Carrier 48EJ, EW, EK, EY024-048 15,000 16,000 17,000 18,000 19,000 20,000

Page 36

Table 13 Ð Fan Performance, 48EJ,EK038,044 Ð 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

7,000

429

 

1.70

484

 

2.40

 

536

2.70

584

 

3.10

630

 

3.50

 

 

674

 

3.90

716

4.30

756

 

4.80

8,000

475

 

2.36

525

 

3.09

 

571

3.49

616

 

3.90

658

 

4.31

 

 

699

 

4.74

738

5.17

776

 

5.61

9,000

523

 

3.11

567

 

3.97

 

610

4.39

651

 

4.82

690

 

5.26

 

 

728

 

5.71

765

6.16

801

 

6.62

10,000

571

 

4.00

612

 

5.01

 

651

5.46

689

 

5.91

725

 

6.37

 

 

761

 

6.84

795

7.31

829

 

7.79

11,000

620

 

5.04

658

 

6.22

 

694

6.69

729

 

7.17

763

 

7.65

 

 

796

 

8.14

829

8.64

860

 

9.14

12,000

670

 

6.24

705

 

7.61

 

738

8.10

771

 

8.60

803

 

9.11

 

 

834

 

9.62

865

10.13

894

 

10.65

13,000

720

 

7.61

752

 

9.19

 

784

9.70

814

 

10.23

844

 

10.75

 

 

874

 

11.29

902

11.82

931

 

12.36

14,000

771

 

9.15

801

 

10.97

 

830

11.51

859

 

12.05

887

 

12.60

 

 

915

 

13.15

942

13.71

969

 

14.27

15,000

822

 

10.88

850

 

12.95

 

877

13.52

904

 

14.08

931

 

14.65

 

 

957

 

15.22

983

15.80

1008

 

16.38

16,000

873

 

12.80

899

 

15.16

 

925

15.74

951

 

16.33

976

 

16.92

 

1001

 

17.51

1025

18.11

1049

 

18.71

17,000

924

 

14.91

949

 

17.59

 

974

18.20

998

 

18.80

1022

 

19.41

 

1045

 

20.03

1069

20.64

1092

 

21.26

18,000

976

 

17.24

999

 

20.26

 

1023

20.88

1046

 

21.51

1068

 

22.14

 

1091

 

22.77

1113

23.41

1135

 

24.05

19,000

1027

 

19.77

1050

 

23.17

 

1072

23.82

1094

 

24.46

1115

 

25.11

 

1137

 

25.76

1158

26.42

1179

 

27.07

20,000

1079

 

22.53

1100

 

26.33

 

1122

27.00

1142

 

27.66

1163

 

28.33

 

1183

 

29.00

Ð

Ð

Ð

 

Ð

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

7,000

794

 

5.20

832

 

5.62

 

868

6.06

903

 

6.52

937

 

6.98

 

 

971

 

7.44

1003

7.92

1035

 

8.40

8,000

813

 

6.06

848

 

6.52

 

883

6.98

916

 

7.45

949

 

7.92

 

 

981

 

8.40

1012

8.89

1042

 

9.38

9,000

835

 

7.09

869

 

7.56

 

902

8.04

934

 

8.53

965

 

9.02

 

 

995

 

9.52

1025

10.02

1054

 

10.53

10,000

862

 

8.28

893

 

8.77

 

925

9.27

955

 

9.77

985

 

10.28

 

1014

 

10.79

1043

11.31

1071

 

11.84

11,000

891

 

9.64

921

 

10.15

 

951

10.67

980

 

11.19

1008

 

11.71

 

1036

 

12.24

1064

12.78

1090

 

13.32

12,000

924

 

11.18

952

 

11.71

 

980

12.24

1008

 

12.78

1035

 

13.32

 

1062

 

13.87

1088

14.42

1114

 

14.98

13,000

958

 

12.91

986

 

13.45

 

1012

14.01

1039

 

14.56

1064

 

15.13

 

1090

 

15.69

1115

16.26

1140

 

16.83

14,000

995

 

14.83

1021

 

15.40

 

1046

15.97

1071

 

16.55

1096

 

17.13

 

1120

 

17.71

1144

18.29

1168

 

18.89

15,000

1033

 

16.96

1058

 

17.55

 

1082

18.14

1106

 

18.73

1130

 

19.33

 

1153

 

19.93

1176

20.54

1199

 

21.14

16,000

1073

 

19.31

1097

 

19.92

 

1120

20.52

1143

 

21.14

1165

 

21.75

 

1188

 

22.37

Ð

Ð

Ð

 

Ð

17,000

1114

 

21.88

1137

 

22.51

 

1159

23.13

1181

 

23.76

Ð

 

Ð

 

Ð

 

Ð

Ð

Ð

Ð

Ð

 

 

18,000

1156

 

24.69

1178

 

25.33

 

1199

25.98

Ð

 

Ð

Ð

 

Ð

Ð

 

Ð

 

Ð

Ð

Ð

Ð

 

 

19,000

Ð

 

Ð

Ð

 

Ð

Ð

Ð

Ð

Ð

 

Ð

Ð

 

Ð

 

Ð

Ð

Ð

Ð

Ð

 

 

 

20,000

Ð

 

Ð

Ð

 

Ð

Ð

Ð

Ð

Ð

 

Ð

Ð

 

Ð

 

Ð

Ð

Ð

Ð

Ð

 

 

 

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

AIRFLOW

 

 

 

 

 

 

 

 

 

 

 

3.4

 

3.6

 

 

3.8

(Cfm)

 

 

 

 

 

Rpm

 

Bhp

Rpm

 

Bhp

 

Rpm

 

Bhp

7,000

1066

 

8.88

1096

 

9.38

 

1125

 

9.88

8,000

1072

 

9.88

1101

 

10.39

 

1130

 

10.90

9,000

1083

 

11.04

1111

 

11.56

 

1139

 

12.08

10,000

1098

 

12.37

1125

 

12.90

 

1152

 

13.44

11,000

1117

 

13.86

1143

 

14.41

 

1169

 

14.96

12,000

1139

 

15.54

1164

 

16.11

 

1189

 

16.68

13,000

1164

 

17.41

1188

 

17.99

 

Ð

 

Ð

14,000

1191

 

19.48

Ð

 

Ð

 

Ð

 

Ð

15,000

Ð

 

Ð

Ð

 

Ð

Ð

Ð

 

16,000

Ð

 

Ð

Ð

 

Ð

Ð

Ð

 

17,000

Ð

 

Ð

Ð

 

Ð

Ð

Ð

 

18,000

Ð

 

Ð

Ð

 

Ð

Ð

Ð

 

19,000

Ð

 

Ð

Ð

 

Ð

Ð

Ð

 

20,000

Ð

 

Ð

Ð

 

Ð

Ð

Ð

 

LEGEND

Bhp Ð Brake Horsepower

NOTES:

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

2.Conversion Ð Bhp to watts:

Bhp x 746

Watts =

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 (enter- ing wet bulb) conditions.

36

Image 36
Contents Installation, Start-Up Service Instructions Field Fabricate Ductwork Instructions onUnit Leveling Tolerances Dimensions Degrees and InchesRoof Curb Sizes Weight Unit OperatingSize Ft-in 48EJ,EKD038 48EJE03848EJ,EKD044 48EJE044Base Unit Dimensions, 48EW,EY024-034 Base Unit Dimensions, 48EW,EY038-048 Unit Weight 48EJ,EK,EW,EYD024 48EJ,EK,EW,EYD028 48EJ,EK,EW,EYD03048EJ,EK,EW,EYD034 48EJ,EK,EW,EYD038Physical Data Unit 48EJ,EK,EW,EY4442/4602 4668/4828 4955/5115 Air Distribution Ð Thru-the-Bottom Combustion Fan Housing Location Unit Configuration Default Cooling Default Heating VAVField Control Remote Start/Stop Make Electrical Connections CCN SIOLED Electrical Data RLA LRAFLA LRA MCA Mocp FLA LRA FLAHacr NECQty 044Heating, Air Conditioning Minimum Circuit AmpsGND Ð Ground Terminal BlockDIP PECCCN Connection Approved Shielded Cables Manufacturer Cable Part no2413 or 8772Make Outdoor-Air Inlet Adjustments Color Code RecommendationsRED WhiteAdding Seal Strip to Top of Hood Sides Adding Foam Strip to Hood Side Mounting Angle With Tabs Attached to Filter Track Assembly Psychrometric Chart for Enthalpy Control Barometric Relief Damper and Power Exhaust Mounting Details Pressure Transducer Locations START-UP VFD Supply Air Pressure Set Point Pressure Control VFDSET Point Direct Digital Controls DIP Switch Congura Potentiometer Signal LevelsBuilding Pressure Signal Level VdcPower Exhaust Default Set Points DIP Switch CongurationDIP Switch Factory Settings Airflow 16,000 17,00018,000 19,000528 572 615 656 695 733 769 805 Fan Performance Ð Power Exhaust Motor LimitationsESP Standard Efficiency MotorsSequence of Operation Air Quantity LimitsUser Dened Set Points GAS HEATING, Variable AIR Volume VAV Units DEG. F Reset COMHIR Smoke Control Modes Device Pressurization Smoke Purge Evacuation Fire ShutdownCooling Capacity Staging Table, CV Units With 2 Compressors StagesCompressor Lubrication Manufacturer LubricantEvaporator Fan Service and Replacement Typical Gas Heating SectionEvaporator-Fan Motor Replacement Condenser-Fan AdjustmentBelt Tension Adjustment Protective DevicesGas Valve AHA IFCIfcb TranTypical Power Schematic 48EJ,EK,EW,EY024-034 208/230-3-60 Typical VAV 115-v Control Circuit Typical CV 115-v Control Circuit Typical VAV 24-v Control Circuit Typical CV 24-v Control Circuit Troubleshooting Typical Refrigerant Circuiting 48EJ,EK,EW,EY038,044 Typical Refrigerant Circuiting 48EJ,EK,EW,EY048 IGC Control Heating and Cooling IGC Control Board LED Alarms Control Board LED AlarmsI/O Channel Designations Base Module Ð CV I/O Channel Designations Base Module Ð VAVTerminal no Assignment SPTPackaged Service Training START-UP Checklist General
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Manual 118 pages 46.64 Kb

EW, EY024-048, EK, 48EJ 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.