.60
.50
.40
.30
.25
.20
2.01.8
1.6
1.4
1.2
1.0
.90
.80
.70
.60
.50
.40
.30
.25
.20
.15
1.8
1.6
1.4
1.2
1.0
.90
.80
.70
.60
.50
.40
.30
.25
.20
.15
.10E
D
C
B
A
E
D
C
B
AFACE VELOCITY, FPM
200 250 300 400 500 600 700 800
AIR
PR
ESSU
RE
DR
OP,
INC
HES
IN W
ATER
FIN
SER
IES
FIN
SER
IES
SHRDEGREE
OFWETNESS
ABCDE
MAX. FACE VEL.Without Water Blowoff(Does not apply to A)
1.0 - .98.98 - .92.92 - .86.86 - .80
.80 or Less
26 Cat 570
Figure 6: Coil air pressure drop — E-F5 fin type (2-12 rows)
Notes: The letters A,B,C,D or E following the face velocity indicate the degree of wetness at which the coil would be operating. Dry coils are shown by the letter A, wet coils by the letter E. Intermediate conditions are shown by the letters B, C and D.Air pressure drop for odd fin spacings may be found by interpolation.
2 3ROWS
14
12
10
08
06
2.0
E
D
C
B
A
FACE VELOCITY, FPM200 250 300 400 500 600 700 800
AIR
PR
ESSU
RE
DR
OP,
INC
HES
IN W
ATER
FIN
SER
IES
SHRDEGREE
OFWETNESS
1.0 - .98.98 - .92.92 - .86.86 - .80
.80 or Less
ABCDE
MAX. FACE VEL.Without Water Blowoff(Does not apply to A)
E
D
C
B
A350
4 5 6 8 10 12ROWS
141210
08
06
FIN
SER
IES
1.5 3.0
2.0 4.01.5 3.0
1.0 1.5 2.0 3.0
.80 1.0 2.01.5
2.01.0.80.60
.801.5
1.6.50 1.0.60
.40 .50 .60 .80 1.0 1.2
.50 1.0.40 .80
.30 .60.40 .80
.30 .60.50
.20 .30 .40 .50 .60
.20 .40.15 .30
.20 .40.15 .30
.10 .15 .20 .30
.08 .10 .20.15
.10 .20.08
.06 .15
.08 .16.05
.06.10
.05.04 .06 .08 .10 .12
.80
1.0.60
.80.50
.40 .60
.50.30
.40
.20 .30
.15.20
.15.10
.08
.10.06
.08.05
.04 .06
.05
.04
.03
.03.02
Cat 570 27
FIN
SER
IES
Figure 7: Coil air pressure drop — HI-F5 fin type
NOTE: Air pressure drop for odd fin spacings may be found by interpolation.
Figure 8: Coil air pressure drop — E-F5 fin type
HI-F5
300
.07
.15
.20
.25
.30
.60
1.51.5
3.03.0
1ROW
2ROW
.10
400 500 600 700 800 1000 1500STANDARD AIR FACE VELOCITY - FT/MIN
AIR
PR
ESSU
RE
DR
OP
- IN
CH
ES O
F W
ATER
2.52.5
2.02.0
.90.901.01.0
.80
.40
.09
.08
.50
.03
.04
.05
.06
.07
.08
.09.10
.15.15
.20.20
.25.25
.30.30
.40.40
.50.50
.60.60
.70.70
.80.80
.90.90
1.01.0
1.51.5
14
06
081012
FIN
SER
IES
.70
E-F5
300
.07
.15
.20
.25
.30
.60
.70
1.5
3.0
1ROW
2ROW
.10
400 500 600 700 800 1000 1500STANDARD AIR FACE VELOCITY - FT/MIN
AIR
PR
ESSU
RE
DR
OP
- IN
CH
ES O
F W
ATER
2.5
2.0
.901.0
.80
.40
.09
.08
.50
14
06
08
1012
.20
.25
.30
.40
.50
.60
.70
.80
.90
1.0
1.5
.10
.09
.08
.07
.06
.05
.04
.03
.15
28 Cat 570
Figure 9: 1” Steam coil air pressure drop
NOTE: Air pressure drop for odd fin spacings may be found by interpolation.
HI-F8
300 400 500 600 700 800 1000 1500STANDARD AIR FACE VELOCITY - FT/MIN
1ROW
AIR
PR
ESSU
RE
DR
OP
- IN
CH
ES O
F W
ATER
.03
.025
.02
.04
.05
.06
.07
.08
.09.10
.15
.20
.25
.30
.40
.50
.60
.70
.80
.90
1.0
1.5
2.0
03
04
06
08
10
12
14
FIN
SER
IES
Cat 570 29
Component and section weights
Table 5: Unit coil weights
NOTES:1 & 2 row (unit sizes 003-055) based on large face area 5WQ & 5WH coils with 8 FPI and standard fin, tube and casing materials.3-row and greater (unit sizes 003-055) based on large face area 5W* or 5E* coils with 8 FPI and standard fin, tube and casing materials.Staggered coils are not available in 10 and 12-row coils.
Table 6: Curb-ready base rail weights
UNIT SIZE 003 004 006 008 010 012 014
ROWS lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg
1 18 8 23 10 29 13 36 16 43 20 53 24 60 27
2 26 12 33 15 43 20 54 24 66 30 83 38 92 42
3 37 17 47 21 63 29 81 37 99 45 122 55 139 63
4 46 21 58 26 78 36 101 46 123 56 151 69 172 78
5 55 25 70 32 94 43 120 55 147 67 181 82 206 93
6 64 29 81 37 109 49 140 64 171 78 210 95 239 108
8 82 37 104 47 140 63 179 81 219 99 269 122 306 139
10 100 45 126 57 170 77 218 99 267 121 328 149 373 169
12 118 53 149 68 201 91 258 117 315 143 386 175 440 200
UNIT SIZE 017 021 025 030 035 045 055
ROWS lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg
1 67 30 78 35 108 49 123 56 143 65 184 83 240 109
2 107 49 125 57 166 75 189 86 222 101 302 137 396 180
3 161 73 207 94 247 112 291 132 339 154 481 218 645 293
4 200 91 257 117 306 139 361 164 420 191 597 271 801 363
5 239 108 307 139 366 166 432 196 502 228 714 324 957 434
6 278 126 357 162 425 193 502 228 584 265 830 376 1112 504
8 356 161 457 207 544 247 643 292 748 339 1062 482 1421 646
10 434 197 557 253 663 301 783 355 911 413 1294 587 1735 787
12 512 232 657 298 782 355 924 419 1075 488 1527 693 2046 928
6" CURB READY BASE RAIL WEIGHTS
STANDARD UNIT NOMINAL SIZE
003 004 006 008 010 012 014
lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg
24" of unit length 69 31 71 32 84 38 91 41 97 44 99 45 107 48
each additional 12" of length 38 17 39 18 46 21 50 23 54 24 55 25 59 27
6" CURB READY BASE RAIL WEIGHTS
(continued)
STANDARD UNIT NOMINAL SIZE
017 021 025 030 035 045 055
lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg lbs. kg
24" of unit length 114 51 116 52 130 59 156 70 170 77 179 81 179 81
each additional 12" of length 63 28 64 29 76 34 86 39 94 42 98 44 98 44
30 Cat 570
Table 7: Weights for single speed and dual speed motors
*Data included reflects the largest NEMA frame and/or the heaviest motor weight per motor HP.
Motor RPM Motor HP 1/4 1/3 1/3 3/8 1 1-1/2 2 3 5 7-1/2 10 15 20 25 30 40 50 60 75
900 RPM
NEMA frame — — — — 182T 184T 213T 215T 254T 256T 284T 286T 324T 326T 364T 365T 404T 405T 444T
Motor weight (Ibs.) — — — — 56 64 94 111 150 207 300 300 385 415 580 580 750 800 1100
Motor weight (kg) — — — — 25 29 43 50 68 94 136 136 175 189 349 264 461 364 500
1200 RPM
NEMA frame — — — — 145T 182T 184T 213T 215T 256T 256T 284T 286T 324T 326T 365T 365T 404T 405T
Motor weight (Ibs.) — — — — 44 66 85 114 145 224 248 330 377 450 487 703 720 1153 1200
Motor weight (kg) — — — — 20 30 39 52 66 102 113 150 153 205 221 320 327 524 545
1800 RPM
NEMA frame 48 48 56 56 143T 145T 145T 182T 184T 213T 215T 254T 256T 284T 286T 324T 326T 364T 365T
Motor weight (Ibs.) 19 24 35 35 44 54 54 84 100 139 165 242 273 351 432 531 592 714 895
Motor weight (kg) 9 11 16 16 20 24 24 38 45 63 75 110 124 159 196 241 269 324 406
3600 RPM
NEMA frame — — — — 56T 143T 145T 145T 182T 184T 213T 215T 254T 256T 284TS 286TS 324TS 326TS 405TS
Motor weight (Ibs.) — — — — 32 40 40 50 76 91 110 147 182 223 359 369 447 558 713
Motor weight (kg) — — — — 15 18 18 23 35 41 50 67 83 101 163 168 203 254 324
1800/900 RPM
NEMA frame — — — — 143 145 145 182 184 213 215 256 256 286 286 324 326 — —
Motor weight (Ibs.) — — — — 25 28 31 63 72 104 130 244 232 250 275 350 390 — —
Motor weight (kg) — — — — 11 13 14 29 33 47 59 111 105 114 125 159 177 — —
1800/1200 RPM
NEMA frame — — — — 145 182 182 184 215 256 256 284 286 286 286 — — — —
Motor weight (Ibs.) — — — — 30 56 65 73 113 211 237 318 348 349 295 — — — —
Motor weight (kg) — — — — 14 25 30 33 51 96 108 145 158 159 134 — — — —
Cat 570 31
Fan dataTable 8: Physical data - forward curved & airfoil housed fans - Unit sizes 003 - 055
Figure 10: Torque for FC variable inlet vanes (in.-lb.) Unit sizes 003-055
Figure 11: Torque for AF variable inlet vanes (in.-lb.)Unit sizes 003-055
NOTE: Inlet vanes on fans 30HP or more are not acceptable per ASHRAE 90.1-1999.
Forward Curved - English UnitsDiameter Class I (inches) 9 x 4 9 x 7 9 x 9 10.62 12.62 15 18 20 22.25 24.5Maximum rpm N/A 2189 2223 1934 1614 1328 1155 1050 944 858Shaft & bearing diameter (inches) N/A 1 1 1 1 1.188 1.188 1.938 2.1875 2.1875Outlet area (square feet) N/A 0.65 0.84 1.04 1.46 2.05 2.87 5.18 6.27 7.63Diameter Class Il (inches) 9 x 4 9 x 7 9 x 9 10.62 12.62 15 18 20 22.25 24.5Maximum rpm 2244 2854 2896 2518 2091 1725 1450 1200 1030 910Shaft & bearing diameter (inches) 1 1 1 1 1.188 1.188 1.938 2.188 2.4375 2.4375Outlet area (square feet) 0.48 0.65 0.84 1.04 1.46 2.05 2.87 5.18 6.27 7.63Forward Curved - SI Units
Diameter Class I (millimeters) 229 x 102 229 x178 229 x 229 270 321 381 457 508 565 622
Maximum rpm N/A 2189 2223 1934 1614 1328 1155 1050 944 858
Shaft & bearing diameter (millimeters) N/A 25 25 25 25 30 30 49 56 56
Outlet area (square meters) N/A 0.060 0.078 0.097 0.136 0.190 0.267 0.481 0.58 0.71
Diameter Class II (millimeters) 229 x 102 229 x178 229 x 229 270 321 381 457 508 565 622
Maximum rpm 2244 2854 2896 2518 2091 1725 1450 1432 944 858
Shaft & bearing diameter (millimeters) 25 25 25 25 30 30 49 56 62 62
Outlet area (square meters) 0.045 0.060 0.078 0.097 0.136 0.190 0.267 0.481 0.58 0.71Airfoil - English Units
Diameter Class I (inches) 13.22 14.56 16.19 19.69 21.56 24Maximum rpm 3000 3000 2300 2000 1700 1500Shaft & bearing diameter (inches) 1.188 1.438 1.438 1.938 1.938 2.1875Outlet area (square feet) 2.11 2.85 3.52 4.68 5.82 7.01Diameter Class II (inches) 13.22 14.56 16.19 19.69 21.56 24Maximum rpm 4335 3918 3457 2858 2547 2255Shaft & bearing diameter (inches) 1.438 1.688 1.688 2.188 2.438 2.4375Outlet area (square feet) 2.11 2.85 3.52 4.68 5.82 7.01Airfoil - SI Units
Diameter Class I (millimeters) 336 370 411 500 548 610
Maximum rpm 3000 3000 2300 2000 1700 1500
Shaft & bearing diameter (millimeters) 30 37 37 49 49 56
Outlet area (square meters) 0.196 0.265 0.327 0.435 0.541 0.65
Diameter Class II (millimeters) 336 370 411 500 548 610
Maximum rpm 4335 3918 3457 2858 2547 2547
Shaft & bearing diameter (millimeters) 37 43 43 56 62 62
Outlet area (square meters) 0.196 0.265 0.327 0.435 0.541 0.65
FC24.50
300
250
200
150
10090807060
50
Torq
ue (i
n.-lb
.)
Fan Speed (rpm)
800
850
900
1000
1500
200040
0
500
600
700
350
450
550
650
750
FC22.25
FC20.00
FC18.00
FC15.00
FC12.62
Fan Speed (rpm)
750
800
850
900
1000
1500
2000
2500
3000
3500
4500
4000
500400350300250
200
150
1009080706050403530
AF13.22
AF24.00
AF21.56
AF19.69
AF16.19
AF14.56
Torq
ue (i
n.-lb
.)
32 Cat 570
Table 9: Physical data - belt drive & direct drive plenum fans
Figure 12: Torque for Inlet Vane at 100% WOV (lb.-in.) for SWSI plenum fans with nested inlet vanes
NOTE: Inlet vanes on fans 30HP or more are not acceptable per ASHRAE 90.1-1999.
Plenum — English UnitsDiameter Class I (inches) 13.5 15 16.5 18.25 20 22.25 24.5 27 30 33 36.5 40.25Maximum rpm 2895 2589 2376 2256 2077 1875 1691 1479 1328 1209 1073 972Shaft & bearing diameter (inches) 1 1 1 1.188 1.188 1.188 1.438 1.688 1.688 1.688 1.688 1.938Outlet area (square feet) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/ADiameter Class Il (inches) 13.5 15 16.5 18.25 20 22.25 24.5 27 30 33 36.5 40.25Maximum rpm 3786 3384 3100 2959 2703 2413 2199 1928 1730 1579 1401 1264Shaft & bearing diameter (inches) 1.188 1.188 1.438 1.688 1.688 1.688 1.688 1.688 1.938 1.938 1.938 2.188Outlet area (square feet) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/APlenum — SI UnitsDiameter Class I (millimeters) 343 381 419 464 508 565 622 686 762 838 927 1022Maximum rpm 2895 2589 2376 2256 2077 1875 1691 1479 1328 1209 1073 972Shaft & bearing diameter (millimeters) 25.4 25.4 25.4 30.2 30.2 30.2 36.5 42.9 42.9 42.9 42.9 49.2Outlet area (square meters) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/ADiameter Class II (millimeters) 343 381 419 464 508 565 622 686 762 838 927 1022Maximum rpm 3786 3384 3100 2959 2703 2413 2199 1928 1730 1579 1401 1264Shaft & bearing diameter (millimeters) 30 30. 37 42 42 42 42 42 49 49 49 56Outlet area (square meters) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
600
700
600
500
400
100
900
300
200
Torq
ue (l
b./in
.)
Fan Speed (rpm)
800
900
1000
1500
2000
400
500
600
700
300
200
3000
800
1000
2000
3000
4000
5000
542
490
445
402
365
330
300
270
245
Cat 570 33
Table 10: Physical data - inline fans
Table 11: Physical data - twin fans
Inline Fans — English UnitsFan diameter size, Class I (inches) 150 165 182 200 222 245 270 300Maximum rpm 2727 2488 2236 2041 1835 1665 1476 1330Shaft & bearing diameter (inches) 1.438 1.438 1.438 1.438 1.438 1.438 1.688 1.938Outlet area (square feet) 2.24 2.72 3.32 4.00 4.93 5.98 7.27 8.97Fan diameter size, Class Il (inches) 150 165 182 200 222 245 270 300Maximum rpm 3409 3111 2796 2551 2294 2082 1846 1662Shaft & bearing diameter (inches) 1.438 1.438 1.438 1.688 1.688 1.688 1.938 2.188Outlet area (square feet) 2.24 2.72 3.32 4.00 4.93 5.98 7.27 8.97Inline Fans — SI UnitsFan diameter size, Class I (millimeters) 150 165 182 200 222 245 270 300Maximum rpm 2727 2488 2236 2041 1835 1665 1476 1330Shaft & bearing diameter (millimeters) 36.5 36.5 36.5 36.5 36.5 36.5 42.9 49.2Outlet area (square meters) 0.21 0.25 0.31 0.37 0.46 0.56 0.68 0.83Diameter Class II (millimeters) 150 165 182 200 222 245 270 300Maximum rpm 3409 3111 2796 2551 2294 2082 1846 1662Shaft & bearing diameter (millimeters) 36.5 36.5 36.5 42.9 42.9 42.9 49.2 55.6Outlet area (square meters) 0.21 0.25 0.31 0.37 0.46 0.56 0.68 0.83
Twin Fans — English UnitsDiameter Class I (inches) 9.5 10.62 12.62 15 18.12 20Maximum rpm 2400 2000 1600 1400 1200 1000Shaft & bearing diameter (inches) 1.438 1.438 1.688 2.188 2.438 2.688Outlet area (square feet) 2.57 3.13 4.36 6.15 8.55 10.91Twin Fans — SI UnitsDiameter Class I (millimeters) 241 270 321 381 460 508Maximum rpm 2575 2400 2000 1700 1400 1200Shaft & bearing diameter (millimeters) 36.5 36.5 42.9 55.6 61.9 68.3Outlet area (square meters) 0.23 0.29 0.40 0.56 0.77 1.00
34 Cat 570
Coil dataTable 12: Unit coil dimensional data — English units of measure
Coil section depth limitation by number of rows in coil for single banks of coils (excludes staggered coils)Section depth Maximum number of rows12" 2 row water or steam14" 4 row water (except 5WM & 5WD)16" 4 row 5WM & 5WD waterCooling only section (no moisture eliminator)Section depth Maximum number of rows18" 4 row DX or water (except 5WM & 5WD)24" 8 row DX or water30” 10 row DX or 12 water
Combination cooling and 1 or 2 row reheat (no moisture eliminator)Section depth Maximum number of rows24" 6 row water or DX30" 10 row water or DX36" 12 row water
NOTES:The spacing between coil casings is a minimum of 4". If more access between coils is required, increase the section depth. Cooling coil sections are avail-able in section depths of 18", 24", 30", 36", 42", 48", 54". If a moisture eliminator is required, use the next larger section size.
STANDARD CHILLED WATER, DX, or 3 & 4 ROW HEATING COILS(English Units — inches and square feet)
CLEANABLE COILS OR 1 & 2 ROW HEATING COILS(English Units — inches and square feet)
Unit Size Stagg./ Large Large Stagg./
Medium Medium Small Stagg./ Large Large Stagg./
Medium Medium Small
003FH x FL — 18 x 25 — 12 x 25 — FH x FL — 18 x 22 — 12 x 22 —
Face Area — 3.1 — 2.1 — Face Area — 2.8 — 1.8 —
004FH x FL — 21 x 27 — 18 x 27 12 x 27 FH x FL — 21 x 24 — 18 x 24 12 x 24
Face Area — 3.9 — 3.4 2.3 Face Area — 3.5 — 3 2
006FH x FL — 21 x 39 — 18 x 39 12 x 39 FH x FL — 21 x 36 — 18 x 36 12 x 36
Face Area — 5.7 — 4.9 3.3 Face Area — 5.3 — 4.5 3
008FH x FL — 24 x 45 — 18 x 45 15 x 45 FH x FL — 24 x 42 — 18 x 42 15 x 42
Face Area — 7.5 — 5.6 4.7 Face Area — 7 — 5.3 4.4
010FH x FL — 27 x 51 — 21 x 51 18 x 51 FH x FL — 27 x 48 — 21 x 48 18 x 48
Face Area — 9.6 — 7.4 6.4 Face Area — 9 — 7 6
012FH x FL — 33 x 53 — 24 x 53 21 x 53 FH x FL — 33 x 50 — 24 x 50 21 x 50
Face Area — 12.1 — 8.8 7.7 Face Area — 11.5 — 8.3 7.3
014FH x FL — 33 x 61 — 27 x 61 21 x 61 FH x FL — 33 x 58 — 27 x 58 21 x 58
Face Area — 14 — 11.4 8.9 Face Area — 13.3 — 10.9 8.5
017FH x FL — 36 x 67 — 27 x 67 24 x 67 FH x FL — 36 x 64 — 27 x 64 24 x 64
Face Area — 16.8 — 12.6 11.2 Face Area — 16 — 12 10.7
021FH x FL — 42 x 69 — 33 x 69 30 x 69 FH x FL — 42 x 66 — 33 x 66 30 x 66
Face Area — 20.1 — 15.8 14.4 Face Area — 19.3 — 15.1 13.8
025
FH x FL — 48 x 73 — 36 x 73 33 x 73 FH x FL — — 42 x 70 36 x 70 33 x 70
Face Area — 24.3 — 18.2 16.7 Face Area — — 20.4 17.5 16
FH x FL (2) 27 x 73 (2) 24 x 73 (2) 21 x 73 — — FH x FL (2) 27 x 70 (2) 24 x 70 — — —
Face Area 27.4 24.3 21.3 — — Face Area 26.2 23.3 — — —
030
FH x FL 48 x 85 — 36 x 85 33 x 85 FH x FL — — 42 x 82 36 x 82 33 x 82
Face Area 28.3 — 21.2 19.5 Face Area — — 23.9 20.5 18.8
FH x FL (2) 27 x 85 (2) 24 x 85 (2)21 x 85 — — FH x FL (2) 27 x 82 (2) 24 x 82 — — —
Face Area 31.9 28.3 24.8 — — Face Area 30.8 27.3 — — —
035
FH x FL 54 x 89 — 42 x 89 39 x 89 FH x FL — — — 42 x 86 39 x 86
Face Area 33.4 — 24.1 22.3 Face Area — — — 23.3 21.5
FH x FL (2) 30 x 89 (2) 27 x 89 (2)24 x 89 — — FH x FL (2) 30 x 86 (2) 27 x 86 (2)24 x 86 — —
Face Area 37.1 33.4 29.7 — — Face Area 35.8 32.3 28.7 — —
045
FH x FL — — — 48 x 93 — FH x FL — — — — —
Face Area — — — 31 — Face Area — — — — —
FH x FL (2) 39 x 93 (2) 33 x 93 (2) 27 x 93 (2) 24 x 93 — FH x FL (2) 39 x 90 (2) 33 x 90 (2) 27 x 90 (2) 24 x 90 —
Face Area 50.4 42.6 34.9 31.0 — Face Area 48.8 41.3 33.8 30.0 —
055
FH x FL (2) 45 x 93 — — — — FH x FL — — — — —
Face Area 58.1 — — — — Face Area — — — — —
FH x FL — (2) 39 x 93 (2) 36 x 93 (2) 30 x 93 — FH x FL — (2) 39 x 90 (2) 36 x 90 (2) 30 x 90 —
Face Area — 50.4 46.5 38.8 — Face Area — 48.8 45.0 37.5 —
Cat 570 35
Table 13: Unit coil dimensional data — SI units of measure
Coil section depth limitation by number of rows in coil for single banks of coils (excludes staggered coils)Section depth Maximum number of rows305 mm 2 row water or steam356 mm 4 row water (except 5WM & 5WD)406 mm 4 row 5WM & 5WD waterCooling only section (no moisture eliminator)Section depth Maximum number of rows457 mm 4 row DX or water (except 5WM & 5WD)610 mm 8 row DX or water762 mm 10 row DX or 12 water
Combination cooling and 1 or 2 row reheat (no moisture eliminator)Section depth Maximum number of rows610 mm 6 row water or DX762 mm 10 row water or DX914 mm 12 row water
NOTES:The spacing between coil casings is a minimum of 102 mm. If more access between coils is required, increase the section depth. Cooling coil sections are avail-able in section depths of 457 mm, 610 mm, 762 mm, 914 mm, 1067 mm, 1219 mm, 1372 mm. If a moisture eliminator is required, use the next larger section size.
STANDARD CHILLED WATER, DX, or 3 & 4 ROW HEATING COILS(SI Units — millimeters and square meters)
CLEANABLE COILS OR 1 & 2 ROW HEATING COILS(SI Units — millimeters and square meters)
Unit Size
Stagg./ Large Large Stagg./
Medium Medium Small Stagg./ Large Large Stagg./
Medium Medium Small
003FH x FL — 457 x 635 — 305 x 635 — FH x FL — 457 x 559 — 305 x 559 —
Face Area — 0.29 — 0.20 — Face Area — 0.26 — 0.17 —
004FH x FL — 533 x 686 — 457 x 686 305 x 686 FH x FL — 533 x 610 — 457 x 607 305 x 610
Face Area — 0.36 — 0.32 0.21 Face Area — 0.33 — 0.28 0.19
006FH x FL — 533 x 991 — 457 x 991 305 x 991 FH x FL — 533 x 914 — 457 x 914 305 x 914
Face Area — 0.53 — 0.46 0.31 Face Area — 0.49 — 0.42 0.28
008FH x FL — 610 x 1143 — 457 x 1143 381 x 1143 FH x FL — 610 x 1067 — 457 x 1067 381 x 1067
Face Area — 0.70 — 0.52 0.44 Face Area — 0.65 — 0.49 0.41
010FH x FL — 686 x 1295 — 533 x 1295 457 x 1295 FH x FL — 686 x 1219 — 533 x 1219 457 x 1219
Face Area — 0.89 — 0.69 0.59 Face Area — 0.84 — 0.65 0.56
012FH x FL — 838 x 1346 — 610 x 1346 533 x 1346 FH x FL — 838 x 1270 — 610 x 1270 533 x 1270
Face Area — 1.12 — 0.82 0.72 Face Area — 1.07 — 0.77 0.68
014FH x FL — 838 x 1549 — 686 x 1549 533 x 1549 FH x FL — 838 x 1473 — 686 x 1473 533 x 1473
Face Area — 1.30 — 1.06 0.83 Face Area — 1.24 — 1.01 0.79
017FH x FL — 914 x 1702 — 686 x 1702 610 x 1702 FH x FL — 914 x 1626 — 686 x 1626 610 x 1676
Face Area — 1.56 — 1.17 1.04 Face Area — 1.49 — 1.11 0.99
021FH x FL — 1067 x 1753 — 838 x 1753 762 x 1753 FH x FL — 1067 x 1676 — 838 x 1676 762 x 1676
Face Area — 1.87 — 1.47 1.34 Face Area — 1.79 — 1.40 1.28
025
FH x FL — 1219 x 1854 — 914 x 1854 838 x 1854 FH x FL — — 1067 x 1778 914 x 1778 838 x 1778
Face Area — 2.26 — 1.89 1.55 Face Area — — 1.89 1.63 1.49
FH x FL (2)686 x 1854
(2)610 x 1854
(2)533 x 1854 — — FH x FL (2)
686 x 1778(2)
610 x 1778 — — —
Face Area 2.55 2.60 1.98 — — Face Area 2.43 2.16 — — —
030
FH x FL — 1219 x 2159 — 914 x 2159 838 x 2159 FH x FL — — 1067 x 2083 914 x 2083 838 x 2083
Face Area — 2.63 — 1.97 1.81 Face Area — — 2.22 1.90 1.75
FH x FL (2)686 x 2159
(2)610 x 2159
(2)533 x 2159 — — FH x FL (2)
686 x 2083(2)
610 x 2083 — — —
Face Area 3.45 2.63 2.30 — — Face Area 2.86 2.54 — — —
035
FH x FL — 1372 x 2261 — 991 x 2261 914 x 2261 FH x FL — — — 1067 x 2184 991 x 2184
Face Area — 3.10 — 2.24 2.07 Face Area — — — 2.33 2.16
FH x FL (2) 762 x 2261
(2)686 x 2261
(2)607 x 2261 — — FH x FL (2)
762 x 2184(2)
686 x 2184(2)
610 x 2184 — —
Face Area 3.46 3.10 2.76 — — Face Area 3.33 3.00 2.66 — —
045
FH x FL — — — 1219 x 2362 — FH x FL — — — — —
Face Area — — — 2.88 — Face Area — — — — —
FH x FL (2) 991 x 2362
(2) 838 x 2362
(2) 686 x 2362
(2) 610 x 2362 — FH x FL (2)
991 x 2286(2)
838 x 2286(2)
686 x 2286(2)
610 x 2286 —
Face Area 4.67 3.96 3.24 2.88 — Face Area 4.53 3.83 3.14 2.79 —
055
FH x FL (2) 1143 x 2362 — — — — FH x FL — — — — —
Face Area 5.39 — — — — Face Area — — — — —
FH x FL — (2) 991 x 2362
(2) 914 x 2362
(2) 762 x 2362 — FH x FL — (2)
991 x 2286(2)
914 x 2286(2)
762 x 2286 —
Face Area — 4.67 4.32 3.60 — Face Area — 4.53 4.18 3.48 —
36 Cat 570
Side load filter data
Table 14: Size and quantity of filters used per unit size
NOTE: Number of filters used per flat panel, 2" angular, and 4" angular filter section is based on Pleated (30%).
UNIT SIZE
FILTER SIZE
(Inches)
NUMBER OF FILTERS USED PER FILTER SECTIONUNIT SIZE
FILTER SIZE
(Inches)
NUMBER OF FILTERS USED PER FILTER SECTION
Flat Panel
2" Angular
4" Angular
Varicel SH
Varicel II MH
Varicel V
DriPak 2000
Flat Panel
2" Angular
4" Angular
Varicel SH
Varicel II MH
Varicel V
DriPak 2000
003
12 X 24 2
017
12 X 24 3 3
20 X 20 20 X 20
20 X 24 2 20 X 24 6 6
24 X 12 N/A 24 X 12
24 X 20 1 1 1 1 1 24 X 20 6 6 6 6 6
24 X 24 24 X 24 3 3
004
12 X 24 1 2 1 1 1 1
021
12 X 24
20 X 20 20 X 20 4 4 4 4
20 X 24 20 X 24 4 12 12 4 4 4
24 X 12 N/A 24 X 12
24 X 20 24 X 20 3
24 X 24 1 2 1 1 1 1 24 X 24 3
006
12 X 24
025
12 X 24 2 2 2 2
20 X 20 20 X 20
20 X 24 20 X 24 6 9 9
24 X 12 N/A 24 X 12
24 X 20 24 X 20
24 X 24 2 4 2 2 2 2 24 X 24 2 3 3 6 6 6 6
008
12 X 24 1 2 2 1 1 1 1
030
12 X 24
20 X 20 20 X 20
20 X 24 1 2 2 2 2 2 2 20 X 24
24 X 12 24 X 12 4 4 4 4 4
24 X 20 24 X 20 8 8 8 8 8
24 X 24 1 2 2 24 X 24 12 12
010
12 X 24
035
12 X 24
20 X 20 20 X 20 15 15 15 15
20 X 24 6 6 20 X 24 20 20
24 X 12 2 2 2 2 2 24 X 12
24 X 20 2 2 2 2 2 24 X 20 12
24 X 24 24 X 24
012
12 X 24 1 1 1 1 1
045
12 X 24 4 4 3
20 X 20 20 X 20
20 X 24 6 4 20 X 24 12 4 4 3 12 12 12
24 X 12 2 2 2 2 2 24 X 12
24 X 20 24 X 20
24 X 24 2 3 2 2 2 2 2 24 X 24 3 12 12 9 3 3 3
014
12 X 24
055
12 X 24 3
20 X 20 20 X 20 12 15 12 12
20 X 24 1 1 1 1 20 X 24 4 20 20 5 4 3 4
24 X 12 3 2 2 2 2 24 X 12 3
24 X 20 24 X 20 3 3 3
24 X 24 3 9 6 2 2 2 2 24 X 24 1 5 5 1 9 1
Cat 570 37
Dimensional dataTop horizontal housed fan discharge
* Not available with vanes.** These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
2.00"
3.00"
1" Flange
Airflow
2.00"
2.00"
1" Flange
Plan
Elevation 1.25 MPT
3.06"
A
H (Minimum Value)
F
C/2C
G
E
B
FAN DIA.(Inches) E F FAN DIA.
(inches) E F
FC in. mm in. mm Airfoil in. mm in. mm9x4 11.05 281 7.61 193 13.22 16.68 424 19.94 5069x7 11.05 281 9.99 254 14.56 20.18 513 22.00 5599x9 11.05 281 12.61 320 16.19 22.37 568 24.31 617
10.62 12.18 309 13.92 354 19.69 24.13 613 29.70 75412.62 14.24 362 16.42 417 21.56 27.27 693 32.45 824
15 16.68 424 19.42 493 24 29.51 750 35.95 91318 19.68 500 22.68 57620 27.27 693 28.98 736
22.25 29.51 750 32.23 81924.5 32.51 826 35.45 900
Note:
The H dimension shown is the minimum value. This dimension will vary with the motor size used.
UNIT SIZE (fan diameter)A** B** C G H (min.)
in. mm in. mm in. mm in. mm in. mm003 (9 x 4,9 x 7 FC)* 38.00 965 28.00 711 32.00 813 9.93 252 8.18 208004 (9 x 9 FC)* 40.00 1016 32.00 813 32.00 813 9.93 252 8.18 208006 (9 x 7, 9 x 9 FC)* 52.00 1321 32.00 813 32.00 813 9.93 252 8.18 208006 (10.62 FC)* 52.00 1321 32.00 813 36.00 914 12.74 324 9.43 240008 (12.62 FC) 58.00 1473 34.00 864 40.00 1016 14.61 371 10.83 275008 (13.22 AF) 58.00 1473 34.00 864 40.00 1016 13.88 353 11.25 286010 (15 FC) 64.00 1626 38.00 965 42.00 1067 15.55 395 12.50 318010 (13.22 AF) 64.00 1626 38.00 965 40.00 1016 13.88 353 11.25 286012 (18 FC) 66.00 1676 44.00 1118 46.00 1168 16.80 427 14.62 371012 (16.19 AF) 66.00 1676 44.00 1118 46.00 1168 14.28 363 13.33 339014 (18 FC) 74.00 1880 44.00 1118 46.00 1168 16.80 427 14.62 371014 (16.19 AF) 74.00 1880 44.00 1118 46.00 1168 14.28 363 13.33 339017 (18 FC) 80.00 2032 46.00 1168 46.00 1168 16.80 427 14.62 371017 (19.69 AF) 80.00 2032 46.00 1168 50.00 1270 16.09 409 15.78 401021 (20 FC) 82.00 2083 52.00 1321 52.00 1321 15.82 402 16.00 406021 (21.56 AF) 82.00 2083 52.00 1321 52.00 1321 16.06 408 17.09 434025 (24.50 FC)* 86.00 2184 60.00 1524 60.00 1524 18.63 473 19.15 486025 (24 AF) 86.00 2184 60.00 1524 58.00 1473 17.55 446 18.80 478030 (24.50 FC) 98.00 2489 60.00 1524 60.00 1524 18.63 473 19.15 486030 (24 AF) 98.00 2489 60.00 1524 58.00 1473 17.55 446 18.80 478035 (24.50 FC) 102.00 2591 66.00 1676 60.00 1524 18.63 473 19.15 486035 (24 AF) 102.00 2591 66.00 1676 58.00 1473 17.55 446 18.80 478045 (24.50 FC) 106.00 2692 78.00 1981 60.00 1524 18.63 473 19.15 486045 (24 AF) 106.00 2692 78.00 1981 58.00 1473 17.55 446 18.80 478055 (24.50 FC) 106.00 2692 90.00 2286 60.00 1524 18.63 473 19.15 486055 (24 AF) 106.00 2692 90.00 2286 58.00 1473 17.55 446 18.80 478
38 Cat 570
Bottom horizontal housed fan discharge
* Not available with vanes.** These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
2.00"
3.00"
1" Flange
Plan
A
H (Minimum Value)
F
Airflow
2.00"
2.00"
1" Flange
Elevation 1.25 MPT
3.06"C/2C
G
EB
2.00"
FAN DIA.(inches) E F FAN DIA.
(inches) E F
FC in. mm in. mm Airfoil in. mm in. mm9x4 11.05 281 7.61 193 13.22 16.68 424 19.94 5069x7 11.05 281 9.99 254 14.56 20.18 513 22.00 5599x9 11.05 281 12.61 320 16.19 22.37 568 24.31 617
10.62 12.18 309 13.92 354 19.69 24.13 613 29.70 75412.62 14.24 362 16.42 417 21.56 27.27 693 32.45 824
15 16.68 424 19.42 493 24 29.51 750 35.95 91318 19.68 500 22.68 57620 27.27 693 28.98 736
22.25 29.51 750 32.23 81924.5 32.51 826 35.45 900
Note:
The H dimension shown is the minimum value. This dimension will vary with the motor size used.
UNIT SIZE (fan diameter)A** B** C G H (min.)
in. mm in. mm in. mm in. mm in. mm 003 (9 x 4,9 x 7 FC)* 38.00 965 28.00 711 32.00 813 6.43 163 8.18 208 004 (9 x 9 FC)* 40.00 1016 32.00 813 32.00 813 6.43 163 8.18 208 006 (9 x 7, 9 x 9 FC)* 52.00 1321 32.00 813 32.00 813 6.43 163 8.18 208 006 (10.62 FC)* 52.00 1321 32.00 813 36.00 914 8.50 216 9.43 240 008 (12.62 FC) 58.00 1473 34.00 864 40.00 1016 8.50 216 10.83 275 008 (13.22 AF) 58.00 1473 34.00 864 40.00 1016 8.50 216 11.25 286 010 (15 FC) 64.00 1626 38.00 965 42.00 1067 8.50 216 12.50 318 010 (13.22 AF) 64.00 1626 38.00 965 40.00 1016 8.50 216 11.25 286 012 (18 FC) 66.00 1676 44.00 1118 46.00 1168 8.50 216 14.62 371 012 (16.19 AF) 66.00 1676 44.00 1118 46.00 1168 8.50 216 13.33 339 014 (18 FC) 74.00 1880 44.00 1118 46.00 1168 8.50 216 14.62 371 014 (16.19 AF) 74.00 1880 44.00 1118 46.00 1168 8.50 216 13.33 339 017 (18 FC) 80.00 2032 46.00 1168 46.00 1168 8.50 216 14.62 371 017 (19.69 AF) 80.00 2032 46.00 1168 50.00 1270 8.50 216 15.78 401 021 (20 FC) 82.00 2083 52.00 1321 52.00 1321 8.50 216 16.00 406 021 (21.56 AF) 82.00 2083 52.00 1321 52.00 1321 8.50 216 17.09 434 025 (24.50 FC)* 86.00 2184 60.00 1524 60.00 1524 8.50 216 19.15 486 025 (24 AF) 86.00 2184 60.00 1524 58.00 1473 8.50 216 18.80 478 030 (24.50 FC) 98.00 2489 60.00 1524 60.00 1524 8.50 216 19.15 486 030 (24 AF) 98.00 2489 60.00 1524 58.00 1473 8.50 216 18.80 478 035 (24.50 FC) 102.00 2591 66.00 1676 60.00 1524 8.50 216 19.15 486 035 (24 AF) 102.00 2591 66.00 1676 58.00 1473 8.50 216 18.80 478
045 (24.50 FC) 106.00 2692 78.00 1981 60.00 1524 8.50 216 19.15 486045 (24 AF) 106.00 2692 78.00 1981 58.00 1473 8.50 216 18.80 478055 (24.50 FC) 106.00 2692 90.00 2286 60.00 1524 8.50 216 19.15 486055 (24 AF) 106.00 2692 90.00 2286 58.00 1473 8.50 216 18.80 478
Cat 570 39
Upblast housed fan discharge
* Not available with vanes.** These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
Airflow
Elevation 1.25 MPT
3.06"C/2C
1" FlangeG
2.00"
B
2.00"
3.00"
1" Flange
Plan
A
H (Minimum Value)
F
FAN DIA.(inches) E F FAN DIA.
(inches) E F
FC in. mm in. mm Airfoil in. mm in. mm9x4 11.05 281 7.61 193 13.22 16.68 424 19.94 5069x7 11.05 281 9.99 254 14.56 20.18 513 22.00 5599x9 11.05 281 12.61 320 16.19 22.37 568 24.31 617
10.62 12.18 309 13.92 354 19.69 24.13 613 29.70 75412.62 14.24 362 16.42 417 21.56 27.27 693 32.45 824
15 16.68 424 19.42 493 24 29.51 750 35.95 91318 19.68 500 22.68 57620 27.27 693 28.98 736
22.25 29.51 750 32.23 81924.5 32.51 826 35.45 900
Note:
The H dimension shown is the minimum value. This dimension will vary with the motor size used.
UNIT SIZE (fan diameter)A** B** C G H (min.)
in. mm in. mm in. mm in. mm in. mm003 (9 x 4, 9 x 7 FC)* 38.00 965 28.00 711 32.00 813 8.49 216 8.18 208004 (9 x 7, 9 x 9 FC)* 40.00 1016 32.00 813 32.00 813 8.49 216 8.18 208006 (10.62 FC)* 52.00 1321 32.00 813 36.00 914 12.03 306 9.43 240008 (15 FC) 58.00 1473 32.00 813 42.00 1067 13.76 350 12.50 318008 (13.22 AF) 58.00 1473 34.00 864 40.00 1016 12.30 312 11.25 286010 (18 FC) 64.00 1626 34.00 864 46.00 1168 15.14 385 14.62 371010 (16.19 AF) 64.00 1626 38.00 965 46.00 1168 12.56 319 13.33 339012 (18 FC) 66.00 1676 38.00 965 46.00 1168 15.17 385 14.62 371012 (16.19 AF) 66.00 1676 44.00 1118 46.00 1168 12.56 319 13.33 339014 (20 FC) 74.00 1880 44.00 1118 52.00 1321 14.07 357 16.00 406014 (19.69 AF) 74.00 1880 44.00 1118 50.00 1270 14.54 369 15.78 401017 (20 FC) 80.00 2032 46.00 1168 52.00 1321 14.07 357 16.00 406017 (21.56 AF) 80.00 2032 46.00 1168 52.00 1321 14.16 360 17.09 434021 (20 FC) 82.00 2083 52.00 1321 52.00 1321 14.07 357 16.00 406021 (21.56 AF) 82.00 2083 52.00 1321 52.00 1321 14.16 360 17.09 434025 (24.50 FC)* 86.00 2184 60.00 1524 60.00 1524 16.34 415 19.15 486025 (24 AF) 86.00 2184 60.00 1524 58.00 1473 15.48 393 18.80 478030 (24.50 FC) 98.00 2489 60.00 1524 60.00 1524 16.34 415 19.15 486030 (24 AF) 98.00 2489 60.00 1524 58.00 1473 15.48 393 18.80 478035 (24.50 FC) 102.00 2591 66.00 1676 60.00 1524 16.34 415 19.15 486035 (24 AF) 102.00 2591 66.00 1676 58.00 1473 15.48 393 18.80 478045 (24.50 FC) 106.00 2692 78.00 1981 60.00 1524 16.34 415 19.15 486045 (24 AF) 106.00 2692 78.00 1981 58.00 1473 15.48 393 18.80 478055 (24.50 FC) 106.00 2692 90.00 2286 60.00 1524 16.34 415 19.15 486055 (24 AF) 106.00 2692 90.00 2286 58.00 1473 15.48 393 18.80 478
40 Cat 570
Belt drive plenum fan discharge (Bottom discharge plenum available on curb ready only)
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.
**This value represents the height for an optional top plenum. Additional discharge openings include axial, top and single opening, opposite drive side, bottom single opening, split and removable panels. Use SelectTOOLS Software for more detailed dimensional information.
Height dimension does not include 2” roof cap seam.
B
2.00"
2.00"
Airflow
2.00"C
Elevation3.00" Plan
A
D**
UNIT SIZEA* B* C D**
in. mm in. mm in. mm in. mm010 (13.50 AF) 64.00 1626 38.00 965 32.00 813 16.00 406
010 (15.00 AF) 64.00 1626 38.00 965 34.00 864 16.00 406
012 (18.25 AF) 66.00 1676 44.00 1118 40.00 1016 18.00 457
012 (20.00 AF) 66.00 1676 44.00 1118 42.00 1067 18.00 457
014 (18.25 AF) 74.00 1880 44.00 1118 40.00 1016 18.00 457
014 (20.00 AF) 74.00 1880 44.00 1118 42.00 1067 18.00 457
017 (24.50 AF) 80.00 2032 46.00 1168 46.00 1168 20.00 508
017 (27.00 AF) 80.00 2032 46.00 1168 48.00 1219 20.00 508
021 (27.00 AF) 82.00 2083 52.00 1321 48.00 1219 22.00 559
021 (30.00 AF) 82.00 2083 52.00 1321 52.00 1321 22.00 559
025 (30.00 AF) 86.00 2184 60.00 1524 52.00 1321 24.00 610
025 (33.00 AF) 86.00 2184 60.00 1524 56.00 1422 24.00 610
030 (33.00 AF) 98.00 2489 60.00 1524 56.00 1422 24.00 610
030 (36.50 AF) 98.00 2489 60.00 1524 58.00 1473 24.00 610
035 (36.50 AF) 102.00 2591 66.00 1676 58.00 1473 26.00 660
035 (40.25 AF) 102.00 2591 66.00 1676 62.00 1575 26.00 660
045 (40.25 AF) 106.00 2692 78.00 1981 62.00 1575 — —
045 (44.50 AF) 106.00 2692 78.00 1981 66.00 1676 — —
055 (40.25 AF) 106.00 2692 90.00 2286 62.00 1575 — —
055 (44.50 AF) 106.00 2692 90.00 2286 66.00 1676 — —
Cat 570 41
Direct drive plenum fan discharge(Bottom discharge plenum available on curb ready only)
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.**This value represents the height for an optional top plenum. Additional discharge openings include axial, top and single opening, opposite drive side, bottom single opening,
split and removable panels. Use the SelectTOOLS Software for more detailed dimensional information.Height dimension does not include 2” roof cap seam.
A
B
2.00"
2.00"
Airflow
2.00"
C
Elevation3.00" Plan
2.00"
D **
UNIT SIZEA* B* C D**
in. mm in. mm in. mm in. mm010 (13.50 AF) 64.00 1626 38.00 965 44.00 1118 16.00 406
010 (15.00 AF) 64.00 1626 38.00 965 46.00 1168 16.00 406
012 (16.50 AF) 66.00 1676 44.00 1118 52.00 1321 18.00 457
012 (18.25 AF) 66.00 1676 44.00 1118 54.00 1372 18.00 457
014 (16.50 AF) 74.00 1880 44.00 1118 52.00 1321 18.00 457
014 (18.25 AF) 74.00 1880 44.00 1118 54.00 1372 18.00 457
017 (24.50 AF) 80.00 2032 46.00 1168 60.00 1524 20.00 508
017 (27.00 AF) 80.00 2032 46.00 1168 66.00 1372 20.00 508
021 (27.00 AF) 82.00 2083 52.00 1321 66.00 1372 22.00 559
021 (30.00 AF) 82.00 2083 52.00 1321 68.00 1727 22.00 559
025 (33.00 AF) 86.00 2184 60.00 1524 74.00 1880 24.00 610
025 (36.50 AF) 86.00 2184 60.00 1524 78.00 1981 24.00 610
030 (33.00 AF) 98.00 2489 60.00 1524 74.00 1880 24.00 610
030 (36.50 AF) 98.00 2489 60.00 1524 78.00 1981 24.00 610
035 (36.50 AF) 102.00 2591 66.00 1676 78.00 1981 26.00 660
035 (40.25 AF) 102.00 2591 66.00 1676 84.00 2134 26.00 660
045 (36.50 AF) 106.00 2692 78.00 1981 80.00 2032 — —
045 (40.25 AF) 106.00 2692 78.00 1981 86.00 2184 — —
055 (36.50 AF) 106.00 2692 90.00 2286 80.00 2032 — —
055 (40.25 AF) 106.00 2692 90.00 2286 86.00 2184 — —
42 Cat 570
Inline fan discharge
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.
Height dimension does not include 2” roof cap seam.
A
2.00"
2.00"
Airflow
2.00"
C
Elevation
1.00" Flange
Plan
E
G
1.00" Flange
H(Minimum Value)
F
B
UNIT SIZE A* B* C E F G H (min)
in. mm in. mm in. mm in. mm in. mm in. mm in. mm
012 (150 Inline) 66.00 1676 44.00 1118 42.00 1067 27.80 706 25.80 655 8.10 206 20.10 511
012 (165 Inline) 66.00 1676 44.00 1118 44.00 1118 29.80 757 27.80 706 8.10 206 18.10 460
014 (150 Inline) 74.00 1880 44.00 1118 42.00 1067 27.80 706 25.80 655 8.10 206 24.10 612
014 (165 Inline) 74.00 1880 44.00 1118 44.00 1118 29.80 757 27.80 706 8.10 206 22.10 561
017 (165 Inline) 80.00 2032 46.00 1168 44.00 1118 29.80 757 27.80 706 8.10 206 26.10 663
017 (182 Inline) 80.00 2032 46.00 1168 48.00 1219 31.80 808 31.80 808 8.10 206 24.10 612
021 (200 Inline) 82.00 2083 52.00 1321 50.00 1270 33.80 859 35.80 909 8.10 206 14.10 358
021 (222 Inline) 82.00 2083 52.00 1321 54.00 1372 35.80 909 35.80 909 10.10 257 16.10 409
025 (245 Inline) 86.00 2184 60.00 1524 58.00 1473 41.80 1062 39.80 1011 8.10 206 16.10 409
025 (270 Inline) 86.00 2184 60.00 1524 64.00 1626 43.80 1113 43.80 1113 12.10 307 14.10 358
030 (245 Inline) 98.00 2489 60.00 1524 58.00 1473 41.80 1062 39.80 1011 8.10 206 28.10 714
030 (270 Inline) 98.00 2489 60.00 1524 64.00 1626 43.80 1113 43.80 1113 12.10 307 20.10 511
035 (270 Inline) 102.00 2591 66.00 1676 64.00 1626 43.80 1113 43.80 1113 12.10 307 28.10 714
035 (300 Inline) 102.00 2591 66.00 1676 70.00 1778 47.80 1214 47.80 1214 12.10 307 20.10 511
045 (300 Inline) 106.00 2692 78.00 1981 70.00 1778 47.80 1214 47.80 1214 12.10 307 20.10 511
045 (333 Inline) 106.00 2692 78.00 1981 76.00 1930 51.80 1316 51.80 1316 12.10 307 20.10 511
055 (333 Inline) 106.00 2692 90.00 2286 76.00 1930 51.80 1316 51.80 1316 12.10 307 20.10 511
055 (365 Inline) 106.00 2692 90.00 2286 82.00 2082 57.80 1468 57.80 1468 12.10 307 30.10 765
Cat 570 43
Cooling coil section
NOTE: The single cooling coil section is available innumerous depths. This provides the option of varyingthe amount of space downstream from the coil foraccess to inspect and clean the coil and drain pan.When using a single bank of coils, the 18" deep sectionwill hold up to a 4-row water or DX coil.
Also available are staggered cooling coils. Thestaggered arrangement maximizes the cooling coil facearea by providing 2 banks of coils. These 2 coils are
not stacked, but are staggered in the direction ofairflow. This configuration does require more sectiondepth in the direction of airflow. Staggered coils areonly available on unit sizes 025 and larger. The sectiondepth required will vary between 30" - 54". This willdepend on the unit size and number of rows in the coil.
Standard base units require a minimum cooling coilvestibule length of 12”. Curb-ready base units require aminimum cooling coil vestibule length of 18”.
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height. A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.** All cooling coil lengths listed are available for any unit size (003 - 055).Height dimension does not include 2” roof cap seam.
Airflow
Plan
Elevation
2.00"
A
6.00" - 8.00"approx.
3.00"
2.00"C
B
3.00" 2.00"
C/2 Drain Conn.1.25 MPT
* * Optional vestibule available(18", 24", 30")
UNITSIZE
A*(large, medium coils) B* C **
(available all sizes)in. mm in. mm in. mm
003 38.00 965 28.00 711 18.00 457004 40.00 1016 32.00 813 24.00 610006 52.00 1321 32.00 813 30.00 762008 58.00 1473 34.00 864 36.00 914010 64.00 1626 38.00 965 42.00 1067012 66.00 1676 44.00 1118 48.00 1219014 74.00 1880 44.00 1118 54.00 1372017 80.00 2032 46.00 1168 — —021 82.00 2083 52.00 1321 — —025 86.00 2184 60.00 1524 — —030 98.00 2489 60.00 1524 — —035 102.00 2591 66.00 1676 — —045 106.00 2692 78.00 1981 — —055 106.00 2692 90.00 2286 — —
44 Cat 570
Combination cooling and reheat coil section
NOTE: The combination cooling and reheat coilsection is available in numerous depths. This providesthe option of varying the amount of space between thecooling coil and reheat coil for access to inspect andclean the coil and drain pan. All reheat and mostcooling coils are arranged in a single bank, which maybe 1, 2 or 3 coils high. When using a single bank ofcooling coils, the 24" deep section will hold up to a 4-row water or DX coil, and a 1 or 2 row heating coil. A36" deep section will hold a 12 row water coil and a 1 or2 row reheat coil.
Also available are staggered cooling coils. The
staggered arrangement maximizes the cooling coil facearea by providing 2 banks of coils. These 2 coils arenot stacked, but are staggered in the direction ofairflow. This configuration does require more sectiondepth in the direction of airflow. Staggered coils areonly available on unit sizes 025 and larger. The sectiondepth required will vary between 30" - 54". This willdepend on the unit size and number of rows in the coil.
Standard base units require a minimum combinationcoil vestibule length of 12”. Curb-ready base unitsrequire a minimum combination coil length of 16” and aminimum coil vestibule length of 18”.
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height. A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.**All combination coil lengths listed are available for any unit size (003 - 055).Height dimension does not include 2” roof cap seam.
Airflow
Plan
Elevation
2.00"A
6.00" - 8.00"approx.
*
2.00"C
B
3.00" 2.00"
C/2 Drain Conn.1.25 MPT
3.00"
* Optional vestibule available(18", 24", 30")
UNITSIZE
A*(large, medium coils) B* C **
(available all sizes)in. mm in. mm in. mm
003 38.00 965 28.00 711 24.00 610004 40.00 1016 32.00 813 30.00 762006 52.00 1321 32.00 813 36.00 914008 58.00 1473 34.00 864 42.00 1067010 64.00 1626 38.00 965 48.00 1219012 66.00 1676 44.00 1118 54.00 1372014 74.00 1880 44.00 1118 — —017 80.00 2032 46.00 1168 — —021 82.00 2083 52.00 1321 — —025 86.00 2184 60.00 1524 — —030 98.00 2489 60.00 1524 — —035 102.00 2591 66.00 1676 — —045 106.00 2692 78.00 1981 — —055 106.00 2692 90.00 2286 — —
Cat 570 45
Heating coil section
NOTE: 1.25 MPT drain connections are available as anoption for heating coil sections. Standard base unitsrequire a minimum heating coil vestibule length of 12”.Curb-ready base units require a heating coil minimumlength of 16", and a minimum heating coil vestibulelength of 18”.
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height. A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.
**All heating coil lengths listed are available for any unit size (003 - 055).
Height dimension does not include 2” roof cap seam.
Plan
6.00" - 8.00"approx.
2.00"
A AirflowB
Elevation
C**
2.00"
2.00"
Airflow
B
Elevation
2.00"
2.00"
6.00" - 8.00"approx.
A
*
Plan
*
2.00"
1 and 2 row
C**
* Optional vestibule available(18", 24", 30")
* Optional vestibule available(18", 24", 30")
heating coil section(uncased coils)
1 and 2 rowheating coil section(uncased coils)
UNIT SIZE
A* B* C**(available all sizes )
in. mm in. mm in. mm003 38.00 965 28.00 711 12.00 305
004 40.00 1016 32.00 813 14.00 356
006 52.00 1321 32.00 813 16.00 406
008 58.00 1473 34.00 864 18.00 457
010 64.00 1626 38.00 965 24.00 610
012 66.00 1676 44.00 1118 30.00 762
014 74.00 1880 44.00 1118 36.00 914
017 80.00 2032 46.00 1168 42.00 1067
021 82.00 2083 52.00 1321 48.00 1219
025 86.00 2184 60.00 1524 54.00 1372
030 98.00 2489 60.00 1524 — —
035 102.00 2591 66.00 1676 — —045 106.00 2692 78.00 1981 — —055 106.00 2692 90.00 2286 — —
46 Cat 570
Side load flat and angular filter section
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
Plan
A Airflow
B
Elevation
Flat filter section
C
2.00"
2.00"
3.34"2.00"
Angular filter section
Plan
2.00"
A
2.00"
Airflow
B
C
Elevation
2.00"
UNIT SIZEA* B*
C C C
2” & 4” Flat Filter 2” Angular Filter 4” Angular Filter
in. mm in. mm in. mm in. mm in. mm
003 38.00 965 28.00 711 12.00 305 32.00 813 N/A N/A
004 40.00 1016 32.00 813 12.00 305 30.00 762 N/A N/A
006 52.00 1321 32.00 813 12.00 305 30.00 762 N/A N/A
008 58.00 1473 34.00 864 12.00 305 30.00 762 32.00 813
010 64.00 1626 38.00 965 12.00 305 30.00 762 32.00 813
012 66.00 1676 44.00 1118 12.00 305 30.00 762 32.00 813
014 74.00 1880 44.00 1118 12.00 305 30.00 762 32.00 813
017 80.00 2032 46.00 1168 12.00 305 30.00 762 32.00 813
021 82.00 2083 52.00 1321 12.00 305 30.00 762 32.00 813
025 86.00 2184 60.00 1524 12.00 305 32.00 813 32.00 813
030 98.00 2489 60.00 1524 12.00 305 32.00 813 32.00 813
035 102.00 2591 66.00 1676 12.00 305 32.00 813 32.00 813
045 106.00 2692 78 1981 12.00 305 32.00 812 32.00 813
055 106.00 2692 90 2286 12.00 305 32.00 813 32.00 813
Cat 570 47
Side load cartridge and bag filter section
Plan
A AirflowB
Elevation
Cartridge filter section
C
2.00"
Bag filter section
Plan
2.00"
A
Airflow
B
C
Elevation
2.00"
3.34"
2.00"
2.00"
2.00"
3.34"
48 Cat 570
Side load cartridge and bag filter section
A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.* These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.
* * All cartridge and bag filters listed are available for any unit size (003 - 055)Height dimension does not include 2” roof cap seam.
UNIT SIZEA* B* FILTER TYPE C – ALL SIZES * *
in. mm in. mm Cartridge in. mm
003 38.00 965 28.00 711 4” w/2” Pre 14.00 356
004 40.00 1016 32.00 813 4” w/4” Pre 16.00 406
006 52.00 1321 32.00 813 12” w/2” Pre 22.00 559
008 58.00 1473 34.00 864 12” w/4” Pre 24.00 610
010 64.00 1626 38.00 965 Bag in. mm
012 66.00 1676 44.00 1118 12” w/2” Pre 18.00 457
014 74.00 1880 44.00 1118 12” w/4” Pre 20.00 508
017 80.00 2032 46.00 1168 15” w/2” Pre 22.00 559
021 82.00 2083 52.00 1321 15” w/4” Pre 24.00 610
025 86.00 2184 60.00 1524 19” w/2 Pre 26.00 660
030 98.00 2489 60.00 1524 19” w/4” Pre 28.00 711
035 102.00 2591 66.00 1676 22” w/2” Pre 28.00 711
045 106.00 2692 78.00 1981 22" w/4" Pre 30.00 762
055 106.00 2692 90.00 2286 30" w/2" Pre 36.00 914
30" w/4" Pre 38.00 965
36" w/2" Pre 42.00 1067
36" w/4" Pre 44.00 1118
Cat 570 49
Front load cartridge and bag filter section
NOTE: An upstream plenum with tread plate is required on all front load filter sections.
Plan
AAirflow B
Elevation
Cartridge filter section
C
2.00"
Bag filter section
Plan
2.00"
AAirflow
B
C
Elevation
2.00"
3.00" (2" Prefilter)5.00" (4" Prefilter)
2.00"
2.00"
2.00"
3.00" (2" Prefilter)5.00" (4" Prefilter)
50 Cat 570
Front load cartridge and bag filter section
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.**All cartridge and bag filter options listed are available for any unit size (003 - 055).Height dimension does not include 2” roof cap seam.
UNIT SIZEA* B* FILTER TYPE C – ALL SIZES * *
in. mm in. mm Cartridge in. mm003 38.00 965 28.00 711 4” w/2” Pre 12.00 305
004 40.00 1016 32.00 813 4” w/4” Pre 12.00 305
006 52.00 1321 32.00 813 12” w/2” Pre 16.00 406
008 58.00 1473 34.00 864 12” w/4” Pre 16.00 406
010 64.00 1626 38.00 965 Bag in. mm012 66.00 1676 44.00 1118 12" w/2" Pre 16.00 406
014 74.00 1880 44.00 1118 12" w/4" Pre 16.00 406
017 80.00 2032 46.00 1168 15" w/2" Pre 20.00 508
021 82.00 2083 52.00 1321 15" w/4" Pre 20.00 508
025 86.00 2184 60.00 1524 19" w/2" Pre 24.00 610
030 98.00 2489 60.00 1524 19" w/4" Pre 24.00 610
035 102.00 2591 66.00 1676 22" w/2" Pre 26.00 660
045 106.00 2692 78.00 1981 22" w/4" Pre 26.00 660
055 106.00 2692 90.00 2286 30" w/2" Pre 34.00 864
30" w/4" Pre 34.00 864
36" w/2" Pre 40.00 1016
36" w/4" Pre 40.00 1016
Cat 570 51
Mixing box and combination filter mixing box
Note: Dampers can be located in the top, bottom, and end of the section. Top and bottom fresh air dampers are notavailable if hoods are selected.
Mixing box with combination filter and hood
2.00"
Elevation
2.00"
Airflow
C
D
BD
E
Plan
2.00"
GA
Plan
Mixing box with side opening and hood
Airflow
2.00"
Q
BK
C
P
2.00"
A
H
JM
N
R
Elevation
52 Cat 570
Cat 570 53
Mixing box and combination filter mixing box
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.
A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.
Height dimension does not include 2” roof cap seam.
UNIT SIZEA* B* C Mixing Box
Only C w/2” Flat Filter C w/4” Flat Filter C w/2” Ang Filter C w/4” Ang Filter
in. mm in. mm in. mm in. mm in. mm in. mm in. mm003 38 965 28 711 26 660 20 508 22 559 42 1067 N/A N/A004 40 1016 32 813 26 660 24 610 26 660 42 1067 N/A N/A006 52 1321 32 813 44 1118 24 610 26 660 42 1067 N/A N/A008 58 1473 34 864 50 1270 24 610 26 660 42 1067 46 1168010 64 1626 38 965 52 1321 26 660 28 711 44 1118 48 1219012 66 1676 44 1118 48 1219 28 711 30 762 46 1168 50 1270014 74 1880 44 1118 54 1372 28 711 30 762 46 1168 50 1270017 80 2032 46 1168 56 1422 30 762 32 813 48 1219 52 1321021 82 2083 52 1321 56 1422 34 864 36 914 52 1321 56 1422025 86 2184 60 1524 52 1321 36 914 38 965 54 1372 58 1473030 98 2489 60 1524 68 1727 36 914 38 965 54 1372 58 1473035 102 2591 66 1676 68 1727 40 1016 42 1067 58 1473 62 1575045 106 2692 78 1981 68 1727 48 1219 50 1270 66 1676 70 1778055 106 2692 90 2286 68 1727 56 1422 58 1473 74 1880 78 1981
UNIT SIZED E G H J K M
in. mm in. mm in. mm in. mm in. mm in. mm in. mm003 16 406 10 254 34 864 16.3 414 40 1016 16 406 34 864004 16 406 14 356 36 914 21.7 551 32 813 20 508 36 914006 16 406 14 356 48 1219 27.1 688 48 1219 20 508 32 813008 16 406 10 254 54 1372 27.1 688 46 1168 24 610 38 965010 18 457 8 203 60 1524 29.8 757 48 1219 26 660 44 1118012 20 508 10 254 62 1575 37.9 963 44 1118 32 813 46 1168014 20 508 10 254 70 1778 37.9 963 50 1270 32 813 54 1372017 22 559 12 305 76 1930 21.6 549 52 1321 36 914 60 1524021 26 660 14 356 78 1981 25.6 650 52 1321 42 1067 62 1575025 28 711 16 406 82 2083 31 787 48 1219 50 1270 66 1676030 28 711 16 406 94 2388 31 787 64 1626 50 1270 78 1981035 32 813 18 457 98 2489 35.1 892 64 1626 56 1422 82 2083045 40 1016 20 508 102 2591 28.7 729 64 1626 68 1727 86 2184055 48 1219 22 559 102 2591 34.1 866 64 1626 80 2032 86 2184
UNIT SIZEN P Q R
in. mm in. mm in. mm in. mm003 12 305 2 51 16.3 414 14 356004 16 406 2 51 16.3 414 14 356006 24 610 2 51 16.3 414 6 152008 24 610 2 51 19 483 8 203010 26 660 2 51 19 483 10 254012 28 711 6 152 21.7 551 10 254014 26 660 8 203 21.7 551 10 254017 28 711 8 203 24.4 620 10 254021 34 864 8 203 29.8 757 10 254025 36 914 12 305 32.5 826 12 305030 36 914 12 305 35.2 894 12 305035 38 965 14 356 37.9 963 14 356045 46 1168 16 406 24.3 617 16 406055 60 1524 14 356 29.7 754 16 406
Economizer section
Note: Dampers can be located in the top, bottom, drive side and opposite drive side of the section. Top and bottomfresh air dampers are not available if hoods are selected.
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
UNIT SIZE
A* B* D G Damper Width Damper Lengthin. mm in. mm in. mm in. mm in. mm in. mm
003 38.00 965 28.00 711 16.00 406 34.00 864 12.00 305 24.00 610004 40.00 1016 32.00 813 16.00 406 36.00 914 12.00 305 26.00 660006 52.00 1321 32.00 813 16.00 406 48.00 1219 12.00 305 38.00 965008 58.00 1473 34.00 864 16.00 406 54.00 1372 12.00 305 44.00 1118010 64.00 1626 38.00 965 18.00 457 60.00 1524 14.00 356 50.00 1270012 66.00 1676 44.00 1118 20.00 508 62.00 1575 16.00 406 52.00 1321014 74.00 1880 44.00 1118 20.00 508 70.00 1778 16.00 406 60.00 1524017 80.00 2032 46.00 1168 22.00 559 76.00 1930 18.00 457 66.00 1676021 82.00 2083 52.00 1321 26.00 660 78.00 1981 22.00 559 68.00 1727025 86.00 2184 60.00 1524 28.00 711 82.00 2083 24.00 610 72.00 1829030 98.00 2489 60.00 1524 28.00 711 94.00 2388 24.00 610 84.00 2134035 102.00 2591 66.00 1676 32.00 813 98.00 2489 28.00 711 88.00 2235045 106.00 2692 78.00 1981 40.00 1016 102.00 2591 36.00 914 92.00 2337055 106.00 2692 90.00 2286 48.00 1219 102.00 2591 44.00 1118 92.00 2337
UNIT SIZE
C Econ. Only C w/2” Flat Filter C w/4” Flat Filter C w/2” Ang Filter C w/4” Ang Filterin. mm in. mm in. mm in. mm in. mm
003 40.00 1016 44.00 1118 46.00 1168 62.00 1575 N/A N/A004 40.00 1016 44.00 1118 46.00 1168 62.00 1575 N/A N/A006 40.00 1016 44.00 1118 46.00 1168 62.00 1575 N/A N/A008 40.00 1016 44.00 1118 46.00 1168 62.00 1575 66.00 1676010 44.00 1118 48.00 1219 50.00 1270 66.00 1676 70.00 1778012 48.00 1219 52.00 1321 54.00 1372 70.00 1778 74.00 1880014 48.00 1219 52.00 1321 54.00 1372 70.00 1778 74.00 1880017 52.00 1321 56.00 1422 58.00 1473 74.00 1880 78.00 1981021 60.00 1524 64.00 1626 66.00 1676 82.00 2083 86.00 2184025 64.00 1626 68.00 1727 70.00 1778 86.00 2184 90.00 2286030 64.00 1626 68.00 1727 70.00 1778 86.00 2184 90.00 2286035 72.00 1829 76.00 1930 78.00 1981 94.00 2388 98.00 2489045 88.00 2235 92.00 2337 94.00 2388 110.00 2794 114.00 2896055 104.00 2643 108.00 2743 110.00 2794 126.00 3200 130.00 3302
Elevation
Plan
2.00"
2.00"
AAirflow
B
G
2.00" 2.00"
C
D D4"
54 Cat 570
Economizer section - side dampers with hoods
Note: Dampers can be located in the top, bottom, drive side and opposite drive side of the section. Top and bottomfresh air dampers are not available if hoods are selected.
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
UNIT SIZEA* B* C D
Exhaust Air Damper Fresh Air Damper
Width Height Width Height
in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm
003 38.00 965 28.00 711 52.00 1321 19.00 483 22.00 559 18.00 457 22.00 559 18.00 457
004 40.00 1016 32.00 813 52.00 1321 24.40 620 22.00 559 22.00 559 22.00 559 22.00 559
006 52.00 1321 32.00 813 60.00 1524 24.40 620 26.00 660 22.00 559 26.00 660 22.00 559
008 58.00 1473 34.00 864 100.00 2540 27.10 688 46.00 1168 24.00 610 46.00 1168 24.00 610
010 64.00 1626 38.00 965 96.00 2438 32.50 826 44.00 1118 28.00 711 44.00 1118 28.00 711
012 66.00 1676 44.00 1118 88.00 2235 40.60 1031 40.00 1016 34.00 864 40.00 1016 34.00 864
014 74.00 1880 44.00 1118 100.00 2540 40.60 1031 46.00 1168 34.00 864 46.00 1168 34.00 864
017 80.00 2032 46.00 1168 112.00 2845 21.60 549 52.00 1321 36.00 914 52.00 1321 36.00 914
021 82.00 2083 52.00 1321 112.00 2845 25.60 650 52.00 1321 42.00 1067 52.00 1321 42.00 1067
025 86.00 2184 60.00 1524 104.00 2642 31.00 787 48.00 1219 50.00 1270 48.00 1219 50.00 1270
030 98.00 2489 60.00 1524 136.00 3454 31.00 787 64.00 1626 50.00 1270 64.00 1626 50.00 1270
035 102.00 2591 66.00 1676 136.00 3454 35.10 892 64.00 1626 56.00 1422 64.00 1626 56.00 1422
045 106.00 2692 78.00 1981 136.00 3454 28.70 729 64.00 1626 68.00 1727 64.00 1626 68.00 1727
055 106.00 2692 90.00 2286 160.00 4064 28.70 729 76.00 1930 68.00 1727 76.00 1930 68.00 1727
B
D
A
Width
Height
8.00"Width
C
AirflowMixingReturn
Plan Elevation
Exhaust
OutsideAir
Chamber Chamber
Cat 570 55
Blenders
Note: The depth of an air mixer section does vary depending on components adjacent to the mixing device. Thecatalog dimensions shown are for a 2 blender system. For applications other than this, the depth dimension willvary. Use the SelectTOOLS Software for more detailed dimensional information.
Blender Product Series IV Kees Blender
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
ElevationPlan
2.00"
A
Airflow
B
C
2.00"
2.00"
UNIT SIZE
A* B* C
in. mm in. mm in. mm
003 38.00 965 28.00 711 10.00 253
004 40.00 1016 32.00 813 12.00 305
006 52.00 1321 32.00 813 14.00 356
008 58.00 1473 34.00 864 16.00 406
010 64.00 1626 38.00 965 18.00 457
012 66.00 1676 44.00 1118 20.00 508
014 74.00 1880 44.00 1118 22.00 559
017 80.00 2032 46.00 1168 24.00 610
021 82.00 2083 52.00 1321 28.00 711
025 86.00 2184 60.00 1524 32.00 813
030 98.00 2489 60.00 1524 34.00 864
035 102.00 2591 66.00 1676 36.00 914
045 106.00 2692 78.00 1981 48.00 1219
055 106.00 2692 90.00 2286 58.00 1473
UNIT SIZE
A* B* C
in. mm in. mm in. mm
003 38.00 965 28.00 711 N/A N/A
004 40.00 1016 32.00 813 N/A N/A
006 52.00 1321 32.00 813 22.00 559
008 58.00 1473 34.00 864 24.00 610
010 64.00 1626 38.00 965 26.00 660
012 66.00 1676 44.00 1118 28.00 711
014 74.00 1880 44.00 1118 30.00 762
017 80.00 2032 46.00 1168 32.00 813
021 82.00 2083 52.00 1321 36.00 914
025 86.00 2184 60.00 1524 38.00 965
030 98.00 2489 60.00 1524 40.00 1016
035 102.00 2591 66.00 1676 42.00 1067
045 106.00 2692 78.00 1981 52.00 1321
055 106.00 2692 90.00 2286 54.00 1372
56 Cat 570
Cat 570 57
Access doors
Note: Access doors are an option for most sections. Fan sections are always provided with a door on one side ofthe unit. The size of the access door varies with the size of the section. Access doors are never wider than 30".
Once the door is opened outward, the opening will be 2" less than the door height and width. This is because thereis a 1" flange around the opening. Door height is always 4" shorter than the section height except if the section hasa drain connection. If the section has a drain pan, then the door will be 6" shorter than the section height. Themaximum door height is 50", except filter section doors, which are equal to section height less 4".
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
Elevation
2.00"
D
C
2.00" 1.00" Flange
1.00"
1.00" Flange
B
Plan
B
UNIT CROSS SECTION AVAILABLE DOOR WIDTHS BASED ON SECTION LENGTH
UNIT SIZEA* B* C D
in. mm in. mm in. mm in. mm
003 38.00 965 28.00 711 12.00 305 8.00 203
004 40.00 1016 32.00 813 14.00 356 10.00 254
006 52.00 1321 32.00 813 16.00 406 12.00 305
008 58.00 1473 34.00 864 18.00 457 14.00 356
010 64.00 1626 38.00 965 20.00 508 16.00 406
012 66.00 1676 44.00 1118 22.00 559 18.00 457
014 74.00 1880 44.00 1118 24.00 610 20.00 508
017 80.00 2032 28.00 711 26.00 660 22.00 559
021 82.00 2083 52.00 1321 28.00 711 24.00 610
025 86.00 2184 60.00 1524 30.00 762 26.00 660
030 98.00 2489 60.00 1524 32.00 813 28.00 711
035 102.00 2591 66.00 1676 34.00 864 30.00 762
045 106.00 2692 78.00 1981 — — — —
055 106.00 2692 90.00 2286 — — — —
Diffuser
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
Plan
2.00"
AAirflow
B
Elevation
2.00"
2.00"
C
UNIT SIZE
A* B* C
in. mm in. mmHoused Fans Inline Fans
in. mm in. mm
003 38.00 965 28.00 711 10.00 254 N/A N/A
004 40.00 1016 32.00 813 10.00 254 N/A N/A
006 52.00 1321 32.00 813 10.00 254 N/A N/A
008 58.00 1473 34.00 864 12.00 305 N/A N/A
010 64.00 1626 38.00 965 12.00 305 18.00 457
012 66.00 1676 44.00 1118 16.00 406 18.00 457
014 74.00 1880 44.00 1118 16.00 406 18.00 457
017 80.00 2032 46.00 1168 16.00 406 22.00 559
021 82.00 2083 52.00 1321 16.00 406 26.00 660
025 86.00 2184 60.00 1524 24.00 610 26.00 660
030 98.00 2489 60.00 1524 24.00 610 26.00 660
035 102.00 2591 66.00 1676 24.00 610 28.00 711
045 106.00 2692 78.00 1981 30.00 762 30.00 762
055 106.00 2692 90.00 2286 30.00 762 30.00 762
58 Cat 570
Access section
Note: 1.25 MPT drain connection available as an option for access sections.
* These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.* * Access section lengths listed are available for any unit size (003-055). A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
UNIT SIZEA* B* C * *
(available all sizes)
in. mm in. mm in. mm
003 38.00 965 28.00 711 16.00 406
004 40.00 1016 32.00 813 24.00 610
006 52.00 1321 32.00 813 30.00 762
008 58.00 1473 34.00 864 36.00 914
010 64.00 1626 38.00 965 42.00 1067
012 66.00 1676 44.00 1118 48.00 1219
014 74.00 1880 44.00 1118 54.00 1372
017 80.00 2032 46.00 1168 — —
021 82.00 2083 52.00 1321 — —
025 86.00 2184 60.00 1524 — —
030 98.00 2489 60.00 1524 — —
035 102.00 2591 66.00 1676 — —
045 106.00 2692 78.00 1981 — —
055 106.00 2692 90.00 2286 — —
Plan
2.00"
AAirflow
B
Elevation
2.00"
2.00"
C
Cat 570 59
Internal and external face and bypass sections
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
UNIT SIZEA* B* C - Internal C - External D
in. mm in. mm in. mm in. mm in. mm
003 38.00 965 28.00 711 12.00 305 18.00 457 10.00 254
004 40.00 1016 32.00 813 12.00 305 18.00 457 10.00 254
006 52.00 1321 32.00 813 12.00 305 18.00 457 10.00 254
008 58.00 1473 34.00 864 12.00 305 20.00 508 10.00 254
010 64.00 1626 38.00 965 12.00 305 22.00 559 12.00 305
012 66.00 1676 44.00 1118 12.00 305 24.00 610 16.00 406
014 74.00 1880 44.00 1118 12.00 305 24.00 610 16.00 406
017 80.00 2032 46.00 1168 12.00 305 26.00 660 16.00 406
021 82.00 2083 52.00 1321 12.00 305 30.00 762 22.00 559
025 86.00 2184 60.00 1524 12.00 305 32.00 813 24.00 610
030 98.00 2489 60.00 1524 12.00 305 32.00 813 24.00 610
035 102.00 2591 66.00 1676 12.00 305 34.00 864 26.00 660
045 106.00 2692 78.00 1981 12.00 305 44.00 1118 30.00 762
055 106.00 2692 90.00 2286 12.00 305 50.00 1270 36.00 914
Elevation
Plan
2.00"
A
2.00"
AirflowB
2.00"
12.00"
Plan
A
2.00"
Elevation
2.00"
AirflowB
2.00"
D
C
CabinetHeight
Internal face and bypass with small and medium face area coil
External face and bypass with large face area coil
60 Cat 570
Discharge or return plenum
Note: Return and discharge plenums are available with openings in the top, bottom, upper end, lower end, drive side oropposite drive side. The opening size does not vary with the location. All openings have a 1” flange recessed in opening. 1.25MPT drain connection available as an option for plenum sections.
*These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
UNIT SIZEA* B* C D E
in. mm in. mm in. mm in. mm in. mm
003 38.00 965 28.00 711 14.00 356 10.00 254 34.00 864
004 40.00 1016 32.00 813 16.00 406 12.00 305 36.00 914
006 52.00 1321 32.00 813 16.00 406 12.00 305 48.00 1219
008 58.00 1473 34.00 864 18.00 457 14.00 356 54.00 1372
010 64.00 1626 38.00 965 20.00 508 16.00 406 60.00 1524
012 66.00 1676 44.00 1118 22.00 559 18.00 457 62.00 1575
014 74.00 1880 44.00 1118 22.00 559 18.00 457 70.00 1778
017 80.00 2032 46.00 1168 24.00 610 20.00 508 76.00 1930
021 82.00 2083 52.00 1321 28.00 711 24.00 610 78.00 1981
025 86.00 2184 60.00 1524 30.00 762 26.00 660 82.00 2083
030 98.00 2489 60.00 1524 30.00 762 26.00 660 94.00 2388
035 102.00 2591 66.00 1676 32.00 813 28.00 711 98.00 2489
045 106.00 2692 78.00 1981 36.00 914 32.00 813 102.00 2591
055 106.00 2692 90.00 2286 44.00 1016 40.00 1016 102.00 2591
Elevation
Plan
A
Airflow
B
2.00"
D
E
2.00"
2.00"1.00"
Flange
1.00"Flange
C
Optional OpeningLocation
Optional OpeningLocation
Optional OpeningLocation
Optional OpeningLocation
Optional OpeningLocation
Optional OpeningLocation
Cat 570 61
62 Cat 570
Sound attenuator section
* These are the dimensions of the unit only. Curb-ready base adds 6” (152 mm) to the unit height.* * Sound attenuator section lengths listed are available for any unit size (003 - 055).A standard base rail adds 8” (203 mm) to the width, and between 4” - 12” (102mm - 305 mm) to the unit height.Height dimension does not include 2” roof cap seam.
UNITSIZE
A* B*C * *
(available all sizes)
in. mm in. mm in. mm
003 38.00 965 26.00 660 in. mm
004 40.00 1016 30.00 762 40.00 1016
006 52.00 1321 30.00 762 52.00 1321
008 58.00 1473 34.00 864 64.00 1626
010 64.00 1626 36.00 914 — —
012 66.00 1676 42.00 1067 — .—
014 74.00 1880 42.00 1067 — —
017 80.00 2032 46.00 1168 — —
021 82.00 2083 52.00 1321 — —
025 86.00 2184 60.00 1524 — —
030 98.00 2489 60.00 1524 — —
035 102.00 2591 66.00 1676 — —045 106.00 2692 78.00 1981 — —055 106.00 2692 90.00 2286 — —
Elevation
Plan
A Airflow
C
2.00"
B
2.00"
2.00"
Roof curb
' � �
' � �
( � �
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& " + ' � � ! � �� � � " � " ! �
� ! � �, $ � � �
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�
�
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Cat 570 63
Base rail
Note: The base rail is available in heights of 4”, 6”, 8”, 10” and 12”.
Curb ready base rail
Note: The curb ready base rail is available in a 6” height.
Airflow
2.00"
CL
Height
2.00"dia. hole
0.625"dia. hole
2.00" 2.00"
4.00"
1.00"
4.00"
1.00"
UnitWidth
Unit ShippingSection Length
End View
Plan View
1.66" *
4.00"
Airflow
Unit ShippingSection Length
Unit Width
4.00"
6.00"Height
CL2.00" Dia.Hole
1.62"
2.00"
* Note: Base Overlays Curve by 1.66".
End View Plan View
64 Cat 570
Engineering guide specificationPART 1: GENERAL
1.01 SECTION INCLUDESA. Air handling units.
1.02 REFERENCESA. AFBMA 9 - Load Ratings and Fatigue Life for Ball Bearings.B. AMCA 99 - Standards Handbook.C. AMCA 210 - Laboratory Methods of Testing Fans for Rating Purposes.D. AMCA 300 - Test Code for Sound Rating Air Moving Devices.E. AMCA 500 - Test Methods for Louver, Dampers, and Shutters.F. ARI 410 - Forced-Circulation Air-Cooling and Air-Heating Coils.G. ARI 430 - Central-Station Air-Handling Units.H. ARI 435 - Application of Central-Station Air-Handling Units.I. ASTMB117 - Standard Practice for Operating Salt Spray ApparatusJ. NEMA MG1 - Motors and Generators.K. NFPA 70 - National Electrical Code.L. SMACNA - HVAC Duct Construction Standards - Metal and Flexible.M. UL 723 - Test for Surface Burning Characteristics of Building MaterialsN. UL 900 - Test Performance of Air Filter Units.O. UL 1995 - Standard for Heating and Cooling EquipmentP. UL 94 - Test for Flammability of Plastic Materials for Parts in Devices and Appliances
1.03 SUBMITTALSA. Shop Drawings: Indicate assembly, unit dimensions, weight loading, required clearances, construction details, field
connection details, and electrical characteristics and connection requirements. Computer generated fan curves foreach air handling unit shall be submitted with specific design operating point noted. A computer generated psycho-metric chart shall be submitted for each cooling coil with design points and final operating point clearly noted.Sound data for discharge, radiated and return positions shall be submitted by octave band for each unit. Calcula-tions for required baserail heights shall be included.
B. Product Data:1. Provide literature that indicates dimensions, weights, capacities, ratings, fan performance, gauges and finishes
of materials, and electrical characteristics and connection requirements.2. Provide data of filter media, filter performance data, filter assembly, and filter frames.3. Manufacturer's Installation Instructions.
1.04 OPERATION AND MAINTENANCE DATAA. Maintenance Data: Include instructions for lubrication, filter replacement, and motor and drive replacement.
1.05 QUALIFICATIONSA. Manufacturer: Company specializing in manufacturing the Products specified in this section with minimum
five years.1.06 DELIVERY, STORAGE, AND HANDLING
A. Deliver, store, protect and handle products to site.B. Accept products on site on factory-installed shipping skids. Inspect for damage.C. Store in clean dry place and protect from weather and construction traffic. Handle carefully to avoid damage to
components, enclosures, and finish.1.07 ENVIRONMENTAL REQUIREMENTS
A. Do not operate units for any purpose, temporary or permanent, until ductwork is clean, filters are in place, bearingslubricated, and fan has been test run under observation.
1.08 EXTRA MATERIALSA. Provide one set for each unit of fan belts and filters.
Cat 570 65
66 Cat 570
PART 2: PRODUCTS2.01 MANUFACTURERS
A. The following manufacturers are approved for use. No substitutions will be permitted.1. McQuay2. Miller-Picking3. Temtrol4. Scott-Springfield5. Racan
2.02 GENERAL DESCRIPTIONA. Configuration: Fabricate as detailed on prints.B. Performance: Conform to ARI 430. See schedules on prints.C. Acoustics: Sound power levels (dB) for the unit shall not exceed the following specified levels. The manufacturer
shall provide the necessary sound treatment to meet these levels if required.
2.03 CASINGA. Fabricate unit casing of nom. 16 gauge channel posts and removable panels assembled with mechanical fasteners
and a galvanized steel or painted galvanized steel. Assemble sections with high compression gasketing betweeneach frame member and unit panel or door to prevent thermal bridging from interior to exterior of unit.1. Outside casing shall consist of [G60 steel phosphatized and coated with baked on smooth beige enamel paint
which meets or exceeds a 600 hour salt spray in accordance with ASTM117 standard for salt spray resistance(nom.16-gauge) (nom.18 gauge)].
2. Provide cross broke roofcap system to divert water from the top surfaces of the air handler. The rain shed roof-cap shall have 2" standing seams covered with splice cap channels to seal top and side of seam. Drip shieldshall be provided on all four sides of unit to direct water from roof cap away from sides of unit.
3. Internal lining on all sections shall be constructed of nom. 20 gauge [galvanized steel] [(304 solid stainlesssteel)].
4. Floor plate [access sections] [all sections] shall be constructed of [galvanized steel (nom. 20 gauge) (nom. 14gauge)] [304 solid stainless steel (nom. 20 gauge) (nom. 14 gauge)] [Aluminum tread plate .125 inch thick].
5. Entire unit shall have a [6" curb ready base rail] [standard full perimeter base rail (4") (6") (8") (10") (12")] forstructural rigidity and condensate trapping. Curb-ready base rail shall have sloped drip pans located under allsections except duct openings and shall be supported by frame members.
6. (Opt.) Roof curb kit of [16"] [20"] [24"] [30"] height shall provide support for the air handler on the building roof andprovide a weather protected area for terminating and securing the roof membrane. The roof curb kit shall bemanufactured and shipped separately from the air handler.
7. (Opt.) Coil piping vestibule [18”] [24”] [30”] shall be factory installed of standard cabinet construction on the coilconnection side of the unit. Roofcap over vestibule should be a continuous single piece covering both the coilsection and the vestibule. Roofcap seams between coil section and vestibule are not allowed.
B. Module to module assembly shall be accomplished with an overlapping, full perimeter internal splice joint that issealed with bulb type gasketing on both mating modules to minimize on-site labor along with meeting indoor airquality standards.
C. Insulation: 2" thick, [1-1/2] [3] lb. per cu ft density, neoprene coated, glass fiber insulation.D. Access Doors: Made of galvanized steel, flush mounted to cabinetry, with minimum of two six inch long stainless
steel piano-type hinges, 2 latches and full size (4.5" minimum) handle assembly. Doors shall have double gasket-ing. Doors that are not full height shall have top gutter channel for diverting water run off away. Doors shall swingoutward. Positive pressure sections shall have a secondary latch to relieve pressure and prevent injury uponaccess.
E. Construct drain pans of (microbial resistant coated galvanized steel) (304 solid stainless steel) with cross break anddouble sloping pitch to drain connection. Provide drain pans under (cooling coil) (combination coil) sections. (Opt.)
Octave Band at Center Frequency (Hz)
63 125 250 500 1000 2000 4000 8000
Radiated
Discharge
Return
(Opt.) Drain pans shall be provided under [heating coil] [plenum] [access] [mixing box] [economizer] [blender] [fan]sections. Drain connection centerline shall be a minimum of 3" above the base rail to aid in proper condensatetrapping. Drain connections that protrude from the base rail are not acceptable.
2.04 SUPPLY / RETURN FANSA. Provide (DWDI forward-curved) (DWDI airfoil) (belt-drive airfoil plenum) (direct-drive airfoil plenum) (inline) (DWDI
forward curved twin) supply (return) fan(s). Fan assemblies including fan, motor and sheaves shall be dynamicallybalanced by the manufacturer on all three planes and at all bearing supports. Manufacturer must ensure maximumfan RPM is below the first critical speed.
B. Bearings shall be self-aligning, grease lubricated, ball or roller bearings with extended copper lubrication lines toaccess side of unit. Grease fittings shall be attached to the fan base assembly near access door. If not supplied atthe factory, contractor shall mount copper lube lines in the field.
C. Fan and motor shall be mounted internally on a steel base. Factory mount motor on slide base that can be slid outthe side of unit if removal is required. Provide access to motor, drive, and bearings through hinged access door.Fan and motor assembly shall be mounted on (rubber in shear) (2" deflection spring) vibration type isolators insidecabinetry. (Seismic snubbers shall be provided).
2.05 BEARINGS AND DRIVESA. Bearings: Basic load rating computed in accordance with AFBMA - ANSI Standards, [L-50 life at 200,000 hours - all
DWDI fans] [L-50 life at 500,000 hours - All DWDI fans], [L-50 life at 400,000 hours all belt-drive airfoil plenumfans.] [L-50 life 1,000,000 hours - All DWDI fans] [L-50 life at 600,000 hours - all inline fans], heavy duty pillow blocktype, self-aligning, grease-lubricated ball bearings
B. Shafts shall be solid, hot rolled steel, ground and polished, keyed to shaft, and protectively coated with lubricatingoil. Hollow shafts are not acceptable.
C. V-Belt drives shall be cast iron or steel sheaves, dynamically balanced, bored to fit shafts and keyed. [Fixedsheaves, matched belts, and drive rated based on motor horsepower] [Variable and adjustable pitch sheavesselected so required RPM is obtained with sheaves set at mid-position and rated based on motor horsepower. Con-tractor to furnish fixed sheaves at final RPM as determined by balancing contractor]. Minimum of 2 belts shall beprovided on all fans with 10 HP motors and above. Standard drive service factor [1.1 (1/4 HP - 7.5 HP)] [1.3 (10HPand larger)] times fan brake horsepower.
2.06 ELECTRICALA. Wiring Termination: Provide terminal lugs to match branch circuit conductor quantities, sizes, and materials indi-
cated. Enclosed terminal lugs in terminal box sized to NFPA 70.B. (Opt.) Provide [marine light] [marine light and GFI receptacle] in (fan) (diffuser) (coil with removable panel or door)
(access) (blender) (manual) (plenum) (mixing box) (economizer) (face and bypass) section mounted and wired to ajunction box and on-off switch mounted on the outside of the cabinet.
C. Motors: provide (ODP)(TEFC)(2 Speed) type with (standard) (EPACT) (premium) efficiency. Electrical characteris-tics shall be as shown in schedule.
2.07 COOLING AND HEATING COIL SECTIONSA. Provide access to coils from (both sides) (connection side) (opposite connection side) of unit for service and clean-
ing. Enclose coil headers and return bends fully within unit casing. Unit shall be provided with coil connections thatextend a minimum of 5" beyond unit casing for ease of installation. Drain and vent connections shall be providedexterior to unit casing. Coil connections on curb ready base units must be factory sealed with grommets on interiorand exterior and gasket sleeve between outer wall and liner where each pipe extends through the unit casing tominimize air leakage and condensation inside panel assembly. If not factory packaged, Contractor must supply allcoil connection grommets and sleeves. Coils shall be removable through side of unit.
B. Certify air coil capacities, pressure drops, and selection procedures in accordance with ARI 410.C. Water Coils:
1. Fins shall have a minimum thickness of [0.0075"] [0.0095"] of (aluminum), [0.006"] [0.0075"] [0.0095"] of (cop-per) plate construction. Fins shall have full drawn collars to provide a continuous surface cover over the entiretube for maximum heat transfer. Tubes shall be mechanically expanded into the fins to provide a continuous pri-mary to secondary compression bond over the entire finned length for maximum heat transfer rates. Bare cop-per tubes shall not be visible between fins.
2. Coil tubes shall be 5/8 inch OD seamless copper, (0.020") (0.025") (0.035") nominal tube wall thickness, expandedinto fins, brazed at joints. Soldered U-bends shall be provided to minimize the effects of erosion and premature fail-ure having a minimum tube wall thickness of (.025"). 1/2" tubes and hairpin construction are not acceptable.
3. Water coils shall be provided with headers of seamless copper tubing with intruded tube holes to permit expan-sion and contraction without creating undue stress or strain. Coil connections shall be [carbon steel] [copper][red brass] with connection size to be determined by manufacturer based upon the most efficient coil circuiting.Vent connections provided at the highest point to assure proper venting. Drain connections shall be provided atthe lowest point.
4. Coil casings shall be a formed channel frame of (galvanized steel) (304 solid stainless steel).5. (Opt.) Coil piping vestibule [18"] [24"] [30"] shall be provided. The drain pan connection shall exit the opposite
end of the coil section from the vestibule.
Cat 570 67
© 2002 McQuay International • www.mcquay.com • 800-432-1342
This document contains the most current product information as of this printing. For the most up-to-dateproduct information, please go to www.mcquay.com.
D. Refrigerant Coils: 1. Coils designed for use with Refrigerant [R-22] [R-134a] [other]. Fins shall have a minimum thickness of [0.0075"]
[0.0095"] of (aluminum), [0.006"] [0.0075"] [0.0095"] of (copper) with full drawn collars to provide a continuoussurface cover over the entire tube for maximum heat transfer. Tubes shall be mechanically expanded into thefins to provide a continuous primary-to-secondary compression bond over the entire finned length for maximumheat transfer rates. Bare copper tube shall not be visible between fins..
2. Refrigerant coils shall be provided with round seamless 5/8" O.D. copper tubes on 1-1/2" centers, staggered inthe direction of airflow. All joints shall be brazed.
3. Sweat type copper suction connections located at the bottom of the suction headers for gravity oil drainage.Coils shall be uniformly circuited in a counterflow manner to [row] [face] [row and face] control capacity reduction.Pressure type liquid distributors used. Coils shall be tested with 315 pounds air pressure under warm water, andsuitable for 250 psig working pressure. Coils shall be ARI certified and Underwriters Laboratories, Inc. listed.
4. (Opt.) Coil piping vestibule [12"] [18"] [24"] [30"] shall be provided. The drain pan connection shall exit the oppo-site end of the coil section from the vestibule.
E. Steam Coils: 1. Fins shall have a minimum thickness of [0.0075"] [0.0095"] of (aluminum), [0.006"] [0.0075"] [0.0095"] of (copper)
with full drawn collars to provide a continuous surface cover over the entire tube for maximum heat transfer.Tubes shall be mechanically expanded into the fins to provide a continuous primary-to-secondary compressionbond over the entire finned length for maximum heat transfer rates. Bare copper tubes shall not be visiblebetween fins.
2. Steam coils shall be provided with round seamless [5/8"] [1"] O.D. [copper] tubes. Tubes on two-row coils arestaggered in the direction of airflow. All joints shall be brazed.
3. Steam coil headers shall be made of nonferrous materials using seamless copper tubing with intruded tube holesto permit expansion and contraction without creating undue stress or strain. Both the supply and return headersshall be completely encased by the coil casing. Coil shall be pitched in the unit to assure positive condensatedrainage. Orificed baffle plates shall be installed in the supply connection to ensure proper diffusion of enteringsteam. Coil connections shall be [carbon steel] [red brass] with connection size to be determined by manufac-turer based upon the most efficient coil circuiting.
4. Steam coils shall be tested with 315 pounds air pressure under warm water and suitable for 150 psig workingpressures.
5. (Opt.) A piping vestibule on [standard base rail unit (18") (24") (30")] [curb ready base unit (18") (24") (30")] shallbe of standard cabinet construction sealed to the coil section with splice channels. Factory installed vestibulesshall only be provided on the supply connection end of the coil and only on coils with same end distributor con-nection. The drain pan connection shall exit the opposite end of the coil section from the vestibule.
2.08 FILTERSA. [Filter section with filter racks and guides with [hinged and latching access doors on either, or both sides] for side
loading and removal of filters] [Filter section with front loading frames and clips].B. Filter media shall be UL 900 listed, Class I or Class II.C. [Flat] [Angle] arrangement with (2") (4") deep [pleated] [disposable] panel filters.D. [Bag] [Cartridge] type arrangement with holding frames suitable for (2") (4") prefilter and final filter media and blank-
off sheets, extended surface [bag] [cartridge] media filters with [60-65] [80-85] [90-95] percent dust spot efficiency.Bag filter media [12"] [15"] [19"] [22"] [30"] [36"] deep. Cartridge filter media is [4"] [12"] deep. (Provide microbialresistant Intersept coating on all filters). Designed for (side) (front) loading of filters.
2.09 ADDITIONAL SECTIONSA. Mixing box section shall be provided [with] [without] factory mounted low leak airfoil blade outside and return air
dampers of galvanized steel in a galvanized frame. Dampers shall be hollow core airfoil blades, fully gasketed andhave continuous vinyl seals between damper blades. Dampers shall have stainless steel jamb seals along end ofdampers. Linkage and ABS plastic end caps shall be provided when return and outside air dampers sized for fullairflow. Return and outside air dampers of different sizes must be driven separately. (Opt.) Weather hoods shall beincluded for fresh air dampers located on the (end) (drive side) (opposite drive side) of the mixing box.
B. Economizer section shall be provided [with] [without] factory mounted low leak hollow core airfoil blade outside air andreturn air dampers, and exhaust damper. Dampers shall be constructed of galvanized steel in a galvanized frame.Outside and return dampers fully gasketed. Continuous vinyl seals between damper blades. Stainless steel end sealsalong end of dampers. Linkage and ABS plastic end caps provided when return and outside air dampers are the samesize. Return and outside air dampers of different sizes must be driven separately. (Opt.) Weather hoods shall beincluded for fresh air dampers located on the (drive side) (opposite drive side) of the economizer. Weather hoods forexhaust air dampers shall be located on the (drive side) (opposite drive side) of the economizer.
C. Access section shall provide access between components shall be a minimum of [16"] [24"] [30"] [36"] [42"] [48"][54"] deep. (Opt.) Access doors of galvanized steel for flush mounting, with gasket, latch and full size (minimum of4.5") handle assembly. Provide (microbial resistant coated galvanized) (stainless) steel drip pan in access section.Floor plate [access sections] [all sections] shall be constructed of [G90 galvanized steel (nom. 20 gauge) (nom. 14gauge)] [304 solid stainless steel (nom. 20 gauge) (nom. 14 gauge)] [Aluminum tread plate .125 inch thick] toaccommodate walk-in weight of service technician.
68 Cat 570
D. Diffuser section shall be mounted on leaving side of supply fan section providing uniform air distribution acrossdownstream components. Perforated diffuser plate shall be secured over blast area of fan to disperse air flow.
E. Blender / air mixer section to provide proper air mixing and distribution of the outside and return airstreams. Properspacing provided in the direction of airflow as recommended by the blender manufacturer [Blender Products][Kees].
F. Sound attenuator section shall be provided by the air handling unit manufacturer as an integral section of the unit toattenuate fan noise at the source. Provide acoustic performance and air pressure drop per the schedule. Silenceracoustic insulation shall be covered with perforated sheet metal. [Provide (tedlar) (fiberglass cloth) liner betweenperforated sheet metal and acoustic insulation].
G. Manual section shall be provided by the air handling unit manufacturer as an integral section of the unit for fieldinstallation of special components. Section length to be determined by component supplier, with a minimum lengthof 12"
H. (Inlet) (Discharge) plenum section shall be provided as the (first) (last) section in the direction of airflow. The plenumshall provide single or multiple (top) (end) (bottom) openings.
I. Face and bypass section shall be provided to modulate airflow through and around heat transfer coils. Dampersshall be an integral part of the unit assembly. [Internal face and bypass shall be contained in the standard cabinetheight] [External face and bypass arrangement shall be provided with factory provided bypass duct of same cabinetconstruction as the remainder of the unit. Field fabricated bypass ducts are not acceptable]. Blank-off and divisionsheets, internal linkage, access [panel] [doors] installed by unit manufacturer. Face and bypass dampers shall beof low leak design, opposed blade, with vinyl bulb edging and stainless steel edge seals, galvanized steel frameand axles in self-lubricating nylon bearings.
2.10 DAMPERSA. Mixing box and economizer damper leakage: Leakage rate on fresh air, return air, and exhaust air dampers shall be
less than two tenths of one percent leakage at two inches static pressure differential. Leakage rate tested in accor-dance with AMCA Standard 500.
PART 3: EXECUTION3.01 INSTALLATION
A. Install in accordance with manufacturer’s instructions.
Cat 570 69
