Carrier 48EW, 48EY024-068, 48AW, 48AY020-060, 48EK, 48AK, 48AJ, 48EJ FLA LRA MCA Mocp EW,EY, 034

Page 40

Table 8 — Electrical Data — 48EJ,EK,EW,EY Units (cont)

UNIT

NOMNAL

VOLTAGE

COMPRESSOR

 

OFM

 

 

IFM

POWER

COMBUSTION

POWER SUPPLY

SIZE

VOLTAGE

RANGE

No. 1

No. 2

 

 

 

EXHAUST

FAN MOTOR

 

 

 

 

 

 

 

 

 

48EJ,EK,

(3 Ph,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Min

Max

RLA

LRA

RLA

LRA

Qty

Hp

 

FLA

Hp

 

FLA

FLA

LRA

FLA

MCA

MOCP*

EW,EY

60 Hz)

 

 

 

(ea)

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

30.8/

0.96

169.9/167.1

225/200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28.0

23.6

41.6

0.96

193.5/190.7

250/225

 

208/230

187

254

57.1

266

57.1

266

2

1

 

5.3

15

 

46.2/

0.96

185.3/181.1

200/200

 

 

 

23.6

41.6

0.96

208.9/204.7

250/250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42.0

 

 

 

 

 

 

 

 

 

 

 

 

20

 

59.4/

0.96

198.5/193.1

250/250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

54.0

23.6

41.6

0.96

222.1/216.7

275/250

 

 

 

 

 

 

 

 

 

 

 

 

10

 

14.0

0.5

77.0

100

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

89.6

110

034

460

414

508

25.6

120

25.6

120

2

1

 

2.7

15

 

21.0

0.5

84.0

100

 

 

12.6

23.6

0.5

96.6

110

 

 

 

 

 

 

 

 

 

 

 

 

20

 

27.0

0.5

90.0

110

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

102.6

125

 

 

 

 

 

 

 

 

 

 

 

 

10

 

11.0

0.5

61.9

80

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

74.5

90

 

575

518

632

20.5

96

20.5

96

2

1

 

2.4

15

 

17.0

0.5

67.9

80

 

 

 

12.6

23.6

0.5

80.5

100

 

 

 

 

 

 

 

 

 

 

 

 

20

 

22.0

0.5

72.9

90

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

85.5

100

 

 

 

 

 

 

 

 

 

 

 

 

10

 

30.8/

0.96

180.5/177.7

225/225

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28.0

23.6

41.6

0.96

204.1/201.3

250/250

 

208/230

187

254

57.1

266

57.1

266

4

1

 

5.3

15

 

46.2/

0.96

195.9/191.7

250/225

 

 

 

23.6

41.6

0.96

219.5/215.3

275/250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42.0

 

 

 

 

 

 

 

 

 

 

 

 

20

 

59.4/

0.96

209.1/203.7

250/250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

54.0

23.6

41.6

0.96

232.7/227.3

275/275

 

 

 

 

 

 

 

 

 

 

 

 

10

 

14.0

0.5

82.4

100

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

95.0

110

038

460

414

508

25.6

120

25.6

120

4

1

 

2.7

15

 

21.0

0.5

89.4

110

 

 

12.6

23.6

0.5

102.0

125

 

 

 

 

 

 

 

 

 

 

 

 

20

 

27.0

0.5

95.4

110

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

108.0

125

 

 

 

 

 

 

 

 

 

 

 

 

10

 

11.0

0.5

66.7

80

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

79.3

90

 

575

518

632

20.5

96

20.5

96

4

1

 

2.4

15

 

17.0

0.5

72.7

90

 

 

 

12.6

23.6

0.5

85.3

100

 

 

 

 

 

 

 

 

 

 

 

 

20

 

22.0

0.5

77.7

90

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

90.3

110

 

 

 

 

 

 

 

 

 

 

 

 

15

 

46.2/

0.96

223.1/218.9

275/275

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42.0

23.6

41.6

0.96

246.7/242.5

300/300

 

208/230

187

254

69.2

345

69.2

345

4

1

 

5.3

20

 

59.4/

0.96

236.3/230.9

300/300

 

 

 

23.6

41.6

0.96

259.9/254.5

300/300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

54.0

 

 

 

 

 

 

 

 

 

 

 

 

25

 

74.8/

0.96

251.7/244.9

300/300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

68.0

23.6

41.6

0.96

275.3/268.5

300/300

 

 

 

 

 

 

 

 

 

 

 

 

15

 

21.0

0.5

96.6

125

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

109.2

125

044

460

414

508

28.8

173

28.8

173

4

1

 

2.7

20

 

27.0

0.5

102.6

125

 

 

12.6

23.6

0.5

115.2

125

 

 

 

 

 

 

 

 

 

 

 

 

25

 

34.0

0.5

109.6

125

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

122.2

150

 

 

 

 

 

 

 

 

 

 

 

 

15

 

17.0

0.5

86.7

110

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

99.3

125

 

575

518

632

26.7

120

26.7

120

4

1

 

2.4

20

 

22.0

0.5

91.7

110

 

 

 

12.6

23.6

0.5

104.3

125

 

 

 

 

 

 

 

 

 

 

 

 

25

 

27.0

0.5

96.7

110

 

 

 

 

 

 

 

 

 

 

 

 

 

12.6

23.6

0.5

109.3

125

See Legend and Notes on page 42.

40

Image 40
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 LocationNumber of Stages Model Number Position Heat Size Htstgtyp 48A,E Series Staged Gas ImplementationStages 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 NEC FLARLA Field Power Wiring Connections GND GroundCCB EquipGND IFCOFC CCN IFC Pesc Carrier Comfort Network Indoor-Fan CircuitIndoor-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 80.5 79.5 48EJ,EK,EW,EY024-054 Unit Size120.5 119.5 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 ClosedFan Performance, 48AJ,AK020-030 Vertical Discharge Units DIP Switch Factory SettingsAirflow 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 15,00017,000 18,000 Fan Performance, 48AW,AY035 Horizontal Discharge Units13,000 14,000 15,000 16,000 17,000 18,000 19,000 20,000 Fan Performance, 48AW,AY040,050 Horizontal Discharge Units16,000 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 20,000Rpm Bhp Fan Performance, 48EJ,EK048 Vertical Discharge Units000 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
Related manuals
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.