Carrier 48AY020-060, 48EW, 48EY024-068 Evaporator Fan Motor Data, Air Distribution Thru-the-Bottom

Page 27

Table 3 — Evaporator Fan Motor Data

UNIT

UNIT

 

 

FAN

 

MOTOR

 

 

FAN

 

 

 

 

MOTOR

 

SHEAVE

BUSHING

 

SHEAVE

BUSHING

 

BELT

SIZE

SIZE

MOTOR

SHAFT

MOTOR

FAN

BELT

SHAFT DIA.

PITCH

DIAMETER

PITCH

DIAMETER

TENSION

48AJ,AK,

48EJ,EK,

HP

(in.)

SPEED

SHEAVE

DIAMETER

(in.)

SHEAVE

DIAMETER

(in.)

(Quantity)

(lb at .25 in.)

AW,AY

EW,EY

 

 

(rpm)

 

(in.)

 

 

(in.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

020

024

5

1.125

717

BK55

4.9

NONE — 1.125

1B5V124

12.4

B—1.9375

BX56

8

10

1.375

924

2BK50

4.4

NONE — 1.375

2B5V86

8.6

B—1.9375

(2) BX50

8

 

 

15

1.625

1096

2B5V56

5.7

B — 1.625

2B5V90

9.1

B—1.9375

(2) 5VX530

9

025

028

7.5

1.375

773

BK60H

5.4

H — 1.375

1B5V124

12.4

B—1.9375

BX56

10

10

1.375

962

1B5V60

6.1

H — 1.375

1B5V110

11.1

B—1.9375

5VX570

11

 

 

15

1.625

1106

2B5V54

5.5

B — 1.625

2B5V86

8.7

B—1.9375

(2) 5VX530

9

027

030

10

1.375

848

2BK50

4.4

NONE — 1.375

2B5V94

9.4

B—1.9375

(2) BX50

8

15

1.625

1059

2B5V48

4.9

B — 1.625

2B5V80

8.1

B—1.9375

(2) 5VX500

10

 

 

20

1.625

1187

2B5V58

5.9

B — 1.625

2B5V86

8.7

B—1.9375

(2) 5VX530

11

030

034

10

1.375

884

2BK50

4.4

H — 1.375

2B5V90

9.0

B—1.9375

(2) BX50

8

15

1.625

1096

2B5V56

5.7

B — 1.625

2B5V90

9.1

B—1.9375

(2) 5VX530

9

 

 

20

1.625

1187

2B5V58

5.9

B — 1.625

2B5V86

8.7

B—1.9375

(2) 5VX530

11

035

038

10

1.375

779

1B5V60

6.1

NONE — 1.375

1B5V136

13.7

B—1.9375

5VX610

12

15

1.625

976

2B5V52

5.3

B — 1.625

2B5V94

9.5

B—1.9375

(2) 5VX530

10

 

 

20

1.625

1050

2B5V56

5.7

B — 1.625

2B5V94

9.5

B—1.9375

(2) 5VX550

11

040

044

15

1.625

976

2B5V52

5.3

B — 1.625

2B5V94

9.5

B—1.9375

(2) 5VX530

10

20

1.625

1050

2B5V56

5.7

B — 1.625

2B5V94

9.5

B—1.9375

(2) 5VX550

11

 

 

25

1.875

1182

2B5V74

7.5

B — 1.875

2B5V110

11.1

B—1.9375

(2) 5VX590

11

050

048

20

1.625

993

2B5V62

6.3

B — 1.625

2B5V110

11.1

B—1.9375

(2) 5VX570

11

25

1.875

1134

2B5V80

8.1

B — 1.875

2B5V124

12.5

B—1.9375

(2) 5VX630

11

 

 

30

1.875

1182

2B5V74

7.5

B — 1.875

2B5V110

11.1

B—1.9375

(2) 5VX590

13

—

054

15

1.625

741

2B5V46

4.7

B — 1.625

2B5V110

11.1

B—1.9375

(2) 5VX550

11

20

1.625

962

2B5V60

6.1

B — 1.625

2B5V110

11.1

B—1.9375

(2) 5VX570

12

 

 

25

1.875

1134

2B5V80

8.1

B — 1.875

2B5V124

12.5

B—1.9375

(2) 5VX630

12

—

058

20

1.625

930

2B5V58

5.9

B — 1.625

2B5V110

11.1

B—1.9375

(2) 5VX570

13

25

1.875

1056

2B5V66

6.7

B — 1.875

2B5V110

11.1

B—1.9375

(2) 5VX590

14

 

 

30

1.875

1182

2B5V74

7.5

B — 1.875

2B5V110

11.1

B—1.9375

(2) 5VX590

14

060

064

25

1.875

1019

3B5V52

5.3

B — 1.875

3B5V90

9.1

B—1.9375

(3) 5VX530

12

30

1.875

1134

2B5V80

8.1

B — 1.875

2B5V124

12.5

B—1.9375

(2) 5VX630

14

 

 

40

2.125

1214

2B5V94

9.4

B — 2.125

2B5V136

13.6

B—1.9375

(2) 5VX650

15

—

068

25

1.875

938

2B5V66

6.7

B — 1.875

2B5V124

12.5

B—1.9375

(2) 5VX610

14

30

1.875

1087

3B5V58

5.9

B — 1.875

3B5V94

9.5

B—1.9375

(3) 5VX550

13

 

 

40

2.125

1214

2B5V94

9.4

B — 2.125

2B5V136

13.6

B—1.9375

(2) 5VX650

15

NOTES:

1.

Motor shaft speed is 1750 rpm. The fan shaft diameter is 115/16 inches.

2.

All indoor fan motors meet the minimum efficiency requirements

 

as established by the Energy Policy Act of 1992 (EPACT), effective

 

October 24, 1997.

Fig. 18 — Air Distribution — Thru-the-Bottom

Fig. 19 — Air Distribution — Thru-the-Side

27

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Image 27
Page 26 Page 28
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.
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