Carrier MODU-PAC 50DF User Manual

.................. 'Й

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Electric Heating: 182,500 to 808,000 Btuh Electric Cooling: 220,000 to 753,000 Btuh

Sirag

là

pi^eE)

'"((Doieg umts

in® 1Ш“,

® I 1

Air Distribiitioin S|/steni

Jr MociM-rac

Electric Cooling: 220,000 to 744,000 Btuh

Versatile rooftop units — for constant or

Moduline® for VAV system

variable air volume applications in the 20- to 60-ton range

NOW — with energysaving features for years of outstanding performance

• SOLID-STATE CONTROL LOGIC

• INTEGRATED ECONOMIZER/MECHANICAL COOLING

• LOW-LEAKAGE DAMPERS

• INTERTWINED COILS

• TWO-SPEED INDOOR " FAN OPTION

' Carrier Corporation 1982

Form 50DF-2P

FEATURES AND BENEFITS OPTIONS AND ACCESSORIES PHYSICAL DATA BASE UNIT DIMENSIONS ACCESSORY DIMENSIONS SELECTION PROCEDURE PERFORMANCE DATA

Cooling Capacities Heating Capacities Optional Equipment Resistances Indoor Air Fan Pulley Data

Fan Performance ELECTRICAL DATA CONTROLS

Operating Sequence

Electrical Protection TYPICAL WIRING SCHEMATIC APPLICATION DATA TYPICAL PIPING AND WIRING GUIDE SPECIFICATIONS

50DF

3 4,5 6 7 8 9

9,10

10 10 11 12

13-15

16 17

18 19 16

20,21

50DF Modu"Pac@

22-24

24 25 26 27 28

29,30

32 32 32 31

32 33

—

50DF

High quality features assure easy installation — plus performance and energy savings

Solid-state components for precise system control — Units contain a

solid-state control system that pro vides maximum operating economy. The “brain” of the system is a logic panel that offers 2-stage heating and cooling modes based on space re quirements. Panel also is the logic net work that coordinates operation of the economizer, energy management and two-speed indoor fan options.

Solid-state components require no calibration, are easily replaced and have long operating life.

Practical curb design for low in stallation costs — The curb supports

unit on the roof. Eliminates special steel support frames and assures a low roof silhouette. Weatherproof enclosure eliminates need for a rooftop adapter or roof openings that could be sources of troublesome leaks. All utilities enter unit within the curb; saves time and reduces installation costs. A wood nailstrip is also included.

Adaptable duct connections — The

Carrier design provides large duct openings that permit low airflow veloci ties and even air distribution. Bottom supply and return ductwork is easily installed. Concentric ductwork with diffusers also may be connected to the 20-, 25-, and 30-ton units.. .with no internal modifications.

For convenience, alternate side supply

and return openings are provided for horizontal duct applications. Simply relocate side supply and return panels, place them in the bottom openings, relocate one interior panel and the unit is quickly converted for side duct con nection. An accessory conversion kit is required for units with economizer.

Factory-installed filter rack includes 2-in. filters.

115-volt convenience outlet — An on-the-job power source for service light or hand tools.

Pre-installed tracks for hydronic coil application. Factory installed on units without electric heat option.

Weather Armor cabinet stands up to the weather. Cabinet design exceeds UL and Carrier rain test requirements. Units keep attractive appearance for years — even in salt air or heavy in dustrial environment.

Time Guard® circuit — Compressor will not short cycle on a safety device or power interruption. Starts outdoor air fans 15 seconds before compressor to minimize solar heat buildup and reduce start-up load.

Single-location power connections

— Unit is factory wired with all heating and cooling power circuits internally routed to a terminal block in one com partment. Some units, with higher heat/ cool ratios, have 2 terminal blocks. No need to route expensive wiring to separate heating and cooling power locations. Saves time, money and labor.

Fixed-speed evaporator fan drive —

less vibration than variable-speed drive. Extends belt life and minimizes drive noise.

Manual damper, on standard units, can be preset to admit as much as 25% outdoor air for year-round ventilation.

Cfficurr

8REA:

LOGIC PANEL

Built-in convenience — Quick-release

access panels, slide-out filters and plug in relays simplify routine inspection and maintenance.

Carrier-built intertwined refrigerant coils have staggered copper tubes with

mechanically bonded fins to ensure optimum heat transfer. Intertwined design provides cooling of the full air stream with minimum compression.

Direct-drive condenser fans are factory lubricated. Vertical discharge moves air quietly and efficiently.

Carrier compressors have factoryinstalled service valves, crankcase heaters, reversible oil pumps, mufflers,

overloads in the control box and internal motor protection. Liquid line sight glasses and filter driers are also included.

Low-ambient temperature capa bility permits all units to operate at out

door temperatures as low as 35 F.

CON\gv(IENCE logic LOW VOLTAGE

OUTLET , PANEL TERNHNAL BLOCK

CARRIER SERVICEABLE HERMETIC COMPRESSORS

«LEAD COMPRESSOR (Uses Suction Pressure)

Factory-installed options and

field-installed

accessories offer flexibility to application

Modulating outdoor air control package (economizer) — Even when

outdoor air temperatures are low, many installations still require cooling. The economizer uses the cool outside air to provide this cooling. Saves energy, reduces compressor wear and tear and lowers operating costs.

The economizer contains these

energy saving features:

• Electronic control logic balances the conditioned space demand against the cooling system output. Ensures that the economizer modulates to correct position or closes to minimum position to maintain a stable temperature in the conditioned space. Never too much or too little cooling.

The control logic also integrates economizer cooling with mechanical cooling. If outdoor enthalpy permits, economizer acts as first stage of cooling. If conditioned space requires more cooling, economizer works in conjunc

tion with mechanical cooling to maintain required indoor temperature.

The integrated system supplies only the amount of mechanical cooling necessary.

• Low-leakage dampers limit infiltra tion. Rated by the manufacturer at 3% with 3-in. wg pressure differential.

• Spring return damper motor auto matically closes the outdoor air dampers in the event of a power failure. (Option or Accessory)

Two-speed indoor fan option —

Substantial energy cost savings can be

obtained because fans automatically

operate at low speed during most cool ing operating hours. High speed is used only if and when necessary to maintain comfort conditions.

A 4-stage electronic logic panel selects the most efficient fan speed and compressor stage to satisfy room de mand. Economizer performance is optimized by utilizing low-speed opera tion except when space conditions require the additional capacity of high speed “free cooling”.

The two-speed option is available in either standard or alternate motor sizes. All control and power wiring are factory installed; thus, costly field wiring and adjustments are not necessary.

The two-speed fan motors are 2 winding (4 pole/6 pole) with rpm’s of 1760/1170.

Power exhaust — Coupled with the economizer, up to 75% of the return air can be exhausted. Also, eliminates over-pressurization of the building. Designed for use with bottom duct connection arrangements. Used only

with economizer. (Option or Accessory) Electric heaters — Three factory-

installed and one field-installed heating capacity are available. Factory wired for 2-stage heat. Outdoor air thermostats can be added to provide additional stages as required. Branch circuit pro tection is built in on each unit. (Option or Accessory)

Bag filter — Extended surface media provides high filtration of 50% (NBS Dust Spot Test). Filter frame permits use of field-supplied bag filters to pro

most any

vide up to 95% filtering efficiency. (Option only)

Alternate indoor fan motor and drive provides increased perform

ance for application requirements beyond standard unit operation range. (Option only)

Energy management kit—Additional energy savings occur thru the use of the multi-feature energy management kit which contains a setback/setup module, a 7-day programmable clock and morning warmup thermostat.

During unoccupied periods, the set back/setup module provides a select able amount of heating setback and either cooling shutdown or a selectable amount of cooling setup

The 7-day clock controls unit opera tion in and out of the setback/setup modes. Clock contains a 10-hour spring carryover for continuous operation during power failures. Re-programming is not necessary.

A 5-hour bypass switch provides unit operation during unoccupied modes. The clock and bypass switch are con tained in an attractive remote control panel which installs in a convenient location. Six status lights on the panel indicate system operating modes.

The morning warmup thermostat senses return air temperature and saves energy by keeping the outdoor air damper closed until morning warmup is complete. Avoids using energy to warm cold outside air. (Option or Accessory)

REMOTE CONTROL PANEL

(Control Box)

SETBACK/SETUP MODULE

7-DAY CLOCK

Barometric relief damper operates automatically to help exhaust excess air during economizer operation. Ac cessory comes partially assembled for easy installation.

Roof curb supports unit and frames roof opening. Provides a strong, water tight interface between unit and roof.

Once curb is set in place, the unit may be rigged at any time — no need to schedule around the roofer. Design complies with National Roofing Contractors Association (NRCA) requirements.

Outdoor air thermostat allows addi tional staging of electric heat. Multiple thermostats permit as many stages of control as there are heaters in the unit.

Suction pressure unloader package

— Additional staging, beyond the stand ard 2 stages of capacity control, can be accomplished with field-installed suc tion pressure actuated compressor unloaders. (024 size is excluded, uses a standard electric unloader.)

Motormaster® head pressure con trol modulates the speed of outdoor air

fan motor to maintain correct con densing temperature at low outdoor air temperatures. Permits operation to

-20 F, if required.

Electronic temperature sensing —

Three electronic sensing/transmitting devices are available to meet your specific application requirements. Each transmitting device contains dual (heating/cooling) set point adjustment levers concealed under a locking cover. Light emitting diodes (LED’s), also con cealed under the cover, allow diagnostic checkout of control system from the transmitting device. The choices are:

• Thermostat with integral sensor — A traditional application. Both the temperature set points and the sensing device are contained in one device installed in the conditioned space.

• Transmitter with remote sensor —

The transmitter contains the tempera

ture set points and LED’s under its cover. In this application, a remote wall-

mounted sensor is installed in the con ditioned space and the transmitter is installed in a restricted-access area. Eliminates unauthorized adjustment of

conditioned space temperature.

• Thermostat or transmitter on subbase

—provides manual COOL-AUTO.-

HEAT-OFF system switching and AUTO.-ON fan switching from a con venient location. Recommended for units without energy management kit.

fsODFl

FANS

MOTORS

____

PO’WER EXHAUST FANS AND MOTORS

THERMOSTAT OR

TRANSMITTER

REMOTE SENSOR

UNLOADER PACKAGE MOTORMASTER CONTROL

I 50DF~

Physical data

UNfT SOOF OPERATING WEIGHT (lb)

Base Unit Economizer 150 175 200 225 250 Roof Curb

COMPRESSOR

No ..Type No Cylinders (ea)...Rpm Capacity Steps (%) (Std)

With Accessory Unloaders

REFRIGERANT CHARGE Type 22; Controlled by Thermostatic Expansion Valve

Sys 1...Sys 2 (lb)

OUTDOOR AIR FANS

No ...Diameter (in.) Nominal Cfm Motor Hp...Rpm

CONDENSER COIL

Rows.. Fins/in. Total Face Area (sq ft)

INDOOR AIR FANt

No. ...Size (in.)

Max Allowable Rpm Nominal Cfm Standard Motor and Drive

Motor Hp Motor Frame Size

Single-Speed

Two-Speed

Fan Pulley Pitch Diam (in ) Fan Pulley Bore Single-Speed Motor Rpm Two-Speed Motor Rpm Motor Pulley Pitch Diam (in.)

Pulley A Pulley B

Resulting Fan Rpm

Single-Speed with Pulley A...B Two-Speed with Pulley A.. B

Alternate Motor and Drive

Motor Hp Motor Frame Size

Single-Speed Two-Speed

Fan Pulley Pitch Diam (in.)

Fan Pulley Bore Single-Speed Motor Rpm Two-Speed Motor Rpm

Motor Pulley Pitch Diam (in.)

Pulley A

Pulley B

Resulting Fan Rpm

Single-Speed with Pulley A...B Two-Speed with Pulley A...B

EXHAUST FAN MOTOR Qty...Hp EVAPORATOR COIL

Rows...Fins/in. Total Face Area (sq ft)

ELEC RESISTANCE HEATERS

Heat:Kw

INDOOR AIR Filters

No .. Size

Standard; 2-In Throwaway

Bag Type; 12-in. (Opt)

02A

3000

125 150

1 06E 2 060 4 1750 6 1750 50,100 60,100 50,100

—

36 0 —

2 30

14,000

1 1050 1 1050 1 1050 1 1050 1 1050 1 1150

3 139 3 139

31 1

2 15x11 2 15x15

1300

8,000 10,000

5 (460V)

7-1/2 (208-230V)

184T (460V)

213T (208-230V)

215T (460V)

254T (208-230V)

106 106

1 -3/16

1750

1750/1170

65 60 56

1073 991

1073/751

991/661 925/617

7-1/2

213T 254T

1-3/16

1750 1750 1750 1750 1750

1750/1170

53 5 3 56 56

1159 1225 1159/773 .

1225/817 1225/817

1 3

4 15 15 1 177

37,55,91

6 20x25 6 15x25 3 12x24 4 .12x24 3 24x24 4. .24x24 5. 24x24 6 24x24

028

3700 4400

19,38,57,100 16,33,50,100

23 75 18 25 29 0 29 0 37 0 37 0

2 30 3 .30 3 30 4 30

14,000 21,000 21,000 28,000 31,000

38.0

1300 1300 1300 1300

7-1/2

21 3T 21 5T 254T 256T 254T

1-3/16

1750 1750 1750 1750

1750/1170 1750/1170 1750/1170

65 6 5 65 6 5 5 6

1073 925 1073 925 1073 925 1073. 925 1225 1312

1073/751. 1073/751

215T 254T 256T 284T 256T 284T 286T 286T

80 80 80 80

1-3/16 1-11/16 1-11/16 1-11/16

1750/1170

1159 1225 1159 1225 1159 1225 1159 1225

1159/773 1159/773 , 1159/773 1159/773

1 3 1 3 2 3 2 3 2. 3

4 15

Open Nichrome Wire Elements with Multiple-Stage Control

55,73,110 55,91,128

18. 16x25

034

175

Serviceable, Hermetic

2 06D

6 1750

Direct Driven, Propeller Type

3 158

49 0

Belt Drive, Centrifugal Type

3 15x9 4 15x9

12,000

10 15 20

256T 284T 286T 286T

106 106

1-11/16 1-11/16 1-11/16

5 6

925/617 925/617 991/661

15 20 25t 30t

1750/1170

53 5,3 53 56 5 6

1225/817 1225/817

4 15 24 8

9, 20x25 12 16x25

5.. 12x24

044 054 064

5406

200 225

2 06E 4 1750 50,100

25,50,75,100

3 158 3 158

61 0

16,000 20,000

1073/751

1750/1170

4 15 4 15 4 139 30 2 35,4

73,110,165

27.. 16x25

6. 12x24

20,40,60,80,100

1073/751

6100 6485

2 06E* 4,6 1750

60,100

53 0 42 0 81 0 81 0

81 5

4 15x11

106

1750/1170 1750/1170

1750/1170

1225/817

91,146 91,146

9 20x25 9 20x25

21 16x25 21 16x25

7 12x24 7 24x24

250 225

2 06E 6 1750 50,100

16,33,50,67,83,100

4 30

4 158

81 25

4 15x11

1450

24,000

284T

1-11/16

1750

1225/817

1312/875

286T

—

1-11/16

1750

1750/1170

1450 —

1450/967 ,

35 4

*Unit contains one 06EA250 and one 06EA275 compressor fStandard fan motor supplied with standard fan drive pulleys and belts;

alternate fan motor supplied with alternate fan drive pulleys and belts Other combinations are field supplied Pulley A is installed in unit; pulley B is shipped with unit (024-054)

itDue to large frame size, the 25 hp, 208-230 volt and 30 hp motors are avail

able in single speed only

**The 50DF064 alternate drive Is supplied with Pulley A only

1182

Base unit dimensions

ELECTRIC HEATER ACCESS

panels

50DF

OUTDOOR AIR FANS:

2- 024.028 3- 034,044

4- 054, 064

ALTERNATE CONTROL WIRE

OPENING CONDUIT

ALTERNATE PIELO POWER WRING ICOOLiNG ONLY UNIT)

a®OOR AtR FAN AND FiLTEB

ACCESS PANELS

©»«PRESSOR

END

INDOOR AIRFLOW

DIMENSIONS (ft-in.)

UNIT

50DF

Cenified dimension drawings available on request.

NOTES;

1. Allow 12 ft above unit 8 ft on filter access pane! erxland 4ft on remaining sides of unit for

2 For smaller clearances, contact Carrier. 3 Refer to Roof Curb dimensions for details of roof openings

024

10-10

A 8 C

4-11

0-10-1/4

0- 9-7/8 0- 9-7/8 ¡0- 9-7/8 1- 1-1/4

J K

airflow arwJ service clearance.

— —

3-1/2" NPT

2- 4 2- 4 ; 2-10 2-10 2-10

6- 1-1/2 9- 0 ; 11- S :14-10-1/2

—

028 I 034 I 044

13- 8-1/2‘1 17- 1 ['20- 6-1/2

6-11 ■ 9-0 i 11- 0

0-10-1/4 i 0-10-5/16 0-10-5/16

4" NPT i 4" NPT 4“ NPT <ea)

— 1 — ¡4-7

7-3-1/8

4-11

— — 0- 9-3/16

— i — 1- 8-1/4

— Î — 1 5- 8-1/2

054

24-11-1/2 24-11-1/2 \

13- 0-1/2

0-10-5/16 0-10-5/16 1

1- 3 0- 9-1/8 1-10-11/32

4" NPT (ea)

19- 3-1/2

7- 7-1/2

5-10

19- 3-1/2

9- 4-1/2

Q04 AIR INTAKE HOOD

1- 3 1

2-10

6-10

OPTIONAL

13- 0-1/2 li

0- 9-1/8 \

1-10-11/32 V

4" NPT (eal V

DRAIN

2|" DiAM U"

*^MPT C0NN.,i.

alternate drain 2~“ KO <r HURT

MAIN POWER WIRE OPENING <J) CHEATING/ COOLING UNIT', (2ON 044,054 AND 064)

OPTIONAL JS-034

EXHAUST HOO0SÌ4-O44

CONN. iNStOE)

ALTERNATE POWER WIRE

OPENING 3^"NPT GCATING/COOUNG

" UNITK2 ON

044.054 AND

064)

ENTHALPY CONTROL

LOCATION

{5-054,064

-024,028

50Df1

Accessory dimensions

DUCT WORK (FIELD SUPPLIED) MUST BE NOTCHED TO CLEAR SUPPORT

NOT USED ON 024.028 (LOCATE PER DIMENSIONS)'

ROOF CURS ASSEMBLY

NOTE: CURB MUST BE LEVEL SO THAT UNIT DRAINS FUNCTION PROPERLY SEE BASE UNIT INSTALLATION INSTRUCTIONS FOR LEVELING TOLERANCES

■ 5*i"

V1EW8-B

VIEWA-A

DIMENSIONS (ft-in.)

RIGID INSULATION (FIELD SUPPLIED) \

FIELD

POWER SUPPLY

HEAT UNITS

TYPICAL 4 SIDES

ILTi^v^r-UNIT BASE

Jr \ RAIL

WOOD NAILER (FACTORY SUPPLIED)

COUNTER FLASHINS (FIELD SUPPLIED)

ROOFING FELT / (FIELD SUPPLIED)

ROOFING MATERIAL (FIELD SUPPLIED)

CANT STRIPiFIELOSUPPl

.lEO)

UNIT A 50DF024 ;10- 0-1/4 50DF028 ;12-10-3/4 : 6-11 50DF034 Ì16- 3-1/8

; 8 ; 4-n

; 9- 0

SU^ASE

c D E

: „ i “

; 4-4

0-6-1/4 0-6-1/4

0-6 0-8-1/4 0-6-7/8 i -

F : G

0-5-1/8 : —

0-5-1/8 i -

UNIT 50DF044 S0DF054 50DF(^

REMOTE CONTROL PANEL

(Control Box)

A B i c O E F

19-8-1/4 11-0 15-4 24-1-3/4

13-0:6-4

THERMOSTAT/TRANSMITTER

0-6 :0-6-1/4 ;6-9-1/4 0-6 10-6-1/4 iO-6-3/4

0-7

0-7-11 /32

1182

SctectlOîî procedure (with example)

1 Determine cooling and heating requirements at design SHC of 236,000 Btuh. Calculate SHC correction, if

conditions. required, using notes under cooling capacities tables

Given III Select heating capacity of unit to provide design condi- Required Cooling Capacity (TC)

.......................

300,000 Btuh ^ion requirement.

Sensible Heat Capacity (SHC) ............................ 236,000 Btuh In the Heating Capacities table, note that unit 50DF028 with

Required Heating Capacity

Condenser Entering Air Temperature ........................... 95 F c j j •

Indoor Air Temperature ....

Evaporator Air Quantity......................................

External Static Pressure Electrical Characteristics (V-Ph-Hz)

................................

...................

80 F edb, 67 F ewb Determine fan speed and power requirements at design

.......................................

..............

240,000 Btuh 73 kw heaters will provide 249150 Btuh

10,000 cfm conditions.

1 80 in wg f^an Performance table at 10,000 cfm and 1 80 in wg

460-3-60 ^^at the fan speed is 1210 rpm and the power required is

II Select unit based on required cooling capacity >^P

Enter Cooling Capacities table at condenser entering ^ Select unit that corresponds to power source available, temperature of 95 F Unit 50DF028 at 10,000 cfm and 67 F The Electrical Data table shows that a 460-3-60 unit is available, ewb will provide a total capacity of 308,000 Btuh and a

Performance data

COOLING CAPACITIES

50DF024

Temp (F)

Air Ent

TC 266

SHC 132 165 197 KW 21.3 20.1

TC 250 228 206

SHC KW 22.6 1 2l;6 20.1

TC 243 221

100 SHC 124

KW 23 2 22 2 TC 236 214

105

SHC

TC 227 207

110 SHC 119 151

6000/.042

127

122

23 9 22 6 21 4

24 8 23 2

50DF034

Temp (F)

Air Ent

Cond

85 SHC 214

SHC 203

100

SHC

105

110

10,000/.068 12,000/.082 | 13,500/ 088

72 67

412 380

KW 32 0

392 360

KW 34 7

383 200 255

35 9

373 344 SHC 197 KW

37 4

354 SHC 191 KW

39 3 37 8

67 62

243 220

19 0

159 191

201

157 189

20 7

195 247

154 186

188 183

22 0 25 3

349 424

266

321

30 7 29 3

332

258 315

33 4 31 5

352

323 311

34 6

32 6 37 1 316 384

252

308

35 8

34 2

326

299

245

299

36 0 39.9

Evap Air — Cfm/BF

; SOOOAOy

Evap Air — Ewb (F)

278 255 233 283 260 237 147

22.0 20.8 263

142

23.4 255

139 182 212

24 0

137

24.6 238 216

135 176

Evap Air — Cfm/BF

Evap Air — Ewb (F)

72 67

226 292

33.2

401 370 342

218

35.3 33.8 392

214

211

38.1 36 2 363

206

____

{

9000/.070

67 62 72 67 62

191 231 157 206 237

239 218 184

22.0 232 212 260 236 216

22.8 21 4 225

179 206 147 192

23.4

24 1

391 360 430 397 366

31.5

283 342 231 303 347

361 280

35.0 33 2 37 5 35 7 33 6 353 325 390 358

278 325 222 297 330

335 271

38 3 36.6 40 5 38 5 36 9

22.4

19.6

218

20.8 23.7 22.5 21.1

206

22.1 198

198

22 5

62 72 67 62

356 240 311 366

29.7 33.5 31 8 29 9

31.8

334 399 367 339 334

34 6

308 308 215

21.1 243 222

268 153

198

150 196

23 1 21 7

24 3

251 229

23.7

24.9 241

220 202

144

189 202

25 6 24 4

376 347

408

34 4

36 2

227

300 339

38 7

36 8

370

340 291 312

50DF028

Temp (F)

Air Ent

TC 345 318

20.0

222

216

210 210 105

22.3 KW

22 8

SHC 178 229

TC 330 303

SHC

KW 31 2

TC 320 295 271

100

SHC

KW 32 7 30 4

TC 310 286 263 315 SHC 168

TC 300 277 255

110

SHC KW

9000/.058 ! 10,000/.068~T 11,000/ 074

67 62

294

29.5 27.8 26.2

174

171

34 0 31 7 29 9

165

35 3 33 1 31 0

278 185

278 272

223

27.7

29.3

220 268

29 0

216

263 176

255 171

213

50DF044

Temp (F)

Air Ent

85 SHC 281

95 SHC 269 345 419

32 4

100

330

105 SHC 258 333

34 8 KW 49 2 46 6 43 6

312

110 SHC

14.000/051 ^ 16,000/.062 i 18,000/.070

72 67 62

TC 538 499 457 KW 43.7 41 8

TC KW 46.8 43.7 41.0

TC SHC KW 47 9 45 0 42 5

TC 475 436 397

TC KW 50 8 47 9 45 2 51 3

357

436

39 5

506

465 427

491 263 339 411

458 419 380

252

411

450

397

326 380 269

Evap Air — Cfm/BF

Evap Air — Ewb (F)

67 62

351 322

242

28 2 25.4

30.0 335 308 283 339 312 287

236

181

31.4

29.5

325

299 233

178

33 1

30.8 290

229

34.4

32 1 30.2

281

305

226

33 4

35 5

Evap Air — Cfm/BF

Evap Air — Ewb (F)

507

549 295 383 468

45.1 42.5 33.8 516 475 436

285 369 436 301

47.1 44,5 499

460 364

280

45.6

48 3

444

483 275

358

49.8 47 1 443

■427"

'465"

353

48.5 46.0

72 67

355 327 302

298 296 194

283 190

28.2 ! 31.7 30.1 28.5 275

275

29 2

267 267

259 259 180 239 262

31 2

468

41 8 47 5

420 506 466 420

43 1 48 7

405 490 405 290 383

"388‘

388

253 302

30.2

28 4

248

329 303 279 187

245 279

31 3 29 6

33 3

294

318 183

242

24 7 32 3

284

309

35 7

33 6 31 7

72 67

558 515 476

408 476

312

45 4 42 9

524

481 445 394

45 0 42 7

295 390 428

46 2 44 1

450

50 6 47 5 45 2

473 433

377 395

283

51 7 49 0

26.6

287

270 270

30 5

262

40 6

445

428

412 412

395

46 8

ПорП

Performcince data (cont)

COOLING CAPACITIES

60DF054

Temp (F)

Air Ent

18,000/ (^8~T2ao6oZo6S ] 22^000/.073

72 67 62

TC 686 639 596

SHC

361 462

KW 56 3 53 2

TC 650 602 558

95 SHC 347 446 546

KW 61 1

TC 629

57 6

581 538 637

100 SHC 340 438 538

105

SHC 333 KW

59 0 56 3

63 1

608 563 518

432

61 4

51 0

TC 589 540 496

110 SHC

325 423 496 344

—

63 8 60 3

Evap Air — Cfm/BF

Evap Air — Ewb (F)

565

50 4

636 648 376 485

57 6

54.2 50.7 58 6

72 67

604 704 654

392

600

659 610 566 666 616 572

472

363

53 8

61.5 57.8 53.7 62 2 58 8 54 7 589

354

465

63.7

59.8

380 499 572

566

644

545

371

545

56.6 64 3 60 2 56 9

616 570 525 622

518

58 1

457

348

61 6 584

—

597 546

448

64.2 60.5

—

525 365 483

—

604 552

502 502 359 475 510

—

514

54 5

597

493 552

576

62 1

64 8

50DF064

Evap Air — Ewb (F)

55 9

600

59 6

63 4

562

1 09 X cfm

Evap Air — Cfm/BF

67^

72 :

807 ; 744 432 : 553

62.4 j 766;

418 i

66.8' 718

400 521

70.9672

74.9 i

SHC — Sensible Heat Cap TC — Total Cap (1000 Btuh) Gross

684 658

59.4

56.6

70Г'

649

536

635

63.4

60.4 67.2 62.7

663

612 609

67.4

64.3

617

576 576

71.1

68.1

(1000 Btuh)

820

753 696

449

579 683

59.9 57 1

775

714

433

563

726

671

416

546

71 4

67 8

678 624 399 526

75 4

71 6

Temp (F)

Air Ent

Cond

95 SHC

105

115 SHC 365 471 556 384 • 502

BF — Bypass Factor Ewb — Entering Wet-Bulb KW — Compr Mtr Pwr Input

NOTES;

Direct interpolation is permissible Do not extrapolate

The following formulas may be used.

f|db fedb

f|wb

h|wb = hewb

Where:

hewb" Enthalpy of air entering evaporator coil SHC is based on 80 F edb temp of air entering evaporator coil Below 80 Fedb,

subtract (corr factor x cfm) from SHC

21,000 / .070 i 24,000 / .081 26,400 / .090

67 62

TC i

796 731 669 413 521 620

SHC

KW 61 9

TC 751 693 634

TC 709 650 598

SHC 387 487 579 KW 70 3 66.6

58.8

397 505

66 0 62 8

665 609

KW 74 3 70 5 67 0

sensible capacity (Btuh)

Wet-bulb temperature of corresponding to enthalpy of air leaving evaporator coil (h|^p)

total capacity (Btuh)

------------

------------------

612 612

51 6

552

532 532

58 7

510 60 9

660 657

61.1 624

624

65 8

591 591

71 9

OPTIONAL EQUIPMENT RESISTANCES (in. wg)

UNIT

MODEL

50DF

024044

50DF

054

50DF

064

OPTION

Bag Filter Economizer Economizer with Exhaust

Electric Heaters 0 5:1 (Low) 06

(Heat Cool Ratio)0 75 1 (Med)

1.0.1 (High)

Bag Filter

Economizer Economizer with Exhaust

Electric Heaters 0 5:1 (Low) 12

(Heat: Cool Ratio)0 75 1 (Med)

1 0 1 (High) 22 39 61

Bag Filter Economizer Economizer with Exhaust

Electric Heaters 0 5 1 (Low)

(Heat Cool Ratio)0 75:1 (Med) 24 44

UNIT CFM/TON

Г3ОО 400

03 05

.09 .15 .23

09 15 23

.14

.11

20 36 55 04 07 11 13 21

18 35

HEATING CAPACITIES

50DF054 ■

VOLTS

(Nominal)

208-230

460

208-230

460

208-230

30-37

I 37

; 45-55

1 75-91

460

208-230

460 i 55 ^ 67

208-230

460

208-230

460

208-230

460 55 ; 67

208-230

460

208-230

I 460

208-230

460 i 73 ;

208-230

460 1 110

208-230

460 ; 165

208-230 i 75-91

460 ; 91 ;

208-230 120-146 :

460 ! 146

208-230

460

208-230

460

' 45-55

60-73 ! 50

; 73

30-110 ' 50

i 110 : 50 375,430

1 45-55

i 75-91 ; 91 Ì105-128 1 57 ; 128 57 436,865

! 60-73

190-110

135-165 1

75-91

i 91 ; 60 310,585 0 20-146 , 50 ; 146 50 : 498,300

STAGE

KW ^

’50

; 50 : 67 ; 67 , 60

i 60

1 67

50 249,150

i 67

! 60 255,975-310,585 i 60 310,585

50 50 ! 375,430 56 56

66 60 ;■ -310,585 50 50

102,390-126,280 ; 126,280 1153,585-187,715 ; 187,715

255,975-310.585

1153,585-187,715 ¡204,780-249,150 1307,170-375,430

153,585-187,715

358.365-436,865

1204,780-249,150

i 249,150

1307,170-375,430 ¡460.755-563,145

: 563,145

255,975-310,586

409,560-498,300

1255,975-310,585 ¡409,560-498,300

25 38

.25 .35

25 04

.15 .24

23 38 30

BTUH

310,585

187,715

498,300

500

38 08

54 68

Entering Air Dry-Bulb Temp (F)

Correction Factor

.05 1.04 2 07 3 11 .10 .20 87

Interpolation is permissible Correction Factor = 1.09 x (1 - BF) x (edb - 80)

4 Cooling capacities are gross and do not include deduction for indoor fan

motor heat

98 1 96

2 94 3 92

1 74 2.62 3.49

4 14

5 18 491 4 36

use formula

shown below

1182

INDOOR AIR FAN PULLEY DATA

50DF I

FAN

RPM

925

931 2~3V—6.0

1073 2—3V—6.5

TÓ93

1159 1225 2—3V—5.6 1300 2—3V—6 0

925

984 1073 2—3V—6.5 1093 2—3V—5 0 1139 2_3V—6 9 1159 1225 2—3V—5.6 3_3V— 8.0 1300

925 2—3V—5.6

991 1073 1093 3—3V—5 0

1141

1159 1225 1300

925 4—3V—5.6

991 1073 1093 4—3V—5.0 1159 5—3V—5.3 1225

j 1300

1 925 4—3V—5 6

991 1039 1073 1093 5—3V—5 0 1159 5~3V—5.3 5_3V— 8.0

i 1225 1 925 I

1 1039 5—3V—4 75 1 1073 4—3V—6 5 1 1093 5—3V—5 0 1 1159 1 1225 5—3V-5.6 1 1312 I 1450 1 5—3V—5.0

MOTOR

PULLEY

No. Grooves—Type—in.

2—3V—5.6

2—3V—5 0 2—3V—5.3

2-3V-5.6

2—3V—4 5

3—3V—5.3 3~3V— 8.0 2—3V—6 0

2—3V—6 0

2-3V—6.5

4—3V—4.5 4—3V—5.3 4—3V—5.6 3—3V—6.0

3—3V—6.0 4—3V—6.5

4_3V~5.6 5—3V— 8.0

4—3V—6 0

4-3V-8.0

5—3V—4.75

4—3V—6.5

5-3V—5.6

4—3V—5 6 4—3V—6 0

5—3V—5 3

5_3V—6.0 5—3V— 8.0

FAN

PULLEY

2—3V—10.6 2—3V—10.6

2~3V—10.6

2—3V~ 8.0

2-3V— 8.0 2—3V— 8.0 2—3V— 8.0

2—3V—10.6

2—3V— 8.0

2-3V—10.6

2—3V— 8 0 2-.3V—10.6

2—3V— 8 0

2—3V—10.6 2—3V—10.6 2—3V—750 2—3V—10.6

3—3V— 8 0

4-3V— 6.9

4~3V— 8.0 4—3V— 8.0 3—3V— 8 0

4—3V—10.6

3_3V—10.6

4-3V—10.6 4—3V— 8 0 5—3V— 8.0

4—3V— 8 0

4—3V—10.6 4—3V—10.6

5-3V— 8.0

4-3V—10.6 5—3V— 8.0

5_3V— 8.0

4—3V—10 6 4—3V—10 6

5—3V— 8 0

4—3V—10 6

5—3V— 8 0 5—3V— 8.0 5—3V— 8.0

5-3V— 6.0

SINGLE-SPEED

BELT

NO.-SIZE

2—3V—710

2_3V~750

2-3V—750 2—3V—670 2—3V—670 2—3V—670 2—3V—710

2—3V—670 1

2—3V—750 : 2—3V—750

2—3V—710 i 2—3V—710

2—3V—750 ■ 2—3V—750 3_3V_710 2_3V~710 3_3V_710*

2—3V—710 i

2—3V—750 2—3V—750

3—3V—710 4—3V—670 4—3V—710 4—3V—710 3—3V—710

3—3V—750t

3—3V—750

3_3V_750t

4—3V—710

5_3V—710

5_3V_710*

4—3V—710

4~3V—750 4—3V—750 5—3V—710 4—3V—750 5—3V—710

5_3V_-710

5—3V—710 4—3V—750

4—3V—750 5—3V—710 4—3V—750 5—3V—710 5—3V—710 5—3V—710

5_3V_-710

5_3V—670

2-3V—750 i

TWO-SPEED

BELT

NO.—SIZE

2—3V—710

2—3V~750 2~3V—750 2—3V—7i0

2—3V~710 2—3V—710 2—3V—750

2—3V—750 2—3V—670

3—3V—710 2—3V—710

2—3V—750

i 2—3V—750

2—3V—750 3—3V—670 4—3V—670 4—3V—710 4—3V—710

1 3—3V—710 ■

3_^V—770 3—3V—770 3—3V—770 4—3V—710 5—3V—710

5-3V—710

1 4—3V—710

4^V—750 4—3V—770 5—3V—710 4—3V—770 5—3V—720 5—3V—720

5--3V_720 4—3V—750

4—3V—770 5—3V—710 4—3V—770 5—3V—720 5—3V—720

5~3V—720

5—3V—720

—

Shaded values indicate standard or optional pulley combi nations available as shown in Physical Data table All other combinations are field supplied

‘Remove one belt. fDrive requires 3 belts; 4 belts may be used if desired.

50DF

Performance data (coni)

FAN PERFORMANCE

CFM

6000 6500 7000 7500 8000 8500 9000 9500

110000

7500 8000 8500 9000 9500

10000

10500

11000

11500

12000

112500

9000 9500

10000

10500

11000

11500

12000

12500 13000 13500 14000 14500 15000

12000

13000 14000 15000 16000 17000 18000 19000

20000

15000 16000 17000 18000 19000

20000

21000

22000

23000 24000 25000

Bhp — Brake horsepower Rpm — Revolutions per minute

NOTES: 1 Values in italics indicate that motor larger than optional fan motor is required

2 Fan performance has deductions for unit casing losses, wet coil and clean

standard filters

3 Fan motor bhp is based on minimum voltages and 80 F air across motor

0.20

Rpm I Bhp

699

1 72

2 12

746 794

2 59

3 13

843

3 74

892

4 42

941 991

5 19

1041

6.04

6.99

109

662

1 78

696

2 09 763

730

2 43 2 81 829

764

3 22

799 834

3 68 4 20 929

870

4 70 963

905 941

5 30

977

6 00

6.70

1013

2 86

690

3 29

720

3 76 813

751 782

4 28

814

4 80 5 50 901

845 877

6 10 6 80

909

7 60

941

8 50

973

1006

9 40

1038

10 30

1071

11.30

734

4 80 6 00

791

7 40

848 907

9 10

11 00

966

1026

13 30 15 70

1086

1147

18 50

1208

21.70

704

5 08

741

6 00 7 02 843

779

817

8 17 9 44 915

855 894

10 84 12 38

933

14 06 1025

972

1590

1011

1790

1051

20 05

1090

Alternate fan motor or drive is required

Field supplied drive required

0.40 0 60

Rpm

Bhp

2 04'

763 807

2 48

852

2 97

897

3 54

943

4 17

990

4 89

1037

5 68

1085

6 56

1133

7 53 2 25 791

731

2 60 820 3 07 2 99 851 3 49 905

796

341 883 3 95 933

862

3 87

895 4 37 948

4 90 981 5 60 5 50 1014 6 20 1059

997

6 10 1031 6 80 1080 7 70 1065 7.60

755 3 40 812 784

3 88

4 40 867 4 97 917

4 96 895 5 57

842 871

5 60

6 20 952 6 90

931 7 00 981 962 7 70 1010 8 50'1055

992 8 50 1039 9 40 1083 1023 9 40 1054

10 40 1099 1085 11 40 1116

12.40 1159

784 5 40 838 6 20 831 6 60 883 880 7 90 928 8 80 932 9 50

985 11 40 1040 13 50 1071 1097

1590 1122

11S4

13 60 1175

1212 21,70 1229 22.20 1255

772

6 10 829

807 7 13

8 26 898

878 9 51 933

10 87 951 12 37 1003 988 14 00 1038 15 50

15 77

1062 17 69 1100

13 78

1138

22 03

Bhp

Rpm

820 862

905 948

992 1037 1082

1128

1174

915 4 46 963

1047 1114

839

923 6 20

1069 1129

974 1040 1022

863

968

1074 17 37 mo 1940

1147 21 58 1190 23 27 1183 23 92

Rpm

872

2 34

912

2 81 3 34

953

3 94

995

1038

4 60 5 35

1081

617

1125 1169

7 08

1214

8.08 2 71

848 877

5 01 994

1027

6 90 1092

1125 1157

8.40

3 91 865

891

4 42

943 971 999 7 60 1042

7 70 1027

10 30 1112

U41

11 30

1170

12 30

1200

13.50 889

930

7 40

974

1019 1064

12 20 14 30

1170 1157

16 60 19 20:1205

6 94 882

913

8 08 9 32 946

10 68 980

12 16

1015

13 76

1050 1084 1119 1884 1155

1226

EXTERNAL STATIC PRESSURE (in. wg)

0.80 Bhp

2 64' 3 13 3 69 4 32 5 02

1080 6 79 6 65 7 59

8.62 3 21 904

3 60 928 4 15 4 03 4 49 5 01 5 59 6 20 1069 6 80 1113 690 7 60 S.40 1165

9.30 4 42

4 95 940 5 53 964 6 16 6 80 1016

8 40 9 20

1010

11.10 12 10 1181 13 20

14.40 7 00 937

8 20 977 9 70 1017

11 40 13 30 15 30 17 60

20.20 1241

23.00 7 80 933

8 93 963

10 24 993 11 21 1039 1225 11 70 13 28 1058 15 00 1092 16 11

16.85 1126 18 07

20 93 1196

25 72

1 00

Rpm

Bhp

922

2 95

959

3 46 11005

999

4 03 1042

1039

469 1081 i 5,42 1121 : 6 23 1162 :

1122

1165

7.12 1203:

1208

803Ì1246:

1?.53.

9.1S\12SS

3 76 956 4 36 1005 4 59

955

5 09

983

1012

5 63

1040 6 20 1085 1100 7 50 1142 8.20

1132 8 30

9 10

1197

10.CX) 4 94 960 5 42

916

5 49 6 09 1010

990 6 75

7 50 1059

8 20 1085

1069

9.00

1097

990

1125

1090 1163 11.60

1153 11 90 1191 12.60

1230 14 10

1203 1238 75.30

7 80 9 10

10 60 12 40

1060 1104

14 30

1150

16 50 tl.8,6Mr.6Q..

1135

18.80

21.40

1388 34.30

871 9 91

1024

12 65 14 30 1100

1161 2017 1199

22.42

24 83

1231 1266 27 39 :1303:28.93

1.20

Rpm j Bhp

969

3 26 3 79 4 39 5 06 5 81 6 65 ;.U8.9. 75711240' 801:1275 a 58 :128Ì i $ OS

5.6? : :

980 4 76

1004

5 20 1052 1029 5 70 1076 1057

6 26

6 87 1127

7 50 1171

900 1202

9,80 1240 1234

10.70

985 6 03

6 67 1051 1034

7 35 1076

8 10

8 30 1125 1110 9 70 1136

1060 1176

1218

1370

^1245

14.90

1275

76.10

987

8 70 1022

10 00

1060 11 60

13 40

1101 1142 15 30

1231

20.00

1276

22.70

983

9 68 1031 1010 1089 1057

1069

1375 1112 15 36 1717

1132 1165 19 19

21 38

23 74

1234

.28,25 1304

1268

1.40

Rpm I Bhp

1012

3 56

1048

4 13

1084 :

4 75

1121 ;

544 1160 6 21 ,1197

1159 :

.7..07.ÌÌ235

4 98

1028

5 40 5 87 6 35

1100

6 92 7 53

1155

8 20

1184

900

1212

, 9J?0

10 60:

1270

11,50;

1006

5 94 11052

1026

6 54'1071 7 22 1091

7 96 1114

1100

8 70 1139 9 50 :1164

nso

1040 :1188 11 30:1213 1230; 1238

1201

13.40:1264

1227 1254

14.50:1290

1282

15.70 :

1034

950 1081Ì1050 1125:11 40: 1169:125Q:1211 :13.70

1068

1100 1110:n 90,1165 12.90: 1195 1390 1102 1140 1181

JU2.1.

,.1S-60

1265

521,10

10 67

11 93

13 31

1083

1484

16 54

1142 1172

18 35

20 32

1203

22 54

1235

24 97

1269

27.58

1333

30 36

1.60

Rpm

l'Ó54

3 85 1094 :

1089

445: 1126:

1125

5 12: 1162:

5.83:1198 5,82] 1234'

7.49

8.46

11054

5 69 1105

11074

6 07

1096

6 55 7 0S

1120

; Ì1144

I :.U22,

1260 1145:1360

14 40 1179'1540

16.40 1217 17,50

1169

•1194

-9,20J1260

(1251

10.50

: 1279

11 40

11 10

12.0Q.Ì1249

13.10

14.10

15.30

lassifg'.sa

1299:122 30

11077 I

11 75

illOl i

12 99

'1127

14 42

15 97

1153

:1181

17 68

■1211

1958

;i241

21 62

.1273:

23ÌàXÌ308

51304;

26.19 :1338

;1337:

28 8S: 1370

Ì1371 :

31.71 :1403

7 63

8.24 390

6 48 7 10 7 77

8.51 930

0 20

1.80

Rpm Bhp

1270

1120

1140 1162 1186

mo.

1234

1236

1094 1114

1133

1152 1174

1200

.1221

1273 1298

1184 1450:1227,1,5.60.

.3220...1.6.50.

1254 518.60

1292.2090

1122 1144

1169

1194

1221

1249

1.2.78

647

6.82 7 26

7.80 8 39

-9.00.

9.70

10.40

11.30

7 02 7 57 8 36 910 990

10.80

.1.1.80.

12.80

13.30 14,90

12 82 14 13 15 54 1716 1889

20.79

.2.2,90.

25.16

27.54

30.13 33,03

2,00

Bhp I Rpm : Bhp

4 48

5 1Cp.202,

,5,.3.lil233

6,60 SI 268

7.46'

1153

7 31

1167

7,64

8 05

1183

8 55

1203 1226

9.15

8.31

1250 1273

10.50

1298

11.20

7.57

1133

8 24

1153 1174

8 97 „1.21.1,

1193

9 73

1212

1.0.50.

1233

11 40(1270

12.40

1258 1284

13.50

1257 ; 17.50 1292 ; 19.70

1166

13 87

1187

15 29

1203

16 75

1234

1834

20 14

1260

22 07

1286 1314

24.17

1343

26.49

1373

28.98

1403

31,59

1434

34 40

2.20

1173 ■

1199

1213

5.222

1244 1254 1237

1173

1190 1232

1250

1291

1237

1266 1295

1206

1228

1249 1272

1.297

1323 1349

1377

1407

1437

4.80

.5.44.

6.15

6.97

8 18 8,53

..8,8.1.

837;

9.83

10,60

8 18 8 81 9 56

10.'37

11.20

12.10

13.10

15.10

16.70

18.60

14 94 1641

17 99

19 61 .21 3.9. '23.39 :25.S2

527.82 Ì30.36

■33.09

0.75

Rpm Bhp

7 56

868

871

901

10 02

935

11 45

963

1004

13 02

14 71

1038 1074

1 6 53 18 50

1109

1144

20 62 24000 1180 25000:1217

22 89

25 32

Alternate fan motor and drive required

Rpm Bhp

934

963 9 90 993

1024 1058 14 30

1092 1126

1161 20 17

1196

1231

1266

8 72 996

11 20 1050 12 65 1080

16 1 1 1141 18 07

22 42 1243 24 83 27 40

1.25

Rpm Bhp Rpm

1022

1110 1175 19 47 1222 20 94

1208 1277

1312 ;29.30

1054

9 94

11 16 1079

1106

12 51

1133

140: 15 64 1162

17 44 1191 21 67 1253

1287

24 05

26.59 1320 1355 ;31.04

EXTERNAL STATIC PRESSURE (in. wg)

1 50 1.75

Bhp Rpm Bhp Rpm Bhp

1120 Ilio 12 55

12 46 1134 13 84

1158 15 26 1209 16 75

13 88 1547

1185

17 10 18 96

23 13 1298 25 58 28 22 1361 29.81 1403 31 56 1444

16 88

1212 18 60

20 49

1240

22 56

1269

24 78 27 18

1329 1395

32.70

2 00 2 25

1165 13 85 1186

15 29 1237

1234

18 34 1282

1260

20 16 1307

1287

2210 1332

1314

24 19 1359

1343

26.48

1373

28.95 1415

1434

34 40

Bhp

Rpm

1216 15 21 1266 1661 1314

16 67

1259

18 29 19 94

21 71 23 73 1376 25 89

1386

28 20 1429 30 71

33.42

___

2.50 2.75

Rpm Bhp

1286 1307 1329 21 57 1375 23 12 1419 24 71

1352 1402 27 60

Rpm

18 11

1333

19 75

1353

23 40 1396 25 13 1440 26 78 25 37

1420 27 15 1444

29 99

1361

3.Ò0 Bhp

19 54

Bhp Rpm

18 06 19 59 1378 21 12 21 27 1397 22 83

29 32

Rpm 1406

1423

1441

3. Bhp

21 CM

22 68

24 44

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