Carrier 48EW, 48EY024-068 Fan Performance, 48AW,AY060 Horizontal Discharge Units, 26,000 27,000

Page 72

Table 26 — Fan Performance, 48AW,AY060 — Horizontal Discharge Units

AIRFLOW

 

 

 

 

 

 

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

 

 

 

 

 

 

 

0.2

 

0.4

 

0.6

 

0.8

 

1.0

 

1.2

 

1.4

 

1.6

(Cfm)

 

 

 

 

 

 

 

 

 

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

12,000

516

 

4.81

569

 

5.54

617

 

6.30

660

 

7.10

701

 

7.93

739

 

8.79

774

 

9.68

808

 

10.59

14,000

584

 

6.90

632

 

7.69

676

 

8.50

716

 

9.33

754

 

10.20

790

 

11.10

824

 

12.02

857

 

12.97

15,000

619

 

8.13

664

 

8.96

706

 

9.79

745

 

10.65

782

 

11.53

817

 

12.44

850

 

13.38

882

 

14.35

16,000

654

 

9.49

697

 

10.36

737

 

11.22

775

 

12.10

811

 

13.00

845

 

13.93

877

 

14.88

908

 

15.86

17,000

689

 

10.99

730

 

11.90

769

 

12.79

806

 

13.69

840

 

14.61

873

 

15.56

904

 

16.53

935

 

17.52

18,000

725

 

12.64

764

 

13.58

801

 

14.51

837

 

15.43

870

 

16.38

902

 

17.34

933

 

18.32

962

 

19.33

19,000

760

 

14.43

798

 

15.41

834

 

16.37

868

 

17.32

900

 

18.29

932

 

19.27

961

 

20.27

990

 

21.29

20,000

796

 

16.37

833

 

17.39

867

 

18.39

900

 

19.37

931

 

20.36

962

 

21.36

991

 

22.38

1019

 

23.42

21,000

832

 

18.47

867

 

19.54

901

 

20.56

932

 

21.57

963

 

22.59

992

 

23.61

1020

 

24.65

1048

 

25.71

22,000

869

 

20.74

902

 

21.84

934

 

22.90

965

 

23.94

995

 

24.98

1023

 

26.03

1051

 

27.09

1077

 

28.17

23,000

905

 

23.17

937

 

24.31

968

 

25.40

998

 

26.48

1027

 

27.55

1055

 

28.62

1081

 

29.70

1107

 

30.79

24,000

942

 

25.78

973

 

26.95

1003

 

28.08

1032

 

29.18

1059

 

30.28

1086

 

31.38

1113

 

32.48

1138

 

33.59

25,000

978

 

28.56

1008

 

29.77

1037

 

30.93

1065

 

32.07

1092

 

33.20

1119

 

34.32

1144

 

35.44

1169

 

36.58

26,000

1015

 

31.52

1044

 

32.76

1072

 

33.96

1099

 

35.13

1125

 

36.29

1151

 

37.44

1176

 

38.59

 

27,000

1052

 

34.66

1080

 

35.94

1107

 

37.18

1133

 

38.38

1159

 

39.57

1184

 

40.75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AIRFLOW

 

 

 

 

 

 

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

 

 

 

 

 

 

 

1.8

 

2.0

 

2.2

 

2.4

 

2.6

 

2.8

 

3.0

 

3.2

(Cfm)

 

 

 

 

 

 

 

 

 

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

12,000

841

 

11.52

872

 

12.46

901

 

13.42

930

 

14.38

958

 

15.36

985

 

16.34

1011

 

17.33

1036

 

18.33

14,000

888

 

13.94

917

 

14.92

946

 

15.92

974

 

16.94

1001

 

17.97

1027

 

19.01

1052

 

20.06

1077

 

21.12

15,000

912

 

15.33

941

 

16.34

970

 

17.36

997

 

18.40

1024

 

19.45

1049

 

20.51

1074

 

21.58

1099

 

22.67

16,000

938

 

16.86

966

 

17.88

994

 

18.93

1021

 

19.98

1047

 

21.05

1072

 

22.14

1097

 

23.23

1121

 

24.34

17,000

964

 

18.54

992

 

19.58

1019

 

20.63

1045

 

21.70

1071

 

22.79

1096

 

23.89

1120

 

25.01

1144

 

26.13

18,000

990

 

20.36

1018

 

21.41

1045

 

22.48

1070

 

23.57

1096

 

24.67

1120

 

25.79

1144

 

26.93

1167

 

28.07

19,000

1018

 

22.34

1045

 

23.40

1071

 

24.49

1096

 

25.59

1121

 

26.71

1145

 

27.84

1169

 

28.99

1192

 

30.16

20,000

1046

 

24.48

1072

 

25.56

1098

 

26.66

1123

 

27.77

1147

 

28.90

1171

 

30.05

1194

 

31.21

 

21,000

1074

 

26.78

1100

 

27.87

1125

 

28.99

1150

 

30.12

1173

 

31.26

1197

 

32.42

 

 

22,000

1103

 

29.26

1129

 

30.36

1153

 

31.49

1177

 

32.63

 

 

 

 

23,000

1133

 

31.90

1157

 

33.02

1181

 

34.16

 

 

 

 

 

24,000

1163

 

34.72

1187

 

35.86

 

 

 

 

 

 

25,000

1193

 

37.72

 

 

 

 

 

 

 

26,000

 

 

 

 

 

 

 

 

27,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AIRFLOW

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

 

 

 

 

 

 

 

 

 

 

 

 

 

3.4

 

3.6

 

3.8

 

4.0

 

 

 

 

 

 

 

 

 

 

 

 

(Cfm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

Rpm

 

Bhp

 

 

 

 

 

 

 

 

 

 

 

 

12,000

1061

 

19.33

1085

 

20.34

1108

 

21.35

1131

 

22.36

 

 

 

 

 

 

 

 

 

 

 

 

14,000

1101

 

22.18

1125

 

23.25

1148

 

24.33

1170

 

25.42

 

 

 

 

 

 

 

 

 

 

 

 

15,000

1122

 

23.76

1146

 

24.86

1168

 

25.97

1191

 

27.08

 

 

 

 

 

 

 

 

 

 

 

 

16,000

1144

 

25.45

1167

 

26.58

1190

 

27.71

 

 

 

 

 

 

 

 

 

 

 

 

 

17,000

1167

 

27.27

1190

 

28.42

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18,000

1190

 

29.23

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEGEND

Bhp — Brake Horsepower

NOTES:

1.Fan performance is based on wet coils, economizer, roof curb, cabinet losses, and clean 2-in. filters.

2.Conversion — Bhp to watts:

Watts =

Bhp x 746

Motor Efficiency

3.Variable Air Volume units will operate down to 70 cfm/ton. Per- formance at 70 cfm/ton is limited to unloaded operation and may be additionally limited by edb (entering dry bulb) and ewb (entering wet bulb) conditions.

72

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Contents Installation, Start-Up Service Instructions Make Unit Duct Connections Instructions onRoof Curb 48AJ,AK020-030 and 48EJ,EK024-034 Units Roof Curb 48AJ,AK034-050 and 48EJ,EK038-048 Units Roof Curb 48AJ,AK060 and 48EJ,EK054-068 Units Page Base Unit Dimensions 48AJ,AK020-030 Base Unit Dimensions 48AJ,AK035-050 Base Unit Dimensions 48AJ,AK060 Base Unit Dimensions 48AW,AY020-030 Base Unit Dimensions 48AW,AY035-050 Base Unit Dimensions 48W,AY060 Base Unit Dimensions 48EJ,EK024-034 Base Unit Dimensions 48EJ,EK038-048 Base Unit Dimensions 48EJ,EK054-068 Base Unit Dimensions 48EW,EY024-034 Base Unit Dimensions 48EW,EY038-048 Base Unit Dimensions 48EW,EY054-068 AT Each Corner % Rigging Weights 48AJ,AK,AW,AY Units AT Each Corner % 48EJ,EW,EK,EYD02448EJ,EW,EK,EYD028 48EJ,EW,EK,EYD030Physical Data 48AJ,AK,AW,AY Units Unit 48AJ,AK,AW,AYQuantity Rows...Fins/in Physical Data 48EJ,EK,EW,EY Units Unit 48EJ,EK,EW,EY06D537 06EA250 06EA265 Quantity...Type Ckt 1, Ckt Operating Weights Evaporator Fan Motor Data Air Distribution Thru-the-BottomInstall Flue Hood Combustion Fan Housing Location48A,E Series Staged Gas Implementation Number of Stages Model Number Position Heat Size HtstgtypStages Thermistor Designations Supply-Air Thermistor Connections Indoor Air Quality Sensor Configuration Make Electrical Connections CCN COMSIO DIPUnbalanced 3-Phase Supply Voltage Electrical Data 48AJ,AK,AW,AY UnitsMin Max RLA LRAQty 30.8/28.0 180.5/177.7 225/225 236.3/230.9 Electrical Data 48EJ,EK,EW,EY Units Range Exhaust FAN MotorFLA LRA MCA Mocp EW,EYFLA LRA MCA Mocp EW,EY 54.0 23.6 41.6 FLA NECRLA Field Power Wiring Connections GND GroundCCB EquipGND IFCOFC Carrier Comfort Network Indoor-Fan Circuit CCN IFC PescIndoor-Fan Relay Terminal Block CCN Connection Approved Shielded Cables Color Code RecommendationsMake Outdoor-Air Inlet Adjustments Space Temperature Averaging WiringAdding Seal Strip to Top of Hood Sides Adding Seal Strip to Sides of Hood Top Mounting Flange Mounting Angle With Tabs Attached to Filter Track Assembly Differential Enthalpy Control and Sensor Psychrometric Chart for Enthalpy Control Control Control Point Curve APPROX. DEGBarometric Relief Damper and Power Exhaust Mounting Details Unit Size 80.5 79.5 48EJ,EK,EW,EY024-054120.5 119.5 48EJ,EK,EW,EY058-068 Motormaster III Sensor Location 48EJ,EK,EW,EY054-064 Field Modifications Side Return Air ConversionSTART-UP Pressure Control Signal VFD SET Point In. wgCarrier Default Program Parameter Values Parameter Group Default ValueMotor Standard Efficiency High Efficiency Typical Factory Wiring Optional Field Wiring Building Pressure Signal Level DIP Switch Configuration SettingOpen ClosedDIP Switch Factory Settings Fan Performance, 48AJ,AK020-030 Vertical Discharge UnitsAirflow Fan Performance, 48AJ,AK035 Vertical Discharge Units 16,00017,000 18,000Fan Performance, 48AJ,AK040,050 Vertical Discharge Units 19,00020,000 17,000 18,000 19,000 20,000Fan Performance, 48AJ,AK060 Vertical Discharge Units Fan Performance, 48AW,AY020-030 Horizontal Discharge Units 11,000 12,000 13,000 14,000 15,000Fan Performance, 48AW,AY035 Horizontal Discharge Units 17,000 18,00013,000 14,000 15,000 16,000 17,000 18,000 Fan Performance, 48AW,AY040,050 Horizontal Discharge Units 19,000 20,00016,000 17,000 18,000 19,000 20,000 Fan Performance, 48AW,AY060 Horizontal Discharge Units 26,000 27,000Fan Performance, 48EJ,EK024,034 Vertical Discharge Units Fan Performance, 48EJ,EK038,044 Vertical Discharge Units 19,000 20,000 Available External Static Pressure in. wgRpm Bhp 000 1066 1096 1125 15,000 16,000 17,000 18,000 19,000 20,000Fan Performance, 48EJ,EK048 Vertical Discharge Units Rpm Bhp000 1086 11.10 1114 11.61 1141 12.14 Fan Performance, 48EJ,EK054-068 Vertical Discharge Units 10,000 949 13.81 970 14.54 990 15.26Fan Performance, 48EW,EY054-068 Horizontal Discharge Units 26,000 27,000 Available External Static Pressure in. wg10,000 956 12.99 976 13.66 996 14.32 20,000 21,000 22,000 23,000 24,000 25,000 26,000 27,000Airflow LOW Speed Medium Speed High Speed ESPMotor Limitations Air Quality LimitsSequence of Operation User Defined Set Points Software Control Link PointsPage Heat Interlock Relay Wiring COM CommonStaged Gas System Components Stage Gas System Inputs/OutputsFunction Location Input DescriptionNavigator Display Navigator Display Menu StructureOccupied Morning Temperature Software Heat Version EnabledDEG. F Reset ConditionField-Supplied Smoke Detector Wiring Smoke Control Modes Cooling Capacity Staging Table, CV Units with 2 CompressorsDevice Pressurization Smoke Purge Evacuation Fire Shutdown StagesService Typical Gas Heating Section Lubrication Manufacturer LubricantEvaporator Fan Service and Replacement Belt Tension Adjustment To adjust belt tensionEvaporator-Fan Motor Replacement Condenser-Fan AdjustmentGas Valve Adjustment Cooling Charging Chart 48EJ,EK,EW,EY024-034Cooling Charging Chart 48EJ,EK,EW,EY054-068 Protective Devices Voltage Wire Indoor Voltage Wire06D-537 208/230-3-60 Following fan motors have two 20 HP 208/230-3-60Typical 48EK VAV 24-V Control Circuit Typical CV 24-V Control Circuit Typical 48EK VAV 115-V Control Circuit Typical 48EJ CV 115-V Control Circuit 101 102 Troubleshooting Typical Refrigerant Circuiting 48AJ,AK,AW,AY027,030 Typical Refrigerant Circuiting 48AJ,AK,AW,AY035 Typical Refrigerant Circuiting 48EJ,EK,EW,EY038,044 Typical Refrigerant Circuiting 48AJ,AK,AW,AY040,050 Typical Refrigerant Circuiting 48EJ,EK,EW,EY048 Typical Refrigerant Circuiting 48EJ,EK,EW,EY054 Typical Refrigerant Circuiting 48AJ,AK,AW,AY060 Typical Refrigerant Circuiting 48EJ,EK,EW,EY064 Typical Refrigerant Circuiting 48EJ,EK,EW,EY068 IGC Control Heating and Cooling IGC Control Board LED Alarms Control Board LED AlarmsO Channel Designations Base Module CV O Channel Designations Base Module VAVTerminal no Assignment IAQService Training START-UP Checklist General
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48EJ, 48AJ, 48AK, 48EK, 48AY020-060 specifications

The Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY024-068 are cutting-edge rooftop air conditioning units designed for commercial applications. These models are renowned for their reliability, energy efficiency, and innovative technologies aimed at providing optimal indoor comfort.

One of the standout features of these units is their advanced cooling and heating capabilities. They employ a multi-stage compressor system that allows for precise temperature control, accommodating various load requirements. This flexibility is particularly beneficial in commercial settings where the cooling load can fluctuate throughout the day.

Energy efficiency is paramount in today’s environmental landscape, and Carrier has ensured that these models meet stringent efficiency standards. They incorporate high-efficiency scroll compressors, which significantly reduce energy consumption while delivering powerful performance. The units are also equipped with variable speed fans that adjust airflow based on demand, further optimizing energy use.

In terms of construction, these rooftop units feature a robust design that enhances durability and longevity. The cabinet is constructed to withstand harsh weather conditions, ensuring reliable performance year-round. Additionally, the units are equipped with corrosion-resistant coatings, particularly useful in coastal environments where salt exposure can be a concern.

The Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY models utilize advanced controls and connectivity features, allowing for easy integration into building management systems. This connectivity enables remote monitoring and control, facilitating quick response to changing conditions and simplifying maintenance tasks.

Noise reduction is another key characteristic of these models. They are designed with sound-absorbing insulation and low-noise fan blades to ensure quiet operation, making them suitable for noise-sensitive environments such as schools and hospitals.

These units are also available with various options for air filtration and dehumidification. The use of high-efficiency air filters enhances indoor air quality by trapping dust, pollen, and other airborne particles. Enhanced dehumidification capabilities ensure that spaces remain comfortable even in humid conditions.

In conclusion, the Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY024-068 rooftop units are engineered to offer exceptional performance, energy efficiency, and durability. With their advanced technologies and user-friendly features, they stand out as reliable solutions for meeting diverse commercial cooling and heating needs, making them a popular choice for many businesses.