Carrier 48HJ015-025 installation instructions Physical Data

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Table 1 Ð Physical Data

UNIT SIZE 48

HJD015/HJE015

 

HJE017

 

HJD025

208/230, 460 V

 

575 V

 

 

 

 

 

 

 

 

OPERATING WT (lb)

 

 

 

 

 

 

 

Al/Al*

1640/1660

 

 

2010

 

2235

Unit Al/Cu*

1770/1790

 

 

2160

 

2385

Cu/Cu*

1840/1860

 

 

2250

 

2515

Economizer

110

 

 

 

110

 

110

Roof Curb²

200

 

 

200

 

200

COMPRESSOR

 

 

06D Semi-Hermetic

 

Number

1

 

 

 

2

 

2

Cylinders

6

 

 

 

4

 

6

REFRIGERANT TYPE

 

 

R-22

 

 

 

Charge (lb)

 

 

 

 

 

 

 

System 1

22.50

 

 

14.25

 

17.50

System 2

Ð

 

 

 

15.00

 

17.00

CONDENSER COIL

Copper Tubes, Aluminum or Copper Plate Fins

 

Rows

3

 

 

 

4

 

4

Fins/in.

15

 

 

 

15

 

15

Total Face Area (sq ft)

22.2

 

 

 

22.2

 

22.2

CONDENSER FAN

 

 

Propeller Type, Direct Drive

 

Nominal Cfm

10,500

 

 

10,500

 

14,200

Number...Diameter (in.)

3...22

 

 

3...22

 

2...30

Motor Hp (1075 Rpm)

1¤2

 

 

 

1¤2

 

1...1075

Watts Input (Total)

1090

 

 

1090

 

3400

EVAPORATOR COIL

Copper Tubes, Aluminum or Copper Plate Fins

 

Rows

2

 

 

 

3

 

4

Fins/in.

17

 

 

 

15

 

15

Total Face Area (sq ft)

17.9

 

 

 

17.9

 

17.9

EVAPORATOR FAN

Centrifugal, Adjustable Pitch Belt Drive

 

Quantity...Size (in.)

2...10 x 10

 

2...10 x 10

 

2...12 x 12

 

2...12 x12

Nominal Cfm

5000

 

5000

 

6000

 

8000

Fan Rpm Range

1194-1526

 

1201-1462

 

1238-1494

 

1323-1579

Maximum Allowable Rpm

1550

 

1550

 

1550

 

1550

Motor Pulley Pitch Diameter (in.)

3.4/4.4

 

4.3/5.3

 

5.4/6.6

 

5.8/7.0

Fan Pulley Pitch Diameter (in.)

5.2

 

6.4

 

7.9

 

7.9

Belt, Quantity...Type...Length (in.)

1...AX...42

 

1...B...45

 

1...BX...50

 

1...BX...51

Factory Speed Setting (Rpm)

1293

 

1279

 

1366

 

1451

Motor Hp (Service Factor)

3.7 (1.15)

 

3 (1.15)

 

5 (1.15)

 

10 (1.15)

Motor Frame Size

56H

 

56H

 

184T

 

215T

FURNACE SECTION

 

 

 

 

 

 

 

Rollout Switch Cutout Temp (F)**

190

 

 

 

190

 

190

Burner Ori®ce Diameter (in. ...drill size)

.113...33

 

 

.113...33

 

.113...33

Natural Gas

 

 

 

(1) .055...54/

 

 

 

 

 

Pilot Ori®ce Diameter (Quantity) in. ...drill size

 

 

(1) .055...54

 

(1) .055...54

(1) .055...54

 

 

 

Natural Gas

 

 

(1) .041...59

 

(1) .041...59

(1) .041...59

 

 

 

Thermostat Heat Anticipator Setting

 

 

 

 

 

 

 

 

 

 

 

 

Stage 1

1.2/1.2

 

 

1.2

 

1.2

Stage 2

Ð/0.6

 

 

 

0.6

 

0.6

Gas Valve Quantity

1/2

 

 

 

2

 

2

HIGH-PRESSURE SWITCH

 

 

 

 

 

 

 

Cutout (psig)

 

 

426

 

 

 

Reset (psig)

 

 

320

 

 

 

LOW-PRESSURE SWITCH

 

 

 

 

 

 

 

Cutout (psig)

 

 

7

 

 

 

Reset (psig)

 

 

22

 

 

 

AIR INLET SCREENS

 

 

Cleanable

 

 

 

Economizer, Quantity...Size (in.)

 

 

2...20 x 25 x 1

 

 

 

1...20 x 20 x 1

 

 

 

 

 

RETURN-AIR FILTERS (TYPE)

10% Efficient Ð 2-in. Throwaway Fiberglass

 

Quantity... Size (in.)

 

 

4...20 x 20 x 2

 

 

 

4...16 x 20 x 2

 

 

 

 

 

LEGEND

 

 

 

 

 

 

 

Al Ð Aluminum

 

 

 

 

 

 

 

Cu Ð Copper

 

 

 

 

 

 

 

*Evaporator coil ®n material/condenser coil ®n material.

 

 

 

 

 

 

 

²Weight of 14 in. roof curb.

 

 

 

 

 

 

 

**Rollout switch is manual reset.

 

 

 

 

 

 

 

4

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Contents Safety Considerations ContentsInstallation Accessory Curb Description ``A ``B ``CPackage no Height 50DP900211Unit Maximum Shipping Weight Dimension aUnit Physical Data Base Unit Dimensions, 48HJ015,017 Base Unit Dimensions, 48HJ025 Air Distribution Ð Through-the-Bottom 48HJ017 and 025 Shown Combustion Fan Housing Location Make Electrical Connections Electrical DataEquip GNDUnit Voltage Unit Make Outdoor-Air Inlet Adjustments48HJD015 All 48HJD025, HJE015 HJE017 Economizer Motor Control Module Location Accessory Field-Installed Economizer Adjust START-UPAirflow Ð Fan Performance Data, 48HJ015, 208/230, 460-V UnitsFiop Ð Fan Performance Data, 48HJ015, 575-V Units Fan Performance Data, 48HJ017 Units Air Quantity Limits Fan Performance Data, 48HJ025 UnitsUnit 48HJ Minimum CFM Maximum CFM Accessory/FIOP Economizer Static Pressure in. wg Base Unit OperationUnit CFM Economizer Pressure DropService LubricationEvaporator Fan, 48HJ017,025 Units Evaporator Fan, 48HJ015 UnitsManufacturer Lubricant Belt Tension Adjustment Ð To adjust belt tension Condenser-Fan AdjustmentEconomizer Checkout Procedures High and Low Outdoor-Air TemperaturePilot Adjustment Gas Valve AdjustmentProtective Devices Main Burner RemovalTypical Wiring Schematic 48HJ025 Shown Typical Wiring Schematic 48HJ025 Shown Typical Component Arrangement 48HJ025 Shown AHA IFMIFR CLOPage Page Packaged Service Training Page START-UP Checklist PRE-START-UP

48HJ015-025 specifications

The Carrier 48HJ015-025 is a distinguished series of rooftop packaged units renowned for their efficient performance and reliability in light commercial applications. Designed for a variety of indoor environments, these units are engineered to provide efficient heating and cooling solutions, making them suitable for retail spaces, offices, and other commercial buildings.

One of the main features of the Carrier 48HJ series is its advanced scroll compressor technology, which enhances the overall efficiency of the systems. This type of compressor is known for its durability and quiet operation, providing consistent temperature control while minimizing energy consumption. The use of a scroll compressor contributes to a higher Seasonal Energy Efficiency Ratio (SEER) and Heating Seasonal Performance Factor (HSPF), making these units a smart choice for energy-conscious businesses.

Additionally, the 48HJ series incorporates a multi-speed indoor blower that allows for precise airflow control. This feature ensures optimal indoor comfort by adjusting the air distribution based on the specific heating or cooling needs of the space. The ability to adapt to varying load conditions enhances efficiency and reduces energy wastage.

Another noteworthy characteristic of the Carrier 48HJ015-025 is its robust construction. Built with galvanized steel, the units are designed to withstand harsh environmental conditions, ensuring longevity and minimal maintenance requirements. The powder-painted finish offers corrosion resistance, contributing to the unit’s durability over time.

The series also integrates advanced controls for ease of operation. The user-friendly thermostat enables precise temperature management and can be programmed according to the specific needs of the facility. Moreover, compatibility with Building Management Systems (BMS) facilitates seamless integration into existing infrastructure, enabling remote monitoring and enhanced operational efficiency.

In terms of environmental considerations, the Carrier 48HJ series utilizes R-410A refrigerant, which is known for its reduced impact on the ozone layer compared to older refrigerants. This commitment to sustainability aligns with modern environmental standards and regulations.

Overall, the Carrier 48HJ015-025 stands out as a versatile and efficient rooftop packaged unit, perfect for varying commercial applications. Its combination of advanced technology, reliability, and user-focused design makes it a prominent choice for businesses seeking optimized climate control solutions while ensuring sustainability and energy efficiency.