general product overview - nailor · 4johmf 4qffe 14$ *oevdujpo .pupst all nailor fan powered...

FAN POWERED TERMINAL UNITS

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Providing products that incorporate the desires andrequirements of the industry we serve has traditionallybeen a primary focus at Nailor.

We listened in-depth to the engineering and contractingcommunity, asked a lot of questions and realized therewas not a single line of fan powered terminals availablethat incorporated all the design features and performancecriteria that satisfied their wishes.

After an extensive and intense period of research, designand development, we have produced a line of fanpowered terminals that satisfy the vast majority ofrequirements the HVAC industry demands.

On the next page, you can see at a glance some of theunique universal features that have been incorporatedinto Nailor fan powered terminals, providing the benefitsof high performance operation and many field-friendlyfeatures to aid installation.

In addition to the 'Diamond Flow' multi-point averagingsensor and opposed blade damper configuration of theprimary air valve that are described in detail on page A9in this catalog, all Nailor fan powered terminalsincorporate the following features and benefits.The Diamond sensor is standard on all Nailor VAVterminal units that are equipped with pressureindependent controls.

Quiet, Series Flow (Constant Volume)

Super Quiet, Series Flow (Constant Volume)

Minimum Ventilation, Series Flow (Constant Volume)

Critical Environment, Series Flow (Constant Volume)

GENERAL PRODUCT OVERVIEW


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All Nailor fan powered terminal units are currentlyequipped with single speed, direct drive, fractionalhorsepower, high efficiency, psc motors as standard.These motors are manufactured to specificationsdeveloped by Nailor specifically for the fan poweredterminal unit market. Some of the more important featuresare listed and explained below.

Motors not only provide power, but act as transformersand generators. Under certain conditions, this causesthe unused speed taps in multiple speed motors to havelarge potential or static charges present. While thesecharges are not doing any work, they will createdamage to the windings if their potential voltages aregreater than the winding insulating quality. This is oftenthe case and lifetimes are shortened. Nailor fanpowered terminal units do not suffer from this malady.All motors are single speed.

Nailor motors are designed to operate at rotationalspeeds lower than those of our competitors. Thisrequires special stator wire sizing, special capacitorsizing and special bearings. These items are covered inour specifications. This assures you of high endperformance equal to or better than any of ourcompetitors and low end ranges below any of ourcompetitors.

Low end performance is often ignored. Many times, thisis because the range is not great enough to allow muchdifference, or because the low end performance isachieved by artificial means such as manual dampers tolower the airflows. Manual dampers lower airflows, butthey increase rpm. Increased rpm put back all the noisegeneration in the fan powered terminal unit as if it werestill operating at full airflow. This is due to the noisecaused by tip speed and vibration within the unit. Highrpm, regardless of airflow, will generate high noise.

Nailor solves this problem through low rpm for lowairflows. Typically, the motors in Nailor fan poweredterminal units can rotate as low as 350 rpm at low end,shedding as many as 14 to 20 decibels in the secondand third octave bands depending on which unit is beingselected. This means real sound level selections, unitsthat can produce NC's of 30 and 35 when appliedcorrectly and wider operating ranges on individual unitsfor greater flexibility in the zone.

Low Profile, Series Flow (Constant Volume)

Super Quiet, Series Flow (Constant Volume)

Compact Design, Parallel Flow (Variable Volume)

Low Profile Design, Parallel Flow (Variable Volume)


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Nailor fan powered terminal units are equipped withpermanently lubricated motors. The motors areequipped with oilers, but the oilers are not necessary aslong as the units are operated in typical ambienttemperature conditions. The specifications call for theoil reservoirs to have at least 50% of the original oil stillin the reservoir after 50,000 hours of use under normalconditions.

All Nailor fan powered terminal units have PSC motors.The capacitors are sized to provide ample startingtorque, even when turned down to the low minimumsallowed on Nailor fan powered terminal units.

All Nailor PSC motors are the highest efficiencyavailable in the market today. This too, is controlled bythe Nailor motor specifications. Higher efficiency meanslower operating expenses.

Nailor designed its own solid state fan speed controllers.They are designed to operate with the specific motor andblower combinations as used in Nailor fan poweredterminal units. They provide smooth and infiniteadjustment of motor speed from maximum to the lowestpreset low end limits found in the industry.

The speed controllers are largely responsible for theoperating ranges of the motors. High quality standardsallow very accurate low end stops. This assures Nailorcustomers of sound levels and performance as cataloged.

The matching of the motors and speed controllers allowsNailor fan powered terminal units lower watt consumptionas motor rpms are reduced. High efficiency is maintainedfrom high end performance to low end performance. Veryfew of our competitors can make a similar claim.

In addition to those items listed above, Nailor holds downnoise levels in the occupied space with heavy gaugemetal casings, dual density insulation and multipleisolation points between motors and casings. Nailor is asquiet as any and far quieter than most of our competitorswhen controlling similar airflows on competitiveequipment. Check out the sound data in this catalog.Notice there is no fine print covering the conditions underwhich the data does not apply. Notice that the minimumstatic requirement on series fan powered terminal units is0.05" w.g. (12 Pa). Then notice the correspondingly lowinlet static pressures on the parallel units. Notice thatNailor sound data is AHRI certified and independentlycertified by Energistics Laboratory, Houston. Comparethat to the competition.

Fan Powered Terminal Units are an economical means ofboth cooling and periodically heating the perimeter zonesof a building utilizing a single duct control system. Inaddition to inherent VAV economies, fan terminals utilizethe free heat derived from lighting, people and otherequipment and induce this warmer plenum air from thebuilding core ceiling plenum space and re-circulate it torooms calling for heating. If additional heating is required,optional supplementary heating coils may be activated.The need for a central source of warm air is eliminated.

During weekend or night-time operation, the central fansmay be turned off. Heat, if required, may be provided bythe terminal unit fan itself.

Fan Powered Terminal Units are the most popular designfor office buildings because they provide performancebenefits by way of lower first cost, (such as reducedcentral system fan HP and smaller ductwork), loweroperating cost, the recovery of waste heat and thecapacity for improved air circulation and diffuserperformance.

Fan terminals are available in two basic configurations;series or parallel flow. Each contains a fan motor assemblyand a variable air volume damper to modulate primary air.

In a series unit (Fig. 1), the fan sits in the primaryairstream and runs constantly when the zone isoccupied. In a parallel unit (Fig. 2), the fan sits outsidethe primary airstream and runs intermittently.

Although both terminals can provide central fan HPsavings, each terminal has different inlet static pressurerequirements. Series fan terminals boost both induced airand primary air, so the inlet static pressure need onlyovercome the loss across the damper [less than 0.05"w.g. (12 Pa) with Nailor terminals]. Parallel fan terminalsrequire enough static pressure to overcome the lossesacross the damper, the downstream ductwork anddiffusers [typically 0.25 — 0.5" w.g. (62 — 125 Pa)].

A series fan powered terminal unit mixes primary air withinduced plenum air by using a continuously operating fanduring the occupied mode. It provides a constant volumeof air to the space regardless of load.

As the cooling load decreases, the zone thermostatthrottles the primary air valve. The terminal fan makes upthe difference by inducing more return air from theplenum. At low cooling loads, the primary air may closeor go to a minimum ventilation setting. If the zonetemperature drops still further, the thermostat canenergize optional supplemental heat. The sequencereverses when the load is increased.

The series terminal is therefore a constant volume,variable temperature unit. (See Fig. 3).

Series units should only be used with pressureindependent controls. Series fans must be adjusted to

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match the maximum cooling cfm, to ensure that theprimary air does not exceed the fan cfm as this wouldresult in the short-circuiting of primary air directly intothe ceiling plenum and waste energy. A pressureindependent controller and inlet flow sensor controls theprimary air valve to compensate for changes in inlet staticpressure and ensures design cfm is maintained.

Also called an intermittent fan terminal unit, a parallel unitmodulates primary air in response to cooling demandand energizes the integral fan in sequence to deliverinduced air to meet heating demand. The induction fanoperating range should slightly overlap the range of theprimary air valve. A backdraft damper ahead of theterminal fan prevents conditioned air from escaping intothe return air plenum when the fan is off.

During full cooling demand, the thermostat positions theprimary air valve for full airflow while the fan is de-energized. As the cooling load decreases, less primaryair is delivered to the zone as the thermostat modulatesthe valve (functioning as a single duct VAV terminal).

The primary air damper may be set to a minimumposition, (to ensure continuous ventilation), or zero(closed). At a reduced demand for cooling, the fanbecomes energized. The fan has an adjustable startingpoint and may alternatively be set to energize at the pointthat the primary air valve reaches its minimum position or

before it reaches its minimum setting. Overlapping thefan start point and primary air valve minimizes thelikelihood of air stagnation in the conditioned space andthe noticeable air surge when the fan energizes.

With the fan energized, the delivered air temperatureapproaches that of the ceiling plenum. If the zonetemperature continues to drop, the thermostat automaticallyenergizes optional supplemental electric or hot water heat,thereby raising discharge air temperature. Increasing thecooling load reverses the sequence. The parallel terminalunit is therefore variable volume constant temperature onthe cooling cycle and essentially constant volume variabletemperature on the heating cycle. (See Fig. 4).


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ELECTRICALCONTROLS

ENCLOSURE

PRIMARYAIR VALVE

PRIMARYAIR

DISCHARGEAIR OPTIONAL

ELECTRIC HEAT

FAN/MOTOR

INDUCEDPLENUM

AIR

ELECTRICALCONTROLS

ENCLOSURE

DISCHARGEAIR OPTIONAL

ELECTRIC HEAT

FAN/MOTOR

INDUCEDPLENUM

AIR

PRIMARYAIR

PRIMARYAIR VALVE

25

50

75

100TOTAL AIR MAXIMUM

MINIMUM

COLD HOT

PERC

ENT

DES

IGN

CFM

0

PRIM

ARY

AIR

PLENUM AIR

ROOM TEMPERATURE INCREASE

HEAT

50

100

90

80

70

60

COLD HOT


FAN ANDHEAT

FANONLY

COOLING

DELI

VERE

D A

IR T

EMPE

RATU

RE (°

F)

25

50

75

100

PERC

ENT

DES

IGN

CFM

0


50

100

90

80

70

60

COLD HOT


FAN ANDHEAT

FANONLY

COOLING

DELI

VERE

D A

IR T

EMPE

RATU

RE (°

F)

TOTAL AIR

MAXIMUM

MINIMUM

COLD HOT

PRIM

ARY

AIR

PLENUM AIR

HEAT

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Fan terminals are installed in the ceiling return air plenumand take return air from the plenum or have the inductionport(s) ducted to the space. For maximum heat pick-upand minimum sound radiation, the assembly shouldideally be located in the ceiling cavity, preferably over acorridor, toward the building core.

Careful consideration should be given to both overallsound level and change in sound level in the space. Withseries terminals the sound remains virtually constant asthe fan runs continuously. With parallel units, theintermittent fan operation will cause a change in soundlevels in the occupied space. This change may be morenoticeable than a constant sound, even if the constantsound is at a higher level (i.e., a series unit), especially inthe fall and spring when fan cycling occurs frequently.

When properly applied, the relatively long distancebetween the fan terminal discharge outlet and theconditioned space it serves minimizes any concern aboutdischarge sounds in the space due to the terminal andonly the radiated sound, below the space where it islocated, need be considered.

Both the primary air damper and fan act as soundsources in both units and each generates discharged andradiated sound.

Series units will have the fan sized for the full airflow anddownstream resistance. Parallel fans with a reduced airvolume heating load should be sized for a reducedresistance downstream of the terminal. While series fansdeliver the total design cooling air volume, parallel unitsgenerally deliver 50 to 75% of that amount. Therefore,series units usually require a larger fan or the same fanrun at a higher speed.

Fan Powered Induction Systems combine the energysaving diversity of single duct VAV shut-off systems withthe additional benefits of heat reclamation. In mostclimates, fan powered systems are a lower operatingcost alternative. Plenum air heating eliminates theinefficiencies inherent in reheating cold primary air.Utilizing warmer plenum air allows for recovery of heatfrom lighting and other heat sources in the building.

Fan Powered Terminals move more air through a room atlow cooling loads and during heating compared to singleduct VAV reheat systems, thereby providing improved aircirculation.

Series flow terminals are rapidly becoming the terminal ofchoice for their superior characteristics of constantvolume delivery, temperature blending and constantsound levels as compared to parallel flow terminals.Some applications may demand constant air volumedelivery regardless of load, e.g., conference rooms,lobbies and large open office areas. Because the seriesunit supplies the downstream external static pressureand reduces the central system pressure requirement,office buildings can take advantage of this design featureand downsize central air handling equipment andassociated ductwork. Series terminals are ideally suitedfor use in low temperature (ice storage) air systems totemper cold [40 – 48°F (4.4 – 9.0°C)] air with warmplenum air before delivering it to the zone

Parallel units may be used in perimeter zones of buildings where loads vary during occupied hours and core zones maintain a constant cooling requirement utilizingsingle duct shut-off type terminal units. Variable volumeairflow to the zone is acceptable in these applications andlow installation and operating costs are desired.

Dependent upon location, loading, operating hours andventilation requirements, either type of fan terminal may bemore advantageous. For an equivalent zone size, seriesterminals may be a little higher in first cost as the fan issized for total airflow whereas a parallel terminal fan issized for the reduced heating airflow only. When fan size isthe same however, installed cost is approximately equal.Series terminals however unlike parallel, reduce theoperating pressure requirement at the central AHU andprovide energy savings.

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Fan located in the primary airstream (inseries).

Continuous operation during the occupiedmode whether heating or cooling. Intermittentoperation (night cycle) available during theunoccupied mode.

Constant volume, variable temperature at alltimes. Primary and plenum air are mixed invarying amounts; supplemental heat raisestemperature still further in stages. Deliversdesign airflow regardless of load.

Interlocked with central system fan to preventair from spilling out of induction ports and intoceiling-plenum. Anti-backward rotation designfeature built in.

Fan sizing should meet the greater of designcooling or heating airflow to the zone (usually100% of cooling) at required downstreamstatic pressure.

Size for design cooling flow with sufficient inletpressure [lower 0.05" w.g. to 0.20" w.g. (12 to50 Pa)] to overcome primary air valvepressure loss only. Terminal fan providesstatic pressure for downstream losses.Requires lower horsepower central fan.

Continuous fan operation produces slightlyhigher (for a given volume), but constantsound pressure levels in the occupied space.This constant sound level may be lessnoticeable than an intermittent fan operation.

Constant – High ventilation rates and room airmovement helps ensure superior occupantcomfort.

Fan sits outside the primary airstream (inparallel).

Intermittent operation during occupied andunoccupied (night cycle) periods. Fan cyclesonly under heating and minimum coolingloads.

Variable volume, constant temperature duringcooling. Constant volume, variabletemperature during heating. Fan andsupplementary heat raise temperature instages.

Based upon zone temperature deviation fromthermostat set point. No interlock with centralsystem fan required. Anti-backward rotationdesign feature built-in.

Size for design heating load (typically 40 to75% of design primary cooling airflow) atreduced downstream static pressure.

Size for design cooling flow with sufficient inletpressure [higher 0.3" w.g. to 0.6" w.g. (75 to149 pa)] to overcome terminal unit, heatingcoil, downstream duct and diffuser pressurelosses. Requires higher horsepower centralfan.

Fan does not run under cooling loads, offeringacoustic performance similar to single ductVAV terminal with attenuator. Under heatingloads, the fan cycles intermittently whichchanges sound pressure levels in theoccupied space.

Variable – Possibility of air stagnation atreduced air volumes, particularly in largerzones with partitioned office space.

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Since 1985, equipment manufacturers have used ECM motorsin residential air conditioners and furnaces. These motorshave made it possible to achieve SEER ratings of 12 andhigher. Nailor first introduced the GE ECMTM motor to thecommercial HVAC market (ASHRAE Journal, April 1997) asan option for use in series fan powered terminal unitapplications.

The ECM (Electronically Commutated Motor) is an ultra highefficiency programmable brushless DC motor utilizing apermanent magnet motor and a built-in inverter. DC motorsare significantly more energy efficient than AC motors andmuch easier to control. The major weakness of series fanpowered terminal units until now, has been their low fan motorefficiency. The widely used single speed fractional horsepowerpermanent split capacitor (PSC) induction motor incombination with an electronic SCR speed controller isextremely inefficient at typical operating conditions. Due toacoustical considerations, the fan motor is usually adjusted tooperate at considerably less than full load (where PSC motorefficiencies may be as high as 62%). PSC motor efficiencydrops off dramatically when turned down; typically by at leasthalf. Installed PSC motor efficiencies are therefore typically inthe range of only 12 – 45%. ECM motors in contrast, maintaina high efficiency of 65 – 72% at all speeds.

In addition to lower operating costs, EPICTM/ECM motortechnology allows Nailor to pre-set the fan airflow volume atthe factory.

The graphs below show the lower watts per cfm (translatinginto lower operating costs as shown on the next page) andwider operating ranges of series terminals employing ECMmotors versus PSC induction motors.

Soft starts and slewed speed ramps are programmed into theECM motor eliminating stress transmitted to the mountingbracket or hardware. They incorporate ball bearings providingpermanent lubrication unlike sleeve bearings requiring aminimum rpm operation for oiling. The wider operating rangeof the ECM motor allows each model to actually replace two

models using induction motors. This feature alone providesseveral benefits; a simpler product line to choose from, little orno equipment changes necessary when tenants change, moresimilar sized units on the job, decreased spare parts inventoryand increased contractor flexibility. The low operatingtemperature of the ECM motor (essentially ambient) requiresvery little energy to offset the heat gain from the motor versusPSC motors which run hot [typically around 90 – 150°F (32 –66°C)].

Watts per cfm for 35S 2 & 3

cfm

Watt

s per

cfm

Watt

s per

cfm

Watts per cfm for 35S 4 & 5

0.60

0.50

0.40

0.30

0.20

0.10

0.00

150 250 350 450 550 650 750 850 950 1050

0.60

0.50

0.40

0.30

0.20

0.10

0.00

cfm

700 900 1100 1300 1500 1700 1900

Size 3 with PSC motor


Size 3 with ECM motor



Size 5 with ECM motor

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These features also extend the life of the ECM motor, whichare expected to provide an average 90,000 hours ofoperation (versus 50,000 hours for a typical PSC motor).This translates into about 25 years for a typical series fanpowered terminal unit. In addition to these standard featuresare two primary benefits, energy savings and the ability topre-set the fan airflow volume at the factory.

Pre-setting the fan airflow (cfm) has always been a problemfor fan powered terminal manufacturers for two majorreasons. First is that AC motors are not synchronousmachines and second the rpm and consequently the unit cfm,changes when static pressure changes. The difficulty in pre-setting the fan lies in estimating the motor workload requiredat the job site in actual working conditions. The fan will notproduce the same volume of air as it did at the factory withoutthe duct work. Because there is no way to accurately predict thedownstream static pressure as it would exist at the job site, itwas impossible to pre-set the fan cfm. The ECMmotors are DCand inherently synchronous machines. The motors areprogrammed to calculate the work they are doing and thencompare the work accomplished to the cfm requirement. Theintegral microprocessor based controller automatically adjuststhe speed and torque in response to system pressure changesand pressure independent constant airflow operation isachieved without the need for an external flow sensorfeedback loop.

Nailor series fan powered terminal units incorporate our owncustom EPICTM fan controller. An electronic PWM volumecontrol device that allows adjustment of airflow volume. Thisvalue can be pre-set on the assembly line. It is fieldadjustable either manually using a screwdriver andvoltmeter locally at the terminal or more conveniently,remotely using a 0 – 10 VDC analog output from a digitalcontroller via the BAS. A fan volume versus DC voltscalibration chart is provided. The importance of this featureis that the balancer never has to go into the ceiling to adjustthe fan. This relieves the balancer of most of his work perzone on fan powered terminal units and related headaches.This also removes the uncertainty of diffuser flowmeasurement with hoods. Laboratory tests show the fan cfmto be accurate within +/- 5% of the factory set point. This isa huge benefit to the owner, the controls contractor, themechanical contractor and the ceiling contractor.

The following graphs show the energy savings of units withECMmotors compared to units with Nailor engineered PSCmotors Since PSC motors used by Nailor are builtspecifically for Nailor fan powered terminal units and aremore efficient than those used by most of our competitors.

A comparison using Nailor units with ECM motors and acompetitor's units with PSC motors would show evengreater savings.

The typical range of operation for the size 3 would be 200 toabout 900 cfm (94 to 425 l/s). The typical range of operationfor the size 5 unit would be 700 to 1700 cfm (330 to 802 l/s).

The payback period varies. It depends on which unit youuse, where you set the cfm, how much you run theequipment and what you are paying for electricity. Thegraphs above are calculated assuming 66 hours per weekoperations and $ .10 per kWh. If you run the equipmentlonger in your building or if you pay more for electricity, thepayback will change proportionally. Considering the pre-setcapability of the motor, there should be an up-front savingson balancing. That should be rebated to the owner andshould be considered as part of the payback from the motor.Typically, with the balancing rebate and the operatingexpenses as shown above, the payback period should beanywhere from 6 to 18 months.

Ann

ual D

olla

rs

$200

$150

$100

$50

$0200 400 600 800 1000

Size 4 & 5 PSC vs. Size 5 GE ECM™ Motors

Ann

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rs$300

$250

$200

$150

$100

$50

$0700 1000 1300 1600 1900

PSC Motor ECM Motor

Size 2 & 3 PSC vs. Size 3 GE ECM™ Motors

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The recommended airflow ranges below are for fan poweredterminal units with pressure independent controls and arepresented as ranges for total and controller specific minimumand maximum airflow. Airflow ranges are based uponmaintaining reasonable sound levels and controller limits usingNailor’s Diamond Flow Sensor as the airflow measuring device.For a given unit size, the minimum, auxiliary minimum (whereapplicable) and the maximum flow setting must be within therange limits to ensure pressure independent operation,accuracy and repeatability.

Minimum airflow limits are based upon .02" w.g. (5 Pa)differential pressure signal from Diamond Flow Sensor onanalog/digital controls and .03" (7.5) for pneumatic controllers.This is a realistic low limit for many transducers used in thedigital controls industry. Setting airflow minimums lower, maycause hunting and failure to meet minimum ventilationrequirements. Where an auxiliary setting is specified, the valuemust be greater than the minimum setting.

The high end of the tabulated Total Airflow Range on pneumaticand analog electronic controls represents the Diamond FlowSensor’s differential pressure reading at 1” w.g. (249 Pa). Thehigh end airflow range for digital controls is represented by theindicated transducer differential pressure.

AHRI Standard 880 "Performance Rating of Air Terminals" is themethod of test for the certification program. The "standard ratingcondition" (certification rating point) airflow volumes for eachterminal unit size are tabulated below. These air volumesequate to an approximate inlet velocity of 2000 fpm (10.2 m/s).

When digital or other controls are mounted by Nailor, butsupplied by others, these values are guidelines only, basedupon experience with the majority of controls currentlyavailable. Controls supplied by others for factory mounting areconfigured and calibrated in the field. Airflow settings onpneumatic and analog controls supplied by Nailor are factorypreset when provided.

≥4

Round

0 – 225 150 30 180 25 180 25 180 200 2255 0 – 400 250 55 325 45 325 45 325 360 4006 0 – 550 400 80 450 65 450 65 450 500 5507 0 – 800 550 115 650 95 650 95 650 725 8008 0 – 1100 700 155 900 125 900 125 900 1000 11009 0 – 1400 900 200 1150 165 1150 165 1150 1285 1400

10 0 – 1840 1100 260 1500 215 1500 215 1500 1675 184012 0 – 2500 1600 350 2050 290 2050 290 2050 2290 250014 0 – 3370 2100 475 2750 390 2750 390 2750 3075 337016 0 – 4525 2800 640 3700 520 3700 520 3700 4140 452512

FlatOval

0 – 2500 1600 355 2050 290 2050 290 2050 2300 250014 0 – 3125 2100 440 2550 360 2550 360 2550 2850 312516 0 – 3725 2800 525 3040 430 3040 430 3040 3400 372518 0 – 5265 2500 750 4300 610 4300 610 4300 4800 5265

14 x 8 Rect. 0 – 2450 1560 350 2000 290 2000 290 2000 2240 245014 x 10 0 – 2950 1900 420 2400 340 2400 340 2400 2700 2950

≥4

Round

0 – 106 71 14 85 12 85 12 85 94 1065 0 – 189 118 26 153 21 153 21 153 170 1896 0 – 260 189 38 212 31 212 31 212 236 2607 0 – 378 260 54 307 45 307 45 307 342 3788 0 – 519 330 73 425 59 425 59 425 472 5799 0 – 661 425 94 543 78 543 78 543 606 661

10 0 – 868 519 123 708 101 708 101 708 790 86812 0 – 1180 755 165 967 137 967 137 967 1081 108014 0 – 1590 991 224 1298 184 1298 184 1298 1451 159016 0 – 2135 1321 302 1746 245 1746 245 1746 1954 213512

FlatOval

0 – 1180 755 168 967 137 967 137 967 1085 118014 0 – 1475 991 208 1203 170 1203 170 1203 1345 147516 0 – 1758 1321 248 1435 203 1435 203 1435 1604 175818 0 – 2485 1652 354 2029 288 2029 288 2029 2265 2485

14 x 8 Rect. 0 – 1156 736 165 944 137 944 137 944 1057 115614 x 10 0 – 1392 897 198 1133 160 1133 160 1133 1274 1392

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PARALLEL FLOWVARIABLE AIR VOLUME

35N SERIES

FEATURES:• 20 ga. (1.00) galvanized steelconstruction.• Round laminated 2 x 20 ga. (1.00)butterfly primary air damper withperipheral gasket. 90° rotation, CW toclose. 1/2" (13) dia. plated steel driveshaft. An indicator mark on the end ofthe shaft shows damper-position.Damper leakage is less than 2% ofnominal flow at 3" w.g. (750 Pa).• Round minimum 6" (152) deep inletcollars for field duct connection.• Pressure independent primaryairflow control (also available inpressure dependent configuration).• Multi-point averaging 'DiamondFlow' sensor (pressure independentcontrol only).• Access panels on underside ofterminal for ease of maintenance andservice. • Energy efficient PSC fan motor withthermal overload protection.• Motor blower assembly mounted onspecial 16 ga. (1.6) angles andisolated from casing with rubber isolators.• Adjustable solid state fan speedcontroller with minimum voltage stop.• Gasketed backdraft dampermounted on fan discharge preventsprimary air from escaping through thefan section into the ceiling plenum.

• Hinged door on fan controlsenclosure.• 3/4" (19) dual density insulation.Exposed edges coated to prevent airerosion. Meets requirements of NFPA90A and UL 181.• Available with electric or hot watersupplementary heat.• Hot water coils are mounted ondischarge of 35NW unit with slip anddrive duct connection.• All controls are mounted on exteriorof terminal providing ready access forfield adjustment.• Each terminal factory tested prior toshipment.• Single point electrical and/orpneumatic main air connection.• Discharge opening on 35N and35NE designed for flanged ductconnection.• Full primary air valve low voltageenclosure for factory mounted digitaland analog electronic controls.Controls:• Pneumatic and analog electroniccontrols. Factory supplied, mountedand calibrated.• Digital controls. Factory mountingand wiring of DDC controls suppliedby BAS Controls Contractor.

Options:• Induced air filter, 1" (25) thick,disposable type.• Primary air valve enclosure for fieldmounted controls.• Toggle disconnect switch units withelectric heat, when disconnect is anelectric heat option and includes fan).• Various 'IAQ' linings are available.• Fan airflow switch for night shutdown.• Night setback fan/heat cycle(pneumatic and analog).• Fan unit fusing.• Hanger brackets.• 'Q' option induced air attenuator.

The 35N Series provides many standard design features and excellent sound performance when compared with other designs.The 35N offers a compact and economical design that provides excellent performance in the most demanding variable airvolume/intermittent fan applications. The fan is mounted at ninety degrees to the primary airflow to provide optimum mixing.

Models:35N No Heat35NE Electric Heat35NW Hot Water Heat

Model 35NW

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DimensionsModel Series 35N • Parallel Flow

PRIMARY

ROUND INLETWITH MULTI-POINT FLOW

SENSOR

AIR

AIRFLOW

CONTROLSENCLOSURE

DW

CONTROLS ENCLOSURE

[14" (356) SIZE 2]

IH+

2" (51)

H

FAN

INDUCED AIRINLET

Dia =Nom. -1/8" (3)

17" (432)

5 3/4"(146)

1 1/2" (38)

L

IW

14" (356)

CONTROLSENCLOSURE6" (152).

8" (203) FOR14" (356) &

16" (406) INLETS

DH C W

A

CL

1" (25)

RECTANGLARDISCHARGE

FOR FLANGEDDUCT

CONNECTION

H

IH 1 1/2" (38)

FAN

OPTIONALINDUCED AIRATTENUATOR

OPTIONALINDUCED

AIR FILTER

Right hand unit, top view illustrated. Controls mounted as standard on RH side as shown. Left hand units / terminalsordered with LH controls (optional), are built as mirror image. Inlet, discharge and control enclosure are opposite of thedrawing.

Inlet Size Dim. A6 5 (127)8 6 (152)

10 7 (178)12 8 (203)14 9 (229)16 10 (254)

Primary Inlet Dimensions

Dimensional Data

UnitSize

InletSize W H L C

Induced AirInlet

IW x IH

OutletDischargeDW x DH

FilterSize

2 6, 8, 10, 12(152, 203, 254, 305)

34 3⁄4(883)

14(356)

27 9⁄16

(700)1

(25)24 9⁄16 x 10 3⁄4(624 x 273)

16 x 12(406 x 305)

26 x 13(660 x 330)

3 8, 10, 12, 14(203, 254, 305, 356)

38 1⁄4(972)

18(457)

28 9⁄16

(725)1 1⁄2(38)

25 9⁄16 x 14 3⁄4(649 x 375)

16 x 15(406 x 381)

27 x 17(686 x 432)

5 10, 12, 14(254, 305, 356)

45 5⁄8(1159)

18(457)

34 1⁄2(876)

1 1⁄2(38)

31 1⁄2 x 14 3⁄4(800 x 375)

24 x 15(610 x 381)

33 x 17(838 x 432)

6 12, 14, 16(305, 356, 406)

50 3⁄4(1289

20(508)

36(914)

1 1⁄4(32)

33 x 16 3⁄4(838 x 426)

28 x 17 1⁄2(711 x 445)

35 x 19(889 x 483)

D102


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DimensionsModel Series 35N • Parallel Flow

M

HIGH VOLTAGEENCLOSURE

LOW VOLTAGEENCLOSURE

N

AIRFLOW

11"(280)

14"(356)

ELECTRICCOIL

W

HL

6 5/8"(168)

F K

1"(25)

G

1"(25)

FAN

Electric Coil SectionModel 35NEStandard Features:• Coil installed on unit discharge.• Insulated coil element wrapper.• Automatic reset high limit cut-

outs (one per element).• Single point electrical

connection for entire terminalunit (except 600V/3 ph., whichcomes with 120V/1 ph. motor).

• Positive pressure airflow switch.• Flanged outlet duct connection.• Terminal unit with coil is ETL

Listed as an assembly.• Controls mounted as standard

on RH side as shown. Terminalsordered with LH controls(optional) are built as mirrorimage.

Standard Supply Voltage (60 Hz): • 120, 208, 240 & 277V single phase.• 208, 480 and 600V (4 wire wye) three

phase.Options:• Toggle disconnect switch (includes fan).• Door interlock disconnect switch.• Mercury contactors.• Power circuit fusing.• Class 'A' 80/20 Ni./Ch. wire.• Dust tight construction.• Manual reset secondary thermal cut out.• SCR Control.

Hot Water Coil SectionModel 35NW Available in one, two or three row. Coilsection installed on unit discharge. Righthand coil connection looking in directionof airflow standard (shown). Left hand isoptional.Standard Features:• Coil is mounted on unit discharge.• 1/2" (13) copper tubes.• Aluminum ripple fins.• Sweat Connections: Size 2 and 3 one

row, 1/2” (13) O.D. male solder. Allothers 7/8” (22) O.D. male solder.

• Bottom access panel for inspection andcoil cleaning.

• Discharge opening for slip and driveconnection.

1" (25)

C

W

CONTROLSENCLOSURE

HWCOIL

D

7"(178) E

HL

FAN

AIRFLOW

UnitSize

Outlet Duct SizeC x D W H L E

2 16 x 12 1⁄2 (406 x 318) 34 3⁄4 (883) 14 (356) 27 9⁄16 (700) 3⁄4 (19)3 16 x 15 (406 x 381) 38 1⁄4 (972) 18 (457) 28 9⁄16 (725) 1 1⁄2 (38)5 24 x 15 (610 x 381) 45 5⁄8 (1159) 18 (457) 34 1⁄2 (876) 1 1⁄2 (38)6 28 x 17 1⁄2 (737 x 445) 50 3⁄4 (1289) 20 (508) 36 (914) 1 1⁄4 (32)

UnitSize

Outlet Duct SizeF x G K H M N

2 17 x 12 (432 x 305) 24 5⁄8 (626) 14 (356) 15 7⁄8 (403) 12 1⁄2 (318)3 17 x 16 (432 x 406) 24 5⁄8 (626) 18 (457) 19 3⁄8 (492) 15 1⁄4 (387)5 25 x 16 (635 x 406) 32 5⁄8 (829) 18 (457) 18 3⁄4 (476) 15 1⁄4 (387)6 29 x 18 (737 x 457) 36 5⁄8 (930) 20 (508) 19 7⁄8 (505) 15 1⁄4 (387)


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UnitSize

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Airflow

cfm l/s

Min. InletΔPs

"w.g. Ps

NC Levels @ Inlet pressure (ΔPs) shownDISCHARGE RADIATED

Min.ΔPs

0.5" w.g.(125 Pa)

1.0" w.g.(250 Pa)

1.5" w.g.(375 Pa)

2.0" w.g.(500 Pa)

Min.ΔPs

0.5" w.g.(125 Pa)

1.0" w.g.(250 Pa)

1.5" w.g.(375 Pa)

2.0" w.g.(500 Pa)

500 236 0.49 122 - 23 30 34 35 - - 23 29 34400 189 0.32 80 - 20 28 33 33 - - 20 29 32

6 300 142 0.18 45 - - 24 29 31 - - - 25 30200 94 0.08 20 - - 21 27 30 - - - 22 24100 47 0.02 5 - - 20 24 25 - - - - -875 413 0.3 75 - - 29 32 35 - - 23 28 34700 330 0.2 50 - - 27 32 34 - - 23 29 32

8 525 248 0.11 27 - - 23 29 32 - - 20 27 30350 165 0.05 12 - - 20 27 31 - - - 22 24

2 175 83 0.01 2 - - 22 27 27 - - - - -1375 649 0.4 100 21 24 29 34 37 - - 23 30 341100 520 0.24 60 - 20 27 33 36 - - 22 28 30

10 825 389 0.15 37 - - 25 30 34 - - - 24 27550 260 0.06 15 - - 22 27 30 - - - 21 23275 130 0.02 5 - - 20 24 27 - - - - -

2000 944 0.45 112 32 32 35 35 36 - - 23 29 341600 755 0.3 75 27 29 28 32 34 - - 23 29 32

12 1200 566 0.18 45 - - 24 29 32 - - 22 25 28800 378 0.08 20 - - 20 22 25 - - - 22 23400 189 0.02 5 - - - 21 24 - - - - -

875 413 0.24 60 - - 24 29 32 20 21 30 33 36700 330 0.15 37 - - 23 29 30 - 20 28 33 34

8 525 248 0.08 20 - - 20 24 28 - - 22 27 30350 165 0.04 10 - - - 22 22 - - - 23 28175 83 0.01 2 - - - - - - - - 20 23

1375 649 0.25 62 - - 23 28 33 - 22 28 32 351100 519 0.16 40 - - 22 27 29 - 20 25 32 34

10 825 389 0.09 22 - - - 24 28 - - 23 29 31550 260 0.04 10 - - - 23 23 - - 22 27 30

3 275 130 0.01 2 - - - - - - - - - 222000 944 0.34 85 - - 24 29 34 - 23 29 32 361600 755 0.22 55 - - 22 29 32 - - 25 33 35

12 1200 566 0.12 30 - - 20 25 27 - - 25 29 33800 378 0.05 12 - - - 22 25 - - 21 24 27400 189 0.01 2 - - - 20 21 - - - 20 23

2625 1239 0.39 97 - - 25 30 34 22 23 30 33 362100 991 0.25 62 - - 23 28 30 - 20 27 32 34

14 1575 743 0.14 35 - - 20 24 27 - - 22 29 321050 496 0.06 15 - - - 22 25 - - 21 27 29525 248 0.02 5 - - - - 23 - - - 22 24

1375 649 0.26 65 - - 27 29 34 - 22 27 33 351100 519 0.17 42 - - 22 28 30 - 24 27 32 34

10 825 389 0.11 27 - - 20 25 28 - - 23 27 29550 260 0.04 10 - - - 23 27 - - - 24 27275 130 0.01 2 - - - - 20 - - - - 212000 944 0.24 60 - - 27 32 34 20 23 29 33 361600 755 0.15 37 - - 24 30 30 - - 28 33 33

5 12 1200 566 0.08 20 - - 23 27 29 - - 24 28 31800 378 0.03 7 - - - 23 25 - - 23 24 28400 189 0.01 2 - - - 20 23 - - - 21 23

2625 1239 0.3 75 - - 24 29 32 20 22 28 32 342100 991 0.19 47 - - 22 26 27 - - 24 28 31

14 1575 743 0.1 25 - - - 23 26 - - 22 25 281050 495 0.04 10 - - - 21 24 - - - 22 25525 248 0.01 2 - - - - 22 - - - - 232000 944 0.21 52 - - 24 29 32 - 20 29 33 351600 755 0.13 32 - - 22 28 25 - - 28 30 30

12 1200 566 0.07 17 - - - 23 24 - 20 22 24 29800 378 0.04 10 - - - 21 22 - - - 21 24400 189 0.01 2 - - - - 22 - - - - 202625 1239 0.22 55 - - 24 28 30 22 22 28 30 362100 991 0.14 35 - - 20 24 26 - - 27 29 30

6 14 1575 743 0.07 17 - - - 22 25 - - 20 23 271050 495 0.03 7 - - - 20 23 - - - 21 23525 248 0.01 2 - - - - 21 - - - - 213425 1616 0.25 62 24 24 27 29 33 25 27 30 32 342750 1298 0.16 40 - - 22 27 29 - 23 25 29 31

16 2050 967 0.08 20 - - 20 25 28 - - 23 27 281375 649 0.04 10 - - - 23 26 - 22 20 22 24700 330 0.01 2 - - - 22 26 - - - - 21

For performance table notes, see page B109.


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6-24-13For performance table notes, see page D110; highlighted numbers indicate embedded AHRI certification points.

Unit Inlet AirflowMin. inlet Fan and 100% Primary Air – Sound Power Octave Bands @ Inlet pressure shown

Size Size cfm l/sΔPs Minimum ΔPs 0.5" wg (125Pa)ΔPs 1.0" wg (249Pa)ΔPs 1.5" wg (375Pa)ΔPs 2.0" wg (500Pa)ΔPs

" w.g. Pa 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7500 236 0.49 122 59 57 52 47 44 46 59 58 53 48 45 47 73 66 60 54 50 53 77 71 64 57 53 57 79 75 67 58 55 60400 189 0.32 80 54 52 46 42 38 38 62 57 51 46 43 43 71 64 58 51 49 51 76 71 63 55 53 56 77 73 66 57 54 58

6 300 142 0.18 45 52 46 40 36 32 30 62 56 49 44 41 41 70 63 57 49 48 49 72 68 61 53 51 54 74 72 64 56 54 58200 94 0.08 20 50 38 31 27 - - 57 52 44 39 37 36 65 60 54 47 46 46 66 64 59 51 50 52 64 66 61 55 52 56100 47 0.02 5 - - - - - - 55 52 45 40 38 36 55 54 52 46 44 44 54 54 55 50 46 47 54 57 58 53 49 51875 413 0.30 75 56 54 50 48 45 45 62 60 54 52 49 49 71 67 61 57 53 55 77 71 65 59 56 60 79 76 69 57 57 61700 330 0.20 50 55 51 45 44 40 38 65 60 53 50 48 48 70 66 59 54 52 54 74 72 65 56 56 59 75 73 67 56 57 60

8 525 248 0.11 27 - 44 38 38 32 29 61 57 49 46 45 43 67 64 57 50 51 52 71 69 64 54 55 57 71 72 66 54 56 58350 165 0.05 12 - 38 31 29 20 - 58 54 47 44 43 41 62 62 55 48 50 50 64 65 60 52 54 55 64 67 64 54 54 55

2 175 83 0.01 2 - - - - - - 55 52 46 43 42 39 55 59 54 47 48 47 56 57 60 50 53 51 58 59 64 60 59 641375 649 0.40 99 60 58 55 50 50 49 62 61 57 51 51 51 69 67 64 55 55 57 75 73 69 59 58 62 76 76 71 59 58 631100 519 0.24 60 56 52 50 45 44 41 61 59 56 49 49 48 68 66 62 53 54 55 72 71 67 57 57 61 73 73 67 57 58 62

10 825 389 0.15 37 51 46 43 39 36 32 60 57 53 46 47 45 65 64 59 50 52 53 68 68 65 54 56 42 68 71 68 54 56 59550 260 0.06 15 - 38 34 29 23 - 56 53 48 43 43 40 60 62 57 48 51 51 63 63 62 52 54 57 62 64 64 53 53 56275 130 0.02 5 - - - - - - 51 51 47 42 42 38 53 56 55 46 47 47 55 58 61 50 51 52 55 60 63 62 61 652000 944 0.45 112 62 59 55 52 50 51 62 59 55 52 50 51 68 67 63 57 56 58 74 73 67 59 59 62 76 76 71 60 60 641600 755 0.30 75 57 54 49 46 44 43 61 59 55 50 50 49 69 67 62 54 55 57 72 72 66 58 58 61 73 74 69 58 58 63

12 1200 566 0.18 45 51 45 42 38 35 30 61 57 53 47 46 46 67 66 60 52 54 55 68 69 64 55 57 60 69 71 67 56 56 59800 378 0.08 20 50 39 34 31 26 - 57 53 49 44 45 42 61 61 56 49 51 51 63 66 62 53 55 57 66 66 64 54 53 55400 189 0.02 5 49 35 29 23 - - 52 50 46 42 42 38 54 57 56 48 48 48 56 59 59 51 51 51 57 60 62 59 58 63875 413 0.24 60 59 55 50 48 46 46 64 59 53 52 49 50 72 68 61 57 55 57 76 72 64 59 57 61 75 74 66 59 58 62700 330 0.15 37 55 50 44 44 41 39 67 58 52 51 49 49 70 66 58 54 53 55 73 71 62 56 56 59 75 72 65 56 57 61

8 525 248 0.08 20 - 41 36 35 31 27 62 57 49 46 46 45 66 64 56 50 52 53 68 67 60 53 54 57 68 70 63 54 56 58350 165 0.04 10 - - 28 25 - - 57 52 44 42 43 41 62 61 53 47 50 51 64 65 58 51 53 56 64 64 61 53 52 53175 83 0.01 2 - - - - - - 52 48 44 40 41 38 54 54 52 46 47 47 55 56 56 49 50 51 55 57 59 59 59 631375 649 0.25 62 58 55 53 48 47 46 62 61 58 51 51 50 68 67 61 54 55 56 71 71 65 57 58 61 72 75 68 57 59 621100 519 0.16 40 54 50 48 42 41 38 61 58 54 48 49 47 67 67 59 52 54 55 69 70 63 55 57 59 71 72 67 55 57 60

10 825 389 0.09 22 50 43 40 34 31 24 60 55 50 44 46 44 64 63 56 49 52 52 67 68 61 53 55 57 67 71 65 54 56 58550 260 0.04 10 - 36 31 26 - - 55 51 45 41 43 40 62 62 55 48 51 52 62 66 60 51 54 55 63 66 63 53 54 55

3275 130 0.01 2 - - - - - - 52 50 45 40 41 39 54 55 53 46 49 48 55 56 56 50 51 51 57 60 58 60 61 662000 944 0.34 85 62 59 58 51 50 50 64 62 59 52 52 53 70 69 64 55 57 59 73 72 67 58 59 63 75 76 70 59 60 651600 755 0.22 55 57 53 52 45 44 41 62 60 56 49 51 50 68 66 61 53 56 57 71 72 65 56 59 62 72 74 69 57 59 64

12 1200 566 0.12 30 50 46 43 37 34 28 59 56 52 45 48 46 66 65 59 51 55 56 67 69 63 54 58 60 68 70 66 54 57 61800 378 0.05 12 - 36 31 24 - - 56 51 47 42 44 41 60 61 57 49 54 55 61 63 59 51 56 58 63 63 61 53 55 57400 189 0.01 2 - 35 29 20 - - 49 49 46 41 45 42 52 55 53 47 50 51 56 58 57 50 54 56 54 58 57 62 62 662625 1239 0.39 97 66 64 60 55 52 50 67 64 61 55 54 53 72 69 64 58 58 60 74 73 66 60 60 63 75 76 70 59 61 652100 991 0.25 62 62 59 54 49 47 43 64 61 56 51 52 50 69 67 61 55 57 58 70 71 64 57 59 62 73 73 68 57 60 63

14 1575 743 0.14 35 55 52 45 40 36 30 60 56 51 47 49 46 66 64 58 52 55 56 68 68 62 55 58 60 69 70 65 56 58 611050 495 0.06 15 48 41 34 29 22 - 56 52 47 44 47 44 60 60 56 49 53 54 62 64 60 52 56 58 64 65 63 54 56 59525 248 0.02 5 - - 24 - - - 49 49 45 42 44 42 54 57 53 48 51 52 55 59 57 51 53 56 58 62 61 59 60 641375 649 0.26 65 59 55 55 50 49 49 65 61 59 52 52 53 71 69 64 56 56 59 73 72 66 57 58 61 72 75 70 57 59 631100 519 0.17 42 53 49 48 43 41 39 62 58 55 48 49 49 69 66 61 52 54 56 71 70 65 56 57 61 72 72 68 56 58 62

10 825 389 0.11 27 50 43 42 36 34 29 61 56 52 45 47 46 66 64 58 50 53 54 67 68 62 53 56 59 69 70 66 54 57 61550 260 0.04 10 - 37 32 27 - - 58 53 48 43 45 43 63 62 57 49 52 53 63 65 61 51 54 57 66 68 65 53 54 57275 130 0.01 2 - - - - - - 51 49 46 40 41 40 53 54 53 45 48 48 55 58 57 50 52 54 56 60 60 61 61 662000 944 0.24 60 59 56 55 49 49 48 63 61 58 52 53 53 70 69 65 56 58 60 71 73 67 59 60 63 72 75 70 59 61 651600 755 0.15 37 55 51 49 44 43 40 62 59 56 50 51 50 68 68 62 54 56 58 70 72 66 57 59 63 71 72 68 58 60 54

5 12 1200 566 0.08 20 49 44 41 37 34 29 59 56 52 47 49 46 65 66 61 52 55 57 66 69 64 55 57 60 68 71 68 56 58 62800 378 0.03 7 - 36 32 28 - - 55 53 49 44 46 44 61 63 59 50 53 54 62 65 63 53 56 59 64 66 64 55 56 59400 189 0.01 2 - - 29 22 - - 51 52 48 43 41 43 55 57 55 48 51 51 57 59 59 52 54 56 57 61 61 61 61 652625 1239 0.30 75 63 59 56 51 49 50 65 61 58 53 52 52 71 67 62 56 56 59 71 71 66 58 59 63 73 73 69 59 59 632100 991 0.19 47 58 52 50 45 43 41 63 58 55 49 50 51 68 65 58 54 55 57 69 68 64 57 58 62 71 69 66 58 58 62

14 1575 743 0.10 25 51 45 42 37 34 30 58 52 49 45 46 44 64 61 58 51 53 55 65 64 62 55 56 59 68 66 64 56 56 601050 495 0.04 10 - 36 31 27 20 - 53 51 48 43 45 44 60 57 55 49 51 53 61 60 58 52 54 57 63 62 61 53 54 58525 248 0.01 2 - - 23 - - - 48 46 44 40 41 40 53 55 53 48 50 52 55 56 56 51 52 56 56 58 58 60 61 642000 944 0.21 52 62 56 54 49 49 47 64 61 59 52 53 52 69 67 62 55 56 57 71 71 66 58 59 61 72 73 69 58 60 631600 755 0.13 32 56 50 49 43 43 39 62 59 56 49 51 50 66 65 60 53 55 56 69 70 65 56 59 61 70 70 67 56 58 61

12 1200 566 0.07 17 49 44 41 36 34 30 60 55 51 46 48 45 63 63 58 51 54 55 65 66 62 54 57 59 66 65 64 55 57 60800 378 0.04 10 - 35 31 28 22 - 55 51 48 44 45 42 57 58 56 49 52 44 60 60 59 52 55 57 62 62 62 54 55 58400 189 0.01 2 - 33 28 23 - - 48 47 46 41 43 40 51 52 53 47 49 19 54 56 57 51 53 54 55 57 59 60 60 642625 1239 0.22 55 64 57 55 50 49 48 66 60 57 53 52 52 69 67 62 56 56 58 70 70 65 58 58 61 73 72 67 59 59 622100 991 0.14 35 59 51 49 44 43 39 63 56 53 48 49 48 66 64 60 54 55 56 68 67 63 56 58 60 69 68 65 57 58 61

6 14 1575 743 0.07 17 52 44 41 36 33 29 58 53 49 45 47 44 62 60 56 51 53 53 63 63 60 54 56 58 66 64 62 56 56 591050 495 0.03 7 - 35 29 25 - - 53 50 46 43 44 41 55 55 53 48 51 51 59 57 57 52 54 56 61 60 59 55 54 57525 248 0.01 2 - - - - - - 47 44 44 40 40 38 51 50 50 47 48 49 54 54 54 52 52 54 55 56 57 64 63 673425 1616 0.25 62 72 67 63 60 57 55 73 67 64 60 58 57 73 69 65 61 60 60 75 71 67 62 62 64 76 74 70 61 62 652750 1298 0.16 40 67 61 57 53 51 47 67 62 58 54 54 52 70 65 61 57 58 58 72 70 65 60 60 63 72 70 67 59 60 64

16 2050 967 0.08 20 60 54 48 44 42 37 62 58 54 50 50 48 65 62 58 53 56 56 66 65 62 57 59 61 69 66 64 58 59 621375 649 0.04 10 52 42 36 33 30 27 54 49 46 44 46 41 60 57 55 51 54 54 61 61 59 55 57 59 63 63 62 57 57 62700 330 0.01 2 - - 27 23 - - 50 48 46 44 45 42 52 53 52 49 52 52 56 57 57 54 55 58 56 59 59 57 57 62


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UnitSize

InletSize

Airflow

cfm l/s

Min. InletΔPs

"w.g. Ps

Primary Air Only – Sound Power Octave Bands @ Inlet pressure shownMininum ΔPs 0.5" w.g. (125 Pa) ΔPs 1.0" w.g. (250 Pa) ΔPs 1.5" w.g. (375 Pa) ΔPs 2.0" w.g. (500 Pa) ΔPs

2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7500 236 0.49 122 54 49 44 39 36 33 60 52 49 39 37 35 66 58 53 43 40 39 69 62 57 45 42 42 70 64 59 48 45 44400 189 0.32 80 48 41 37 33 30 26 58 49 45 36 34 31 64 55 51 39 38 36 68 60 55 43 41 40 68 62 58 46 43 43

6 300 142 0.18 45 44 35 31 28 23 - 55 45 41 32 30 26 61 52 49 36 35 33 64 58 54 41 39 38 64 60 56 43 41 41200 94 0.08 20 - - - - - - 52 44 40 30 30 25 57 50 47 34 34 31 56 53 52 38 37 35 54 55 55 41 39 39100 47 0.02 5 - - - - - - 46 39 36 38 26 - 47 45 46 33 32 29 46 47 50 37 35 33 46 48 51 39 37 35875 413 0.3 75 50 46 41 36 32 29 55 50 45 40 35 32 65 57 52 42 39 38 67 61 56 45 43 42 67 64 59 45 44 44700 330 0.2 50 49 43 37 32 29 24 54 49 43 36 33 29 62 57 51 39 38 36 65 61 57 42 41 41 66 63 59 44 43 43

8 525 248 0.11 27 - 36 31 27 - - 53 48 41 33 32 29 58 54 49 36 37 35 61 58 55 39 39 39 61 61 57 42 41 41350 165 0.05 12 - 35 28 24 - - 51 45 39 30 30 26 53 51 46 33 35 33 55 55 52 37 38 37 53 58 56 40 40 40175 83 0.01 2 - - - - - - 45 41 36 28 27 22 46 50 48 33 33 31 45 49 52 36 36 33 45 48 53 39 38 361375 649 0.4 100 56 51 47 39 37 36 57 53 50 41 39 38 64 58 54 43 42 43 67 63 58 46 44 47 69 66 61 48 46 492

1100 520 0.24 60 51 46 42 34 32 30 54 50 46 36 35 33 61 56 52 40 40 40 64 62 56 43 43 45 66 64 61 46 45 4810 825 389 0.15 37 46 39 34 28 26 21 53 47 43 33 33 32 59 55 51 37 38 39 59 59 55 41 41 44 61 61 59 44 44 48

550 260 0.06 15 - 34 26 - - - 51 45 39 30 31 29 53 53 49 35 37 37 54 53 52 39 40 42 56 56 55 42 42 46275 130 0.02 5 - - - - - - 45 42 38 28 29 25 47 48 46 34 35 35 47 49 50 37 38 39 47 50 52 41 41 422000 944 0.45 112 62 59 57 49 42 38 62 59 57 49 42 38 68 63 60 49 43 408 69 64 60 49 45 44 69 66 61 50 47 471600 755 0.3 75 59 55 52 43 35 30 60 57 54 43 36 31 64 58 53 43 41 38 65 61 56 46 44 43 66 63 59 49 47 46

12 1200 566 0.18 45 52 48 45 35 27 - 55 49 44 34 32 26 59 54 50 40 39 35 60 58 54 43 43 42 62 60 57 45 44 45800 378 0.08 20 44 38 33 22 - - 50 44 38 32 32 26 52 49 46 36 38 35 54 50 48 38 40 41 56 53 51 42 42 46400 189 0.02 5 42 34 26 - - - 41 37 34 28 30 21 46 44 44 34 37 34 47 46 47 37 39 41 48 48 50 40 41 48

875 - 413 0.24 60 49 49 46 42 40 38 55 51 47 43 40 38 63 60 55 47 45 45 65 62 57 48 46 47 67 65 60 50 48 50700 330 0.15 37 48 43 41 37 34 31 53 49 46 41 38 36 62 58 52 45 43 42 65 62 57 48 46 47 65 63 59 49 47 49

8 525 248 0.08 20 - 35 32 27 - - 50 46 41 35 33 30 56 53 48 39 39 38 57 56 52 42 41 42 58 59 55 45 43 46350 165 0.04 10 - 34 23 - - - 47 42 36 31 29 27 52 50 45 37 36 36 52 53 49 40 39 40 53 56 53 44 42 44175 83 0.01 2 - - - - - - 45 40 36 29 28 25 46 46 45 35 33 33 46 47 46 36 36 36 47 49 49 41 39 411375 649 0.25 62 55 47 44 38 35 31 55 50 48 41 38 36 64 57 53 44 42 42 66 61 56 47 44 45 68 64 59 48 46 481100 519 0.16 40 49 48 48 42 41 38 55 49 46 39 36 34 61 56 51 42 40 40 64 61 55 45 43 45 64 63 58 47 45 47

10 825 389 0.09 22 45 37 34 29 25 - 53 48 42 35 34 31 58 54 49 39 39 38 60 59 54 42 42 43 59 60 56 45 44 46550 260 0.04 10 - 34 25 - - - 49 44 36 31 31 29 54 53 47 37 37 37 56 56 52 41 41 42 57 58 55 44 43 45

3 275 130 0.01 2 - - - - - - 45 41 37 29 30 28 46 44 42 34 35 34 46 46 45 37 38 38 47 50 48 41 41 432000 944 0.34 85 53 49 45 40 38 34 54 53 49 43 40 38 60 58 54 45 44 44 64 62 57 48 48 48 65 65 60 50 50 511600 755 0.22 55 48 44 41 35 32 27 51 49 44 38 36 32 59 56 51 43 44 42 62 62 56 47 47 48 63 64 59 48 48 49

12 1200 566 0.12 30 42 37 33 27 21 - 52 48 43 37 37 33 56 56 49 41 42 41 58 59 54 44 45 45 59 61 58 47 47 48800 378 0.05 12 - - 23 - - - 48 44 37 33 33 28 51 50 47 38 40 38 53 53 50 41 43 43 52 54 52 44 45 46400 189 0.01 2 - - - - - - 43 40 35 30 31 27 45 45 43 36 38 37 47 47 46 40 41 42 50 50 49 43 44 452625 1239 0.39 97 55 51 48 42 38 34 55 52 49 44 39 36 63 59 55 46 44 44 64 62 57 48 47 48 66 66 61 51 49 512100 991 0.25 62 51 46 43 36 32 27 54 50 46 38 37 33 60 58 52 43 43 43 62 61 56 46 46 47 64 62 59 48 48 50

14 1575 743 0.14 35 46 40 35 28 22 - 52 46 42 35 35 31 56 53 48 40 41 40 60 58 54 44 45 46 61 59 57 47 48 471050 496 0.06 15 - - 22 - - - 49 43 39 33 34 30 52 51 47 39 40 40 55 54 52 43 44 45 57 55 54 45 46 48525 248 0.02 5 - - - - - - - 40 38 32 34 34 47 46 44 37 39 40 50 50 49 41 43 44 49 51 50 43 45 451375 649 0.26 65 49 43 42 39 38 34 55 52 48 42 41 40 62 57 51 44 43 43 65 62 55 46 45 48 63 64 58 48 47 491100 519 0.17 42 45 40 39 36 34 29 59 54 50 43 39 37 60 57 50 42 42 42 61 61 54 44 44 47 63 63 57 46 46 49

10 825 389 0.11 27 45 36 33 30 26 - 51 47 39 33 33 31 52 50 44 36 37 37 58 57 51 41 42 44 57 59 54 44 43 46550 260 0.04 10 - 33 28 21 - - 54 52 48 43 45 43 59 61 57 49 52 53 56 56 50 40 41 43 55 56 52 42 42 45275 130 0.01 2 - - - - - - - 40 35 28 29 28 - 43 42 33 35 35 - 44 45 37 38 39 45 47 47 40 41 422000 944 0.24 60 53 49 46 40 37 34 56 53 49 43 40 38 61 59 54 46 44 44 63 62 57 48 46 47 65 65 59 49 48 491600 755 0.15 37 48 43 40 34 31 27 52 48 44 37 36 33 60 58 51 43 43 42 62 62 56 46 46 47 63 62 58 48 47 49

5 12 1200 566 0.08 20 44 37 33 28 22 - 53 48 43 36 35 32 57 55 48 40 41 39 58 58 53 43 44 44 60 59 57 46 46 47800 378 0.03 7 - - 27 - - - 48 44 37 32 32 28 53 54 49 39 40 39 55 53 50 41 42 42 55 55 53 44 44 46400 189 0.01 2 - - 21 - - - 44 42 35 30 31 28 52 47 43 35 37 35 51 48 47 39 40 39 50 50 49 42 43 43

2625 1239 0.3 75 55 49 46 40 38 36 57 52 48 42 39 38 62 58 52 45 44 44 63 61 55 47 46 47 65 63 58 49 48 502100 991 0.19 47 54 51 50 45 43 41 55 49 45 38 37 35 59 56 50 42 41 41 61 58 53 45 45 46 63 59 56 47 46 48

14 1575 743 0.1 25 45 39 33 27 23 - 52 47 41 34 35 33 56 53 48 40 41 42 58 55 51 43 43 45 60 57 53 46 46 481050 495 0.04 10 - 38 24 - - - 49 44 38 32 33 31 51 48 44 37 39 39 54 52 48 41 43 44 56 54 51 44 45 47525 248 0.01 2 - - - - - - - 40 34 29 31 29 47 46 42 36 38 39 48 48 45 39 41 43 51 50 49 42 45 47

2000 944 0.21 52 54 47 44 39 38 34 58 51 46 41 40 37 62 59 51 44 44 43 64 62 55 47 46 46 65 64 56 48 47 491600 755 0.13 32 50 42 39 34 32 28 56 49 43 37 37 34 62 58 51 43 43 41 62 60 53 44 45 45 63 60 55 46 47 48

12 1200 566 0.07 17 49 38 34 29 26 - 57 50 46 38 34 31 57 53 46 39 41 39 59 55 50 42 43 43 62 57 54 45 46 47800 378 0.04 10 44 36 29 - - - 49 44 36 32 33 30 53 48 44 37 39 38 55 49 47 40 42 41 57 52 50 43 44 45400 189 0.01 2 - - 28 - - - 44 39 34 29 30 28 48 43 41 35 36 35 49 45 44 38 40 39 48 46 46 41 43 43

2625 1239 0.22 55 54 49 48 43 40 39 56 51 48 43 41 39 61 58 53 46 45 46 62 60 55 48 47 48 67 64 60 63 50 512100 991 0.14 35 51 44 43 36 32 30 54 48 44 39 37 35 60 56 52 44 43 44 61 58 54 46 46 48 63 58 55 47 48 50

6 14 1575 743 0.07 17 45 39 35 28 25 - 52 46 41 35 35 34 55 52 46 39 41 41 56 54 49 42 44 46 59 55 52 45 46 481050 495 0.03 7 - 33 29 24 - - 48 42 37 32 33 31 52 48 45 39 41 42 54 49 47 41 43 45 54 51 49 44 45 47525 248 0.01 2 - - 29 - - - 44 38 36 31 33 32 45 42 40 35 37 38 49 45 44 39 41 42 50 48 47 43 44 46

3425 1616 0.25 62 62 53 49 44 41 38 63 54 50 45 42 39 66 59 54 48 47 46 66 61 56 49 49 49 67 64 58 51 48 522750 1298 0.16 40 56 49 45 38 34 31 60 52 47 41 40 36 62 55 50 43 44 43 63 59 54 47 47 48 64 60 56 48 48 50

16 2050 967 0.08 20 51 41 37 30 26 - 55 47 42 36 37 33 58 53 49 41 43 42 60 55 52 44 46 46 62 57 53 46 48 501375 649 0.04 10 44 35 29 - - - 56 50 48 41 37 32 53 49 46 39 42 41 56 51 48 42 44 45 57 53 50 45 47 48700 330 0.01 2 45 34 28 - - - 47 39 35 31 33 29 48 44 41 37 40 40 50 48 45 41 43 46 52 49 47 43 45 49

For performance table notes, see page B108.


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UnitSize

InletSize

Airflowcfm l/s

DischargeΔPs

"w.g. Pa

NC Levels

Discharge Radiated

2 ALL

750 354600 283500 236400 189300 142

0.25 620.25 620.25 620.25 620.25 62

-----

3430272320

3 ALL

1000 472850 401700 330550 260

0.25 620.25 620.25 620.25 62

----

37363330

5 ALL

1850 8731600 7551400 6611200 5661000 472800 378

0.25 620.25 620.25 620.25 620.25 620.25 62

-----

424038353229

6 ALL

2100 9911900 8971700 8021500 7081200 566

0.25 620.25 620.25 620.25 620.25 62

282524--

4240383735

For performance table notes, see page D110; highlighted numbers indicate embedded AHRI certification points.

UnitSize

InletSize

Airflowcfm l/s

DischargeΔPs

"w.g. Pa

Discharge Radiated

Sound Power Octave Bands Sound Power Octave Bands2 3 4 5 6 7 2 3 4 5 6 7

2 ALL

750 354600 283500 236400 189300 142

0.25 620.25 620.25 620.25 620.25 62

67 61 61 57 54 5365 58 58 58 53 4861 49 52 46 43 4059 46 48 42 38 3354 41 41 35 31 26

73 67 65 61 56 5669 63 61 57 51 5066 61 58 54 47 4563 58 55 49 42 3961 54 52 46 38 35

3 ALL

1000 472850 401700 330550 260

0.25 620.25 620.25 620.25 62

68 63 63 60 55 5366 60 61 57 53 5061 55 56 51 46 4260 53 54 49 44 39

65 62 62 60 57 5464 61 61 58 54 5261 58 58 54 50 4658 55 55 50 45 40

5 ALL

1850 8731600 7551400 6611200 5661000 472800 378

0.25 620.25 620.25 620.25 620.25 620.25 62

68 65 65 65 62 6266 63 63 63 60 5964 60 61 60 56 5561 58 58 56 53 5158 53 54 52 48 4558 53 54 52 48 45

74 68 66 63 60 5972 66 65 60 57 5670 64 63 58 54 5367 61 60 56 51 4964 57 57 52 47 4461 55 54 48 43 39

6 ALL

2100 9911900 8971700 8021500 7081200 566

0.25 620.25 620.25 620.25 620.25 62

71 70 68 68 64 6469 68 66 66 62 6167 67 65 64 60 6064 63 62 61 57 5562 59 60 57 54 51

73 67 66 64 62 6072 66 65 63 60 5970 64 63 61 58 5767 62 62 58 55 5366 58 60 56 52 49

D107


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Performance Data • AHRI Certification and Performance NotesModel Series 35N • Parallel Flow • AHRI Certification Rating PointsVAV: Fiberglass

Performance Notes for Sound Power Levels:1. Discharge sound power is the noise emitted from the

unit discharge into the downstream duct. DischargeSound Power Levels (SWL) now include duct endreflection energy as part of the standard rating.Including the duct end correction provides soundpower levels that would normally be transmitted intoan acoustically, non-reflective duct. The effect ofincluding the energy correction to the discharge SWL,is higher sound power levels when compared toprevious AHRI certified data. For more information onduct end reflection calculations see AHRI 880-2011.

2. Radiated sound power is the breakout noisetransmitted through the unit casing walls.

3. Sound power levels are in decibels, dB re 10-12 watts.4. All sound data listed by octave bands is raw data

without any corrections for room absorption or ductattenuation. Dash (-) in space indicates sound powerlevel is less than 20 dB or equal to background.

5. Minimum inlet ΔPs is the minimum operating pressurerequirement of the unit (damper full open) to achieverated primary CFM. Asterisk (*) in space indicates thatthe minimum inlet static pressure requirement isgreater than 0.5" w.g. (125 Pa) at rated airflow.

6. Data derived from independent tests conducted inaccordance with ANSI/ASHRAE Standard 130 andAHRI Standard 880.

7. 100% primary air sound power levels are coolingcycle (fan turned off).

8. Fan airflow is rated fan volume at .25" w.g. (62 Pa)downstream static pressure.

9. Fan only sound power levels are 100% recirculatedair; fan only; in heating cycle.

10. Fan Watts are the maximum electrical power inputat rated fan volume.

Ratings are certified inaccordance with AHRIStandards.

† PSC Motor.*Primary air valve is closed and therefore primary cfm is zero.

UnitSize

InletSize

PrimaryAirflow

Min. Inlet 100% Primary @ 1.5" w.g. (375 Pa) ΔPsw/ .25" w.g. (62 Pa) Discharge ΔPs Fan Airflow Fan†

Watts

Fan Only* @ 25" w.g. (62 Pa)ΔPs

ΔPs Discharge Radiated Discharge Radiatedcfm l/s " w.g. Pa 2 3 4 5 6 7 2 3 4 5 6 7 cfm l/s 2 3 4 5 6 7 2 3 4 5 6 7

2 8 700 330 0.20 50 74 72 65 56 56 59 65 61 57 42 41 41 600 283 254 65 58 58 58 53 48 69 63 61 57 51 503 10 1100 519 0.16 40 69 70 63 55 57 59 64 61 55 45 43 45 1000 472 385 68 63 63 60 55 53 65 62 62 60 57 545 12 1600 755 0.15 37 70 72 66 57 59 63 62 62 56 46 46 47 1850 873 995 68 65 65 65 62 62 74 68 66 63 60 596 14 2100 991 0.14 35 68 67 63 56 58 60 61 58 54 46 46 48 2100 991 814 71 70 68 68 64 64 73 67 66 64 62 60


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0.0 0.1 0.2 0.3 0.4 0.5 “w.g.

0 25 50 75 100 125 Pa

CFM

900

800

700

600

500

400

300

200

100

0

NO HEAT,ELECTRIC HEAT OR1 ROW H.W. COIL

2 ROW H. W. COIL

MAXIMUM

MINIMUM

l/s

425

378

330

283

236

189

142

94

47

0

0.0 0.1 0.2 0.3 0.4 0.5 “w.g.

0 25 50 75 100 125 Pa

1400

1300

1200

1100

1000

900

800

700

600

500

400

300

200

NO HEAT,ELECTRIC HEAT OR1 ROW H.W. COIL

2 ROW H. W. COIL

MAXIMUM

MINIMUM

661

614

566

519

472

425

378

330

283

236

189

142

94

l/s CFM

0.0 0.1 0.2 0.3 0.4 0.5 “w.g.

0 25 50 75 100 125 Pa

2100

2000

1900

1800

1700

1600

1500

1400

1300

1200

1100

1000

900

800

700

600

500

400

NO HEAT,OR 1 ROWH.W. COIL

ELECTRIC HEAT

MAXIMUM

MINIMUM

991

944

897

850

802

755

708

661

614

566

519

472

425

378

330

283

236

189

l/s CFM

2 ROW H. W. COIL

0.0 0.1 0.2 0.3 0.4 0.5 “w.g.

0 25 50 75 100 125 Pa

2400

2300

2200

2100

2000

1900

1800

1700

1600

1500

1400

1300

1200

1100

1000

900

800

NO HEAT,OR 1 & 2 ROW

H.W. COIL

ELECTRIC HEAT

MAXIMUM

MINIMUM

1133

1086

1038

991

944

897

850

802

755

708

661

614

566

519

472

425

378

l/s CFM

• Fan curves shown are applicable to 120,208, 240 and 277 volt, single phase PSCmotors.

2 1/10 2.8 1.4 1.23 1/4 4.7 2.0 1.75 1/2 9.9 4.1 3.56 3/4 8.4 3.8 3.7

FLA = Full load amperage


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• The fan curves for the ECM are unlikethose for traditional PSC motors. The ECMis pressure independent and constantvolume in operation at factory or field setpoint within the shaded area. Airflow doesnot vary with changing static pressureconditions. The motor compensates for anychanges in external static pressure orinduced air conditions such as filter loading.

• Airflow can be set to operate on horizontalperformance line at any point withinshaded area using the solid state volumecontroller provided.

• Fan curves shown are applicable to120/240, 208 and 277 volt, single phaseECM’s. ECM’s, although DC in operation,include a built-in inverter.

550

500

450

400

350

300

250

200

150

100

50

1100

1000

900

800

700

600

500

400

300

200

100

0

0.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125

MAXIMUM

MINIMUM

MAXIMUM

MINIMUM

1800

1700

1600

1500

1400

1300

1200

1100

1000

900

800

700

600

500

400

MAXIMUM

MINIMUM

519

472

425

378

330

283

236

189

142

94

47

0

849

802

755

708

661

614

566

519

472

425

378

330

283

236

189

260

236

212

189

165

142

118

94

71

47

24

0.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125

0.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125

2200

2000

1800

1600

1400

1200

1000

800

600

400

MAXIMUM

MINIMUM

1038

944

849

755

661

566

472

378

283

1890.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125

1 OR 2 ROW H.W. COIL 1 OR 2 ROW H.W. COIL

1 OR 2 ROW H.W. COIL1 OR 2 ROW H.W. COIL

2 1/3 3.9 2.2 1.83 1/3 6.9 3.9 3.55 3/4 11.9 6.8 6.16 3/4 13.7 7.9 6.7

* The ECM is a variable horsepower motor. Refer to Selectworks Schedule.



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200 300 400 500 600 700 94 142 189 236 283 330

40

36

32

28

24

20

16

12

8

11.7

10.5

9.4

8.2

7.0

5.9

4.7

3.5

2.3

kW MBH GPM l/s

107.5543

2

1.5

1

0.5

.63

.47

.32

.25

.19

.13

.09

.06

.03

1 ROW

2 ROW

3 ROW

1 ROW

2 ROW

3 ROW

22

20

18

16

14

12

10

8

6.4

5.9

5.3

4.7

4.1

3.5

2.9

2.3

kW MBH

200 300 400 500 600 700 94 142 189 236 283 330

GPM l/s

43

2

1.5

1

0.5

.25

.19

.13

.09

.06

.03

51

47

43

39

35

31

27

23

19

15

14.9

13.8

12.6

11.4

10.3

9.1

7.9

6.7

5.6

4.4

kW MBH

200 300 400 500 600 700 94 142 189 236 283 330

GPM l/s

1510

7.55

4

3

2

1.5

.95

.63

.47

.32

.25

.19

.13

.09

.06

8-3-11

Sensible HeatFactor

0 (0) 1.002000 (610) 0.943000 (914) 0.904000 (1219) 0.875000 (1524) 0.846000 (1829) 0.817000 (2134) 0.78

Δ

Factor .455 (.459) .545 (.541) .636 (.639) .727 (.721) .818 (.820) .909 (.918) 1.00 (1.00) 1.09 (1.10) 1.18 (1.18) 1.27 (1.28) 1.36 (1.36)

1. Capacities are in MBH (kW), thousands of Btuper hour (kilo Watts).

2. MBH (kW) values are based on a Δt (temperaturedifference) of 110°F (61°C) between entering airand entering water. For other Δt's; multiply theMBH (kW) values by the factors below.

3. Air Temperature Rise.

4. Water Temp. Drop.

5. Connections: 1 Row 1/2" (13), 2 and 3 Row 7/8"(22); O.D. male solder.

ATR (°C) = 829 x kWl/s

ATR (°F) = 927 x MBH ,cfm

WTD (°C) = .224 x kWl/s

WTD (°F) = 2.04 x MBH ,GPM

1 2 3 6 8 10.06 .13 .19 .38 .50 .63

10.08.0

6.0

4.0

2.0

1.00.8

0.6

0.4

0.2

0.1

kPa ft. H2O30.024.0

18.0

12.0

6.0

3.02.4

1.8

1.2

0.6

0.3

100 200 300 500 70047 94 189 283 330

1.000.80

0.60

0.40

0.20

0.100.08

0.06

0.04

0.02

0.01

Pa in.H2O249199

149

100

50

2520

15

10

5

2


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8-3-11

300 500 700 900 1100 1300142 236 330 425 519 613

32

29

26

23

20

17

14

11

9.4

8.5

7.6

6.7

5.9

5.0

4.1

3.2

kW MBH GPM l/s

4

3

2

1.5

1

0.5

.25

.19

.13

.09

.06

.03

300 500 700 900 1100 1300142 236 330 425 519 613

60

55

50

45

40

35

30

25

20

15

10

17.6

16.1

14.7

13.2

11.7

10.3

8.8

7.3

5.9

4.4

2.9

kW MBH GPM l/s

7.5

54

3

2

1.5

1

0.5

.47

.32

.25

.19

.13

.09

.06

.03

80

75

70

65

60

55

50

45

40

35

30

25

20

15

23.4

22.0

20.5

19.0

17.6

16.1

14.7

13.2

11.7

10.3

8.8

7.3

5.9

4.4

kW MBH GPM l/s

107.5

54

3

2

1.5

1

0.5

.63

.47

.32

.25

.19

.13

.09

.06

.03

300 500 700 900 1100 1300142 236 330 425 519 613

1 ROW

2 ROW

3 ROW

1 ROW

2 ROW

3 ROW

Sensible HeatFactor

0 (0) 1.002000 (610) 0.943000 (914) 0.904000 (1219) 0.875000 (1524) 0.846000 (1829) 0.817000 (2134) 0.78

Δ

Factor .455 (.459) .545 (.541) .636 (.639) .727 (.721) .818 (.820) .909 (.918) 1.00 (1.00) 1.09 (1.10) 1.18 (1.18) 1.27 (1.28) 1.36 (1.36)








WTD (°C) = .224 x kWl/s


1 2 3 4 6 8 10.06 .13 .19 .25 .38 .50 .63

10.08.0

6.0

4.0

2.0

1.00.8

0.6

0.4

0.2

0.1

kPa ft. H2O29.823.9

17.9

11.9

6.0

3.02.4

1.8

1.2

0.6

0.3

100 200 400 600 1000 200047 94 189 283 472 944

1.000.80

0.60

0.40

0.20

0.100.08

0.06

0.04

0.02

0.01

Pa in.H2O249447

149

100

50

2520

15

10

5

2


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600 800 1000 1200 1400 1600 1800283 378 472 566 661 755 849

47

43

39

35

31

27

23

19

5

13.8

12.6

11.4

10.3

9.1

7.9

6.7

5.6

1.5

kW MBH GPM l/s

7.5

54

3

2

1.5

1

0.5

.47

.32

.25

.19

.13

.09

.06

.03

82

77

72

67

62

57

52

47

42

37

32

27

22

17

24.0

22.6

21.1

19.6

18.2

16.7

15.2

13.8

12.3

10.8

9.4

7.9

6.4

5.0

kW MBH GPM l/s

10

7.5

5

4

3

2

1.5

1

0.5

.63

.47

.32

.25

.19

.13

.09

.06

.03

600 800 1000 1200 1400 1600 1800 283 378 472 566 661 755 849

600 800 1000 1200 1400 1600 1800283 378 472 566 661 755 849

112

102

92

82

72

62

52

42

32

22

32.8

29.9

27.0

24.0

21.1

18.2

15.2

12.3

9.4

6.4

kW MBH GPM l/s

10

7.5

5

4

3

2

1.5

1

0.5

.63

.47

.32

.25

.19

.13

.09

.06

.03

1 2 3 4 6 8 10.06 .13 .19 .25 .38 .50.63

100 200 400 600 1000 200047 94 189 283 472 944

1 ROW

2 ROW

3 ROW

1 ROW

2 ROW

3 ROW

Sensible HeatFactor

0 (0) 1.002000 (610) 0.943000 (914) 0.904000 (1219) 0.875000 (1524) 0.846000 (1829) 0.817000 (2134) 0.78

Δ

Factor .455 (.459) .545 (.541) .636 (.639) .727 (.721) .818 (.820) .909 (.918) 1.00 (1.00) 1.09 (1.10) 1.18 (1.18) 1.27 (1.28) 1.36 (1.36)








WTD (°C) = .224 x kWl/s


10.08.0

6.0

4.0

2.0

1.00.8

0.6

0.4

0.2

0.1

kPa ft. H2O29.823.9

17.9

11.9

6.0

3.02.4

1.8

1.2

0.6

0.3

1.000.80

0.60

0.40

0.20

0.100.08

0.06

0.04

0.02

0.01

Pa in.H2O249447

149

100

50

2520

15

10

5

2


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8-3-11

1000 1200 1400 1600 1800 2000 2200 2119 2543 2967 3391 3841 4238 4662

62

56

50

44

38

32

26

20

18.2

16.4

14.7

12.9

11.1

9.4

7.6

5.9

kW MBH GPM l/s

10

7.5

54

3

2

1.5

1

.63

.47

.32

.25

.19

.13

.09

.06

1000 1200 1400 1600 1800 2000 2200 2119 2543 2967 3391 3841 4238 4662

110

100

90

80

70

60

50

40

30

32.2

29.3

26.4

23.4

20.5

17.6

14.7

11.7

8.8

kW MBH GPM l/s

10

7.5

5

4

3

2

1.5

1

.63

.47

.32

.25

.19

.13

.09

.06

1000 1200 1400 1600 1800 2000 2200 2119 2543 2967 3391 3841 4238 4662

140

130

120

110

100

90

80

70

60

50

40

30

41.0

38.1

25.2

32.2

29.3

26.4

23.4

20.5

17.6

14.7

11.7

8.8

kW MBH GPM l/s

10

7.5

5

4

3

2

1.5

1

.63

.47

.32

.25

.19

.13

.09

.06

1 ROW

2 ROW

3 ROW

1 ROW

2 ROW

3 ROW

Sensible HeatFactor

0 (0) 1.002000 (610) 0.943000 (914) 0.904000 (1219) 0.875000 (1524) 0.846000 (1829) 0.817000 (2134) 0.78

Δ

Factor .455 (.459) .545 (.541) .636 (.639) .727 (.721) .818 (.820) .909 (.918) 1.00 (1.00) 1.09 (1.10) 1.18 (1.18) 1.27 (1.28) 1.36 (1.36)








WTD (°C) = .224 x kWl/s


1 2 3 4 6 8 10.06 .13 .19 .25 .38 .50 .63

10.08.0

6.0

4.0

2.0

1.00.8

0.6

0.4

0.2

0.1

kPa ft. H2O29.823.9

17.9

11.9

6.0

3.02.4

1.8

1.2

0.6

0.3

100 200 400 600 1000 200047 94 189 283 472 944

1.000.80

0.60

0.40

0.20

0.100.08

0.06

0.04

0.02

0.01

Pa in.H2O249447

149

100

50

2520

15

10

5

2


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8-1-11

1. Furnish and install variable volume parallel fan poweredterminal units of the sizes and capacities as indicated on thedrawings. Units shall be pressure independent with (pneumatic,analog electronic, digital) controls. Units shall be manufactured by

Model .2. The entire terminal unit shall be designed and built as asingle unit. The units shall be provided with a primary variable airvolume damper that controls the air quantity in response to a(thermostat or digital controller/zone sensor). The units shall alsoinclude a fan that sequences on and off in response to the (thermostator digital controller/zone sensor). The space limitations shall bereviewed carefully to ensure that all units will fit into the space allowed.3. Unit casings shall be 20 ga. (1.00) galvanized steel. Unitshall be fully lined with fiberglass insulation which shall be at least3/4" (19) thick dual density insulation complying with NFPA 90 for fireand smoke resistivity and UL 181 for erosion. Any cut edges ofinsulation shall be coated with NFPA 90 approved sealant. 4. The terminal casing shall have full size bottom accesspanels for easy access to motor and blower assembly and formaintenance and replacement of parts without disturbing ductconnections. Access panels shall be attached to casing with (screws,1/4 turn fasteners). 5. Units shall have round inlets for the primary airconnections and shall have a minimum 6" (152) deep inlet duct collarfor field connection. Models with no heat or electric heat shall haverectangular outlets suitable for flanged duct connections. Modelswith hot water coils shall have a discharge opening with slip anddrive connection. Casing shall have mounting area for hanging bysheet metal straps from a concrete slab.6. The damper shall be round and of laminated 2 x 20 ga.(1.00) galvanized steel construction with a peripheral gasket and asolid steel 1/2" (13) diameter shaft, pivoted in self-lubricating bronzeoilite bearings. Damper leakage shall not exceed 2% of the terminalrated airflow at 3" w.g. (750 Pa) inlet static pressure.7. Entire terminal unit shall be factory assembled with(pneumatic, analog electronic, digital) controls. All componentsincluding all controls except the room (thermostat or zone sensor)and (pneumatic piping, field wiring) shall be factory installed andmounted with the unit.8. Provide a (pneumatic, analog electronic, digital) flowcontrol device that will limit the maximum and minimum airflow to thatscheduled on the drawings. Control of the terminal unit shall bepressure independent.9. (The sequence of operation should be described here, ifnot part of the temperature controls specifications).10. Blower casings shall be constructed of heavy gaugecoated steel. Blower wheel shall be forward curved centrifugal type,dynamically balanced and driven by direct drive, single speed splitcapacitor motors. Motors shall be suitable for 120 or 208 or 240 or277 volt single phase power. Motors shall have built-in overloadprotection, bearings capable of low rpm oiling, permanently oiledbearings and a built-in, anti-backward rotation device. Fan assemblyshall be mounted so as to isolate the casing from the motor andblower vibration at no less than four points. Isolation shall besupplied at the motor and at the blower mounting points. A gasketedbackdraft damper shall be included on the fan discharge to precludeprimary air leakage back into the plenum space.

11. A solid state SCR fan speed controller sized and designedfor the specific blower motor combination shall be provided to allowinfinitely adjustable fan speed from the minimum voltage stop to theline voltage signal to the motor. A minimum voltage stop shall beemployed to ensure that fan cannot run in stall mode.12. Units shall incorporate a single point electrical (andpneumatic) connection for the entire unit. All electrical componentsshall be ETL listed or recognized and installed in accordance with theNational Electrical Code. All electrical components shall be mountedin a control box. The entire assembly shall be ETL listed and labeledto meet UL 1995 and CSA C22.2 No. 236.13. All sound data shall be compiled in an independentlaboratory and in accordance with the latest version of AHRI 880. Allunits shall be AHRI certified and bear the AHRI certification label.14. Unit maximum radiated and discharge sound power levelswith fan only and 0.25" w.g. (63 Pa) discharge static pressure shallnot exceed the values in Tables 1 and 2 at the specified airflow. Nocredit or reduction shall in any way be considered for room, plenum,ceiling, downstream duct, elbows and/or similar item effects.

Maximum Radiated Sound Power Levels.Heating Cycle (Fan only).

Maximum Discharge Sound Power Levels.Heating Cycle (Fan only).

15. Unit maximum radiated and discharge sound power levelswith 100% primary air and fan off at 1.0" w.g. (249 Pa) inlet pressureand 0.25" w.g. (63 Pa) discharge static pressure shall not exceed thevalues in Table 3 and 4 at the specified airflow. No credit or reductionshall in any way be considered for room, plenum, ceiling,downstream duct, elbows and/or similar item effects.

Maximum Radiated Sound Power Levels.Cooling Cycle (100% primary air and fan off).

Maximum Discharge Sound Power Levels.Cooling Cycle (100% primary air and fan off).

Sound Power Octave Band Center Frequency (Hz.)

2 400 189 50 49 49 42 34 303 700 330 61 58 58 54 50 465 1000 472 64 57 57 52 47 446 1500 708 67 62 62 38 55 53


2 400 189 54 44 47 42 38 333 700 330 56 53 56 51 46 425 1000 472 54 52 54 52 48 456 1500 708 61 62 62 61 57 55


2 – 08 700 330 62 57 51 39 38 363 – 10 1100 519 61 56 51 42 40 405 – 12 1600 755 60 58 51 43 43 426 – 14 2100 991 60 56 52 44 43 44


2 – 08 700 330 65 64 58 54 52 543 – 10 1100 519 62 65 59 52 54 555 – 12 1600 755 64 67 62 54 56 586 – 14 2100 991 63 63 60 54 55 58


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8-1-11

1. Furnish and install variable volume parallel fan poweredterminal units with integral electric heat of the sizes and capacities asindicated on the drawings. Units shall be pressure independent with(pneumatic, analog electronic, digital) controls. Units shall bemanufactured by Model .2. An electric heater shall be factory mounted and pre-wired asan integral package with the fan powered terminal unit. Heaters shallbe sized as shown on the drawings. The entire assembly including theelectric heater shall be ETL listed for zero clearance and so labeledand shall meet all requirements of the latest National Electrical Code,CSA C22.2 No.236). The unit shall have a single point electrical (andpneumatic) connection. Heater casing and panel shall be a minimumof 20 ga. (1.00) galvanized steel. Each heater shall be complete withautomatic reset high limit thermal cut-outs, control voltage transformeras required, ground terminal, fan relay for interlocking the heater andfan and high grade nickel chrome alloy resistance wire.Element wires shall be suspended in insulators designed to expose theentire face area of the wire thereby eliminating hot spots. Each heatershall be supplied with factory supplied and pre-wired branch circuitfusing as required by NEC and UL. Circuiting and fusing shall also be inaccordance with the circuiting requirements as shown on the plans.Additional accessories shall include (control transformer, circuitfusing, disconnect switch, SCR controller, pneumatic electricswitches) for staging the heater. (Additional performancerequirements that you might want to include can be found in theelectric heater section). The electric heater shall be located on thedischarge side of the fan so as not to add heat to the motor andshorten its expected lifetime.Coils rated up through 5 kW shall be single phase, 277 volt, 60 Hzand coils larger than 5 kW shall be three phase, four wire wye, 480volt, 60 Hz. Electric heating coils up to and including 4 kW shall besingle stage. Electric coils above 4 kW shall be two stage.

1. Furnish and install Variable Volume Parallel Fan PoweredTerminal Units with integral hot water coils of the sizes and capacitiesas indicated on the drawings. Units shall be pressure independentwith (pneumatic, analog electronic, digital) controls. Units shall bemanufactured by Model .2. A hot water coil shall be factory mounted as an integralpackage with the fan powered terminal unit. Hot water coils shall besized as shown on the drawings. The entire assembly including thehot water coil shall be ETL listed for zero clearance and so labeledand shall meet all requirements of the latest National Electrical Code(CSA C22.2 No.236). The unit shall have a single point electrical(and pneumatic) connection. Access panels on the bottom of the unitshall permit easy access to the coil for inspection and cleaning. Coilsshall be 1, 2 or 3 row as required and heating capacities shall be asshown on the plans. Coils shall have aluminum plate fins spaced 10per inch and bonded to 1/2" (13) O.D. copper tubes. Copperconnections shall be sweat. All coils shall be tested at a minimum of300 psi (2.1 MPa) under water to produce a guaranteed workingpressure of 250 psi (1.7 MPa). Controls and valves for the hot watercoils shall be field mounted. Heating coils shall be located on thedischarge side of the fan so as not to add heat to the motor andshorten its expected lifetime.

(Substitute in the appropriate specification section)

Unit shall be fully lined with non-porous, sealed liner which complieswith NFPA 90A and UL 181. Installation shall be 13/16" (21) minimumthickness, 4 lb. 1 cu. ft. (64 kg/m3) density with reinforced aluminumfoil-scrim-kraft (FSK) facing. All cut edges shall be secured with steelangles or end caps to encapsulate edges and prevent erosion.Insulation shall be Nailor Steri-Liner or equal.

Unit shall be fully lined with a non-porous closed cell elastomericfoam liner which complies with NFPA 90A, ASTM E84 and UL 181.Installation shall be 3/4" (19) minimum thickness and secured to theinterior of the terminal with mechanical fasteners. No fiberglass ispermitted. Insulation shall be Nailor Fiber-Free Liner or equal.


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10-31-11

• Only 11" (279) to 12 1/2" (318) high

• 20 ga. (1.00) galvanized steelconstruction.

• 2 x 20 ga. (1.00) round orrectangular primary air damper with apolyurethane peripheral gasket. 90°rotation, CW to close. 1/2" (13) dia.plated steel drive shaft. An indicatormark on the end of the shaft showsdamper-position. Damper leakage isless than 2% of nominal flow at 3" w.g.(750 Pa).

• Round or rectangular 6" (152) deepinlet collars for field duct connection.

• Multi-point averaging 'DiamondFlow' sensor (pressure independentcontrol only).

• Access panels on underside ofterminal for ease of maintenance andservice.

• Energy efficient PSC fan motor withthermal overload protection.

• Solid state fan speed controller withminimum voltage stop.

• Motor blower assembly mounted onspecial 16 ga. (1.6) angles andisolated from casing with rubber isolators.

• Gasketed backdraft dampermounted on fan discharge preventsprimary air from escaping through thefan section into the ceiling plenum.

• Hinged door on fan controlsenclosure.

• 1/2" (13) dual density insulation.Exposed edges coated to prevent airerosion. Meets requirements of NFPA90A and UL 181.

• Available with electric or hot watersupplementary heat.

• Hot water coils are mounted oninduced air inlet of 37NW unit and aredesigned to accept flanged ductconnection.

• Electric coils are mounted on unitdischarge.

• Single point electrical and/orpneumatic main air connection.

• Discharge opening designed forflanged duct connection.

• Full primary air valve low voltageenclosure for factory mounted digitaland analog electronic controls.

• Pneumatic and analog electroniccontrols. Factory supplied, mountedand calibrated.

• Digital controls. Factory mountingand wiring of DDC controls. Controlssupplied by BAS controls contractor.

• ECM motor option. EPIC fanvolume controller.

• Induced air filter, 1" (25) thick,disposable type.

• Primary air valve enclosure for fieldmounted controls.

• Toggle disconnect switch. Units withelectric heat also offer doorInterlocking type.

• Various 'IAQ' linings are available.

• Fan airflow switch for night shutdown.

• Night setback fan/heat cycle(pneumatic and analog).

• Fan unit fusing.

• Hanger brackets.

• Induced air attenuator.

The provides many standard design features and excellent sound performance when compared withother parallel designs. The offers a compact and economical design that provides excellent performance in the mostdemanding variable air volume/intermittent fan applications. The fan is mounted at ninety degrees to the primary airflow toprovide optimum mixing.

Model 37NW


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10" (254)

3/4" (19)

B

H

H

A

14" (356)

W

PRIMARY

INDUCED

AIR

AIR

MULTI-POINT FLOW SENSOR

DIA. = NOM. -1/8" (3)

PRIMARYCONTROLS ENCLOSURE

FANCONTROLS ENCLOSURE

FAN

5 1/2" (140)

6"(152)

IH

IW

DH J

L

DW

OPTIONALINDUCED AIRINLET FILTER

PRIMARY

AIR

DAMPER DRIVESHAFT

BUTTERFLYDAMPER

CLBACKDRAFT DAMPER

26 (152), 8 (203)

10 (254)32

(813)36

(914)11

(279)7 7⁄8 (200)

6 1⁄2 (165)12 x 10

(305x 254)10 x 8

(254x 203)1 1⁄2(38)

1 1⁄2(38)

14 x 11(356x 279)

38 (203), 10 (254)

14 x 8 (356x 203)38

(965)36

(914)11

(279)12 (305)

8 1⁄8 (206)16 x 10

(406x 254)16 x 8

(406x 203)1 1⁄2(38)

1 1⁄2(38)

18 x 11(457x 279)

414 x 8 (356x 203)

14 x 10 (356x 254)43

(1092)36

(914)12 1⁄2(318)

13(330)

19 x 10(483 x 254)

19 x 11(483x 279)

1(25)

3⁄4(19)

22 x 11(559 x 279)

Right hand unit, topview illustrated.Controls mounted asstandard on RH sideas shown. Left handterminals orderedwith LH controls(optional), are builtas mirror image.Inlet, discharge andcontrol enclosure areopposite of thedrawing.

10-28-11

• 22 ga. (0.86) galvanized steel construction.• Shipped loose for field attachment.

• Flanged connection.• 1/2" (13) thick dual density fiberglass liner.

Meets requirements of NFPA 90A & UL 181.

IW + 2" (51) CL

ACAL

CL

H

S

R

OPTIONAL INDUCEDAIR INLET FILTER

OPTIONALINDUCEDAIR INLET

FILTER

INDUCED

AIR

1" (25) FLANGE

1" (25)FLANGE

2 11(279)

12(305)

13(330)

11(279)

36(914)

36(914)

3 11(279)

16(406)

17(432)

11(279)

36(914)

36(914)

4 12 1⁄2(318)

19(483)

22(559)

11(279)

36(914)

36(914)


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B

W

INDUCED

AIRFAN

5 1/2" (140)

GD

H

DH

L

DW

WATERCOIL

EC

FCOIL

CONNECTION

A

PRIMARY

AIR

MULTI-POINT FLOW SENSOR

DIA. = NOM.

-1/8" (3)

6"(152)

DAMPER DRIVESHAFT

BUTTERFLYDAMPER

CL BACKDRAFT DAMPER

10" (254) 14" (356)


PRIMARYCONTROLS ENCLOSURE

FANCONTROLS ENCLOSURE

2 32 (813) 36 (914) 11 (279) 1 1⁄2 (38) 12 x 10 (305x 254) 13 (330) 5 (127) 11 (279) 10 x 8 (254x 203)3 38 (965) 36 (914) 11 (279) 1 1⁄2 (38) 16 x 10 (406x 254) 17 (432) 5 (127) 11 (279) 16 x 8 (406x 203)4 43 (1092) 36 (914) 12 1⁄2 (318) 1 (25) 21 x 10 (533x 254) 22 (559) 5 (127) 11 (279) 19 x 11 (483x 279)

2 32 (813) 36 (914) 11 (279) 12 x 10 (305x 254) 18 1⁄2 (470) 19 (483) 11⁄2 (38) 10 1⁄2 x 9 (267x 229)3 38 (965) 36 (914) 11 (279) 16 x 10 (406x 254) 24 1⁄2 (622) 19 (483) 11⁄2 (38) 16 1⁄2 x 9 (419x 229)4 43 (1092) 36 (914) 12 1⁄2 (318) 19 x 10 (483x 254) 27 (686) 22 (559) 3⁄4 (19) 19 x 101⁄2 (483x 267)

34 5/8" (879)

INDUCED

AIR

HEATER

FAN

L


K

M

EW

12"(305)

NEH

A

PRIMARY

AIR

6"(152)

DAMPER DRIVESHAFT

BUTTERFLYDAMPER

CL

3/4"(19)

W

5 1/2" (140)

IH

IW

MULTI-POINT FLOW

SENSOR

DIA. = NOM.

-1/8" (3)BACKDRAFT DAMPER

H

PRIMARYCONTROLSENCLOSURE

FAN / HEATERCONTROLS ENCLOSURE

HINGED HEATER ACCESS PANEL

• Toggle disconnect switch (includesfan).

• Door interlock disconnect switch.• Power circuit fusing.

• Class 'A' 80/20 Ni./Ch. wire.• Dust tight construction.• Manual reset secondary thermal cut

out.

• Unique hinged heater design permitseasy access, removal andreplacement of heater elementwithout disturbing ductwork.

• Coil installed on unit discharge.• Insulated coil element wrapper.• Automatic reset high limit cut-outs

(one per element).• Single point electrical connection

(except 600V).• Positive pressure airflow switch.• Flanged outlet duct connection.• Terminal unit with coil is ETL Listed as

an assembly.• Controls mounted as standard on RH

side as shown. Terminals ordered withLH controls (optional) are built asmirror image.

• 120, 208, 240 and 277V single phase.• 208, 480 (4 wire wye) and 600V (Dual

point connection) three phase.

Available in one or two row. Coil sectionmounted on induced air inlet.

• 1/2" (13) copper tubes.• Aluminum ripple fins.• Sweat Connections:

1/2" (13) O. D. male solder. Two row 7/8" (22) O.D. male solder.

(Looking in direction of airflow).• Left hand (illustrated). Standard.• Right hand (terminals are inverted.

Built as mirror image) Optional.Connections must be selected oppositehand to controls enclosure location.

10-31-11


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UnitSize

InletSize

Airflowcfm l/s

Min. InletΔPs

"w.g. Pa

NC Levels @ Inlet pressure (ΔPs) shownDISCHARGE RADIATED

Min.ΔPs

0.5" w.g.(125 Pa)

1.0" w.g.(250 Pa)

1.5" w.g.(375 Pa)

2.0" w.g.(500 Pa)

Min.ΔPs

0.5" w.g.(125 Pa)

1.0" w.g.(250 Pa)

1.5" w.g.(375 Pa)

2.0" w.g.(500 Pa)

2

6

450 212400 189300 142200 94100 47

0.19 470.16 400.10 250.05 120.02 5

-----

-----

2120---

262523--

30292521-

-----

252321--

31312823-

35343024-

36353126-

8

800 378700 330600 283400 189175 83

0.11 270.08 200.06 150.03 70.01 2

-----

-----

20----

252421--

282624--

-----

29292621-

38363426-

4038352621

3939352623

10

1400 6611100 519

825 389550 260275 130

0.27 670.16 400.09 220.04 100.01 2

-----

20----

2624---

302824--

33292620-

28----

29282421-

3634332820

4139352924

4340363125

3

8

800 378700 330600 283400 189175 83

0.14 350.10 250.07 170.03 70.01 2

-----

-----

2120---

252523--

282825--

-----

282421--

34312921-

3634312321

3835332524

10

1400 6611100 519825 389550 260275 130

0.30 750.17 420.09 220.04 100.01 2

-----

21----

292420--

333025--

35332820-

2820---

33292520-

38343025-

4138342822

4440352924

14x8

2100 9911600 7551200 566800 378400 189

0.30 750.17 420.10 240.04 100.01 2

-----

20----

292520--

342924--

38302521-

2621---

333028--

3836332620

4340352926

4541382829

4

14x8

2100 9911600 7551200 566800 378400 189

0.08 200.04 110.02 50.01 20.01 2

-----

23----

2824---

332925--

35312621-

24----

343024--

38353025-

4140342626

4443353029

14x

10

2700 12741950 9201550 7311050 495525 248

0.10 250.05 120.03 70.01 20.01 2

-----

24----

302521--

35302823-

37333025-

26----

34302621-

40363429-

4543393424

4945413626

10-17-11

1. NC levels are calculated from thepublished raw data and based onprocedures outlined in Appendix E, AHRI885-2008. 2. Discharge sound attenuationdeductions are based on environmentaleffect, duct lining, branch power division,insulated flex duct, end reflection andspace effect and are as follows:

3. Radiated sound attenuation deductionsare based on a mineral tile ceiling andenvironmental effect and are as follows:

4. Min. inlet ΔPs is the minimum staticpressure required to achieve rated airflow(damper full open).

5. Dash (-) in space denotes an NC levelof less than 20.6. For a complete explanation and detailson NC calculations, refer to page D135and the engineering section of thiscatalog.

Discharge attenuation Octave Band2 3 4 5 6 7

< 300 cfm 24 28 39 53 59 40300 – 700 cfm 27 29 40 51 53 39

> 700 cfm 29 30 41 51 52 39

Radiated attenuation Octave Band2 3 4 5 6 7

Total dB reduction 18 19 20 26 31 36


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6-24-13

For performance table notes, see page D125; highlighted numbers indicate embedded AHRI certification points.

Unit Inlet AirflowMin. inlet Fan and 100% Primary Air – Sound Power Octave Bands @ Inlet pressure shown

Size Size cfm l/sΔPs Minimum ΔPs 0.5" wg (125Pa)ΔPs 1.0" wg (249Pa)ΔPs 1.5" wg (375Pa)ΔPs 2.0" wg (500Pa)ΔPs

" w.g. Pa 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7450 212 0.19 47 60 55 51 44 34 32 64 60 57 49 37 36 70 67 62 55 41 40 75 71 66 58 44 44 76 74 68 58 45 46400 189 0.16 40 63 53 49 41 31 29 64 59 56 47 35 33 70 66 61 53 39 38 74 70 65 56 42 42 75 73 67 57 44 45

6 300 142 0.10 25 56 47 43 35 26 21 62 57 53 44 31 29 68 63 58 49 36 36 71 68 62 52 40 41 71 70 65 54 42 44200 94 0.05 12 - 40 35 25 15 - 59 53 49 40 26 25 63 60 55 45 33 35 64 64 59 48 38 41 65 66 62 50 40 44

2100 47 0.01 2 - - 24 - - - - 50 45 37 24 24 55 56 51 40 31 35 56 59 57 45 36 39 58 60 59 48 39412800 378 0.10 25 58 53 47 41 33 28 67 62 55 51 40 35 71 67 60 55 43 39 73 71 65 58 45 42 75 73 67 60 47 44700 330 0.08 20 56 50 44 38 30 24 64 60 53 49 38 32 70 65 59 53 41 36 72 69 62 56 43 40 73 71 65 58 45 42

8 600 283 0.06 15 - 47 41 35 27 21 62 58 51 47 35 29 68 64 57 51 38 34 70 67 61 54 41 39 71 69 63 56 43 42400 189 0.03 7 - 42 37 30 25 - 59 55 48 43 30 24 63 59 54 47 34 33 64 62 57 50 36 39 64 62 58 52 37 40175 83 0.01 2 - - 26 18 - - - 47 43 35 28 23 55 52 50 41 25 34 55 54 56 48 31 30 55 55 59 52 34 331400 661 0.26 65 69 63 56 51 48 44 71 67 60 53 49 44 75 72 65 57 52 47 77 75 69 60 54 49 79 77 71 62 55 501100 519 0.16 40 63 58 51 46 42 36 69 64 57 50 45 39 73 69 62 54 48 42 75 72 66 57 50 45 76 74 69 60 52 47

10 825 389 0.09 22 - 52 46 41 35 27 65 61 53 46 40 33 70 66 59 51 44 37 72 70 64 55 48 43 74 72 66 57 49 44550 260 0.04 10 - 46 40 34 27 19 62 57 49 42 34 27 65 62 56 47 40 36 67 65 59 50 42 37 69 66 60 52 43 39275 130 0.01 2 - 40 35 29 24 18 58 51 45 37 29 27 59 55 50 40 31 27 61 57 53 44 34 31 62 59 55 47 37 34800 378 0.14 35 63 56 49 43 37 31 70 63 55 50 40 35 73 67 60 54 43 39 76 70 64 57 46 42 77 72 65 59 47 44700 330 0.10 25 61 53 46 40 33 27 68 60 53 48 38 32 72 65 59 52 41 37 74 68 62 55 44 40 75 70 64 57 46 43

8 600 283 0.07 17 57 49 43 38 30 23 65 58 52 47 36 30 70 64 58 51 40 37 72 66 61 54 42 39 74 69 63 56 44 41400 189 0.03 7 - 42 37 32 27 17 60 53 48 45 32 25 65 58 54 47 35 35 66 61 57 51 38 36 68 63 59 53 40 37175 83 0.01 2 - - - 23 - - - 47 43 34 - - 55 53 53 43 28 25 57 55 57 48 33 31 56 55 59 52 36 351400 661 0.30 75 71 64 58 52 46 41 74 67 61 54 48 42 78 72 66 59 51 46 82 76 70 62 54 48 83 78 73 65 55 501100 519 0.17 42 65 57 52 46 40 34 71 64 58 51 44 38 75 69 63 55 47 41 79 73 68 60 51 46 81 75 70 63 53 48

3 10 825 389 0.09 22 58 52 47 41 35 28 68 60 55 48 40 33 73 66 60 53 44 38 76 70 65 57 47 44 77 71 66 59 49 45550 260 0.04 10 - 45 40 35 29 - 63 56 51 45 36 28 69 62 56 49 40 37 70 64 59 51 42 39 71 65 60 52 43 41275 130 0.01 2 - - 32 30 26 - 56 49 46 38 34 25 60 53 50 41 32 36 62 56 54 45 36 33 64 58 56 48 38 362100 991 0.30 75 68 63 58 53 47 44 71 66 61 55 48 46 76 73 66 59 52 50 80 77 70 62 55 54 84 81 74 67 61 60

14 1600 755 0.17 42 62 56 51 47 41 35 69 63 58 51 44 41 75 70 63 56 48 48 78 73 66 59 51 51 79 74 68 61 53 53x 1200 566 0.09 22 55 50 46 41 35 29 67 60 55 49 40 39 71 65 60 53 45 45 73 69 63 56 49 48 74 70 65 57 50 508 800 378 0.04 10 - 43 40 35 28 - 60 55 51 45 36 35 64 60 55 49 41 39 67 64 59 51 44 44 68 66 62 54 45 47

400 189 0.01 2 - - 35 32 30 - - 49 45 39 32 26 57 59 53 44 36 36 58 63 60 49 41 41 58 62 62 51 44 442100 991 0.08 20 69 60 56 52 44 43 76 67 63 56 49 48 79 71 67 60 52 52 83 75 71 63 55 55 84 76 72 64 57 57

14 1600 755 0.04 10 61 53 49 44 36 33 71 63 59 52 44 43 75 68 64 56 49 49 79 72 67 59 52 53 80 74 70 61 55 55x 1200 566 0.02 5 - 46 42 37 29 23 67 59 55 48 40 39 71 64 61 53 46 47 75 68 65 56 50 52 76 70 67 58 51 538 800 378 0.01 2 - 40 36 30 25 - 61 54 51 44 36 37 66 60 57 49 43 43 68 64 61 52 46 47 68 66 63 54 47 49

4400 189 0.00 0 - - 33 28 24 - 59 50 47 40 33 34 57 59 55 44 38 39 59 63 62 49 42 43 59 63 65 52 45 462700 1274 0.10 25 69 62 57 53 46 43 75 68 64 57 51 50 80 73 69 61 55 54 83 76 72 64 59 58 85 79 74 66 61 60

14 1950 920 0.05 12 61 53 49 43 36 32 71 64 60 52 46 44 76 69 65 57 52 50 80 73 69 61 56 54 81 75 70 63 58 56x 1550 731 0.03 7 56 47 43 38 30 23 69 61 58 50 43 41 74 66 62 55 49 47 78 70 66 59 54 52 79 73 69 61 56 55

10 1050 495 0.01 2 - 41 36 30 25 - 65 57 53 46 39 37 70 63 59 52 47 44 73 67 64 55 50 51 75 69 65 57 50 52525 248 0.01 2 - - 32 29 25 - 58 50 46 40 33 28 61 56 52 44 39 37 63 60 56 48 43 42 64 62 60 51 45 46


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UnitSize

InletSize

Airflowcfm l/s

Min. InletΔPs

"w.g. Pa

Sound Power Octave Bands @ Inlet Pressure ΔPs shownMinimum ΔPs 0.5" w.g.(125Pa)ΔPs 1.0" w.g. (249Pa)ΔPs 1.5" w.g. (375Pa)ΔPs 2.0" w.g. (500Pa)ΔPs

2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7

2

6

450 212400 189300 142200 94100 47

0.19 470.16 400.10 250.05 120.02 5

55 48 40 36 32 2552 45 38 35 31 -- - 36 34 32 -- - 33 31 29 -- - 29 26 - -

62 53 46 40 35 3160 51 44 38 33 2559 49 42 36 33 -55 46 40 36 34 -- 40 35 29 - -

67 59 52 43 36 3267 58 51 42 35 3064 55 48 40 35 2760 52 46 38 35 26- 44 41 31 26 -

70 63 56 46 38 3569 62 55 45 37 3466 58 52 42 35 3159 54 50 40 36 31- 45 45 34 29 27

71 65 58 48 39 3770 64 57 46 38 3667 61 55 44 37 3559 55 52 41 35 33- 46 45 36 31 31

8

800 378700 330600 283400 189175 83

0.11 270.08 200.06 150.03 70.01 2

56 46 39 37 36 2756 44 38 36 36 2652 41 36 34 36 2550 39 35 33 34 23- - 33 30 25 -

65 54 46 42 39 3265 52 45 40 38 3063 50 43 38 38 2959 47 40 36 37 2749 43 38 32 32 22

72 59 51 44 41 3571 59 50 43 40 3269 55 48 40 38 3163 51 44 37 37 2852 45 42 33 31 22

74 63 55 45 41 3572 62 54 44 40 3470 59 52 42 39 3363 53 48 39 37 3153 47 47 37 33 25

73 65 57 47 42 3773 63 56 45 41 3570 61 53 44 40 3463 55 50 41 37 3254 47 49 40 33 27

10

1400 6611100 519825 389550 260275 130

0.27 670.16 400.09 220.04 100.01 2

64 54 47 43 45 3857 49 43 41 42 3550 44 38 38 41 32- 42 38 38 39 31- 41 35 37 37 25

65 55 48 43 44 3764 54 46 41 42 3461 52 44 40 41 3259 50 42 39 40 3154 46 39 38 38 27

71 61 53 45 44 3769 59 50 43 42 3568 57 49 41 40 3364 53 45 39 38 3158 49 42 38 37 28

75 65 57 47 44 3973 64 55 45 42 3770 60 52 42 39 3565 56 48 40 38 3261 52 45 39 37 30

76 68 59 48 44 4074 66 57 46 42 3871 62 54 44 39 3667 58 51 42 39 3462 54 46 40 38 33

3

8

800 378700 330600 283400 189175 83

0.14 350.10 250.07 170.03 70.01 2

57 48 43 37 31 2652 46 42 36 29 22- 44 41 34 28 20- 41 41 34 27 18- 41 42 37 30 19

64 53 46 41 34 2961 51 45 38 31 2659 49 43 37 30 2453 46 41 34 28 21- 44 41 33 28 19

69 57 50 43 37 3367 55 48 41 35 3165 54 47 39 33 3059 50 44 36 30 27- 46 44 33 27 22

71 60 53 44 39 3669 59 52 43 37 3567 57 50 41 36 3360 52 47 38 32 31- 47 47 37 30 27

72 63 55 46 41 3870 61 54 45 39 3768 59 52 43 38 3662 53 49 41 34 32- 47 50 41 32 30

10

1400 6611100 519825 389550 260275 130

0.30 750.17 420.09 220.04 100.01 2

64 54 49 43 40 3558 48 46 40 34 27- 45 44 38 28 18- 43 43 36 25 -- 42 42 36 26 -

68 58 51 44 41 3765 55 49 43 36 3262 53 48 41 33 2658 50 45 38 30 2152 46 43 35 28 19

72 63 56 47 42 3969 61 54 46 39 3566 58 51 43 36 3162 54 47 39 32 2954 48 45 37 28 22

75 68 60 50 44 4272 65 58 48 41 3969 62 54 45 37 3664 57 50 41 34 3357 51 48 40 31 26

77 69 62 52 46 4474 67 60 50 42 4070 63 56 46 39 3865 58 51 42 35 3558 53 50 42 34 30

14x8

2100 9911600 7551200 566800 378400 189

0.30 750.17 420.10 250.04 100.01 2

63 54 51 46 40 3656 50 47 41 34 2852 46 44 37 28 17- 43 43 34 25 -- 39 42 35 27 -

68 58 53 48 43 3966 55 49 44 39 3664 51 45 40 37 3657 47 42 37 35 35- 45 41 35 33 35

72 63 56 51 47 4571 60 52 47 44 4268 56 49 44 42 4163 53 46 41 41 4156 52 46 39 40 40

76 68 59 53 49 4874 63 55 49 47 4670 60 52 46 46 4565 57 49 44 45 4557 56 52 43 44 44

78 69 60 55 51 5075 65 57 51 49 4972 62 55 48 48 4866 59 53 46 47 4756 55 54 46 46 47

4

14x8

2100 9911600 7551200 566800 378400 189

0.08 200.04 100.02 50.01 20.01 2

61 53 50 45 40 3556 45 44 38 32 2650 41 38 32 27 17- - 34 27 24 -- - 34 27 21 -

69 59 54 49 44 4066 54 49 44 40 3661 50 46 41 36 3256 46 42 37 32 2749 41 38 32 28 22

72 62 57 51 47 4470 59 53 48 44 4166 56 50 45 42 4062 52 46 40 37 3453 49 44 36 32 30

75 65 59 53 49 4774 62 56 50 47 4669 59 53 47 45 4763 56 50 44 41 3955 54 52 42 37 36

77 67 61 55 52 5076 64 58 52 49 4970 62 56 49 47 5064 58 52 46 43 4254 53 54 45 40 39

14x

10

2700 12741950 9201550 7311050 495525 248

0.10 250.05 120.03 70.01 20.01 2

62 55 52 47 44 3654 48 45 39 35 2652 44 41 35 31 23- 43 37 32 28 18- 40 36 30 25 -

69 61 56 50 47 4266 56 51 45 41 3763 53 49 44 40 3559 49 45 41 38 3552 45 40 37 35 32

74 65 60 54 51 4871 60 54 48 45 4169 58 52 47 45 4265 54 49 44 43 4457 49 44 41 40 39

78 68 62 56 53 5076 64 57 51 48 4673 62 56 50 48 4769 59 53 47 45 4759 53 50 45 44 43

81 71 64 58 55 5578 67 60 53 50 4875 65 59 53 51 5171 62 56 50 48 4960 55 52 47 46 46

10-20-11

1. Sound levels are primary air only withfan turned off – cooling cycle.

2. Radiated sound power is thebreakout sound transmitted through theunit casing walls and the induced airinlet.

3. Sound power levels are in decibels,dB re 10-12 watts.

4. All sound data listed by octave bandsis raw data without any corrections forroom absorption or duct attenuation.Dash (-) in space indicates soundpower level is less than 20 dB.

5. Min. inlet ΔPs is the minimumoperating pressure of the primary airvalve section.

6. Data derived from independent testsconducted in accordance withANSI/ASHRAE Std 130-2008 and AHRIStandard 880-2011.

7. highlighted numbers indicateembedded AHRI certification points.


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UnitSize

InletSize

Airflowcfm l/s

DischargeΔPs

"w.g. Pa

NC Levels

Discharge Radiated

2 ALL

700 330550 260400 189250 118

0.25 620.25 620.25 620.25 62

----

34313126

3 ALL

850 401700 330550 260350 165

0.25 620.25 620.25 620.25 62

20---

38353228

4 ALL

1350 6371100 519825 389450 212

0.25 620.25 620.25 620.25 62

2821--

45413631

7-12-11

1. NC levels are calculated from thepublished raw data and based onprocedures outlined in Appendix E, AHRI885-2008. 2. Discharge sound attenuationdeductions are based on environmentaleffect, duct lining, branch power division,insulated flex duct, end reflection andspace effect and are as follows:

3. Radiated sound attenuation deductionsare based on a mineral tile ceiling andenvironmental effect and are as follows:

4. Min. inlet ΔPs is the minimum staticpressure required to achieve rated airflow(damper full open).

5. Dash (-) in space denotes an NC levelof less than 20.6. For a complete explanation and detailson NC calculations, refer to page D135and the engineering section of thiscatalog.

Discharge attenuation Octave Band2 3 4 5 6 7

< 300 cfm 24 28 39 53 59 40300 – 700 cfm 27 29 40 51 53 39

> 700 cfm 29 30 41 51 52 39

Radiated attenuation Octave Band2 3 4 5 6 7

Total dB reduction 18 19 20 26 31 36


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UnitSize

InletSize

Airflowcfm l/s

DischargeΔPs

"w.g. Pa

Sound Power Octave Bands

Discharge Radiated

2 3 4 5 6 7 2 3 4 5 6 7

2 ALL

700 330550 260400 189250 118

0.25 620.25 620.25 620.25 62

68 64 60 55 46 4865 60 56 51 41 4361 57 54 47 37 38- 53 49 41 30 26

67 60 59 54 49 4265 58 56 50 46 3863 57 56 48 44 3659 54 52 43 38 29

3 ALL

850 401700 330550 260350 165

0.25 620.25 620.25 620.25 62

74 65 63 58 52 5571 61 60 54 47 5070 56 56 50 42 4566 52 51 44 36 35

72 65 63 59 51 4368 60 60 55 47 3867 57 57 51 43 3362 53 53 46 38 26

4 ALL

1350 6371100 519825 389450 212

0.25 620.25 620.25 620.25 62

79 71 70 68 62 6375 66 67 62 56 5770 60 62 56 49 5063 52 53 46 38 36

77 72 69 66 59 5173 67 66 62 54 4669 61 61 56 47 3964 55 56 49 40 30

D123


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2-12-15

Performance Data • AHRI Certification and Performance NotesModel Series 37N • Low Profile • Parallel Flow • AHRI Certification Rating PointsVAV: Fiberglass

Performance Notes for Sound Power Levels:1. Discharge sound power is the noise emitted from the

unit discharge into the downstream duct. DischargeSound Power Levels (SWL) now include duct endreflection energy as part of the standard rating.Including the duct end correction provides soundpower levels that would normally be transmitted intoan acoustically, non-reflective duct. The effect ofincluding the energy correction to the discharge SWL,is higher sound power levels when compared toprevious AHRI certified data. For more information onduct end reflection calculations see AHRI 880-2011.

2. Radiated sound power is the breakout noisetransmitted through the unit casing walls.

3. Sound power levels are in decibels, dB re 10-12 watts.4. All sound data listed by octave bands is raw data

without any corrections for room absorption or ductattenuation. Dash (-) in space indicates sound powerlevel is less than 20 dB or equal to background.

5. Minimum inlet ΔPs is the minimum operating pressurerequirement of the unit (damper full open) to achieverated primary CFM. Asterisk (*) in space indicates thatthe minimum inlet static pressure requirement isgreater than 0.5" w.g. (125 Pa) at rated airflow.

6. Data derived from independent tests conducted inaccordance with ANSI/ASHRAE Standard 130 andAHRI Standard 880.

7. 100% primary air sound power levels are coolingcycle (fan turned off).

8. Fan airflow is rated fan volume at .25" w.g. (62 Pa)downstream static pressure.

9. Fan only sound power levels are 100% recirculatedair; fan only; in heating cycle.

10. Fan Watts are the maximum electrical power inputat rated fan volume.

Ratings are certified inaccordance with AHRIStandards.

† PSC Motor.*Primary air valve is closed and therefore primary cfm is zero.

UnitSize

InletSize

PrimaryAirflow

Min. Inlet 100% Primary @ 1.5" w.g. (375 Pa) ΔPsw/ .25" w.g. (62 Pa) Discharge ΔPs Fan Airflow Fan†

Watts

Fan Only* @ 25" w.g. (62 Pa)ΔPs

ΔPs Discharge Radiated Discharge Radiatedcfm l/s " w.g. Pa 2 3 4 5 6 7 2 3 4 5 6 7 cfm l/s 2 3 4 5 6 7 2 3 4 5 6 7

2 10 1100 519 0.16 40 75 72 66 57 50 45 73 64 55 45 42 37 550 260 275 65 60 56 51 41 43 65 58 56 50 46 383 14 x 8 1600 755 0.17 42 78 73 66 59 51 51 74 63 55 49 47 46 700 330 355 71 61 60 54 47 50 68 60 60 55 47 384 14 x 10 1950 920 0.05 12 80 73 69 61 56 54 76 64 57 51 48 46 1100 519 570 75 66 67 62 56 57 73 67 66 62 54 46


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10-18-11

• Fan curves shown are applicable to 120,208, 240 and 277 volt, single phase PSCmotors.

0.0 0.1 0.2 0.3 0.4 0.5 “w.g.

0 25 50 75 100 125 Pa

CFM

800

700

600

500

400

300

200

100

0

NO HEAT ORELECTRIC HEAT

MAXIMUM

MINIMUM


l/s

378

330

283

236

189

142

94

47

00.0 0.1 0.2 0.3 0.4 0.5 “w.g.

0 25 50 75 100 125 Pa

1000

900

800

700

600

500

400

300

200

MAXIMUM

MINIMUM

472

425

378

330

283

236

189

142

94

l/s CFM

0.0 0.1 0.2 0.3 0.4 0.5 “w.g.

0 25 50 75 100 125 Pa

1600

1500

1400

1300

1200

1100

1000

900

800

700

600

500

400

300

200

MAXIMUM

MINIMUM

755

708

661

614

566

519

472

425

378

330

283

236

189

142

94

l/s CFM

2 1/6 4.6 1.8 1.8 1.33 1/4 5.4 2.2 2.2 1.74 1/2 7.5 3.5 3.5 2.6

2 ROW H. W. COIL

1 ROW H. W. COIL NO HEAT ORELECTRIC HEAT

2 ROW H. W. COIL

1 ROW H. W. COIL

NO HEAT ORELECTRIC HEAT

2 ROW H. W. COIL

1 ROW H. W. COIL


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10-18-11

®

700

650

600

550

500

450

400

350

300

250

200

150

100

700

650

600

550

500

450

400

350

300

250

200

150

100

0.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125

MAXIMUM

MINIMUM

MAXIMUM

MINIMUM

330

307

283

260

236

212

189

165

142

118

94

71

47

330

307

283

260

236

212

189

165

142

118

94

71

47

0.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125

2 * 2.7 1.9 1.8 1.6



• The fan curves for the ECM are unlike those fortraditional PSC motors. The ECM is pressureindependent and constant volume in operationat factory or field set point within the shadedarea. Airflow does not vary with changing staticpressure conditions. The motor compensates forany changes in external static pressure orinduced air conditions such as filter loading.

• Airflow can be set to operate on horizontalperformance line at any point within shadedarea using the solid state volume controllerprovided.

• Fan curves shown are applicable to 120/240,208 and 277 volt, single phase ECM’s. ECM’s,although DC in operation, include a built-ininverter.


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10-20-11

®

1000

900

800

700

600

500

400

300

200

MAXIMUM

MINIMUM

472

425

378

330

283

236

189

142

940.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125

3 * 4.8 3.3 3.1 2.7






1000

900

800

700

600

500

400

300

200

1000

900

800

700

600

500

400

300

200

0.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125

MAXIMUM

MINIMUM

MAXIMUM

MINIMUM

472

425

378

330

283

236

189

142

94

472

425

378

330

283

236

189

142

940.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125


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10-20-11

®

1250

1150

1050

950

850

750

650

550

450

350

250

MAXIMUM

MINIMUM

590

543

496

448

401

354

307

260

212

165

1180.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125

4 * 5.7 3.9 3.7 3.2






1250

1150

1050

950

850

750

650

550

450

350

250

1250

1150

1050

950

850

750

650

550

450

350

250

0.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125

MAXIMUM

MINIMUM

MAXIMUM

MINIMUM

590

543

496

448

401

354

307

260

212

165

118

590

543

496

448

401

354

307

260

212

165

1180.0 0.1 0.2 0.3 0.4 0.50 25 50 75 100 125


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10-20-11

100 200 300 400 500 600 700 47 94 142 189 236 283 330

30

25

20

15

10

5

8.8

7.3

5.9

4.4

2.9

1.5

kW GPM l/s543

2

1.5

1

0.5

.32

.25

.19

.13

.09

.06

.03

MBH

0.5 1 2 3 4 5.03 .06 .13 .19 .25 .32

1 ROW

2 ROW

1 ROW

2 ROW

10.08.0

6.0

4.0

2.0

1.00.8

0.6

0.4

0.2

0.1

18

16

14

12

10

8

6

4

5.3

4.7

4.1

3.5

2.9

2.3

1.8

1.2100 200 300 400 500 600 700 47 94 142 189 236 283 330

kW MBH GPM l/s

543

21.5

1

0.5

.32

.25

.19

.13

.09

.06

.03

kPa ft. H2O29.823.9

17.9

11.9

6.0

3.02.4

1.8

1.2

0.6

0.3

100 200 300 400 500 75047 94 142 189 236 354

1.000.80

0.60

0.40

0.20

0.100.08

0.06

0.04

0.02

0.01

Pa in.H2O249447

149

100

50

2520

15

10

5

2

Sensible HeatFactor

0 (0) 1.002000 (610) 0.943000 (914) 0.904000 (1219) 0.875000 (1524) 0.846000 (1829) 0.817000 (2134) 0.78

Δ

Factor .455 (.459) .545 (.541) .636 (.639) .727 (.721) .818 (.820) .909 (.918) 1.00 (1.00) 1.09 (1.10) 1.18 (1.18) 1.27 (1.28) 1.36 (1.36)

1. Capacities are in MBH (kW)*.*Thousands of Btu per hour (kilo Watts).




5. Connections: 1 Row 1/2" (13), 2 Row 7/8" (22);O.D. male solder.



WTD (°C) = .224 x kWl/s



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10-20-11

200 300 400 500 600 700 800 900 1000 94 142 189 236 283 330 378 425 472

45

40

35

30

25

20

15

10

13.2

11.7

10.3

8.8

7.3

5.9

4.4

2.9

kW MBH GPM l/s

107.5

5

3

2

1

0.5

.63

.47

.32

.19

.13

.06

.03

0.5 1 2 3 5 7.5.03 .06 .13 .19 .32 .47

1 ROW

2 ROW

1 ROW

2 ROW

10.08.0

6.0

4.0

2.0

1.00.8

0.6

0.4

0.2

0.1

200 300 400 500 600 700 800 900 1000 94 142 189 236 283 330 378 425 472

24

21

18

15

12

9

6

7.0

6.2

5.3

4.4

3.5

2.6

1.8

kW MBH GPM l/s

107.553

2

1

0.5

.63

.47

.32

.19

.13

.06

.03

kPa ft. H2O30.024.0

18.0

12.0

6.0

3.02.4

1.8

1.2

0.6

0.3

200 400 600 70094 189 283 330

1.000.80

0.60

0.40

0.20

0.100.08

0.06

0.04

0.02

0.01

Pa in.H2O249199

149

100

50

2520

15

10

5

2

Sensible HeatFactor

0 (0) 1.002000 (610) 0.943000 (914) 0.904000 (1219) 0.875000 (1524) 0.846000 (1829) 0.817000 (2134) 0.78

Δ

Factor .455 (.459) .545 (.541) .636 (.639) .727 (.721) .818 (.820) .909 (.918) 1.00 (1.00) 1.09 (1.10) 1.18 (1.18) 1.27 (1.28) 1.36 (1.36)








WTD (°C) = .224 x kWl/s



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10-20-11

300 500 700 900 1100 1300 1500 142 236 330 425 519 613 708

60

50

40

30

20

10

17.6

14.7

11.7

8.8

5.9

2.9

kW MBH GPM l/s

107.5

5

3

2

1

0.5

.63

.47

.32

.19

.13

.06

.03

0.5 1 2 3 5.03 .06 .13 .19 .32

1 ROW

2 ROW

1 ROW

2 ROW

10.08.0

6.0

4.0

2.0

1.00.8

0.6

0.4

0.2

0.1

300 500 700 900 1100 1300 1500 142 236 330 425 519 613 708

35

30

25

20

15

10

10.3

8.8

7.3

5.9

4.4

2.9

kW MBH GPM l/s

107.55

3

2

1

0.5

.63

.47

.32

.19

.13

.06

.03

kPa ft. H2O29.823.9

17.9

11.9

6.0

3.02.4

1.8

1.2

0.6

0.3

300 600 900 1200142 283 425 566

1.000.80

0.60

0.40

0.20

0.100.08

0.06

0.04

0.02

0.01

Pa in.H2O249447

149

100

50

2520

15

10

5

2

Sensible HeatFactor

0 (0) 1.002000 (610) 0.943000 (914) 0.904000 (1219) 0.875000 (1524) 0.846000 (1829) 0.817000 (2134) 0.78

Δ

Factor .455 (.459) .545 (.541) .636 (.639) .727 (.721) .818 (.820) .909 (.918) 1.00 (1.00) 1.09 (1.10) 1.18 (1.18) 1.27 (1.28) 1.36 (1.36)








WTD (°C) = .224 x kWl/s



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10-28-11

Furnish and install of the sizes

and capacities as indicated on the drawings. Units shall be pressureindependent with (pneumatic, analog electronic, digital) controls.

The entire terminal unit shall be designed and built as asingle unit. The units shall be provided with a primary variable airvolume damper that controls the air quantity in response to a(thermostat or digital controller/zone sensor). The units shall alsoinclude a fan that sequences on and off in response to the (thermostator digital controller/zone sensor). The space limitations shall bereviewed carefully to ensure that all units will fit into the space allowed.

Unit casings shall be 20 ga. (1.00) galvanized steel. Unitshall be fully lined with fiberglass insulation which shall be 1/2"(13) thick dual density insulation complying with NFPA 90 for fire andsmoke resistivity and UL 181 for erosion. Any cut edges of insulationshall be coated with NFPA 90 approved sealant.

The terminal casing shall have full size bottom accesspanels for easy access to motor and blower assembly and formaintenance and replacement of parts without disturbing ductconnections. Access panels shall be attached to casing with (screws,1/4 turn fasteners).

Units shall have round or rectangular inlets for the primaryair connections and shall have a minimum 6" (152) deep inlet ductcollar for field connection. Models with no heat or electric heat shallhave rectangular outlets suitable for flanged duct connections.Models with hot water coils shall have an induction inlet designed toaccept flanged hot water coils. Duct connection to hot water coil shallbe flanged ducts. Casing shall have mounting area for hanging bysheet metal straps from a concrete slab.

The damper shall be round or rectangular and constructedof laminated 20 ga. (1.00) galvanized steel with a peripheral gasketand a solid steel 1/2" (13) diameter shaft, pivoted in self-lubricatingbronze oilite bearings. Damper leakage shall not exceed 2% of theterminal rated airflow at 3" w.g. (746 Pa) inlet static pressure.

Entire terminal unit shall be factory assembled with(pneumatic, analog electronic) controls. All components including allcontrols except the room (thermostat or zone sensor) and(pneumatic piping, field wiring) shall be factory installed andmounted with the unit. Digital controls shall be supplied by BAScontrols contractor. Digital controls are optionally factory mountedand wired.

Provide a (pneumatic, analog electronic, digital) flowcontrol device that will limit the maximum and minimum airflow to thatscheduled on the drawings. Control of the terminal unit shall bepressure independent.

(The sequence of operation should be described here, ifnot part of the temperature controls specifications).

Blower casings shall be constructed of heavy gaugecoated steel. Blower wheel shall be forward curved centrifugal type,dynamically balanced and driven by direct drive, single speed splitcapacitor motor(s). Motor(s) shall be suitable for 120 or 208 or 240or 277 volt single phase power. Motors shall have built-in overloadprotection, bearings capable of low speed oiling, permanently oiledbearings and be of an anti-backward rotation design. Fan assemblyshall be mounted so as to isolate the casing from the motor andblower vibration at no less than four points. Isolation shall besupplied at the motor and at the blower mounting points. A gasketedbackdraft damper shall be included on the fan discharge to reduceprimary air leakage back into the plenum space.

A solid state SCR fan speed controller sized and designedfor the specific blower motor combination shall be provided to allowinfinitely adjustable fan speed from the minimum voltage stop to theline voltage signal to the motor. A minimum voltage stop shall beemployed to ensure that fan cannot run in stall mode.

Units shall incorporate a single point electrical and/orpneumatic connection for the entire unit. All electrical componentsshall be ETL listed or recognized and installed in accordance with theNational Electrical Code. All electrical components shall be mountedin a control box. The entire assembly shall be ETL listed and labeledto meet UL 1995 and CSA C22.2 No. 236.

All sound data shall be compiled in an independentlaboratory and in accordance with the latest version of AHRI 880. Allunits shall be AHRI certified and bear the AHRI certification label.

Unit maximum radiated and discharge sound power levelswith fan only and 0.25" w.g. (63 Pa) discharge static pressure shallnot exceed the values in Tables 1 and 2 at the specified airflow. Nocredit or reduction shall in any way be considered for room, plenum,ceiling, downstream duct, elbows and/or similar item effects.

Maximum Radiated Sound Power Levels.Heating Cycle (Fan only).

Maximum Discharge Sound Power Levels.Heating Cycle (Fan only).

Unit maximum radiated and discharge sound power levelswith 100% primary air and fan off at 1.0" w.g. (249 Pa) inlet pressureand 0.25" w.g. (63 Pa) discharge static pressure shall not exceed thevalues in Table 3 and 4 at the specified airflow. No credit or reductionshall in any way be considered for room, plenum, ceiling,downstream duct, elbows and/or similar item effects.

Maximum Radiated Sound Power Levels.Cooling Cycle (100% primary air and fan off).

Maximum Discharge Sound Power Levels.Cooling Cycle (100% primary air and fan off).


2 550 260 65 58 56 50 46 383 700 330 68 60 60 55 47 384 825 389 69 61 61 56 47 39


2 550 260 57 56 55 50 41 433 700 330 65 58 59 54 47 504 825 389 65 58 61 56 49 50


2 – 08 700 330 71 59 50 43 40 323 – 10 1100 519 69 61 54 46 39 35

4 – 14 x 08 1600 755 70 59 53 48 44 41


2 – 08 700 330 61 61 57 53 41 363 – 10 1100 519 69 66 62 55 47 41

4 – 14 x 08 1600 755 70 66 64 56 49 49


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10-28-11

Furnish and install with

integral electric heat of the sizes and capacities as indicated on thedrawings. Units shall be pressure independent with (pneumatic,analog electronic, digital) controls.

An electric heater shall be factory mounted and pre-wired asan integral package with the fan powered terminal unit. Heaters shallbe sized as shown on the drawings. The entire assembly including theelectric heater shall be ETL listed for zero clearance and so labeledand shall meet all requirements of the latest National Electrical Code,(CSA C22.2 No.236). The unit shall have a single point electricaland/or pneumatic connection (dual point electrical on 600V). Heatercasing and panel shall be a minimum of 20 ga. (1.00) galvanized steel.Each heater shall be complete with automatic reset high limit thermalcut-outs, control voltage transformer as required, ground terminal, fanrelay for interlocking the heater and fan and high grade nickel chromealloy wire.Element wires shall be supported by ceramic isolators. Each heater shallbe supplied with factory supplied and pre-wired branch circuit fusing asrequired by NEC and UL. Circuiting and fusing shall also be inaccordance with the circuiting requirements as shown on the plans.Additional accessories shall include (control transformer, circuitfusing, disconnect switch, pneumatic electric switches) for stagingthe heater.



An electric heater shall be factory mounted and pre-wired asan integral package with the fan powered terminal unit. Heaters shallbe sized as shown on the drawings. The entire assembly including theelectric heater shall be ETL listed for zero clearance and so labeledand shall meet all requirements of the latest National Electrical Code,(CSA C22.2 No.236). The unit shall have a single point electricaland/or pneumatic connection (dual point electrical on 600V). Heatercasing and panel shall be a minimum of 20 ga. (1.00) galvanized steel.Each heater shall be complete with automatic reset high limit thermalcut-outs, control voltage transformer as required, ground terminal,fan relay for interlocking the heater and fan and high grade nickelchrome alloy wire.Element wires shall be supported by ceramic isolators. Each heater shallbe supplied with factory supplied and pre-wired branch circuit fusing asrequired by NEC and UL. Circuiting and fusing shall also be inaccordance with the circuiting requirements as shown on the plans.Additional accessories shall include (control transformer, circuitfusing, disconnect switch, pneumatic electric switches) for heatercontrol.Heater shall be capable of providing proportional control of heatercapacity from an input signal of 4 – 20 mA, 2 – 10 VDC or 0 – 10 VDC.

The SCR controller shall provide a 1 – 24 VDC pulsed output toSSR(s) [solid state relay(s)] in proportion to zone heating demand.The SSR’s shall switch with zero cross over to reduce system noiseand thermal shock on heater coils.



An electric heater shall be factory mounted and pre-wired asan integral package with the fan powered terminal unit. Heaters shallbe sized as shown on the drawings. The entire assembly including theelectric heater shall be ETL listed for zero clearance and so labeledand shall meet all requirements of the latest National Electrical Code,(CSA C22.2 No.236). The unit shall have a single point electricaland/or pneumatic connection (dual point electrical on 600V). Heatercasing and panel shall be a minimum of 20 ga. (1.00) galvanized steel.Each heater shall be complete with automatic reset high limit thermalcut-outs, control voltage transformer as required, ground terminal, fanrelay for interlocking the heater and fan and high grade nickel chromealloy wire.Element wires shall be supported by ceramic isolators. Each heater shallbe supplied with factory supplied and pre-wired branch circuit fusing asrequired by NEC and UL. Circuiting and fusing shall also be inaccordance with the circuiting requirements as shown on the plans.Additional accessories shall include (control transformer, circuitfusing, disconnect switch, pneumatic electric switches) for heatercontrol.The SCR controller shall contain a discharge temperature sensorcapable of limiting leaving air temperature to a user defined setpoint.The SCR controller shall pulse the coil to maintain zone demandwhile providing the set maximum discharge air temperature. Uponmeasuring a discharge air temperature above the user definedsetpoint, the controller shall reduce heater capacity to maintainmaximum allowable discharge air temperature. The discharge airtemperature setpoint shall be adjustable from 80 – 100°F (27– 149°C)by use of a controller mounted potentiometer.

Furnish and install

with integral hot water coils of the sizes and capacities as indicatedon the drawings. Units shall be pressure independent with(pneumatic, analog electronic, digital) controls.

A hot water coil shall be factory mounted as an integralpackage with the fan powered terminal unit. Hot water coils shall besized as shown on the drawings. The entire assembly including thehot water coil shall be ETL listed, labeled and shall meet allrequirements of the latest National Electrical Code (CSA C22.2No.236). The unit shall have a single point electrical and/orpneumatic connection. Access panels on the bottom of the unit shallpermit easy access to the coil for inspection and cleaning. Coils shallbe 1 or 2 row as required and heating capacities shall be as shownon the plans. Coils shall have aluminum plate fins spaced 10 per inchand bonded to 1/2" (13) O.D. copper tubes. Copper connections


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11-1-11

shall be sweat. All coils shall be tested at a minimum of 350 psi (2.4MPa) under water to produce a guaranteed working pressure of 300psi (2.1 MPa). Controls and valves for the hot water coils shall befield mounted. Heating coils shall be located on the induction side ofthe fan.

Unit casings shall be 20 ga. (1.00) galvanized steel. Unitshall be fully lined with non-porous, sealed liner which complies withNFPA 90A and UL 181. Installation shall be 1/2" (13) minimumthickness, 4 lb./cu. ft. (64 kg/m3) density with reinforced aluminumfoil-scrim-kraft (FSK) facing. All cut edges shall be secured with steelangles or end caps to encapsulate edges and prevent erosion.Insulation shall be Nailor Steri-Liner or equal.

Unit casings shall be 20 ga. (1.00) galvanized steel. Unitshall be fully lined with a non-porous closed cell elastomeric foamliner which complies with NFPA 90A, ASTM E84 and UL 181.Installation shall be 3/8" (10) minimum thickness and secured to theinterior of the terminal with mechanical fasteners. No fiberglass ispermitted. Insulation shall be Nailor Fiber-Free Liner or equal.

Blower casings shall be constructed of heavy gaugecoated steel. Blower wheel shall be forward curved centrifugal type,dynamically balanced and driven by Electronically CommutatedMotor(s). Motor(s) shall be suitable for 120 or 208 or 240 or 277 voltsingle phase power. Fan airflow volume shall be factory set. Fanassembly shall be mounted so as to isolate the casing from the motorand blower vibration at no less than four points. Isolation shall besupplied at the motor and at the blower mounting points. A gasketedbackdraft damper shall be included on the fan discharge to reduceprimary air leakage back into the plenum space.


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9-30-11

The fan powered terminal

unit performance data is presented in two forms. The laboratory obtained discharge and radiated sound powerlevels in octave bands 2 through 7 (125 through 4000 Hz) centerfrequency for each unit size at various flow rates and inlet staticpressures is presented. This data is derived in accordance withANSI/ASHRAE Standard 130-2008 and AHRI Standard 880-2011. This data is "raw" with no attenuation deductions andincludes AHRI Certification standard rating points. Nailor also provides an "NC Level" table as an application aid interminal selection, which include attenuation allowances asexplained below. The suggested attenuation allowances aretypical and are not representative of specific job site conditions.It is recommended that the sound power level data be used anda detailed NC calculation be performed using the proceduresoutlined in AHRI 885-2008 for accurate space sound levels.

Tabulated NC levels are based on attenuation values as outlinedin AHRI Standard 885-2008 "Procedure for Estimating OccupiedSpace Sound Levels in the Application of Air Terminals and AirOutlets". AHRI Standard 885-2008, Appendix E provides typicalsound attenuation values for air terminal discharge sound and airterminal radiated sound. As stated in AHRI-885-2008, Appendix E, "These values can beused as a quick method of estimating space sound levels whena detailed evaluation is not available. The typical attenuationvalues are recommended for use by manufacturers to estimateapplication sound levels. In product catalogs, the end useenvironments are not known and the following factors areprovided as typical attenuation values. Use of these values willallow better comparison between manufacturers and give theend user a value which will be expected to be applicable formany types of space." Please refer to the Performance Data Caveat on page A20 ofthis catalog.

Table E1 of Appendix E provides typical radiated soundattenuation values for three types of ceiling: Type 1 – GlassFiber; Type 2 – Mineral Fiber; Type 3 – Solid Gypsum Board.Since Mineral Fiber tile ceilings are the most commonconstruction used in commercial buildings, these values havebeen used to tabulate Radiated NC levels.The following table provides the calculation method for theradiated sound total attenuation values based on AHRI Standard885-2008.

The ceiling/space effect assumes the following conditions:1. 5/8" (16) tile, 20 lb/ft3 (320 kg/m3) density.2. The plenum is at least 3 feet (914) deep.3. The plenum space is either wide [over 30 feet (9 m)] or lined

with insulation.4. The ceiling has no significant penetration directly under the

unit.

Table E1 of Appendix E provides typical discharge soundattenuation values for three sizes of terminal unit.1. Small box; Less than 300 cfm (142 l/s)

[Discharge Duct 8" x 8" (203 x 203)].2. Medium box; 300 – 700 cfm (142 - 330 l/s)

[Discharge Duct 12" x 12" (305 x 305)].3. Large box; Greater than 700 cfm (330 l/s)

[Discharge Duct 15" x 15" (381 x 381)].These attenuation values have been used to tabulate DischargeNC levels applied against the terminal airflow volume and notterminal unit size.The following tables provide the calculation method for thedischarge sound total attenuation values based on AHRIStandard 885-2008.

1. Flexible duct is non-metallic with 1" (25) insulation.2. Space effect (room size and receiver location) 2500 ft.3

(69 m3) and 5 ft. (1.5 m) distance from source.

For a complete explanation of the attenuation factors and theprocedures for calculating room NC levels, please refer to theacoustical engineering guidelines at the back of this catalog andAHRI Standard 885-2008.

Environmental Effect 2 1 0 0 0 0

Ceiling/Space Effect 16 18 20 26 31 36

Environmental Effect 2 1 0 0 0 05 ft. (1.5 m) 1" (25) Duct Lining 2 6 12 25 29 18Branch Power Division (1 outlet) 0 0 0 0 0 05 ft. (1.5 m), 8 in. dia. (203) Flex Duct 5 10 19 19 21 12End Reflection 10 5 20 1 0 0Space Effect 5 6 7 8 9 10

Environmental Effect 2 1 0 0 0 05 ft. (1.5 m) 1" (25) Duct Lining 2 4 10 20 20 14Branch Power Division (2 outlets) 3 3 3 3 3 35 ft. (1.5 m), 8 in. dia. (203) Flex Duct 5 10 19 19 21 12End Reflection 10 5 2 1 0 0Space Effect 5 6 7 8 9 10

Environmental Effect 2 1 0 0 0 05 ft. (1.5 m) 1" (25) Duct Lining 2 3 9 18 17 12Branch Power Division (3 outlets) 5 5 5 5 5 55 ft. (1.5 m), 8 in. dia. (203) Flex Duct 5 10 19 19 21 12End Reflection 10 5 2 1 0 0Space Effect 5 6 7 8 9 10


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are tested with the fan terminal inaccordance with UL Standard 1995 and meet allrequirements of the National Electric Code and CSA.Units are listed and labeled by the ETL Testing Laboratoryas a total package. All controls are enclosed in a NEMA 1electrical enclosure on the side of the fan package foreasy access.

All wiring for the motor and heater terminates in theenclosure for single point electrical connection in the field.Each unit is supplied with a wiring diagram. Note: NECrequires a means to disconnect the heater power supplywithin sight or on the terminal.

• Automatic reset high limit thermal cut-outs.• Nickel-chrome heating elements.• Magnetic contactors per stage on terminals with DDC

or analog electronic controls.• P.E. switch per stage to carry load or pilot duty with

magnetic contactors as required with pneumatic control.• Positive pressure airflow safety switch.• P.E. switch for fan on parallel terminals (P35NE) with

pneumatic control.• Fan relay for DDC fan terminals.• Control voltage transformer (Class 2) for DDC or analog

electronic terminals.

• Toggle disconnect switch.• Door interlocking disconnect switch.• Mercury contactors.• Power circuit fusing.• Dust tight control enclosure.• Class 'A' 80/20 nickel/chrome element wire.• Manual reset high limits.• SCR Control.

The SCR (Silicon Controlled Rectifier) option providesinfinite solid state heater control using a proportionalsignal (0 – 10 Vdc or 4 – 20 mA). This option may bespecified compatible with pneumatic, analog electronic ordigital (DDC) controls.

Time proportional control of the electric heater providessuperior comfort and energy savings. The SCR controllermodulates the heater to supply the exact amount of heatbased upon the zone requirement. Rooms set points aremaintained more accurately, undershoot and overshootas associated with staged heat are eliminated, reducingoperation costs.

SCR controllers provide silent operation, as mechanicalstaged contactors are eliminated. Zero cross switching ofthe thyristor prevents electrical noise.

The table above is a quick reference guide, to illustrate therelationship between electrical power supply, heater capacityin kilowatts and terminal unit size that are available.

• Pneumatic and digital control terminals are availablewith up to 3 stages of heat. Analog electronic controlterminals are available with 1 or 2 stages of heat only. Aminimum of 0.5 kW per stage is required.

• Voltage and kilowatt ratings are sized so as not toexceed 48 amps, in order to avoid the NEC coderequirement for circuit fusing.

• A minimum airflow of 70 cfm (33 l/s) per kW is requiredfor any given terminal in order to avoid possible nuisancetripping of the thermal cutouts.

• Discharge air temperature shouldnot exceed 120°F (49°C).

Tested and approved tothe following standards:

2 7.0 7.0 7.0 7.03 8.0 11.5 11.5 11.5

35SE 4 8.0 11.5 14.5 16.035SEST 5 8.0 11.5 14.5 20.5

6 8.0 11.5 14.5 30.07 8.0 11.5 14.5 30.01 7.0 7.0 7.0 7.0

37SE 2 10.0 11.5 11.5 11.537SEST 3 10.0 11.5 13.5 13.5

4 10.0 11.5 14.5 27.02 7.0 7.0 7.0 7.03 8.0 11.5 11.5 11.5

35NE5 8.0 11.5 14.5 23.06 8.0 11.5 14.5 27.0


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When considering the capacity and airflow for the heater,discharge air temperature can be an important factor.Rooms use different types of diffusers and they areintended to perform different functions. Slots that blendthe air at the glass and set up air curtains within theroom, must be able to blow the air very low in the room.Hot air will be too buoyant to be effective in this case.Discharge air temperatures for this application should bein the 85 – 90°F (29 – 32°C) range.

Diffusers in the center of the room blend their dischargeair as it crosses the ceiling. Discharge air temperatures inthis application can be as high as 105°F (41°C) and stillbe effective. However, if the return air grilles are in thedischarge air pattern, the warm air will be returned to theplenum before it heats the room. Again, the airtemperature needs to be blended down to an acceptabletemperature that can be forced down into the occupiedspace by the time the air gets to the walls. Dischargingwarm air into the room at temperatures above 105°F(41°C) usually will set up stratification layers and will notkeep the occupants warm if there is a ceiling returnbecause only the top 12" – 24" (300 – 600 mm) of theroom will be heated.

The maximum approved discharge air temperature forany Nailor Fan Powered VAV Terminal Unit withsupplemental heat is 120°F (49°C). No heater should beapplied to exceed this temperature.

To properly select an electric heater, three things must bedetermined: the heat requirement for the room, theentering air temperature and the desired discharge airtemperature. The heat requirement for the room is thesum of the heat loss calculation and the amount of heatrequired to raise the entering air temperature to thedesired room temperature. Usually, the second item issmall compared to the first for fan powered terminal unitsin a return air plenum. Mbh can be converted to kW byusing the chart or by calculation. There are 3413 Btus in1 kW. If using the chart, find the Mbh on the left scale,then move horizontally to the right and read kW.

Next, the desired discharge air temperature should beascertained. This will depend on the type of diffusers thatare in the room.

The desired heating airflow for the room can then becalculated using the following equation:

cfm = kW x 3160

Δt (discharge air temp – inlet air temp.) °F

Assuming 70°F (21°C) supply air temperature to theheater, the room airflow can be selected directly from thechart. Start at the left at the design kW. Move horizontallyto the desired discharge air temperature. Then, movevertically down to the cfm at the bottom of the chart.

The kW can be selected directly from the chart. Start atthe bottom with the design cfm into the room. Movevertically up to the line that represents the desireddischarge air temperature. Then, move left to the kW.

The discharge air temperature can also be selecteddirectly from the chart. Start at the bottom with the designcfm into the room. Move to the left side of the chart andfind the design kW. Move horizontally and vertically intothe chart until the lines intersect. The intersection will bethe desired discharge air temperature. Interpolationbetween the curves is linear.

0 500 1000 1500 2000 2500 3000 3500 4000

50

45

40

35

30

25

20

15

10

5

0

110°F

105°F

100°F

95°F

90°F

85°F

80°F

Assuming 70°F inlet air temperature at heater.

Diagonal lines are constant output temperature.

115°F170160150140130120110100

908070605040302010

0


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For a description of individual control components; seethe controls overview section of this catalog.

pneumatic air terminal actuators arecontrolled directly by branch line pressure signals from theroom thermostat. They do not compensate for staticpressure changes immediately upstream of the terminal.Consequently, the thermostat is a damper blade positionerrather than a flow regulator.

pneumatic air terminal actuatorsare controlled directly by a flow control device whichbalances velocity pressure readings from a flow sensorlocated at the inlet and branch air pressure from thethermostat. The controller operates within adjustableminimum and maximum flow rates.

The most commonly used thermostat is a which causes an increase in output

pressure as room temperature rises. A Reverse ActingThermostat causes a decrease in output pressure asroom temperature rises. Since the pneumatic actuator isa spring return device, the damper may be connected sothat it returns either to a normally closed position(shutting off primary air) upon loss of main air, or to anormally open position upon loss of main air (allowing acentral system morning warm up sequence).

The standard and recommended is a multi-function device and has a constant

reset span (factory set at 5 psi) regardless of maximumand minimum flow setting for superior temperaturecontrol. The controller is suitable and may be fieldmodified for use with either a direct or reverse actingthermostat and with either a normally open or normallyclosed primary air damper.

With pressure independent controls (unlike pressuredependent), the damper normal position is not related tothe thermostat action.

The selection of direct or reverse acting thermostats aremost commonly dictated by the desire for supplementaryheat to fail "open" or "off" (using a reverse actingthermostat) or to fail "closed" or "on" (using a directacting thermostat). A pneumatic-electric (P.E.) switch isan integral part of the 35NE control sequence. When theprimary air damper approaches its minimum flow position, the P.E. switch is activated to energize the fan.

If supplementary heat is present on 35NE (or 35SEmodels), additional P.E. switches are sequenced toactivate the stages of electric heat. For hot water heat apneumatic hot water valve (by others) is required.

P.E. switches are wired normally closed with a directacting thermostat, so that the fan and optional heat fail inan "on" position. With a reverse acting thermostat, the

P.E. switches are wired normally open to fail in an "off"position.

The analog electronic controls provide pressureindependent control. The components are matched andcalibrated and provide regulated airflow in response tothe electronic room thermostat, which is furnished as apart of the control package. Minimum and maximumairflow settings are adjusted at the thermostat, using adigital voltmeter. It is not necessary to adjust flow settingat the terminal in the ceiling space.The new range of Nailor analog electronic controls utilizethe 'Diamond Flow' multi-point averaging sensor asstandard for accurate flow measurement.

The electronic thermostat has a fixed 2°F proportionalband regardless of minimum or maximum velocity setpoints and provides a linear reset function. Thermostathas a built-in thermometer and set point indicator. Theelectronic controller/actuator features an on-board flowtransducer.

Electric actuators are not spring return devices (there isno normally open or normally closed action). If there is aloss of power to the terminal, the damper will remain inthe position it was in at the time of power failure. Allelectric components use low voltage (24 volt) controls. Astep down transformer is provided as standard.

are genericin nature and compatible with all DDC controls currentlyavailable.

can supply and mount its own 'Diamond Flow'multi-point averaging flow sensor.

Controls may be factory mounted and wired by orfield installed by the controls contractor.

A 24 volt Class 2 control transformer and fan relay areprovided by Nailor as standard on all fan poweredterminals intended for use with digital controls.


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1. The series terminal fan is directly or indirectlyinterlocked and energized before or when the centralsystem starts up.Nailor recommends that the terminal fan is indirectlyinterlocked by means of an airflow switch (optional) whichsenses primary air pressure at the inlet. Upon central systemstart up, the fan in the terminal is automatically energized.2. On a rise in room temperature, the thermostat sendsa signal to increase the flow of cold primary air.3. As more cold air is supplied to the fan section, lesswarm air is induced from the ceiling space or plenum.4. When the room temperature exceeds the set point by2°F or more, cold airflow is maintained at the maximumsetting. The maximum setting is the same as the total fanvolume setting.5. On a decrease in room temperature, the thermostatsends a signal to decrease the flow of cold primary air.6. As less cold air is supplied to the fan section, morewarm air is induced from the ceiling space.7. When the room temperature and thermostat outputsignal reach the thermostat set point, the cold airflow isat its minimum limit (usually zero) and the fan issupplying the maximum volume of induced air.8. If room temperature continues to drop, an optionalheating coil may be energized.9. When the optional airflow switch is supplied and thecentral system is turned off (night-time or weekend), theseries terminal fan is shut down upon loss of primary air.

1. Night Shutdown (Airflow Switch). Accessory code: QK.An airflow switch de-energizes fan upon loss of primary(central) air (indirect fan interlock). The terminal fan willremain off until the primary air is restored.2. Night Shutdown (P.E. Switch). Accessory code: QL.A pneumatic electric switch de-energizes the fan uponloss of main air. Primary air fan must be shut down. Theterminal fan will remain off until the main air is restored.Units with electric heat require reverse acting thermostatsto prevent heat operation when terminal fan is off.3. Night Setback (P.E. and Airflow Switch). Acc. code: QM.Airflow switch de-energizes fan upon loss of primary(central) air. A P.E. switch overrides the airflow switchupon a call for heating and will cycle the unit fan followedby the supplementary heat intermittently in response tothe night setback thermostat.4. Night Setback (Two P.E.'s). Accessory code: QN.A P.E. switch de-energizes fan upon loss of main air.Primary air fan must be shut down. A second P.E. switchprovides an override upon a call for heating and will cyclethe unit fan and supplementary heat in response to aseparate pneumatic signal or night setback thermostat.

D.A. NO Yes 1P3R.A. NO Yes 2P3D.A. NC Yes 3P3R.A. NC Yes 4P3

TOTAL AIR MAXIMUM

MINIMUM

COLD HOT

PRIM

ARY

AIR


SETPOINT

CFM

INC

REAS

E

RECIRCULATED AIR

HEATING COILTEMPERATURE

MIXINGCOOLING

+ 2°F(+1.1°C)

SETPOINT


CFM

INC

REAS

E

RECIRCULATED AIR


NOPRIMARY AIR


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Cooling (continuous operation) A1Cooling w/morning warm-up (continuous operation) A2Cooling w/staged electric, auxiliary or on-off hot water heat (continuous operation) A3Cooling w/proportional heat (continuous operation) A4Cooling w/night cycle A5Cooling w/morning warm-up and night cycle A6Cooling w/staged electric, auxiliary or on-off hot water heat and night cycle A7Cooling w/proportional heat and night cycle A8Cooling w/auto night shutdown B1Cooling w/morning warm-up and auto night shutdown B2Cooling w/staged electric, auxiliary or on-off hot water heat and auto night shutdown B3Cooling w/proportional heat and auto night shutdown B4 Cooling w/auto night setback cycle B5Cooling w/morning warm-up and auto night setback cycle B6Cooling w/staged electric, auxiliary or on-off hot water heat and auto night setback cycle B7Cooling w/proportional heat and auto night setback cycle B8Cooling w/staged electric, auxiliary or on-off hot water heat, auto night setback cycle and morning warm-up B9Cooling w/proportional heat, auto night setback cycle and morning warm-up B10Cooling w/staged electric, auxiliary or on-off hot water heat and morning warm-up (continuous operation) B23Cooling w/proportional heat and morning warm-up (continuous operation) B24Cooling w/staged electric, auxiliary or on-off hot water heat, auto night shutdown and morning warm-up B25Cooling w/proportional heat, auto night shutdown and morning warm-up B26Cooling w/auto changeover (continuous operation) B13Cooling w/staged electric, auxiliary or on-off hot water heat and auto changeover (continuous operation) B17Cooling w/proportional heat and auto changeover (continuous operation) B18Cooling w/auto changeover and auto night shutdown B15Cooling w/staged electric, auxiliary or on-off hot water heat, auto changeover and auto night shutdown B16Cooling w/proportional heat, auto central heating changeover and auto night shutdown B22

A duct stat is mounted in the terminal inlet. Upon sensing acentral system supply air temperature above 77°F (25°C),the primary air damper drives to a full open position.Optional terminal supplementary heat is locked out. Uponsensing cool air, the terminal reverts to daytime operation.

Control relay provides a 24 VAC output signal foroperation of valve (10 VA maximum by others).

Thermostat heating output provides an 0 – 10 Vdcreverse acting control signal to proportional valve (byothers). Closed at 0 Vdc and fully open at 10 Vdc (10 mAmaximum).

An airflow switch de-energizes fan upon loss of primary(central system) air. Upon a call for heat, the thermostatwill override the airflow switch and cycle the unit fanfollowed by any supplementary heat intermittently tomaintain day set point temperature.

An airflow switch de-energizes fan upon loss of primary

(central system) air and locks out any optionalsupplementary heat.

An airflow switch de-energizes fan upon loss of primary(central system) air and activates the night side of thethermostat. Primary air damper cycles closed. Upon acall for heat, the thermostat will override the airflowswitch and cycle the unit fan and optional supplementaryheat intermittently to maintain a lower energy savingsetback temperature.

(Central Heat/Cool Systems)

These sequences incorporate a duct stat and heat/coolthermostat. Upon sensing a central system supply airtemperature above 77°F (25°C), the heating side of thethermostat is activated and the damper throttling action isreversed. Warm central air is modulated betweenminimum and maximum set points.

Night setback, night shutdown and primary damperoverrides may be initiated by external 24 VAC inputsand/or dry contact closures. Consult your Nailor representative for non-standardcontrol sequences.


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The actuator and fan respond directly to a signal from theroom thermostat.

P.E. switches are furnished to sequentially activate fanand optional hot water heat upon demand (electric heatis not available with pressure dependent controls).

1. Upon start-up of the central system, cold air isdelivered to the space through the primary air section atthe flow rate dictated by the thermostat. The resetcontroller compensates for any variation in inlet staticpressure. The fan remains off. A backdraft damper at thefan outlet prevents cold air from flowing back through thefan into the ceiling space.

2. On a rise in room temperature, the thermostat sendsa signal to increase the flow of primary air.

3. When the room temperature exceeds set point by 2°For more, cold airflow is maintained at the maximum setting.

4. On a decrease in room temperature, the thermostatsends a signal for less cooling to the flow controller andcold airflow begins to decrease.

5. When the room temperature is at or below thethermostat set point, cold airflow is at its minimum limit.

6. If room temperature continues to drop, the fan sectionis energized to supply warm ceiling plenum air.

7. If room temperature drops further still, an optionalsupplementary heating coil may be energized.

8. When the central system is turned off (night-time orweekend operation), the fan and optional heat can beenergized by the room thermostat on an intermittentbasis on a call for heating.

1. Night SetbackThe space temperature may be reset to a lower settingthrough a change in main air pressure. The fan and optionalheat will be energized through the P.E. switch furnishedwith the unit while the central system remains off.

2. A normally open damper configuration may be utilizedfor a central morning warm-up sequence by removingmain air to the terminal.


SETPOINT

CFM

INC

REAS

E

RECIRCULATED AIR


PRIM

ARY

AIR


SETPOINT

CFM

INC

REAS

E

RECIRCULATED AIR


PRIM

ARY

AIR

MAXIMUM

COOLING

+ 2 °F(+ 1.1°C)

MINIMUM


SETPOINT

CFM

INC

REAS

E

RECIRCULATED AIR

NOPRIMARY AIRHEATING COIL

TEMPERATURE


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** A normally closed (N.C.) P.E. switch fails on. A normally open (N.O.) P.E. switch fails off.Hot water coil valves (by others) should be selected to modulate through the desired heating range in sequence with the cooling range.

� D.A. N.C. 15 – 10 psi 12 – 10/N.C. 10 - 8 9 - 7 8 - 6 D1

� R.A. N.O. 5 – 10 psi 9 – 11/N.O. 11 - 13 12 - 14 13 - 15 D2

� D.A. N.O. 13 – 8 psi 10 – 8/N.C. 8 - 5 7 - 4 6 - 3 1P3

� R.A. N.O. 3 – 8 psi 6 – 8/N.O. 8 - 11 9 - 12 10 - 13 2P3

� D.A. N.C. 13 – 8 psi 10 – 8/N.C. 8 - 5 7 - 4 6 - 3 3P3

� R.A. N.C. 3 – 8 psi 6 – 8/N.O. 8 - 11 9 - 12 10 - 13 4P3

Cooling w/night cycle A1Cooling w/morning warm-up and night cycle A2Cooling w/staged electric, auxiliary or on-off hot water heat and night cycle A3Cooling w/proportional heat and night cycle A4Cooling w/auto night shutdown B1Cooling w/morning warm-up and auto night shutdown B2Cooling w/staged electric, auxiliary or on-off hot water heat and auto night shutdown B3Cooling w/proportional heat and auto night shutdown B4 Cooling w/auto night setback cycle B5Cooling w/morning warm-up and auto night setback cycle B6Cooling w/staged electric, auxiliary or on-off hot water heat and auto night setback cycle B7Cooling w/proportional heat and auto night setback cycle B8Cooling w/staged electric, auxiliary or on-off hot water heat, auto night setback cycle and morning warm-up B9Cooling w/proportional heat, auto night setback cycle and morning warm-up B10Cooling w/staged electric, auxiliary or on-off hot water heat and morning warm-up B23Cooling w/proportional heat, morning warm-up and night cycle B24Cooling w/staged electric, auxiliary or on-off hot water heat, auto night shutdown and morning warm-up B25Cooling w/proportional heat and morning warm-up B26Cooling w/auto changeover B13Cooling w/staged electric, auxiliary or on-off hot water heat and auto changeover B17Cooling w/proportional heat and auto changeover B18Cooling w/auto changeover and auto night shutdown B15Cooling w/staged electric, auxiliary or on-off hot water heat, auto changeover and auto night shutdown B16Cooling w/proportional heat, changeover and auto night shutdown B22

A duct stat is mounted in the terminal inlet. Upon sensing a centralsystem supply air temperature above 77°F (25°C), the primary airdamper drives to a full open position. Fan and optional supplementaryheat are locked out. Upon sensing cool air, the terminal reverts todaytime operation.

Upon a call for heat, the thermostat will cycle the unit-fan followed by anysupplementary heat intermittently to maintain day set point temperature.

An airflow switch senses central system shutdown upon loss of primaryair and activates the night side of the thermostat. Primary air dampercycles closed. Upon a call for heat, the thermostat will cycle the unit fan

and optional supplementary heat intermittently to maintain a lowerenergy saving setback temperature.

(Central Heat/Cool Systems)These sequences incorporate a duct stat and heat/cool thermostat.Upon sensing a central system supply air temperature above 77°F(25°C), the heating side of the thermostat is activated and the damperthrottling action is reversed. Warm central air is modulated betweenminimum and maximum set points. Terminal fan and optionalsupplementary heat are locked out.

Night setback, night shutdown and primary damper overrides may beinitiated by external 24 VAC inputs and/or dry contact closures.Consult your Nailor representative for non-standard control sequences.

general product overview - nailor · 4johmf 4qffe 14$ *oevdujpo .pupst all nailor fan powered...

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