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High-performance, single-packagerooftop heat pump products with thfollowing industry-leading premiumfeatures:• Chronotemp™ defrost controls

• Cooling EER up to 9.8• Serviceable semi-hermeticcompressors

• Service valves and full refrigeratsystem safeties

• High-static oversized fan motors(standard)

• Variable-pitch belt drive fan moto(standard)

• Standard low-medium ESP oralternate high ESP indoor fandrives

• Service option including hingedaccess panels, convenience outl

and unit mounted disconnect• TEMP system compatible Apollo

electronic controls (optional)• Glycol coil (optional)

Features/BenefitIndustry-leading cooling EER

T h e 5 0 H J Q 0 1 4 (1 3 to n s) u n it p ro -vide s lead in g A R I (A ir C o n ditio n -in g an d R efrig eratio n In stitu te) ce rtifc o o lin g E E R (E n e rg y E f c ie n c y R a tio f 9 .8 . T h e 5 0 H JQ 0 1 6 (1 5 to n s)un it p rovides A R Icerti ed coo ling E

of 9 .3 . T h ese excep tion ally high rain gs assure m inim um o p eratin g cosan d w ill q u alify fo r attractive u tilityrebates in m an y areas.

Semi-hermetic compressors

T h e 5 0 H J Q u n it u se s th e C a rly le 0sem i-h erm etic com p resso rs. T h eseservicea ble co m p ressors are h igh lyregarded, p referred by ow ners andusers, an d are o ffered exclusively o nthe C arrier high -ef cien cy H JQ un i

ProductData

50HJQ014,016Single-Package Rooftop

Heat Pump Units

13 and 15 Nominal Tons

Copyright 1998 Carrier Corporation Form 50HJQ-4

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T w o 0 6 D se m i-h e rm e tic c o m p re s-sors o n in dep en den t refrigeratio ncircuits are o ffered o n th ese5 0 H J Q 0 1 6 u n its fo r 2 ste p s o f c ap a c -ity con trol an d redun dan cy. A sing le0 6 D sem i-he rm etic com p ressor w ithun lo ad in g cap ab ility is o ffered o nth e 5 0 H J Q 0 1 4 . A ll c o m p re sso rs h a veservice valves an d a fullco m p lem en to f safety devices, in clud in g h igh -an d lo w -p ressure sw itch es, o ver-tem p erature p ro tectio n , lo w -tem p erature p ro tectio n , an electro n iccoo ling locko ut device, an d cran k-case h eaters.

High static oversized fanmotors and variable-pitchbelt drives

T h e 5 0 H J Q u n its h a v e o v e rsize devap o rato r-fan m o to rs an d variable-p itch be lt drives sup p lied at th e facto ryto p ro v id e o v e r 1 .7 in . w g o f e x te r-

nal static p ressure at 4 0 0 cfm p er tonw ith w et co ils an d clea n lters in -stalled . T h is in creases to 2 .0 in . w gw ith eld-sup p lied p ulleys. A 5 h pm otor is provided stand ard on5 0 H J Q 0 1 6 u n its.

A stan da rd (lo w -m edium static) an daltern ate (h ig h static) d rive is ava il-a b le fo r th e 5 0 H J Q 0 1 4 ,0 1 6 u n its.

Easy installation

T h e 5 0 H J Q ro o fto p h e a t p u m p u n itsare p erfect fo r vertical sup p ly an dreturn roo f curb m o un t ap p licatio ns

on n ew con struction , retro t, an drep lacem en t ap p licatio ns. T he un iquein du stry-lead in g co m p act size an dw eigh t are favored by design ers, con -tracto rs, o w n ers, an d users.

T h e c o m p a c t p h y sic a l size a n dw eigh t are no t on ly advantages interm s o f m in im izin g req uired ro o fstructures on n ew con structio n an dretro t job s, but also m ake the 5 0 H JQthe perfect rep lacem ent un it for anyo f the origina lC arrier 5 0 D P,D R (coo l-in g o n ly ) o r 5 0 P Q (h e a t p u m p ) u n itsin stalled in th e late 1 9 7 0 s an d early1 9 8 0 s to m e e t th e u p g ra d e d jo bre q u ire m e n ts o f th e 1 9 9 0 s.

T h e n e w 5 0 H J Q u n its c an b e e a silycon verted to ho rizon tal sup p ly an dretu rn w ith C arrier’s n ew fan -p erfo rm an ce-bo o stin g, h o rizon tal,h ig h -static reg ain ad ap ter (p artno . 5 0 D P 9 0 0 2 1 1 ). T his vertical-to-h o rizon tal sup p ly/return ad ap teris n o t o n ly fully facto ry assem bled w itha b u ilt-in in sulated tran sitio n d u ct, itim p ro v e s fa n p e r fo r m a n c e b y a s m u c has 0 .6 in. w g of static.

N O T E : O n u n its u sin g h o rizo n ta l su p -p ly an d return, th e accessory baro-m etric relief or p ow er exhau st m ustbe in stalled o n th e return du ctw o rk.

Efficient operation,dependable performance

B uilt w ith energy ef ciency in m ind ,th e 5 0 H JQ coo ling coils feature stag-g e re d c o p p e r tu b e s a n d m e ch a n i-cally b on ded alum inu m ns to p rovideto p e f c ie n c y .

D ual co m p resso r un its h ave electri-cally an d m ech an ically in de p en de n t

refrig eran t circu its. C o n seq ue n tly, if ap rob lem develop s w ith com p ressorn o . 1 , th e u n it c o u ld o p e ra te o n c o m -p re sso r n o . 2 .

A m a n u a l o u td o o r-a ir d a m p e r c anb e p re se t to a d m it u p to 2 5 % o u td o o rair fo r yea r-ro un d ven tilatio n . U n itse q u ip p e d w ith e c o n o m ize r h a v e ath erm o statically co n tro lled , fu lly m o du -lating dam p er w h ich adm its up to1 0 0 % o u td o o r a ir a n d p ro v id e s lo w -cost coo lin g. T em p erature con tro lgo verns econ om izer coo ling chan ge-over to provide low est cost op era-tio n in m ild w ea th er.

S p ecialcheck valves and xed ori- ce refrige ran t m eterin g p ro videim p roved heat transfer for the bestp erform an ce p ossible during bo thheating and coo ling m od es.

T he p atented C hron otem p defrostsystem uses tim e an d tem p erature tokee p th e o utdo o r co il fro st-free fo recon o m ical,d ep en dab le coo lin g op era-tio n a t te m p e ra tu re s d o w n to 4 0 Fas ship p ed from the factory.A ccessory

low -am bien t kit p erm its un it op era-tion in coo ling at ou tdo or am bientte m p e ra tu re s d o w n to − 2 0 F .

C o n den ser fan s a re direct driven,facto ry-lu bricated, an d p o sitio n ed fo rqu iet, ef cien t vertical discha rge .

T he 5 0 H JQ un it’s h igh techn o log ydesign features a com p uter-p rog ram m ebalance betw een com p ressor, ou tdo orsectio n, an d in do or section .C a rrier sp eci ed sem i-he rm etic com -p resso rs are equ ip p ed w ith cran k-ca se h ea ters, calib rated circu it b rea ke rsfo r o vercurren t p ro tectio n , an d

C ycle-L O C com p resso r p ro tection .

UNIQUE SLIDE-OUT MOTOR MOUNT(5 0 H JQ 0 1 6 O n ly )

TYPICAL SERVICEABLE, SEMI-HERMETIC0 6 D CO MP RESSO R

2

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Features/benefits (cont)

If an y safety de vice trip s, C ycle-L O C com p resso r p ro-tectio n p reven ts sh o rt cyclin g by shuttin g o ff th e com -p ressor un tilth e C ycle-L O C p rotection m echa nism isreset. C o m p ressor restart is accom p lishe d at th e sp aceth erm o stat.

T h e cran kcase h eater p reven ts refrige ran t dilutio n o f o ildu rin g o ff cycles — en surin g p ro p er lub ricatio n at start-upan d p rolon ging com p ressor life.

E lectric he at an d an integrated econ om izer areacce sso ries/o p tio n s o n all un its.

T h e w eath er resistan t cabin et is de sign ed fo r du rabilityun der allclim atic con dition s. T he un it cabin et is m adeo f ga lvan ized steel an d is p rep ain ted fo r lo n g life an dgo od loo ks.

Service option package

S erving a roo ftop un it has never been easier w ith then ew facto ry-in stalled S ervice O p tio n P ackag e fo r th e5 0 H JQ 0 1 4 ,0 1 6 roo ftop un its. T his p ackage includes thefo llo w in g fea tu res:•H ing ed access p an els are p rovided for the lter/ind oo r-

fan m otor, com p ressors, ind oo r fan, and con trol bo x

a re a s. Q u ic k a c ce ss to m a jo r c o m p o n e n ts is a c co m -p lish ed by sim p ly un latchin g an d sw ing ing o p en thevariou s p anels. E ach hing ed p anel is p erm anen tlym o un ted to th e un it, th ereb y elim in atin g th e co n cernof a drop p ed or w ind -blow n p anel p un cturing deli-cate ro of m aterials. T he 4 extern al access p an els arealso eq u ip p ed w ith ‘‘tie b ack ’’retain in g d evice s to h o lth e do o r in th e o p en p o sitio n w h ile servicin g th e un it.

• A n external, covered, 1 1 5 -v G rou nd Fau lt Interrup t(G FI) recep table is p rovided as a con venien t p ow ersou rce fo r drills,ligh ts,refrige ran t reco very un its o r o thelectrical service to o ls. S im p ly co n n ect th e o utlet to a eld-sup p lied an d p ro p erly fused branch circuit p o w ersup p ly.

•A n in teg ral n o n -fused disco n n ect sw itch w ith in th ero o fto p un it redu ces in stallatio n tim e, lab o r an d m ate-rial co sts. S afety is assured by an in terlo ck w h ichp reven ts access to the con trol bo x un less the sw itch isin th e O F F p o sitio n . In ad ditio n , th e ex tern allym ou nted ha nd le inco rp o rates p ow er locko ut cap abilityto furth er p ro tect service p erso n n el.

Model number nomenclature

Table of contents P a g eFeatures/B ene ts ................................................. 1 -3M o d e l N u m b e r N o m e n c la tu re . . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . 3

A R I C ap acities ..................................................... 4P hysicalD ata ..................................................... 4 ,5O p tion s an d A ccessories ........................................... 6 -8B a se U n it D im e n sio n s . . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . . .. . . . . .. . . 9A ccessory D im ension s ........................................... 1 0 -1 2S election P rocedure ............................................... 1 3P e rfo r m a n c e D a ta . . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . 1 4 -2 0E lectricalD ata ...... ...... ...... ...... ...... ...... ...... ...... .... 2 1T ypicalP ip ing and W iring .......................................... 2 2T ypicalW iring S chem atic ......................................... 2 3 -2 6C on trols ........................................................ 2 7 -3 1A p p lication D ata .................................................. 3 2G u id e S p e c i c a tio n s . . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . 3 3 -3 5

LEGENDAl — AluminumCu — Copper*Refer to 50HJQ price pages for 50HJQ factory-installed option table or contact your local Carrier representative.

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ARI* capacities

UNIT50HJQ

COOLING HEATING-HIGH TEMP HEATING-LOW TEMP

TotalkW

NetCapacity

(Btuh)Cfm IPLV EER

TotalCapacity

(Btuh)

TotalkW

COPTotal

Capacity(Btuh)

TotalkW

COP

014 14.3 140,000 4500 12.4 9.8 136,000 12.4 3.2 72,000 10.0 2.1

016 18.5 172,000 5200 9.7 9.3 172,000 15.3 3.3 90,000 12.5 2.2

LEGEND

COP — Coefficient of Performancedb — Dry BulbEER — Energy Efficiency RatioESP — External Static PressureIPLV — Integrated Part-Load ValuekW — Kilowattswb — Wet Bulb

*Air Conditioning and Refrigeration Institute.

50HJQ units are rated in accordance with ARI Standard 340.

Cooling ratings are net values, reflecting the effects of circulating fan

heat. Ratings are based on:ESP: −.35 in. wg

Cooling Standard: 80 F db, 67 F wb indoor coil entering-air tempera-ture and 95 F outdoor coil entering-air temperature.

High-Temp Heating Standard: 70 F db indoor coil entering-air tem-perature and 47 F db, 43 F wb outdoor coil entering-air temperature.

Low-Temp Heating Standard: 70 F db indoor coil entering-air tempera-ture and 17 F db, 15 F wb outdoor coil entering-air temperature.

IPLV Standard: 80 F db, 67 F wb indoor entering-air temperature and80 F db outdoor entering-air temperature.

Physical data

WEIGHT DISTRIBUTION AND CENTER OF GRAVITY

UNIT50HJQ

WEIGHT WEIGHT OF CORNER DIMENSIONS

Lb Kg A B C D X Y Z

Lb Kg Lb Kg Lb Kg Lb Kg ft-in. mm ft-in. mm ft-in. mm

014 1615 733 366 166 356 161 360 163 534 242 3-1 947 3-2 965 1-10 559

016 1925 874 464 211 496 225 477 217 487 221 3-6 1059 3-8 1105 1-10 559

4

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Physical data (cont)

UNIT SIZE 50HJQ 014

016203/230 V, 460 V 575 V

OPERATING WT (lb)Al/Al* 1615 1925Al/Al Coated

Unit Al/Cu* 1745 2075Cu/Cu* 1815 2165

Electric Heat 65 65Economizer 110 110Roof Curb† 200 200

COMPRESSOR Semi-HermeticModel Number (Quantity) 06D-328 (1) 06D-818 (2)Cylinders 6 4Capacity Staging (%) 0,66,100 0,50,100Oil Change (oz) 115 88 (each)

REFRIGERANT TYPE R-22Charge (lb)

System 1 26.0 16.5System 2 26.0 16.5

OUTDOOR COIL 3 ⁄ 8 in. Enhanced Copper Tubes, Aluminum Lanced or Copper Plate FinsRows 3 3Fins/in. 15 15Total Face Area (sq ft) 21.7 21.7

OUTDOOR FAN Propeller Type, Direct DriveNominal Cfm 9,000 9,000Number...Diameter (in.) 3...22 3...22Motor Hp (1075 Rpm) 1 ⁄ 2 1 ⁄ 2Watts Input (Total) 1090 1090

INDOOR COIL 3 ⁄ 8-in. Enhanced Copper Tubes, Aluminum Double Wavy or Copper Plate Fins, Face SplitRows 3 3Fins/in. 15 15Total Face Area (sq ft) 17.5 17.5

INDOOR FAN Centrifugal, Adjustable Pitch Belt DriveQuantity...Size (in.) 2...10 x 10 2...10 x 10 2...12 x 12Nominal Cfm 5000 5000 6000Fan Rpm Range STD 891-1179 1159-1429 817-1038

ALT 1227-1559 — 1082-1303Motor Nominal Rpm 1725 1550 1745Maximum Allowable Rpm 1550 — 1550Motor Pulley Pitch Diameter (in.) STD 3.1-4.1 4.3-5.3 3.7-4.7

ALT 3.7-4.7 — 49.-5.9Fan Pulley Pitch Diameter (in.) STD 6.0 6.4 7.9

ALT 5.2 — 7.9Belt, Quantity...Type...Length (in.) STD 1...BX...42 1...BX...45 1...BX...46

ALT 1...BX...42 — 1...BX...50Pulley Center Line Distance (in.) 13.5-15.5 13.5-15.5 13.3-14.8

Factory Setting 3.5 3.5 3.5Factory Speed Setting STD 1035 1296 934ALT 1389 — 1199

Motor Hp (Service Factor) 3.7 (1.15) 3.0 (1.15) 5 (1.15)Motor Frame Size 56H 56H 184TMotor Efficiency 0.86 0.82 0.875

HIGH-PRESSURE SWITCHCutout (psig) 426Reset (psig) 320

LOW-PRESSURE/LOSS-OF-CHARGE SWITCHCutout (psig) 7Reset (psig) 22

FREEZE PROTECTION THERMOSTAT (F)Opens 30 ± 5Closes 45 ± 5

AIR INLET SCREENS Cleanable

Economizer, Quantity...Size (in.) 2...20 x 25 x 1

1...20 x 20 x 1

RETURN-AIR FILTERS (Type) 10% Efficient — 2-in. Throwaway Fiberglass

Quantity...Size (in.) 4...20 x 20 x 2

4..16 x 20 x 2

POWER EXHAUST 1 ⁄ 2 Hp 208/230 or 460 V Motor, Direct Drive Propeller Fan (Factory Wired for 460 V)

LEGEND

Al — AluminumCu — Copper

*Indoor coil fin material/outdoor coil fin material.†Weight of 14 in. roof curb.

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Options and accessories

ITEM OPTION* ACCESSORY†

Apollo Communicating Controls X

Service Option Package X

Electric Heat X X

Alternate Drive X

Integrated Economizer with Hood X X

Enthalpy Sensor X

Differential Enthalpy Sensor Kit X

Emergency Heat Package X

Barometric Relief Damper** X

Two-Position Damper X

Roof Curb (Horizontal and Vertical) X

Horizontal Adapter X

Thermostat and Subbase X

Electronic ProgrammableThermostat

X

Power Exhaust** X

Motormaster Head Pressure Control X

25 F Low-Ambient Kit†† X

−20 F Low-Ambient Kit†† X

Time Guard II Control (Circuit 2) X

Glycol Coil X

*Factory Installed.†Field Installed.

**Not available with the horizontal adapter.

††Consists of a combination of accessories. Refer to Price Pages formore details or contact your local Carrier representative.

HEAD PRESSURE CONTROL

The 50HJQ standard units are designed to operate at outdoortemperatures down to 40 F. With accessory Motormaster control(outdoor-fan speed modulation), units can operate at lower out-door temperatures. The head pressure controls, which mount inthe outdoor-air section, modulate the outdoor-fan motor to main-tain correct condensing temperature. Refer to unit price pagesfor complete information on low outdoor-ambient operation ac-cessories or contact your local Carrier representative.

TIME GUARD II CONTROL

Time Guard II Control automatically prevents compressor fromrestarting for at least 5 minutes after a shutdown. Accessory pre-vents short cycling of compressor if thermostat is rapidly changed.Accessory Time Guard II device mounts in the control compart-ment of unit to provide control on circuit 2. Time Guard II controlis standard on compressor no. 1.

GLYCOL COIL

Glycol coil is intended for add-on type applications or new installationswhere a boiler system is available. Glycol coil and electric heat cannotbe installed together.

NOTE: Dimensions in ( ) are in millimeters.

ELECTRONIC PROGRAMMABLE THERMOSTAT

Electronic programmable thermostat provides efficient temperature control byallowing you to program heating and cooling setbacks and setups with pro-visions for weekends and holidays. Accessory remote sensing package isalso available to provide tamperproof control in high-traffic areas. Used inconjunction with factory-installed Apollo communicating control, this thermo-stat provides a 5-minute recycle timer between modes of operation for short-cycle protection.

The 50HJQ units have 2 independent control circuits, each with a differenttransformer. Due to this advanced design, a thermostat with the capability tohandle heating (RH terminal) and cooling (RC terminal) separately is requiredfor proper unit operation. If a jumper is provided on the thermostat betweenthe RH and RC terminals, it MUST be removed prior to unit start-up.

6

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OPTIONAL FACTORY-INSTALLEDAPOLLO COMMUNICATING CONTROLS

The Apollo direct digital controls are designed exclusively by Carrier,and are used to actively monitor all modes of operation as well asindoor-fan status, filter status, supply-air temperature, outdoor-air tem-perature, and indoor-air quality. They are designed to work in conjunction with Carrier TEMP and VVT system thermostats.

ELECTRIC HEATER

Electric heaters are available in a wide range of capacities for fac-tory or field installation.

POWER EXHAUST

When used with accessory/optional economizer, the power exhaustaccessory helps to relieve building over-pressurization.

NOTE: Power exhaust and barometric relief accessories cannot beused with factory pre-assembled, high static, horizontal adapter.

INTEGRATED ECONOMIZER

Units equipped with economizer have a thermostatically controlled,fully modulating damper which admits up to 100% outdoor air andprovides low-cost cooling. Temperature control governs economizercooling changeover to provide lowest cost operation in mild weather(down to 55 F).

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Options and accessories (cont)

SERVICE OPTION PACKAGEUNIT MOUNTED DISCONNECT, HINGED ACCESS PANEL (CONTROL BOX SHOWN)

Factory-installed, internally-mounted, NEC (National Electrical Code)and UL (Underwriters’ Laboratories) approved non-fused switch pro-vides unit power shutoff with disconnect lockout protection capabil-ity. The control box access door is interlocked with the non-fuseddisconnect. The non-fused disconnect must be in the OFF positionto open this door. The switch is accessible from outside the unit.

Factory-installed, internally mounted andexternally accessible 115-v female re-ceptacle. Includes 15-amp GFI (Ground

Fault Interrupter) receptacle with inde-pendent fuse protection. Voltage requiredto operate convenience outlet is providedby a field-installed transformer.

CONVENIENCE OUTLET

8

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Base unit dimensions

UNIT50HJQ

MAXIMUM SHIPPING WEIGHT*

Lb Kg

014 1895 860

016 2205 1000*Units withaluminum indoor and outdoor coilfins.

UNIT50HJQ

DIMENSIONS

X Y

Ft-in. mm Ft-in. mm014 3-1 947 3-2 965

016 3-6 1059 3-8 1105

LEGEND

KO — Knockout

NOTES:1. Dimensions in ( ) are in millimeters.

2. Ce nter o f g ra vity.

3. Di re ctio n o f a irflow.

4. Ductwork to be attached to accessory roof curb only.5. Minimum clearance:

a. Rear: 7-0 (2134) for coil removal. This dimension can be re-duced to 4-0 (1219) if conditions permit coil removal from thetop.

b. Left side: 4-0 (1219) for proper outdoor coil airflow.c. Front: 4-0 (1219) for control box access.

d. Right side: 4-0 (1219) for proper operation of damper andpower exhaust (if so equipped).

e. Top: 6-0 (1829) to assure proper outdoor fan operation.f. Local codes or jurisdiction may prevail.

6. With theexception of clearancefor theoutdoorcoiland thedamperand power exhaust as stated in note no. 5, a removable fence orbarricade requires no clearance.

7. Dimensions are from outside of corner post. Allow 0-5 ⁄ 16 (8) oneach side for top cover drip edge.

UNIT50HJQ

WEIGHT OF CORNER*

A B C D

Lb Kg Lb Kg Lb Kg Lb Kg

014 366 166 356 161 360 163 534 242

016 464 211 496 225 477 217 487 221

*Weights are for unit only and do not include options or crating.

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Accessory dimensions

PACKAGENO. REF.

CURBHEIGHT

DESCRIPTION

50PQ900221 1-2

(305)Standard Curb —

14 High

50PQ900141

2-0

(610)

Standard Curb

for Units RequiringHigh Installation

50PQ900151 2-0

(610)

Side Supply andReturn Curb forHigh Installation

NOTES:1. Roof curb accessory is shipped disassembled.2. Insulated panels: 1 thick neoprene coated 11 ⁄ 2 lb

density.3. Dimensions in ( ) are in millimeters.

4. Direction of airflow.

5. Roof curb: 16 gage (VA03-56) steel.

UNIT LEVELING TOLERANCES**From edge of unit to horizontal.

DIMENSIONS (degrees and inches)

UNIT A B

Deg. in. Deg. in.

50HJQ .28 .45 .28 .43

NOTE: To prevent the hazard of stagnantwaterbuild-upin thedrain panof theindoor-air section, unit can only be pitched asshown.

1 0

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HORIZONTAL ADAPTER INSTALLATION

NOTE: 50DP900211 is a fully factory pre-assembled horizontal adapterwhich includes an insulated high static regain transition duct and sub-stantially improves fan static performance. Power exhaust and baro-metric relief accessories cannot be used with factory pre-assembled,high static, horizontal adapter.

ACCESSORYPACKAGE NO.

CURBHEIGHT

DESCRIPTION

50DP900211 1-11

(584 mm)

Pre-AssembledHigh Static

Horizontal Adapter

CONVENIENCE O UTLET

K.O. — Knockout

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Accessory dimensions (cont)

NON-FUSED DISCONNECT

CONTROL BOXSECTION DOOR

COMPRESSORSECTION DOOR

DISCONNECTHANDLE

2'-5 1/4"(743)

1'-1 11/16" (347)

TOP

FRONT VIEW

POWER EXHAUST

2'-1 5/8"

2'-2 1/16"1'-6 5/16"

1 2

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Selection procedure (with 50HJQ016 example)

I Determine heating and cooling requirements atdesign conditions.

G iven :

R e q u ire d C o o lin g C a p a c ity (T C ) . . . . . 1 6 4 ,0 0 0 B tu hS e n sib le H e a t C a p a c ity (S H C ) . . . . . . 1 2 0 ,0 0 0 B tu hR e q u ire d H e a tin g C a p a c ity . . . . . .. . . 1 7 0 ,0 0 0 B tu hO utdo or-A ir Tem p erature (C oo ling ) .......... 9 5 FIn do or E ntering -A ir Te m p erature

(C o o lin g ) . . .. . .. . .. . .. . .. . 8 0 F E d b / 6 7 F E w bO utdo or C o ilE ntering -A ir T em p erature

(H eating ) ............................... 0 ° FIn d o o r W in te r D e sig n T e m p e ra tu re . . . . . .. . . . 7 0 FInd oo r-A ir Q uan tity ................... 6 0 0 0 C fmE xternal S tatic P ressure (E S P ) ......... 1 .4 5 in. w gE lectrical C h aracteristics (V -P h -H z). .. .. .. 2 3 0 -3 -6 0E c o n o m ize r is sp e c i e d .Edb — E n terin g dry bu lbEwb — E ntering w et bulb

II Select unit based on required cooling capacity.

E n te r C o o lin g C a p a c ity ta b le o n p a g e 1 4 a t o u td o o r-air en tering tem p erature o f 9 5 F, in do o r air en terin g

a t 6 0 0 0 cfm a nd 6 7 F e w b. T h e 5 0 H JQ 0 1 6 w ill p ro -vide a totalcap acity (T C ) of 1 8 0 ,8 0 0 B tuh , a sen sibleh e a t c a p a c ity (S H C ) o f 1 3 6 ,4 0 0 B tu h a n d a to ta l u n itkW o f 1 5 .8 8 .

Fo r ind oo r-air tem p erature other than 8 0 F edb, cal-culate sen sible h ea t ca p acity co rrectio n , a s req uired ,using the fo rm ula fo un d in N ote 3 follow in g the C oo l-ing C ap acities table on p age 1 4 .

N O T E :U nitrating s are gross capacities and do no tin-clud e th e effect o f in do o r-fan m o to r h eat. T o calculaten et cap acities, see S tep V .

III Select electric heat.

E nter the Integrated H eating C apacities table on

p a g e 1 5 a t 6 0 0 0 cfm . A t 7 0 F re tu rn in d o o r a ir a n d0 ° F air en terin g th e o utdo o r co il, th e in teg rated h eat-in g c ap a c ity is 5 6 ,8 0 0 B tu h w ith a u n it in p u t k W o f1 1 .3 6 .

T he requ ired he atin g cap acity is 1 7 0 ,0 0 0 B tuh ;th ere-fo re , 1 1 3 ,2 0 0 B tu h (1 7 0 ,0 0 0 − 5 6 ,8 0 0 ) a dd itio n a lelectric h ea t is n ece ssary.

D eterm in e th e ad ditio n al electric h eat cap acity in kW .

1 1 3 ,2 0 0 B tu h= 3 3 .2 k W

3 4 1 2 B tu h / kW

E n ter th e E lectric R esistan ce H ea ter D ata table 2 3 0 -3 -6 0 .T he 3 4 -kW heatersatis es the electric heatreq uirem en t.

IV Determine fan speed and motor horsepower rquirements at design conditions.

B efo re en terin g F an P erfo rm an ce table, calculate thtotal static p ressure required based on un it com pne n ts. From the given an d th e A ccessory/FIO P S tat

P re ssu re ta b le o n p a g e 2 0 , n d :E x te rn a l sta tic p re ssu re 1 .4 5 in . w gE c o n o m ize r sta tic p re ssu re 0 .0 7 in . w gE lectric h eat static p ressure 0 .0 9 in . w g

T o ta l sta tic p re ssu re 1 .6 1 in . w g

E n te r th e F a n P e rfo rm a n ce ta ble o n p a g e 1 8 . A6 0 0 0 cfm an d 1 .6 1 in .w g extern alstatic p ressure,thfan sp eed is 1 2 6 5 and the bh p is 4 .3 2 (interp olatioreq uired ). T h e stan da rd m o to r an d altern ate h igh statd rive are suitab le.

V Determine net capacities.

C ap acities are gross and do no t include the effectind oo r-fan m o to r (IFM ) h eat.

D eterm in e n et co o lin g cap acity as fo llo w s:

N e t c a p a city = G ro ss ca p a city − IF M h e a t

B tu2 5 4 5hp

= 1 8 0 ,8 0 0 − 4 .3 2 b h p ×.8 5

= 1 8 0 ,8 0 0 − 1 2 ,9 3 4= 1 6 7 ,8 6 6 B tu h

N et se n sib le c ap a city = 1 3 6 ,4 0 0 − 1 2 ,9 3 4= 1 2 3 ,4 6 6 B tu h

D eterm in e n et h eatin g cap acity as fo llo w s:

N et capacity =G ross cap acity + IF M he at + E lectric he at cap acity

= 5 6 ,8 0 0 + (IF M kW x 3 4 1 2 ) + (E lec. k W x 3 4 1 2= 5 6 ,8 0 0 + 1 2 ,9 3 4 + (3 4 × 3 4 1 2 )= 5 6 ,8 0 0 + 1 2 ,9 3 4 + 1 1 6 ,0 0 8= 1 8 5 ,7 4 2 B tu h

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Performance data

COOLING CAPACITIES

50HJQ014

Temp (F)Air Ent

OutdoorCoil

Air Entering Indoor Coil — Cfm/BF

3750/0.04 4500/0.05 5000/0.05 5625/0.06 6250/0.07

Air Entering Indoor Coil — Ewb (F)

72 67 62 72 67 62 72 67 62 72 67 62 72 67 62

75TC 167.0 154.0 140.0 171.0 158.0 144.0 173.0 159.0 146.0 171.0 162.0 148.0 173.0 161.0 151.0SHC 79.6 100.0 120.0 85.0 108.0 131.0 87.5 114.0 138.0 94.5 120.0 146.0 97.7 127.0 150.0

kW 10.00 9.77 9.50 10.10 9.87 9.61 10.20 9.93 9.68 10.20 10.00 9.74 10.20 10.00 9.80

85TC 160.0 148.0 133.0 164.0 151.0 137.0 167.0 154.0 140.0 168.0 155.0 143.0 166.0 157.0 146.0SHC 77.6 98.9 118.0 82.0 107.0 129.0 86.1 113.0 136.0 89.6 118.0 142.0 95.3 125.0 146.0kW 11.10 10.80 10.40 11.20 10.90 10.60 11.30 11.00 10.70 11.30 11.00 10.80 11.30 11.10 10.80

95TC 155.0 141.0 127.0 157.0 144.0 131.0 160.0 146.0 133.0 161.0 149.0 137.0 163.0 149.0 140.0SHC 76.1 96.3 115.0 80.3 105.0 126.0 84.4 110.0 132.0 86.5 117.0 137.0 91.7 121.0 140.0kW 12.20 11.80 11.40 12.20 11.90 11.50 12.40 12.00 11.60 12.40 12.10 11.80 12.50 12.10 11.90

105TC 147.0 133.0 120.0 150.0 137.0 124.0 152.0 138.0 127.0 153.0 140.0 131.0 154.0 141.0 134.0SHC 73.6 93.3 112.0 78.5 102.0 123.0 81.6 108.0 127.0 85.1 114.0 131.0 88.6 120.0 134.0kW 13.20 12.70 12.30 13.30 12.90 12.50 13.40 13.00 12.60 13.50 13.10 12.80 13.50 13.10 12.90

115TC 140.0 126.0 112.0 141.0 129.0 118.0 144.0 130.0 121.0 144.0 131.0 125.0 146.0 133.0 128.0SHC 71.4 90.3 109.0 75.1 99.1 117.0 78.9 104.0 121.0 81.9 110.0 125.0 87.0 117.0 128.0kW 14.20 13.70 13.20 14.30 13.90 13.50 14.40 14.00 13.70 14.50 14.00 13.90 14.60 14.10 14.00

125TC 131.0 118.0 105.0 134.0 120.0 111.0 135.0 122.0 115.0 137.0 123.0 118.0 136.0 124.0 121.0SHC 68.1 87.6 105.0 73.5 96.4 111.0 75.7 102.0 115.0 80.7 108.0 118.0 83.4 113.0 121.0kW 15.20 14.70 14.10 15.40 14.90 14.50 15.40 14.90 14.70 15.60 15.00 14.90 15.60 15.10 15.00

50HJQ016

Temp (F)Air Ent

OutdoorCoil

Air Entering Indoor Coil — Cfm/BF

4500/0.06 5250/0.08 6000/0.10 6750/0.10 7500/0.12

Air Entering Indoor Coil — Ewb (F)

72 67 62 72 67 62 72 67 62 72 67 62 72 67 62

75TC 210.0 192.0 173.4 216.0 196.6 178.4 220.0 202.0 182.2 222.0 204.0 185.6 224.0 206.0 190.2SHC 100.6 125.2 148.2 106.0 134.0 160.6 110.6 143.0 172.2 115.0 151.2 183.2 120.2 158.2 190.0kW 13.58 13.12 12.66 13.76 13.28 12.84 13.88 13.44 12.98 13.96 13.52 13.10 14.02 13.60 13.26

85TC 202.0 183.0 164.4 208.0 187.8 169.0 212.0 191.4 172.8 212.0 194.0 177.2 214.0 195.8 182.2SHC 98.0 121.8 144.2 103.8 131.2 156.4 109.0 140.0 168.6 112.0 148.0 177.0 116.2 155.6 182.2kW 14.86 14.32 13.78 15.08 14.52 13.98 15.22 14.66 14.14 15.26 14.78 14.30 15.34 14.86 14.50

95TC 192.4 173.2 155.0 196.2 177.8 159.2 200.0 180.8 163.4 202.0 183.4 169.0 204.0 185.4 174.2SHC 94.8 118.0 140.0 100.2 127.4 152.6 105.6 136.4 163.4 110.6 144.8 169.0 114.2 153.2 173.8kW 16.16 15.52 14.88 16.32 15.72 15.10 16.48 15.88 15.30 16.62 16.00 15.54 16.64 16.12 15.76

105

TC 182.0 163.0 145.0 186.4 167.0 149.4 188.6 170.0 155.4 191.0 172.2 160.8 193.0 173.8 165.2

SHC 91.0 114.2 135.2 96.8 123.6 147.6 101.8 132.6 155.2 107.2 141.2 160.6 112.2 149.6 165.2kW 17.36 16.64 15.92 17.58 16.86 16.16 17.70 17.04 16.48 17.84 17.18 16.74 17.94 17.28 16.96

115TC 171.2 152.4 134.8 175.0 156.2 140.6 177.8 158.8 146.8 179.4 160.8 152.2 179.6 162.2 156.4SHC 87.4 110.2 130.8 92.6 119.4 140.6 98.8 128.2 146.8 103.6 136.8 151.8 107.2 144.6 156.2kW 18.54 17.72 16.90 18.76 17.94 17.24 18.94 18.12 17.60 19.02 18.28 17.90 19.04 18.38 18.16

125TC 159.4 141.2 125.0 162.8 143.8 132.0 165.6 147.0 137.8 166.6 148.8 143.0 168.2 150.0 146.8SHC 83.6 105.8 125.0 89.0 115.0 131.8 94.4 123.6 137.8 99.8 132.2 142.8 105.0 139.6 146.6kW 19.64 18.74 17.88 19.86 19.00 18.34 20.00 19.12 18.72 20.20 19.28 19.00 20.20 19.40 19.28

LEGEND

BF — Bypass FactorEdb — Entering Dry-BulbEwb — Entering Wet-BulbkW — Compressor Motor Power InputSHC — Gross Sensible Heat Capacity (1000 Btuh)TC — Gross Total Capacity (1000 Btuh)

NOTES:

1. Direct interpolation is permissible. Do not extrapolate.2. The following formulas may be used:

t = t Sensible capacity (Btuh)

1.10 x cfmldb edb

t = Wet-bulb temperature corresponding to enthalpy of air leavingindoor coil (h ).

lwblwb

h = h total capacity (Btuh)

4.5 x cfmlwb ewb

Where:h = Enthalpy of air entering indoor coil.ewb

3. SHC is based on 80 F edb temperature of air entering indoor coil.Below 80 F edb, subtract (corr factor x cfm) from SHC.Above 80 F edb, add (corr factor x cfm) to SHC.

BYPASSFACTOR

(BF)

ENTERING AIR DRY-BULB TEMP (F)

79 78 77 76 75 under 75

81 82 83 84 85 over 85 Correction Factor

.05 1.04 2.07 3.11 4.14 5.18

Use formulashown below.

.10 .98 1.96 2.94 3.92 4.90

.20 .87 1.74 2.62 3.49 4.36

.30 .76 1.53 2.29 3.05 3.82

Interpolation is permissible.Correction Factor = 1.10 x (1 BF) x (edb 80).

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INTEGRATED HEATING CAPACITIES

50HJQ014

CFM

ReturnAir

TempF (db)

Temp Air Entering Outdoor Coil (F db at 75% RH)

−10 0 10 17 20 30 40 47 50 60

Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW

375055 40.4 7. 81 53.0 8.35 65.6 8. 89 74. 5 9.27 78.5 9.47 91. 9 10. 10 120.0 11.00 140.0 11.50 147.0 11.80 168.0 12.670 3 7.7 8 .19 4 9.8 8 .8 5 6 1.9 9.51 70 .3 9 .9 7 7 4.1 1 0.20 86 .8 11 .0 0 11 4.0 11 .9 0 1 33 .0 1 2.50 1 39 .0 1 2.90 1 61.0 1 3.980 3 5.4 8 .41 4 7.1 9 .1 5 5 8.8 9.89 67 .0 1 0.40 7 0.8 1 0.70 83 .4 11 .5 0 1 09 .0 1 2.50 1 28 .0 1 3.20 1 34 .0 1 3.60 1 56.0 1 4.7

4500

55 40.3 7. 98 53.9 8.49 67.5 9. 00 77. 0 9.35 80.9 9.54 93. 8 10. 10 123.0 10.90 144.0 11.40 149.0 11.60 167.0 12.3

70 3 6.7 8 .38 4 9.8 9 .0 0 6 2.9 9.62 72 .0 1 0.00 7 5.9 1 0.30 88 .6 11 .0 0 11 6.0 11 .8 0 1 36 .0 1 2.50 1 42 .0 1 2.70 1 63.0 1 3.680 3 3.2 8 .64 4 6.4 9 .3 2 5 9.6 1 0.00 6 8.7 1 0.50 7 2.6 1 0.70 8 5.2 11 .5 0 11 2.0 1 2.50 1 31 .0 1 3.10 1 37.0 1 3.40 1 59.0 1 4.5

500055 41.0 8. 11 54.7 8.60 68.4 9. 09 78.0 9.43 81.9 9.60 95. 0 10.20 124.0 10.90 144.0 11.40 149.0 11.60 165. 0 12.170 4 4.7 8 .45 5 5.2 9 .0 7 6 5.7 9.69 73 .1 1 0.10 7 6.9 1 0.30 89 .7 11 .0 0 11 8.0 11 .9 0 1 38 .0 1 2.50 1 43 .0 1 2.70 1 63.0 1 3.580 3 3.6 8 .76 4 7.0 9 .4 3 6 0.4 1 0.10 6 9.8 1 0.60 7 3.6 1 0.80 8 6.3 11 .6 0 11 3.0 1 2.50 1 32 .0 1 3.10 1 39.0 1 3.40 1 60.0 1 4.4

562555 42.0 8. 27 55.7 8.74 69.4 9. 21 79. 0 9.54 83.0 9.71 96. 2 10. 30 124.0 10.90 144.0 11.40 148.0 11.50 164.0 12.170 4 2.7 8 .66 5 4.3 9 .2 4 6 5.9 9.82 74 .1 1 0.20 7 7.9 1 0.40 90 .9 11 .1 0 1 20 .0 11 .9 0 1 40 .0 1 2.50 1 45 .0 1 2.70 1 63.0 1 3.480 3 4.5 8 .94 4 8.0 9 .5 7 6 1.5 1 0.20 7 0.9 1 0.70 7 4.7 1 0.90 8 7.4 11 .6 0 11 5.0 1 2.50 1 34 .0 1 3.10 1 40.0 1 3.40 1 60.0 1 4.3

625055 44.0 8. 43 57.3 8.89 70.6 9. 35 79. 9 9.67 83.9 9.83 97. 3 10. 40 124.0 11.00 143.0 11.40 147.0 11.50 160.0 12.070 4 5.7 8 .79 5 6.8 9 .3 7 6 7.9 9.95 75 .6 1 0.40 7 9.4 1 0.50 91 .9 11 .2 0 1 20 .0 1 2.00 1 40 .0 1 2.50 1 45 .0 1 2.70 1 61.0 1 3.380 3 5.2 9 .04 4 8.8 9 .7 2 6 2.4 1 0.40 7 1.9 1 0.80 7 5.7 11.00 8 8.4 11 .7 0 11 7.0 1 2.60 1 36 .0 1 3.20 1 42.0 1 3.40 1 59.0 1 4.2

50HJQ016

CFM

ReturnAir

TempF (db)

Temp Air Entering Outdoor Coil (F db at 75% RH)

−10 0 10 17 20 30 40 47 50 60

Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW

4500

55 46.4 9.80 60.8 10.60 75.6 11.34 85.8 11.84 91.4 12.10 110.0 12.96 150.2 14.00 178.2 14.72 189.4 15.08 228.0 16.3

70 39.6 10.04 54.4 10.96 69.8 11.86 80.4 12.48 85.8 12.78 103.4 13.82 141.6 15.02 168.4 15.84 179.0 16.26 214.0 17.680 3 5.0 1 0.20 50 .2 11 .2 0 6 5.8 1 2.20 7 6.8 1 2.90 81 .8 1 3.24 9 9.2 1 4.38 13 6.0 1 5.70 16 1.8 1 6.60 1 72 .0 1 7.04 2 06 .0 1 8.5

525055 47.8 10.02 62.0 10.78 77.0 11.48 87.6 11.96 93.2 12.20 112.0 12.98 153.2 13.92 182.2 14.58 193.4 14.90 230.0 15.970 40.6 10.26 55.8 11.16 71.2 12.00 82.0 12.60 87.4 12.90 105.4 13.86 144.6 14.98 172.0 15.74 182.8 16.12 220.0 17.380 36.0 10.44 51.6 11.40 67.4 12.36 78.4 13.04 83.6 13.36 101.0 14.44 138.8 15.68 165.2 16.52 175.8 16.94 212.0 18.3

600055 48.6 10.26 63.0 10.98 78.4 11.64 89.2 12.10 94.8 12.32 113.6 13.06 155.2 13.94 184.4 14.56 195.8 14.86 234.0 15.870 41.8 10.50 56.8 11.36 72.6 12.18 83.6 12.76 89.0 13.04 107.2 13.96 147.0 15.00 174.8 15.74 185.8 16.08 222.0 17.280 37.2 10.66 52.8 11.62 68.6 12.54 79.8 13.20 85.0 13.50 103.0 14.56 141.4 15.72 168.2 16.52 179.0 16.90 216.0 18.1

675055 49.2 10.50 63.8 11.18 79.4 11.82 90.2 12.26 96.0 12.46 115.2 13.18 158.0 14.02 187.8 14.60 198.4 14.84 234.0 15.670 42.6 10.72 58.0 11.58 73.6 12.38 84.6 12.92 90.2 13.20 108.6 14.08 149.2 15.08 177.6 15.78 188.4 16.10 224.0 17.180 38.2 10.88 54.0 11.84 69.8 12.74 81.0 13.38 86.4 13.68 104.4 14.68 143.4 15.80 170.8 16.58 181.6 16.94 218.0 18.1

750055 50.0 10.72 64.6 11.40 80.2 12.00 91.0 12.42 97.0 12.64 116.6 13.30 159.8 14.14 190.0 14.70 200.0 14.92 234.0 15.570 43.4 10.96 58.8 11.80 74.6 12.58 85.6 13.12 91.2 13.36 110.0 14.22 151.0 15.20 179.6 15.88 190.2 16.16 226.0 17.180 39.0 11.12 54.8 12.06 70.8 12.94 82.0 13.56 87.6 13.86 105.6 14.84 145.0 15.92 172.6 16.66 183.6 17.00 220.0 18.1

LEGEND

Cap. — Capacity (1000 Btuh)Edb — Entering Air Dry-Bulb

Temperature (F)Ldb — Leaving Air Dry-Bulb

Temperature (F)kW — Compressor and Outdoor-Fan

Power InputRH — Relative Humidity

NOTES:1. Integrated heating capacity ratings shown are not adjusted for the effects

the indoor-fan motor power and heat. A deduction has been made for defroing the outdoor coils at temperatures below 40 F.

2. Direct interpolation is permissible. Do not extrapolate.

3. When using auxiliary and/or supplementary heating, the maximum allowaleaving-air temperature is 140 F.

Ldb F =Total heating cap. (Btuh)

Edb F +1.10 x airflow cfm

4. For supplementary glycol coil:

Fluid flow Gpm

fluid capacity (Btuh)=

500 x fluid temperature drop (F)

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Performance data (cont)

FAN PERFORMANCE*

50HJQ014 (208/230 V AND 460 V)

Airflow(Cfm)

External Static Pressure (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp

3750 724 481 0.55 838 685 0.78 937 889 1.01 1028 1097 1.25 1111 1309 1.494000 754 613 0.70 865 824 0.94 962 1034 1.18 1050 1247 1.42 1131 1463 1.674250 786 757 0.86 893 975 1.11 987 1191 1.36 1073 1408 1.60 1152 1629 1.864500 818 914 1.04 922 1138 1.30 1013 1360 1.55 1097 1583 1.80 1174 1808 2.064750 850 1084 1.23 951 1313 1.50 1040 1541 1.76 1122 1770 2.02 1197 2000 2.285000 883 1267 1.44 980 1501 1.71 1068 1736 1.98 1147 1969 2.24 1221 2204 2.515250 917 1464 1.67 1011 1703 1.94 1096 1943 2.21 1174 2183 2.49 1246 2423 2.765500 950 1675 1.91 1041 1918 2.19 1124 2165 2.47 1201 2409 2.75 1272 2655 3.025750 985 1901 2.17 1072 2147 2.45 1153 2400 2.73 1228 2650 3.02 1298 2901 3.316000 1020 2142 2.44 1103 2391 2.72 1183 2649 3.02 1256 2905 3.31 1324 3160 3.606250 1055 2398 2.73 1135 2650 3.02 1213 2912 3.32 1284 3175 3.62 1352 3435 3.91

50HJQ014 (208/230 V AND 460 V) (cont)

Airflow(Cfm)


1.2 1.4 1.6 1.8 2.0


3750 1190 1526 1.74 1265 1746 1.99 1337 1972 2.25 1405 2199 2.51 1471 2431 2.774000 1208 1684 1.92 1281 1908 2.17 1351 2136 2.43 1418 2368 2.70 1483 2603 2.974250 1227 1853 2.11 1299 2082 2.37 1367 2313 2.64 1433 2548 2.90 1496 2787 3.184500 1247 2036 2.32 1317 2268 2.58 1384 2503 2.85 1448 2742 3.12 1510 2983 3.404750 1269 2232 2.54 1337 2468 2.81 1403 2707 3.08 1465 2948 3.36 1526 3194 3.645000 1291 2441 2.78 1358 2680 3.05 1422 2923 3.33 1484 3168 3.61 1544 3418 3.895250 1315 2664 3.03 1380 2907 3.31 1443 3154 3.59 1503 3403 3.88 1562 3655 4.165500 1339 2900 3.30 1403 3148 3.59 1464 3398 3.87 1524 3651 4.16 — — —5750 1364 3151 3.59 1426 3403 3.88 1486 3657 4.17 — — — — — —6000 1389 3416 3.89 1450 3672 4.18 — — — — — — — — —6250 1415 3695 4.21 — — — — — — — — — — — —

*Refer to Notes 1 and 2 for drive ranges and motor limitations.

LEGEND

Bhp — Brake Horsepower Input to FanFIOP — Factory-Installed OptionWatts — Input Watts to Motor

NOTES:

1. Standard drive range is 891 to 1179 rpm. Alternate drive range is1227 to 1559. Other rpms may require a field-supplied drive.

2. Maximum continuous bhp is 4.25 and maximum continuous watts are3775. Do not adjust motor rpm such that motor maximum bhp and/orwatts is exceeded at the maximum operating cfm.

3. Static pressure losses (i.e., economizer) must be added to externalstatic pressure before entering Fan Performance table.

4. Interpolation is permissible. Do not extrapolate.5. Fanperformance is basedon wetcoils, clean filters, andcasing losses.

See page 20 for accessory/FIOP static pressure information.6. Extensive motor and drive testing on these units ensures that the full

horsepower and watts range of the motor can be utilized with confi-dence. Using your fan motors up to the watts or bhp rating shownwill not result in nuisance tripping or premature motor failure. Unitwarranty will not be affected.

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FAN PERFORMANCE (cont)*

50HJQ014 (575 V)

Airflow(Cfm)


0.2 0.4 0.6 0.8 1.0


3750 724 481 0.55 838 685 0.78 937 889 1.01 1028 1097 1.25 1111 1309 1.494000 754 613 0.70 865 824 0.94 962 1034 1.18 1050 1247 1.42 1131 1463 1.674250 786 757 0.86 893 975 1.11 987 1191 1.36 1073 1408 1.60 1152 1629 1.864500 818 914 1.04 922 1138 1.30 1013 1360 1.55 1097 1583 1.80 1174 1808 2.064750 850 1084 1.23 951 1313 1.50 1040 1541 1.76 1122 1770 2.02 1197 2000 2.285000 883 1267 1.44 980 1501 1.71 1068 1736 1.98 1147 1969 2.24 1221 2204 2.515250 917 1464 1.67 1011 1703 1.94 1096 1943 2.21 1174 2183 2.49 1246 2423 2.765500 950 1675 1.91 1041 1918 2.19 1124 2165 2.47 1201 2409 2.75 1272 2655 3.025750 985 1901 2.17 1072 2147 2.45 1153 2400 2.73 1228 2650 3.02 1298 2901 3.316000 1020 2142 2.44 1103 2391 2.72 1183 2649 3.02 1256 2905 3.31 — — —6250 1055 2398 2.73 1135 2650 3.02 1213 2912 3.32 — — — — — —

50HJQ014 (575 V)

Airflow(Cfm)


1.2 1.4 1.6 1.8 2.0


3750 1190 1526 1.74 1265 1746 1.99 1337 1972 2.25 1405 2199 2.51 1471 2431 2.774000 1208 1684 1.92 1281 1908 2.17 1351 2136 2.43 1418 2368 2.70 1483 2603 2.974250 1227 1853 2.11 1299 2082 2.37 1367 2313 2.64 1433 2548 2.90 1496 2787 3.184500 1247 2036 2.32 1317 2268 2.58 1384 2503 2.85 1448 2742 3.12 1510 2983 3.404750 1269 2232 2.54 1337 2468 2.81 1403 2707 3.08 1465 2948 3.36 — — —5000 1291 2441 2.78 1358 2680 3.05 1422 2923 3.33 — — — — — —5250 1315 2664 3.03 1380 2907 3.31 — — — — — — — — —5500 1339 2900 3.30 — — — — — — — — — — — —5750 — — — — — — — — — — — — — — —6000 — — — — — — — — — — — — — — —6250 — — — — — — — — — — — — — — —


LEGEND


NOTES:1. Factory-shipped motor drive range is 1159 to 1429 rpm. Other rpms

may require a field-supplied drive.2. Maximum continuous bhp is 3.45 and maximum continuous watts are

3065. Do not adjust motor rpm such that motor maximum bhp and/orwatts is exceeded at the maximum operating cfm.

3. Static pressure losses (i.e., economizer) must be added to externstatic pressure before entering Fan Performance table.

4. Interpolation is permissible. Do not extrapolate.5. Fanperformance is based on wet coils, clean filters, andcasing losse

See page 20 for accessory/FIOP static pressure information.6. Extensive motor and drive testing on these units ensures that the f

horsepower and watts range of the motor can be utilized with condence. Using your fan motors up to the watts or bhp rating showwill not result in nuisance tripping or premature motor failure. Uwarranty will not be affected.

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FAN PERFORMANCE (cont)*

50HJQ016

Airflow(Cfm)


0.2 0.4 0.6 0.8 1.0


4500 584 717 0.8 695 952 1.1 798 1205 1.3 893 1483 1.7 984 1786 2.04800 609 839 0.9 717 1085 1.2 815 1346 1.5 907 1630 1.8 994 1938 2.25100 634 971 1.1 738 1229 1.4 833 1500 1.7 921 1791 2.0 1006 2104 2.45400 660 1118 1.3 760 1389 1.6 852 1669 1.9 937 1968 2.2 1019 2286 2.65700 687 1284 1.4 783 1566 1.8 873 1858 2.1 956 2165 2.4 1034 2490 2.86000 712 1458 1.6 805 1752 2.0 892 2055 2.3 973 2371 2.7 1049 2703 3.06300 736 1644 1.8 826 1952 2.2 911 2265 2.5 990 2591 2.9 1064 2930 3.36600 763 1856 2.1 851 2176 2.4 933 2502 2.8 1010 2837 3.2 1082 3186 3.66900 788 2078 2.3 873 2410 2.7 954 2747 3.1 1029 3093 3.5 1099 3451 3.97200 813 2316 2.6 896 2662 3.0 975 3011 3.4 1048 3367 3.8 1117 3734 4.27500 841 2584 2.9 921 2943 3.3 998 3304 3.7 1070 3672 4.1 1137 4049 4.5

50HJQ016 (cont)

Airflow(Cfm)


1.2 1.4 1.6 1.8 2.0


4500 1070 2113 2.4 1151 2458 2.8 1229 2819 3.2 1302 3194 3.6 — — —4800 1078 2269 2.5 1157 2620 2.9 1233 2990 3.3 1306 3374 3.8 — — —

5100 1086 2439 2.7 1164 2795 3.1 1238 3170 3.5 — — — — — —5400 1097 2626 2.9 1172 2986 3.3 1245 3366 3.8 — — — — — —5700 1110 2835 3.2 1183 3200 3.6 1253 3584 4.0 — — — — — —6000 1122 3053 3.4 1193 3422 3.8 1262 3810 4.3 — — — — — —6300 1135 3286 3.7 1204 3660 4.1 1271 4052 4.5 — — — — — —6400 1151 3549 4.0 1218 3928 4.4 1283 4325 4.8 — — — — — —6900 1167 3821 4.3 1232 4207 4.7 1295 4608 5.2 — — — — — —7200 1183 4113 4.6 1246 4505 5.0 — — — — — — — — —7500 1202 4437 5.0 1264 4837 5.4 — — — — — — — — —


LEGEND


NOTES:

1. Standard drive range is 817 to 1038 rpm. Alternate drive range is1082 to 1303. Other rpms may require a field-supplied drive.2. Maximum continuous bhp is 5.90 and maximum continuous watts are

5180. Do not adjust motor rpm such that motor maximum bhp and/orwatts is exceeded at the maximum operating cfm.

3. Static pressure losses (i.e., economizer) must be added to externalstatic pressure before entering Fan Performance table.

4. Interpolation is permissible. Do not extrapolate.5. Fanperformance is basedon wetcoils, clean filters, andcasing losses.

See page 20 for accessory/FIOP static pressure information.6. Extensive motor and drive testing on these units ensures that the full

horsepower and watts range of the motor can be utilized with confi-dence. Using your fan motors up to the watts or bhp rating shown

will not result in nuisance tripping or premature motor failure. Unitwarranty will not be affected.

1 8

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FAN RPM AT MOTOR PULLEY SETTINGS*

UNIT50HJQ

MOTOR PULLEY TURNS OPEN

0 1 ⁄ 2 1 11 ⁄ 2 2 21 ⁄ 2 3 31 ⁄ 2 4 41 ⁄ 2 5 51 ⁄ 2 6

014 (208/230 V and 460 V)† — — 1179 1150 1121 1093 1064 1035 1006 978 949 920 891

014 (208/230 V and 460 V)** — — 1559 1522 1488 1455 1422 1389 1356 1323 1289 1256 1227

014 (575 V)† — — 1429 1403 1376 1349 1323 1296 1269 1242 1215 1188 1159

016† — — 1038 1023 1001 979 956 934 912 890 868 846 817

016** — — 1303 1288 1266 1244 1222 1199 1177 1155 1133 1111 1082

*Approximate fan rpm shown.†Standard motor with standard drive.

**Standard motor with alternate drive.

ELECTRIC RESISTANCE HEATER DATA

UNIT 50HJQ

HEATER kWHEATERSTAGES

% HEATPER STAGE

MAXIMUMSTAGES*

Unit Voltages

208 230 460 575

01414 19 15 — 1 100 126 34 32 — 2 50/50 242 56 55 37 2 33/67 3

01626 34 32 — 2 50/50 242 56 55 — 2 33/67 3 — — — 50 2 50/50 4

*Maximum number of stages using accessory outdoor-air thermostats.

NOTE: Heaters are rated at 208 v, 240 v, 480 v, and 600 v.

FAN P ERFORMANCE US ING ACCESS ORY PO WER EXHAUST

HORIZONTAL SUP PLY/ RETURN FAN PERFORMANCEWITH 5 0 DP9 0 0 2 1 1 HIGH STATIC REGAIN ADAPTER

NOTE: The 50DP900211 high static regain adapter accessory may be used toprovide horizontal supply/return.

NOTE: The 50DP900211 horizontal supply/return adapter accessory improves50HJQ fan performance by increasing external static pressureby amount shownabove.

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ACCESSO RY/FIOP S TATIC PRESS URE (in. wg )

ACCESSORY/FIOP UNIT SIZE UNIT VOLTAGE kW CFM

3750 4500 5000 5600 6000 6250 7200 7500

Electric Heaters

014

208/230-3-60 14-34

42,560.050.06

0.050.06

0.070.08

0.080.10

0.090.12

0.090.13

0.110.16

0.120.17

460-3-60 15,32

550.050.06

0.050.06

0.070.08

0.080.10

0.090.12

0.090.13

0.110.15

0.120.15

575-3-60 37 0.06 0.06 0.08 0.10 0.12 0.13 0.15 0.17

016208/230-3-60

26,34

42,59 * * *

0.08

0.10

0.09

0.12

0.09

0.13

0.11

0.16

0.12

0.17

460-3-60 32,55 * * * 0.08

0.100.090.12

0.090.13

0.110.15

0.120.17

575-3-60 50 * * * 0.13 0.15 0.16 0.20 0.21

Economizer All All — 0.03 0.03 0.05 0.06 0.07 0.07 0.09 0.10

Glycol Coil All All — 0.16 0.18 0.25 0.31 0.35 0.37 0.44 0.46

LEGEND

FIOP — Factory-Installed Option*Units with electric heat are not designed to operate at these ranges.

NOTES:1. Heaters are rated at 208/240 v, 480 v, and 600 v.

2. The static pressure must be added to external static pressure. Thesum and the indoor-air section entering-air cfm should then be usedin conjunction with the Fan Performance table to determine blowerrpm, bhp, and watts.

INDOOR-FAN MOTOR PERFORMANCE

UNIT50HJQ

UNITVOLTAGE

MAXIMUMACCEPTABLECONTINUOUS

BHP*

MAXIMUMACCEPTABLE

OPERATINGWATTS

MAXIMUMAMP DRAW

MOTOREFFICIENCY

014

208/2304.25 3775

10.5 85.8

460 7.9 85.8

575 6.0 3065 3.9 81.7

016

208/230

5.90 5180

15.8 87.5

460 7.9 87.5

575 6.0 87.5

LEGEND

Bhp — Brake Horsepower

*Extensive motor and electrical testing on these units ensures that thefull horsepower range of the motors can be utilized with confidence.Using your fan motors up to the horsepower ratings shown in this tablewill not result in nuisance tripping or premature motor failure. Unit war-ranty will not be affected.

GLYCOL COIL DATA*

EDB EGT

CFM4400 5000 6200

% Glycol

25 50 25 50 25 50

Cap. Gpm Ldb Cap. Gpm Ldb Cap. Gpm Ldb Cap. Gpm Ldb Cap. Gpm Ldb Cap. Gpm Ldb

55200 310 33 120 293 33 116 333 35 117 315 36 113 375 40 111 353 40 108180 255 27 108 237 27 105 274 29 106 254 29 102 308 33 101 285 33 98160 200 21 97 181 21 93 215 23 95 194 22 91 241 25 91 217 25 87

70200 274 29 127 257 29 124 294 31 124 276 31 121 331 35 119 310 35 116180 218 23 116 201 23 112 235 25 114 216 25 110 264 28 109 241 28 106160 164 17 104 146 17 100 176 19 103 156 18 99 197 21 99 174 20 96

80200 249 26 132 233 27 129 268 28 130 250 28 126 301 32 125 280 32 122180 194 21 121 177 20 117 209 22 119 190 22 115 234 25 115 212 24 112160 140 15 109 123 14 106 150 16 108 131 15 104 168 18 105 146 17 102

LEGEND

Cap. — Btuh x 1000EDB — Entering Dry-Bulb Temperature (F)EGT — Entering Glycol Temperature (F)Gpm — Gallons per MinuteLdb — Leaving Dry-Bulb Temperature (F)

*This accessory glycol coil is intended for use with a MINIMUM of 25%

glycol solution. It IS NOT intended for use solely with water due tofreeze-up conditions and the resulting water damage to the conditionedspace.

NOTE: Fluid t = 20 F.

GLYCO L CO IL RATINGS

ENTERINGFLUIDTEMP

(F)

CFM

4000 5000 6000 8000

GPM P GPM P GPM P GPM P

200 27 1.2 31 1.5 35 1.8 41 2.4

180 22 0.9 25 1.1 27 1.3 32 1.6

160 16 0.6 19 0.7 20 0.8 24 1.0

NOTE: P is the fluid pressure in ft of head.

2 0

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Electrical data

UNIT50HJQ

VOLTAGE(3 PH, 60 Hz)

VOLTAGERANGE

COMPRESSOR OUTDOORFAN

MOTOR

INDOOR FANMOTOR

POWEREXHAUST

ELECTRIC HEAT* POWER SUPPLY DISCONNECT

SIZINGNo. 1 No. 2

Min Max R LA LR A RLA LRA Qty FLA

(ea) Hp FLA FLA LRA FLA kW MCA MOCP† RLA LRA

014

208/230 187 253 39.7 228 — — 3 1.7 3.7 10.5/10.5

— —

—/— —/— 65/ 65 100/100 64/ 64

387/383 9/ 4 5 1 4/19 11 4/12 2 1 25/15 0 6 4/ 6472/ 92 26/34 155/168 175/175 94/107

117/135 42/56 211/200 225/225 147/167

4 .6 1 8.8

—/— —/— 70/ 70 100/100 69/ 69

406/403 9/ 4 5 1 4/19 11 9/12 6 1 25/15 0 6 9/ 6972/ 82 26/34 159/173 175/175 100/112

117/135 42/56 216/205 225/225 152/173

460 414 508 19.9 114 — — 3 0.8 3.7 4.8

— —

— — 32 50 31

18918 15 54 60 3139 32 81 90 5066 55 98 110 82

2.3 6.0

— — 34 50 34

19518 15 57 70 3439 32 83 90 5366 55 100 110 84

575 518 632 16.0 91 — — 3 0.75 3.0 3.9

— — — — 26 40 26

9137 37 72 80 47

2.1 4.8 — — 28 40 28

9637 37 75 80 50

016

208/230 187 253 28.2 160 28.2 160 3 1.7 5 15.8/158

— — —/— —/— 84/ 84 110/110 89/ 89

499/48572/ 82 26/34 174/187 175/200 101/112117/135 42/56 231/219 250/225 153/173

4.6 18.8

—/— —/— 89/ 89 110/110 94/ 94

518/5072/ 82 26/34 179/191 200/200 106/118117/135 42/56 235/224 250/225 158/179

460 414 508 14.1 80 14.1 80 3 0.8 5 7.9

— — — — 42 50 44

23839 32 91 100 5466 55 108 110 85

2.3 6.0 — — 44 50 47

24439 32 93 100 5766 55 110 125 88

575 518 632 11.3 64 11.3 64 3 0.75 5 6.0

— — — — 34 40 35

16550 50 96 100 64

2.1 4.8 — — 36 45 38

16950 50 98 100 67

LEGENDFLA — Full Load AmpsH AC R — Heating, Air Conditioning and RefrigerationLRA — Locked Rotor AmpsMCA — Minimum Circuit AmpsMOCP — Maximum Overcurrent ProtectionNEC — National Electrical Code

RLA — Rated Load Amps*Heater capacity (kW) is based on heater voltage of 208 v, 240 v, 480 v and

600 v. If power distribution voltage to unit varies from rated heater voltage, heaterkW will vary accordingly.

†Fuse or HACR circuit breaker. This is the maximum size permissible; smaller fusesize may be used where conditions permit.

NOTES:1. Incompliance withNEC requirementsfor multimotor and combination load equ

ment (refer to NEC Articles 430 and 440), the overcurrent protective device the unit shall be fuse or HACR breaker. The Canadian units may be fuse circuit breaker.

2. MCA calculation for units with electric heaters over 50 kW= (1.25 x IFM amps) + (1.00 x heater FLA).

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Typical piping and wiring

NEC — National Electrical CodeNOTES:1. Illustration shown is a general guide only and is not intended for

or to include all details for any specific installation.2. Installation must comply with all applicable codes.

3. A 90-degree elbow must be provided in the supply ductwork tocomply with UL (Underwriters’ Laboratories) codes for use withelectric heat.

2 2

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Typical wiring schematic(50HJQ016 460-3-60 v shown)

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Typical wiring schematic (cont)

LEGEND AND NOTES FOR TYPICAL WIRING SCH EMATIC

AHA — Adjustable Heat AnticipatorBKR W/AT — Breaks with Amp TurnsC — Contactor, CompressorCAP — CapacitorCB — Circuit BreakerCC — Cooling CompensatorCH — Crankcase HeaterCLO — Compressor LockoutCLS — Cooling Lockout SwitchCOMP — Compressor MotorCT — Current Transformer

CTD — Compressor Time DelayDB — Defrost BoardDFT — Defrost ThermostatDM — Damper MotorDR — Defrost RelayEAS — Economizer Actuator Auxiliary SwitchEMC — Economizer Motor ContactorEQUIP — EquipmentFL — Fuse LinkFPT — Freeze Protection ThermostatGND — GroundHC — Heater ContactorHPS — High-Pressure SwitchHR — Heat RelayHTR — HeaterIFC — Indoor-Fan ContactorIFCB — Indoor-Fan Circuit BreakerIFM — Indoor Fan MotorIP — Internal Protector

L — LightLOR — Lock Out RelayLPS — Low-Pressure SwitchLS — Limit SwitchMAT — Mixed-Air ThermostatOAT — Outdoor-Air ThermostatOFC — Outdoor-Fan ContactorOFM — Outdoor Fan MotorOP — Overcurrent ProtectorPL — Plug AssemblyQT — Quadruple Terminal

RVR — Reversing Valve RelayRVS — Reversing Valve SolenoidTB — Terminal BlockTC — Thermostat CoolingTH — Thermostat HeatingTRAN — TransformerUR — Unloader Relay

Terminal (Marked)

Terminal (Unmarked)

Terminal Block

Splice

Factory Wiring

Field WiringOption/Accessory Wiring

To Indicate Common Potential Only:Not To Represent Wiring

NOTES:1. Compressor and/or fan motor(s) thermally protected. Three-phase motors are pro-

tected against primary single phasing conditions.2. If any of the original wire furnished must be replaced, it must be replaced with type

90°C wire or its equivalent.3. CB1,2 must trip amps are equal to or less than 156% FLA, IFCB 140%.4. The CLO locks out the compressor to prevent short cycling on compressor overload

and safety devices. Before replacing CLO, check these devices.5. Jumpers are omitted when unit is equipped with economizer.6. Number(s) indicates the line location of used contacts. A bracket over (2) numbers

signifies a single-pole, double-throw contact. An underlined number signifies a normally-closed contact. Plain (no line) number signifies a normally-open contact.

7. Remove jumper between terminals RC and RH.

2 4

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OPTIONAL NON-FUSED DISCONNECT SWITCH

NOTES:1. If the Service Option Package is ordered, the Non-Fused Disconnect shall be

factory-installed.2. The Disconnect takes the place of TB-1 as shown on the unit wiring diagram

label and the component arrangement label.

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Typical wiring schematic (cont)

ECONO MIZER AND S MOKE CONTROL/ FIRE SHU TDO WN WIRING

See Legend on page 24.*Included in power exhaust accessory.OPERATING MODESBP — Building Pressurization: Indoor fan on, economizer energized to fully open position, power exhaust disabled.E — Evacuation: Indoor fan off, economizer deenergized to fully closed position, power exhaust on (open).SD — Complete Unit Shutdown: Breaks 24-v power to thermostat.SP — Smoke Purge: Indoor fan on, economizer energized to fully open position, power exhaust on.

LEGENDField WiringField-Supplied Switch

2 6

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Controls

Sequence of ope ration

Cooling, units without eco nomizer — W ith un it m ainp o w e r o n , s e t th e rm o s ta t to C O O L p o sitio n a n d d e sire dro o m te m p e ra tu re . S e t fa n sw itc h a t A U T O . (o n d e m a n d )or O N (con tinu ou s) p ositio n.

O n a rise in roo m tem p erature, coo ling con tactn o. 1 inthe therm ostat closes. T he ind oo r and ou tdo or fan m otorsstart. If the 5 -m inu te com p ressor tim e-delay (C T D ) on thed e fro s t b o a rd (D B ) is sa tis e d , th e n c o m p re sso r n o . 1

(5 0 H J Q 0 1 6 ) o r u n lo a de d co m p re sso r (5 0 H J Q 0 1 4 ) co n -tacto r is en ergized an d com p ressor w ill start. C om p resso rcycles o n dem and of the therm ostat to satisfy roo m con di-tion s. E ach tim e the coo ling contactor no . 1 op ens, theC T D starts the 5 -m inu te delay.

O n 5 0 H JQ 0 1 6 un its,w ith an add itio na lrise in ro om tem -p erature, coo lin g con tacto r no . 2 in th e th erm o stat clo ses,e n e rg izin g c o m p re sso r c o n ta c to r n o . 2 . C o m p re sso r n o . 2starts an d cycles o n de m an d o f th e th erm o stat to satisfy th eo c c u p ie d sp a c e d e m a n d s.

O n 5 0 H J Q 0 1 4 u n its, c o m p re sso r ru n s fu lly lo a d e d o n acall fo r seco n d-stag e co o lin g.

Cooling, units with eco nomizer — U p on a callfor coo l-in g , w h e n o u td o o r a m b ie n t te m p e ra tu re is a b o v e th e te m -

p erature con trol setting , the ind oo r and ou tdo or fans andcom p ressor(s)en ergize. T he econ om izer dam p er m oves toven t p o sitio n .

U p on a rst-stage call for coo ling , w h en ou tdo or am bi-en t tem p erature is belo w the tem p erature con trol settin g,the ind oo r fan starts and econ om izer dam p er m od ulates tom aintain m ixed-air tem perature. T he com pressor(s)rem ain s o ff.

U p on a secon d-stage callfor coo ling , com p ressor no . 1(5 0 H J Q 0 1 6 ) o r lo a d e d c o m p re sso r (5 0 H J Q 0 1 4 ) is e n e r-gized an d m ech an icalco o lin g is in teg rated w ith eco n o m izerc o o lin g . C o m p re sso r n o . 2 (5 0 H J Q 0 1 6 ) is lo c k e d o u t. Ifthe air tem p erature is below 5 0 F, a coo lin g lo ckou t sw itchp reven ts the com p resso r(s) from run ning .

W hen sup p ly-airtem p erature drop s below a xed setpo int,th e e c o n o m ize r d a m p e r m o d u la te s to m a in ta in th e te m -p erature at the xed set p oint.

A freeze p ro tectio n th erm o stat (F P T )is lo cated o n th e in -do or coil. It detects fro st build-up an d turns off th e com -p ressor(s), allo w in g th e co ilto clea r. O n ce fro sth as m elted ,the com p ressor can be reenergized.

Heating, units without economizer — W ith un it m ainp ow er on ,settherm ostatatH E A T p osition and desired roo mte m p e ra tu re . S e t fa n sw itc h a t A U T O . (o n d e m a n d ) o r O N(co n tin uo us) p o sitio n .

O n a drop in roo m tem p erature,h eating con tactno .1 inth e th erm o stat clo ses,en ergizin g h ea t relay (H R ), reve rsin gvalve relay (R V R ),reversing valve soleno ids (R V S 1 and R V S 2 )a n d c o m p re sso r n o . 2 c o n ta c to r. C o m p re sso r (size 0 1 4 ) o rc o m p re sso r n o . 2 (size 0 1 6 ) a n d in d o o r a n d o u td o o r fa nm o to rs sta rt. If th e 5 -m in u te C T D o n th e D B is sa tis e d ,then com p ressor no .1 con tactor is energized and com p res-so r n o . 1 w ill start.

O n un its equ ip p ed w ith electric h eat,w h en add itio n alhe atis ne eded ,h eatin g con tacto r no .2 in th e th erm ostat clo ses,en ergizing W 2 .

Heating, units with econo mizer — W ith un itm ain p ow eron ,settherm ostatat H E A T p osition and desired roo m tem -p e ra tu re . S e t fa n sw itc h a t A U T O . (o n d e m a n d ) o r O N (c o n -tin u o u s) p o sitio n .

O n a drop in roo m tem p erature,h eating con tactno .1 inth e th erm o stat clo ses,en ergizin g h ea t relay (H R ), reve rsin g

valve relay (R V R ),reversing valve soleno ids (R V S 1 and R V Sa n d c o m p re sso r n o . 2 c o n ta cto r. C o m p re sso r n o . 2 (0 1a n d in d o o r a n d o u td o o r fa n m o to rs (0 1 4 ,0 1 6 ) s ta rt. If th5 -m in u te C T D o n th e D B is sa tis e d , th e n c o m p re sso r (0 1o r c o m p re sso r n o . 1 (0 1 6 ) c o n ta c to r is e n e rg ize d a n d c o mp re sso r (0 1 4 ) o r c o m p re sso r n o . 1 (0 1 6 ) w ill sta rt. T hou tdo or-air dam p er stays at vent p o sition w h ile the in dofan is o p eratin g.

O n un its equ ip p ed w ith electric h eat,w h en add itio n alhe

is n eeded ,h eating con tactor n o. 2 in the th erm ostat clo seen ergizin g W 2 .

Defrost cycle — W h e n th e te m p e ra tu re o f th e o u td o ocoildrops below 2 8 F as sensed by the defrost therm ost(D F T 1 o r D F T 2 ), th e d e fro s t tim e r s ta rts. A t th e e n d o ftim e d p e rio d ( e ld se t a t 3 0 , 5 0 , o r 9 0 m in u te s), th e dfro stcycle w illb eg in . T h e de fro stb o ard en ergizes term in aO an d W 2 ,en ergizes the defrostrelay (D R ),d een ergizes threversin g valve so len oids (R V S 1 an d R V S 2 ), an d en ergizth e electric h eat. T h e o utdo o r-fan m o to r w ill sto p .

T he un it co ntin ues to defro st e ithe r un til th e coil temp e ra tu re a s m e a su re d b y D F T 1 o r D F T 2 re ach e s 6 5 F ,un til un it com p letes a 1 0 -m in ute defro st cycle.

D uring the defrost m od e, w hen a circuit defrosts, R V

w ill o scillate be tw e en h eatin g an d coo lin g m o des un til dfro st m od e is com p lete. T h is w illp revent the he ad p ressufro m gettin g to o h igh .

A t th e en d o f th e de fro stcycle, th e electric h eaters (if ap licab le) w ill be de en ergized, th e reve rsin g valve solen o iw ill be en ergized, an d th e o utdo o r fan s w ill start.

Automatic changeover — W h en th e system selectiosw itch is seta t A U T O . p o sitio n , un it au to m atically cha n gfro m he atin g op eration to coo ling op eration w h en th e temp erature o f th e con ditio n ed sp ace rises to th e coo lin g levsettin g. W h en th e tem p erature o fth e co n ditio n ed spa ce fato th e h ea tin g leve r settin g, un ita uto m atically ch an ge s froc o o lin g to h e a tin g o p e ra tio n (w ith a 3 F d e a d b a n d

be tw een ).

Continuous air circulation — T u rn u n it p o w e r o n . Ssy ste m c o n tro l a t O F F p o sitio n . S e t fa n sw itc h a t O N psitio n . T h e in do o r-fan con tacto r is en ergized th ro ug h ththe rm o stat sw itch an d th e in do or fan run s con tin uo usly.

Cycle-LOC™ protection — If un it o p eratio n is in terup ted by an o p en h igh -p ressure sw itch ,lo w -p ressure sw itcin do o r co ilfreezestat, o r by co m p resso r in ternal lin e-breade vice (o vercurren t o r o vertem p erature),a n d com p resso rcallin g fo r eith er coo lin g o r h eatin g, C ycle-L O C p ro tectiodevice sim ultan eo usly locks o ut un it an d ligh ts a w arninligh t o n th e th erm o stat. R estart th e un it by m an ually turin g th e rm o s ta t to O F F a n d th e n to O N p o sitio n . If a n y the p rotective devices o p en s again, the un it co n tinu es lo ck o ut un til co rrective actio n is tak en .

N O T E : If the un it fails to op erate due to com p ressor ovecu rren tc o n ditio n ,restartb y m an ua lly resettin g circu itb reaers at the un it.R estartcan n ot be accom p lishe d at the rooth erm o stat.

Emergency heat — If com p ressor is in op erative due totrip p ed safety de vice (h igh o r lo w p ressure,in do o r co ilfreezstat, o vercurren t, o r o vertem p erature), th e C ycle-L O C dvice locks o ut the com p ressor an d ligh ts a w arnin g ligh t othe roo m th erm ostat. W h en th e sw itch is on (the rm o statset to the E M H T p osition ), com p resso r circuit an d o utdotherm ostats are byp assed, and the secon d stage of therm stat en ergizes th e in do o r blo w er an d th e electric resistanh ea ters.

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CCDH

IALMNOPST

TVV

†*

INDOO R-AIR Q UALITY C ONTROLS WIRING

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TEMP Sys tem s

A T E M P S y ste m is a n e tw o rk o f c o m m u n ic atin g C a rrie rT E M P S ystem T herm ostats and roo ftop un its w ith factory-m o un ted, direct digital co n tro ls, each servin g its o w n zon ean d h eatin g/ co o lin g un it. N etw o rkin g allo w s yo ur bu ildin gm an ager to easily access each o fyo ur system s fro m a sing lelo catio n ... w h eth er th ey are in th e sam e bu ildin g o r lo catedth ro u g h o u t to w n .

T he T E M P S ystem ’s inh erently fl exible,m od ular base dsign sup p o rts th e exact n um ber of ind ep end ent,sing le zon

system s yo u requ ire...no m o re, n o less, n o com p rom ises

Ideal for dep artm en t sto res, sm all o f ce building s, fafo o d c h a in s, s ch o o ls, a n d h o te ls, a T E M P S y ste m is cost-effective w ay to m aintain com fo rtable buildinen viro n m en ts.

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Controls (cont)

TYPICAL FIELD THERMOSTAT WIRING

LEGEND

TB — Terminal Block

NOTE: The 50HJQ units have 2 independent con-trol circuits, each with a different transformer. Dueto this advanced design, a thermostat with the ca-pability to handle heating (RH terminal) and cooling(RC terminal) separately is required for proper unitoperation. If a jumper is provided on the thermostatbetween the RH and RC terminals, it MUST be re-moved prior to unit start-up.

3 0

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Variable Vo lume / Variable Te mpe rature(VVT) Systems

V V T S ystem s are dedicated to total building com fort.C arrier therm ostats, zon e dam p ers, and H V A C (heating ,ven tilatin g, an d air co n ditio n in g) eq uip m en t w ith facto ry-m o un ted A p o llo direct digital co n tro ls co n tin ua lly m o n ito ran d ad justth e eq uip m en to p eratio n to en sure un in terrup tedan d p erson alized com fort for allo ccup an ts.

T h ro ug h th e use o f C arrier’s com m un icatin g electro nA p ollo con trols, V V T S ystem s are able to p rovide th e comfo rt o f a m ultip le zon e system w h ile usin g th e in stallatioop erating ,an d m aintena nce econ om ics of sing le zone equim en t...virtually p utting an en d to the cost vs. com focom p rom ise.

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Application data

Outdoor installation — U nits ap p roved for ou tdo or in-stallatio n o n ly.

Ductwork — D uctw ork sho uld be attached to the curb onall un its. In terio r in stallatio n m ay p ro cee d b efo re u n it is setin p lace on roo f. If ductw o rk is to be attached to un it, dono t drillin con den sate drain p an area — leaks m ay result.F ield-fab ricated con cen tric du ctw o rk m ay be co n n ected assho w n below on un its w itho ut electric he at.

N O T E : A 9 0 -d e g re e e lb o w m u st b e in s ta lle d o n th e su p p lydu ct o n un its equ ip p ed w ith electric h eat.

Thru-the-curb service connections — R o o f cu rb co n -ne ctio ns allow eld p ow er w ires an d con tro lw ires to en terthrou gh the roo f curb op ening .

Thermostat — U se of 2 -stage heating and coo ling ther-m o stat is req uired .

T h e 5 0 H J Q u n its h a v e 2 in d e p e n d e n t c o n tro l c irc u its,each w ith a differen t tran sfo rm er. D ue to th is ad van ced de-sign , a th erm o stat w ith th e cap ab ility to h an dle h ea tin g (R Hterm in al) an d co o lin g (R C term in al) sep arately is req uiredfor p rop er unit o p eration . If a jum p er is p rovided on theth e rm o s ta t b e tw e e n th e R H a n d R C te rm in a ls, it M U S T b e

rem o ved p rio r to un it start-up .Heating-to-cooling changeover — A ll un its are auto -m atic ch an geo ver fro m he atin g to coo ling w h en autom aticc h a n g e o v e r th e rm o s ta t a n d su b b a se a re u se d .

Airflow — U nits are draw -th ru o n coo lin g an d m echa nicalh ea tin g an d blo w -th ru o n electric resistan ce h ea tin g.

Maximum airflow — T o m in im ize th e p o ssibility o f co n -den sate blow -off fro m evapo rator, air ow th rou gh un itssh o u ld n o t e x ce e d 5 0 0 c fm / to n .

Minimum airflo w — F o r c o o lin g , m in im u m a ir o w is3 0 0 c fm / to n .

Minimum am bient coo ling o peration tempe rature —

U nits are design ed to op erate ato utdo o r tem p eratures do w nto 4 0 F.T o o p erate atlow er o utdo or tem p eratures,see p ricep ages for ap p rop riate accessory com bination s for sp eci cap p licatio n s, o r con tact yo ur lo cal C arrier rep resentative.

Internal unit design — D ue to C arrier’s in terna l un itdesign (draw -th ru o ver th e m o to r), air p ath , an d speciallydesign ed m otors, the full ho rsep ow er (m axim um con tinu -ou s bh p an d w atts) listed in the n otes follow ing each Fa nP erform an ce table can be utilized w ith con den ce.

U sin g C a rrier m otors w ith the values listed in the F anP erform an ce D ata tables w i l l n o t resu lt in n uisan ce trip p in gor p rem ature m otor failure. T he un it w arranty w ill no t beaffected.

CONCENTRIC DUCT AIR DISTRIBUTION

NOTES:

1. Do not drill in this area, damage to basepan may result in waterleak.2. A 90-degree elbow must be provided in the supply ductwork to

comply with UL (Underwriters’ Laboratories) codes for use withelectric heat.

CONCENTRIC DUCT DETAILS

Shaded area indicates block-off panels.

NOTE: Dimension A, A and B, B are obtained from field-suppliedceiling diffuser.

Concentric ducts may only be installed on units withoutelectric heat. Personal injury or unit damage may result.

3 2

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Guide specifications

Packaged Rooftop Heat Pump Unit withElectric Heat Option, Constant VolumeApplication

HVAC Guide Spe cifications

S ize R a n g e : 1 3 a nd 1 5 t o ns , N o m ina l Co o l ingC a rrie r M o d e l N u m b e r: 5 0 H J Q

Part 1 — General

1 .0 1 S Y S T E M D E S C R IP T IO NU nitis an ou tdo or,roo ftop -m ou nted, heat p um p un itu tilizin g rec ip ro ca tin g,sem i-h erm etic co m p ressor(s)fo rh eatin g an d coo lin g du ty.S up p ly air is disch arged ver-tically o r h o rizo n tally (w ith h o rizo n tal sup p ly/ retu rna d a p te r a sse m b ly o r ro o f c u rb ) a s sh o w n o n c o n tra c tdraw in gs.

1 .0 2 Q U A L IT Y A S S U R A N C E

A . U nit shallb e rated in accordan ce w ith A R I S tand ard3 4 0 a n d sh a ll b e d e sig n e d in a cc o rd a n c e w ith U LS ta n d ard 1 9 9 5 .

B . U n it sh a ll b e E T L a n d E T L , C a n a d a liste d .

C . R o o f c u rb sh a ll b e d e sig n e d to co n fo rm to N R C A

S tan da rds.

D . Insulation an d adh esive shallm eetN F PA 9 0 A requ ire-m e n ts fo r fl a m e sp re a d a n d sm o k e g e n e ra tio n .

E . U n it c a sin g sh a ll b e c a p a b le o f w ith s ta n d in g A S T MB 1 1 7 5 0 0 -h o u r S a lt S p ra y T e st.

F. U n it shallcon form to IS O 9 0 0 2 m anu facturing qual-ity stan da rd.

G . U n it sh a ll b e d e sig n e d to co n fo rm to A S H R A E 1 5(latest revisio n ).

1 .0 3 D E L IV E R Y , S T O R A G E , A N D H A N D L IN G

U n it shall be sto red an d h an dled p er m an ufacturer’srecom m en dation s.

Part 2 — Products

2 .0 1 E Q U IP M E N T (S T A N D A R D )

A . G eneral:

T he 5 0 H JQ un it sha llb e a factory-assem bled, sing lep iece heat p um p un it. C o ntained w ithin the un it en-clo sure sh allbe allfac to ry-in stalled w irin g ,p ip in g ,c o n -tro ls, refrige ran t ch arge (R -2 2 ), an d spe cial fea turesreq u ired p rio r to eld start-up .

B . U n it C a b in e t:

1 . U n itcab in etsh allbe co n structed o fg alvan ized steel,p recoated w ith a baked enam el nish.

2 . In do o r blo w er com p artm en tin terior surfaces sh all

be insulated w ith a m in im um 1⁄2-in . th ick, 1 .0 lbden sity co ated , exible berglass in sulatio n , n eo -p rene coated on the air side.

3 . C a b in e t p a n e ls sh a ll b e e a sily re m o v a b le fo rservicin g .

4 . F ilters sh allbe accessible th ro ug h an access p an el.

5 . T h e m a n u al d a m p e r sh a ll p e rm it u p to 2 5 % o u t-do o r air fo r year-ro un d ven tilatio n .

6 . H o les sha ll be p rovided in the base rails fo r rig-gin g sha ckles to facilitate o verh ea d rigg in g .

7 . U n it sha llh ave a facto ry-in stalled in terna lco n desate drain con nection and a slop ed con den sate p a

C . F a n s :

1 . In d o o r B lo w e r:

a. T he fan shall be belt driven w ith an adjusab le m o to r p ulley. T h e stan da rd fan drive shh ave a facto ry-in stalled lo w -m ed iu m statp ressure fan drive. T h e alterna te fan drive o

tio n sha ll h ave a fac to ry-in stalled h ig h statp ressure fan drive.

b . T h e fa n w h e e l sh a ll b e m a d e fro m ste e l, bo f th e do ub le in let typ e w ith fo rw ard-curveblad es,a n d h ave a corro sio n -resistan t n isIt sh all also be dyn am ically ba lan ced.

c. F an bea rin gs sh allbe o fth e p illo w blo ck,b abe arin g typ e (0 1 6 o n ly).

2 . T he ou tdo or fan shallbe of the direct driven p rp eller typ e w ith co rro sio n -resistan t b lad es riveteto co rro sio n -resistan t stee l spide rs. It sha ll be dn am ically ba lan ced an d discha rge air vertically.

D . C o m p resso r(s):

1 . T h e recip ro catin g sem i-h erm etic com p resso rsha ll h ave facto ry-in stalled ex tern al sp rin g vibrtio n iso latio n .

2 . T h e facto ry-in stalled cran kca se h ea ters sha ll p rven t refrig eran t dilu tio n o f o il.

3 . S h allbe o n m ech an ically an d electrically in dep ede n t circuits (0 1 6 o n ly).

4 . T he size 0 1 4 un it sem i-h erm etic co m p resso r shabe eq uip p ed w ith an electric un lo ad er fo r cap acico n tro l.

E . C o ils:

Ind oo r and ou tdo or coils shallhave alum inu m or co

p er p late ns m echan ically bo nd ed to seam less, itern ally en ha n ced, cop p er tube s o f th e face sp lit dsig n w ith all jo in ts brazed .

F. R efrigerant C o m p on ents:

R efrigeran t circuit co m p o n en ts shall in clud e:

1 . Filter driers an d xed exp an sio n devices.

2 . S ervice g age con n ectio n o n suctio n ,discha rge, anliq u id lin es.

3 . S uctio n an d disch arge service valves.

4 . R eversin g valve.

5 . A ccum ulator.

G . F ilter S ectio n :S tan da rd lter sectio n sha llco n sisto f2 sizes o ffacto rin stalled , 2 -in . th ick th ro w aw ay be rglass lters co m m ercially av ailab le sizes.

H . C o ntro ls an d S afeties:

1 . U nit C o ntrols:

C o n tro ls sha ll p erfo rm th e fo llo w in g fun ctio n s:

a. C ap acity con tro l (2 -step ).

b. E con om izer op eration (op tio na l).

c. S elf-co n tain ed lo w -vo ltag e co n tro l circuit.

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Guide specifications (cont)

d. U n itshallinco rp o rate an o utdo or coildefro stsystem to p reven t excessive fro st accum ula-tion during heating duty, and shall be con -trolled as fo llo w s:1 ) D efrost sha ll be in itiated on th e basis of

tim e an d co il tem p erature.2 ) A e ld -se tta b le (3 0 , 5 0 , o r 9 0 -m in u te )

tim er sh allac tiva te d efro stcy cle o n ly ifc o iltem p erature is lo w en ou gh to in dicate ah eavy fro st co n ditio n .

3 ) D e fro s t c y c le sh a ll te rm in a te w h e n d e -frost therm ostat is satis ed and shallh a v e a p o sitiv e te rm in a tio n tim e o f1 0 m inu tes.

2 . S afeties:

a. S h o uld an y o fth e fo llo w in g safety devices tripand shu t off the com p ressor, the un it shallin co rp o rate a solid-state co m p resso r lo cko utw h ich w illp ro vide reset cap ab ility at th e spa ceth erm o stat:1 ) C o m p ressor overtem p erature,

overcurrent.

2 ) L o w -p ressure sw itch.3 ) H igh -p ressure sw itch.4 ) F reeze p ro tectio n th erm o stat.

b. H eatin g sectio n shallbe p ro vided w ith th e fo l-lo w in g m in im um p ro tectio n s:1 ) H igh -tem p erature lim it sw itch es.2 ) O vercurren t p ro tectio n .

I. O p eratin g C h aracteristics:

1 . U n it shall be capable of starting and run ning at1 2 5 F a m b ie n t o u td o o r te m p e ra tu re e x ce e d in gm a x im u m lo a d c rite ria o f A R I S ta n d a rd 3 4 0 .

2 . U n it sh allh ave stan dard con trols an d w illo p eratein coo ling to 4 0 F.

3 . C om p ressor shallbe capable of op eration in heat-in g d u ty d o w n to − 2 0 F a m b ie n t o u td o o r-a irtem p erature.

4 . U n itshallbe cap able o fsim ultan eo us he atin g dutyan d defrost cycle op eration w h en usin g electrich eaters in dicated in S ectio n L , S p ecial F eatures.

J. E lectrical R eq uirem en ts:

A llun itp o w er w irin g shallen ter un itca bin et at a sin glelo ca tio n .

K . M o to rs:

1 . T he com p ressor m otors shallbe of the refrigerantcoo led typ e w ith intern al the rm al o verloa d p ro-

tectio n an d shall use a calibrated circuit breakerfo r elec trica l p ro tec tio n .

2 . A llfan m o to rs sha llh ave p erm an en tly lub ricated,sealed be arin gs an d in h eren t auto m atic resetth er-m alo verlo ad p ro tectio n o r m an ua lresetcalibratedcircu it b reak ers.

3 . A llm oto rs sh allh ave C lass B in sulatio n.

4 . A ll T -fra m e m o to rs (5 h p a n d la rg e r) sh a ll m e e tE P C A (E n ergy P o licy a nd C on servatio n A ct)m ini-m um ef ciency stand ards, effective O ctob er 2 4 ,1 9 9 7 .

L . S p ecial F eatures:

C ertain stan dard features are n o ta p p licable w h en th efeatures design ated * are sp eci ed. Fo r assistan ce ina m e n d in g th e sp e c i c atio n s , c o n ta ct y o u r lo c a lC arrier S ales of ce.

1 . R oo f C urbs (H o rizon tal an d V ertical):

a . T h e ro o f c u rb s sh a ll b e fo rm e d o f 1 8 -g a g esteel w ith w oo d n ailer strip an d sha ll be ca-

p ab le o f sup p o rtin g un it’s en tire w eigh t.b. B o th h o rizon tal an d vertical sup p ly/return

curbs sha ll be ava ilab le.

c. S eal strip (3⁄8 in . th ick) shall be p ro vided toap ply to the roo f curb.

2 . H o rizon tal A dap ter:

Includes factory-assem bled adap ter and ductw h ich substan tially im p ro ves in do o r-fan staticp erfo rm an ce.

* 3 . In te g ra te d E c o n o m ize r:

a. Integrated typ e capab le ofsim ultan eou s econ o-m izer and com p ressor op eration to p rovide

coo lin g w ith o utdo o r air.b. E quip p ed w ith low -leakage dam p ers no t to

e x ce e d 3 % le a ka g e a t 1 .0 in . w g p re ssu red ifferen tial.

c . C a p a b le o f in tro d u c in g u p to 1 0 0 % o u td o o rair.

d. E quip p ed w ith dry-bulb tem p erature con trolto go vern econ om izer chan geo ver.

e . E q u ip p e d w ith a sp rin g -re tu rn d a m p e r m o -to r w h ic h sh a ll c lo s e th e d a m p e rs o n p o w e rlo ss.

f. S h a ll b e e q u ip p e d w ith a m ix e d -a ir se n s o r(M A T )w hich sh allcon tro lth e econ o m izer toa 5 5 F c o n tro l p o in t.

* 4 . H e ad P re ssu re C o n tro l P a ck ag e :

P ackage shall consist o f an accessory ou tdo or-air p ackage an d a so lid-state con trol w ith ou t-do o r co iltem p erature sensor fo r co n tro llin g o ut-d o o r fa n m o to r sp e e d to m a in ta in c o n d e n sin gte m p e ra tu re b e tw e e n 9 0 F a n d 1 0 0 F a t lo w o u t-do or am bient tem p eratures.

* 5 . P o w er E x hau st P ackag e:

P ackag e sh all in clud e a p ro p eller-style exh austfan, 1⁄2 h p , 2 0 8 /2 3 0 -4 6 0 v (factory-w

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