Carrier 48EY024-068, 48EW, 48AW, 48AY020-060, 48EK, 48AK, 48EJ Base Unit Dimensions 48AJ,AK060

Page 9

NOTES:

 

5. Bottom ducts designed to be attached to accessory roof curb. If unit is mounted

1. Weights include economizer (standard).

 

on dunnage, it is recommended the ducts must be supported by cross braces as

2.

Center of Gravity.

 

done on accessory roof curb.

 

6. Base unit weights include outdoor air hoods and filters (indoor fan motor is not

3. Do

not locate adjacent units with flue

dis-

included). Add indoor motor, FIOPs and accessories for total operating weight.

7. VAV motor weights include indoor motor, VFD, compressor electric unloaders,

charge facing economizer inlet.

 

 

VFD transducer and associated wiring.

Min Clearances to be:

 

 

8. Dimensions are in inches [mm].

 

Adjacent Units: 15′-0″[4572].

 

 

 

 

 

 

 

 

 

 

 

Top of Units: No Overhang.

 

 

 

 

 

 

 

 

 

Condenser Coil: 4′-0″[1219].

 

 

 

 

 

 

 

 

 

Economizer Side: 6′-0″[1829].

 

 

 

 

 

 

 

 

 

Heat Side: 4′-0″[1219].

 

 

 

 

 

 

 

 

 

Filter Access Side: 15′-0″[4572]. (For

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

removal of evaporator coil.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. For smaller service and operational clear-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ances contact Carrier Application Engineer-

 

 

 

 

 

 

 

 

ing Department.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BASE UNIT WEIGHTS (See Note 6) lbs (kg)

 

 

 

 

 

060

 

 

 

 

 

 

 

 

48AJD/AKD

 

8930 (4051)

 

 

 

 

 

 

 

 

48AJE

 

9170 (4159)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CENTER OF GRAVITY

% OF TOTAL WEIGHT

 

UNIT SIZE

 

 

ft-in.

 

Millimeters

AT EACH CORNER

 

 

 

 

 

A

B

 

A

B

1

2

3

4

 

48AJD/AKD060

10-711/16

3-1019/32

 

3242

1184

21.7

19.3

27.7

31.2

 

48AJE060

11-211/16

4-19/32

 

3422

1235

23.9

19.4

25.4

31.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

Fig. 7 — Base Unit Dimensions — 48AJ,AK060

Page 8 Page 10
Image 9
Page 8 Page 10
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 % AT Each Corner % 48EJ,EW,EK,EYD024 Rigging Weights 48AJ,AK,AW,AY Units48EJ,EW,EK,EYD028 48EJ,EW,EK,EYD030Unit 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 COM CCNSIO DIPElectrical Data 48AJ,AK,AW,AY Units Unbalanced 3-Phase Supply VoltageMin Max RLA LRAQty 30.8/28.0 180.5/177.7 225/225 236.3/230.9 Range Exhaust FAN Motor Electrical Data 48EJ,EK,EW,EY UnitsFLA LRA MCA Mocp EW,EYFLA LRA MCA Mocp EW,EY 54.0 23.6 41.6 FLA NECRLA GND Ground Field Power Wiring ConnectionsEquip CCBGND IFCOFC 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 Setting DIP Switch ConfigurationOpen ClosedDIP Switch Factory Settings Fan Performance, 48AJ,AK020-030 Vertical Discharge UnitsAirflow 16,000 Fan Performance, 48AJ,AK035 Vertical Discharge Units17,000 18,00019,000 Fan Performance, 48AJ,AK040,050 Vertical Discharge Units20,000 17,000 18,000 19,000 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 19,000 20,000 Available External Static Pressure in. wg Fan Performance, 48EJ,EK038,044 Vertical Discharge UnitsRpm Bhp 000 1066 1096 1125 15,000 16,000 17,000 18,000 19,000 20,000Fan 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 Units26,000 27,000 Available External Static Pressure in. wg Fan Performance, 48EW,EY054-068 Horizontal Discharge Units10,000 956 12.99 976 13.66 996 14.32 20,000 21,000 22,000 23,000 24,000 25,000 26,000 27,000ESP 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 WiringStage Gas System Inputs/Outputs Staged Gas System ComponentsFunction Location Input DescriptionNavigator Display Menu Structure Navigator DisplayVersion Enabled Occupied Morning Temperature Software HeatDEG. F Reset ConditionField-Supplied Smoke Detector Wiring Cooling Capacity Staging Table, CV Units with 2 Compressors Smoke Control ModesDevice Pressurization Smoke Purge Evacuation Fire Shutdown StagesService Typical Gas Heating Section Manufacturer Lubricant LubricationBelt Tension Adjustment To adjust belt tension Evaporator Fan Service and ReplacementEvaporator-Fan Motor Replacement Condenser-Fan AdjustmentCooling Charging Chart 48EJ,EK,EW,EY024-034 Gas Valve AdjustmentCooling Charging Chart 48EJ,EK,EW,EY054-068 Protective Devices Indoor Voltage Wire 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 Control Board LED Alarms IGC Control Board LED AlarmsO Channel Designations Base Module VAV O Channel Designations Base Module CVTerminal no Assignment IAQService 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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