Carrier 48AY020-060, 48EW, 48AW, 48EK Fan Performance, 48EJ,EK048 Vertical Discharge Units, Rpm Bhp

Page 75

Table 29 — Fan Performance, 48EJ,EK048 — Vertical Discharge Units

(For EW,EY units, reduce net available external static pressure by 0.5 in. wg)

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

9,000

528

 

3.20

572

 

4.00

615

 

4.40

656

 

4.90

695

 

5.30

733

 

5.80

769

 

6.20

805

 

6.70

10,000

577

 

4.10

617

 

5.10

657

 

5.50

694

 

6.00

731

 

6.40

766

 

6.90

801

 

7.40

834

 

7.90

11,000

627

 

5.10

664

 

6.30

700

 

6.80

735

 

7.30

769

 

7.70

802

 

8.20

835

 

8.70

866

 

9.20

12,000

677

 

6.30

711

 

7.70

745

 

8.20

778

 

8.70

809

 

9.20

841

 

9.70

871

 

10.20

901

 

10.80

13,000

728

 

7.71

760

 

9.31

791

 

9.83

822

 

10.35

851

 

10.88

881

 

11.42

909

 

11.95

938

 

12.50

14,000

779

 

9.28

809

 

11.11

838

 

11.65

867

 

12.20

895

 

12.75

923

 

13.31

950

 

13.87

976

 

14.43

15,000

830

 

11.03

858

 

13.13

886

 

13.69

913

 

14.26

939

 

14.83

966

 

15.41

991

 

15.99

1017

 

16.57

16,000

882

 

12.97

908

 

15.36

934

 

15.95

960

 

16.54

985

 

17.13

1010

 

17.73

1034

 

18.33

1058

 

18.93

17,000

934

 

15.12

959

 

17.83

983

 

18.44

1008

 

19.05

1031

 

19.66

1055

 

20.28

1078

 

20.89

1101

 

21.52

18,000

986

 

17.47

1010

 

20.53

1033

 

21.16

1056

 

21.79

1078

 

22.42

1101

 

23.06

1123

 

23.70

1145

 

24.34

19,000

1038

 

20.05

1061

 

23.49

1083

 

24.13

1105

 

24.78

1126

 

25.44

1147

 

26.09

1169

 

26.75

1190

 

27.41

20,000

1091

 

22.84

1112

 

26.69

1133

 

27.36

1154

 

28.03

1174

 

28.70

1195

 

29.37

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

9,000

839

 

7.10

873

 

7.62

905

 

8.10

937

 

8.59

968

 

9.08

999

 

9.57

1028

 

10.08

1057

 

10.58

10,000

866

 

8.40

898

 

8.85

929

 

9.34

959

 

9.85

989

 

10.36

1018

 

10.87

1047

 

11.39

1075

 

11.91

11,000

897

 

9.70

927

 

10.24

956

 

10.76

985

 

11.28

1013

 

11.81

1041

 

12.34

1068

 

12.87

1095

 

13.41

12,000

930

 

11.30

958

 

11.82

986

 

12.36

1014

 

12.90

1041

 

13.44

1067

 

13.99

1093

 

14.54

1119

 

15.10

13,000

965

 

13.04

992

 

13.59

1019

 

14.15

1045

 

14.71

1071

 

15.27

1096

 

15.84

1121

 

16.41

1146

 

16.98

14,000

1002

 

14.99

1028

 

15.56

1054

 

16.14

1079

 

16.71

1103

 

17.30

1127

 

17.88

1151

 

18.47

1175

 

19.06

15,000

1041

 

17.15

1066

 

17.74

1090

 

18.34

1114

 

18.93

1138

 

19.53

1161

 

20.13

1184

 

20.74

 

16,000

1082

 

19.52

1105

 

20.14

1128

 

20.75

1151

 

21.37

1174

 

21.99

1196

 

22.61

 

 

17,000

1124

 

22.14

1146

 

22.77

1168

 

23.40

1190

 

24.03

 

 

 

 

18,000

1166

 

24.98

1188

 

25.63

 

 

 

 

 

 

19,000

 

 

 

 

 

 

 

 

20,000

 

 

 

 

 

 

 

 

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

AIRFLOW

 

3.4

 

3.6

 

3.8

(Cfm)

 

 

 

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

 

9,000

1086

11.10

1114

11.61

1141

12.14

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:

10,000

1102

12.44

1129

12.97

1155

13.51

Watts =

Bhp x 746

11,000

1122

13.96

1147

14.51

1173

15.06

12,000

1144

15.66

1169

16.23

1194

16.80

13,000

1170

17.56

1194

18.14

14,000

1198

19.66

15,000

16,000

17,000

18,000

19,000

20,000

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.

75

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Contents Installation, Start-Up Service Instructions Instructions on Make Unit Duct ConnectionsRoof 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 % 48EJ,EW,EK,EYD030 Rigging Weights 48AJ,AK,AW,AY UnitsAT Each Corner % 48EJ,EW,EK,EYD024 48EJ,EW,EK,EYD028Unit 48AJ,AK,AW,AY Physical Data 48AJ,AK,AW,AY UnitsQuantity Rows...Fins/in Unit 48EJ,EK,EW,EY Physical Data 48EJ,EK,EW,EY Units06D537 06EA250 06EA265 Quantity...Type Ckt 1, Ckt Operating Weights Air Distribution Thru-the-Bottom Evaporator Fan Motor DataCombustion Fan Housing Location Install Flue Hood48A,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 DIP CCNCOM SIORLA LRA Unbalanced 3-Phase Supply VoltageElectrical Data 48AJ,AK,AW,AY Units Min MaxQty 30.8/28.0 180.5/177.7 225/225 236.3/230.9 MCA Mocp EW,EY Electrical Data 48EJ,EK,EW,EY UnitsRange Exhaust FAN Motor FLA LRAFLA LRA MCA Mocp EW,EY 54.0 23.6 41.6 FLA NECRLA GND Ground Field Power Wiring ConnectionsIFC CCBEquip GNDOFC Carrier Comfort Network Indoor-Fan Circuit CCN IFC PescIndoor-Fan Relay Terminal Block Color Code Recommendations CCN Connection Approved Shielded CablesSpace Temperature Averaging Wiring Make Outdoor-Air Inlet AdjustmentsAdding 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 Control Control Point Curve APPROX. DEG Psychrometric Chart for Enthalpy ControlBarometric 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 Side Return Air Conversion Field ModificationsSTART-UP In. wg Pressure Control Signal VFD SET PointParameter Group Default Value Carrier Default Program Parameter ValuesMotor Standard Efficiency High Efficiency Typical Factory Wiring Optional Field Wiring Building Pressure Signal Level Closed DIP Switch ConfigurationSetting OpenDIP Switch Factory Settings Fan Performance, 48AJ,AK020-030 Vertical Discharge UnitsAirflow 18,000 Fan Performance, 48AJ,AK035 Vertical Discharge Units16,000 17,00017,000 18,000 19,000 20,000 Fan Performance, 48AJ,AK040,050 Vertical Discharge Units19,000 20,000Fan Performance, 48AJ,AK060 Vertical Discharge Units 11,000 12,000 13,000 14,000 15,000 Fan Performance, 48AW,AY020-030 Horizontal Discharge UnitsFan 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 26,000 27,000 Fan Performance, 48AW,AY060 Horizontal Discharge UnitsFan Performance, 48EJ,EK024,034 Vertical Discharge Units 15,000 16,000 17,000 18,000 19,000 20,000 Fan Performance, 48EJ,EK038,044 Vertical Discharge Units19,000 20,000 Available External Static Pressure in. wg Rpm Bhp 000 1066 1096 1125Fan Performance, 48EJ,EK048 Vertical Discharge Units Rpm Bhp000 1086 11.10 1114 11.61 1141 12.14 10,000 949 13.81 970 14.54 990 15.26 Fan Performance, 48EJ,EK054-068 Vertical Discharge Units20,000 21,000 22,000 23,000 24,000 25,000 26,000 27,000 Fan Performance, 48EW,EY054-068 Horizontal Discharge Units26,000 27,000 Available External Static Pressure in. wg 10,000 956 12.99 976 13.66 996 14.32ESP Airflow LOW Speed Medium Speed High SpeedAir Quality Limits Motor LimitationsSequence of Operation Software Control Link Points User Defined Set PointsPage COM Common Heat Interlock Relay WiringInput Description Staged Gas System ComponentsStage Gas System Inputs/Outputs Function LocationNavigator Display Menu Structure Navigator DisplayCondition Occupied Morning Temperature Software HeatVersion Enabled DEG. F ResetField-Supplied Smoke Detector Wiring Stages Smoke Control ModesCooling Capacity Staging Table, CV Units with 2 Compressors Device Pressurization Smoke Purge Evacuation Fire ShutdownService Typical Gas Heating Section Manufacturer Lubricant LubricationCondenser-Fan Adjustment Evaporator Fan Service and ReplacementBelt Tension Adjustment To adjust belt tension Evaporator-Fan Motor ReplacementCooling Charging Chart 48EJ,EK,EW,EY024-034 Gas Valve AdjustmentCooling Charging Chart 48EJ,EK,EW,EY054-068 Protective Devices 20 HP 208/230-3-60 Voltage WireIndoor Voltage Wire 06D-537 208/230-3-60 Following fan motors have twoTypical 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 Control Board LED Alarms IGC Control Board LED AlarmsIAQ O Channel Designations Base Module CVO Channel Designations Base Module VAV Terminal no AssignmentService 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.