Carrier Complete Guide to Heat Pump Models 50JS: Specifications and Features

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Table 1AÐPhysical Data

UNIT SIZE

50JS018

 

50JS024

50JS030

 

50JS036

50JS042

 

50JS048

50JS060

NOMINAL CAPACITY (ton)

1-1/2

 

2

2-1/2

 

2-1/2

3-1/2

 

4

5

 

 

 

 

 

 

 

 

 

 

 

OPERATING WEIGHT (lb)

283

 

289

287

 

291

323

 

353

418

 

 

 

 

 

 

 

 

 

 

 

COMPRESSOR QUANTITY

 

 

 

 

 

1

 

 

 

 

TYPE

 

RECIPROCATING COMPRESSOR

 

 

SCROLL COMPRESSOR

 

 

 

 

 

 

 

 

 

 

 

REFRIGERANT

 

 

 

 

 

R-22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REFRIGERANT METERING DEVICE

 

 

 

 

 

Accurater ®

 

 

 

 

Refrigerant (R-22) Quantity (lb.)

5.6

 

5.2

5.8

 

7.1

7.6

 

7.8

8.6

 

 

 

 

 

 

 

 

 

 

 

ORIFICE ID (in.)

0.053

 

0.061

0.068

 

0.078

0.078

 

0.088

0.093

 

 

 

 

 

 

 

 

 

 

 

ORIFICE OD (in.)

0.040

 

0.049

2@0.042

 

2@0.046

2@0.052

 

2@0.057

2@0.061

OUTDOOR COIL

1....17

 

1....17

1....17

 

2....17

2....17

 

2....17

2....17

Rows...Fins/in.

 

 

 

10.2

 

12.0

12.0

 

10.3

10.3

 

11.6

11.6

Face Area (sq ft)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR FAN

2400

 

2400

2400

 

2800

2400

 

3300

3300

Nominal Airflow (CFM)

 

 

 

22

 

22

22

 

22

22

 

22

22

Diameter

 

 

 

1/8 (825)

 

1/8 (825)

1/8 (825)

 

1/4 (1100)

1/8 (825)

 

1/4 (1100)

1/4 (1100)

Motor HP (RPM)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INDOOR COIL

2....15

 

2....15

3....15

 

3....15

4....15

 

3....15

4....15

Rows...Fins/in.

 

 

 

3.7

 

3.7

3.7

 

3.7

3.7

 

4.7

4.7

Face Area (Sq Ft)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INDOOR BLOWER

700

 

800

1000

 

1200

1250

 

1600

2000

Nominal Airflow (CFM)

 

 

 

10x10

 

10x10

11x10

 

11x10

11x10

 

11x10

11x10

Size (in.)

 

 

 

1/8

 

1/4

1/4

 

1/2

3/4

 

3/4

1

Motor (HP)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RETURN-AIR FILTERS (in.)

20x20x1

 

20x20x1

20x20x1

 

20x24x1

24x30x1

 

24x30x1

24x30x1

Throwaway

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 1BÐPhysical Data

UNIT SIZE

50JX024

50JX030

50JX036

 

50JX042

50JX048

50JX060

 

 

 

 

 

 

 

 

NOMINAL CAPACITY (ton)

2

2 1/2

3

 

3-1/2

4

5

OPERATING WEIGHT (lb)

299

320

328

 

350

355

420

 

 

 

 

 

 

 

 

COMPRESSOR QUANTITY

 

 

 

1

 

 

 

 

 

 

 

 

 

TYPE

 

 

SCROLL COMPRESSOR

 

 

REFRIGERANT

 

 

 

R-22

 

 

 

 

 

 

 

 

 

REFRIGERANT METERING DEVICE

 

 

Accurater ®

 

 

 

 

 

 

 

 

 

 

Refrigerant (R-22) Quantity (lb.)

5.5

6.4

7.0

 

10.8

10.4

12.3

 

 

 

 

 

 

 

 

ORIFICE ID (in.)

0.065

0.073

0.076

 

0.080

0.088

0.0.93

ORIFICE OD (in.)

0.055

0.065

0.067

 

2@0.052

2@0.057

2@0.063

 

 

 

 

 

 

 

 

OUTDOOR COIL

1...17

2...17

2...17

 

2...17

2...17

2...17

Rows...Fins/in.

 

14.6

10.9

10.9

 

14.4

14.4

16.4

Face Area (sq ft)

 

 

 

 

 

 

 

 

OUTDOOR FAN

2350

2350

2800

 

2800

3300

3300

Nominal Airflow (CFM)

 

22

22

22

 

22

22

22

Diameter

 

1/8 (825)

1/8 (825)

1/4 (1100)

 

1/8 (825)

1/4 (1100)

1/4 (1100)

Motor HP (RPM)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INDOOR COIL

3...15

3...15

4...15

 

4..15

4...15

4...15

Rows...Fins/in.

 

3.7

3.7

3.7

 

4.7

4.7

5.7

Face Area (Sq Ft)

 

 

 

 

 

 

 

 

INDOOR BLOWER

800

1000

1200

 

1400

1600

2000

Nominal Airflow (CFM)

 

10x10

11x10

11x10

 

11x10

11x10

11x10

Size (in.)

 

1/4

1/4

1/2

 

3/4

3/4

1

Motor (HP)

 

 

 

 

 

 

 

 

RETURN-AIR FILTERS (in.)

20x20x1

20x20x1

20x24x1

 

24x30x1

24x30x1

24x30x1

Throwaway

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.

Table 2AÐMinimum Airflow for Reliable Electric Heater Operation (Cfm)

SIZE

50JS018

50JS024

50JS030

50JS036

50JS042

50JS048

50JS060

AIRFLOW (CFM)

650

800

1000*

1200

1400

1600

2000

 

 

 

 

 

 

 

 

Table 2BÐMinimum Airflow for Reliable Electric Heater Operation (Cfm)

SIZE

50JX024

50JX030

50JX036

50JX042

50JX048

50JX060

 

 

 

 

 

 

 

AIRFLOW (CFM)

800

1000*

1200

1400

1600

2000

 

 

 

 

 

 

 

* The 030 size models must be run on medium or high speed when used in conjunction with 15 Kw electric heat accessory.

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Contents Safety Considerations Receiving and InstallationMaintenance TroubleshootingElectrical Characteristics Unit Weight Unit Height Center of Gravity50JX048 IN. MM 50JS04850JS060 50JX042Unit Size ODS Catalog Number Receiving and InstallationÐGeneral ÐCheck EquipmentÐRig and Place Unit InstallationÐProvide Unit Support ÐProvide ClearancesUnit Maximum Weight ÐSelect and Install DuctworkÐProvide for Condensate Disposal BÐPhysical Data AÐPhysical DataC99013 ÐInstall Electrical ConnectionsC99061 C99030A00073 ÐWiring SchematicsA00074 A00075 TDR Time Delay Relay Thermostat Heating Tran TransformerRLA LRA FLA AÐElectrical DataÐ50JSMocp → BÐElectrical DataÐ50JX Rated Load Amps Full Load AmpsLocked Rotor Amps Minimum Circuit Amps Mocp Maximum Overcurrent ProtectionSTART-UP Special Procedures for 208-V OperationÐStart-Up Adjustments PRE-START-UPÐTypical Heat Pump Operation, Heating Mode AÐWet Coil Air Delivery Unit 50JS 018-060 Deduct 10% for Checking and Adjusting Refrigerant ChargeUnit Motor Speed External Static Pressure IN. WG BÐWet Coil Air Delivery Unit 50JX 024-060 Deduct 10% for Speed Indoor Airflow and Airflow AdjustmentsC00031 MaintenanceC00030 C00032C99032 C99031C99033 C99035Indoor Blower and Motor AIR FilterOutdoor FAN C99097 System InformationC99029 Symptom Cause Remedy ÐCooling and Heating Troubleshooting ChartSTART-UP Checklist Remove and Store in JOB File Cooling and Heating Troubleshooting Chart contdPage Page Book Tab 5a 5a Catalog No Form 50JS,JX-1SI Replaces 50JX-2SI

50JS specifications

The Carrier 50JS is a high-performance rooftop unit designed for commercial applications, combining advanced technology with energy efficiency to deliver optimal heating and cooling performance. Its compact design allows for easy installation, making it an ideal choice for various settings such as retail spaces, schools, and office buildings.

One of the standout features of the Carrier 50JS is its innovative energy efficiency. Equipped with a high-efficiency scroll compressor, it significantly reduces energy consumption while providing reliable climate control. This model boasts a commendable SEER (Seasonal Energy Efficiency Ratio) rating, which translates to lower utility bills and a reduced carbon footprint, meeting modern energy efficiency standards.

The 50JS unit utilizes R-410A refrigerant, an environmentally friendly option that contributes to its low global warming potential compared to traditional refrigerants. This aligns with Carrier's commitment to sustainability and reducing environmental impact.

Another significant characteristic of the 50JS is its advanced controls and intelligent building integration capabilities. The unit comes with a microprocessor-based control system that allows for precise temperature management and can be easily integrated into building automation systems. This feature enhances user experience, providing real-time data and better management of HVAC operations.

Noise reduction technology is also a key design focus of the Carrier 50JS. The unit incorporates sound-attenuating materials and features that minimize operational noise, making it suitable for noise-sensitive environments like offices and educational institutions.

In terms of air quality, the 50JS offers various filtration options, including high-efficiency filters that remove airborne particulates. This results in cleaner, healthier indoor air, which is crucial for occupant comfort and well-being.

Furthermore, the rooftop unit is built to withstand harsh weather conditions, featuring a durable cabinet constructed from galvanized steel with a corrosion-resistant finish. This enhances the unit's longevity and reliability over time.

In conclusion, the Carrier 50JS rooftop unit stands out in the commercial HVAC market due to its energy efficiency, advanced controls, quiet operation, and robust design. It represents a blend of state-of-the-art technology and practical features, making it a preferred choice for those looking to invest in reliable and sustainable climate control solutions.