Carrier 48EK, 48EW, 48EY024-068, 48AW, 48AK Fan Performance, 48AJ,AK060 Vertical Discharge Units

Page 68

Table 22 — Fan Performance, 48AJ,AK060 — Vertical 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

476

 

4.33

534

 

5.04

585

 

5.78

632

 

6.56

674

 

7.39

714

 

8.24

751

 

9.12

786

 

10.02

14,000

536

 

6.19

588

 

6.96

636

 

7.74

680

 

8.56

720

 

9.41

758

 

10.30

793

 

11.21

827

 

12.15

15,000

566

 

7.28

617

 

8.09

662

 

8.90

704

 

9.73

744

 

10.59

781

 

11.50

816

 

12.42

849

 

13.38

16,000

597

 

8.48

645

 

9.34

689

 

10.17

730

 

11.02

768

 

11.90

804

 

12.82

839

 

13.76

871

 

14.73

17,000

628

 

9.80

674

 

10.71

717

 

11.58

756

 

12.45

793

 

13.34

829

 

14.27

862

 

15.23

894

 

16.21

18,000

659

 

11.25

704

 

12.21

745

 

13.11

783

 

14.00

819

 

14.91

853

 

15.85

886

 

16.82

918

 

17.82

19,000

691

 

12.82

734

 

13.84

773

 

14.77

810

 

15.69

845

 

16.62

879

 

17.58

911

 

18.56

942

 

19.57

20,000

723

 

14.53

764

 

15.60

802

 

16.57

838

 

17.52

872

 

18.47

905

 

19.44

936

 

20.44

966

 

21.45

21,000

755

 

16.37

794

 

17.49

831

 

18.51

866

 

19.49

899

 

20.47

931

 

21.46

961

 

22.47

991

 

23.50

22,000

787

 

18.35

825

 

19.53

861

 

20.59

894

 

21.60

927

 

22.61

958

 

23.62

987

 

24.64

1016

 

25.69

23,000

819

 

20.48

856

 

21.71

890

 

22.81

923

 

23.87

954

 

24.90

985

 

25.93

1014

 

26.97

1042

 

28.03

24,000

851

 

22.75

887

 

24.04

920

 

25.19

952

 

26.28

983

 

27.34

1012

 

28.40

1041

 

29.46

1068

 

30.54

25,000

883

 

25.17

918

 

26.52

951

 

27.72

982

 

28.84

1011

 

29.94

1040

 

31.02

1068

 

32.11

1095

 

33.21

26,000

916

 

27.76

950

 

29.15

981

 

30.40

1011

 

31.57

1040

 

32.70

1068

 

33.81

1095

 

34.92

1122

 

36.04

27,000

948

 

30.49

981

 

31.95

1012

 

33.24

1041

 

34.46

1070

 

35.62

1097

 

36.76

1123

 

37.90

1149

 

39.04

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

819

 

10.93

851

 

11.85

881

 

12.78

911

 

13.72

939

 

14.67

967

 

15.62

993

 

16.58

1019

 

17.54

14,000

859

 

13.11

890

 

14.08

920

 

15.06

948

 

16.06

976

 

17.07

1003

 

18.08

1029

 

19.11

1054

 

20.13

15,000

881

 

14.36

911

 

15.35

940

 

16.36

968

 

17.38

996

 

18.41

1022

 

19.45

1048

 

20.50

1073

 

21.56

16,000

902

 

15.72

932

 

16.73

961

 

17.76

989

 

18.80

1016

 

19.86

1042

 

20.92

1067

 

22.00

1092

 

23.08

17,000

925

 

17.21

954

 

18.24

983

 

19.28

1010

 

20.34

1036

 

21.42

1062

 

22.51

1087

 

23.60

1112

 

24.71

18,000

948

 

18.84

977

 

19.88

1005

 

20.94

1032

 

22.01

1058

 

23.11

1083

 

24.21

1108

 

25.33

1132

 

26.46

19,000

971

 

20.60

1000

 

21.65

1027

 

22.72

1054

 

23.81

1080

 

24.92

1105

 

26.04

1129

 

27.18

1153

 

28.33

20,000

995

 

22.50

1023

 

23.57

1050

 

24.65

1076

 

25.76

1102

 

26.88

1126

 

28.01

1151

 

29.17

1174

 

30.33

21,000

1019

 

24.55

1047

 

25.63

1073

 

26.73

1099

 

27.84

1124

 

28.97

1149

 

30.13

1173

 

31.29

1196

 

32.47

22,000

1044

 

26.76

1071

 

27.84

1097

 

28.95

1123

 

30.08

1147

 

31.22

1172

 

32.39

1195

 

33.56

 

23,000

1069

 

29.11

1096

 

30.21

1122

 

31.33

1147

 

32.47

1171

 

33.63

1195

 

34.80

 

 

24,000

1095

 

31.63

1121

 

32.74

1146

 

33.87

1171

 

35.02

1195

 

36.19

 

 

 

25,000

1121

 

34.31

1147

 

35.44

1171

 

36.58

1196

 

37.74

 

 

 

 

26,000

1147

 

37.16

1172

 

38.30

1197

 

39.46

 

 

 

 

 

27,000

1174

 

40.18

1199

 

41.34

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

1045

 

18.51

1069

 

19.48

1093

 

20.45

1117

 

21.43

 

 

 

 

 

 

 

 

 

 

 

 

14,000

1079

 

21.17

1103

 

22.21

1126

 

23.26

1149

 

24.31

 

 

 

 

 

 

 

 

 

 

 

 

15,000

1097

 

22.63

1121

 

23.70

1144

 

24.78

1167

 

25.86

 

 

 

 

 

 

 

 

 

 

 

 

16,000

1116

 

24.17

1140

 

25.28

1162

 

26.38

1185

 

27.49

 

 

 

 

 

 

 

 

 

 

 

 

17,000

1135

 

25.83

1159

 

26.95

1181

 

28.09

 

 

 

 

 

 

 

 

 

 

 

 

 

18,000

1156

 

27.60

1178

 

28.74

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19,000

1176

 

29.48

1199

 

30.65

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20,000

1197

 

31.50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

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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 LocationStages 48A,E Series Staged Gas ImplementationNumber of Stages Model Number Position Heat Size Htstgtyp 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 RLA FLANEC Field Power Wiring Connections GND GroundCCB EquipGND IFCOFC Indoor-Fan Relay Terminal Block Carrier Comfort Network Indoor-Fan CircuitCCN IFC Pesc 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 120.5 119.5 48EJ,EK,EW,EY058-068 Unit Size80.5 79.5 48EJ,EK,EW,EY024-054 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 ClosedAirflow DIP Switch Factory SettingsFan Performance, 48AJ,AK020-030 Vertical Discharge Units 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 15,00013,000 14,000 15,000 16,000 17,000 18,000 Fan Performance, 48AW,AY035 Horizontal Discharge Units17,000 18,000 16,000 17,000 18,000 19,000 20,000 Fan Performance, 48AW,AY040,050 Horizontal Discharge Units19,000 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 20,000000 1086 11.10 1114 11.61 1141 12.14 Fan Performance, 48EJ,EK048 Vertical Discharge UnitsRpm Bhp 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.