Carrier instruction manual Physical Data-Unit 50GS, Physical Data-Unit 50GX

Page 8

Table 1—Physical Data—Unit 50GS

UNIT SIZE

018

024

030

 

036

042

048

060

NOMINAL CAPACITY (ton)

1-1/2

2

2-1/2

 

3

3-1/2

4

5

OPERATING WEIGHT (lb.)

254

260

258

 

268

294

324

389

COMPRESSOR

 

 

Reciprocating

 

 

Scroll

Reciprocating

REFRIGERANT (R-22)

2.6

3.5

3.65

 

4.4

6.4

5.1

7.4

Quantity (lb.)

 

 

 

 

 

 

 

 

 

REFRIGERANT METERING DEVICE

 

 

 

 

Accurater

 

 

 

Orifice ID (in.)

.034

.034

.034

 

.032

.034

.032

.030

CONDENSER COIL

1...17

1...17

1...17

 

1...17

1...17

1...17

2...17

Rows...Fins/in.

 

6.1

9.1

9.1

 

10.9

9.1

12.3

12.3

Face Area (sq. ft.)

 

 

 

 

 

 

 

 

 

CONDENSER FAN

2000

2400

2400

 

3000

3000

3600

3600

Nominal Cfm

 

22

22

22

 

18

22

22

22

Diameter

 

1/8 (825)

1/8 (825)

1/8 (825)

 

1/4 (1100)

1/4 (1100)

1/4 (1100)

1/4 (1100)

Motor Hp (Rpm)

 

 

 

 

 

 

 

 

 

EVAPORATOR COIL

2...15

2...15

2...15

 

3...15

4...15

3...15

4...15

Rows...Fins/in.

 

3.1

3.1

3.7

 

3.06

3.06

4.7

4.7

Face Area (sq. ft.)

 

 

 

 

 

 

 

 

 

EVAPORATOR BLOWER

600

800

1000

 

1200

1400

1600

2000

Nominal Airflow (Cfm)

 

10x10

10x10

10x10

 

11x10

11x10

11x10

11x10

Size (in.)

 

1/4 (825)

1/4 (1075)

1/4 (1075)

 

1/2 (1075)

3/4 (1075)

3/4 (1075)

1.0 (1100)

Motor HP (RPM)

 

 

 

 

 

 

 

 

 

RETURN-AIR FILTERS (in.)*

20x20

20x20

20x20

 

20x24

20x24

24x30

24x30

Throwaway

 

 

 

 

 

 

 

 

 

*Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft./min. for throwaway type or 450 ft./min. for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.

Table 2—Physical Data—Unit 50GX

UNIT SIZE

024

030

036

 

042

048

060

NOMINAL CAPACITY (ton)

2

2-1/2

3

 

3-1/2

4

5

OPERATING WEIGHT (lb.)

270

291

299

 

321

326

399

COMPRESSOR

 

 

 

Scroll

 

 

REFRIGERANT (R-22)

3.7

4.4

5.2

 

7.6

8.3

8.1

Quantity (lb.)

 

 

 

 

 

 

 

 

REFRIGERANT METERING DEVICE

 

 

Accurater

 

 

Orifice ID (in.)

.034

.030

.032

 

.034

.034

.032

CONDENSER COIL

1...17

1...17

2...17

 

2...17

2...17

2...17

Rows...Fins/in.

 

10.8

12.7

9.1

 

9.1

12.3

16.4

Face Area (sq. ft.)

 

 

 

 

 

 

 

 

CONDENSER FAN

2350

2350

2350

 

3300

3300

3300

Nominal Cfm

 

22

22

22

 

22

22

22

Diameter (in.)

 

1/8 (825)

1/8 (825)

1/8 (825)

 

1/4 (1100)

1/4 (1100)

1/4 (1100)

Motor Hp (Rpm)

 

 

 

 

 

 

 

 

EVAPORATOR COIL

3...15

3...15

3...15

 

3...15

4...15

4...15

Rows...Fins/in.

 

3.1

3.1

3.7

 

4.7

4.7

4.7

Face Area (sq. ft.)

 

 

 

 

 

 

 

 

EVAPORATOR BLOWER

800

1000

1200

 

1400

1600

1750

Nominal Airflow (Cfm)

 

10x10

10x10

11x10

 

11x10

11x10

11x10

Size (in.)

 

1/4 (1075)

1/4 (1075)

1/2 (1075)

 

3/4 (1075)

3/4 (1075)

1.0 (1040)

Motor Hp (RPM)

 

 

 

 

 

 

 

 

RETURN-AIR FILTERS (in.)*

20x20

20x20

20x24

 

20x30

24x30

24x30

Throwaway

 

 

 

 

 

 

 

 

*Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft./min. for throwaway type or 450 ft./min. for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.

CONFIGURING UNITS FOR DOWNFLOW (VERTICAL) DIS- CHARGE

Before performing service or maintenance operations on the system, turn off main power to unit and install lockout tag or electrical shock could result.

2. Remove return duct cover located on duct panel by breaking four (4) connecting tabs with screwdriver and a hammer. (Fig. 8 & 9)

3. To remove supply duct cover, break front and right side connecting tabs with a screwdriver and a hammer. Push louver down to break rear and left side tabs. (Fig. 8 & 9)

4. If unit ductwork is to be attached to vertical opening flanges on the unit composite base (jackstand applications only), do so

1.Open all electrical disconnects and install lockout tag before starting any service work.

8

at this time. Collect ALL screws that were removed. Do not leave screws on rooftop as permanent damage to the roof may occur.

Page 7 Page 9
Image 8
Page 7 Page 9
Contents Table of Contents Safety ConsiderationsIntroduction 50GS018-042 and 50GX024-036 Unit Dimensions Installation Inspection50GS048-060 and 50GX042-060 Unit Dimensions Roof Curb Dimensions 50GS and 50GX Unit Corner Weights Suggested Rigging Physical Data-Unit 50GX Configuring Units for Downflow Vertical DIS- ChargePhysical Data-Unit 50GS Supply and Return Duct Opening Standard Connection HIGH-VOLTAGE ConnectionsControl Voltage Connections Electrical Data-50GS MocpElectrical Data-50GX MCA MocpTransformer Protection PRE-START-UPStart UP Cooling Section and Make ADJUST- Ments Checking and Adjusting Refrigerant ChargeSTART-UP Checking Cooling Control OperationWiring Diagram 208/230-60-1 Wiring Diagram 208/230-60-3 Wiring Diagram Indoor Airflow and Airflow Adjustments MaintenanceColor Coding for 208/230-V Motor Leads Color Coding for 460-V GE Motor Leads460 Volt Unit Watts 281 282 278 276 Cfm 833 776 702 638 554 Cooling Charging Chart, 50GS018 Units Cooling Charging Chart, 50GS042 Units Evaporator Blower and MotorCooling Charging Chart, 50GX030 Units Refrigerant Circuit Condenser COIL, Evaporator COIL, and CONDEN- Sate Drain PANCondenser FAN Troubleshooting START-UP ChecklistEvaporator Airflow Liquid Line StrainerTroubleshooting-Cooling Symptom Cause RemedySTART-UP Checklist Remove and Store in JOB File Book Catalog No Form 50GS,GX-4SI Replaces 50GS,GX-3SI Tab

50GX, 50GS specifications

Carrier has long been a leader in the HVAC industry, and its latest offerings, the 50GX and 50GS series, continue this tradition. These units stand out for their robust design, advanced technology, and energy-efficient operation, making them ideal choices for commercial and light industrial applications.

The Carrier 50GX is a packaged rooftop unit known for its innovative features aimed at enhancing energy efficiency while ensuring optimal indoor air quality. It employs a variable-speed compressor, which allows for precise temperature control and reduced energy consumption. The 50GX is equipped with microprocessor controls that optimize performance and simplify maintenance, offering real-time diagnostics and monitoring.

One of the standout technologies in the 50GX is its use of R-410A refrigerant, a greener alternative that reduces environmental impact without compromising cooling performance. This refrigerant is designed to deliver superior cooling efficiency while meeting strict environmental regulations. Additionally, the system features an integrated economizer, which takes advantage of outside air to improve energy efficiency during cooler months, reducing reliance on mechanical cooling.

The 50GS series, while similar in many respects to the 50GX, is tailored for applications requiring heating solutions. These units offer gas heat as an option, providing flexibility for varying climate conditions. The 50GS also incorporates an advanced heat exchanger design that maximizes heat transfer efficiency and reduces operational costs.

Both the 50GX and 50GS units are built with durability in mind. They feature a galvanized steel cabinet with a powder-coated finish, providing resistance to rust and corrosion. The robust construction ensures a long lifespan even in challenging environments.

Maintenance is made easier with these models, thanks to their accessible design that allows for quick servicing. Both the 50GX and 50GS units come with a host of customizable options, including different airflow configurations and additional filtration systems to enhance air quality.

In conclusion, the Carrier 50GX and 50GS series represent the pinnacle of HVAC technology with their focus on energy efficiency, environmental sustainability, and robust construction. These units are ideal for customers looking to invest in reliable and efficient climate control solutions for their facilities, combining advanced technology with time-tested engineering.
Top Page Image Contents