Carrier 48EK AT Each Corner % 48EJ,EW,EK,EYD024, 48EJ,EW,EK,EYD028, 48EJ,EW,EK,EYD030, 48AJ,AKD

Page 20

48EJ,EK,EW,EY UNITS

 

 

CENTER OF GRAVITY

 

 

PERCENT OF TOTAL WEIGHT

 

UNIT

Inches

 

Millimeters

 

AT EACH CORNER (%)

 

 

A

 

B

A

B

1

2

3

4

48EJ,EW,EK,EYD024

72.4

 

42.2

1839

1072

21.0

22.8

29.2

26.9

48EJ,EWE024

73.3

 

42.7

1862

1085

21.6

22.9

28.6

27.0

48EJ,EW,EK,EYD028

69.6

 

44.0

1768

1118

21.1

21.1

28.9

28.9

48EJ,EWE028

70.1

 

44.3

1781

1125

21.4

21.1

28.6

29.0

48EJ,EW,EK,EYD030

69.6

 

44.0

1768

1118

21.1

21.1

28.9

28.9

48EJ,EWE030

70.1

 

44.3

1781

1125

21.4

21.1

28.6

29.0

48EJ,EW,EK,EYD034

69.6

 

44.0

1768

1118

21.1

21.1

28.9

28.9

48EJ,EWE034

70.1

 

44.3

1781

1125

21.4

21.1

28.6

29.0

48EJ,EW,EK,EYD038

92.7

 

46.9

2355

1191

23.0

20.1

26.6

30.3

48EJ,EWE038

94.1

 

47.2

2390

1199

23.5

20.3

26.1

30.2

48EJ,EW,EK,EYD044

89.3

 

46.9

2268

1191

22.1

19.4

27.3

31.2

48EJ,EWE044

90.8

 

47.2

2306

1199

22.7

19.6

26.8

31.0

48EJ,EW,EK,EYD048

87.7

 

46.5

2228

1181

21.6

19.2

27.9

31.3

48EJ,EWE048

89.2

 

46.8

2226

1189

22.1

19.4

27.4

31.1

48EJ,EW,EK,EYD054

130.9

 

46.9

3325

1192

22.4

19.6

27.0

30.9

48EJ,EWE054

133.8

 

47.4

3397

1204

23.1

19.8

26.3

30.7

48EJ,EW,EK,EYD058

132.1

 

47.5

3354

1207

22.9

19.5

26.5

31.1

48EJ,EWE058

139.5

 

49.6

3544

1260

25.3

19.6

24.1

31.1

48EJ,EW,EK,EYD064

125.3

 

45.2

3181

1149

20.7

19.6

29.1

30.7

48EJ,EWE064

132.2

 

47.2

3359

1199

22.8

19.7

26.7

30.8

48EJ,EW,EK,EYD068

127.7

 

46.6

3242

1184

21.7

19.3

27.7

31.2

48EJ,EWE068

134.7

 

48.6

3422

1235

23.9

19.4

25.4

31.3

RIGGING WEIGHTS 48AJ,AK,AW,AY UNITS

UNIT

 

 

 

MAXIMUM UNIT WEIGHTS (lb)*

 

 

 

020

025

027

 

030

035

 

040

050

060

 

 

 

48AJ,AKD

5142

5228

5325

 

5325

6004

 

6514

6725

8930

48AJ,AKE

5222

5308

5405

 

5405

6164

 

6674

6885

9170

48AW,AYD

5182

5268

5365

 

5365

6044

 

6554

6765

8970

48AW,AYE

5262

5348

5445

 

5445

6204

 

6714

6925

9210

*Includes outdoor-air hoods, filters, largest available indoor-fan motor, modulating power exhaust, and the largest available variable frequency drive (VFD).

NOTES:

1. Center of gravity.

2.On 020-050 includes 500 lbs and on 060 725 lbs for modulating power exhaust.

3.On 020-050 includes 170 lbs and on 060 55 lbs for economizer hoods. Includes 45 lbs for the economizer hood packaging.

4.Add 220 lbs for copper coil on the 020-030 size.

5.Add 284 lbs for copper coil on the 035 size.

6.Add 380 lbs for copper coil on the 040-050 size.

7.Add 651 lbs for copper coil on the 060 size.

48EJ,EK,EW,EY UNITS

UNIT

 

 

 

 

MAXIMUM UNIT WEIGHTS (lb)*

 

 

 

 

024

028

030

034

038

044

048

054

058

064

068

 

48EJ,EKD

5142

5228

5304

5304

5943

6237

6622

8029

8377

8755

8930

48EJE

5222

5384

5384

5384

6103

6397

6782

8269

8617

8995

9170

48EW,EYD

5182

5404

5344

5344

5983

6277

6662

8069

8417

8795

8970

48EWE

5262

5492

5424

5424

6143

6437

6822

8309

8657

9035

9210

*Includes outdoor-air hoods, filters, largest available indoor-fan motor, modulating power exhaust, and the largest available variable frequency drive (VFD).

NOTES:

1. Center of gravity.

2.Sizes 024-048 includes 500 lb and sizes 054-068 includes 725 lb for modulating power exhaust.

3.Sizes 024-048 includes 170 lb and sizes 054-068 includes 255 lb for economizer hoods.

4.Economizer hood packaging includes 45 lb.

5.For sizes 024-034 add 220 lb for copper coil.

6.For sizes 038-044 add 284 lb for copper coil.

7.For 048 size add 380 lb for copper coil.

8.For 054 size add 271 lb for copper coil.

9.For 058 size add 407 lb for copper coil.

10.For 064 size add 489 lb for copper coil.

11.For 068 size add 651 lb for copper coil.

Fig. 17 — Rigging Information (cont)

20

Image 20
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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Manual 64 pages 39.75 Kb Manual 36 pages 38.76 Kb

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.