Carrier 50BV020-064 specifications A - Physical Data - 50BVC,E,J,K,Q

Page 17

Table 3A — Physical Data — 50BVC,E,J,K,Q

UNIT 50BVC,E,J,K,Q

020

 

024

 

028

 

034

NOMINAL CAPACITY (Tons)

18

 

20

 

25

 

30

OPERATING WEIGHT (lb)

 

 

 

 

 

 

 

50BVC,Q…50BVJ

1192…1227

 

1378…1413

 

1428…1473

 

1680…1725

50BVE…50BVK

1110…1145

 

1290…1325

 

1320…1365

 

1520…1565

COMPRESSOR

 

 

Copeland Scroll

 

 

Quantity

2

 

2

 

2

 

2

 

 

 

Number of Refrigerant Circuits

2

 

2

 

2

 

2

Oil (ounces) Ckt 1…Ckt 2

85…85

 

110…110

 

110…110

 

140…140

REFRIGERANT TYPE

 

 

R-22 or R-410A

 

 

Expansion Device

TXV

 

TXV

 

TXV

 

TXV

 

 

 

Operating Charge (lb) Ckt 1…Ckt 2

8.1…8.1

 

9.1…9.1

 

9.1…9.1

 

18.0…18.0

CONDENSER (50BVC,Q,J only)

 

 

Tube-in-Tube Coaxial

 

 

Quantity of Manifolded Circuits

2

 

2

 

2

 

2

 

 

 

Nominal Flow Rate (GPM)

54

 

60

 

75

 

90

Water Flow Range (GPM)

36-72

 

40-80

 

50-100

 

60-120

Max. Water Working Pressure (PSIG)

400

 

400

 

400

 

400

Max. Refrig. Working Pressure (PSIG)

450 (600*)

 

450 (600*)

 

450 (600*)

 

450 (600*)

Min. Entering Water Temp. (°F)

50

 

50

 

50

 

50

Max. Entering Water Temp. (°F)

110

 

110

 

110

 

110

Waterside Volume (gal)

3.6

 

4.0

 

5.0

 

6.0

EVAPORATOR COIL

 

 

 

 

 

 

 

Rows…Fins/in.

3…14

 

3…14

 

3…14

 

3…14

Total Face Area (sq ft)

18.1

 

18.1

 

18.1

 

22.0

EVAPORATOR FAN

 

 

 

 

 

 

 

Quantity…Size

2…15x15

 

2…15x15

 

2…15x15

 

2…15x15

Type Drive

Belt

 

Belt

 

Belt

 

Belt

Nominal CFM

7200

 

8000

 

10,000

 

12,000

Std Motor Qty…HP…Frame Size

2…1.5…56

 

2…2…56H

 

2…3…56HZ

 

2…5…56HZ

Alt 1 Motor Qty…HP…Frame Size

2…2…56H

 

2…3…56HZ

 

2…5…56HZ

 

—

Alt 2 Motor Qty…HP…Frame Size

2…3…56HZ

 

2…5…56HZ

 

—

 

—

Alt 3 Motor Qty…HP…Frame Size

2…5…56HZ

 

—

 

—

 

—

Motor Nominal RPM (1.5, 2, 3, HP)

1725

 

1725

 

1725

 

—

Motor Nominal RPM (5 HP)

3450

 

3450

 

3450

 

3450

Fan Drive RPM Range

 

 

 

 

 

 

 

Std Fan Drive (1.5, 2, 3 HP)

753-952

 

753-952

 

753-952

 

—

Std Fan Drive (5 HP)

967-1290

 

967-1290

 

967-1290

 

967-1290

Med Static Fan Drive (1.5, 2, 3 HP)

872-1071

 

872-1071

 

872-1071

 

—

Motor Bearing Type

Ball

 

Ball

 

Ball

 

Ball

Maximum Allowable RPM

1300

 

1300

 

1300

 

1300

Motor Pulley Pitch Diameter

 

 

 

 

 

 

 

Std Fan Drive (1.5, 2, 3 HP)

3.7-4.7

 

3.7-4.7

 

3.7-4.7

 

—

Std Fan Drive (5 HP)

2.9-3.9

 

2.9-3.9

 

2.9-3.9

 

2.9-3.9

Med Static Fan Drive (1.5, 2, 3 HP)

4.3-5.3

 

4.3-5.3

 

4.3-5.3

 

—

Motor Shaft Diameter (in.) (1.5, 2 HP)

5/8

 

5/8

 

—

 

—

Motor Shaft Diameter (in.) (3, 5 HP)

7/8

 

7/8

 

7/8

 

7/8

Belt, Qty…Type…Length (in.)

 

 

 

 

 

 

 

Std Fan Drive (1.5, 2 HP)

1…B…39

 

1…B…39

 

—

 

—

Std Fan Drive (3 HP)

2…B…39

 

2…B…39

 

2…B…39

 

—

Std Fan Drive (5 HP)

2...BX…42

 

2...BX…42

 

2...BX…42

 

2...BX…42

Med Static Fan Drive (1.5, 2 HP)

1…B…40

 

1…B…40

 

—

 

—

Med Static Fan Drive (3 HP)

2…B…40

 

2…B…40

 

2…B…40

 

—

Pulley Center Line Distance (in.)

10.1…10.9

 

10.1…10.9

 

10.1…10.9

 

10.1…10.9

Speed Change Per Full Turn of

 

 

 

 

 

 

 

Moveable Pulley Flange (RPM)

 

 

 

 

 

 

 

Std Fan Drive (1.5, 2, 3 HP)

33

 

33

 

33

 

—

Std Fan Drive (5 HP)

54

 

54

 

54

 

54

Med Static Fan Drive (1.5, 2, 3 HP)

33

 

33

 

33

 

—

Fan Shaft Diameter (in.)

1

 

1

 

1

 

1

HIGH PRESSURE SWITCHES (PSIG)

 

 

 

 

 

 

 

Cutout

380 (420*) ± 10

 

380 (420*) ± 10

 

380 (420*) ± 10

 

380 (420*) ± 10

Reset (Auto)

300 (420*) ± 15

 

300 (420*) ± 15

 

300 (420*) ± 15

 

300 (420*) ± 15

LOW PRESSURE SWITCHES (PSIG)

 

 

 

 

 

 

 

Cutout

20 (40*) ± 3

 

20 (40*) ± 3

 

20 (40*) ± 3

 

20 (40*) ± 3

Reset (Auto)

40 (60*) ± 5

 

40 (60*) ± 5

 

40 (60*) ± 5

 

40 (60*) ± 5

REMOTE REFRIGERANT CONNECTIONS

 

 

 

 

 

 

 

(50BVE,K Only)

 

 

 

 

 

 

 

Discharge (Hot Gas) Connection (in.) Qty…Size

2…11/8

 

2…11/8

 

2…11/8

 

2…11/8

Liquid Connection (in.) Qty…Size

2…7/8

 

2…7/8

 

2…7/8

 

2…7/8

RETURN AIR FILTERS

 

 

 

 

 

 

 

Quantity…Size (in.)

4…20x34.5x1

 

4…20x34.5x1

 

4…20x34.5x1

 

4…30x34.5x1

LEGEND

*R-410A models.

 

 

 

 

TXV — Thermostatic Expansion Valve

 

 

 

 

 

 

 

17

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Contents SAFETY CONSIDERATIONS Installation, Start-Upand Service InstructionsCONTENTS GENERAL MAJOR SYSTEM COMPONENTS Constant Volume CV UnitsStep 1 - Complete Pre-InstallationChecks INSTALLATIONTable 2 - Modular Unit Shipping Table a50-7257efFig. 2 - 50BVC,J,Q020-034Dimensions Fig. 3 - 50BVE,K020-034Dimensions a50-8201 Fig. 4 - 50BVT,V,W034 High-BoyDimensionsFig. 5 - 50BVT,V,W034 Low-BoyDimensions Fig. 6 - 50BVT,V,W044-064 High-BoyDimensions Fig. 7 - 50BVT,V,W044-064 Low-BoyDimensions Fig. 8 - 50BVU,X034 High-BoyDimensions Fig. 9 - 50BVU,X034 Low-BoyDimensions Fig. 10 - 50BVU,X044-064 High-BoyDimensions Fig. 11 - 50BVU,X044-064 Low-BoyDimensions a50-7306ef NOTES 1.Dimensions in inches mma50-7307ef NOTES 1.Dimensions in inches mmSize 034 Units Size 044-064Units Shipping Weights lba50-8235 Table 3A - Physical Data - 50BVC,E,J,K,Q Table 3B - Physical Data - 50BVT,U,V,W,X Multiple Fan Units Fig. 15 - Typical Fan Discharge Connections forFig. 16 - Duct Static Pressure Probe a50-7138efP/N 39EK20462 a50-7267efStep 4 - Make Piping Connections Fig. 19 - DHS Limit Switch P/Na50-8253 Fig. 18 - DHS Pressure Limit Location50BVC,J,Q Units Table 5A - Condenser Pressure DropTable 5B - Condenser Pressure Drop 50BVT,V,W Units50BVC,E,J,K,Q Units Table 6A - Hot Water Pressure DropTable 6B - Hot Water Pressure Drop 50BVT,U,V,W,X UnitsTable 7B - Economizer Pressure Drop Curve Step 5 - Complete Electrical Connectionsft wg, 50BVT,U,V,W,X Units a50-7270efTable 9A - Electrical Data - 50BVC,E,J,K,Q Table 9B - Electrical Data - 50BVT,U,V,W,X Two-StageCooling Units Fig. 24 - Typical Wiring 18 to 30 Ton Unitsa50-7272ef Table 10 - Recommended Cables a50-7273efa50-7164tf Fig. 26 - Field Terminal Blocka50-7275ef Installation Unit Discharge LocationFig. 27 - Modular Unit VAV Control Panel a39-1867tTable 11 - Thermistor Resistance vs Temperature START-UPValues for Supply-AirTemperature Sensor 10 Kilo- ohmTable 13 - Fan Performance - 50BVC,E,Q020 CV Unit Start-UpTable 14 - Fan Performance - 50BVC,E,Q024 Table 15 - Fan Performance - 50BVC,E,Q028 Table 16 - Fan Performance - 50BVC,E,Q034 Table 17 - Fan Performance - 50BVT,U,V034 Table 17 - Fan Performance - 50BVT,U,V034 cont Table 18 - Fan Performance - 50BVT,U,V044 Table 19 - Fan Performance - 50BVT,U,V054 Table 19 - Fan Performance - 50BVT,U,V054 cont Table 20 - Fan Performance - 50BVT,U,V064 Table 20 - Fan Performance - 50BVT,U,V064 cont VAV Unit Start-Up 02-06-04 OMNIZONE VPACFig. 32 - LID a50-7425efFig. 33 - 50BV VFD Display The LID display will show Year Table 23 - Software Points Table 21 - Controller Set PointsTable 22 - Controller Hardware Points Table 24 - Configuration Parameters Unoccupied space or return air temperature demand MAINTENANCE SERVICEFig. 34 - Gravity Flow Method a50-186tfa50-187tf Fig. 35 - Forced Circulation MethodTROUBLESHOOTING Evaporator Fan Performance AdjustmentCharging the System a50-7135tfPOSSIBLE CAUSE PROBLEMPROBLEM Table 28 - Unit TroubleshootingCORRECTION PROCEDURE POSSIBLE CAUSETable 31 - Clearing a Forced Input or Output Table 29 - CV Units LED Diagnostic CodesTable 30 - Forcing an Input or Output Page Page Page Page UNIT WIRING FIELD WIRINGPage WIRE LEGEND FIELD WIRINGa50-7282ef TRANS-1PCB2 J1 FIELD WIRINGPCB1 FIELD WIRINGUNIT WIRING PCB1 FIELD WIRINGLEGEND AND NOTES FOR FIG Catalog No Copyright 2008 Carrier CorporationForm 50BV-3SI 10-08I. PRELIMINARY INFORMATION START-UPCHECKLISTII. PRE-START-UP CONTROLSIII.START-UP
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